WO2006092094A1

WO2006092094A1 - Fabric finishing liquor for expelling and killing mosquitoes, method of use and products thereof

Info

Publication number: WO2006092094A1
Application number: PCT/CN2006/000288
Authority: WO
Inventors: Jianyong Liu; Zanmin Wu; Xiaohong Dai; Li Yang; Chenbiao Li; Chenyang Li
Original assignee: Tianjin Yorkool International Trading Co., Ltd.
Priority date: 2005-03-04
Filing date: 2006-02-28
Publication date: 2006-09-08
Also published as: CN1664227A; CN100383335C

Abstract

Fabric finishing liquid for killing mosquitoes and its method of application and the desired functional products are claimed. The liquid comprises pesticide and/or repellent 0.05-40.00%, bond 5.00-40.00%, crosslinking agent 0.025-1.50% and the rest is water (for up to 100%), all based on mass percent. The pesticide and repellent is an aqua repellent with effective content 1%-50%, and the bond is an aqua bond with effective solid content 40%-50%. Said method characters in that, after preparation of the fabric finishing liquid and dipping, the roller press is adjusted, and the fabric is introduced into a drying machine at a controlled contained liquid rate of 30-150%. The drying temperature is 60-250 ºC. The textile product is the fibre fabric product that is finished with said liquid or by said method, suggested in the present invention.

Description

Fabric finishing liquid for killing mosquitoes and using method and product thereof

The invention relates to a finishing technology of a functional fabric, in particular to a fabric finishing liquid for killing mosquitoes and a using method and product thereof, and the international patent main classification number is intended to be Int. Cl ⁷ . A01N 25/00. Background technique

Many infectious diseases (such as malaria, dengue, etc.) are transmitted and endemic by various mosquitoes, especially women and children. According to information, the number of deaths worldwide is as high as 1 - 3 million per year due to such infectious diseases. Therefore, the World Health Organization (WHO) strongly recommends the use of fabrics that have been prepared with insecticides or repellents as an effective means of controlling the above-mentioned mosquito-borne diseases in order to prevent the spread of diseases and protect human health.

The so-called mosquito-repellent fabric is a fabric that has been finished with a killer or/and a repellent, or a functionally treated fabric that has the function of killing or repelling mosquitoes. According to the introduction of the "Comprehensive Management of Mosquitoes" (1998 edition, ISBN ISBN 07-007310-X), there are several methods for the treatment of existing insect-repellent fabrics at home and abroad:

1. Impregnation method, which is a method in which the fabric is placed in a prepared mosquito-repellent fabric finishing liquid (such as a pyrethroid solution) for a certain period of time, and the residual liquid is removed by hand or other methods;

2. Spraying method, a method of spraying a mosquito-repellent fabric finishing liquid (such as a pyrethroid solution) onto a fabric;

3. Printing and dyeing method, using a method for killing mosquitoes and fabrics using a finishing method (for example, dipping, coating, etc.) to remove the mosquitoes from the finishing process;

4. The fiber method, in which a mosquito-repellent substance (such as pyrethroid) is blended in a spinning solution to produce a functional fiber for killing mosquitoes, such as "0LYSET" polyethylene fiber of Sumitomo Corporation of Japan.

The one-three methods described can be summarized as: finishing method. The functional finishing of such a mosquito-repellent fabric is accomplished by finishing the fabric with a finishing fluid comprising one or more insecticides or/and one or more repellents. The quality depends on the quality of the mosquito-repellent finishing liquid, including: 1. The functionality of the finishing liquid, that is, whether it can effectively kill the mosquitoes; 2. The firmness of the combination of the finishing liquid and the fabric, especially the washing resistance, that is, whether to wash After reducing or losing the function of effectively killing mosquitoes. The World Health Organization requires that the standard for resistance to multiple washable insect-repellent fabrics is: It can withstand at least 20 times of WHO standard washing, and the mosquito knockdown rate reaches more than 90% 60 minutes after washing; the 24-hour mosquito mortality rate is over 80%. It can be seen that the world standard requirements for insect-repellent fabrics that are truly resistant to multiple washes are very embarrassing. Although the impregnation method and the spraying method described in the prior art are simple, the content and distribution of the pyrethroid on the fabric cannot be precisely controlled, and the pyrethroid itself and the fiber are not firmly bonded, and have no washing durability, only Temporary. The "0LYSET" polyethylene fiber of Sumitomo Co., Ltd. is a blend of pyrethroids in a spinning solution to produce anti-mosquito and insect-resistant fibers. The fiber produced by this method has good bonding fastness to pyrethroid and fiber, good washing resistance, convenient processing and no pollution. However, the investment is large, the production process is complicated, the obtained fiber fabric has poor hand feeling and the price is low; and it is limited to polyethylene fiber. For the commonly used polyester fiber, polyamide fiber and polyacrylonitrile fiber, because of the high spinning temperature, the pyrethrum The active ingredient of the ester has a destructive effect, so the application range has great limitations.

In order to obtain the performance of mosquitoes with durability, domestic and foreign scientific and technical personnel have done a lot of research and development. For example, the Chinese patent (97102295. X) introduces a method of coating processing, which is included in a thickener by adding a methylated melamine resin as a cross-linking polyvinyl acetate or acrylic binder. Permethrin is applied to the fabric on one side, thereby improving the water wash resistance. However, this method requires the inclusion of the insecticide in the thickener carboxymethylcellulose. Due to the high viscosity of the system, it is only suitable for the coating processing of flat woven fabrics, and is not suitable for warp knitting or weft-knitted nets which are prone to deformation. Processing of the fabric. More importantly, the processed product of the polyvinyl acetate, acrylic copolymer and crosslinker methylated melamine resin used in the method, the retention of the functional substance permethrin after 5 daily washings The rate is only 30. 8-58. 8%, which does not meet the requirements of the WHO standard, and the method has a large amount of functional material loss and high cost.

Chinese patent (publication number CN1414831A) reports the use of insecticides or insecticides and repellents, as well as a film-forming component (paraffin oil or paraffin derivative, silicone derivative, silicone oil or silicone wax derivative). a composition impregnated with a composition of a polyfluorocarbon derivative), and a film-forming component (resin, polyurethane or polyacrylic acid) to form a polymer skeleton, such that paraffin oil on the fabric or fabric impregnated with the composition Or a paraffin derivative, a siloxane derivative, a silicone oil or a silicone wax derivative, or a polyfluorocarbon derivative is attached to the polymer backbone. Thereby, a water-resistant and optionally oil-resistant film is formed which covers the molecular protective layer containing the insecticide or repellent fabric, thereby obtaining a pest-repellent fabric having wash durability. The patent relates to the use of organic solvents (acetone, hexane, heptane, crude gasoline and petroleum ether; aromatic solvents such as benzene, toluene and xylene; halogenated hydrocarbon solvents such as chloroform) for insecticides or insecticide-repellants. , carbon tetrachloride, dichloroacetic acid, chlorobenzene and dichlorobenzene; ether solvents such as diethyl ether, diisopropyl ether, dioxan, tetrahydrofuran and ethylene glycol dimethyl ether; ester solvents such as ethyl acetate and acetic acid Butyl ester; nitro compounds such as nitroethane and nitrobenzene; dimethylformamide; and mixtures thereof) are dissolved, and then an emulsifier is added under stirring to form an aqueous emulsion or an organic solution, and the fabric or net fabric can be passed. Extrusion, or centrifugation to remove excess composition. Although the method has certain washing durability (after 12 times of WHO standard washing, the mosquito knockdown rate reaches 100% 60 minutes after washing; the 24-hour mosquito mortality rate reaches 70%), but the requirements of the WHO standard are still not met. And at the same time, because it is covered with a water-resistant and optionally oil-resistant film on a functional substance containing an insecticide or a repellent, the product is affected by whether the film affects the effective movement of the insecticide. The activity is doubtful, but due to the complicated process of the laminating process, the processing cost is determined. In particular, the method requires the use of organic solvents to process the pesticide, which is a great defect to the environmental pollution and production safety problems. Suitable for environmental protection and clean production needs. ' The Chinese patent (publication number CN1281072A) relates to the method of arranging the insect repellent finishing liquid, using the padding method, and fixing the insect repellent to the fabric by using the auxiliaries and additives commonly used in the textile printing and dyeing industry, thereby Textiles made of fabrics can isolate the bites of mosquitoes, inhibit the growth and spread of dust mites, and their dust mites allergens are not easily spilled from textiles, flying into the air, eliminating various respiratory tracts caused by dust mites allergens disease. Most of the insect repellents involved in this method are liquid. The main raw materials are: hexachlorophenol, pentachlorophenol, 2-ethylhexyl butanediol, N, N-diethyl m-toluamide , N, N-diethyl m-methylamine, camphor, dimethyl phthalate, diethyl phthalate, methyl p-hydroxybenzoate, butadiene furfural copolymer, and the like. Since these insect repellents are generally poorly soluble in water, it is necessary to select an appropriate emulsifier. The emulsifiers mainly used in this method are 0P (alkylphenol ethoxylate), S-60 (sorbitan stearate), EL (castor oil epoxy oxime condensate), 0 π - 10 (Alkyl phenol and epoxy oxime condensate) and emulsifiers 0-10, Μ0, 0-4, 0S, TX-10, Τ-60, and the like. The insect repellent finishing liquid involved in the method includes substances that are prohibited by many countries and international organizations (such as pentachlorophenol), and its practical application value is not::, and the fabric produced by the method can only withstand 10 times of household use. Washing does not meet the requirements of the WHO standard.

The Chinese patent (Publication No. CN1473988A) also describes a method for producing an insect-repellent fabric. The invention is characterized in that the formulation of the treatment liquid comprises three independent parts of insect repellent liquid, adhesive and water, and the weight ratio of the three is 1: 1:8-25, wherein the insect repellent component comprises the insecticide pyrethroid. , Aromatic solvent, repellent, DEET, surfactant, antifouling agent containing perfluoroalkyl compound, UV absorber UV_326, crosslinking agent methyl etherified melamine, catalyst p-toluenesulfonic acid. The preparation process comprises the steps of: adding a predetermined amount of pyrethroid, a DEET, an antifouling agent containing a perfluorodecyl compound, a UV absorber, a crosslinking agent, methyl etherifying melamine, and a catalyst, p-toluenesulfonic acid. In an amount of 1/2-1/3 of the aromatic agent, stir at 30-50 ° C for 20-40 min _; add the required amount of three surfactants, and add the remaining 1/2-2/3 The aromatic solvent is continuously stirred at 30-50 ° C for 20-40 min. The method for producing the insect-repellent fabric involved in the patent is to put the required amount of the insect-proof liquid, water and binder into the stirring tank in sequence, stir at a temperature of 15-35 ° C for 3-7 min, and adjust the pH value with acetic acid to 5. 5-6. 5. Then, the immersion treatment--rolling liquid type processing is performed. The finishing solution of the method involves an aromatic hydrocarbon solvent, which may cause environmental pollution during actual use, and is not suitable for clean production; and the preparation process of the insect repellent liquid is complicated, the production conditions are high, and the preparation time is long. In addition, this method does not describe the performance of any fabric in terms of water wash resistance. Summary of the invention

In view of the deficiencies of the prior art, the technical problem to be solved by the present invention is to design a fabric finishing liquid for killing mosquitoes, a method and a method for using the same, the fabric finishing liquid does not contain an organic solvent, is low in toxicity and high in efficiency, and can be relatively cleanly produced. And the preparation method and the use method thereof are both simple, low in cost, and can be industrially implemented and produced; the fabric product finished by the fabric finishing liquid is strong in killing mosquitoes, and is washable, and can meet the standards prescribed by the WHO. The technical solution for solving the technical problem of the fabric finishing liquid of the invention is: designing a fabric finishing liquid for killing mosquitoes, the fabric finishing liquid mass percentage formula comprises:

Pesticide and / or repellent, 0. 05-40. 00%;

Adhesive, 5. 00% - 40. 00%;

Crosslinking agent 0. 025% - 1. 50%;

The rest is water, and the sum of the components is equal to 100%;

The insecticide is an aqueous dosage form of an effective amount of 1% to 50%, and the aqueous preparation type insecticide is selected from one or two of the following substances: deltamethrin, cyfluthrin, cyhalothrin , cypermethrin, permethrin and etofenprox;

The repellent is an aqueous dosage form repellent having an effective content of 1% to 50%, and the processing water repellent is selected from one or two of the following substances: DEET, mosquito repellent and dichlorobenzene Ethylmethrin

The aqueous dosage form of the insecticide and the repellent includes one or two of the following aqueous dosage forms: wettable powder, water-dispersible powder, aqueous dispersion suspension, water-dispersible tablet, aqueous emulsion, microcapsule suspension and Water-dispersible granules;

The adhesive is a liquid dosage type adhesive having a solid content of 40-50%, and comprises one or two selected from the group consisting of polybutadiene emulsion, aqueous polyurethane emulsion, polyacrylic emulsion, polyacrylic acid. Ester emulsion or vinyl acetate emulsion;

The crosslinking agent comprises one or two selected from the group consisting of: an epoxy polymer crosslinking agent, a methyl etherified hexamethylol melamine resin condensing agent crosslinking agent, and a polyfunctional aziridine crosslinking. a crosslinking agent composed of a plurality of methylol crosslinkers, a hydroxyethyl group and an epoxy group, a polycondensate acetate crosslinker of epichlorohydrin and hexamethylenediamine.

The technical solution for solving the technical problem of the method for using the fabric finishing liquid is: designing a method for using a fabric finishing liquid for repelling mosquitoes, which is to use a printing and dyeing device to finish the fabric, using the fabric of the invention After finishing the immersion liquid, adjust the roll pressure to control the liquid flow rate to 30-150% into the drying sizing machine, and the drying set temperature is 60-250 °C.

The technical solution for solving the technical problem of the mosquito-repellent fabric product is: designing a mosquito-repellent fabric product, which is a fiber fabric product obtained by finishing the fabric finishing liquid according to the present invention; or using the present invention The finishing method of the invention organizes the obtained fiber fabric article.

Compared with the prior art described above, the technology of the present invention,

First, no organic solvent is used in the fabric finishing liquid, so there is no environmental pollution and production safety problems in the industrial implementation process, and the production can be cleaned.

Secondly, the aqueous dosage form insecticide or repellent used in the present invention solves the problem of compatibility between the water-insoluble or slightly water-soluble pesticide and the repellent and the aqueous binder, and Since the finishing liquid is an aqueous solution, it is all classified It has good dispersibility, wettability and stability, moderate viscosity of the system, simple composition of the finishing liquid and convenient preparation. Therefore, it can be used immediately. The finishing or using method is very simple, the process is short, and it is suitable for various fabrics.

Third, due to the good combination of the cross-linking agent, the binder and the water-based insecticide or repellent designed in the fabric finishing solution formulation, it can form a good fixing force with the fiber of the fabric, and at the same time The application amount of the insecticide or repellent on the fabric can be precisely controlled and evenly distributed by the liquid-carrying rate, so that the mosquito-repellent fabric product obtained by the fabric finishing liquid and the finishing method of the invention has long-lasting water-washing performance and is smothered. Mosquitoes are potent. The invention has passed laboratory experiments and actual production experiments, and the data is stable and operability is good in the experiment. Experiments have shown that after 20 times of WHO standard washing (the washing procedure is the standard procedure recommended by the World Health Organization), the retention rate of pesticides can still reach 80-90%, and the biological test can also meet the WHO regulations. Standard requirements.

Fourthly, the cross-linking agent used in the fabric finishing liquid formulation of the invention has good compatibility with the aqueous binder, and the cross-linking agent can cross-link with the reactive group of the binder to form a comparative Large, unique, network-like molecular structure that surrounds and anchors between fabric fibers and surfaces, while suspended particles of insecticides and/or repellents are also physically anchored to the fiber surface during the finishing process. Among the mesh structures. This structure, on the one hand, the particles of the insecticide or repellent exposed to the surface of the fabric, the biological/chemical activity can be unimpeded, resulting in a more complete and effective release; on the other hand, being coated on the bond The active ingredient in the granules of the insecticide and/or repellent in the network formed by the agent and the cross-linking agent can be released to the surface of the fabric through the pores and channels characteristic of the network structure, providing a continuous The insecticidal performance is reduced, and the pesticide and/or repellent agent brought by the balanced washing is reduced, thereby improving the washing durability of the mosquito-repellent fabric product. detailed description

The invention will be further described below in conjunction with the examples:

The invention firstly designs a fabric finishing liquid for killing mosquitoes. The killing of mosquitoes includes killing mosquitoes, knocking down mosquitoes, repelling mosquitoes, and defending against mosquitoes. The fabric finishing liquid for killing mosquitoes designed by the present invention, the mass percentage formula thereof comprises:

Pesticide and / or repellent, 0. 05-40. 00%;

Adhesive, 5. 00% - 40. 00%;

Crosslinking agent 0. 025%-1. 50%;

The rest is water, and the sum of the components is equal to 100%;

The insecticide is an aqueous dosage form of an effective amount of 1% to 50%, and the aqueous preparation type insecticide is selected from one or two of the following substances: deltamethrin, cyfluthrin, cyhalothrin , cypermethrin, permethrin and etofenproxil. The selection of the insecticide is based on the fact that it can provide rapid and effective killing and hitting of mosquitoes; 2. low toxicity to mammals; 3. low resistance and cross-resistance of mosquitoes; It is easy to prepare into a water dosage form. Selected The insecticides are all fabrics recommended for use in the anti-mosquito treatment recommended by the WHO standard, or insecticides that are not recommended but meet the standards.

The repellent is an aqueous dosage form repellent having an effective content of 1% to 50%, and the processing water repellent is selected from one or two of the following substances: DEET, mosquito repellent and dichlorobenzene Ethyl pyrethrin. The repellent is a commonly used mosquito repellent.

The aqueous dosage form of the insecticide and repellent includes one or two of the following aqueous dosage forms: wettable powder, water-dispersible powder, aqueous dispersion suspension, water-dispersible tablet, aqueous emulsion, microcapsule suspension and Water-dispersible granules. It is preferable to use a microcapsule suspending agent in the aqueous formulation of the insecticide and/or the repellent according to the present invention in view of the fact that it is effective to kill the eight-worm insecticidal effect and the washing durability. The microcapsule suspending agent is a dosage form formed by physically or chemically encapsulating an insecticide and a repellent into fine particles by a natural or synthetic polymer film-forming material, and then forming a preparation process by a certain formulation processing technique. The special sustained release and protection of microcapsule suspension can control the degradation of active ingredients by light, heat, air and microorganisms. The insecticide and/or repellent can be slowly released in a controlled environment. When it comes out, the efficacy period is greatly extended, and the mosquito-repellent fabric produced by the method of the present invention can have better killing/repelling durability and washing durability. The preparation technology of microcapsule suspension is prior art, and can be referred to "New Dyeing and Finishing Technology" (first edition 1999, ISBN ISBN 7-5064-1612-3/TS. 1293). The insecticidal mosquito microcapsule suspension prepared by the present invention is suitable for this technique.

The binder is a liquid dosage type binder having a solid content of 40-50%, and comprises one or two substances selected from the group consisting of polybutadiene emulsion, aqueous polyurethane emulsion, polyacrylic acid emulsion, polyacrylate. Emulsion or vinyl acetate emulsion. The water-based adhesive selected for use in the present invention has good compatibility with the cross-linking agent and the water-based insecticide selected in the present invention, and can form a large and complete unique network structure of the mesh, and the fiber A stable bond can be formed between them to produce high-strength adhesion, so that the mosquito-repellent product has excellent washing performance.

The crosslinking agent comprises one or two substances selected from the group consisting of: an epoxy polymer crosslinking agent, a methyl etherified hexamethylol melamine resin condensing agent crosslinking agent, and a polyfunctional aziridine crosslinking agent. a plurality of methylol crosslinkers, a crosslinker composed of a hydroxyethyl group and an epoxy group, a polycondensate acetate crosslinker of epichlorohydrin and hexamethylenediamine. The obtaining of the washing durability of the fabric finishing liquid of the present invention mainly depends on the selection type of the crosslinking agent, which is different from the prior art. For example, the methylated melamine resin used in the Chinese patent (97102295. X) is not selected in the present invention. Methyl etherified melamine used in the Chinese patent (publication number CN1473988A) was not used. The crosslinker selected for use in the present invention has good organic bonding with the adhesive of choice. Due to the good compatibility between the cross-linking agent, the aqueous insecticide and the repellent and the aqueous polymer binder, the cross-linking agent can be reacted with the reactive group of the polymer binder. The reaction, forming a large, unique, network-like molecular structure that surrounds and fixes between the fabric fibers and the surface, while the suspended particles of the pesticide and/or repellent are also physically Fixed on the fiber surface.

The formulation of the fabric finishing liquid of the invention may also be formulated with one or more auxiliary ingredients as follows according to the different requirements of the fabric product or the finishing processing method: Preservatives, dispersing emulsifiers, antifreeze agents, anti-flocculants may be added in a hot or cold finishing environment;

In order to improve the adaptability of the process and equipment in the finishing process, a foaming agent, an anti-migration agent, a wetting penetrant, and a defoaming agent may be added;

In order to improve the performance of the fabric, an antifouling agent, an ultraviolet protection agent, an antistatic agent, a detergent, and a softener may be added. The auxiliary auxiliary component of the present invention is preferably an ultraviolet protective agent, which can effectively improve the ability of the insecticide or repellent to resist ultraviolet decomposition and prolong the service life of the product.

The amount of addition and addition of these auxiliary ingredients are applicable to the prior art, and can be accomplished by those skilled in the art without creative labor. After the auxiliary ingredients are added, the sum of the components should be 100%.

The fabric finishing liquid for killing mosquitoes of the present invention does not use any organic solvent, so that there is no environmental pollution and production safety problem of the organic solvent in the industrial implementation process, and the production can be cleaned. Moreover, since the finishing liquid is an aqueous solution, the uniform dispersibility, the wettability, and the stability are good, the viscosity of the system is moderate, and the composition of the finishing liquid is simple, so that the preparation is convenient, and the ready-to-use method can be realized, and the finishing or using method is also simple. Short process, suitable for processing all types of fabrics, wide application.

The invention simultaneously designs a method for using the fabric finishing liquid, or at the same time, designs a finishing method for manufacturing a mosquito-repellent fabric product by using the fabric finishing liquid for killing mosquitoes of the invention. The fabric finishing method for killing mosquitoes designed by the invention is to use a printing and dyeing device to finish the fabric, using the fabric finishing liquid of the invention, after immersing, adjusting the roll pressure, so that the liquid carrying rate is controlled to be 30-150% into baking. Dry setting machine, drying and setting temperature is 60-250 °C. The printing and dyeing apparatus refers to a conventional printing and dyeing finishing apparatus, including a setting machine with a rolling mill, a pad dyeing machine or a resin finishing machine. When finishing, the fabric finishing liquid for mosquito repellent according to the present invention is prepared according to the formula, and the auxiliary material may be added to the basic fabric finishing liquid according to the requirements of the fabric product and the requirements of the fabric finishing process. Ingredients, put the prepared fabric finishing liquid into the dipping tank of the printing and dyeing equipment, so that the fabric to be finished is completely saturated through the dipping tank; then adjust the pressure through the roll of the equipment to control the liquid carrying rate at 30-150% (untreated) The basis weight of the fabric, rolling off the excess fabric finishing liquid, and finally drying and setting by the shaping machine, the drying setting temperature is 60-250 °C. After drying, a fabric product for killing mosquitoes can be obtained.

The finishing method of the present invention is very simple in practical use, and only requires the aqueous dosage form insecticide and/or repellent prescribed by the formula and the aqueous binder, crosslinking agent, water, or other auxiliary. The ingredients can be mixed and mixed, which can be used immediately and ready to be finished. It can be formed by one padding twice in the prior art to form a water-resistant and optionally oil-resistant film, which saves time and material. At the same time, the present invention does not need to dissolve the insecticide or the repellent in the organic solvent first, and thus does not cause environmental pollution of the organic solvent. The finishing method of the mosquito-repellent fabric of the present invention can be referred to as a dipping-rolling-drying process. The process is short, the production is easy, the cost is low, and the application amount of the fabric finishing liquid can be conveniently controlled, so that the insecticide and the repellent can be evenly distributed on the fabric, and the insecticide and the insecticide can be The repellent is dispersed in a large, complete network structure formed by the polymer binder and the crosslinking agent, surrounding and fixed on the surface of the fabric and the fiber surface inside the fabric and the same The product has excellent water wash resistance. For a specific product or special requirements or under certain conditions, the cleaning method of the mosquito-repellent fabric of the present invention can also adopt an impregnation-drying-air drying process to further simplify the equipment, reduce the cost, and facilitate implementation. ·

The mosquito-repellent fabric article of the present invention can be conveniently obtained by finishing the fiber fabric using the fabric finishing liquid or/and the finishing method of the present invention. According to the design characteristics of the mosquito-repellent fabric product and the type and characteristics of the mosquito-killing drug selected, the mosquito-repellent fabric product of the present invention may contain an insecticide and/or a repellent. The active ingredient is 10 to 1000 per square meter of fabric. A milligram, but preferably designed to meet the WHO recommended dosage requirements of 15 to 500. 0 mg per square meter of fabric, and the insecticide active ingredient is evenly distributed over the fabric article.

The cross-linking agent used in the invention has good compatibility with the aqueous binder, and the cross-linking agent can cross-link with the reactive group of the binder to form a large and complete unique network. The molecular structure, surrounded and fixed between the fabric fibers and the surface, and the suspended particles of the insecticide and/or repellent are also physically fixed in the fiber surface and the network structure during the finishing process. On the one hand, the particles of the insecticide or repellent exposed to the surface of the fabric, the biological/chemical activity can be unimpeded, resulting in a more complete and effective release; on the other hand, being coated with a binder and cross-linking The active ingredient in the granules of the insecticide or repellent in the network formed by the agent can be released to the surface of the fabric through the pores and channels characteristic of the network structure to provide sustained insecticidal insecticidal properties. The bio-test made by the Institute of Microbiology and Epidemiology of the Military Medical College of the Chinese People's Liberation Army in accordance with the standard procedure recommended by the WHO, the fabric of the fabric finishing liquid for repelling mosquitoes of the present invention, after 20 times of WHO standard washing, The knockdown rate of Anopheles stephensi (60 minutes) is over 90%; the mortality rate of Anopheles stephensi (24 hours) is over 80%, which meets the standards set by WHO, and is used by the mosquitoes of the present invention to kill mosquitoes. Fabric products finished with fabric finishing liquid, no obvious changes before hand and finishing, 'suitable for practical use. When necessary, the auxiliary component such as an ultraviolet protection agent, an antistatic agent, a softener, a antifouling agent, etc. may be added to the finishing liquid in an appropriate amount to further increase the aging resistance, antistatic property, softness and resistance of the textile product. Stain and other properties.

The mosquito repellent fabric or fabric article of the present invention comprises various fiber products such as woven fabric, knitted fabric, nonwoven fabric, etc.; the mosquito repellent fabric article of the present invention is particularly suitable for mesh fabrics, such as mosquito nets, gauze curtains, Screens, etc. Its use of thick materials includes cotton, hemp, wool, silk and polyester, acrylic, polypropylene, spandex and other chemical fibers.

What is not mentioned in the present invention is applicable to the prior art.

Specific embodiments of the invention are given below, but the invention is not limited by the examples:

Example 1

(1) A fabric finishing liquid is prepared. Its formula consists of:

00%。 Aqueous polyurethane emulsion containing 10% solids 10. 00% 00%。 Aqueous polyacrylate emulsion containing 50% solids 5. 00%

Epoxy polymer crosslinker 0. 15%

80% deltamethrin microcapsules with active ingredient content 1. 80%

The rest is water, and the above-mentioned raw materials are uniformly mixed in the batching tank to obtain a mosquito-repellent fabric finishing liquid.

(2) Manufacture of mosquito-repellent fabrics.

Fabric: 100% 8TEX, 36f, polyester mesh cloth with a weight of 30g / square meter;

The resulting fabric finishing liquid and the above-mentioned fabric to be finished were placed in a setting machine with a rolling mill. The fabric passes through the dipping tank of the equipment, then the rolling mill is padded, the pressure of the pressing roller is adjusted, the liquid carrying rate of the fabric is 40%, and finally the drying machine is dried, the drying temperature is 130 ° C, and the vehicle speed is 50 m/min. It can be industrialized to obtain a washable mosquito-repellent polyester mosquito net cloth. ·

(3) Finishing effect:

After the finishing: the effective content of deltamethrin on the fabric is determined by gas chromatography (the same as the gas chromatography) 42. 5 gram / square meter of fabric;

Biological test (standard procedure recommended by WHO) effect:

Knockdown rate of Anopheles stephensi (60 minutes) 100%;

Mortality rate of Anopheles stephensi (24 hours) 100%

After 20 times of WHO standard water washing (washing procedure according to the standard procedure recommended by WHO):

The effective content of deltamethrin on the fabric is: 36. 6 mg / square meter of fabric,

Knockdown rate of Anopheles stephensi (60 minutes) 100%;

The mortality rate of Anopheles stephensi (24 hours) was 88. 00%, which met the WHO standard for multiple washable insect-resistant fabrics.

Example 2:

(1) Prepare a fabric finishing solution. Its formula consists of:

40% aqueous acrylic emulsion 20. 00%

Loop it polymer crosslinker 0. 10%

Polycondensate of epichlorohydrin and hexamethylene diamine acetate crosslinker 0. 10%

Permethrin water-dispersible granules (50% active ingredient) 17. 00%

Detoxamine microcapsule suspension (20% active ingredient) 5. 00%

The rest is water.

(2) Manufacture of mosquito-repellent fabric products.

Fabric: 100% 75 DENIER, 36F, polyester mosquito net, weighing 30 g/m2. The obtained fabric finishing liquid and the above-mentioned fabric to be finished are placed in a finishing apparatus. The fabric passes through the dipping tank of the equipment, then the rolling mill is padded, the pressure of the pressing roller is adjusted, the liquid carrying rate of the fabric is 40%, and finally the dryer is dried, the temperature is 80 ° C, and the vehicle speed is 40 m/min. The same as Example 1.

(3) Finishing effect of fabric products:

After finishing: the effective content of the cypermethrin on the fabric is determined by gas chromatography 805. 2 mg / square woven fabric;

Biological test results (biological tests are standard procedures recommended by WHO):

Knockdown rate of Anopheles stephensi (60 minutes) 100%;

Mortality rate of Anopheles stephensi (24 hours) 100%

The effective content of deltamethrin on the fabric is determined by gas chromatography: 672. 4 mg / square meter of fabric, knockdown rate of Anopheles stephensi (60 minutes) 100%;

The mortality rate of Anopheles stephensi (24 hours) was 82. 00%, which met the WHO standard for multiple washable insect-resistant fabrics.

Example 3-6:

EXAMPLES 3-6 Preparation of fabric finishing liquid formulation composition, process conditions, types and specifications of processed fabrics, and effects of conditioning test (gas chromatography) are shown in Table 1. Example 1:

Example 7-9:

Example 7-9 Preparation of fabric finishing liquid Formula composition, use process conditions, type and specification of processed fabric, and finishing test (gas chromatography) effects, etc. See Table 2, and the same Example 1:

Table 1: Examples 3 - 6

3 4 5 6 Example number

Dosage (g / l)

Type

Polybutadiene emulsion 100

Polyacrylate emulsion 400 100

Adhesive

Waterborne polyurethane emulsion 50 50 50 Polyvinyl acetate emulsion

Weaving epoxy polymer crosslinker 15

Methyl etherified hexamethylol melamine tree

Crosslinking agent 1 0. 25 fat condensing agent crosslinker

Polyfunctional aziridine crosslinker 1

Liquid deltamethrin microcapsule suspension (100 100 50 with insecticide and 1% efficacy)

Repellent, permethrin water dispersing suspension (effective

400

Content 50%)

Auxiliary Agent UV Protectant 20 20 20 20 Water Balance Margin Balance Margin

100% polyester nets 100% polyester nets fabric types and specifications fabric, weight is 28 cloth, weight is 36 grams / square meter / square meter with liquid rate (%) 30 100 100 110 drying temperature (°C) 80 250 120 160 Drying time (seconds) 120 20 120 90 Finishing process conditions

Effective content of the fabric after processing (m.

1012 24. 2 28. 3 18. 84 g / square meter

Effective content on fabric after 20 washes

920 19. 7 22. 8 15. 1 (mg/m2) Table 2: Examples 7 - 9

Note: In Table 2, the effective content in the finishing process conditions of Example 7 is the test value of the two insecticides in the finishing liquid, respectively.

Claims

Claim

A fabric finishing liquid for repelling mosquitoes, the fabric finishing liquid mass percentage formula comprising:

Pesticide and / or repellent, 0. 05-40. 00%;

Adhesive, 5. 00% - 40. 00%;

Crosslinking agent 0. 025% - 1. 50 % ;

The rest is water, and the sum of the components is equal to 100%;

The insecticide is an aqueous dosage form insecticide having an effective content of 1%-50%, and the processed water type insecticide is selected from one or two of the following substances: deltamethrin, cyfluthrin, cyhalothrin , cypermethrin, permethrin and etofenprox;

2. The fabric finishing liquid for mosquito repellent according to claim 1, wherein the insecticide and/or repellent is a microcapsule suspending agent.

3. The fabric finishing liquid for mosquito repellent according to claim 1, wherein the fabric finishing liquid mass percentage formula may further comprise one or more auxiliary ingredients as follows: preservative, dispersion Emulsifier, antifreeze, anti-flocculant; foaming agent, anti-migrator, wetting agent, antifoaming agent; antifouling agent, UV protection agent, antistatic agent, detergent, softener.

The fabric finishing liquid for mosquito repellent according to claim 3, wherein the auxiliary auxiliary component is preferably a UV protective agent.

5. A method of using a fabric finishing liquid for repelling mosquitoes, which is to use a printing and dyeing apparatus to finish a fabric, using the fabric finishing liquid according to any one of claims 1 to 4, and after immersing, adjusting the roll pressure, The liquid carrying rate is controlled to 30-150% into the drying setting machine, and the drying setting temperature is 60-250 °C.

6. A fabric article for repelling mosquitoes, characterized in that the fabric article is a fiber fabric article obtained by finishing the fabric finishing liquid according to claim 1, 2, 3 or 4.

A fabric article for repelling mosquitoes, characterized in that the fabric article is a fabric article obtained by finishing the finishing method according to claim 5.

8. A fabric article for repelling mosquitoes according to claim 6 or 7, characterized in that the fabric article is a mesh fabric.

The fabric article for repelling mosquitoes according to claim 6 or 7, wherein the fabric article contains an insecticide and/or a repellent having an active ingredient of from 10 to 1000. 0 mg per square meter of fabric, especially per The content of the fabric is 15 to 500. 0 mg.

The fabric article for repelling mosquitoes according to claim 8, characterized in that the fabric article contains an insecticide and/or a repellent. The active ingredient is from 10 to 1000. 0 mg per square meter of fabric, especially per square meter of fabric. The content is 15-500. 0 mg.