阅读说明：本技术 一种具有驱蚊功能的纤维制备的纱网面料及其制备工艺 (Gauze fabric prepared from fibers with mosquito repelling function and preparation process thereof ) 是由 管明强 管明钧 管明祥 陈媛媛 于 2020-11-26 设计创作，主要内容包括：本发明涉及一种具有驱蚊功能的纤维制备的纱网面料及其制备工艺。所述纱网面料由经纱和纬纱编织而成；所述经纱采用具有驱蚊功能的纤维纺纱得到；所述纬纱采用聚氨酯纤维与棉纤维混纺得到；所述具有驱蚊功能的纤维是以聚酯纤维作为框架材料、聚羟基烷酸酯微球作为增强材料、植物提取物作为功能材料制备得到。本发明特别添加了具有驱蚊功能的纤维,不仅具有防蚊虫或装饰作用,而且还有较强的驱蚊作用。本发明使用的材料无毒无污染且容易制备,适合室内广泛的使用,且制备工艺较为简便,易于操作,适合推广使用。(The invention relates to a gauze fabric prepared from fibers with a mosquito repelling function and a preparation process thereof. The gauze fabric is woven by warp yarns and weft yarns; the warp yarns are obtained by spinning fibers with a mosquito repelling function; the weft yarns are obtained by blending polyurethane fibers and cotton fibers; the fiber with the mosquito repelling function is prepared by taking polyester fiber as a framework material, polyhydroxyalkanoate microspheres as a reinforcing material and plant extracts as functional materials. The invention is added with the fiber with mosquito repelling function, which not only has mosquito repelling or decorating function, but also has strong mosquito repelling function. The material used in the invention is nontoxic and pollution-free, is easy to prepare, is suitable for being widely used indoors, has simple and convenient preparation process, is easy to operate, and is suitable for popularization and use.)

1. A gauze fabric prepared from fibers with a mosquito repelling function is characterized in that the gauze fabric is formed by weaving warp yarns and weft yarns; the warp yarns are obtained by spinning fibers with a mosquito repelling function; the weft yarns are obtained by blending polyurethane fibers and cotton fibers;

the fiber with the mosquito repelling function is prepared by taking polyester fiber as a framework material, polyhydroxyalkanoate microspheres as a reinforcing material and plant extracts as functional materials.

2. The gauze fabric made of fibers and having the mosquito repelling function according to claim 1, wherein the weight ratio of the polyurethane fibers to the cotton fibers in the weft yarns is 6-8: 1.

3. The gauze fabric prepared from the fibers with the mosquito repelling function according to claim 1, wherein the polyester fibers are porous polyester fibers; the polyhydroxyalkanoate is one or more of PHB, PHBV and PHBH; the plant extract is effective substance extracted from folium Artemisiae Argyi, herba Artemisiae Annuae and herba Menthae.

4. The gauze fabric prepared from fibers with the mosquito repelling function according to claim 1, wherein the preparation method of the plant extract comprises the following steps:

s1, collecting dried folium artemisiae argyi, sweet wormwood herb and mint, cleaning the folium artemisiae argyi, sweet wormwood herb and mint by using purified water, drying the folium artemisiae argyi, sweet wormwood herb and mint at 50-70 ℃ for 2-5 hours, respectively grinding the folium artemisiae argyi, sweet wormwood herb and mint into powder, and sieving the powder by using a 50-100-mesh sieve to respectively obtain folium artemisiae argyi powder, sweet wormwood herb powder;

s2, weighing the folium artemisiae argyi powder, the sweet wormwood herb powder and the mint powder, adding the folium artemisiae argyi powder, the sweet wormwood herb powder and the mint powder into absolute ethyl alcohol, carrying out ultrasonic dispersion to be uniform, sealing, placing in a shade place for standing for 18-24 h, carrying out vacuum filtration to collect liquid, and carrying out rotary evaporation to remove a solvent to obtain a plant extract;

wherein the mass ratio of the folium artemisiae argyi powder, the sweet wormwood herb powder and the mint powder to the absolute ethyl alcohol is 1: 0.4-0.6: 0.5-0.8: 5-10.

5. The gauze fabric prepared from the fibers with the mosquito repelling function according to claim 1, wherein the preparation method of the fibers with the mosquito repelling function comprises the following steps:

step 1, etching polyester fiber: etching the polyester fiber by using alkali liquor to obtain a polyester fiber etching treatment object;

step 2, activating polyester fibers: activating the polyester fiber etching treatment object by using an activating agent to obtain a polyester fiber activation treatment object; wherein the activating agent is diethylaminoethyl methacrylate;

step 3, preparing polyhydroxyalkanoate microspheres: mixing polyhydroxyalkanoate and plant extracts to prepare polyhydroxyalkanoate microspheres;

step 4, preparing fibers with the mosquito repelling function: the fiber with the mosquito repelling function is prepared by compounding the polyester fiber activation treatment substance and polyhydroxyalkanoate microspheres.

6. The gauze fabric prepared from fibers with the mosquito repelling function according to claim 5, wherein the step 1 comprises the following specific steps:

weighing polyester fibers, adding the polyester fibers into a sodium hydroxide solution, carrying out ultrasonic treatment until the polyester fibers are uniform, heating to 80-100 ℃, carrying out reflux treatment for 0.5-2 h, cooling to room temperature, standing for 1-5 h, filtering and collecting solids, washing the solids to be neutral by using purified water, and carrying out vacuum drying to obtain an etched polyester fiber treatment product;

wherein the concentration of the sodium hydroxide solution is 0.1-1 mol/L; the mass ratio of the polyester fiber to the sodium hydroxide solution is 1: 10-20.

7. The gauze fabric prepared from fibers with the mosquito repelling function according to claim 5, wherein the step 2 specifically comprises the following steps:

adding the polyester fiber etching treatment substance into deionized water, adding diethylaminoethyl methacrylate, stirring uniformly, soaking for 2-10 h, filtering, collecting solids, washing with purified water to neutrality, and vacuum drying to obtain the polyester fiber activation treatment substance;

wherein the mass ratio of the polyester fiber etching treatment product to the diethylaminoethyl methacrylate to the deionized water is 1: 0.2-0.6: 10-15.

8. The gauze fabric prepared from fibers with the mosquito repelling function according to claim 5, wherein the specific steps of the step 3 are as follows:

s1, weighing ammonium zirconium carbonate, adding the ammonium zirconium carbonate into deionized water, adding Tween-80, and performing ultrasonic dispersion until the mixture is uniform to obtain a water phase;

wherein the mass ratio of the ammonium zirconium carbonate, the Tween-80 and the deionized water is 1: 0.2-0.4: 5-10;

s2, weighing polyhydroxyalkanoate, adding the polyhydroxyalkanoate into trichloromethane, stirring until the polyhydroxyalkanoate is completely dissolved, adding the plant extract, and stirring until the plant extract is uniform to obtain an oil phase;

wherein the mass ratio of the polyhydroxyalkanoate to the plant extract to the trichloromethane is 1: 0.1-0.3: 6-12;

s3, weighing the water phase with the same volume as the oil phase, dropwise adding the water phase into the oil phase while stirring, and after dropwise adding, shearing and emulsifying for 0.5-1 h to obtain a mixed emulsion;

s4, weighing the water phase with the same volume as the mixed emulsion, slowly pouring the water phase into the mixed emulsion, uniformly mixing, heating to 60-70 ℃, stirring until all the trichloromethane is evaporated, filtering and collecting solids, washing with purified water for three times, and drying in vacuum to obtain the polyhydroxyalkanoate microspheres.

9. The gauze fabric prepared from fibers with the mosquito repelling function according to claim 5, wherein the specific steps of the step 4 are as follows:

weighing the polyester fiber activation treatment substance and the polyhydroxyalkanoate microspheres, adding the polyester fiber activation treatment substance and the polyhydroxyalkanoate microspheres into deionized water, performing ultrasonic dispersion treatment for 1-2 hours, heating to 80-100 ℃, performing reflux reaction for 5-8 hours, cooling to room temperature, filtering and collecting solids, washing with purified water for three times, and performing vacuum drying to obtain the fiber with the mosquito repelling function;

wherein the mass ratio of the polyester fiber activation treatment substance to the polyhydroxyalkanoate microspheres to the deionized water is 1: 0.2-0.8: 10-15.

10. A preparation process of a gauze fabric prepared from fibers with a mosquito repelling function according to any one of claims 1 to 9 is characterized by comprising the following steps:

(1) preparing warp yarns: weighing fibers with the mosquito repelling function, and spinning the fibers into warps through carding and spinning processes;

(2) preparing a weft yarn: weighing polyurethane fibers and cotton fibers according to the weight ratio of 6-8: 1, and spinning the polyurethane fibers and the cotton fibers into weft yarns through carding and blending processes;

(3) weaving the gauze fabric: weaving the prepared warp yarns and weft yarns into a gauze fabric by a weaving machine;

(4) dyeing: preparing dye in a dye vat according to the requirement, and immersing the knitted gauze fabric into the dye vat for dip dyeing;

(5) shaping: and (3) placing the dyed gauze fabric in a dryer, and drying and shaping at 80-100 ℃.

Technical Field

The invention relates to the field of gauze fabric, in particular to gauze fabric prepared from fibers with a mosquito repelling function and a preparation process thereof.

Background

In the four seasons, summer is the activity season of mosquitoes, particularly at night, various mosquito bites affect the healthy sleep of people, people are full of pain and itching caused by various mosquito bites, currently, people mostly use mosquito coils, various insecticides or floral water to prevent mosquitoes or treat bitten parts, but the mosquito coils contain anesthetic substances, insecticide chemical substances exceed the standard, and the effect of the floral water is not lasting and is easy to cause allergy. The indoor gauze has wide coverage area and long service time, has unique advantages and application potential as a textile with the function of repelling mosquitoes and the like when being developed, but the traditional gauze fabric is mainly used for preparing screen windows, mosquito nets and the like with the mosquito-repellent or decorative effect at present, rarely has the function of repelling mosquitoes at the same time, which is undoubtedly a great waste of resources, so that the development of the gauze fabric prepared by the fibers with the function of repelling mosquitoes is necessary and feasible.

Disclosure of Invention

Aiming at the problems, the invention provides the gauze fabric prepared from the fibers with the mosquito repelling function and the preparation process thereof, aiming at the defect that the traditional gauze fabric only has the mosquito repelling or decorating effect but has insufficient mosquito repelling effect.

In order to achieve the purpose, the invention provides the following technical scheme:

the invention aims to provide a gauze fabric prepared from fibers with a mosquito repelling function, which is woven by warp yarns and weft yarns; the warp yarns are obtained by spinning fibers with a mosquito repelling function; the weft yarns are obtained by blending polyurethane fibers and cotton fibers;

the fiber with the mosquito repelling function is prepared by taking polyester fiber as a framework material, polyhydroxyalkanoate microspheres as a reinforcing material and plant extracts as functional materials.

Preferably, in the weft yarns, the weight ratio of the polyurethane fibers to the cotton fibers is 6-8: 1.

Preferably, the polyhydroxyalkanoate is one or more of PHB, PHBV and PHBH.

Preferably, the polyester fiber is a porous polyester fiber.

Preferably, the plant extract is an effective substance extracted from artemisia leaves, artemisia annua and mint.

Preferably, the preparation method of the plant extract comprises the following steps:

s1, collecting dried folium artemisiae argyi, sweet wormwood herb and mint, cleaning the folium artemisiae argyi, sweet wormwood herb and mint by using purified water, drying the folium artemisiae argyi, sweet wormwood herb and mint at 50-70 ℃ for 2-5 hours, respectively grinding the folium artemisiae argyi, sweet wormwood herb and mint into powder, and sieving the powder by using a 50-100-mesh sieve to respectively obtain folium artemisiae argyi powder, sweet wormwood herb powder;

s2, weighing the folium artemisiae argyi powder, the sweet wormwood herb powder and the mint powder, adding the folium artemisiae argyi powder, the sweet wormwood herb powder and the mint powder into absolute ethyl alcohol, carrying out ultrasonic dispersion to be uniform, sealing, placing in a shade place for standing for 18-24 h, carrying out vacuum filtration to collect liquid, and carrying out rotary evaporation to remove a solvent to obtain a plant extract;

wherein the mass ratio of the folium artemisiae argyi powder, the sweet wormwood herb powder and the mint powder to the absolute ethyl alcohol is 1: 0.4-0.6: 0.5-0.8: 5-10.

Preferably, the preparation method of the fiber with the mosquito repelling function comprises the following steps:

step 1, etching polyester fiber: etching the polyester fiber by using alkali liquor to obtain a polyester fiber etching treatment object;

step 2, activating polyester fibers: activating the polyester fiber etching treatment object by using an activating agent to obtain a polyester fiber activation treatment object;

step 3, preparing polyhydroxyalkanoate microspheres: mixing polyhydroxyalkanoate and plant extracts to prepare polyhydroxyalkanoate microspheres;

step 4, preparing fibers with the mosquito repelling function: the fiber with the mosquito repelling function is prepared by compounding the polyester fiber activation treatment substance and polyhydroxyalkanoate microspheres.

Preferably, the activating agent in step 2 is diethylaminoethyl methacrylate.

Preferably, the specific steps of step 1 are:

weighing polyester fibers, adding the polyester fibers into a sodium hydroxide solution, carrying out ultrasonic treatment until the polyester fibers are uniform, heating to 80-100 ℃, carrying out reflux treatment for 0.5-2 h, cooling to room temperature, standing for 1-5 h, filtering and collecting solids, washing the solids to be neutral by using purified water, and carrying out vacuum drying to obtain an etched polyester fiber treatment product;

wherein the concentration of the sodium hydroxide solution is 0.1-1 mol/L; the mass ratio of the polyester fiber to the sodium hydroxide solution is 1: 10-20.

Preferably, the specific steps of step 2 are:

adding the polyester fiber etching treatment substance into deionized water, adding diethylaminoethyl methacrylate, stirring uniformly, soaking for 2-10 h, filtering, collecting solids, washing with purified water to neutrality, and vacuum drying to obtain the polyester fiber activation treatment substance;

wherein the mass ratio of the polyester fiber etching treatment product to the diethylaminoethyl methacrylate to the deionized water is 1: 0.2-0.6: 10-15.

Preferably, the specific steps of step 3 are:

s1, weighing ammonium zirconium carbonate, adding the ammonium zirconium carbonate into deionized water, adding Tween-80, and performing ultrasonic dispersion until the mixture is uniform to obtain a water phase;

wherein the mass ratio of the ammonium zirconium carbonate, the Tween-80 and the deionized water is 1: 0.2-0.4: 5-10;

s2, weighing polyhydroxyalkanoate, adding the polyhydroxyalkanoate into trichloromethane, stirring until the polyhydroxyalkanoate is completely dissolved, adding the plant extract, and stirring until the plant extract is uniform to obtain an oil phase;

wherein the mass ratio of the polyhydroxyalkanoate to the plant extract to the trichloromethane is 1: 0.1-0.3: 6-12;

s3, weighing the water phase with the same volume as the oil phase, dropwise adding the water phase into the oil phase while stirring, and after dropwise adding, shearing and emulsifying for 0.5-1 h to obtain a mixed emulsion;

s4, weighing the water phase with the same volume as the mixed emulsion, slowly pouring the water phase into the mixed emulsion, uniformly mixing, heating to 60-70 ℃, stirring until all the trichloromethane is evaporated, filtering and collecting solids, washing with purified water for three times, and drying in vacuum to obtain the polyhydroxyalkanoate microspheres.

Preferably, the specific steps of step 4 are:

weighing the polyester fiber activation treatment substance and the polyhydroxyalkanoate microspheres, adding the polyester fiber activation treatment substance and the polyhydroxyalkanoate microspheres into deionized water, performing ultrasonic dispersion treatment for 1-2 hours, heating to 80-100 ℃, performing reflux reaction for 5-8 hours, cooling to room temperature, filtering and collecting solids, washing with purified water for three times, and performing vacuum drying to obtain the fiber with the mosquito repelling function;

wherein the mass ratio of the polyester fiber activation treatment substance to the polyhydroxyalkanoate microspheres to the deionized water is 1: 0.2-0.8: 10-15.

The second purpose of the invention is to provide a preparation process of a gauze fabric prepared from fibers with a mosquito repelling function, which comprises the following steps:

(1) preparing warp yarns: weighing fibers with the mosquito repelling function, and spinning the fibers into warps through carding and spinning processes;

(2) preparing a weft yarn: weighing polyurethane fibers and cotton fibers according to the weight ratio of 6-8: 1, and spinning the polyurethane fibers and the cotton fibers into weft yarns through carding and blending processes;

(3) weaving the gauze fabric: weaving the prepared warp yarns and weft yarns into a gauze fabric by a weaving machine;

(4) dyeing: preparing dye in a dye vat according to the requirement, and immersing the knitted gauze fabric into the dye vat for dip dyeing;

(5) shaping: and (3) placing the dyed gauze fabric in a dryer, and drying and shaping at 80-100 ℃.

The invention has the beneficial effects that:

1. the invention provides a gauze fabric prepared from fibers with a mosquito repelling function, which is different from the conventional fabric, is particularly added with the fibers with the mosquito repelling function, and has the effects of preventing mosquitoes or decoration and stronger mosquito repelling effect. The material used in the invention is nontoxic and pollution-free, is easy to prepare, is suitable for being widely used indoors, has simple and convenient preparation process, is easy to operate, and is suitable for popularization and use.

2. Compared with the fabrics which are woven, dyed and finally treated by using the finishing agent in the market, the gauze fabric obtained by the treatment of the invention has the advantages that the functional type is on the internal fiber, so the gauze fabric is not easy to lose efficacy and can continuously exert the functionality.

3. According to the invention, the alkali liquor (sodium hydroxide solution) is used for etching the porous polyester fiber, so that more holes and grooves are formed on the surface of the polyester fiber, and the formed holes and grooves can be communicated with the porous polyester fiber, thereby the specific surface area is greatly enhanced, and the communication between the porous pore channel and the outside is also facilitated; and then, diethylaminoethyl methacrylate is used for activation, the diethylaminoethyl methacrylate has strong adhesion and contains more active groups, and after activation treatment, a large number of active groups are grafted on the surface of the etched porous polyester fiber and in the inner pore canal, so that a foundation is provided for subsequent adsorption and storage of the microspheres.

4. The polyhydroxyalkanoate microspheres prepared by the invention adopt polyhydroxyalkanoate as a microsphere frame structure, are natural biological high polymer materials, and have the advantages of sustainability, environmental friendliness, biocompatibility, heat resistance, hydrophobicity and the like, so that the prepared microspheres can be combined with polyester fibers more firmly after being compounded with the polyester fibers, and the heat resistance of the polyester fibers can be improved. In the preparation process of the polyhydroxyalkanoate microspheres, plant extracts with mosquito repelling effect extracted from folium artemisiae argyi, sweet wormwood herb and mint are added, so that the polyhydroxyalkanoate is finally used as a shell to coat the plant extracts to prepare the microspheres. A large amount of plant extracts adsorbed in the microspheres can be slowly released into the air, so that the mosquito repelling effect is achieved.

5. In addition, in the process of preparing the microspheres, ammonium zirconium carbonate is added into a water phase, and is gradually decomposed by heating in the subsequent preparation steps to generate gaseous ammonia and carbon dioxide, wherein the ammonia and the carbon dioxide can enable the microspheres to generate pores in the preparation process, so that the specific surface area of the microspheres is increased, and the mosquito repellent substance in the microspheres can have a larger contact area with the outside; the solid produced by its decomposition is present as a zirconium hydroxide polymer which can be further cross-linked with polyhydroxyalkanoate to act as a reinforcing anchoring agent for the microspheres. The invention uses the porous polyester fiber, the microspheres can enter through holes and grooves generated on the surface of the etched porous polyester fiber and are stored in a large number of pore channels of the porous polyester fiber, so that more mosquito repellent substances can be adsorbed, the mosquito repellent substances can be slowly released in the air through the holes on the surface of the porous polyester fiber, and the mosquito repellent effect can be longer.

Detailed Description

The invention is further described with reference to the following examples.

Example 1

A gauze fabric prepared from fibers with a mosquito repelling function is woven by warps and wefts; the warp yarns are obtained by spinning fibers with a mosquito repelling function; the weft yarns are obtained by blending polyurethane fibers and cotton fibers;

the fiber with the mosquito repelling function is prepared by taking polyester fiber as a framework material, polyhydroxyalkanoate microspheres as a reinforcing material and plant extracts as functional materials.

In the weft yarns, the weight ratio of the polyurethane fibers to the cotton fibers is 6-8: 1.

The polyhydroxyalkanoate is one or more of PHB, PHBV and PHBH.

The polyester fiber is porous polyester fiber.

The plant extract is effective substance extracted from folium Artemisiae Argyi, herba Artemisiae Annuae and herba Menthae.

The preparation method of the plant extract comprises the following steps:

s1, collecting dried folium artemisiae argyi, sweet wormwood herb and mint, cleaning the folium artemisiae argyi, sweet wormwood herb and mint by using purified water, drying the folium artemisiae argyi, sweet wormwood herb and mint at 50-70 ℃ for 2-5 hours, respectively grinding the folium artemisiae argyi, sweet wormwood herb and mint into powder, and sieving the powder by using a 50-100-mesh sieve to respectively obtain folium artemisiae argyi powder, sweet wormwood herb powder;

s2, weighing the folium artemisiae argyi powder, the sweet wormwood herb powder and the mint powder, adding the folium artemisiae argyi powder, the sweet wormwood herb powder and the mint powder into absolute ethyl alcohol, carrying out ultrasonic dispersion to be uniform, sealing, placing in a shade place for standing for 18-24 h, carrying out vacuum filtration to collect liquid, and carrying out rotary evaporation to remove a solvent to obtain a plant extract;

wherein the mass ratio of the folium artemisiae argyi powder, the sweet wormwood herb powder and the mint powder to the absolute ethyl alcohol is 1:0.5:0.6: 8.

The preparation method of the fiber with the mosquito repelling function comprises the following steps:

step 1, etching polyester fiber: etching the polyester fiber by using alkali liquor to obtain a polyester fiber etching treatment object;

step 2, activating polyester fibers: activating the polyester fiber etching treatment object by using an activating agent to obtain a polyester fiber activation treatment object;

step 3, preparing polyhydroxyalkanoate microspheres: mixing polyhydroxyalkanoate and plant extracts to prepare polyhydroxyalkanoate microspheres;

step 4, preparing fibers with the mosquito repelling function: the fiber with the mosquito repelling function is prepared by compounding the polyester fiber activation treatment substance and polyhydroxyalkanoate microspheres.

The activating agent in the step 2 is diethylaminoethyl methacrylate.

The specific steps of the step 1 are as follows:

weighing polyester fibers, adding the polyester fibers into a sodium hydroxide solution, carrying out ultrasonic treatment until the polyester fibers are uniform, heating to 80-100 ℃, carrying out reflux treatment for 0.5-2 h, cooling to room temperature, standing for 1-5 h, filtering and collecting solids, washing the solids to be neutral by using purified water, and carrying out vacuum drying to obtain an etched polyester fiber treatment product;

wherein the concentration of the sodium hydroxide solution is 0.5 mol/L; the mass ratio of the polyester fiber to the sodium hydroxide solution is 1: 15.

The specific steps of the step 2 are as follows:

adding the polyester fiber etching treatment substance into deionized water, adding diethylaminoethyl methacrylate, stirring uniformly, soaking for 2-10 h, filtering, collecting solids, washing with purified water to neutrality, and vacuum drying to obtain the polyester fiber activation treatment substance;

wherein the mass ratio of the polyester fiber etching treatment product to the diethylaminoethyl methacrylate to the deionized water is 1:0.4: 12.

The specific steps of the step 3 are as follows:

s1, weighing ammonium zirconium carbonate, adding the ammonium zirconium carbonate into deionized water, adding Tween-80, and performing ultrasonic dispersion until the mixture is uniform to obtain a water phase;

wherein the mass ratio of the ammonium zirconium carbonate, the Tween-80 and the deionized water is 1:0.3: 8;

s2, weighing polyhydroxyalkanoate, adding the polyhydroxyalkanoate into trichloromethane, stirring until the polyhydroxyalkanoate is completely dissolved, adding the plant extract, and stirring until the plant extract is uniform to obtain an oil phase;

wherein the mass ratio of the polyhydroxyalkanoate to the plant extract to the trichloromethane is 1:0.2: 8;

s3, weighing the water phase with the same volume as the oil phase, dropwise adding the water phase into the oil phase while stirring, and after dropwise adding, shearing and emulsifying for 0.5-1 h to obtain a mixed emulsion;

s4, weighing the water phase with the same volume as the mixed emulsion, slowly pouring the water phase into the mixed emulsion, uniformly mixing, heating to 60-70 ℃, stirring until all the trichloromethane is evaporated, filtering and collecting solids, washing with purified water for three times, and drying in vacuum to obtain the polyhydroxyalkanoate microspheres.

The specific steps of the step 4 are as follows:

weighing the polyester fiber activation treatment substance and the polyhydroxyalkanoate microspheres, adding the polyester fiber activation treatment substance and the polyhydroxyalkanoate microspheres into deionized water, performing ultrasonic dispersion treatment for 1-2 hours, heating to 80-100 ℃, performing reflux reaction for 5-8 hours, cooling to room temperature, filtering and collecting solids, washing with purified water for three times, and performing vacuum drying to obtain the fiber with the mosquito repelling function;

wherein the mass ratio of the polyester fiber activation treatment substance to the polyhydroxyalkanoate microspheres to the deionized water is 1:0.6: 12.

The preparation process of the gauze fabric prepared from the fibers with the mosquito repelling function comprises the following steps:

(1) preparing warp yarns: weighing fibers with the mosquito repelling function, and spinning the fibers into warps through carding and spinning processes;

(2) preparing a weft yarn: weighing polyurethane fibers and cotton fibers according to the weight ratio of 6-8: 1, and spinning the polyurethane fibers and the cotton fibers into weft yarns through carding and blending processes;

(3) weaving the gauze fabric: weaving the prepared warp yarns and weft yarns into a gauze fabric by a weaving machine;

(4) dyeing: preparing dye in a dye vat according to the requirement, and immersing the knitted gauze fabric into the dye vat for dip dyeing;

(5) shaping: and (3) placing the dyed gauze fabric in a dryer, and drying and shaping at 80-100 ℃.

Example 2

A gauze fabric prepared from fibers with a mosquito repelling function is woven by warps and wefts; the warp yarns are obtained by spinning fibers with a mosquito repelling function; the weft yarns are obtained by blending polyurethane fibers and cotton fibers;

the fiber with the mosquito repelling function is prepared by taking polyester fiber as a framework material, polyhydroxyalkanoate microspheres as a reinforcing material and plant extracts as functional materials.

In the weft yarns, the weight ratio of the polyurethane fibers to the cotton fibers is 6-8: 1.

The polyhydroxyalkanoate is one or more of PHB, PHBV and PHBH.

The polyester fiber is porous polyester fiber.

The plant extract is effective substance extracted from folium Artemisiae Argyi, herba Artemisiae Annuae and herba Menthae.

The preparation method of the plant extract comprises the following steps:

s1, collecting dried folium artemisiae argyi, sweet wormwood herb and mint, cleaning the folium artemisiae argyi, sweet wormwood herb and mint by using purified water, drying the folium artemisiae argyi, sweet wormwood herb and mint at 50-70 ℃ for 2-5 hours, respectively grinding the folium artemisiae argyi, sweet wormwood herb and mint into powder, and sieving the powder by using a 50-100-mesh sieve to respectively obtain folium artemisiae argyi powder, sweet wormwood herb powder;

s2, weighing the folium artemisiae argyi powder, the sweet wormwood herb powder and the mint powder, adding the folium artemisiae argyi powder, the sweet wormwood herb powder and the mint powder into absolute ethyl alcohol, carrying out ultrasonic dispersion to be uniform, sealing, placing in a shade place for standing for 18-24 h, carrying out vacuum filtration to collect liquid, and carrying out rotary evaporation to remove a solvent to obtain a plant extract;

wherein the mass ratio of the folium artemisiae argyi powder, the sweet wormwood herb powder and the mint powder to the absolute ethyl alcohol is 1:0.4:0.5: 5.

The preparation method of the fiber with the mosquito repelling function comprises the following steps:

step 1, etching polyester fiber: etching the polyester fiber by using alkali liquor to obtain a polyester fiber etching treatment object;

step 2, activating polyester fibers: activating the polyester fiber etching treatment object by using an activating agent to obtain a polyester fiber activation treatment object;

step 3, preparing polyhydroxyalkanoate microspheres: mixing polyhydroxyalkanoate and plant extracts to prepare polyhydroxyalkanoate microspheres;

step 4, preparing fibers with the mosquito repelling function: the fiber with the mosquito repelling function is prepared by compounding the polyester fiber activation treatment substance and polyhydroxyalkanoate microspheres.

The activating agent in the step 2 is diethylaminoethyl methacrylate.

The specific steps of the step 1 are as follows:

weighing polyester fibers, adding the polyester fibers into a sodium hydroxide solution, carrying out ultrasonic treatment until the polyester fibers are uniform, heating to 80-100 ℃, carrying out reflux treatment for 0.5-2 h, cooling to room temperature, standing for 1-5 h, filtering and collecting solids, washing the solids to be neutral by using purified water, and carrying out vacuum drying to obtain an etched polyester fiber treatment product;

wherein the concentration of the sodium hydroxide solution is 0.1 mol/L; the mass ratio of the polyester fiber to the sodium hydroxide solution is 1: 10.

The specific steps of the step 2 are as follows:

adding the polyester fiber etching treatment substance into deionized water, adding diethylaminoethyl methacrylate, stirring uniformly, soaking for 2-10 h, filtering, collecting solids, washing with purified water to neutrality, and vacuum drying to obtain the polyester fiber activation treatment substance;

wherein the mass ratio of the polyester fiber etching treatment product to the diethylaminoethyl methacrylate to the deionized water is 1:0.2: 10.

The specific steps of the step 3 are as follows:

s1, weighing ammonium zirconium carbonate, adding the ammonium zirconium carbonate into deionized water, adding Tween-80, and performing ultrasonic dispersion until the mixture is uniform to obtain a water phase;

wherein the mass ratio of the ammonium zirconium carbonate, the Tween-80 and the deionized water is 1:0.2: 5;

s2, weighing polyhydroxyalkanoate, adding the polyhydroxyalkanoate into trichloromethane, stirring until the polyhydroxyalkanoate is completely dissolved, adding the plant extract, and stirring until the plant extract is uniform to obtain an oil phase;

wherein the mass ratio of the polyhydroxyalkanoate to the plant extract to the trichloromethane is 1:0.1: 6;

s3, weighing the water phase with the same volume as the oil phase, dropwise adding the water phase into the oil phase while stirring, and after dropwise adding, shearing and emulsifying for 0.5-1 h to obtain a mixed emulsion;

s4, weighing the water phase with the same volume as the mixed emulsion, slowly pouring the water phase into the mixed emulsion, uniformly mixing, heating to 60-70 ℃, stirring until all the trichloromethane is evaporated, filtering and collecting solids, washing with purified water for three times, and drying in vacuum to obtain the polyhydroxyalkanoate microspheres.

The specific steps of the step 4 are as follows:

weighing the polyester fiber activation treatment substance and the polyhydroxyalkanoate microspheres, adding the polyester fiber activation treatment substance and the polyhydroxyalkanoate microspheres into deionized water, performing ultrasonic dispersion treatment for 1-2 hours, heating to 80-100 ℃, performing reflux reaction for 5-8 hours, cooling to room temperature, filtering and collecting solids, washing with purified water for three times, and performing vacuum drying to obtain the fiber with the mosquito repelling function;

wherein the mass ratio of the polyester fiber activation treatment substance to the polyhydroxyalkanoate microspheres to the deionized water is 1:0.2: 10.

The preparation process of the gauze fabric prepared from the fibers with the mosquito repelling function comprises the following steps:

(1) preparing warp yarns: weighing fibers with the mosquito repelling function, and spinning the fibers into warps through carding and spinning processes;

(2) preparing a weft yarn: weighing polyurethane fibers and cotton fibers according to the weight ratio of 6-8: 1, and spinning the polyurethane fibers and the cotton fibers into weft yarns through carding and blending processes;

(3) weaving the gauze fabric: weaving the prepared warp yarns and weft yarns into a gauze fabric by a weaving machine;

(4) dyeing: preparing dye in a dye vat according to the requirement, and immersing the knitted gauze fabric into the dye vat for dip dyeing;

(5) shaping: and (3) placing the dyed gauze fabric in a dryer, and drying and shaping at 80-100 ℃.

Example 3

A gauze fabric prepared from fibers with a mosquito repelling function is woven by warps and wefts; the warp yarns are obtained by spinning fibers with a mosquito repelling function; the weft yarns are obtained by blending polyurethane fibers and cotton fibers;

the fiber with the mosquito repelling function is prepared by taking polyester fiber as a framework material, polyhydroxyalkanoate microspheres as a reinforcing material and plant extracts as functional materials.

In the weft yarns, the weight ratio of the polyurethane fibers to the cotton fibers is 6-8: 1.

The polyhydroxyalkanoate is one or more of PHB, PHBV and PHBH.

The polyester fiber is porous polyester fiber.

The plant extract is effective substance extracted from folium Artemisiae Argyi, herba Artemisiae Annuae and herba Menthae.

The preparation method of the plant extract comprises the following steps:

s1, collecting dried folium artemisiae argyi, sweet wormwood herb and mint, cleaning the folium artemisiae argyi, sweet wormwood herb and mint by using purified water, drying the folium artemisiae argyi, sweet wormwood herb and mint at 50-70 ℃ for 2-5 hours, respectively grinding the folium artemisiae argyi, sweet wormwood herb and mint into powder, and sieving the powder by using a 50-100-mesh sieve to respectively obtain folium artemisiae argyi powder, sweet wormwood herb powder;

s2, weighing the folium artemisiae argyi powder, the sweet wormwood herb powder and the mint powder, adding the folium artemisiae argyi powder, the sweet wormwood herb powder and the mint powder into absolute ethyl alcohol, carrying out ultrasonic dispersion to be uniform, sealing, placing in a shade place for standing for 18-24 h, carrying out vacuum filtration to collect liquid, and carrying out rotary evaporation to remove a solvent to obtain a plant extract;

wherein the mass ratio of the folium artemisiae argyi powder, the sweet wormwood herb powder and the mint powder to the absolute ethyl alcohol is 1:0.6:0.8: 10.

The preparation method of the fiber with the mosquito repelling function comprises the following steps:

step 1, etching polyester fiber: etching the polyester fiber by using alkali liquor to obtain a polyester fiber etching treatment object;

step 2, activating polyester fibers: activating the polyester fiber etching treatment object by using an activating agent to obtain a polyester fiber activation treatment object;

step 3, preparing polyhydroxyalkanoate microspheres: mixing polyhydroxyalkanoate and plant extracts to prepare polyhydroxyalkanoate microspheres;

step 4, preparing fibers with the mosquito repelling function: the fiber with the mosquito repelling function is prepared by compounding the polyester fiber activation treatment substance and polyhydroxyalkanoate microspheres.

The activating agent in the step 2 is diethylaminoethyl methacrylate.

The specific steps of the step 1 are as follows:

weighing polyester fibers, adding the polyester fibers into a sodium hydroxide solution, carrying out ultrasonic treatment until the polyester fibers are uniform, heating to 80-100 ℃, carrying out reflux treatment for 0.5-2 h, cooling to room temperature, standing for 1-5 h, filtering and collecting solids, washing the solids to be neutral by using purified water, and carrying out vacuum drying to obtain an etched polyester fiber treatment product;

wherein the concentration of the sodium hydroxide solution is 1 mol/L; the mass ratio of the polyester fiber to the sodium hydroxide solution is 1: 20.

The specific steps of the step 2 are as follows:

adding the polyester fiber etching treatment substance into deionized water, adding diethylaminoethyl methacrylate, stirring uniformly, soaking for 2-10 h, filtering, collecting solids, washing with purified water to neutrality, and vacuum drying to obtain the polyester fiber activation treatment substance;

wherein the mass ratio of the polyester fiber etching treatment product to the diethylaminoethyl methacrylate to the deionized water is 1:0.6: 15.

The specific steps of the step 3 are as follows:

s1, weighing ammonium zirconium carbonate, adding the ammonium zirconium carbonate into deionized water, adding Tween-80, and performing ultrasonic dispersion until the mixture is uniform to obtain a water phase;

wherein the mass ratio of the ammonium zirconium carbonate, the Tween-80 and the deionized water is 1:0.4: 10;

s2, weighing polyhydroxyalkanoate, adding the polyhydroxyalkanoate into trichloromethane, stirring until the polyhydroxyalkanoate is completely dissolved, adding the plant extract, and stirring until the plant extract is uniform to obtain an oil phase;

wherein the mass ratio of the polyhydroxyalkanoate to the plant extract to the trichloromethane is 1:0.3: 12;

s3, weighing the water phase with the same volume as the oil phase, dropwise adding the water phase into the oil phase while stirring, and after dropwise adding, shearing and emulsifying for 0.5-1 h to obtain a mixed emulsion;

s4, weighing the water phase with the same volume as the mixed emulsion, slowly pouring the water phase into the mixed emulsion, uniformly mixing, heating to 60-70 ℃, stirring until all the trichloromethane is evaporated, filtering and collecting solids, washing with purified water for three times, and drying in vacuum to obtain the polyhydroxyalkanoate microspheres.

The specific steps of the step 4 are as follows:

weighing the polyester fiber activation treatment substance and the polyhydroxyalkanoate microspheres, adding the polyester fiber activation treatment substance and the polyhydroxyalkanoate microspheres into deionized water, performing ultrasonic dispersion treatment for 1-2 hours, heating to 80-100 ℃, performing reflux reaction for 5-8 hours, cooling to room temperature, filtering and collecting solids, washing with purified water for three times, and performing vacuum drying to obtain the fiber with the mosquito repelling function;

wherein the mass ratio of the polyester fiber activation treatment substance to the polyhydroxyalkanoate microspheres to the deionized water is 1:0.8: 15.

The preparation process of the gauze fabric prepared from the fibers with the mosquito repelling function comprises the following steps:

(1) preparing warp yarns: weighing fibers with the mosquito repelling function, and spinning the fibers into warps through carding and spinning processes;

(2) preparing a weft yarn: weighing polyurethane fibers and cotton fibers according to the weight ratio of 6-8: 1, and spinning the polyurethane fibers and the cotton fibers into weft yarns through carding and blending processes;

(3) weaving the gauze fabric: weaving the prepared warp yarns and weft yarns into a gauze fabric by a weaving machine;

(4) dyeing: preparing dye in a dye vat according to the requirement, and immersing the knitted gauze fabric into the dye vat for dip dyeing;

(5) shaping: and (3) placing the dyed gauze fabric in a dryer, and drying and shaping at 80-100 ℃.

Comparative example

A gauze fabric prepared from fibers with a mosquito repelling function is woven by warps and wefts; the warp yarns are obtained by spinning fibers with a mosquito repelling function; the weft yarns are obtained by blending polyurethane fibers and cotton fibers;

the fiber with the mosquito repelling function is prepared by taking polyester fiber as a framework material, polyhydroxyalkanoate microspheres as a reinforcing material and plant extracts as functional materials.

In the weft yarns, the weight ratio of the polyurethane fibers to the cotton fibers is 6-8: 1.

The polyhydroxyalkanoate is one or more of PHB, PHBV and PHBH.

The polyester fiber is porous polyester fiber.

The plant extract is effective substance extracted from folium Artemisiae Argyi, herba Artemisiae Annuae and herba Menthae.

The preparation method of the plant extract comprises the following steps:

s1, collecting dried folium artemisiae argyi, sweet wormwood herb and mint, cleaning the folium artemisiae argyi, sweet wormwood herb and mint by using purified water, drying the folium artemisiae argyi, sweet wormwood herb and mint at 50-70 ℃ for 2-5 hours, respectively grinding the folium artemisiae argyi, sweet wormwood herb and mint into powder, and sieving the powder by using a 50-100-mesh sieve to respectively obtain folium artemisiae argyi powder, sweet wormwood herb powder;

s2, weighing the folium artemisiae argyi powder, the sweet wormwood herb powder and the mint powder, adding the folium artemisiae argyi powder, the sweet wormwood herb powder and the mint powder into absolute ethyl alcohol, carrying out ultrasonic dispersion to be uniform, sealing, placing in a shade place for standing for 18-24 h, carrying out vacuum filtration to collect liquid, and carrying out rotary evaporation to remove a solvent to obtain a plant extract;

wherein the mass ratio of the folium artemisiae argyi powder, the sweet wormwood herb powder and the mint powder to the absolute ethyl alcohol is 1:0.5:0.6: 8.

The preparation method of the fiber with the mosquito repelling function comprises the following steps:

weighing polyester fibers and the plant extract, adding the polyester fibers and the plant extract into deionized water, performing ultrasonic dispersion treatment for 1-2 hours, heating to 80-100 ℃, performing reflux reaction for 5-8 hours, cooling to room temperature, filtering to collect solids, washing with purified water for three times, and performing vacuum drying to obtain the fibers with the mosquito repelling function;

wherein the mass ratio of the polyester fiber activation treatment substance to the plant extract to the deionized water is 1:0.6: 12.

The preparation process of the gauze fabric prepared from the fibers with the mosquito repelling function comprises the following steps:

(1) preparing warp yarns: weighing fibers with the mosquito repelling function, and spinning the fibers into warps through carding and spinning processes;

(2) preparing a weft yarn: weighing polyurethane fibers and cotton fibers according to the weight ratio of 6-8: 1, and spinning the polyurethane fibers and the cotton fibers into weft yarns through carding and blending processes;

(3) weaving the gauze fabric: weaving the prepared warp yarns and weft yarns into a gauze fabric by a weaving machine;

(4) dyeing: preparing dye in a dye vat according to the requirement, and immersing the knitted gauze fabric into the dye vat for dip dyeing;

(5) shaping: and (3) placing the dyed gauze fabric in a dryer, and drying and shaping at 80-100 ℃.

In order to illustrate the present invention more clearly, the performance of the gauze fabrics prepared in the examples 1 to 3 of the present invention and the comparative example was tested, and the results are shown in table 1:

the mosquito repelling performance of the fabric is detected according to the standard GB/T30126-2013; the water washing resistance (the mosquito repellent rate after washing) refers to the mosquito repellent rate of the fabric washed for 30 times according to the GB/T12490-2007 standard; lasting mosquito repelling (the mosquito repelling rate after 30 days) the mosquito repelling rate after 30 days is achieved by placing the fabric which is not washed with water in an environment with the temperature of 25 ℃ and the humidity of 50%.

TABLE 1 comparison of the Properties of different gauze fabrics

	Example 1	Example 2	Example 3	Comparative example
					Mosquito repelling rate/%	100	100	100	100
Mosquito repelling rate after washing%	94	93	94	65
					Mosquito repelling rate after 30 days%	97	95	96	72

As can be seen from Table 1, the gauze fabric prepared in the embodiments 1-3 of the invention has high mosquito repelling rate, good water washing resistance and long-term mosquito repelling property.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.