Patent Application
20220333278
The present invention belongs to the field of textile technology, and particularly relates to an antibacterial textile and a preparation method thereof.
Household textiles, such as beddings and leisurewear, and bathroom textiles, such as towel products, are used very frequently and, thus, easily breed bacteria and cause unpleasant odors. Unfortunately, commercially-available antibacterial textiles hardly satisfy the demands for plump texture, soft hand feel, fluffy property, moisture absorption, and long-lasting antibacterial effect.
Generally, the method for obtaining antibacterial properties of fabrics includes three post-finishing ways. (1) An antibacterial finishing agent is bonded on the fabrics according to a certain process. This hardly achieves the indicators of antibacterial properties, hand feel, and endurance quality simultaneously. (2) An antibacterial fiber is added to obtain antibacterial yarns for weaving and then obtaining fabrics. The shortcoming is that the added antibacterial fibers, such as bamboo, flax, and chitin, have poor antibacterial properties and thus, need to be added to the fabrics in large amounts, up to at least 30% above, thereby greatly influencing the comfort and hand feel of the textiles. (3) Surface metal sputtering, for example, a fabric plated with a silver layer on the surface thereof. The fabric surface obtained in such a way has an obvious metal texture and is unsuitable for household textiles and bathroom textiles. Therefore, it is essential to provide a textile capable of satisfying the above requirements simultaneously.
In view of the above shortcomings in the prior art, the objective of the present invention is to provide an antibacterial textile, thus solving the problems of hardly satisfying the demands for plump texture, soft hand feel, fluffy property and moisture absorption, and durable antibacterial effect in the existing household textiles and bathroom textiles.
To achieve the above objective and other relevant objectives, the present invention provides an antibacterial textile. The antibacterial textile is made of an antibacterial fiber; the antibacterial fiber is treated by an antibacterial treatment fluid; and the antibacterial treatment fluid includes a polyquaternary ammonium salt (PQAS), an aloe extract, alcohol, a humectant and deionized water.sss
The antibacterial fiber includes one or a combination of more of antibacterial polyquaternary ammonium salt/aloe fiber, vinyl monomer grafting modified-antibacterial fiber and Lysimachia christinae Hance fiber.
As mentioned above, the present invention provides an antibacterial textile; the antibacterial treatment fluid includes an aloe extract and a polyquaternary ammonium salt. The aloe extract is a kind of natural anti-acne and anti-inflammatory active ingredient, and has good antibacterial effects in the presence of polyquaternary ammonium salts. The antibacterial treatment fluid may be used for the antibacterial treatment of yarns or fibers, and also may be directly used as a spinning solution to spin an antibacterial PQAS/aloe fiber. When the antibacterial treatment fluid serves as a spinning solution for spinning, a sulfonate needs to be added as a surfactant to further improve the flexibility of the fiber after spinning, improve the surface hydrophilia and comfortable feeling. Carboxymethyl chitosan is added to effectively maintain the stability and spinnability of the spinning solution, and further to ensure the antibacterial property of the fiber after spinning. Polyvinyl alcohol is added to maintain the stability of the system and regulate the concentration of the spinning solution, thus being suitable for the subsequent spinning operation. Moreover, raw material ingredients provided by the present invention have extensive sources, low cost and safe and eco-friendly; and the present invention has a preparation method and is easy in operation and thus, can be widely applied in industrial production. Other features and beneficial effects can be referring to the disclosure of the claims and description disclosed in the present invention.
The present invention will be further described by the following examples. But it should be indicated that the specific material ratios, process conditions, results and the like described in the examples of the present invention are merely used to specify the present invention, but not construed as limiting the protection scope of the present invention. Moreover, any equivalent alteration or modification made according to the spirit of the present invention shall fall within the protection scope of the present invention. It should be noted that unless otherwise specified, “%” described herein refers to “part by mass”. It should be indicated that the graphical representation provided in the examples merely illustrates the basic concept of the present invention via a schematic way, namely, the graphical representation only shows the components related to the present invention, but is not drawn according to the number, shape and size of the components in practical implementation. The shape/form, quantity and proportion of each component during practical implementation may be an optional alteration, and its layout form of the component may be also more complex.
In this present invention, it should be indicated that if there are terms “center”, “upper”, “lower”, “left”, “right”, “vertical”, “horizontal”, “inner”, “outer”, and the like, the direction or position relations indicated thereby are the direction or position relations as shown on the basis of the accompanying drawings, which is only convenient for describing the present invention and simplifying the description instead of indicating or implying that the indicated device or element must have the specific position, be constructed and operated according to the specific position and thus, cannot be construed as limiting the present application. Moreover, the term “first”, “second” is only used for description and distinguishing if any, but not construed as indicating or implying relative importance.
An antibacterial textile provided by the present invention may be made or cut into, including but not limited to, bedding packages, such as bed sheet, bedding bag, pillow case, fitted sheet, mosquito net, blanket, throw pillow, and cushion cover; quilts, such as pillow and quilt; bed mattress; household supplies, such as leisurewear, underclothes/socks, curtain, fabric art, back cushion and carpet; bathroom accessories, such as towel, bath towel and hair-drying cap; the household textile may be mainly applied in families and public places, such as guesthouses, hotels, theaters, ballrooms, airplanes, trains, automobiles, ships, shopping malls, companies, institutions and many other occasions. The antiviral textile has excellent bacterium inhibition effects, for example, Staphylococcus aureus (MRSA) and Pathogenic Escherichia coli, and antiviral effects, for example, anti-coronavirus, e.g., MERS-CoV, HCoV-HKU1 and SARS-CoV.
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In the composition of the antibacterial finishing agent of the present invention, the aqueous polyurethane emulsion is present as a major adhesive component. Based on the total content of the components constituting the composition of the antibacterial finishing agent, the aqueous polyurethane emulsion has a content of 50-80 wt %, further, for example, may be 55-80 wt %, for example, 58 wt %, 60 wt % and 70 wt %.
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In the composition of the antibacterial finishing agent of the present invention, the organosilicon foaming agent is present as a foaming agent. Based on the total content of the components constituting the composition of the antibacterial finishing agent, the organosilicon foaming agent has a content of 5-10 wt %, further, for example, 5 wt %, for example, 6 wt %, and 8 wt %.
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In the composition of the antibacterial finishing agent of the present invention, based on the total content of the components constituting the composition of the antibacterial finishing agent, the charged diatomite has a content of 10-30 wt %, for example, 12 wt %, for example, 13 wt %, and 24 wt %.
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The aloe extract in the spinning solution is a kind of natural anti-acne and anti-inflammatory active ingredient, and good antibacterial effects in the presence of polyquaternary ammonium salts. The antibacterial rate may be greater than or equal to 70%; the aloe extract has a use amount of 15-30 wt %, for example, 18 wt % and 20 wt %.
As a surfactant, the sulfonate in the spinning solution may further enhance the flexibility of the spined fiber, improve the surface hydrophilia and comfortable feeling. Specifically, the sulfonate may be listed, tetraethylammonium perfluoroethane sulfonate, potassium diphenylsulfone sulfonate, potassium perfluoroalkyl sulfonate, benzenesulfonyl phenylsulfonyl potassium, sodium p-toluenesulfonate, for example, potassium diphenylsulfone sulfonate. The sulfonate has a content of 1.5-5 wt %, further, 2.0-4.2 wt %, for example, 2.3 wt % and 4.0 wt %.
Different from conventional chitosan, the carboxymethyl chitosan is an ampholytic polyelectrolyte. The carboxymethyl chitosan can effectively maintain the stability and spinnability of the spinning solution, and meanwhile, ensure the antibacterial properties of the spined fiber. The carboxymethyl chitosan has a use amount of 3-10 wt %, for example, 3 wt %. Further, the spinning solution further includes polyvinyl alcohol which is a water-soluble high-molecular polymer used for maintaining the stability of the system and regulating the concentration of the spinning solution, thus being suitable for the subsequent spinning operations. The polyvinyl alcohol has a weight-average molecular weight of 2000-200000 g/mol, further, 2000-8000 g/mol, for example, 4000 g/mol and 6000 g/mol; the polyvinyl alcohol can be more beneficial to regulating the desired concentration of the spinning solution instead of being out of control within the scope. Moreover, the present invention has good biocompatibility and may promote the repair of the inflammatory skin caused by acne. The spinning solution may further include alcohol, for example, ethanol, and the like, which may enhance the dissolving of the components polyvinyl alcohol and the chitosan to form a uniform solution; the use amount of the alcohol is 3-10 wt %, for example, 5 wt %.
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In the step S401, the carboxymethyl chitosan is an amphipathy polyelectrolyte, and has good mechanical properties and antibacterial functions in the process of blending with the cationic polyelectrolyte, chitosan quaternary ammonium salt. Then, the carboxymethyl chitosan has good shape-coating property in the process of forming a microcapsule, and is hardly broken by the subsequent alkali liquor and aqueous solution in the process of blending with the spinning solution of sodium alginate for spinning. The aqueous solution of the carboxymethyl chitosan has a mass fraction of, for example, 3-10 wt %, for example, 4 wt %, thus keeping the stability and subsequent spinnability of the solution. The mass fraction of the chitosan quaternary ammonium salt may be increased to some extent relative to the aqueous solution of the chitosan quaternary ammonium salt. But in view of cost, the mass fraction should be not too high, for example, may be, 5-20 wt %, for example, 7 wt % and 10 wt %; and the two components may be mixed in a proportion of 1:1 to obtain the mixed solution.
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The content of chitosan quaternary ammonium salt and sodium alginate in the compound antibacterial chitosan quaternary ammonium salt/seaweed fiber obtained by the above preparation process may be up to 0.5-1. The chitosan quaternary ammonium salt and sodium alginate have strong acting force therebetween, and are hardly broken in structure in repeated use process. Therefore, the compound antibacterial chitosan quaternary ammonium salt/seaweed fiber has endurable antibacterial and moisture absorption effects, keeps children's skin clear and fresh, and free of invasion of bacterium and the like.
In a further detailed embodiment disclosed herein, the fabric includes, for example, Lysimachia christinae Hance fiber, and serves as raw materials together with bamboo fiber, cotton fiber, polyester filament fiber and Lysimachia christinae Hance fiber, and a compound antibacterial sizing agent is used for sizing, thus obtaining a textile with antibacterial functions. In the preparation steps of Lysimachia christinae Hance fiber, toxicity of Lysimachia christinae Hance is removed by caustic soda dissolving and ripening treatment. The prepared Lysimachia christinae Hance fiber is non-toxic and keeps anti-inflammatory efficiency, and compounded with the compound antibacterial sizing agent; Lysimachia christinae Hance is wrapped into the antibacterial sizing agent to exert a better antibacterial effect. By testing, the antibacterial ratio of the textile fabric is still greater than 85% after being cleaned for 100 times. The antibacterial Lysimachia christinae Hance textile fabric is comfortable and breathable, has soft, delicate and smooth hand feel, a washing dimensional shrinkage lower than 2%, strong washability, and durable effects; the textile fabric is particularly suitable for the production of underwear products.
The present invention discloses a method for preparing the above antibacterial Lysimachia christinae Hance fiber textile fabric. Bamboo fiber, cotton fiber, polyester filament fiber and Lysimachia christinae Hance fiber are used and blended into a yarn, then the yarn is subjected to sectional warping to be prepared into a loom beam; a compound antibacterial sizing agent is used for sizing and airing to produce a raw Lysimachia christinae Hance fiber fabric on a shuttle loom; and the raw fabric is subjected to fabric pre-finishing, printing and dyeing treatment and post-finishing; where the compound antibacterial sizing agent includes the following parts by weight of components: 1-3 parts of copper complex of ethylenediamine, 10-30 parts of organosilicon quaternary ammonium salt, 2-5 parts of polyhexamethylene guanidine hydrochloride, 75-80 parts of ethanol and 45-60 parts of water.
The weight ratios of the bamboo fiber to the cotton fiber, the polyester filament fiber and the Lysimachia christinae Hance fiber are (15-21):(37-45):(12-18):(1-5). The compound antibacterial finishing agent has a concentration of 2-5 g/L. The organosilicon quaternary ammonium salt is a synthetic product of chloropropyl trimethoxysilane and a long-chain tertiary amine. The polyhexamethylene guanidine hydrochloride is polyhexamethylene monoguanidine hydrochloride or polyhexamethylene diguanidine hydrochloride. The Lysimachia christinae Hance fiber is prepared by the following steps of: producing cellulose pulp, and adding caustic soda to the cellulose pulp for aging, then yellowing with carbon disulfide, and adding Lysimachia christinae Hance dry powder, porous starch and xanthan gum to be mixed evenly, dissolving with caustic soda, and performing ripening, wet spinning, postprocessing and drying to obtain the finished product. Mass ratios of the cellulose pulp to the Lysimachia christinae Hance dry powder, the porous starch and the xanthan gum are 100:(25-35):(12-20):(6-10). The fabric pre-finishing step includes sizing, desizing and bleaching. A water-soluble sizing agent is used in the sizing; type and part by weight of each component in the water-soluble sizing agent are as follows: 100 parts of water, 10-20 parts of ethylene glycol, 6-10 parts of trimethyl acetate, 2-7 parts of sodium acetate, 0.5-2 parts of antimonous oxide, 6-10 parts of starch, 0.8-3 parts of penetrating agent and 4-8 parts of silicone oil. Reactive print is used in the printing and dyeing treatment; further, in the printing and dyeing treatment, a steaming temperature is 100° C-110° C., and time is 10-12 min. Furthermore, the post-finishing includes softening and shaping; a hydrophilic softening agent is taken for the softening. The antibacterial Lysimachia christinae Hance fiber textile fabric is obtained.
The present invention will be described more specifically by reference to detailed examples.
This example discloses a method for preparing an antibacterial Lysimachia christinae Hance fiber textile fabric, including the following steps:
1) preparation of Lysimachia christinae Hance fiber: cellulose pulp was prepared, and added with caustic soda for aging, then yellowed with carbon disulfide, and added with Lysimachia christinae Hance dry powder, porous starch and xanthan gum to be mixed evenly, dissolved with caustic soda, and ripened, and subjected to wet spinning, postprocessed and dried to obtain the Lysimachia christinae Hance fiber; where the weight ratios of the cellulose pulp to caustic soda and carbon disulfide were 100:9:7. Mass ratios of the cellulose pulp to the Lysimachia christinae Hance dry powder, the porous starch and the xanthan gum were 100:25:12:6.
2) Bamboo fiber, cotton fiber, polyester filament fiber and Lysimachia christinae Hance fiber were used and blended into a yarn, then the yarn was subjected to sectional warping to be prepared into a loom beam; a compound antibacterial sizing agent was used for sizing and airing to produce a raw Lysimachia christinae Hance fiber fabric on a shuttle loom; and the raw fabric was subjected to fabric pre-finishing, printing and dyeing treatment and post-finishing to obtain the antibacterial Lysimachia christinae Hance fiber textile fabric.
In the step 2), the weight ratios of the bamboo fiber to the cotton fiber, the polyester filament fiber and the Lysimachia christinae Hance fiber were 15:37:12:1.
In the step 2), the compound antibacterial finishing agent had a concentration of 3 g/L.
In the step 2), the compound antibacterial sizing agent included the following parts by weight of components: 1 part of copper complex of ethylenediamine, parts of organosilicon quaternary ammonium salt, 2 parts of polyhexamethylene guanidine hydrochloride, 75 parts of ethanol and 45 parts of water. The organosilicon quaternary ammonium salt was a synthetic product of chloropropyl trimethoxysilane and a long-chain tertiary amine; the polyhexamethylene guanidine hydrochloride was polyhexamethylene monoguanidine hydrochloride.
In the step 2), the fabric pre-finishing step included sizing, desizing and bleaching.
Specifically, a water-soluble sizing agent was used in the sizing; type and part by weight of each component in the water-soluble sizing agent were as follows: 100 parts of water, 10 parts of ethylene glycol, 6 parts of trimethyl acetate, 2 parts of sodium acetate, 0.5 parts of antimonous oxide, 6 parts of starch, 0.8 parts of penetrating agent and 4 parts of silicone oil.
Specifically, desizing was performed with a weak base having pH<8.
Specifically, aqueous solution of sodium hypochlorite was used as a bleaching liquor in the bleaching process.
In the step 2), reactive print was used in the printing and dyeing treatment. In the printing and dyeing treatment, a steaming temperature was 100° C., and time was 10 min.
In the step 2), the post-finishing included softening and shaping; a hydrophilic softening agent was taken for the softening. Further, the softening agent was dialkyl dimethyl quarternary ammonium salt.
This example discloses a method for preparing an antibacterial Lysimachia christinae Hance fiber textile fabric, including the following steps:
1) preparation of Lysimachia christinae Hance fiber: cellulose pulp was prepared, and added with caustic soda for aging, then yellowed with carbon disulfide, and added with Lysimachia christinae Hance dry powder, porous starch and xanthan gum to be mixed evenly, dissolved with caustic soda, and ripened, and subjected to wet spinning, postprocessed and dried to obtain the Lysimachia christinae Hance fiber; where the weight ratios of the cellulose pulp to caustic soda and carbon disulfide were 100:9:7; mass ratios of the cellulose pulp to the Lysimachia christinae Hance dry powder, the porous starch and the xanthan gum were 100:30:15:8.
2) Bamboo fiber, cotton fiber, polyester filament fiber and Lysimachia christinae Hance fiber were used and blended into a yarn, then the yarn was subjected to sectional warping to be prepared into a loom beam; a compound antibacterial sizing agent was used for sizing and airing to produce a raw Lysimachia christinae Hance fiber fabric on a shuttle loom; and the raw fabric was subjected to fabric pre-finishing, printing and dyeing treatment and post-finishing to obtain the antibacterial Lysimachia christinae Hance fiber textile fabric.
In the step 2), the weight ratios of the bamboo fiber to the cotton fiber, the polyester filament fiber and the Lysimachia christinae Hance fiber were 18:41:15:2.
In the step 2), the compound antibacterial finishing agent had a concentration of 2 g/L.
In the step 2), the compound antibacterial sizing agent included the following parts by weight of components: 2 parts of copper complex of ethylenediamine, parts of organosilicon quaternary ammonium salt, 3 parts of polyhexamethylene guanidine hydrochloride, 76 parts of ethanol and 50 parts of water. The organosilicon quaternary ammonium salt was a synthetic product of chloropropyl trimethoxysilane and a long-chain tertiary amine; the polyhexamethylene guanidine hydrochloride was polyhexamethylene monoguanidine hydrochloride.
In the step 2), the fabric pre-finishing step included sizing, desizing and bleaching.
Specifically, a water-soluble sizing agent was used in the sizing; type and part by weight of each component in the water-soluble sizing agent were as follows: 100 parts of water, 12 parts of ethylene glycol, 7 parts of trimethyl acetate, 3 parts of sodium acetate, 1 part of antimonous oxide, 8 parts of starch, 1 part of penetrating agent and 5 parts of silicone oil.
Specifically, desizing was performed with a weak base having pH<8.
Specifically, aqueous solution of sodium hypochlorite was used as a bleaching liquor in the bleaching process.
In the step 2), reactive print was used in the printing and dyeing treatment. In the printing and dyeing treatment, a steaming temperature was 100° C., and time was 10 min.
In the step 2), the post-finishing included softening and shaping. A hydrophilic softening agent was taken for the softening.
This example discloses a method for preparing an antibacterial Lysimachia christinae Hance fiber textile fabric, including the following steps:
1) preparation of Lysimachia christinae Hance fiber: cellulose pulp was prepared, and added with caustic soda for aging, then yellowed with carbon disulfide, and added with Lysimachia christinae Hance dry powder, porous starch and xanthan gum to be mixed evenly, dissolved with caustic soda, and ripened, and subjected to wet spinning, postprocessed and dried to obtain the Lysimachia christinae Hance fiber; where the weight ratios of the cellulose pulp to caustic soda and carbon disulfide were 100:9:7. Mass ratios of the cellulose pulp to the Lysimachia christinae Hance dry powder, the porous starch and the xanthan gum were 100:32:18:9.
2) Bamboo fiber, cotton fiber, polyester filament fiber and Lysimachia christinae Hance fiber were used and blended into a yarn, then the yarn was subjected to sectional warping to be prepared into a loom beam; a compound antibacterial sizing agent was used for sizing and airing to produce a raw Lysimachia christinae Hance fiber fabric on a shuttle loom; and the raw fabric was subjected to fabric pre-finishing, printing and dyeing treatment and post-finishing to obtain the antibacterial Lysimachia christinae Hance fiber textile fabric.
In the step 2), the weight ratios of the bamboo fiber to the cotton fiber, the polyester filament fiber and the Lysimachia christinae Hance fiber were 21:45:18:5.
In the step 2), the compound antibacterial finishing agent had a concentration of 4 g/L.
In the step 2), the compound antibacterial sizing agent included the following parts by weight of components: 3 parts of copper complex of ethylenediamine, parts of organosilicon quaternary ammonium salt, 4 parts of polyhexamethylene guanidine hydrochloride, 78 parts of ethanol and 52 parts of water. The organosilicon quaternary ammonium salt was a synthetic product of chloropropyl trimethoxysilane and a long-chain tertiary amine; the polyhexamethylene guanidine hydrochloride was polyhexamethylene biguanide hydrochloride.
In the step 2), the fabric pre-finishing step included sizing, desizing and bleaching.
Specifically, a water-soluble sizing agent was used in the sizing; type and part by weight of each component in the water-soluble sizing agent were as follows: 100 parts of water, 14 parts of ethylene glycol, 8 parts of trimethyl acetate, 4 parts of sodium acetate, 1.5 part of antimonous oxide, 9 parts of starch, 1.5 part of penetrating agent and 6 parts of silicone oil.
Specifically, desizing was performed with a weak base having pH<8.
Specifically, aqueous solution of sodium hypochlorite was used as a bleaching liquor in the bleaching process.
In the step 2), reactive print was used in the printing and dyeing treatment. In the printing and dyeing treatment, a steaming temperature was 110° C., and time was 12 min.
In the step 2), the post-finishing included softening and shaping. A hydrophilic softening agent was taken for the softening.
This example discloses a method for preparing an antibacterial Lysimachia christinae Hance fiber textile fabric, including the following steps:
1) preparation of Lysimachia christinae Hance fiber: cellulose pulp was prepared, and added with caustic soda for aging, then yellowed with carbon disulfide, and added with Lysimachia christinae Hance dry powder, porous starch and xanthan gum to be mixed evenly, dissolved with caustic soda, and ripened, and subjected to wet spinning, postprocessed and dried to obtain the Lysimachia christinae Hance fiber; where the weight ratios of the cellulose pulp to caustic soda and carbon disulfide were 100:9:7. Mass ratios of the cellulose pulp to the Lysimachia christinae Hance dry powder, the porous starch and the xanthan gum were 100:35:20:10.
2) Bamboo fiber, cotton fiber, polyester filament fiber and Lysimachia christinae Hance fiber were used and blended into a yarn, then the yarn was subjected to sectional warping to be prepared into a loom beam; a compound antibacterial sizing agent was used for sizing and airing to produce a raw Lysimachia christinae Hance fiber fabric on a shuttle loom; and the raw fabric was subjected to fabric pre-finishing, printing and dyeing treatment and post-finishing to obtain the antibacterial Lysimachia christinae Hance fiber textile fabric.
In the step 2), the weight ratios of the bamboo fiber to the cotton fiber, the polyester filament fiber and the Lysimachia christinae Hance fiber were 21:45:12:4.
In the step 2), the compound antibacterial finishing agent had a concentration of 2 g/L.
In the step 2), the compound antibacterial sizing agent included the following parts by weight of components: 1 parts of copper complex of ethylenediamine, parts of organosilicon quaternary ammonium salt, 5 parts of polyhexamethylene guanidine hydrochloride, 80 parts of ethanol and 56 parts of water. The organosilicon quaternary ammonium salt was a synthetic product of chloropropyl trimethoxysilane and a long-chain tertiary amine; the polyhexamethylene guanidine hydrochloride was polyhexamethylene monoguanidine hydrochloride.
In the step 2), the fabric pre-finishing step included sizing, desizing and bleaching.
Specifically, a water-soluble sizing agent was used in the sizing; type and part by weight of each component in the water-soluble sizing agent were as follows: 100 parts of water, 16 parts of ethylene glycol, 10 parts of trimethyl acetate, 5 parts of sodium acetate, 2 parts of antimonous oxide, 9 parts of starch, 2.5 parts of penetrating agent and 7 parts of silicone oil.
Specifically, desizing was performed with a weak base having pH<8.
Specifically, aqueous solution of sodium hypochlorite was used as a bleaching liquor in the bleaching process.
In the step 2), reactive print was used in the printing and dyeing treatment. In the printing and dyeing treatment, a steaming temperature was 105° C., and time was 10 min.
In the step 2), the post-finishing included softening and shaping. A hydrophilic softening agent was taken for the softening.
This example discloses a method for preparing an antibacterial Lysimachia christinae Hance fiber textile fabric, including the following steps:
1) preparation of Lysimachia christinae Hance fiber: cellulose pulp was prepared, and added with caustic soda for aging, then yellowed with carbon disulfide, and added with Lysimachia christinae Hance dry powder, porous starch and xanthan gum to be mixed evenly, dissolved with caustic soda, and ripened, and subjected to wet spinning, postprocessed and dried to obtain the Lysimachia christinae Hance fiber; where the weight ratios of the cellulose pulp to caustic soda and carbon disulfide were 100:9:7. Mass ratios of the cellulose pulp to the Lysimachia christinae Hance dry powder, the porous starch and the xanthan gum were 100:25:20:10.
2) Bamboo fiber, cotton fiber, polyester filament fiber and Lysimachia christinae Hance fiber were used and blended into a yarn, then the yarn was subjected to sectional warping to be prepared into a loom beam; a compound antibacterial sizing agent was used for sizing and airing to produce a raw Lysimachia christinae Hance fiber fabric on a shuttle loom; and the raw fabric was subjected to fabric pre-finishing, printing and dyeing treatment and post-finishing to obtain the antibacterial Lysimachia christinae Hance fiber textile fabric.
In the step 2), the weight ratios of the bamboo fiber to the cotton fiber, the polyester filament fiber and the Lysimachia christinae Hance fiber were 15:37:18:3.
In the step 2), the compound antibacterial finishing agent had a concentration of 5 g/L.
In the step 2), the compound antibacterial sizing agent included the following parts by weight of components: 2 parts of copper complex of ethylenediamine, 30 parts of organosilicon quaternary ammonium salt, 5 parts of polyhexamethylene guanidine hydrochloride, 80 parts of ethanol and 60 parts of water. The organosilicon quaternary ammonium salt was a synthetic product of chloropropyl trimethoxysilane and a long-chain tertiary amine; the polyhexamethylene guanidine hydrochloride was polyhexamethylene monoguanidine hydrochloride.
In the step 2), the fabric pre-finishing step included sizing, desizing and bleaching.
Specifically, a water-soluble sizing agent was used in the sizing; type and part by weight of each component in the water-soluble sizing agent were as follows: 100 parts of water, 18 parts of ethylene glycol, 10 parts of trimethyl acetate, 7 parts of sodium acetate, 2 parts of antimonous oxide, 10 parts of starch, 3 parts of penetrating agent and 8 parts of silicone oil.
Specifically, desizing was performed with a weak base having pH<8.
Specifically, aqueous solution of sodium hypochlorite was used as a bleaching liquor in the bleaching process.
In the step 2), reactive print was used in the printing and dyeing treatment. In the printing and dyeing treatment, a steaming temperature was 110° C., and time was 12 min.
In the step 2), the post-finishing included softening and shaping. A hydrophilic softening agent was taken for the softening.
The antibacterial Lysimachia christinae Hance fiber textile fabric prepared in Examples 1-5 was subjected to performance test. The test method and test result are as follows.
The antibacterial properties of the finished product fabric were detected by the Part 3: Standards of Oscillation Method in the Evaluation for Antibacterial Properties of Textiles (GB/T 20944.3-2008).
The washing dimensional change rate of the finished product was detected by the Preparation, Labeling and Measurement on Fabrics Samples and Clothing Samples in the Test for the Determination of Dimensional Changes of Textiles (GB/T 8628-2013). The product is qualified when the washing dimensional change rate ranges from −4% to +2%. The softness of the fabric was detected by Determination on the Relative Hand Value of Textiles: Instrumental Method (AATCC 202-2014). The greater the value is, the better the hand feel is. The product washing method was implemented in accordance with the method stipulated in 10.1.2 of GB/T 20944.3-2008.
The specific experiment effect data is shown in the Table below.
Escherichia
coli
Staphylococcus
aureus
Candida
albicans
Escherichia
coli
Staphylococcus
aureus
Candida
albicans
Escherichia
coli
Staphylococcus
aureus
Candida
albicans
To sum up, in this present invention, bamboo fiber, cotton fiber, polyester filament fiber and Lysimachia christinae Hance fiber serve as raw materials, and a compound antibacterial sizing agent is used for sizing, thus obtaining a textile with antibacterial functions. In the preparation steps of Lysimachia christinae Hance fiber, toxicity of Lysimachia christinae Hance is removed by caustic soda dissolving and ripening treatment. The prepared Lysimachia christinae Hance fiber is non-toxic and keeps anti-inflammatory efficiency, and compounded with the compound antibacterial sizing agent; Lysimachia christinae Hance is wrapped into the antibacterial sizing agent to exert a better antibacterial effect. By testing, the antibacterial ratio of the textile fabric is still greater than 85% after being cleaned for 100 times. The antibacterial Lysimachia christinae Hance textile fabric is comfortable and breathable. The antibacterial Lysimachia christinae Hance textile fabric has soft, delicate and smooth hand feel, a washing dimensional shrinkage lower than 2%, strong washability and durable effects. Therefore, the present invention effectively overcomes various shortcomings in the prior art and thus, has high industrial values in use.
The above examples are merely illustrative of the principle and efficacy of the present invention, but not construed as limiting the present invention. Any person skilled in the art can make modifications or alterations to the above examples within the spirit and scope of the present invention. Therefore, all the equivalent modifications or alterations accomplished by a person skilled in the art within the spirit and technical idea revealed in the present invention shall be still covered by the claims of the present invention.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202110372890.9 | Apr 2021 | CN | national |
| 202110373971.0 | Apr 2021 | CN | national |
| 202110373980.X | Apr 2021 | CN | national |
The present application is a continuation application of PCT/CN2021/117313 filed on Sep. 8, 2021. PCT/CN2021/117313 is related to and claims the benefit of priorities of the following Chinese applications: serial No. 202110373980.X, No. 202110372890.9, and No. 202110373971.0, all filed on Apr. 7, 2021. The disclosures of the forgoing applications are hereby incorporated by reference in their entirety, including any appendices or attachments thereof, for all purposes.
| Number | Date | Country | |
|---|---|---|---|
| Parent | PCT/CN2021/117313 | Sep 2021 | US |
| Child | 17712077 | US |
