Patent Application
20170355932
The present disclosure relates to cleaning compositions that include a nuclease enzyme and tannins. The present disclosure also relates to methods of making and using such cleaning compositions. The present disclosure also relates to the use of tannins.
The laundry detergent formulator is constantly aiming to improve the performance of detergent compositions, particularly on malodorous soils. Nuclease enzymes are useful in providing malodor-reducing benefits, but their overall performance can be improved.
There is a need for improved cleaning compositions that provide malodor-reducing benefits.
The present disclosure relates to a cleaning composition that includes a nuclease enzyme and tannins.
The present disclosure also relates to a method of cleaning a surface, preferably a textile, where the method includes mixing the cleaning composition according to the present disclosure with water to form an aqueous liquor and contacting a surface, preferably a textile, with the aqueous liquor in a laundering step.
The present disclosure also relates to the use of tannins in a cleaning composition to enhance the malodor-reducing benefits of a nuclease enzyme.
The present disclosure relates to cleaning compositions that include a nuclease enzyme and tannins. Without wishing to be bound by theory, it is believed that when nuclease enzymes act on soils on a target surface (such as a fabric), oxidizable products from the enzymatic reaction can remain or redeposit on the surface. It is believed that tannins deposit on sites where oxidizable species are present, and entrap them, thereby preventing their release in the headspace. It is also believed that tannins prevent the oxidation of oxidizable species due to their antioxidant properties.
The components of the compositions and processes of the present disclosure are described in more detail below.
As used herein, the articles “a” and “an” when used in a claim, are understood to mean one or more of what is claimed or described. As used herein, the terms “include,” “includes,” and “including” are meant to be non-limiting. The compositions of the present disclosure can comprise, consist essentially of, or consist of, the components of the present disclosure.
The terms “substantially free of” or “substantially free from” may be used herein. This means that the indicated material is at the very minimum not deliberately added to the composition to form part of it, or, preferably, is not present at analytically detectable levels. It is meant to include compositions whereby the indicated material is present only as an impurity in one of the other materials deliberately included. The indicated material may be present, if at all, at a level of less than 1%, or less than 0.1%, or less than 0.01%, or even 0%, by weight of the composition.
Unless otherwise noted, all component or composition levels are in reference to the active portion of that component or composition, and are exclusive of impurities, for example, residual solvents or by-products, which may be present in commercially available sources of such components or compositions.
All temperatures herein are in degrees Celsius (° C.) unless otherwise indicated. Unless otherwise specified, all measurements herein are conducted at 20° C. and under the atmospheric pressure.
In all embodiments of the present disclosure, all percentages are by weight of the total composition, unless specifically stated otherwise. All ratios are weight ratios, unless specifically stated otherwise.
It should be understood that every maximum numerical limitation given throughout this specification includes every lower numerical limitation, as if such lower numerical limitations were expressly written herein. Every minimum numerical limitation given throughout this specification will include every higher numerical limitation, as if such higher numerical limitations were expressly written herein. Every numerical range given throughout this specification will include every narrower numerical range that falls within such broader numerical range, as if such narrower numerical ranges were all expressly written herein.
As used herein, the term “alkoxy” is intended to include C1-C8 alkoxy and C1-C8 alkoxy derivatives of polyols having repeating units such as butylene oxide, glycidol oxide, ethylene oxide or propylene oxide.
As used herein, unless otherwise specified, the terms “alkyl” and “alkyl capped” are intended to include C1-C18 alkyl groups, or even C1-C6 alkyl groups.
As used herein, unless otherwise specified, the term “aryl” is intended to include C3-12 aryl groups.
As used herein, unless otherwise specified, the term “arylalkyl” and “alkaryl” are equivalent and are each intended to include groups comprising an alkyl moiety bound to an aromatic moiety, typically having C1-C18 alkyl groups and, in one aspect, C1-C6 alkyl groups.
The terms “ethylene oxide,” “propylene oxide” and “butylene oxide” may be shown herein by their typical designation of “EO,” “PO” and “BO,” respectively.
As used herein, the term “cleaning and/or treatment composition” includes, unless otherwise indicated, granular, powder, liquid, gel, paste, unit dose, bar form and/or flake type washing agents and/or fabric treatment compositions, including but not limited to products for laundering fabrics, fabric softening compositions, fabric enhancing compositions, fabric freshening compositions, and other products for the care and maintenance of fabrics, and combinations thereof. Such compositions may be pre-treatment compositions for use prior to a washing step or may be rinse added compositions, as well as cleaning auxiliaries, such as bleach additives and/or “stain-stick” or pre-treat compositions or substrate-laden products such as dryer added sheets.
As used herein, “cellulosic substrates” are intended to include any substrate which comprises cellulose, either 100% by weight cellulose or at least 20% by weight, or at least 30% by weight or at least 40 or at least 50% by weight or even at least 60% by weight cellulose. Cellulose may be found in wood, cotton, linen, jute, and hemp. Cellulosic substrates may be in the form of powders, fibers, pulp and articles formed from powders, fibers and pulp. Cellulosic fibers, include, without limitation, cotton, rayon (regenerated cellulose), acetate (cellulose acetate), triacetate (cellulose triacetate), and mixtures thereof. Typically cellulosic substrates comprise cotton. Articles formed from cellulosic fibers include textile articles such as fabrics. Articles formed from pulp include paper.
As used herein, the term “maximum extinction coefficient” is intended to describe the molar extinction coefficient at the wavelength of maximum absorption (also referred to herein as the maximum wavelength), in the range of 400 nanometers to 750 nanometers.
As used herein “average molecular weight” is reported as a weight average molecular weight, as determined by its molecular weight distribution; as a consequence of their manufacturing process, polymers disclosed herein may contain a distribution of repeating units in their polymeric moiety.
As used herein the term “variant” refers to a polypeptide that contains an amino acid sequence that differs from a wild type or reference sequence. A variant polypeptide can differ from the wild type or reference sequence due to a deletion, insertion, or substitution of a nucleotide(s) relative to said reference or wild type nucleotide sequence. The reference or wild type sequence can be a full-length native polypeptide sequence or any other fragment of a full-length polypeptide sequence. A polypeptide variant generally has at least about 70% amino acid sequence identity with the reference sequence, but may include 75% amino acid sequence identity within the reference sequence, 80% amino acid sequence identity within the reference sequence, 85% amino acid sequence identity with the reference sequence, 86% amino acid sequence identity with the reference sequence, 87% amino acid sequence identity with the reference sequence, 88% amino acid sequence identity with the reference sequence, 89% amino acid sequence identity with the reference sequence, 90% amino acid sequence identity with the reference sequence, 91% amino acid sequence identity with the reference sequence, 92% amino acid sequence identity with the reference sequence, 93% amino acid sequence identity with the reference sequence, 94% amino acid sequence identity with the reference sequence, 95% amino acid sequence identity with the reference sequence, 96% amino acid sequence identity with the reference sequence, 97% amino acid sequence identity with the reference sequence, 98% amino acid sequence identity with the reference sequence, 98.5% amino acid sequence identity with the reference sequence or 99% amino acid sequence identity with the reference sequence.
As used herein, the term “solid” includes granular, powder, bar and tablet product forms.
As used herein, the term “fluid” includes liquid, gel, paste, and gas product forms.
The present disclosure relates to cleaning compositions. The cleaning composition may be selected from the group of light duty liquid detergents compositions, heavy duty liquid detergent compositions, hard surface cleaning compositions, detergent gels commonly used for laundry, bleaching compositions, laundry additives, fabric enhancer compositions, shampoos, body washes, other personal care compositions, and mixtures thereof. The cleaning composition may be a hard surface cleaning composition (such as a dishwashing composition) or a laundry composition (such as a heavy duty liquid detergent composition).
The cleaning compositions may be in any suitable form. The composition can be selected from a liquid, solid, or combination thereof. As used herein, “liquid” includes free-flowing liquids, as well as pastes, gels, foams and mousses. Non-limiting examples of liquids include light duty and heavy duty liquid detergent compositions, fabric enhancers, detergent gels commonly used for laundry, bleach and laundry additives. Gases, e.g., suspended bubbles, or solids, e.g. particles, may be included within the liquids. A “solid” as used herein includes, but is not limited to, powders, agglomerates, and mixtures thereof. Non-limiting examples of solids include: granules, micro-capsules, beads, noodles, and pearlised balls. Solid compositions may provide a technical benefit including, but not limited to, through-the-wash benefits, pre-treatment benefits, and/or aesthetic effects.
The cleaning composition may be in the form of a unitized dose article, such as a tablet or in the form of a pouch. Such pouches typically include a water-soluble film, such as a polyvinyl alcohol water-soluble film, that at least partially encapsulates a composition. Suitable films are available from MonoSol, LLC (Indiana, USA). The composition can be encapsulated in a single or multi-compartment pouch. A multi-compartment pouch may have at least two, at least three, or at least four compartments. A multi-compartmented pouch may include compartments that are side-by-side and/or superposed. The composition contained in the pouch may be liquid, solid (such as powders), or combinations thereof.
The nuclease enzyme is an enzyme capable of cleaving the phosphodiester bonds between the nucleotide sub-units of nucleic acids. The nuclease enzyme herein is preferably a deoxyribonuclease or ribonuclease enzyme or a functional fragment thereof. By functional fragment or part is meant the portion of the nuclease enzyme that catalyzes the cleavage of phosphodiester linkages in the DNA backbone and so is a region of said nuclease protein that retains catalytic activity. Thus it includes truncated, but functional versions, of the enzyme and/or variants and/or derivatives and/or homologues whose functionality is maintained.
Preferably the nuclease enzyme is a deoxyribonuclease, preferably selected from any of the classes E.C. 3.1.21.x, where x=1, 2, 3, 4, 5, 6, 7, 8 or 9, E.C. 3.1.22.y where y=1, 2, 4 or 5, E.C. 3.1.30.z where z=1 or 2, E.C. 3.1.31.1 and mixtures thereof.
Nucleases in class E.C. 3.1.21.x cleave at the 3′ hydroxyl to liberate 5′ phosphomonoesters as follows:
Nuclease enzymes from class E.C. 3.1.21.x and especially where x=1 are particularly preferred.
Nucleases in class E.C. 3.1.22.y cleave at the 5′ hydroxyl to liberate 3′ phosphomonoesters. Enzymes in class E.C. 3.1.30.z may be preferred as they act on both DNA and RNA and liberate 5′-phosphomonoesters. Suitable examples from class E.C. 3.1.31.2 are described in US2012/0135498A, such as SEQ ID NO:3 therein. Such enzymes are commercially available as DENARASE® enzyme from c-LECTA.
Nuclease enzymes from class E.C. 3.1.31.1 produce 3′phosphomonoesters.
Preferably, the nuclease enzyme comprises a microbial enzyme. The nuclease enzyme may be fungal or bacterial in origin. Bacterial nucleases may be most preferred. Fungal nucleases may be most preferred.
The microbial nuclease is obtainable from Bacillus, such as a Bacillus licheniformis or Bacillus subtilis bacterial nucleases. A preferred nuclease is obtainable from Bacillus licheniformis, preferably from strain EI-34-6. A preferred deoxyribonuclease is a variant of Bacillus licheniformis, from strain EI-34-6 nucB deoxyribonuclease defined in SEQ ID NO:1 herein, or variant thereof, for example having at least 70% or 75% or 80% or 85% or 90% or 95%, 96%, 97%, 98%, 99% or 100% identical thereto.
Other suitable nucleases are defined in SEQ ID NO:2 herein, or variant thereof, for example having at least 70% or 75% or 80% or 85% or 90% or 95%, 96%, 97%, 98%, 99% or 100% identical thereto. Other suitable nucleases are defined in SEQ ID NO:3 herein, or variant thereof, for example having at least 70% or 75% or 80% or 85% or 90% or 95%, 96%, 97%, 98%, 99% or 100% identical thereto.
A fungal nuclease is obtainable from Aspergillus, for example Aspergillus oryzae. A preferred nuclease is obtainable from Aspergillus oryzae defined in SEQ ID NO: 5 herein, or variant thereof, for example having at least 60% or 70% or 75% or 80% or 85% or 90% or 95%, 96%, 97%, 98%, 99% or 100% identical thereto.
Another suitable fungal nuclease is obtainable from Trichoderma, for example Trichoderma harzianum. A preferred nuclease is obtainable from Trichoderma harzianum defined in SEQ ID NO: 6 herein, or variant thereof, for example having at least 60% or 70% or 75% or 80% or 85% or 90% or 95%, 96%, 97%, 98%, 99% or 100% identical thereto.
Other fungal nucleases include those encoded by the DNA sequences of Aspergillus oryzae RIB40, Aspergillus oryzae 3.042, Aspergillus flavus NRRL3357, Aspergillus parasiticus SU-1, Aspergillus nomius NRRL13137, Trichoderma reesei QM6a, Trichoderma virens Gv29-8, Oidiodendron maius Zn, Metarhizium guizhouense ARSEF 977, Metarhizium majus ARSEF 297, Metarhizium robertsii ARSEF 23, Metarhizium acridum CQMa 102, Metarhizium brunneum ARSEF 3297, Metarhizium anisopliae, Colletotrichum fioriniae PJ7, Colletotrichum sublineola, Trichoderma atroviride IMI 206040, Tolypocladium ophioglossoides CBS 100239, Beauveria bassiana ARSEF 2860, Colletotrichum higginsianum, Hirsutella minnesotensis 3608, Scedosporium apiospermum, Phaeomoniella chlamydospora, Fusarium verticillioides 7600, Fusarium oxysporum f. sp. cubense race 4, Colletotrichum graminicola M1.001, Fusarium oxysporum FOSC 3-a, Fusarium avenaceum, Fusarium langsethiae, Grosmannia clavigera kw1407, Claviceps purpurea 20.1, Verticillium longisporum, Fusarium oxysporum f. sp. cubense race 1, Magnaporthe oryzae 70-15, Beauveria bassiana D1-5, Fusarium pseudograminearum CS3096, Neonectria ditissima, Magnaporthiopsis poae ATCC 64411, Cordyceps militaris CM01, Marssonina brunnea f. sp. ‘multigermtubi’ MB_ml, Diaporthe ampelina, Metarhizium album ARSEF 1941, Colletotrichum gloeosporioides Nara gc5, Madurella mycetomatis, Metarhizium brunneum ARSEF 3297, Verticillium alfalfae VaMs.102, Gaeumannomyces graminis var. tritici R3-111a-1, Nectria haematococca mpVI 77-13-4, Verticillium longisporum, Verticillium dahliae VdLs.17, Torrubiella hemipterigena, Verticillium longisporum, Verticillium dahliae VdLs.17, Botrytis cinerea B05.10, Chaetomium globosum CBS 148.51, Metarhizium anisopliae, Stemphylium lycopersici, Sclerotinia borealis F-4157, Metarhizium robertsii ARSEF 23, Myceliophthora thermophila ATCC 42464, Phaeosphaeria nodorum SN15, Phialophora attae, Ustilaginoidea virens, Diplodia seriata, Ophiostoma piceae UAMH 11346, Pseudogymnoascus pannorum VKM F-4515 (FW-2607), Bipolaris oryzae ATCC 44560, Metarhizium guizhouense ARSEF 977, Chaetomium thermophilum var. thermophilum DSM 1495, Pestalotiopsis fici W106-1, Bipolaris zeicola 26-R-13, Setosphaeria turcica Et28A, Arthroderma otae CBS 113480 and Pyrenophora tritici-repentis Pt-1C-BFP.
Preferably the nuclease is an isolated nuclease.
Preferably the nuclease enzyme is present in a the laundering aqueous solution in an amount of from 0.01 ppm to 1000 ppm of the nuclease enzyme, or from 0.05 or from 0.1 ppm to 750 or 500 ppm.
The nucleases may also give rise to biofilm-disrupting effects.
In a preferred composition, the composition additionally comprises a β-N-acetylglucosaminidase enzyme from E.C. 3.2.1.52, preferably an enzyme having at least 70%, or at least 75% or at least 80% or at least 85% or at least 90% or at least 95% or at least 96% or at least 97% or at least 98% or at least 99% or at least or 100% identity to SEQ ID NO:4.
The cleaning compositions of the present disclosure comprise tannins. Tannins are polyphenolic secondary metabolites of higher plants, and are either galloyl esters and their derivatives, in which galloyl moieties or their derivatives are attached to a variety of polyol-, catechin- and triterpenoid cores (gallotannis, ellagitannins and complex tannins), or they are oligomeric and polymeric proanthocyanidis that can possess interflavanyl coupling and substitution patterns (condensed tannins). The cleaning compositions of the present disclosure may comprise tannins selected from the group consisting of gallotannins, ellagitannins, complex tannins, condensed tannins, and combinations thereof. Each of these is described in more detail below, and more details on the classification of tannins can be found in K. Khanbabaee, T. van Ree, Tannins: Classification and Definition, The Royal Society of Chemistry 2001, pages 641-649. Tannins may provide antioxidant benefits to cleaning compositions or uses thereof.
The cleaning compositions of the present disclosure may comprise, based on total cleaning composition weight, from about 0.001% to about 1.5%, preferably from about 0.05% to about 1%, more preferably from about 0.05% to about 0.5% of a tannin, preferably of a tannin selected from the group consisting of gallotannins, ellagitannins, condensed tannins, complex tannins and mixtures thereof.
The tannins of the present disclosure may comprise gallotannins. Gallotannins are all those tannins in which galloyl units are bound to diverse polyol-, catechin- or triterpenoid units. Gallotannins may have a structure according to Formula I:
Gallotannins are formed from the reaction of glucose with dimmers or higher oligomers of gallic acid. Due to their complex structure, gallotannins have many isomers. These have the same molecular mass, but chemical properties such as susceptibility to hydrolysis and chromatographic behaviour are structure dependent.
The tannins of the present disclosure may comprise ellagitannins. Ellagitannins are those tannins in which at least two galloyl units are C—C coupled to each other, and do not contain a glycosidically linked catechin unit. Ellagitannins are produced by the oxidative coupling of galloyl groups in gallotannins Examples of ellagitannins may include those having a structure according to Formula II:
Ellagitannins may include those having the following structure(s):
The tannins of the present disclosure may comprise complex tannins. As used herein, “complex tannins” are tannins in which a catechin unit is bound glycosidically to a gallotannin or an ellagitannin unit. For example, complex tannins may have a structure according any of those shown below:
The tannins of the present disclosure may comprise condensed tannins. As used herein, “condensed tannins” are oligomeric and polymeric proanthocyanidins formed by linkage of C-4 of one catechin with C-8 or C-6 of the next monomeric catechin. Condensed tannins may be linear, branched, or a mixture thereof.
The condensed tannins may comprise monomeric catechins. The monomeric catechins may independently have a structure according to Formula III:
wherein R is selected from —H or —OH.
The monomeric catechins may be independently selected from catchins, epicatechins, gallocatechins, epigallocatechins, and derivatives thereof. Catechins, epicatechins, epigallocatechins, and derivatives thereof (including epicatechin-3-galletes and epigallocatechin-3-galletes) may have the following respective structures.
The condensed tannins may have a structure according to Formula IV:
wherein each R is independently selected from —H and —OH, and wherein n is from about 2 to about 200.
Tannins of the present disclosure may be derived or extracted from any suitable source. Table 1 show classes of tannins that may be found in common higher plants.
Rhus
Shinopsis
balansae
Shinopsis
lorentzii
Vitis
vinifera
acacia
mollissima
Acacia
mearnsii
Caesalpinia
spinosa
Sesbania
Lotus
Onobrychis
Vicia
faba
Quercus sp.
Castanea
sativa
Lithocarpus
glaber sp.
Quercus
Acer
Pinus
Picea
Sorghum
Eucalyptus
Eucalyptus
redunca
Mirtus
Betula
Terminalia
chebula
Prunus sp.
Malus sp.
Areca
catechu
Commiphora
Angolensis sp.
Canarium sp.
Diospyros
Preferably, gallotannins may be derived or extracted from a source selected from sumac galls, Aleppo oak galls, and/or sumac leaves. More preferably, gallotannins may be selected from the group consisting of tannins derived or extracted from Aleppo oak galls.
Preferably, ellagitannins may be derived or extracted from a source selected from chestnut bark, and/or chestnut wood. More preferably, ellagitannins may be selected from the group consisting of tannins derived or extracted from chestnut bark.
Preferably, complex tannins may be derived or extracted from a source selected from persimmon and/or tea leaves.
Preferably, condensed tannins may be derived extracted from a source selected from bark pine, querbracho, mimosa bark, spruce bark, and/or grape seeds. More preferably, condensed tannins may be selected from the group consisting of tannins derived or extracted from bark pine and querbracho.
Test methods related to tannins are provided in the Test Methods section below.
The cleaning compositions described herein may include other adjunct components. The cleaning compositions may comprise a surfactant system as described below. The cleaning composition may comprise a fabric shading agent as described below and/or an additional enzyme selected from lipases, amylases, proteases, mannanases, pectate lyases, cellulases, cutinases, and mixtures thereof. The cleaning composition may comprise a cleaning cellulase.
The composition may comprise a fabric shading agent. Suitable fabric shading agents include dyes, dye-clay conjugates, and pigments. Suitable dyes include small molecule dyes and polymeric dyes. Suitable small molecule dyes include small molecule dyes selected from the group consisting of dyes falling into the Colour Index (C.I.) classifications of Direct Blue, Direct Red, Direct Violet, Acid Blue, Acid Red, Acid Violet, Basic Blue, Basic Violet and Basic Red, or mixtures thereof. Preferred dyes include alkoxylated azothiophenes, Solvent Violet 13, Acid Violet 50 and Direct Violet 9.
The cleaning compositions described herein may include one or more of the following non-limiting list of ingredients: fabric care benefit agent; detersive enzyme; deposition aid; rheology modifier; builder; chelant; bleach; bleaching agent; bleach precursor; bleach booster; bleach catalyst; perfume and/or perfume microcapsules; perfume loaded zeolite; starch encapsulated accord; polyglycerol esters; whitening agent; pearlescent agent; enzyme stabilizing systems; scavenging agents including fixing agents for anionic dyes, complexing agents for anionic surfactants, and mixtures thereof; optical brighteners or fluorescers; polymer including but not limited to soil release polymer and/or soil suspension polymer; dispersants; antifoam agents; non-aqueous solvent; fatty acid; suds suppressors, e.g., silicone suds suppressors; cationic starches; scum dispersants; substantive dyes; colorants; opacifier; antioxidant; hydrotropes such as toluenesulfonates, cumenesulfonates and naphthalenesulfonates; color speckles; colored beads, spheres or extrudates; clay softening agents; anti-bacterial agents. Additionally or alternatively, the compositions may comprise surfactants, quaternary ammonium compounds, and/or solvent systems. Quaternary ammonium compounds may be present in fabric enhancer compositions, such as fabric softeners, and comprise quaternary ammonium cations that are positively charged polyatomic ions of the structure NR4+, where R is an alkyl group or an aryl group.
The cleaning composition may comprise a surfactant system. The cleaning composition may comprise from about 1% to about 80%, or from 1% to about 60%, preferably from about 5% to about 50% more preferably from about 8% to about 40%, by weight of the cleaning composition, of a surfactant system.
Surfactants of the present surfactant system may be derived from natural and/or renewable sources.
The surfactant system may comprise an anionic surfactant, more preferably an anionic surfactant selected from the group consisting of alkyl sulfate, alkyl alkoxy sulfate, especially alkyl ethoxy sulfate, alkyl benzene sulfonate, paraffin sulfonate and mixtures thereof. The surfactant system may further comprise a surfactant selected from the group consisting of nonionic surfactant, cationic surfactant, amphoteric surfactant, zwitterionic surfactant, and mixtures thereof. The surfactant system may comprise an amphoteric surfactant; the amphoteric surfactant may comprise an amine oxide surfactant. The surfactant system may comprise a nonionic surfactant; the nonionic surfactant may comprise an ethoxylated nonionic surfactant.
Alkyl sulfates are preferred for use herein and also alkyl ethoxy sulfates; more preferably a combination of alkyl sulfates and alkyl ethoxy sulfates with a combined average ethoxylation degree of less than 5, preferably less than 3, more preferably less than 2 and more than 0.5 and an average level of branching of from about 5% to about 40%.
The composition of the invention comprises amphoteric and/or zwitterionic surfactant, preferably the amphoteric surfactant comprises an amine oxide, preferably an alkyl dimethyl amine oxide, and the zwitteronic surfactant comprises a betaine surfactant.
The most preferred surfactant system for the detergent composition of the present invention comprise from 1% to 40%, preferably 6% to 35%, more preferably 8% to 30% weight of the total composition of an anionic surfactant, preferably an alkyl alkoxy sulfate surfactant, more preferably an alkyl ethoxy sulfate, combined with 0.5% to 15%, preferably from 1% to 12%, more preferably from 2% to 10% by weight of the composition of amphoteric and/or zwitterionic surfactant, more preferably an amphoteric and even more preferably an amine oxide surfactant, especially and alkyl dimethyl amine oxide. Preferably the composition further comprises a nonionic surfactant, especially an alcohol alkoxylate in particular and alcohol ethoxylate nonionic surfactant. It has been found that such surfactant system in combination with the polyetheramine of the invention provides excellent grease cleaning and good finish of the washed items.
Anionic Surfactant
Anionic surfactants include, but are not limited to, those surface-active compounds that contain an organic hydrophobic group containing generally 8 to 22 carbon atoms or generally 8 to 18 carbon atoms in their molecular structure and at least one water-solubilizing group preferably selected from sulfonate, sulfate, and carboxylate so as to form a water-soluble compound. Usually, the hydrophobic group will comprise a C8-C 22 alkyl, or acyl group. Such surfactants are employed in the form of water-soluble salts and the salt-forming cation usually is selected from sodium, potassium, ammonium, magnesium and mono-, di- or tri-C2-C3 alkanolammonium, with the sodium cation being the usual one chosen.
The anionic surfactant can be a single surfactant but usually it is a mixture of anionic surfactants. Preferably the anionic surfactant comprises a sulfate surfactant, more preferably a sulfate surfactant selected from the group consisting of alkyl sulfate, alkyl alkoxy sulfate and mixtures thereof. Preferred alkyl alkoxy sulfates for use herein are alkyl ethoxy sulfates.
Sulfated Anionic Surfactant
Preferably the sulfated anionic surfactant is alkoxylated, more preferably, an alkoxylated branched sulfated anionic surfactant having an alkoxylation degree of from about 0.2 to about 4, even more preferably from about 0.3 to about 3, even more preferably from about 0.4 to about 1.5 and especially from about 0.4 to about 1. Preferably, the alkoxy group is ethoxy. When the sulfated anionic surfactant is a mixture of sulfated anionic surfactants, the alkoxylation degree is the weight average alkoxylation degree of all the components of the mixture (weight average alkoxylation degree). In the weight average alkoxylation degree calculation the weight of sulfated anionic surfactant components not having alkoxylated groups should also be included.
Weight average alkoxylation degree=(x1*alkoxylation degree of surfactant 1+x2*alkoxylation degree of surfactant 2+ . . . )/(x1+x2+ . . . )
wherein x1, x2, . . . are the weights in grams of each sulfated anionic surfactant of the mixture and alkoxylation degree is the number of alkoxy groups in each sulfated anionic surfactant.
Preferably, the branching group is an alkyl. Typically, the alkyl is selected from methyl, ethyl, propyl, butyl, pentyl, cyclic alkyl groups and mixtures thereof. Single or multiple alkyl branches could be present on the main hydrocarbyl chain of the starting alcohol(s) used to produce the sulfated anionic surfactant used in the detergent of the invention. Most preferably the branched sulfated anionic surfactant is selected from alkyl sulfates, alkyl ethoxy sulfates, and mixtures thereof.
The branched sulfated anionic surfactant can be a single anionic surfactant or a mixture of anionic surfactants. In the case of a single surfactant the percentage of branching refers to the weight percentage of the hydrocarbyl chains that are branched in the original alcohol from which the surfactant is derived.
In the case of a surfactant mixture the percentage of branching is the weight average and it is defined according to the following formula:
Weight average of branching (%)=[(x1*wt % branched alcohol 1 in alcohol 1+x2*wt % branched alcohol 2 in alcohol 2+ . . . )/(x1+x2+ . . . )]*100
wherein x1, x2, . . . are the weight in grams of each alcohol in the total alcohol mixture of the alcohols which were used as starting material for the anionic surfactant for the detergent of the invention. In the weight average branching degree calculation the weight of anionic surfactant components not having branched groups should also be included.
Suitable sulfate surfactants for use herein include water-soluble salts of C8-C18 alkyl or hydroxyalkyl, sulfate and/or ether sulfate. Suitable counterions include alkali metal cation or ammonium or substituted ammonium, but preferably sodium.
The sulfate surfactants may be selected from C8-C18 primary, branched chain and random alkyl sulfates (AS); C8-C18 secondary (2,3) alkyl sulfates; C8-C18 alkyl alkoxy sulfates (AExS) wherein preferably x is from 1-30 in which the alkoxy group could be selected from ethoxy, propoxy, butoxy or even higher alkoxy groups and mixtures thereof.
Alkyl sulfates and alkyl alkoxy sulfates are commercially available with a variety of chain lengths, ethoxylation and branching degrees. Commercially available sulfates include, those based on Neodol alcohols ex the Shell company, Lial-Isalchem and Safol ex the Sasol company, natural alcohols ex The Procter & Gamble Chemicals company.
Preferably, the anionic surfactant comprises at least 50%, more preferably at least 60% and especially at least 70% of a sulfate surfactant by weight of the anionic surfactant. Especially preferred detergents from a cleaning view point are those in which the anionic surfactant comprises more than 50%, more preferably at least 60% and especially at least 70% by weight thereof of sulfate surfactant and the sulfate surfactant is selected from the group consisting of alkyl sulfates, alkyl ethoxy sulfates and mixtures thereof. Even more preferred are those in which the anionic surfactant is an alkyl ethoxy sulfate with a degree of ethoxylation of from about 0.2 to about 3, more preferably from about 0.3 to about 2, even more preferably from about 0.4 to about 1.5, and especially from about 0.4 to about 1. They are also preferred anionic surfactant having a level of branching of from about 5% to about 40%, even more preferably from about 10% to 35% and especially from about 20% to 30%.
Sulfonate Surfactant
Suitable anionic sulfonate surfactants for use herein include water-soluble salts of C8-C18 alkyl or hydroxyalkyl sulfonates; C11-C18 alkyl benzene sulfonates (LAS), modified alkylbenzene sulfonate (MLAS) as discussed in WO 99/05243, WO 99/05242, WO 99/05244, WO 99/05082, WO 99/05084, WO 99/05241, WO 99/07656, WO 00/23549, and WO 00/23548; methyl ester sulfonate (MES); and alpha-olefin sulfonate (AOS). Those also include the paraffin sulfonates may be monosulfonates and/or disulfonates, obtained by sulfonating paraffins of 10 to 20 carbon atoms. The sulfonate surfactant also include the alkyl glyceryl sulfonate surfactants.
Nonionic Surfactant
Nonionic surfactant, when present, is comprised in a typical amount of from 0.1% to 40%, preferably 0.2% to 20%, most preferably 0.5% to 10% by weight of the composition. Suitable nonionic surfactants include the condensation products of aliphatic alcohols with from 1 to 25 moles of ethylene oxide. The alkyl chain of the aliphatic alcohol can either be straight or branched, primary or secondary, and generally contains from 8 to 22 carbon atoms. Particularly preferred are the condensation products of alcohols having an alkyl group containing from 10 to 18 carbon atoms, preferably from 10 to 15 carbon atoms with from 2 to 18 moles, preferably 2 to 15, more preferably 5-12 of ethylene oxide per mole of alcohol. Highly preferred nonionic surfactants are the condensation products of guerbet alcohols with from 2 to 18 moles, preferably 2 to 15, more preferably 5-12 of ethylene oxide per mole of alcohol.
Other suitable non-ionic surfactants for use herein include fatty alcohol polyglycol ethers, alkylpolyglucosides and fatty acid glucamides.
Amphoteric Surfactant
The surfactant system may include amphoteric surfactant, such as amine oxide. Preferred amine oxides are alkyl dimethyl amine oxide or alkyl amido propyl dimethyl amine oxide, more preferably alkyl dimethyl amine oxide and especially coco dimethyl amino oxide. Amine oxide may have a linear or mid-branched alkyl moiety. Typical linear amine oxides include water-soluble amine oxides containing one R1 C8-18 alkyl moiety and 2 R2 and R3 moieties selected from the group consisting of C1-3 alkyl groups and C1-3 hydroxyalkyl groups. Preferably amine oxide is characterized by the formula R1-N(R2)(R3)O wherein R1 is a C8-18 alkyl and R2 and R3 are selected from the group consisting of methyl, ethyl, propyl, isopropyl, 2-hydroxethyl, 2-hydroxypropyl and 3-hydroxypropyl. The linear amine oxide surfactants in particular may include linear C10-C18 alkyl dimethyl amine oxides and linear C8-C12 alkoxy ethyl dihydroxy ethyl amine oxides. Preferred amine oxides include linear C10, linear C10-C12, and linear C12-C14 alkyl dimethyl amine oxides. As used herein “mid-branched” means that the amine oxide has one alkyl moiety having n1 carbon atoms with one alkyl branch on the alkyl moiety having n2 carbon atoms. The alkyl branch is located on the a carbon from the nitrogen on the alkyl moiety. This type of branching for the amine oxide is also known in the art as an internal amine oxide. The total sum of n1 and n2 is from 10 to 24 carbon atoms, preferably from 12 to 20, and more preferably from 10 to 16. The number of carbon atoms for the one alkyl moiety (n1) should be approximately the same number of carbon atoms as the one alkyl branch (n2) such that the one alkyl moiety and the one alkyl branch are symmetric. As used herein “symmetric” means that |n1−n2| is less than or equal to 5, preferably 4, most preferably from 0 to 4 carbon atoms in at least 50 wt %, more preferably at least 75 wt % to 100 wt % of the mid-branched amine oxides for use herein.
The amine oxide further comprises two moieties, independently selected from a C1-3 alkyl, a C1-3 hydroxyalkyl group, or a polyethylene oxide group containing an average of from about 1 to about 3 ethylene oxide groups. Preferably the two moieties are selected from a C1-3 alkyl, more preferably both are selected as a C1 alkyl.
Zwitterionic Surfactant
Other suitable surfactants include betaines, such as alkyl betaines, alkylamidobetaine, amidazoliniumbetaine, sulfobetaine (INCI Sultaines) as well as the Phosphobetaine and preferably meets formula (I):
R1—[CO—X(CH2)n]x—N+(R2)(R3)—(CH2)m—[CH(OH)—CH2]y—Y— (I)
wherein
Preferred betaines are the alkyl betaines of the formula (Ia), the alkyl amido propyl betaine of the formula (Ib), the Sulfo betaines of the formula (Ic) and the Amido sulfobetaine of the formula (Id);
R1—N+(CH3)2—CH2COO− (Ia)
R1—CO—NH(CH2)3—N+(CH3)2—CH2COO− (Ib)
R1—N+(CH3)2—CH2CH(OH)CH2SO3− (Ic)
R1—CO—NH—(CH2)3—N+(CH3)2—CH2CH(OH)CH2SO3— (Id)
in which R11 as the same meaning as in formula I. Particularly preferred betaines are the Carbobetaine [wherein Y−=COO−], in particular the Carbobetaine of the formula (Ia) and (Ib), more preferred are the Alkylamidobetaine of the formula (Ib).
Examples of suitable betaines and sulfobetaine are the following [designated in accordance with INCI]: Almondamidopropyl of betaines, Apricotam idopropyl betaines, Avocadamidopropyl of betaines, Babassuamidopropyl of betaines, Behenam idopropyl betaines, Behenyl of betaines, betaines, Canolam idopropyl betaines, Capryl/Capram idopropyl betaines, Carnitine, Cetyl of betaines, Cocamidoethyl of betaines, Cocam idopropyl betaines, Cocam idopropyl Hydroxysultaine, Coco betaines, Coco Hydroxysultaine, Coco/Oleam idopropyl betaines, Coco Sultaine, Decyl of betaines, Dihydroxyethyl Oleyl Glycinate, Dihydroxyethyl Soy Glycinate, Dihydroxyethyl Stearyl Glycinate, Dihydroxyethyl Tallow Glycinate, Dimethicone Propyl of PG-betaines, Erucam idopropyl Hydroxysultaine, Hydrogenated Tallow of betaines, Isostearam idopropyl betaines, Lauram idopropyl betaines, Lauryl of betaines, Lauryl Hydroxysultaine, Lauryl Sultaine, Milkam idopropyl betaines, Minkamidopropyl of betaines, Myristam idopropyl betaines, Myristyl of betaines, Oleam idopropyl betaines, Oleam idopropyl Hydroxysultaine, Oleyl of betaines, Olivamidopropyl of betaines, Palmam idopropyl betaines, Palm itam idopropyl betaines, Palmitoyl Carnitine, Palm Kernelam idopropyl betaines, Polytetrafluoroethylene Acetoxypropyl of betaines, Ricinoleam idopropyl betaines, Sesam idopropyl betaines, Soyam idopropyl betaines, Stearam idopropyl betaines, Stearyl of betaines, Tallowam idopropyl betaines, Tallowam idopropyl Hydroxysultaine, Tallow of betaines, Tallow Dihydroxyethyl of betaines, Undecylenam idopropyl betaines and Wheat Germam idopropyl betaines.
A preferred betaine is, for example, Cocoamidopropylbetaine.
The present disclosure relates to methods of making the compositions described herein. The compositions of the invention may be solid (for example granules or tablets) or liquid form. Preferably the compositions are in liquid form. They may be made by any process chosen by the formulator, including by a batch process, a continuous loop process, or combinations thereof.
When in the form of a liquid, the compositions of the invention may be aqueous (typically above 2 wt % or even above 5 or 10 wt % total water, up to 90 or up to 80 wt % or 70 wt % total water) or non-aqueous (typically below 2 wt % total water content). Typically the compositions of the invention will be in the form of an aqueous solution or uniform dispersion or suspension of optical brightener, DTI and optional additional adjunct materials, some of which may normally be in solid form, that have been combined with the normally liquid components of the composition, such as the liquid alcohol ethoxylate nonionic, the aqueous liquid carrier, and any other normally liquid optional ingredients. Such a solution, dispersion or suspension will be acceptably phase stable. When in the form of a liquid, the detergents of the invention preferably have viscosity from 1 to 1500 centipoises (1-1500 mPa*s), more preferably from 100 to 1000 centipoises (100-1000 mPa*s), and most preferably from 200 to 500 centipoises (200-500 mPa*s) at 20s-1 and 21° C. Viscosity can be determined by conventional methods. Viscosity may be measured using an AR 550 rheometer from TA instruments using a plate steel spindle at 40 mm diameter and a gap size of 500 μm. The high shear viscosity at 20s-1 and low shear viscosity at 0.05-1 can be obtained from a logarithmic shear rate sweep from 0.1-1 to 25-1 in 3 minutes time at 21 C. The preferred rheology described therein may be achieved using internal existing structuring with detergent ingredients or by employing an external rheology modifier. More preferably the detergents, such as detergent liquid compositions have a high shear rate viscosity of from about 100 centipoise to 1500 centipoise, more preferably from 100 to 1000 cps. Unit Dose detergents, such as detergent liquid compositions have high shear rate viscosity of from 400 to 1000 cps. Detergents such as laundry softening compositions typically have high shear rate viscosity of from 10 to 1000, more preferably from 10 to 800 cps, most preferably from 10 to 500 cps. Hand dishwashing compositions have high shear rate viscosity of from 300 to 4000 cps, more preferably 300 to 1000 cps.
The cleaning and/or treatment compositions in the form of a liquid herein can be prepared by combining the components thereof in any convenient order and by mixing, e.g., agitating, the resulting component combination to form a phase stable liquid detergent composition. In a process for preparing such compositions, a liquid matrix is formed containing at least a major proportion, or even substantially all, of the liquid components, e.g., nonionic surfactant, the non-surface active liquid carriers and other optional liquid components, with the liquid components being thoroughly admixed by imparting shear agitation to this liquid combination. For example, rapid stirring with a mechanical stirrer may usefully be employed. While shear agitation is maintained, substantially all of any anionic surfactants and the solid form ingredients can be added. Agitation of the mixture is continued, and if necessary, can be increased at this point to form a solution or a uniform dispersion of insoluble solid phase particulates within the liquid phase. After some or all of the solid-form materials have been added to this agitated mixture, particles of any enzyme material to be included, e.g., enzyme granulates, are incorporated. As a variation of the composition preparation procedure hereinbefore described, one or more of the solid components may be added to the agitated mixture as a solution or slurry of particles premixed with a minor portion of one or more of the liquid components. After addition of all of the composition components, agitation of the mixture is continued for a period of time sufficient to form compositions having the requisite viscosity and phase stability characteristics. Frequently this will involve agitation for a period of from about 30 to 60 minutes.
The adjunct ingredients in the compositions of this invention may be incorporated into the composition as the product of the synthesis generating such components, either with or without an intermediate purification step. Where there is no purification step, commonly the mixture used will comprise the desired component or mixtures thereof (and percentages given herein relate to the weight percent of the component itself unless otherwise specified) and in addition unreacted starting materials and impurities formed from side reactions and/or incomplete reaction. For example, for an ethoxylated or substituted component, the mixture will likely comprise different degrees of ethoxylation/substitution.
The present disclosure relates to methods of using the cleaning compositions of the present disclosure to clean a surface, such as a textile. In general, the method includes mixing the cleaning composition as described herein with water to form an aqueous liquor and contacting a surface, preferably a textile, with the aqueous liquor in a laundering step. The target surface may include a greasy soil.
The compositions of this invention, typically prepared as hereinbefore described, can be used to form aqueous washing/treatment solutions for use in the laundering/treatment of fabrics and/or hard surfaces. Generally, an effective amount of such a composition is added to water, for example in a conventional fabric automatic washing machine, to form such aqueous laundering solutions. The aqueous washing solution so formed is then contacted, typically under agitation, with the fabrics to be laundered/treated therewith. An effective amount of the detergent composition herein added to water to form aqueous laundering solutions can comprise amounts sufficient to form from about 500 to 25,000 ppm, or from 500 to 15,000 ppm of composition in aqueous washing solution, or from about 1,000 to 3,000 ppm of the detergent compositions herein will be provided in aqueous washing solution.
Typically, the wash liquor is formed by contacting the detergent with wash water in such an amount so that the concentration of the detergent in the wash liquor is from above 0 g/l to 5 g/l, or from 1 g/l, and to 4.5 g/l, or to 4.0 g/l, or to 3.5 g/l, or to 3.0 g/l, or to 2.5 g/l, or even to 2.0 g/l, or even to 1.5 g/l. The method of laundering fabric or textile may be carried out in a top-loading or front-loading automatic washing machine, or can be used in a hand-wash laundry application. In these applications, the wash liquor formed and concentration of laundry detergent composition in the wash liquor is that of the main wash cycle. Any input of water during any optional rinsing step(s) is not included when determining the volume of the wash liquor.
The wash liquor may comprise 40 litres or less of water, or 30 litres or less, or 20 litres or less, or 10 litres or less, or 8 litres or less, or even 6 litres or less of water. The wash liquor may comprise from above 0 to 15 litres, or from 2 litres, and to 12 litres, or even to 8 litres of water. Typically from 0.01 kg to 2 kg of fabric per litre of wash liquor is dosed into said wash liquor. Typically from 0.01 kg, or from 0.05 kg, or from 0.07 kg, or from 0.10 kg, or from 0.15 kg, or from 0.20 kg, or from 0.25 kg fabric per litre of wash liquor is dosed into said wash liquor. Optionally, 50 g or less, or 45 g or less, or 40 g or less, or 35 g or less, or 30 g or less, or 25 g or less, or 20 g or less, or even 15 g or less, or even 10 g or less of the composition is contacted to water to form the wash liquor. Such compositions are typically employed at concentrations of from about 500 ppm to about 15,000 ppm in solution. When the wash solvent is water, the water temperature typically ranges from about 5° C. to about 90° C. and, when the situs comprises a fabric, the water to fabric ratio is typically from about 1:1 to about 30:1. Typically the wash liquor comprising the detergent of the invention has a pH of from 3 to 11.5.
In one aspect, such method comprises the steps of optionally washing and/or rinsing said surface or fabric, contacting said surface or fabric with any composition disclosed in this specification then optionally washing and/or rinsing said surface or fabric is disclosed, with an optional drying step.
Drying of such surfaces or fabrics may be accomplished by any one of the common means employed either in domestic or industrial settings: machine drying or open-air drying. The fabric may comprise any fabric capable of being laundered in normal consumer or institutional use conditions, and the invention is particularly suitable for synthetic textiles such as polyester and nylon and especially for treatment of mixed fabrics and/or fibres comprising synthetic and cellulosic fabrics and/or fibres. As examples of synthetic fabrics are polyester, nylon, these may be present in mixtures with cellulosic fibres, for example, polycotton fabrics. The solution typically has a pH of from 7 to 11, more usually 8 to 10.5. The compositions are typically employed at concentrations from 500 ppm to 5,000 ppm in solution. The water temperatures typically range from about 5° C. to about 90° C. The water to fabric ratio is typically from about 1:1 to about 30:1.
The present disclosure further relates to a use of a tannin as described herein in a cleaning composition to enhance the malodor-reducing benefits of a nuclease enzyme.
Specifically contemplated combinations of the disclosure are herein described in the following numbered paragraphs. These combinations are intended to be illustrative in nature and are not intended to be limiting.
A. A cleaning composition comprising: a nuclease enzyme, and tannins.
B. A cleaning composition according to paragraph A, wherein the nuclease enzyme is a deoxyribonuclease enzyme, a ribonuclease enzyme, or a mixture thereof.
C. A cleaning composition according to any of paragraphs A-B, wherein the nuclease enzyme is selected from any of E.C. classes E.C. 3.1.21.x (where x=1, 2, 3, 4, 5, 6, 7, 8, 9), 3.1.22.y (where y=1, 2, 4, 5), E.C. 3.1.30.z (where z=1, 2) or E.C. 3.1.31.1, or mixtures thereof, preferably from E.C. 3.1.21, preferably E.C. 3.1.21.1.
D. A cleaning composition according to any of paragraphs A-C, wherein the nuclease enzyme comprises a deoxyribonuclease enzyme.
E. A cleaning composition according to any of paragraphs A-D, in which the enzyme comprises an enzyme having both RNase and DNase activity, preferably being from E.C. 3.1.30.2.
F. A cleaning composition according to any of paragraphs A-E, wherein the nuclease enzyme is a microbial enzyme, preferably a bacterial enzyme.
G. A cleaning composition according to any of paragraphs A-F, wherein the enzyme has an amino acid sequence having at least 85%, or at least 90 or at least 95% or even 100% identity with the amino acid sequence shown in SEQ ID NO:1, SEQ ID NO:2 or SEQ ID NO:3.
H. A cleaning composition according to any of paragraphs A-G, wherein the composition further comprises a β-N-acetylglucosaminidase enzyme from E.C. 3.2.1.52, preferably an enzyme having at least 70% identity to SEQ ID NO:4.
I. A cleaning composition according to any of paragraphs A-H, wherein the tannins are present in the cleaning composition at a level of from about 0.001% to about 1.5%, preferably from about 0.05% to about 1%, more preferably from about 0.05% to about 0.5%, by weight of the cleaning composition.
J. A cleaning composition according to any of paragraphs A-I, wherein the tannins are selected from the group consisting of gallotannins, ellagitannins, complex tannins, condensed tannins, and combinations thereof.
K. A cleaning composition according to any of paragraphs A-J, wherein the tannins comprise gallotannins.
L. A cleaning composition according to any of paragraphs A-K, wherein the gallotannins are derived from a source selected from sumac galls, Aleppo oak galls, sumac leaves, and combinations thereof, preferably Aleppo oak galls.
M. A cleaning composition according to any of paragraphs A-L, wherein the tannins comprise ellagitannins.
N. A cleaning composition according to any of paragraphs A-M, wherein the ellagitannins are derived from a source selected from chestnut bark, chestnut wood, or combinations thereof, preferably chestnut bark.
O. A cleaning composition according to any of paragraphs A-N, wherein the tannins comprise complex tannins.
P. A cleaning composition according to any of paragraphs A-O, wherein the complex tannins are derived from a source selected from persimmon, tea leaves, and combinations thereof.
Q. A cleaning composition according to any of paragraphs A-P, wherein the tannins comprise condensed tannins.
R. A cleaning composition according to any of paragraphs A-Q, wherein the condensed tannins are derived from a source selected from bark pine, querbracho, mimosa bark, spruce bark, grape seeds, and combinations thereof, preferably from bark pine and/or querbracho.
S. A cleaning composition according to any of paragraphs A-R, wherein the cleaning composition further comprises from about 1% to about 80%, by weight of the cleaning composition, of a surfactant system.
T. A cleaning composition according to any of paragraphs A-S, wherein the surfactant system comprises an anionic surfactant, preferably selected from the group consisting of alkyl sulfate, alkyl alkoxy sulfate, alkyl benzene sulfonate, paraffin sulfonate, and mixtures thereof.
U. A method of cleaning a surface, preferably a textile, comprising mixing the cleaning composition according to any of paragraphs A-T with water to form an aqueous liquor and contacting a surface, preferably a textile, with the aqueous liquor in a laundering step.
V. The use of a tannin in a cleaning composition to enhance the malodor-reducing benefits of a nuclease enzyme.
UV-Spectroscopy is used to determine the concentration of tannins in a liquid test composition, or in a solid or unit dose test composition, or in the wash water liquor of a test composition. One suitable UV-spectrophotometer instrument is the model UV1800, manufactured by Shimadzu Corporation in Kyoto, Japan. Samples of the test composition material are prepared in order to generate a liquid test sample which is the solution that is measured spectroscopically. The UV-spectroscopy analysis is conducted in transmission mode, with an optical path length of 0.4 cm, and the absorbance measured at a wavelength of 280 nm. Two standard reference materials of known tannins are prepared in dilution series in order to create two internal-spike calibration curves for determining tannin concentration. These two standard reference material tannins are: tannic acid and (−)-epigallocatechin gallate, (available as catalogue numbers 16201 and 93894, respectively, from Sigma Aldrich Co. LLC in St. Louis, Mo., USA).
Samples of solid or unit dose test compositions are first dissolved in a known mass of deionized water that is sufficient to fully dissolve the solid composition at 25° C. Samples of solid or unit dose test compositions are initially dissolved in an equal mass of deionized water, to create a 50% (wt/wt) solution. Agitation and heating to a temperature of 25° C. may be required to achieve dissolution within 30 mins. If additional water is required to fully dissolve the solid composition, then one or more additional masses of deionized water are added, with each sequential addition having the same mass as the first addition of water. A minimum number of water additions are used in order to achieve full dissolution of the composition. The resultant solution is the liquid test sample to be analysed for the solid or unit dose composition being tested.
Samples of liquid test compositions are diluted with an equal volume of deionized water to create a 50% (v/v) solution. The resultant solution is the liquid test sample to be analysed for the fluid composition being tested.
Samples of wash water liquor are generated according to the procedure below.
Tannin solvent is prepared by making a 1:1:1 solution water:ethanol:ethylene glycol. A glass jar is tared on a scale and 25 mg of water is added to the jar. The scale is then re-zeroed and 25 g of ethanol is added to the jar containing water. The scale is re-zeroed and 25 g of ethylene glycol is added to the water:ethanol mixture. The jar is then sealed with a lid and shaken to mix.
Tannin working solution is prepared by making a 2% mixture of tannin material in Tannin Solvent. A glass jar is tared on a scale and 0.4 g of tannin extract is added to the jar. Next, Tannin Solvent is added to the jar until the measured weight reaches 20 g. The jar is sealed with a lid and placed in a ultrasonicator where the mixture is sonicated for 30 minutes.
A mixture of liquid laundry detergent containing 0.2% Tannin Working Solution is prepared by taring a glass jar on a scale and adding 0.2 g of Tannin Working Solution to the jar. Liquid Laundry Detergent is then added to the jar until the measured weight reaches 100 g.
Prepare a mixture of water containing 0.095% liquid laundry detergent comprising tannin. A pail is tared on a scale and 7.2 g of liquid laundry detergent+tannin is added to the pail. The scale is then re-zeroed and 7.57 kg of 32° C., 7 gpg water is added to the pail. The Wash liquor is then blended to mix by using and overhead mixer with a pitched impeller to stir.
The resultant solution is the liquid test sample to be analysed to determine tannin concentration in the wash water liquor of the composition being tested.
The two internal calibration curves are created by generating two separate tannin-spiked sample solutions, one from each of the two standard reference tannins. Each tannin-spiked sample solution comprises a final concentration of 1% standard reference tannin (wt/v), in an aliquot of liquid test sample prepared according to the instructions given herein. Each of the resulting two tannin-spiked sample solutions is then subsequently used to create a dilution series.
A dilution series is created from each prepared liquid test sample or tannin-spiked sample solution. Each dilution series is prepared with buffer and deionized water to yield a series of five dilution solutions each having a different final concentration. The final concentration of liquid test solution or tannin-spiked sample solution (as appropriate) in each of the five solutions in the dilution series is as follows: 100 ppm; 50 ppm; 25 ppm; 10 ppm; and 0 ppm. Each solution in the dilution series has a final volume of 1 mL and comprises 990 uL of 20 mM MOPS (3-(N-morpholino)propanesulfonic acid) buffer at pH 7.1. The remaining volumes of deionized water, and either liquid test sample or tannin stock solution, are adjusted as needed in order to achieve the five specified concentrations.
Each material being tested yields a total of 15 fluids, resulting from 5 dilutions in 3 series (i.e., liquid test sample; the first tannin-spiked reference sample; and the second tannin-spiked reference sample). Each of the 15 fluids is measured in the UV-spectrophotometer and the absorbance value at 280 nm is measured three times. The average of the three measurements is the absorbance value recorded for that fluid.
The measured absorbance values from the three series are plotted on a graph and linear line fit to each of the three data series. The slopes of the lines from the two tannin-spiked reference samples are then compared to the slope of the line from the liquid test sample. The tannin-spike reference sample having a slope most similar to the liquid test sample slope is identified and selected for further analysis. The least similar slope is discarded. Of the most similar tannin-spiked reference line, if the range of absorbance values does not overlap with the range of absorbance values of the liquid test sample, then an additional calibration dilution series is prepared and measured. This new dilution series is prepared at modified concentrations such that the new linear calibration curve overlaps with the linear line fit through the absorbance values from the liquid test sample series. The point at which the two lines intersect indicates the concentration of tannin in the liquid test sample, and is used to back calculate the concentration of tannin present in the original test material.
The following are illustrative examples of cleaning compositions according to the present disclosure and are not intended to be limiting.
Based on total cleaning and/or treatment composition weight. Enzyme levels are reported as raw material.
These examples provide various formulations for unit dose laundry detergents. Compositions 8 to 12 comprise a single unit dose compartment. The film used to encapsulate the compositions is polyvinyl-alcohol-based film.
Based on total cleaning and/or treatment composition weight. Enzyme levels are reported as raw material.
In the following examples the unit dose has three compartments, but similar compositions can be made with two, four or five compartments. The film used to encapsulate the compartments is polyvinyl alcohol.
Based on total cleaning and/or treatment composition weight, enzyme levels are reported as raw material.
AE1.8S is C12-15 alkyl clhoxy (1.8) sulfate
AE3S is C12-15 alkyl ethoxy (3) sulfate
AE7 is C12-13 alcohol ethoxylate, with an average degree of ethoxylation of 7
AE8is C12-13 alcohol ethoxylate, with an average degree of ethoxylation of 8
AE9 is C12-13 alcohol ethoxylate, with an average degree of ethoxylation of 9
Amylase 1 is Stainyme®, 15 mg active/g
Amylase 2 is Natalase®, 29 mg active/g
Amylase 3 is Stainzyme Plus®, 20 mg active/g,
AS is C12-14 alkylsulfate
Cellulase 2is Celluclean™, 15.6 mg active/g
Xyloglucanase is Whitezyme®, 20 mg active/g
Chelant 1 is diethylene triamine pentaacetic acid
Chelant 2 is 1-hydroxyethane 1.1-diphosphonic acid
Chelant 3 is sodium salt of ethylenediamine-N,N′-disuccinic acid, (S,S) isomer (EDDS)
Dispersin B is a glycoside hydrolase, reported as 1000 mg active/g
DTI 1 is poly(4-vinylpyridine-1-oxide) (such as Chromabond S-403E®),
DTI 2 is poly( 1 -vinylpyrrolidone-co-1 -vinylimida/ole) (such as Sokalan HP56®).
HSAS is mid-branched alkyl sulfate as disclosed in U. S. Pat. No. 6,020,303 and U.S. Pat. No. 6,060,443
LAS is linear alkylbenzenesulfonate having an average aliphatic carbon chain length C9-C15 (HLAS is acid form).
Lipase is Lipex®, 18 mg active/g
Mannanase is Mannaway®, 25 mg active/g
Nuclease is a Phosphodiesterase SEQ ID NO 1, reported as 1000 mg active/g
Optical Brightener 1 is disodium 4,4′-bix{[4-anilino-6-morpholino-s-triazin-2-yl]-amino}-2,2′-stilbenedisulfonate
Optical Brightener 2 is disodium 4,4′-bis-(2-sulfostyryl)biphenyl (sodium salt)
Perfume encapsulate is a core-shell melamine formaldehyde perfume microcapsules.
Photobleach is a sulfonated zinc phthalocyanine
Polishing enzyme is Para-nitrobenzylesterase, reported as 1000 mg active/g
Polymer 1 is bis((C2H5O)(C2H4O)n)(CH3)-N+-CxH2x-N+-(CH3)-bis ((C2H5O)(C2H5O)n), wherein n=20-30,X=3 to 8 or sulphated or sulfonated variants thereof
Polymer 2 is ethoxylated (EO15 ) tetraethylene pentamine
Polymer 3 is ethoxylated polyethylenimine
Polymer 4 is ethoxylated hexamethylene diamine
Polymer 5 is Acusol 305, provided by Rohm&Haas
Polymer 6 is a polyethylene glycol polymer grafted with vinyl acetate side chains, provided by BASF.
Protease is Purafect Prime®, 40.6 mg active/g Protease 2 is Savinase®, 32.89 mg active/g
Protease 3 is Purafect®, 84 mg active/g
Quaternary ammonium is C12-14 Dimethylhydroxyethyl ammonium chloride
S-ACMC is Reactive Blue 19 Azo-CM Cellulose provided by Megazyme
Soil release agent is Repel-o-tex®SF2
Tannin is as described in the present disclosure
Violet DD is a thiophene azo dye provided by Milliken
Water insoluble plant fiber Water insoluble plant fiber in accordance with the invention, for example Herbacel AQ+Type N, supplied by Herbafood Ingredients GmbH, Werder, Germany.
The dimensions and values disclosed herein are not to be understood as being strictly limited to the exact numerical values recited. Instead, unless otherwise specified, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as “40 mm” is intended to mean “about 40 mm.”
Every document cited herein, including any cross referenced or related patent or application and any patent application or patent to which this application claims priority or benefit thereof, is hereby incorporated herein by reference in its entirety unless expressly excluded or otherwise limited. The citation of any document is not an admission that it is prior art with respect to any invention disclosed or claimed herein or that it alone, or in any combination with any other reference or references, teaches, suggests or discloses any such invention. Further, to the extent that any meaning or definition of a term in this document conflicts with any meaning or definition of the same term in a document incorporated by reference, the meaning or definition assigned to that term in this document shall govern.
While particular embodiments of the present invention have been illustrated and described, it would be obvious to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention. It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this invention.
| Number | Date | Country | |
|---|---|---|---|
| 62347672 | Jun 2016 | US |
