CN112779644B - Temperature-adjusting antibacterial mosquito-proof yarn and fabric and preparation method thereof - Google Patents
Temperature-adjusting antibacterial mosquito-proof yarn and fabric and preparation method thereof Download PDFInfo
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- CN112779644B CN112779644B CN202011555761.5A CN202011555761A CN112779644B CN 112779644 B CN112779644 B CN 112779644B CN 202011555761 A CN202011555761 A CN 202011555761A CN 112779644 B CN112779644 B CN 112779644B
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/06—Wet spinning methods
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/50—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyalcohols, polyacetals or polyketals
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C7/00—Heating or cooling textile fabrics
- D06C7/02—Setting
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Abstract
The invention discloses a temperature-adjusting antibacterial mosquito-proof yarn, a fabric and a preparation method thereof, wherein the temperature-adjusting antibacterial mosquito-proof yarn comprises the following components: the core yarn is a water-soluble anti-mosquito filament, and anti-mosquito microcapsules distributed in a sea island shape are arranged inside and on the surface of the core yarn; the cladding fiber is prepared by mixing phase-change temperature-adjusting fiber and antibacterial polyester fiber and is spirally wound and cladded on the outer surface of the core yarn; wherein the mass percentage content of the core yarn is 20-30%, and the balance is the cladding fiber. The invention realizes the multifunctional composition of temperature regulation, antibiosis, deodorization, mosquito prevention and the like, and simultaneously realizes the controllable slow release effect of the mosquito-proof active ingredients, thereby effectively improving the mosquito-proof effect of the mosquito-proof fabric, and the mosquito-proof effect is long enough.
Description
Technical Field
The invention relates to the technical field of textiles, in particular to a temperature-adjusting antibacterial mosquito-proof yarn, a temperature-adjusting antibacterial mosquito-proof fabric and a preparation method thereof.
Background
At present, the garment fabric of people mainly takes all cotton and polyester cotton blended fabric as main materials. When people feel hot in weather or do sports, the sweat amount of people is large, clothes stained with sweat and human secretion can not only cause discomfort, but also can generate peculiar smell and stink, and most importantly, the damp and hot environment can accelerate bacterial growth and is susceptible to skin infectious diseases. Meanwhile, the existing clothes do not have the function of adjusting the temperature, so that the change of the temperature of the external environment cannot be sensed to make corresponding reaction on the skin, the buffer effect on the temperature change is realized, and people can feel uncomfortable in a hot or cold environment. In addition, people can be suffered from mosquito harassment in summer, people feel uncomfortable and have itching due to mosquito bites, and diseases such as malaria, filariasis, epidemic encephalitis B, dengue fever and the like are more serious.
In view of the above disadvantages of the conventional fabric for clothes and the increasing demands of people on the comfort and functionality of clothes, the existing fabric for making clothes cannot meet the demands of people.
It is noted that this section is intended to provide a background or context to the embodiments of the disclosure that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.
Disclosure of Invention
The embodiment of the invention provides a temperature-adjusting antibacterial mosquito-proof yarn, a temperature-adjusting antibacterial mosquito-proof fabric and a preparation method thereof, and aims to solve the problem that the fabric used for manufacturing clothes in the prior art does not have the functions of temperature adjustment, antibiosis, deodorization, mosquito prevention and the like.
In a first aspect, an embodiment of the present invention provides a temperature-adjusting antibacterial mosquito-proof yarn, including:
the core yarn is a water-soluble anti-mosquito filament, and anti-mosquito microcapsules distributed in a sea island shape are arranged inside and on the surface of the core yarn;
the cladding fiber is prepared by mixing phase-change temperature-adjusting fiber and antibacterial polyester fiber and is spirally wound and cladded on the outer surface of the core yarn;
wherein the mass percentage content of the core yarn is 20-30%, and the balance is the coating fiber.
As a preferable mode of the first aspect of the present invention, the water-soluble mosquito-proof filament is made of the following raw materials by mass: 12-18% of polyvinyl alcohol, 8-14% of anti-mosquito microcapsules, 1-3% of a cross-linking agent and the balance of water;
the water-soluble mosquito-proof filament has the water-soluble temperature of 20-60 ℃.
In a preferred aspect of the first aspect of the present invention, the polyvinyl alcohol has a polymerization degree of 1000 to 1800 and an alcoholysis degree of 60 to 90%;
the cross-linking agent is carbamide.
In a preferred embodiment of the first aspect of the present invention, the mass ratio of the phase-change thermoregulation fiber to the antibacterial polyester fiber is 1: 1.
In a second aspect, an embodiment of the present invention provides a temperature-adjusting antibacterial mosquito-proof fabric, which is spun from the temperature-adjusting antibacterial mosquito-proof yarn according to any one of the first aspect and the preferred embodiments thereof, and has a mass per square meter of 150 to 170g/m2；
The temperature-adjusting antibacterial mosquito-proof yarn is a single yarn, and the linear density of the temperature-adjusting antibacterial mosquito-proof yarn is 23.6-29.5 tex.
In a third aspect, the embodiment of the invention provides a preparation method of a temperature-adjusting antibacterial mosquito-proof fabric, which comprises the following steps:
mixing polyvinyl alcohol with water, stirring for a period of time until the polyvinyl alcohol is dissolved, adding the mosquito-proof microcapsule and the cross-linking agent, and stirring again to obtain a water-soluble mosquito-proof polyvinyl alcohol spinning solution;
defoaming the water-soluble mosquito-proof polyvinyl alcohol spinning solution, conveying the solution to wet spinning equipment, spraying the solution through a spinning nozzle under the pressure of nitrogen, and forming the solution through a coagulating bath and a water washing bath to obtain nascent fiber filaments;
sequentially carrying out hot drawing, oiling, drying, winding and packaging on the as-spun fiber filaments to obtain water-soluble mosquito-proof filaments, wherein the water-soluble temperature of the water-soluble mosquito-proof filaments is 20-60 ℃;
taking the water-soluble mosquito-proof filament as a core yarn, and coating the outer surface of the core yarn with a coating fiber prepared by mixing phase-change temperature-adjusting fiber and antibacterial polyester fiber in a mass ratio of 1:1 to obtain a temperature-adjusting antibacterial mosquito-proof yarn; wherein the mass percentage content of the core yarn is 20-30%;
sequentially carrying out warping, denting, weaving and cloth repairing finishing on the temperature-adjusting antibacterial mosquito-proof yarn to obtain a grey fabric;
the grey fabric is sequentially subjected to washing, tentering, dry setting, preshrinking and rolling to obtain the temperature-adjusting antibacterial mosquito-proof fabric with the square meter mass of 150-170 g/m2。
In a preferred mode of the third aspect of the invention, in the step of obtaining the water-soluble mosquito-proof polyvinyl alcohol spinning solution, the mass percentage content of the polyvinyl alcohol is 12-18%, the mass percentage content of the mosquito-proof microcapsule is 8-14%, the mass percentage content of the cross-linking agent is 1-3%, and the balance is water;
the polymerization degree of the polyvinyl alcohol is 1000-1800, and the alcoholysis degree of the polyvinyl alcohol is 60-90%; the cross-linking agent is carbamide;
the reaction temperature of the mixed polyvinyl alcohol and water is 80-95 ℃, the mixture is stirred for 3-5 hours at the stirring speed of 200-400 r/min, and the mosquito-proof microcapsules and the cross-linking agent are added and then stirred for 0.5-1 hour.
In a preferred mode of the third aspect of the present invention, in the step of obtaining the as-spun fiber filament, the temperature of the heat preservation water in the wet spinning equipment is 90 to 95 ℃, the water-soluble mosquito-proof polyvinyl alcohol spinning solution passes through the metering pump and the filter screen in sequence and then is sprayed out through the spinneret, and the aperture of the spinneret is 0.05 to 0.12 mm.
In a preferred mode of the third aspect of the present invention, in the step of obtaining the as-spun fiber filament, the as-spun fiber filament is formed by spraying the water-soluble mosquito-proof polyvinyl alcohol spinning dope through a spinneret and then passing the spinning dope through the coagulation bath, wherein the coagulation bath is a mixed solution of 25 to 35 mass% of sodium sulfate and 1 to 3 mass% of glycerin, the temperature of the mixed solution is 10 to 50 ℃, and the temperature of the coagulation bath is always lower than the water-soluble temperature of the water-soluble mosquito-proof filament by 5 to 10 ℃;
and removing surface residues of the as-spun fiber filaments by the water bath, wherein the water bath is a barium chloride solution with the mass fraction of 2-4%, and the temperature is 5-15 ℃.
In a preferred embodiment of the third aspect of the present invention, in the step of obtaining the temperature-controlled antibacterial mosquito-repellent fabric, the temperature of the water washing operation is 40 to 80 ℃, and the temperature of the tentering dry-setting operation is 150 to 170 ℃.
According to the temperature-regulating antibacterial mosquito-proof yarn and fabric and the preparation method thereof provided by the embodiment of the invention, by referring to a core-spun yarn structure model, the core yarn adopts self-made water-soluble mosquito-proof functional filament, and the outer-side coating fiber is prepared by mixing the phase-change temperature-regulating fiber and the antibacterial polyester fiber, so that the functions of intelligent temperature regulation, antibacterial deodorization, mosquito prevention and the like are effectively combined, and the use requirements of people are met.
Meanwhile, the water-soluble anti-mosquito filament is distributed with the anti-mosquito microcapsules in a sea-island manner, the binding force between the anti-mosquito microcapsules and fibers is improved, and meanwhile, the water-soluble polyvinyl alcohol matrix is gradually dissolved in the fabric printing and dyeing processing or subsequent washing and using process, so that the anti-mosquito microcapsules continuously volatilize anti-mosquito active ingredients through a slow release effect, the anti-mosquito function of the fabric is delayed, and the service cycle of the anti-mosquito functional textile is effectively prolonged.
The invention realizes the multifunctional composition of temperature regulation, antibiosis, deodorization, mosquito prevention and the like, and simultaneously realizes the controllable slow release effect of the mosquito-proof active ingredients, thereby effectively improving the mosquito-proof effect of the mosquito-proof fabric, and the mosquito-proof effect is long enough.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic longitudinal structure diagram of a temperature-adjusting antibacterial mosquito-proof yarn provided by an embodiment of the invention;
fig. 2 is a schematic transverse structure diagram of a temperature-adjusting antibacterial mosquito-proof yarn provided by the embodiment of the invention;
fig. 3 is a flow chart of an implementation of the method for preparing the temperature-adjusting antibacterial mosquito-proof fabric according to the embodiment of the invention.
Wherein, the mosquito-proof microcapsule comprises 10 parts of core yarn, 11 parts of mosquito-proof microcapsule and 20 parts of coating fiber.
Detailed Description
In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
Referring to fig. 1 and 2, the embodiment of the invention discloses a temperature-adjusting antibacterial mosquito-proof yarn, which mainly comprises:
a core yarn 10, wherein the core yarn 10 is a water-soluble anti-mosquito filament, and anti-mosquito microcapsules 11 distributed in a sea-island manner are arranged inside and on the surface of the core yarn 10;
the covering fiber 20 is prepared by mixing phase-change temperature-adjusting fiber and antibacterial polyester fiber, and is spirally wound and covered on the outer surface of the core yarn 10;
wherein, the mass percentage content of the core yarn 10 is 20-30%, and the rest is the cladding fiber 20.
In the embodiment, the temperature-regulating antibacterial mosquito-proof yarn provided by the invention starts from fiber raw materials and a yarn structure, self-made water-soluble mosquito-proof filaments, preferably phase-change temperature-regulating fibers and antibacterial polyester fibers, and takes the water-soluble mosquito-proof filaments as core yarns, and mixes the phase-change temperature-regulating fibers and the antibacterial polyester fibers to be taken as cladding fibers, so that the temperature-regulating antibacterial function is exerted, and the yarn structure of the core-spun yarn is formed, so that the functions of intelligent temperature regulation, antibacterial deodorization, mosquito prevention and the like are effectively combined.
Preferably, the matrix of the water-soluble mosquito-proof filament is water-soluble polyvinyl alcohol, and mosquito-proof microcapsules distributed in a sea-island manner are arranged in the matrix and on the surface of the matrix. This kind of design creativity uses the mosquito-proof long filament of water-soluble as the carrier, will transport to the internal portion of yarn at the mosquito-proof microcapsule of the mosquito-proof long filament mediumo island type distribution of water-soluble, when promoting cohesion between mosquito-proof microcapsule and the fibre, water-soluble polyvinyl alcohol base member can dissolve gradually in fabric printing and dyeing processing or follow-up washing use for mosquito-proof microcapsule constantly volatilizes mosquito-proof active ingredient through slow-release effect, thereby delay the mosquito-proof function of fabric, effectively prolonged the life cycle of mosquito-proof functional fabrics.
In the present embodiment, the mosquito-repellent microcapsules in the prior art are used, and the main component of the mosquito-repellent microcapsules is a plant extract with a mosquito-repellent effect.
In addition, the phase-change melting point of the phase-change temperature-adjusting fiber adopted in the coating fiber is about 32 ℃, when the external environment temperature is higher than 32 ℃, the phase-change material contained in the phase-change temperature-adjusting fiber is subjected to phase change and is changed from a solid state to a liquid state, and the absorbed heat is stored in the fiber; when the temperature of the external environment is lower than 32 ℃, the phase-change material is changed from a liquid state to a solid state, and the stored heat is released.
Therefore, when the fabric prepared from the temperature-adjusting antibacterial mosquito-proof yarn is antibacterial and deodorant, efficient heat management can be performed on human skin through the mode of continuously absorbing and releasing heat, a comfortable temperature/heat microclimate with the heat and the cold can be created for a human body, the temperature can be maintained at 30-33 ℃, the release time of the mosquito-proof agent is prolonged, the mosquito-proof effect is more lasting and effective, and the problem that the performance of the functional fabric is reduced due to water washing is solved.
In an optional embodiment provided by the application, the water-soluble mosquito-proof filament is prepared from the following raw materials in percentage by mass: 12-18% of polyvinyl alcohol, 8-14% of anti-mosquito microcapsules, 1-3% of a cross-linking agent and the balance of water; the water-soluble mosquito-proof filament has a water-soluble temperature of 20-60 ℃.
Specifically, due to the rheological property of the spinning solution for preparing the water-soluble mosquito-proof filament, the spinnability of the water-soluble mosquito-proof filament and the structure and performance of the finished filament are directly influenced.
In the embodiment, the mass percent content of the polyvinyl alcohol is set to be 12-18%, and the mass percent content of the anti-mosquito microcapsules is set to be 8-14%, because if the mass percent content of the polyvinyl alcohol and the mass percent content of the anti-mosquito microcapsules are too low, the viscosity of the spinning solution is low, overflow flow is easy to occur at a spinneret orifice during preparation, superfine spinning flow cannot be formed, and further the spinning continuity is influenced, and meanwhile, if the mass percent content of the anti-mosquito microcapsules is too low, the anti-mosquito function is difficult to realize; however, if the content of the both components is too high, the viscosity of the spinning solution becomes high, and the spinneret holes are clogged, resulting in difficulty in spinning.
Meanwhile, 1-3% of cross-linking agent is added, so that a firm cross-linking structure can be formed between the wall material of the mosquito-proof microcapsule and the polyvinyl alcohol molecular chain, the mosquito-proof microcapsule and the polyvinyl alcohol are cross-linked into a whole, and the mechanical property of the water-soluble mosquito-proof filament is improved.
In conclusion, the water-soluble mosquito-proof filament can achieve a certain technical effect by adopting the raw material proportion, and the water-soluble mosquito-proof filament obtained by adopting the raw material proportion has the water-soluble temperature of 20-60 ℃ and is convenient to dissolve.
In an optional embodiment provided by the present application, the polymerization degree of the polyvinyl alcohol is 1000 to 1800, and the alcoholysis degree is 60 to 90%; the cross-linking agent is carbamide.
Specifically, by adopting the polyvinyl alcohol with the polymerization degree and the alcoholysis degree and the cross-linking agent, the nano-scale mosquito-proof microcapsule can be applied to the polyvinyl alcohol fiber and fully enters gaps and amorphous areas of a polyvinyl alcohol matrix, a three-dimensional network cross-linking structure similar to network interpenetrating is formed between molecules, a firm cross-linking structure can be formed between the nano-scale mosquito-proof microcapsule and a polyvinyl alcohol molecular chain, the content of the nano-scale mosquito-proof microcapsule in the polyvinyl alcohol matrix can be increased, the controllability of mosquito-proof effective components is improved, and the effect of slow release is achieved.
In an optional embodiment provided by the application, the mass ratio of the phase-change temperature-adjusting fiber to the antibacterial polyester fiber is 1: 1.
Specifically, the mass ratio of the phase-change temperature-regulating fibers to the antibacterial polyester fibers is set to be 1:1, the coating fibers in the whole yarn structure can reach 80% at most, and when the mass ratio of the phase-change temperature-regulating fibers to the antibacterial polyester fibers is 1:1, the mass ratio of the phase-change temperature-regulating fibers to the antibacterial polyester fibers in the whole yarn is 40% respectively, the setting of the mass ratio can ensure that the fabric has the temperature regulating and antibacterial functions, meanwhile, the mechanical property of the yarn is excellent, the spinning and weaving difficulty is reduced, and the mechanical index of the fabric is improved.
In conclusion, the invention realizes the multifunctional composition of temperature regulation, antibiosis, deodorization, mosquito prevention and the like, and simultaneously realizes the controllable slow release effect of the mosquito-proof active ingredients, thereby effectively improving the mosquito-proof effect of the mosquito-proof fabric, and the mosquito-proof effect is long enough.
Based on the same invention concept, the embodiment of the invention also provides a temperature-adjusting antibacterial mosquito-proof fabric which is spun by the temperature-adjusting antibacterial mosquito-proof yarn in any one of the embodiments and optional embodiments, and the square meter mass of the fabric is 150-170 g/m2；
The temperature-adjusting antibacterial mosquito-proof yarn is a single yarn, and the linear density of the temperature-adjusting antibacterial mosquito-proof yarn is 23.6-29.5 tex.
In the embodiment, the temperature-adjusting antibacterial mosquito-proof fabric is formed by spinning the temperature-adjusting antibacterial mosquito-proof yarns in the embodiment, and the square meter mass of the fabric is 150-170 g/m2Therefore, when the fabric is applied to summer clothing, the fabric also has the advantage of being light and thin.
Meanwhile, the temperature-adjusting antibacterial mosquito-proof yarn for preparing the fabric is a single yarn, and the linear density of the temperature-adjusting antibacterial mosquito-proof yarn is 23.6-29.5 tex. The linear density is determined according to the mass of the fabric in square meters, and the arrangement of the warp and weft density, the spinning and the weaving difficulty are combined.
In the process of printing and dyeing or subsequent washing and use of the fabric, the water-soluble polyvinyl alcohol matrix in the core yarn of the temperature-regulating antibacterial mosquito-proof yarn is gradually dissolved, so that the mosquito-proof microcapsule continuously volatilizes mosquito-proof active ingredients through a slow-release effect, and the mosquito-proof function of the fabric is delayed.
Meanwhile, the phase-change temperature-adjusting fibers and the antibacterial polyester fibers in the wrapping fibers of the temperature-adjusting antibacterial mosquito-proof yarn can play the functions of temperature adjustment and antibiosis. Therefore, the temperature-adjusting antibacterial mosquito-proof fabric can perform efficient heat management on human skin through the mode of continuously absorbing and releasing heat while performing antibacterial deodorization, so that a comfortable temperature/heat microclimate with known temperature and heat is created for a human body, the temperature can be maintained at 30-33 ℃, the release time of a mosquito-proof agent is delayed, the mosquito-proof effect is more lasting and effective, and the problem of performance reduction of a functional fabric due to washing is solved.
In conclusion, the invention realizes the multifunctional composition of temperature regulation, antibiosis, deodorization, mosquito prevention and the like, and simultaneously realizes the controllable slow release effect of the mosquito-proof active ingredients, thereby effectively improving the mosquito-proof effect of the mosquito-proof fabric, and the mosquito-proof effect is long enough.
Referring to fig. 3, based on the same inventive concept, the embodiment of the present invention provides a method for preparing a temperature-adjusting antibacterial mosquito-proof fabric, which mainly comprises the following steps:
301. mixing polyvinyl alcohol with water, stirring for a period of time until the polyvinyl alcohol is dissolved, adding the mosquito-proof microcapsule and the cross-linking agent, and stirring again to obtain the water-soluble mosquito-proof polyvinyl alcohol spinning solution.
In the step, after the raw materials are weighed according to the required mass percentage, the weighed polyvinyl alcohol and water are placed in a reaction kettle to be mixed and then react, the mixture is stirred for a period of time until the polyvinyl alcohol is completely dissolved, then the weighed mosquito-proof microcapsules and the cross-linking agent are added, and the water-soluble mosquito-proof polyvinyl alcohol spinning solution is obtained after the mixture is stirred again.
In an optional embodiment provided by the application, the weight percentage content of the polyvinyl alcohol is 12-18%, the weight percentage content of the mosquito-proof microcapsule is 8-14%, the weight percentage content of the cross-linking agent is 1-3%, and the balance is water.
Specifically, due to the rheological property of the spinning solution for preparing the water-soluble mosquito-proof filament, the spinnability of the water-soluble mosquito-proof filament and the structure and performance of the finished filament are directly influenced.
In the embodiment, the mass percent content of the polyvinyl alcohol is set to be 12-18%, and the mass percent content of the anti-mosquito microcapsules is set to be 8-14%, because if the mass percent content of the polyvinyl alcohol and the mass percent content of the anti-mosquito microcapsules are too low, the viscosity of the spinning solution is low, overflow flow is easy to occur at a spinneret orifice during preparation, superfine spinning flow cannot be formed, and further the spinning continuity is influenced, and meanwhile, if the mass percent content of the anti-mosquito microcapsules is too low, the anti-mosquito function is difficult to realize; however, if the content of the both components is too high, the viscosity of the spinning solution becomes high, and the spinneret holes are clogged, resulting in difficulty in spinning.
Meanwhile, 1-3% of cross-linking agent is added, so that a firm cross-linking structure can be formed between the wall material of the mosquito-proof microcapsule and the polyvinyl alcohol molecular chain, the mosquito-proof microcapsule and the polyvinyl alcohol are cross-linked into a whole, and the mechanical property of the water-soluble mosquito-proof filament is improved.
In conclusion, the water-soluble mosquito-proof filament can achieve a certain technical effect by adopting the raw material proportion, and the water-soluble mosquito-proof filament obtained by adopting the raw material proportion has the water-soluble temperature of 20-60 ℃ and is convenient to dissolve.
In an optional embodiment provided by the present application, the polymerization degree of the polyvinyl alcohol is 1000 to 1800, and the alcoholysis degree is 60 to 90%; the cross-linking agent is carbamide.
Specifically, by adopting the polyvinyl alcohol with the polymerization degree and the alcoholysis degree and the cross-linking agent, the nano-scale mosquito-proof microcapsule can be applied to the polyvinyl alcohol fiber and fully enters gaps and amorphous areas of a polyvinyl alcohol matrix, a three-dimensional network cross-linking structure similar to network interpenetrating is formed between molecules, a firm cross-linking structure can be formed between the nano-scale mosquito-proof microcapsule and a polyvinyl alcohol molecular chain, the content of the nano-scale mosquito-proof microcapsule in the polyvinyl alcohol matrix can be increased, the controllability of mosquito-proof effective components is improved, and the effect of slow release is achieved.
In an optional embodiment provided by the application, the reaction temperature of the mixed polyvinyl alcohol and water is 80-95 ℃, the mixture is stirred for 3-5 hours at a stirring speed of 200-400 r/min, and the mixture is stirred for 0.5-1 hour after the anti-mosquito microcapsules and the cross-linking agent are added.
Specifically, after the polyvinyl alcohol is mixed with water, the reaction temperature is set to 80-95 ℃, and the polyvinyl alcohol is stirred for 3-5 hours at a stirring speed of 200-400 rpm, so that the reaction process of the polyvinyl alcohol is more sufficient.
Meanwhile, after the anti-mosquito microcapsule and the cross-linking agent are added, stirring is carried out for 0.5-1 hour again, so that the cross-linking reaction between the wall material of the microcapsule and the polyvinyl alcohol molecules is more sufficient, and finally the water-soluble anti-mosquito polyvinyl alcohol spinning solution is prepared.
302. And (3) defoaming the water-soluble mosquito-proof polyvinyl alcohol spinning solution, conveying the defoamed water-soluble mosquito-proof polyvinyl alcohol spinning solution to wet spinning equipment, spraying the defoamed water-soluble mosquito-proof polyvinyl alcohol spinning solution through a spinning nozzle under the pressure of nitrogen, and forming the defoamed water-soluble mosquito-proof polyvinyl alcohol spinning solution through a coagulating bath and a water washing bath to obtain the nascent fiber filament.
In the step, the water-soluble mosquito-proof polyvinyl alcohol spinning solution obtained in the step is defoamed and filtered, then is conveyed into wet spinning equipment, and finally is sprayed out through a spinning nozzle under the pressure of nitrogen to form primary filaments.
And forming the primary filaments by sequentially passing through a coagulating bath and a water washing bath to obtain the primary fiber filaments.
In an optional embodiment provided by the application, the temperature of the heat preservation water in the wet spinning equipment is 90-95 ℃, the water-soluble mosquito-proof polyvinyl alcohol spinning solution sequentially passes through a metering pump and a filter screen and then is sprayed out through a spinning nozzle, and the aperture of the spinning nozzle is 0.05-0.12 mm.
Specifically, the temperature of the heat preservation water adopted in the wet spinning equipment is 90-95 ℃, and at the temperature, the rheological property of the spinning stock solution is better, so that the spinnability and the mechanical property of the water-soluble mosquito-proof filaments are improved.
Simultaneously, set up the aperture of spinneret for 0.05 ~ 0.12mm, can form superfine spinning flow, can also prevent effectively that the spinning dope from blockking up the spinneret orifice.
In an optional embodiment provided by the application, a water-soluble mosquito-proof polyvinyl alcohol spinning solution is sprayed out of a spinning nozzle and then forms nascent fiber filaments through a coagulating bath, wherein the coagulating bath is a mixed solution formed by 25-35% of sodium sulfate and 1-3% of glycerin by mass, the temperature of the coagulating bath is 10-50 ℃, and the temperature of the coagulating bath is always lower than the water-soluble temperature of the water-soluble mosquito-proof filaments by 5-10 ℃;
removing surface residues of the as-spun fiber filaments through a water washing bath, wherein the water washing bath is a barium chloride solution with the mass fraction of 2-4%, and the temperature of the barium chloride solution is 5-15 ℃.
Specifically, a water-soluble mosquito-proof polyvinyl alcohol spinning solution is sprayed out through a spinning nozzle to form nascent filaments, the nascent filaments are subjected to coagulation bath to form nascent fiber filaments, and the coagulation bath adopts the mixed solution to enable polyvinyl alcohol molecular chains to be arranged in parallel orientation along a fiber axis, so that the number of macromolecular chains on the fiber section, the interaction force among the molecular chains and the uniformity of chain stretching are facilitated to be improved, and the mechanical property of the water-soluble mosquito-proof filaments is further improved. Moreover, in the process, the temperature of the adopted coagulating bath is required to be lower than the water-soluble temperature of the water-soluble mosquito-proof filaments by 5-10 ℃ all the time, so that the quality of the filaments can be improved, and the water-soluble mosquito-proof filaments can be effectively prevented from being dissolved.
The surface of the as-spun fiber filament formed by the coagulating bath has more sodium sulfate residues, so that the as-spun fiber filament is washed by the water washing bath, and the sodium sulfate residues on the surface of the as-spun fiber filament can be effectively removed. The water washing bath adopts the solution, so that redundant sodium sulfate can be removed, the product barium sulfate is precipitated at the bottom of the water washing bath, and the adverse effect of sulfate ions on the subsequent fiber hot drawing is avoided.
303. And sequentially carrying out hot drawing, oiling, drying, winding and packaging on the as-spun fiber filaments to obtain the water-soluble mosquito-proof filaments, wherein the water-soluble temperature of the water-soluble mosquito-proof filaments is 20-60 ℃.
In the step, the nascent fiber filaments obtained in the previous step are subjected to hot drawing, oiling, drying, winding and packaging in sequence, and finally the water-soluble mosquito-proof filaments with the water-soluble temperature of 20-60 ℃ are obtained.
The steps 301-303 are processes for preparing the water-soluble mosquito-proof filament.
304. Taking the water-soluble mosquito-proof filament as a core yarn, and coating the outer surface of the core yarn with a coating fiber prepared by mixing phase-change temperature-adjusting fiber and antibacterial polyester fiber in a mass ratio of 1:1 to obtain the temperature-adjusting antibacterial mosquito-proof yarn; wherein the mass percentage content of the core yarn is 20-30%.
In the step, phase-change temperature-adjusting fibers and antibacterial polyester fibers in a mass ratio of 1:1 are mixed to prepare coating fibers, then the water-soluble mosquito-proof filaments obtained in the previous step are used as core yarns, and finally the coating fibers are spirally wound and coated on the outer surfaces of the core yarns to obtain the temperature-adjusting antibacterial mosquito-proof yarns.
The temperature-adjusting antibacterial mosquito-proof yarn comprises 20-30% of core yarn and the balance of coating fibers. Under the mass percentage content, the fabric has three functions of temperature adjustment, antibiosis and mosquito prevention, and all the functions can reach the best state.
305. And sequentially carrying out warping, denting, weaving and cloth repairing finishing on the temperature-adjusting antibacterial mosquito-proof yarn to obtain the grey fabric.
In the step, the temperature-regulating antibacterial mosquito-proof yarn obtained in the last step is subjected to warping, denting, weaving and cloth repairing finishing operations in sequence to obtain a grey fabric.
The temperature-adjusting antibacterial mosquito-proof yarn is a single yarn, and the linear density of the yarn is 23.6-29.5 tex.
306. The grey fabric is sequentially subjected to washing, tentering, dry setting, preshrinking and rolling to obtain the temperature-adjusting antibacterial mosquito-proof fabric with the square meter mass of 150-170 g/m2。
In the step, the grey fabric obtained in the step is sequentially subjected to operations of washing, tentering, dry setting, preshrinking, rolling and the like to obtain the temperature-adjusting antibacterial mosquito-proof fabric, wherein the square meter mass of the fabric is 150-170 g/m2。
In an optional embodiment provided by the application, the temperature of the water washing operation is 40-80 ℃, and the temperature of the tentering dry setting operation is 150-170 ℃.
Specifically, the dissolving temperature of the prepared water-soluble mosquito-proof filament is 20-60 ℃, and after the water-soluble mosquito-proof filament is mixed with other fibers to develop a fabric, the water-soluble mosquito-proof filament is in the yarn and is not fully contacted with water, so that the temperature of water washing operation needs to be set to be 40-80 ℃, and the water-soluble mosquito-proof filament is favorably dissolved.
When the dissolving temperature of the water-soluble mosquito-proof filament is 20 ℃, the after-finishing washing temperature of the grey cloth is set to be about 40 ℃ and the washing time is set to be shorter, so that more water-soluble polyvinyl alcohol in the fabric can be reserved; the normal machine washing temperature of the fabric is also 40 ℃, and the polyvinyl alcohol can be continuously dissolved in the subsequent wearing and washing process, so that the temperature-regulating antibacterial mosquito-proof fabric with controllable slow release effect is obtained. If the dissolving temperature of the water-soluble mosquito-proof filaments is about 40 ℃, the dissolving temperature of the filaments in the fabric is about 60 ℃ which is 40 ℃ higher than the conventional machine washing temperature, so the post-finishing washing temperature of the grey fabric is slightly higher, the time is set to be slightly longer, and the water-soluble polyvinyl alcohol is slightly kept. Thus, the controllable slow release effect of the mosquito-proof active ingredients can be realized according to the temperature and the processing time of the water washing operation.
In conclusion, the invention realizes the multifunctional composition of temperature regulation, antibiosis, deodorization, mosquito prevention and the like, and simultaneously realizes the controllable slow release effect of the mosquito-proof active ingredients, thereby effectively improving the mosquito-proof effect of the mosquito-proof fabric, and the mosquito-proof effect is long enough.
It should be noted that the above-mentioned embodiments of the method are described as a series of actions for simplicity of description, but those skilled in the art should understand that the present invention is not limited by the described sequence of actions. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
In order to further understand the invention, the following specific description will be made on the preparation method of the temperature-regulating antibacterial mosquito-proof fabric provided by the invention with reference to specific examples.
Example one
(1) Weighing the following raw materials in percentage by mass: 14% of polyvinyl alcohol with the polymerization degree of 1200 and the alcoholysis degree of 60%, 10% of mosquito-proof microcapsules, 1% of a cross-linking agent and the balance of water, wherein the cross-linking agent adopts carbamide;
and (2) placing the weighed polyvinyl alcohol and water into a reaction kettle, mixing, reacting at the reaction temperature of 80 ℃, stirring for 3 hours at the stirring speed of 200 revolutions per minute, adding the weighed mosquito-proof microcapsules and a cross-linking agent, and stirring for 0.5 hour to obtain the water-soluble mosquito-proof polyvinyl alcohol spinning solution.
(2) Defoaming a water-soluble mosquito-proof polyvinyl alcohol spinning stock solution, filtering, conveying the solution to wet spinning equipment, keeping the temperature at 90 ℃, sequentially passing through a metering pump and a filter screen under the pressure of nitrogen, then spraying the solution through a spinning nozzle, wherein the aperture of the spinning nozzle is 0.05mm, and then forming the solution through a coagulating bath and a water washing bath to obtain nascent fiber filaments;
wherein the coagulating bath is a mixed solution of 25% sodium sulfate and 1% glycerol, and the temperature is 10 deg.C; the water bath was 2% barium chloride solution at 5 ℃.
(3) And sequentially carrying out hot drawing, oiling, drying, winding and packaging on the as-spun fiber filaments to obtain the water-soluble mosquito-proof filaments with the water-soluble temperature of 20 ℃.
(4) Taking the water-soluble mosquito-proof filament as a core yarn, and coating the outer surface of the core yarn with a coating fiber prepared by mixing phase-change temperature-adjusting fiber and antibacterial polyester fiber in a mass ratio of 1:1 to obtain the temperature-adjusting antibacterial mosquito-proof yarn which is a single yarn and has the linear density of 23.6 tex; wherein, the mass percent content of the core yarn is 20 percent, and the mass percent content of the cladding fiber is 80 percent.
(5) Sequentially carrying out washing, tentering, dry setting, preshrinking and rolling on the grey fabric to obtain the temperature-adjusting antibacterial mosquito-proof fabric with the mass per square meter of 150g/m2(ii) a Wherein the temperature of the water washing operation is 40 ℃, and the temperature of the tentering dry setting operation is 150 ℃.
Example two
(1) Weighing the following raw materials in percentage by mass: 16% of polyvinyl alcohol with the polymerization degree of 1600 and the alcoholysis degree of 70%, 10% of mosquito-proof microcapsules, 2% of a cross-linking agent and the balance of water, wherein the cross-linking agent adopts carbamide;
and (2) placing the weighed polyvinyl alcohol and water into a reaction kettle, mixing, reacting at 85 ℃, stirring at a stirring speed of 300 revolutions per minute for 4 hours, adding the weighed mosquito-proof microcapsules and a cross-linking agent, and stirring for 0.5 hour to obtain the water-soluble mosquito-proof polyvinyl alcohol spinning solution.
(2) Defoaming a water-soluble mosquito-proof polyvinyl alcohol spinning stock solution, filtering, conveying the solution to wet spinning equipment, keeping the temperature at 90 ℃, sequentially passing through a metering pump and a filter screen under the pressure of nitrogen, then spraying the solution through a spinning nozzle, wherein the aperture of the spinning nozzle is 0.08mm, and then forming the solution through a coagulating bath and a water washing bath to obtain nascent fiber filaments;
wherein the coagulating bath is a mixed solution of 30% sodium sulfate and 2% glycerol, and the temperature is 30 deg.C; the water bath was a 3% barium chloride solution at 5 ℃.
(3) And sequentially carrying out hot drawing, oiling, drying, winding and packaging on the as-spun fiber filaments to obtain the water-soluble mosquito-proof filaments with the water-soluble temperature of 40 ℃.
(4) Taking the water-soluble mosquito-proof filament as a core yarn, and coating the outer surface of the core yarn with a coating fiber prepared by mixing phase-change temperature-adjusting fiber and antibacterial polyester fiber in a mass ratio of 1:1 to obtain the temperature-adjusting antibacterial mosquito-proof yarn which is a single yarn and has the linear density of 26.2 tex; wherein, the mass percent content of the core yarn is 25 percent, and the mass percent content of the cladding fiber is 75 percent.
(5) Sequentially carrying out washing, tentering, dry setting, preshrinking and rolling on the grey fabric to obtain the temperature-regulating antibacterial mosquito-proof fabric with the mass per square meter of 160g/m2(ii) a Wherein the temperature of the water washing operation is 60 ℃, and the temperature of the tenter dry setting operation is 160 ℃.
EXAMPLE III
(1) Weighing the following raw materials in percentage by mass: 18% of polyvinyl alcohol with the polymerization degree of 1600 and the alcoholysis degree of 90%, 10% of mosquito-proof microcapsules, 3% of a cross-linking agent and the balance of water, wherein the cross-linking agent adopts carbamide;
and (2) placing the weighed polyvinyl alcohol and water into a reaction kettle, mixing, reacting at the temperature of 95 ℃, stirring at the stirring speed of 400 r/min for 5 hours, adding the weighed mosquito-proof microcapsules and a cross-linking agent, and stirring for 1.0 hour to obtain the water-soluble mosquito-proof polyvinyl alcohol spinning solution.
(2) Defoaming a water-soluble mosquito-proof polyvinyl alcohol spinning stock solution, filtering, conveying the solution to wet spinning equipment, keeping the temperature of the water at 95 ℃, sequentially passing through a metering pump and a filter screen under the pressure of nitrogen, then spraying the solution through a spinning nozzle, wherein the aperture of the spinning nozzle is 0.12mm, and then forming the solution through a coagulating bath and a water washing bath to obtain nascent fiber filaments;
wherein the coagulating bath is a mixed solution of 35% sodium sulfate and 3% glycerol, and the temperature is 50 deg.C; the water bath was a 4% barium chloride solution at 10 ℃.
(3) And sequentially carrying out hot drawing, oiling, drying, winding and packaging on the as-spun fiber filaments to obtain the water-soluble mosquito-proof filaments with the water-soluble temperature of 60 ℃.
(4) Taking water-soluble mosquito-proof filaments as core yarns, and coating the outer surfaces of the core yarns with coating fibers prepared by mixing phase-change temperature-adjusting fibers and antibacterial polyester fibers in a mass ratio of 1:1 to obtain temperature-adjusting antibacterial mosquito-proof yarns which are single yarns and have a linear density of 29.5 tex; wherein, the mass percent content of the core yarn is 30 percent, and the mass percent content of the cladding fiber is 70 percent.
(5) Sequentially carrying out washing, tentering, dry setting, preshrinking and rolling on the grey fabric to obtain the temperature-regulating antibacterial mosquito-proof fabric with the square meter mass of 170g/m2(ii) a Wherein the temperature of the water washing operation is 80 ℃, and the temperature of the tentering dry setting operation is 170 ℃.
In order to verify the performance of the prepared fabric, the fabric of 3 types prepared in examples 1 to 3 were tested for physical properties, temperature adjusting properties, antibacterial properties and mosquito-repellent properties, respectively, and the test results are shown in table 1 below.
Table 1 fabric performance test results
The test results in table 1 show that after 50 times of washing, the temperature regulation performance meets the relevant requirements of T/CTES 1005-. The antibacterial performance of the fabric meets the standard GB/T20944.3-2008 < evaluation of antibacterial performance of textiles part 3: the antibacterial requirement of the oscillatory method; after 10 times of washing, the repellent effect of the fabric meets the A-level requirement of GB/T30126 and 2013 'detection and evaluation of mosquito-proof performance of textiles'.
In summary, according to the preparation method of the temperature-regulating antibacterial mosquito-proof yarn provided by the embodiment of the invention, by referring to the core-spun yarn structure model, the core yarn is made of the self-made water-soluble mosquito-proof functional filament, and the outer-side coating fiber is made by mixing the phase-change temperature-regulating fiber and the antibacterial polyester fiber, so that the functions of intelligent temperature regulation, antibacterial deodorization, mosquito prevention and the like are effectively combined, and the use requirements of people are met.
Meanwhile, the water-soluble anti-mosquito filament is distributed with the anti-mosquito microcapsules in a sea-island manner, the binding force between the anti-mosquito microcapsules and fibers is improved, and meanwhile, the water-soluble polyvinyl alcohol matrix is gradually dissolved in the fabric printing and dyeing processing or subsequent washing and using process, so that the anti-mosquito microcapsules continuously volatilize anti-mosquito active ingredients through a slow release effect, the anti-mosquito function of the fabric is delayed, and the service cycle of the anti-mosquito functional textile is effectively prolonged.
The invention realizes the effects of temperature regulation, antibiosis, deodorization, mosquito prevention and the like, and simultaneously realizes the controllable slow release of the mosquito prevention active ingredients, thereby effectively improving the mosquito prevention effect of the mosquito prevention fabric, and the mosquito prevention effect is lasting.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides an antibiotic mosquito-proof yarn adjusts temperature which characterized in that includes:
the core yarn is a water-soluble anti-mosquito filament, and anti-mosquito microcapsules distributed in a sea island shape are arranged inside and on the surface of the core yarn; the water-soluble mosquito-proof filament is prepared from the following raw materials in percentage by mass: 12-18% of polyvinyl alcohol, 8-14% of anti-mosquito microcapsules, 1-3% of a cross-linking agent and the balance of water;
the cladding fiber is prepared by mixing phase-change temperature-adjusting fiber and antibacterial polyester fiber and is spirally wound and cladded on the outer surface of the core yarn;
wherein the core yarn comprises 20-30% by mass, and the balance is the coating fiber.
2. The temperature-adjusting antibacterial mosquito-proof yarn as claimed in claim 1, wherein the water-soluble mosquito-proof filament has a water-soluble temperature of 20-60 ℃.
3. The temperature-adjusting antibacterial mosquito-proof yarn as claimed in claim 2, wherein the polymerization degree of the polyvinyl alcohol is 1000-1800, and the alcoholysis degree is 60-90%;
the cross-linking agent is carbamide.
4. The temperature-adjusting antibacterial mosquito-proof yarn as claimed in claim 1, wherein the mass ratio of the phase-change temperature-adjusting fibers to the antibacterial polyester fibers is 1: 1.
5. A temperature-adjusting antibacterial mosquito-proof fabric is characterized by being spun by the temperature-adjusting antibacterial mosquito-proof yarn according to any one of claims 1 to 4, and the square meter mass of the fabric is 150-170 g/m2；
The temperature-adjusting antibacterial mosquito-proof yarn is a single yarn, and the linear density of the temperature-adjusting antibacterial mosquito-proof yarn is 23.6-29.5 tex.
6. A preparation method of a temperature-adjusting antibacterial mosquito-proof fabric is characterized by comprising the following steps:
mixing polyvinyl alcohol with water, stirring for a period of time until the polyvinyl alcohol is dissolved, adding the mosquito-proof microcapsule and the cross-linking agent, and stirring again to obtain a water-soluble mosquito-proof polyvinyl alcohol spinning solution; wherein the mass percent of the polyvinyl alcohol is 12-18%, the mass percent of the mosquito-proof microcapsule is 8-14%, the mass percent of the cross-linking agent is 1-3%, and the balance is water;
defoaming the water-soluble mosquito-proof polyvinyl alcohol spinning solution, conveying the solution to wet spinning equipment, spraying the solution through a spinning nozzle under the pressure of nitrogen, and forming the solution through a coagulating bath and a water washing bath to obtain nascent fiber filaments;
sequentially carrying out hot drawing, oiling, drying, winding and packaging on the as-spun fiber filaments to obtain water-soluble mosquito-proof filaments, wherein the water-soluble temperature of the water-soluble mosquito-proof filaments is 20-60 ℃;
taking the water-soluble mosquito-proof filament as a core yarn, and coating the outer surface of the core yarn with a coating fiber prepared by mixing phase-change temperature-adjusting fiber and antibacterial polyester fiber in a mass ratio of 1:1 to obtain a temperature-adjusting antibacterial mosquito-proof yarn; wherein the mass percentage content of the core yarn is 20-30%;
sequentially carrying out warping, denting, weaving and cloth repairing finishing on the temperature-adjusting antibacterial mosquito-proof yarn to obtain a grey fabric;
the grey fabric is sequentially subjected to washing, tentering, dry setting, preshrinking and rolling to obtain the temperature-adjusting antibacterial mosquito-proof fabric with the square meter mass of 150-170 g/m2。
7. The method as claimed in claim 6, wherein in the step of obtaining the water-soluble mosquito-proof polyvinyl alcohol spinning solution, the polymerization degree of the polyvinyl alcohol is 1000-1800, and the alcoholysis degree is 60-90%; the cross-linking agent is carbamide;
the reaction temperature of the mixed polyvinyl alcohol and water is 80-95 ℃, the mixture is stirred for 3-5 hours at the stirring speed of 200-400 r/min, and the mosquito-proof microcapsules and the cross-linking agent are added and then stirred for 0.5-1 hour.
8. The method as claimed in claim 6, wherein in the step of obtaining the as-spun fiber filament, the temperature of the heat preservation water in the wet spinning equipment is 90-95 ℃, the water-soluble mosquito-proof polyvinyl alcohol spinning solution passes through a metering pump and a filter screen in sequence and then is sprayed out through the spinneret, and the aperture of the spinneret is 0.05-0.12 mm.
9. The method as claimed in claim 6, wherein in the step of obtaining the as-spun fiber filament, the as-spun fiber filament is formed by spraying the water-soluble mosquito-proof polyvinyl alcohol spinning solution through a spinning nozzle and then passing the spinning solution through the coagulating bath, wherein the coagulating bath is a mixed solution of 25-35% by mass of sodium sulfate and 1-3% by mass of glycerol, the temperature of the coagulating bath is 10-50 ℃, and the temperature of the coagulating bath is always lower than the water-soluble temperature of the water-soluble mosquito-proof filament by 5-10 ℃;
and removing surface residues of the as-spun fiber filaments by the water bath, wherein the water bath is a barium chloride solution with the mass fraction of 2-4%, and the temperature is 5-15 ℃.
10. The method as claimed in claim 6, wherein in the step of obtaining the temperature-adjusting antibacterial mosquito-repellent fabric, the temperature of the water washing operation is 40 to 80 ℃, and the temperature of the tentering dry-setting operation is 150 to 170 ℃.
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| CN102926201B (en) * | 2012-11-28 | 2015-02-04 | 福州大学 | Anti-mosquito sustained-release cloth finishing method |
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