CN114224143B - Highly-waterproof antibacterial breathable sleeping bag and preparation method thereof - Google Patents

Abstract

The invention discloses a highly waterproof antibacterial breathable sleeping bag and a preparation method thereof. The wool and acrylic fibers are treated by triethanolamine stearate quaternary ammonium salt solution, and the wool and acrylic fibers are endowed with stronger antibacterial property due to the charge attraction effect and the intermolecular hydrogen bond effect; the finally prepared sleeping bag has excellent antibacterial performance, good waterproof and moistureproof performance and is skin-friendly and comfortable.

Description

High-waterproof antibacterial breathable sleeping bag and preparation method thereof

Technical Field

The invention relates to the technical field of waterproof sleeping bags, in particular to a highly waterproof antibacterial breathable sleeping bag and a preparation method thereof.

Background

With the increase of outdoor activities of people, the sleeping bag becomes necessary equipment for outdoor camping, down or chemical fiber cotton is generally filled in the sleeping bag on the market to realize the heat preservation effect of the sleeping bag, and the down sleeping bag has extremely high heat preservation, good elasticity, high filling power, light weight, soft skin feeling and is popular with people.

However, because the down feather is derived from goose and duck feathers, the main component of the down feather is protein, and animal fat is attached to the surface of the down feather, so that the down feather sleeping bag is easy to moisten and breed bacteria in the long-term use process, the quality of the down feather sleeping bag is reduced, and even the health of people is harmed; meanwhile, the waterproof and air permeability of the sleeping bag is one of the factors considered during the purchase.

Based on the situation, the high-waterproof antibacterial breathable sleeping bag and the preparation method thereof are disclosed to solve the technical problem.

Disclosure of Invention

The invention aims to provide a high-waterproof antibacterial breathable sleeping bag and a preparation method thereof, and aims to solve the problems in the background art.

In order to solve the technical problems, the invention provides the following technical scheme: a highly waterproof, antibacterial, breathable sleeping bag comprising a down filling and a core sleeve; the down filler comprises, by weight, 75-90 parts of antibacterial down, 10-15 parts of wool and 4-6 parts of acrylic fiber.

Furthermore, the antibacterial down feather is obtained by processing a down feather raw material through degreasing liquid and antibacterial liquid.

Furthermore, the antibacterial liquid is mainly prepared by reacting sodium tripolyphosphate, N-methylene bisacrylamide, silver perfluorooctanoate, N-methyl-1, 3-propane diamine and triethylamine.

Furthermore, the degreasing solution mainly comprises biological complex enzyme, sodium sulfanilate and cocamidopropyl betaine.

Further, the biological compound enzyme is a mixture of lipase, neutral protease and sodium bisulfite; the weight ratio of the lipase to the neutral protease to the sodium bisulfite is 8: 1: 0.5.

further, the down raw material is goose down, duck down or a mixture of the goose down and the duck down; preferably, the down material is goose down.

Further, the core sleeve comprises a bamboo charcoal fiber fabric and a polytetrafluoroethylene film, and the bamboo charcoal fiber fabric and the polytetrafluoroethylene film are compounded through a hot melt adhesive.

Further, a preparation method of the high waterproof antibacterial breathable sleeping bag comprises the following steps;

step 1, down feather pretreatment:

step 2, performing antibacterial treatment to obtain antibacterial down feather:

step 3, preparing the down filler;

and 4, preparing the sleeping bag.

Further, the preparation method of the high-waterproof antibacterial breathable sleeping bag comprises the following steps:

step 1, sequentially sterilizing, removing stems, removing ash and sand, finely dividing, dehydrating, degreasing and drying down feather raw materials for later use;

step 2, S21, preparing an antibacterial liquid;

A. n, N-methylene bisacrylamide and N-methyl-1, 3-propane diamine are taken as monomers, and diethanolamine is taken as a blocking agent, and the polyamide amine is prepared through polymerization reaction;

B. preparing the prepared polyamidoamine into an aqueous solution, mixing the aqueous solution with silver perfluorooctanoate, adding triethylamine, and reacting to obtain a fluorinated polyamidoamine/nano-silver compound;

C. dispersing the fluoridized polyamidoamine/nano-silver compound in deionized water, and adding sodium tripolyphosphate to adjust the pH value to obtain an antibacterial treatment solution;

s22, adding the degreased down feather obtained in the step 1 into the antibacterial treatment liquid, performing antibacterial treatment, and drying to obtain antibacterial down feather;

step 3, soaking the acrylic fibers and the wool into the aqueous solution of triethanolamine stearate quaternary ammonium salt, wherein the bath ratio is 10-15: 1, dipping for 10-12h at the temperature of 50-55 ℃, filtering, drying in vacuum, adding the antibacterial down prepared in the step 2, and mixing uniformly to prepare a down filler; the acrylic fiber is short fiber with length of 10-15 mm.

And 4, compounding the bamboo charcoal fiber fabric, the polytetrafluoroethylene film and the hot melt adhesive to prepare a waterproof fabric, sewing a core sleeve by taking the polytetrafluoroethylene film as the outer side, filling the down feather filler prepared in the step 3 into the core sleeve, and sewing to obtain the sleeping bag.

Further, the step 2 comprises the following steps:

s21, preparing an antibacterial liquid;

A. mixing N, N-methylene bisacrylamide and N-methyl-1, 3-propane diamine as monomers in the molar ratio of 2 to 1, dissolving in methanol water solution, reacting at 55-60 deg.c under nitrogen protection for 20-24 hr, cooling naturally, adding diethanolamine as end capping agent at 40-45 deg.c for 16-18 hr, rotary evaporating to concentrate, adding ether to form precipitate, vacuum drying to obtain polyamide amine;

B. mixing 8 wt.% aqueous solution of polyamidoamine with silver perfluorooctanoate, dissolving the mixture in absolute ethyl alcohol, adding triethylamine, uniformly stirring, reacting at the temperature of 35-40 ℃ for 8-10h at the temperature of 80-90 ℃, removing the absolute ethyl alcohol by rotary evaporation, adding acetone to form a precipitate, and performing vacuum drying to obtain a fluorinated polyamidoamine/nano-silver compound;

C. dispersing the fluoridized polyamidoamine/nano-silver compound in deionized water, adding sodium tripolyphosphate to adjust the pH value to 7.0-7.3, and obtaining an antibacterial treatment solution;

s22, adding the degreased down feather processed in the step 1 into the antibacterial processing liquid, and keeping the bath ratio of 5: 1, soaking for 30-40min at the temperature of 40-45 ℃, filtering, repeating the operation of soaking the antibacterial liquid once, filtering, and drying at the temperature of 110-115 ℃ to obtain the antibacterial down feather.

Further, the degreasing operation in the step 1 comprises the following steps:

s11, adding the dehydrated down feather raw material into water, wherein the bath ratio is 20: adding biological complex enzyme, degreasing for 1-2h at 25-30 ℃, and filtering for later use;

s12, adding the filtered down raw material into deionized water, and adding sodium sulfanilate and cocamidopropyl betaine; soaking for 45-60min at 40-50 deg.C, filtering, and oven drying at 70-80 deg.C to obtain defatted down.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, the bamboo charcoal fiber fabric, the polytetrafluoroethylene film and the hot melt adhesive are compounded to prepare the waterproof fabric, the waterproof and breathable performance of the fabric is excellent due to the existence of the polytetrafluoroethylene film, and the antibacterial performance of the bamboo charcoal fiber fabric is good, so that the waterproof fabric is used as a raw material, the polytetrafluoroethylene film is arranged on the outer side, the core sleeve is sewn, and the down filling material is filled into the core sleeve, so that the prepared sleeping bag has good heat preservation performance and excellent waterproof, antibacterial and breathable performance.

When the down filler is prepared, basic sterilization and impurity removal are carried out on down raw materials, firstly, the down is subjected to enzymolysis and degreasing treatment by using a biological compound enzyme, a compact mixture layer of alcohol and ester on the surface of the down is removed, and then the mixture of the alcohol, the ester and the like remained on the surface of the down is continuously treated by using sodium sulfanilate and cocamidopropyl betaine; the amino group on the surface of the sodium sulfanilate molecule and the hydroxyl group on the surface of the down feather generate hydrogen bonding action, the sodium sulfanilate is adhered to the surface of the down feather through the hydrogen bonding action, and the sulfonate is exposed in the molecule.

According to the invention, when the antibacterial liquid is prepared, N-methylene bisacrylamide and N-methyl-1, 3-propane diamine are taken as monomers, diethanolamine is taken as a blocking agent, and the polyamidoamine with the dendritic structure is prepared through polymerization reaction, so that the phenomenon of agglomeration of nano silver particles is effectively improved. However, the polyamidoamine has strong hydrophilicity due to a large amount of amino groups and a small amount of hydroxyl groups on the surface, is easy to absorb moisture after long-term use, reduces the sleeping comfort, and is easy to breed bacteria in a humid environment. In order to solve the problem, the invention selects and mixes the polyamidoamine and the silver perfluorooctanoate, and generates the fluorizated polyamidoamine/nano silver compound under the catalytic action of the ethylenediamine, thereby playing an excellent hydrophobic effect on one hand, and continuously playing an efficient antibacterial effect on the nano silver as a stabilizer of the nano silver on the other hand.

When the antibacterial liquid is prepared, the pH value of the aqueous solution of the fluoridated polyamidoamine/nano-silver compound is adjusted to be neutral in advance by utilizing the sodium tripolyphosphate, the fluoridated polyamidoamine has positive charges under the neutral condition, the surfaces of the degreased down feather are uniformly distributed with sulfonic groups and betaine groups with negative charges, and the fluoridated polyamidoamine/nano-silver compound is also uniformly distributed on the surfaces of the down feather due to the attraction effect of the positive charges and the negative charges to form a uniform and compact antibacterial waterproof layer.

The wool and acrylic fibers are treated by the triethanolamine stearate quaternary ammonium salt solution on the surfaces, and the wool and acrylic fibers have stronger antibacterial property due to charge attraction and intermolecular hydrogen bond; the finally prepared sleeping bag has excellent antibacterial performance, good waterproof and moistureproof performance and is skin-friendly and comfortable.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

A preparation method of a highly waterproof antibacterial breathable sleeping bag comprises the following steps:

s11, adding the dehydrated down feather raw material into water, wherein the bath ratio is 20: adding biological complex enzyme, degreasing for 1h at the temperature of 25 ℃, and filtering for later use;

s12, adding the filtered down raw material into deionized water, and adding sodium sulfanilate and cocamidopropyl betaine; soaking for 45min at 40 deg.C, filtering, and oven drying at 70 deg.C to obtain defatted down.

Step 2, S21, preparing an antibacterial liquid;

A. mixing N, N-methylene bisacrylamide and N-methyl-1, 3-propane diamine as monomers in the molar ratio of 2 to 1, dissolving in water solution of methanol, reacting at 55 deg.c under nitrogen protection for 20 hr, cooling naturally, adding diethanolamine as end capping agent at 40 deg.c for 16 hr, rotary evaporating to concentrate, adding ether to form precipitate, vacuum drying to obtain polyamidoamine;

B. mixing 8 wt.% aqueous solution of polyamidoamine with silver perfluorooctanoate, dissolving the mixture in absolute ethyl alcohol, adding triethylamine, uniformly stirring, reacting at 35 ℃ for 8 hours at 80 ℃, removing the absolute ethyl alcohol by rotary evaporation, adding acetone to form a precipitate, and performing vacuum drying to obtain a fluorinated polyamidoamine/nano-silver compound;

C. dispersing the fluoridized polyamidoamine/nano-silver compound in deionized water, adding sodium tripolyphosphate to adjust the pH value to 7.0-7.3, and obtaining an antibacterial treatment solution;

s22, adding the degreased down feather processed in the step 1 into the antibacterial processing liquid, and keeping the bath ratio of 5: 1, soaking for 30min at the temperature of 40 ℃, filtering, repeating the soaking operation of the antibacterial liquid once, filtering, and drying at the temperature of 110 ℃ to obtain the antibacterial down feather.

Step 3, soaking the acrylic fibers and the wool into the aqueous solution of triethanolamine stearate quaternary ammonium salt, wherein the bath ratio is 10: 1, dipping for 10 hours at the temperature of 50 ℃, filtering, drying in vacuum, adding the antibacterial down prepared in the step 2, and uniformly mixing to prepare a down filler;

and 4, compounding the bamboo charcoal fiber fabric, the polytetrafluoroethylene film and the hot melt adhesive to prepare a waterproof fabric, sewing a core sleeve by taking the polytetrafluoroethylene film as the outer side, filling the down feather filler prepared in the step 3 into the core sleeve, and sewing to obtain the sleeping bag.

In the embodiment, the down filler comprises the following raw materials, by weight, 75 parts of antibacterial down, 10 parts of wool and 4 parts of acrylic fiber.

The biological compound enzyme is a mixture of lipase, neutral protease and sodium bisulfite; the weight ratio is 8: 1: 0.5;

the down feather is goose down.

Example 2

A preparation method of a highly waterproof antibacterial breathable sleeping bag comprises the following steps:

s11, adding the dehydrated down feather raw material into water, wherein the bath ratio is 20: adding biological complex enzyme, degreasing for 1.5h at the temperature of 27 ℃, and filtering for later use;

s12, adding the filtered down raw material into deionized water, and adding sodium sulfanilate and cocamidopropyl betaine; soaking for 52min at 44 deg.C, filtering, and oven drying at 75 deg.C to obtain defatted down.

Step 2, S21, preparing an antibacterial liquid;

A. mixing N, N-methylene bisacrylamide and N-methyl-1, 3-propane diamine as monomers in the molar ratio of 2 to 1, dissolving in water solution of methanol, reacting at 57 deg.c for 22 hr under nitrogen protection, cooling naturally, adding diethanolamine as end capping agent at 42 deg.c for 17 hr, rotary evaporating to concentrate the product, adding ether to form precipitate, vacuum drying to obtain polyamide amine;

B. mixing 8 wt.% aqueous solution of polyamidoamine with silver perfluorooctanoate, dissolving in absolute ethyl alcohol, adding triethylamine, uniformly stirring, reacting at 37 ℃ for 9 hours at 84 ℃, removing the absolute ethyl alcohol by rotary evaporation, adding acetone to form a precipitate, and performing vacuum drying to obtain a fluorinated polyamidoamine/nano-silver compound;

C. dispersing the fluoridized polyamidoamine/nano-silver compound in deionized water, adding sodium tripolyphosphate to adjust the pH value to 7.2, and obtaining an antibacterial treatment solution;

s22, adding the degreased down feather processed in the step 1 into the antibacterial processing liquid, and keeping the bath ratio of 5: 1, soaking for 35min at the temperature of 43 ℃, filtering, repeating the soaking operation of the antibacterial liquid once, filtering, and drying at the temperature of 112 ℃ to obtain the antibacterial down feather.

Step 3, soaking the acrylic fibers and the wool into the aqueous solution of triethanolamine stearate quaternary ammonium salt, wherein the bath ratio is 13: 1, dipping for 11 hours at the temperature of 53 ℃, filtering, drying in vacuum, adding the antibacterial down feather prepared in the step 2, and mixing uniformly to prepare a down feather filler;

and 4, compounding the bamboo charcoal fiber fabric, the polytetrafluoroethylene film and the hot melt adhesive to prepare a waterproof fabric, sewing a core sleeve by taking the polytetrafluoroethylene film as the outer side, filling the down feather filler prepared in the step 3 into the core sleeve, and sewing to obtain the sleeping bag.

In the embodiment, the down filler comprises the following raw materials, by weight, 85 parts of antibacterial down, 12 parts of wool and 5 parts of acrylic fiber.

The biological complex enzyme is a mixture of lipase, neutral protease and sodium bisulfite; the weight ratio of the components is 8: 1: 0.5;

the down feather is goose down.

Example 3

A preparation method of a highly waterproof antibacterial breathable sleeping bag comprises the following steps:

s11, adding the dehydrated down feather raw material into water, wherein the bath ratio is 20: adding biological complex enzyme, degreasing for 2h at the temperature of 30 ℃, and filtering for later use;

s12, adding the filtered down raw material into deionized water, and adding sodium sulfanilate and cocamidopropyl betaine; soaking for 60min at 50 deg.C, filtering, and oven drying at 80 deg.C to obtain defatted down.

Step 2, S21, preparing an antibacterial liquid;

A. mixing N, N-methylene bisacrylamide and N-methyl-1, 3-propane diamine as monomers in the molar ratio of 2 to 1, dissolving in water solution of methanol, reacting at 60 deg.c under nitrogen protection for 24 hr, cooling naturally, adding diethanolamine as end capping agent at 45 deg.c for 18 hr, rotary evaporating to concentrate, adding ether to form precipitate, vacuum drying to obtain polyamidoamine;

B. mixing 8 wt.% aqueous solution of polyamidoamine with silver perfluorooctanoate, dissolving the mixture in absolute ethyl alcohol, adding triethylamine, uniformly stirring, reacting at 40 ℃ for 10 hours at 90 ℃, removing the absolute ethyl alcohol by rotary evaporation, adding acetone to form a precipitate, and performing vacuum drying to obtain a fluorinated polyamidoamine/nano-silver compound;

C. dispersing the fluoridized polyamidoamine/nano-silver compound in deionized water, adding sodium tripolyphosphate to adjust the pH value to 7.3, and obtaining an antibacterial treatment solution;

s22, adding the degreased down feather processed in the step 1 into the antibacterial processing liquid, and keeping the bath ratio of 5: 1, soaking for 40min at the temperature of 45 ℃, filtering, repeating the soaking operation of the antibacterial liquid once, filtering, and drying at the temperature of 115 ℃ to obtain the antibacterial down feather.

Step 3, soaking the acrylic fibers and the wool into the aqueous solution of triethanolamine stearate quaternary ammonium salt, wherein the bath ratio is 15: 1, dipping for 12 hours at the temperature of 55 ℃, filtering, drying in vacuum, adding the antibacterial down prepared in the step 2, and uniformly mixing to prepare a down filler;

and 4, compounding the bamboo charcoal fiber fabric, the polytetrafluoroethylene film and the hot melt adhesive to prepare a waterproof fabric, sewing a core sleeve by taking the polytetrafluoroethylene film as the outer side, filling the down feather filler prepared in the step 3 into the core sleeve, and sewing to obtain the sleeping bag.

In the embodiment, the down filler comprises the following raw materials, by weight, 90 parts of antibacterial down, 15 parts of wool and 6 parts of acrylic fiber.

The biological complex enzyme is a mixture of lipase, neutral protease and sodium bisulfite; the weight ratio is 8: 1: 0.5;

the down feather is goose down.

Example 4

A preparation method of a highly waterproof antibacterial breathable sleeping bag comprises the following steps:

s11, adding the dehydrated down feather raw material into water, wherein the bath ratio is 20: adding biological complex enzyme, degreasing for 2h at the temperature of 30 ℃, and filtering for later use;

s12, adding the filtered down raw material into deionized water, and adding sodium sulfanilate and cocamidopropyl betaine; soaking for 60min at 50 deg.C, filtering, and oven drying at 80 deg.C to obtain defatted down.

Step 2, S21, preparing an antibacterial liquid;

A. mixing N, N-methylene bisacrylamide and N-methyl-1, 3-propane diamine as monomers in the molar ratio of 2 to 1, dissolving in water solution of methanol, reacting at 60 deg.c under nitrogen protection for 24 hr, cooling naturally, adding diethanolamine as end capping agent at 45 deg.c for 18 hr, rotary evaporating to concentrate, adding ether to form precipitate, vacuum drying to obtain polyamidoamine;

B. mixing 8 wt.% aqueous solution of polyamidoamine with silver perfluorooctanoate, dissolving the mixture in absolute ethyl alcohol, adding triethylamine, uniformly stirring, reacting at 40 ℃ for 10 hours at 90 ℃, removing the absolute ethyl alcohol by rotary evaporation, adding acetone to form a precipitate, and performing vacuum drying to obtain a fluorinated polyamidoamine/nano-silver compound;

C. dispersing the fluoridized polyamidoamine/nano-silver compound in deionized water, adding sodium tripolyphosphate to adjust the pH value to 7.3, and obtaining an antibacterial treatment solution;

s22, adding the degreased down feather processed in the step 1 into the antibacterial processing liquid, and keeping the bath ratio of 5: 1, soaking for 40min at the temperature of 45 ℃, filtering, repeating the soaking operation of the antibacterial liquid once, filtering, and drying at the temperature of 112 ℃ to obtain the antibacterial down feather.

Step 3, soaking the acrylic fibers and the wool into the aqueous solution of triethanolamine stearate quaternary ammonium salt, wherein the bath ratio is 15: 1, dipping for 12 hours at the temperature of 53 ℃, filtering, drying in vacuum, adding the antibacterial down prepared in the step 2, and uniformly mixing to prepare a down filler;

and 4, compounding the bamboo charcoal fiber fabric, the polytetrafluoroethylene film and the hot melt adhesive to prepare a waterproof fabric, sewing a core sleeve by taking the polytetrafluoroethylene film as the outer side, filling the down feather filler prepared in the step 3 into the core sleeve, and sewing to obtain the sleeping bag.

In the embodiment, the down filler comprises the following raw materials, by weight, 87 parts of antibacterial down, 15 parts of wool and 5 parts of acrylic fiber.

The biological complex enzyme is a mixture of lipase, neutral protease and sodium bisulfite; the weight ratio is 8: 1: 0.5;

the down feather is duck down.

Comparative example 1

A preparation method of a highly waterproof antibacterial breathable sleeping bag comprises the following steps:

step 1, S11, adding water into the dehydrated down feather raw material, wherein the bath ratio is 20: adding biological complex enzyme, degreasing for 2h at the temperature of 30 ℃, filtering, washing with water, filtering, and drying at the temperature of 80 ℃ to obtain the degreased down.

The contents of step 2-4 are the same as those of step 2-4 of example 3.

Comparative example 2

A preparation method of a highly waterproof antibacterial breathable sleeping bag comprises the following steps:

s11, adding the dehydrated down feather raw material into water, wherein the bath ratio is 20: 1, adding a biological complex enzyme, carrying out degreasing treatment for 2 hours at the temperature of 30 ℃, and filtering for later use;

s12, adding the filtered down raw material into deionized water, and adding sodium sulfanilate and cocamidopropyl betaine; soaking for 60min at 50 deg.C, filtering, and oven drying at 80 deg.C to obtain defatted eiderdown.

Step 2, S21, preparing an antibacterial liquid;

A. mixing N, N-methylene bisacrylamide and N-methyl-1, 3-propane diamine as monomers in the molar ratio of 2 to 1, dissolving in water solution of methanol, reacting at 60 deg.c under nitrogen protection for 24 hr, cooling naturally, adding diethanolamine as end capping agent at 45 deg.c for 18 hr, rotary evaporating to concentrate, adding ether to form precipitate, vacuum drying to obtain polyamidoamine;

B. mixing 8 wt.% aqueous solution of polyamidoamine with silver chloride, dissolving the mixture in absolute ethyl alcohol, adding sodium borohydride, uniformly stirring, reacting at 40 ℃ for 10 hours at 90 ℃, removing the absolute ethyl alcohol by rotary evaporation, adding acetone to form a precipitate, and performing vacuum drying to obtain a polyamidoamine/nano-silver compound;

C. dispersing the polyamidoamine/nano-silver compound in deionized water, adding sodium tripolyphosphate to adjust the pH value to 7.3, and obtaining an antibacterial treatment solution;

s22, adding the degreased down feather processed in the step 1 into the antibacterial processing liquid, and keeping the bath ratio of 5: 1, soaking for 40min at the temperature of 45 ℃, filtering, repeating the soaking operation of the antibacterial liquid once, filtering, and drying at the temperature of 115 ℃ to obtain the antibacterial down feather.

The contents of step 3 and step 4 are the same as those of step 3-4 of example 3.

Comparative example 3

A preparation method of a highly waterproof antibacterial breathable sleeping bag comprises the following steps:

s11, adding the dehydrated down feather raw material into water, wherein the bath ratio is 20: adding biological complex enzyme, degreasing for 2h at the temperature of 30 ℃, and filtering for later use;

s12, adding the filtered down raw material into deionized water, and adding sodium sulfanilate and cocamidopropyl betaine; soaking for 60min at 50 deg.C, filtering, and oven drying at 80 deg.C to obtain defatted down.

And 2, putting the degreased down feather obtained by the treatment in the step 1 into deionized water, and keeping the bath ratio of 5: 1,

s22, adding the nano silver particles into a sodium polyacrylate solution to obtain an antibacterial liquid treatment solution, adding the degreased down feather obtained in the step 1 into the antibacterial liquid treatment solution, and keeping the bath ratio of 5: 1, soaking for 40min at the temperature of 45 ℃, filtering, repeating the soaking operation of the antibacterial liquid once, filtering, and drying at the temperature of 115 ℃ to obtain the antibacterial down feather.

The contents of step 3 and step 4 are the same as those of step 3-4 of example 3.

Examples of the experiments

And (3) antibacterial property test: the sleeping bags prepared in examples 1-4 and comparative examples 1-3 were subjected to an antibacterial property test according to the regulations of GB/T20944.3-2008 evaluation of antibacterial property of textile part 3, and the test results are shown in Table 1 below:

TABLE 1

As can be seen from the data in Table 1, the sleeping bags prepared in examples 1-4 all had an average inhibitory rate of 98.8 or more against Staphylococcus aureus, Candida albicans, and Escherichia coli, and were highly antibacterial. In comparative example 1, sodium sulfanilate and cocamidopropyl betaine are not added in the degreasing process of the down feather raw material, so that the charge attraction effect cannot be formed between the surface of the down feather and the antibacterial agent, the antibacterial agent is unevenly distributed, the adhesion rate of the antibacterial agent is reduced, and finally the antibacterial property of the sleeping bag is lower than that of example 3. In comparative example 3, the antibacterial liquid is obtained by directly dipping the down feather in the nano silver particle solution, and the nano silver particle solution is finally unevenly distributed on the surface of the down feather due to agglomeration and has low load rate, so that the antibacterial property is inferior to that of example 3.

Examples 1-4, comparative examples 1-3, after half a year of standing in the same environment, it was finally found that comparative example 2 had the worst moisture resistance. The reason is that in the comparative example 2, when the antibacterial liquid is prepared, the polyamidoamine and the silver chloride solution generate the polyamidoamine/nano-silver composite material under the catalysis of sodium borohydride, fluorine is not introduced, and the prepared sleeping bag has strong hydrophilicity and no hydrophobicity, so that the moisture-proof capability of the sleeping bag is weaker.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. A preparation method of a highly waterproof antibacterial breathable sleeping bag is characterized by comprising the following steps: the method comprises the following steps:

step 1, sequentially sterilizing, removing stems, removing dust and sand, finely dividing and dehydrating the down raw materials, adding the dehydrated down raw materials into water, wherein the bath ratio is 20: adding biological complex enzyme, degreasing for 1-2h at 25-30 ℃, and filtering for later use; adding the filtered down raw material into deionized water, and adding sodium sulfanilate and cocamidopropyl betaine; soaking for 45-60min at 40-50 deg.C, filtering, and oven drying at 70-80 deg.C to obtain defatted down;

step 2, S21, preparing an antibacterial liquid;

A. n, N-methylene bisacrylamide and N-methyl-1, 3-propane diamine are taken as monomers, and diethanolamine is taken as a blocking agent, and the polyamide amine is prepared through polymerization reaction;

B. preparing the prepared polyamidoamine into an aqueous solution, mixing the aqueous solution with silver perfluorooctanoate, adding triethylamine, and reacting to obtain a fluorinated polyamidoamine/nano-silver compound;

C. dispersing the fluoridized polyamidoamine/nano-silver compound in deionized water, and adding sodium tripolyphosphate to adjust the pH value to obtain an antibacterial treatment solution;

s22, adding the degreased down feather obtained in the step 1 into the antibacterial treatment liquid, performing antibacterial treatment, and drying to obtain antibacterial down feather;

step 3, soaking the acrylic fibers and the wool into the aqueous solution of triethanolamine stearate quaternary ammonium salt, wherein the bath ratio is 10-15: 1, dipping for 10-12h at the temperature of 50-55 ℃, filtering, drying in vacuum, adding the antibacterial down prepared in the step 2, and mixing uniformly to prepare a down filler;

and 4, compounding the bamboo charcoal fiber fabric, the polytetrafluoroethylene film and the hot melt adhesive to prepare a waterproof fabric, sewing a core sleeve by taking the polytetrafluoroethylene film as the outer side, filling the down feather filler prepared in the step 3 into the core sleeve, and sewing to obtain the sleeping bag.

2. The method for preparing a breathable sleeping bag with high water resistance and antibacterial property according to claim 1, wherein; the sleeping bag comprises a down filling and a core sleeve; the down filler comprises, by weight, 75-90 parts of antibacterial down, 10-15 parts of wool and 4-6 parts of acrylic fiber.

3. The method for preparing a breathable sleeping bag with high water resistance and antibacterial property according to claim 1, wherein the method comprises the following steps: the degreasing liquid in the degreasing process mainly comprises biological complex enzyme, sodium sulfanilate and cocamidopropyl betaine; the down feather is goose down, duck down or a mixture of the goose down and the duck down.

4. The method for preparing a breathable sleeping bag with high water resistance and antibacterial property according to claim 3, wherein the method comprises the following steps: the biological complex enzyme is a mixture of lipase, neutral protease and sodium bisulfite; the weight ratio of the lipase to the neutral protease to the sodium bisulfite is 8: 1: 0.5.

5. the method for preparing the breathable sleeping bag with high water resistance and antibiosis as claimed in claim 1 is characterized in that: the step 2 comprises the following steps:

s21, preparing an antibacterial liquid;

A. mixing N, N-methylene bisacrylamide and N-methyl-1, 3-propane diamine as monomers in the molar ratio of 2 to 1, dissolving in methanol water solution, reacting at 55-60 deg.c under nitrogen protection for 20-24 hr, cooling naturally, adding diethanolamine as end capping agent at 40-45 deg.c for 16-18 hr, rotary evaporating to concentrate, adding ether to form precipitate, vacuum drying to obtain polyamide amine;

B. mixing 8 wt.% aqueous solution of polyamidoamine with silver perfluorooctanoate, dissolving the mixture in absolute ethyl alcohol, adding triethylamine, uniformly stirring, reacting at the temperature of 35-40 ℃ for 8-10h at the temperature of 80-90 ℃, removing the absolute ethyl alcohol by rotary evaporation, adding acetone to form a precipitate, and performing vacuum drying to obtain a fluorinated polyamidoamine/nano-silver compound;

C. dispersing the fluoridized polyamidoamine/nano-silver compound in deionized water, adding sodium tripolyphosphate to adjust the pH value to 7.0-7.3, and obtaining an antibacterial treatment solution;

s22, adding the degreased down feather processed in the step 1 into the antibacterial processing liquid, and keeping the bath ratio of 5: 1, soaking for 30-40min at the temperature of 40-45 ℃, filtering, repeating the operation of soaking the antibacterial liquid once, filtering, and drying at the temperature of 110-115 ℃ to obtain the antibacterial down feather.