Patent Application
20240285132
The present disclosure is generally directed to packaged consumer products with a preservative generation system. More particularly, the packaged consumer product may include a first product element that is in a solid phase, a second product element that is in a liquid phase, and a preservative generation system designed to preserve the first and second product elements prior to use.
Packaged consumer products are often made up of multiple elements which are present in a variety of forms. For example, packaged consumer products such as wet wipes, wet mopping cloths, surface cleansing wipes, and the like, contain both solid-form elements—the cloth/wipe substrate—as well as a liquid-form element—the lotion or cleaning liquid. Such packaged consumer products are made for a variety of uses, including cleaning surfaces, such as household surfaces and the skin of a user.
Packaged consumer products containing a liquid product element typically have a high water activity that may allow for bacterial and mold growth. In order to maintain cleaning efficacy, and because of the intimate contact many packaged consumer products have with their users—such as wet wipes and make-up removal wipes, for example—bacterial and mold growth must be managed in these products. Bacterial and mold growth is typically managed in these types of packaged consumer products by the addition of chemical preservatives to the liquid-form element.
Chemical preservatives can be harsh on surfaces and can irritate the skin of users. It would be desirable to develop a preservative system for packaged consumer products that effectively manages bacteria and mold growth in and/or on the various elements of the packaged consumer product, while transferring very little to no chemical preservatives to the product while in use.
To solve the problem advanced above, the present disclosure provides, in part, a packaged consumer product comprising a first product element, a second product element, and a preservative generation system. The first product element may be a solid phase material, such as a nonwoven substrate. The second product element may be a liquid phase material, such as a lotion. The first product element and second product element may be fully enclosed by packaging material forming an outer package and disposed within an interior package space. A preservative generation system may be disposed within the interior package space. The preservative generation system may comprise a first pouch comprising a first semi-permeable material and a first reactant. The preservative generation system may generate a preservative when the first reactant is contacted by an activator, such as water and/or water vapor. The preservative may be chlorine dioxide.
The preservative may reduce, inhibit, and/or eliminate bacteria, mold, and/or yeast in both the solid-phase first product element and the second liquid-phase product element. The preservative also leaves behind very little residual chlorate/chlorite species on or in the first product element and the second product element. The packaged consumer product with preservative generation system of the present disclosure may enable a packaged consumer product having both a solid and liquid phase element to remain safe and efficacious over a shelf life without the inclusion of chemical preservatives added to either phase of the product.
The above-mentioned and other features and advantages of the present disclosure, and the manner of attaining them, will become more apparent and the disclosure itself will be better understood by reference to the following description of example forms of the disclosure taken in conjunction with the accompanying drawings, wherein:
Various non-limiting forms of the present disclosure will now be described to provide an overall understanding of the principles of the structure, function, manufacture, and use of the packaged consumer product with preservative generation system disclosed herein. One or more examples of these non-limiting forms are illustrated in the accompanying drawings. Those of ordinary skill in the art will understand that the packaged consumer product with preservative generation system described herein and illustrated in the accompanying drawings are non-limiting example forms. The features illustrated or described in connection with one non-limiting form may be combined with the features of other non-limiting forms. Such modifications and variations are intended to be included within the scope of the present disclosure.
The packaging material 13 may be formed of a film that is flow-wrapped about a consumer product or plurality of consumer products 100. The selected film material may be unwound from a stock roll and passed in a longitudinal/machine direction into a flow-wrap machine, along with individual consumer products or pluralities of consumer products 100. The flow-wrap machine may be configured so as to wrap the film stock longitudinally about each incoming consumer product or plurality of consumer products 100, join the film along its longitudinal edges to form a sealed fin seam 15 and a sleeve-like structure about the stack, tuck the film at the ends to form tucks 11, and then crimp, seal, and cut the film between each consumer product or plurality of consumer products 100, forming individual packages 14 having end seams 12.
The package 14 may also be provided with an opening feature 20. The opening feature 20 may be a relatively rigid recloseable fitment. The fitment 20 may have a ring portion 21 and a lid 23, connected to the ring portion 21 by a hinge 22. The ring portion 21 may have an opening 24 therethrough to provide access into the interior package space 102, surrounded by an escutcheon portion 26 that is adhered substantially along and about its perimeter to the packaging material 13 so as to provide a substantial moisture-proof seal between the escutcheon and the packaging material. A lid 23 may have an open position and a closed position. One or both of lid 23 and ring portion 21 may be provided with lip, rim, groove, gasket etc. cooperating sealing features 25 such that, when the lid is in the closed position, the cooperating sealing features 25 of lid 23 and/or ring portion 21 are in close proximity or effective contact with the other of lid 23 and/or ring portion 21 about the perimeter of the lid, so as to retard the passage of moisture between the lid 23 and the ring portion 21. One example may be a gasket (not specifically shown) formed of a material that is relatively softer than the material forming the fitment that may be provided about the opening 24 and disposed on either the lid 23 or ring portion 24, to improve the moisture passage retarding function. The fitment including the ring portion 21, hinge 22 and lid 23 may be formed of a polymer such as a polyolefin, for example, polyethylene. Referring to
The packaged consumer product of the present disclosure may comprise a first product element, wherein the first product element is a solid phase material. The solid phase material may be a substrate formed from a web of fibers. The substrate may be homogenous or may be layered. If layered, the substrate may comprise at least two, at least three, at least four, or at least five layers. Referring to
The nonwoven web materials may comprise, consist essentially of, or consist entirely of cellulosic fibers. Non-limiting examples of cellulosic fibers include wood pulp, typical northern softwood Kraft, typical southern softwood Kraft, typical CTMP, typical deinked, corn pulp, acacia, eucalyptus, aspen, reed pulp, birch, maple, radiata pine, albardine, esparto, wheat, rice, corn, sugar cane, papyrus, jute, reed, sabia, raphia, bamboo, sidal, kenaf, abaca, cotton, flax, hemp, jute, modified natural cellulosic fibers such as, for example, rayon (including viscose, lyocell, MODAL (a product of Lenzing AG, Lenzing, Austria) and cuprammonium rayon), and combinations thereof. Cellulosic fibers may be consumer-preferred to appeal to a desire for natural and/or environmentally friendly products. The cellulosic fibers may be treated or otherwise modified mechanically and/or chemically to provide desired characteristics, or may be in a form that is generally similar to the form in which they may be found in nature. Mechanical and/or chemical manipulation of natural fibers does not exclude them from what are considered natural fibers with respect to the present disclosure.
The nonwoven web materials may comprise, consist essentially of, or consist entirely of synthetic fibers. Non-limiting examples of synthetic fibers include polyesters (e.g., polyethylene terephthalate), polyolefins, polypropylenes, polyethylenes, polyethers, polyamides, polyesteramides, polyvinylalcohols, polyhydroxyalkanoates, polysaccharides, and combinations thereof. The polyester may comprise less than 100 ppm antimony, or the polyester may be devoid of antimony. Further, the synthetic fibers may be a single component (i.e., single synthetic material or mixture makes up entire fiber), bi-component (i.e., the fiber is divided into regions, the regions including two or more different synthetic materials or mixtures thereof and may include co-extruded fibers and core and sheath fibers) and combinations thereof. Bi-component fibers may be used as a component fiber of the structure, and/or they may be present to act as a binder for the other fibers present in the fibrous structure. Any or all of the synthetic fibers may be treated before, during, or after manufacture to change any desired properties of the fibers. The substrate may comprise hydrophilic fibers, hydrophobic fibers, or a combination thereof.
The wet wipe substrate may comprise between about 30% and about 100%, between about 50% and about 100%, or between about 65% and 100%, by weight of the substrate of cellulosic fibers, specifically reciting each 1% increment within these ranges and every range formed therein or thereby. The substrate may comprise about 50% cellulosic fibers and about 50% synthetic fibers, by weight of the substrate. The substrate may comprise about 30% cellulosic fibers and about 70% synthetic fibers, by weight of the substrate. The substrate may comprise about 100% cellulosic fibers, such as a mixture of about 50% viscose and about 50% lyocell, by weight of the substrate. The substrate may comprise about 100% cellulosic fibers, such as a mixture of about 85% lyocell and about 15% cotton, by weight of the substrate. The substrate may comprise about 100% cellulosic fibers, wherein the cellulosic fibers comprise between about 10% to about 70% viscose, by weight of the substrate. The substrate may be devoid of polyesters, polyamides, and/or polyolefins.
It may be desirable that the substrate, or at least one or more layers of the substrate, comprises a particular combinations of fibers to provide desired characteristics. For example, it may be desirable to have fibers of certain lengths, widths, coarseness, or other characteristics combined in certain layers, or separate from each other in distinct layers. The fibers may be of virtually any size and may have an average length from about 1 mm to about 60 mm, specifically reciting each 1 mm increment within the range and every range formed therein. Average fiber length refers to the length of the individual fibers if straightened out. The fibers may have an average fiber width of greater than about 5 micrometers. The fibers may have an average fiber width of from about 5 micrometers to about 50 micrometers, specifically reciting each 1 micrometer increment within the range and every range formed therein. The fibers may have a coarseness of greater than about 5 mg/100 m. The fibers may have a coarseness of from about 5 mg/100 m to about 75 mg/100 m, specifically reciting each 1 mg/100 m increment within the range and every range formed therein.
The fibers may be circular in cross-section, dog-bone shape, delta (i.e., triangular cross section), trilobal, ribbon, or other shapes typically produced as staple fibers. Likewise, the fibers may be conjugate fibers such as bicomponent fibers. The fibers may be crimped and may have a finish, such as a lubricant, applied.
The materials comprising the substrate may be treated to improve the softness and texture thereof. The substrate may be subjected to various treatments, such as physical treatment, hydro-molding, hydro-embossing, hydro-entangling, ring rolling, as described in U.S. Pat. No. 5,143,679; structural elongation, as described in U.S. Pat. No. 5,518,801; consolidation, as described in U.S. Pat. Nos. 5,914,084; 6,114,263; 6,129,801 and 6,383,431; stretch aperturing, as described in U.S. Pat. Nos. 5,628,097; 5,658,639; and 5,916,661; differential elongation, as described in U.S. Pat. No. 7,037,569, other solid state formation technologies as described in U.S. Pat. No. 7,553,532 and U.S. Pat. No. 7,410,683; zone activation, and the like; chemical treatment, such as rendering part or all of the substrate hydrophobic and/or hydrophilic, and the like; thermal treatment, such as thermal-embossing, softening of fibers by heating, thermal bonding and the like; and combinations thereof.
Without wishing to be bound by theory, it is believed that a textured substrate may further enable the ease of removal of soils by improving the ability to grip or otherwise lift the soils from the surface during cleansing. Any one of a number of texture elements may be useful in improving the ability to grip or otherwise lift the soil from the surface during cleansing, such as continuous hydro-molded elements, hollow molded element, solid molded elements, circles, squares, rectangles, ovals, ellipses, irregular circles, swirls, curly cues, cross hatches, pebbles, lined circles, linked irregular circles, half circles, wavy lines, bubble lines, puzzles, leaves, outlined leaves, plates, connected circles, changing curves, dots, honeycombs, and the like, and combinations thereof. The texture elements may be hollow elements. The texture elements may be connected to each other. The texture elements may overlap each other. The texture elements may form a pattern. Referring to
The substrate may have a basis weight between about 15 grams/m2 (gsm) and about 100 gsm, between about 30 gsm and about 95 gsm, between about 40 gsm and about 85 gsm, between about 45 gsm and about 75 gsm, or between about 52 gsm and about 65 gsm, specifically reciting every 1 gsm increment within the ranges and every range formed therein or thereby. Exemplary nonwoven substrates are described in U.S. Patent Application Publication 2012/066852 and U.S. Patent Application Publication 2011/244199.
The surface of the substrate may be essentially flat. The surface of the substrate may optionally contain raised and/or lowered portions. The raised and/or lowered portions may be in the form of logos, indicia, trademarks, geometric patterns, and/or images of the surfaces that the substrate is intended to clean (i.e., infant's body, face, etc.). The raised and/or lowered portions may be randomly arranged on the surface of the substrate or be in a repetitive pattern.
The substrate may be biodegradable. For example, the substrate may comprise a biodegradable material such as a polyesteramide or a high wet strength cellulose. The substrate may be dispersible in water. The substrate may be dispersible in water with moderate agitation, such as the agitation achieved during the flush cycle of a typical toilet.
The substrates described herein may have different properties on different sides of the substrate. For example, one side of the substrate may have good cleaning performance and the other side of the substrate may have good tactile sensation to the user. In another form, one side of the substrate may have an increased cleaning performance as compared to the other side of the substrate.
Non-limiting examples of processes for making webs of fibers of the substrate described herein include known wet-laid papermaking processes, air-laid papermaking processes including carded and/or spunlaced processes. Such processes typically include steps of preparing a fiber composition in the form of a suspension in a medium, either wet, more specifically aqueous medium, or dry, more specifically gaseous, i.e., with air as a medium. The aqueous medium used for wet-laid processes is oftentimes referred to as a fiber slurry. The fibrous slurry is then used to deposit a plurality of fibers onto a forming wire or belt such that an embryonic web of fibers is formed, after which drying and/or bonding the fibers together results in a web of fibers. Further processing the web of fibers may be carried out such that a finished web of fibers is formed. For example, in typical papermaking processes, the finished web of fibers is the fibrous structure that is wound on the reel at the end of papermaking, and may subsequently be converted into a finished product, e.g., a wet wipe substrate.
The web of fibers of the substrates described herein may be a co-formed fibrous structure. “Co-formed fibrous structure,” as used herein, means that the fibrous structure comprises a mixture of at least two different materials, wherein at least one of the materials comprises a filament, such as a polypropylene filament, and at least one other material different from the first material, comprises a solid additive, such as a fiber and/or a particulate. In one example, a co-formed fibrous structure comprises solid additives-such as fibers (for example, wood pulp fibers) and/or absorbent gel materials and/or filler particles and/or particulate spot bonding powders and/or clays- and filaments-such as polypropylene filaments. “Solid additive” as used herein means a fiber and/or a particulate. “Particulate” as used herein means a granular substance or powder. “Fiber” and/or “Filament” as used herein means an elongate particulate having an apparent length greatly exceeding its apparent width, i.e., a length to diameter ratio of at least about 10. For purposes of the present disclosure, a “fiber” is an elongate particulate as described above that exhibits a length of less than 5.08 cm (2 in.) and a “filament” is an elongate particulate as described above that exhibits a length of greater than or equal to 5.08 cm (2 in.).
Referring to
The substrate described herein may be subjected to any post-processing operations such as embossing operations, printing operations, tuft-generating operations, thermal bonding operations, ultrasonic bonding operations, perforating operations, surface treatment operations such as application of lotions, silicones and/or other materials, folding, and/or combinations thereof.
The packaged consumer product of the present disclosure may comprise a second product element, wherein the second product element is a liquid phase material. The second product element, otherwise referred to herein as a lotion, may comprise various chemical constituents that carry out functions such as cleaning and buffering, as will be discussed in detail herein. The second product element, or lotion, may comprise from about 96% water to about 100% water, from about 97.5% water to about 100% water, or from about 98.2% water to about 100% water, by weight of the lotion, specifically reciting every 0.1% increment within these ranges and any ranges formed therein or thereby, according to the Water Content Method disclosed herein. A lotion comprising water within the above-specified ranges may be gentle on the skin, especially when the packaged consumer product is employed to cleanse delicate areas of the body.
The lotions of the present disclosure may comprise a pH buffering system. The pH buffering system may be present at from about 0.1% to about 1%, from about 0.25% to about 1%, from about 0.375% to about 0.85%, or from about 0.45% to about 0.75%, by weight of the lotion, specifically reciting every 0.01% increment within these ranges and any ranges formed therein or thereby. The pH buffering system may be a citrate-citric acid buffering system at a pH of less than 5. The pH buffering system may be a citrate-citric acid buffering system at a pH of less than 4. The pH buffering system may be a sodium citrate-citric acid buffering system at a pH of less than 5. The pH buffering system may be a sodium citrate-citric acid buffering system at a pH of less than 4. The pH buffering system may comprise sodium citrate dihydrate and citric acid anhydrous. The lotions of the present disclosure may have a pH from about 3.4 to about 6, from about 3.5 to about 5, from about 3.6 to about 4.8, from about 3.6 to about 4.4, from about 3.6 to about 4.2, or from about 3.8 to about 4.2, specifically reciting every 0.1% increment within these ranges and any ranges formed therein or thereby.
The Equivalence Value of a lotion may be an indication of the lotion's resistance to an increase in pH. A lotion having a higher Equivalence Value may be desired in the context of a wet wipe because it may help to protect a baby's skin against irritation caused by feces and urine residue that remains after cleaning. The proteases in feces that may damage the skin can start to become active around pH 5 and can reach peak activity between pH 7 to 8. Urea in urine may be converted to ammonia by bacteria on the skin, elevating the pH and making the fecal proteases more active. By depositing a lotion with a higher Equivalence Value on the skin, an acidic buffer may be created that resists the rise in pH that may otherwise occur over time and/or when trace amounts of feces and urine are present. By resisting the rise in pH, a lotion with a higher Equivalence Value may protect the skin from damage caused by fecal proteases and reduce the likelihood that rash will occur between diaper changes. The lotions of the present disclosure may have an Equivalence Value from about 25 to about 100, from about 30 to about 95, from about 55 to about 90, from about 65 to about 90, from about 60 to about 80, from about 62 to about 75, or from about 65 to about 70, specifically reciting every 1.0 unit increment within these ranges and any ranges formed therein or thereby, according to the Buffering Capacity Test Method described herein.
The second product element may be devoid, or free, of chemical preservatives. Chemical preservatives include benzoic acid and/or a salt thereof, succinic acid and/or a salt thereof, phytic acid and/or a salt thereof, and combinations thereof. It is believed that a second product element, such as a lotion, that is devoid of chemical preservatives may exhibit a low sting potential due to the absence of the chemical preservatives. Lotions that exhibit a low sting potential are consumer preferred because they are often experienced as being more soothing, especially to delicate and sensitive skin.
The second product element may be disposed within the interior package space in an amount of between about 1.0 g and about 8.0 g per gram of the first product element.
In a form, the second product element may be disposed within the interior package space of the packaged consumer product upon initial manufacture of the packaged consumer product. In other words, the manufacturer of the packaged consumer product may combine the first product element and the second product element within the interior package space prior to sealing the package.
In another form, the packaged consumer product may be manufactured and sold devoid of the second product element. The second product element may be added by a consumer to a package containing the first product element. Upon addition of the second product element by a consumer, for example, the resulting packaged consumer product containing a first product element and a second product element falls within the packaged consumer product contemplated by this disclosure.
The packaged consumer product of the present disclosure comprises a preservative generation system. The preservative generation system may be enclosed by the packaging material and disposed within the interior package space. The preservative generation system is configured to generate a preservative within the interior package space. The preservative may preserve, or assist in the preservation of, the first product element, the second product element, and/or the packaged consumer product as a whole. Exemplary preservative generation systems are described in U.S. Pat. Nos. 6,607,696; 6,602,466; and 7,922,984, each of which is herein incorporated by reference.
Referring now to
The first pouch 90 comprising or formed of a perforated film may have a water vapor transmission rate (WVTR) between about 50 g/m2/24 hours and about 1,000 g/m2/24 hours, between about 200 g/m2/24 hours and about 800 g/m2/24 hours, or between about 400 g/m2/24 hours and about 700 g/m2/24 hours, specifically reciting every 1 g/m2/24 hours increment within these ranges and any ranges formed therein or thereby. The perforated film may be hydrophobic.
Perforated films suitable for the construction of the envelope may include, but are not limited to, polymeric material, e.g., Cryovac® perforated films available from Sealed Air Corporation (Duncan, S.C.). One such film is a hydrophobic polypropylene copolymer film sold under the designation SM700 by Sealed Air Corporation and has 330 holes per square inch having a diameter of 0.4 mm, a 6.4% perforated area, a thickness of about 20 microns, and a water vapor transmission rate of 700 g/m 2/24 hrs. Another suitable film is a hydrophobic polypropylene copolymer film sold under the designation SM60 by Sealed Air Corporation and has 8 holes per square inch having a diameter of 0.4 mm, a 0.2% perforated area and a water vapor transmission rate of 65 g/m 2/24 hrs. The first pouch 90 may comprise or be formed of hydrophobic, liquid water permeable material, such as polyethylene or polypropylene. These materials preferably are between about 1 mil (0.0254 mm) and about 10 mils (0.254 mm) thick with a water intrusion pressure of about 30 millibars or 30 millibars or less. Hydrophobic materials may include, but are not limited to, non-woven polyethylene such as the TYVEK® non-woven polyethylenes from DuPont Company (Wilmington, Del.), e.g., the TYVEK® 1025D non-woven polyethylene which has an intrusion pressure of less than 30 millibars.
The first pouch 90 may comprise, or be formed from, a hydrophilic membrane having a pore size between about 0.01 μm and about 50 μm, between about 0.05 μm and 40 μm, or between about 0.1 μm and about 30 μm. The membrane may be the microporous ultra high density polyethylene membrane sold under the trade designation MPLC from Millipore (Bedford, Mass.), and the microporous Nylon 6,6 membrane sold under the designation 045ZY by Cuno
Incorporated (Meriden, Conn.). Selective transmission films are films that are neither perforated nor porous, but instead transfer gases through the polymer structure of the film. Selective transmission films are multilayered or mixed polymer materials, where the layers and the polymers are chosen for controlled transmission of gases such as carbon dioxide and oxygen. Selective transmission films may be beneficial in dry applications because they allow gas to diffuse out of the first pouch, while retaining an initiating agent and reactant. Moreover, the selective transmission film may increase the stability of the preservative generation system prior to its use because it does not easily allow ambient water and/or water vapor to diffuse into the first pouch, which could prematurely initiate reactants.
The first pouch 90 comprises a reactant 92 disposed within an interior of the first pouch, wherein the reactant is configured to generate a preservative upon exposure to water and/or water vapor. The reactant 92 may be a compound or a mixture of compounds configured to generate the preservative. The preservative may be in a gas phase. Generation of a gas, e.g., by acid activation, is well known in the art. For example, chlorine dioxide (ClO2) may be generated from sodium chlorite and an acid, such as citric acid, in the presence of moisture. Alternatively, chlorine dioxide can be produced by the reduction of a chlorate, e.g., sodium chlorate or potassium chlorate, in the presence of an acid, e.g., oxalic acid. The reactant may comprise at least one of: sodium chlorite, potassium chlorite, citric acid, and combinations thereof.
Referring to
Individual packages of the packaged consumer product 10 may be formed by sealing the first product element, second product element, and preservative generation system within the interior package space 102 formed by the packaging material 13. Alternatively, the second product element may be added to a package containing the first product element, for example by a consumer, to form the packaged consumer product of the present disclosure. The preservative generation system, and more specifically the first pouch 90, may come into contact with water and/or water vapor upon assembly of the packaged consumer product 10, either by a manufacturer or a consumer, where the preservative generation system comes into contact with the liquid phase second product element, which may be a lotion. The water and/or water vapor from the second product element may cross the semi-permeable material of the first pouch 90, which may form at least a portion of the second side 93 of the first pouch 90, during or shortly after assembly of the packaged consumer product 10 and may come into contact with the reactant 92, initiating a preservative generation reaction with the reactant 92. The reaction may form a preservative or preservatives. The preservative or preservatives may be in the form of a gas. The preservative may permeate the semi-permeable material and enter the interior package space 102. The packaging material 13 defining and surrounding the interior package space 102 may be impermeable to the preservative(s), and may hold the preservative(s) within the interior package space 102 until the package is opened.
The preservative may be contained within the interior package space 102 and may be present in a sufficient amount to reduce, inhibit, and/or eliminate bacteria, yeast, and/or mold in and/or on consumer product elements within the interior package space 102 while the package is sealed (prior to opening). The preservative may be chlorine dioxide. The interior package space 102 of a sealed package may comprise a gaseous phase. The gaseous phase may comprise between about 0.25 ppm and about 5 ppm chlorine dioxide, between about 0.3 ppm and about 4.5 ppm chlorine dioxide, between about 0.35 ppm and about 3.75 ppm chlorine dioxide, or between about 0.45 and about 4.25 ppm chlorine dioxide, specifically reciting ever 0.01 ppm increment within these ranges and any ranges formed therein or thereby.
The inventors have found that the level of chlorine dioxide generated by the preservative generation system is capable of reducing, inhibiting, and/or eliminating bacteria, mold, and/or yeast while leaving very little residual chlorate/chlorite species on and/or in either the first product element or the second product element. When tested upon opening of the packaged consumer product 10 of the present disclosure, the first product element may comprise less than 1000 μg/ml chlorate and/or chlorite species, less than 800 μg/ml chlorate and/or chlorite species, less than 650 μg/ml chlorate and/or chlorite species, less than 500 μg/ml chlorate and/or chlorite species, or less than 375 μg/ml chlorate and/or chlorite species. When tested upon opening of the packaged consumer product 10 of the present disclosure, the second product element may comprise less than 1000 μg/ml chlorate and/or chlorite species, less than 800 μg/ml chlorate and/or chlorite species, less than 650 μg/ml chlorate and/or chlorite species, less than 500 μg/ml chlorate and/or chlorite species, or less than 375 μg/ml chlorate and/or chlorite species.
Referring to
The second semi-permeable material 112 of the second pouch 110 may be configured to be shielded from contact with water, water vapor, and/or the liquid phase second product element when the outer package 14 is in a first, unopened configuration-meaning post-manufacture but pre-consumer use, for example as shown in
Referring to
The first pouch 90 and/or the second pouch 110 may be sealed, such as at pouch seams 94, in order that the reactant 92, 104 remains within the interior space of the respective pouch and is substantially or completely prevented from entering into the interior package space.
In a form, the first pouch 90 and/or the second pouch 110 may be formed by a portion of the packaging material forming a first side of the pouch, and a semi-permeable material forming a portion of a second side of the pouch. Reactant may be disposed within an interior space between the first side and second side. The reactant may be printed, slot-coated, or otherwise deposited on the packaging material before the semi-permeable material is joined to the packaging material to form the first and/or second pouch.
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 disclosure 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 present disclosure. It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this present disclosure.
This application claims the benefit of U.S. Provisional Application No. 63/447,674, filed Feb. 23, 2023, which is incorporated by reference herein in its entirety.
| Number | Date | Country | |
|---|---|---|---|
| 63447674 | Feb 2023 | US |
