TWI411717B - Insecticidal textile, method of making and method of using - Google Patents

Abstract

A microencapsulated insecticide-treated fabric and a method for treating the fabric with a composition comprising at least one microencapsulated insecticide and at least one polymeric binder are provided. The coated or partially coated fabric maintains a sufficient amount of microencapsulated insecticide on the fabric surface to kill or repel insects, particularly mosquitoes, even after repeated washings. The fabric can be made into a net, clothing, and the like, for protection against insect-transmitted diseases such as malaria. A fabric treatment composition containing a suitable amount of at least one microencapsulated insecticide and at least one polymeric binder is also provided.

Description

Insecticidal textiles, manufacturing methods and methods of use

The field of the invention relates to textile materials, such as woven fabrics, woven products, mesh materials, mosquito nets, foils, crepe, tarpaulins, or wall materials, which have been impregnated or coated with at least one microencapsulated insecticide. The insecticide is washable or remnant, and maintains the bioavailability of the pesticide; a method of making the material; and a composition for treating the material.

In many countries, especially in tropical countries, many infectious diseases (such as malaria, dengue and yellow fever, lymphatic filariasis, and Leishmania) that cause humans and animals to weaken or even die are transmitted through insects. For example, outside the neonatal period, parasitic mosquitoes (Plasmodium) cause more than 25% of deaths in children. In some parts of Africa, malaria has been ranked first by the World Bank in terms of loss-adjusted life-years. Health services and drug resistance that are not sufficiently developed and funded have hampered many medical efforts to improve the situation. More recently, efforts have been focused on controlling the spread of insects.

Methods for controlling these insects include treating the surface of barracks and houses, air spraying, and bathing with nets and nets. Insecticide-treated nets and fabrics have evolved into promising tools since the 1980s for the prevention of malaria in affected countries. Strong and safe synthetic pyrethroids such as chlorpyrifos, chlorpyrifos, xeronine, alphamethrin, and sylvesine, nowadays used to borrow textile materials Immerse in the insecticide emulsion or suspension, or spray it onto the net to handle mosquito nets and cockroaches.

The use of pyrethroid-based insecticides in "impregnation" mosquito nets and cockroaches as a means of killing mosquitoes and other insects that inhabit the treated material is well known. This concept is based on the fact that when attracted by a nearby host, such as a person sleeping under a mosquito net, a blood-sucking arthropod may be exposed to an insecticide-treated receptor. This promotes the control of pests such as mosquitoes.

Because people tend to clean their mosquito nets, cockroaches, and the like again and again, it is desirable to increase the durability of the treated materials by making the insecticide resistant to washing to some extent. Studies have shown that long-acting insecticide-treated nets (LLITN) are used to prevent carryover of protozoa compared to nets that require re-treatment or re-dip bathing with insecticides after only one or two washes. The disease is more reliable. However, conventional insecticide compositions do not provide sufficient washfastness, and the present invention is directed to the answer to this problem.

The present invention provides a microencapsulated insecticide-treated fabric, and a method of treating, coating, or bathing a fabric with a composition comprising a microencapsulated insecticide and a polymeric binder. The treated fabric maintains a sufficient amount of microencapsulated insecticide on the surface of the fabric to kill or repel insects, particularly mosquitoes, even after repeated washing. The fabric can be made into nets, clothing, and the like to avoid insect-borne diseases such as malaria. There is also provided a microencapsulated insecticide treating composition comprising a polymeric binder for treating a fabric, and a field kit comprising a first pouch having at least one polymeric binder, And a second sachet having at least one microencapsulated insecticide.

While the invention may be embodied in a variety of specific forms, the specific embodiments are described in detail below, and it should be understood that the disclosure of the invention Specific specific aspects or examples discussed.

Accordingly, the present invention provides an insecticide treating composition comprising at least one polymeric binder and at least one microencapsulated insecticide. In one embodiment, the polymeric binder and the microencapsulated insecticide are provided together in separate pouches and are combined by water at the end user to form an aqueous treatment composition. In another embodiment, the polymeric binder is an ethyl vinyl acetate copolymer. In one embodiment, the binder is substantially free of polyurethane, such as dispersed polyurethane or water-soluble polyurethane. In a further embodiment, the insecticide is a pyrethroid such as xeronine. In another embodiment, the insecticide is an organophosphate such as atrazine. In one embodiment, the microencapsulated insecticide and the polymeric binder combine or interact with one another to form a coating on the fabric, which in one particular aspect is a partial or discontinuous coating. The fabric is obtained by dipping the fabric into a treatment composition, such as an aqueous solution composition comprising at least one microencapsulated insecticide and at least one suspension of a polymeric binder, and then drying the wetted fabric without the need The mixture is cooked at a high temperature and is dipped or partially (discontinuously) coated. The polymeric binder binds or adheres to the fabric and allows the microencapsulated insecticide to continue to adhere to the fabric, even after several washes and rinses with detergent, thereby extending the insecticidal effectiveness of the fabric.

The fabric treatment of the microencapsulated insecticide treatment composition described herein reduces the rate at which the pesticide is removed from the treated web during washing. A fabric treated with the microencapsulated insecticide and the binder of the present invention provides a longer-lasting insect than a fabric treated with a composition lacking a combination of a microencapsulated insecticide and a polymeric binder. Knockdown and lethal effect. Wall materials and other articles treated with the inventive composition exhibit high insecticidal effects.

The method provided herein is a simple method which combines the use of a polymeric binder and a microencapsulated insecticide to attach the insecticide to mosquito nets and other fabrics. The use of the method described herein results in a product that is superior to the mosquito nets available today and that provides a more durable and effective insecticidal activity or effect on the surface of the mesh or fabric. The use of the treated webs and fabrics provided herein results in more effective control of the harmful and/or disease vector arthropods and is associated with a reduction in disease transmission.

Insecticide treated or bathed fabrics can be used in the manufacture of a variety of end user articles such as, but not limited to, nets, clothing, bedding, crepe, and tents. Alternatively, the fabric and existing fabric products can be treated and reprocessed with the pesticide composition using the methods described herein. The insecticidal treatment composition of the present invention (an aqueous solution composition comprising at least one microencapsulated insecticide and at least one binder) is also suitable for use in wall treatment and other residual spraying applications. Fabric bathing or treatment using the pesticide composition produces a product that is superior to the currently available insecticide bath, treatment or coating process during the life of a particular treated web. It is easier to use and lower in cost. In addition, the materials used in the present method are less dangerous and more environmentally acceptable than some of today's available. This is especially due to the microencapsulation of the active ingredient and its presence in an aqueous solution based formulation. This is especially important when, for example, the pesticide composition of the pesticide is being manipulated by humans, as contact with the exposed skin can result in temporary itching, stinging, burning, or numbness known as skin paresthesia. Skin sensation involving face is also known as "subjective facial sensation" or SFS.

Accordingly, the present invention provides a method for treating a fabric to impart its insecticidal insecticidal properties comprising a liquid composition in an insecticidally effective amount comprising at least one microencapsulated pesticidal active ingredient and at least one polymeric binder The fabric is treated. In one embodiment, an aqueous solution treatment composition is used. The thread of the treated fabric is thus coated or partially coated using not only the microencapsulated insecticidal active ingredient but also the polymeric binder. In one embodiment, the portion is coated on a discontinuous coating such as on at least one side of the substrate. Those skilled in the art will appreciate that although the coating is discontinuous, for example, on a micron level, the average load per square meter of the applied binder and pesticide can be substantially the same throughout the treated substrate. Or within statistically acceptable indicators. The utility of the polymeric binder is to effectively "stick" the microcapsules containing the insecticide to the individual threads of the fabric to increase the adhesion of the microencapsulated insecticide material to the fabric, while providing washability to some extent. Sex while maintaining the bioavailability of pesticides. Although theoretically not wishing to be combined, the interaction of the polymeric walls, polymeric binders, and fabrics of the Xianxin microcapsules increases the washfastness of the treated fabric.

The present invention thus provides a woven or non-woven fabric material which is coated or partially coated with a film of a polymeric binder having adhesion to the microencapsulated insecticidal active. In one embodiment, the present invention provides a woven or non-woven fabric material having a filament that is discontinuously coated or partially coated with a polymeric binder and a microencapsulated pesticidal active. The fabric may be in the form of a piece of furniture fabric, such as a mattress, bed sheet, mosquito net, furniture cover, or a cover that can be mixed into a mat, carpet or other floor or wall. Or the fabric can be used for packaging purposes, such as sacks for storing and transporting materials, including foods that are susceptible to pests and filths. In addition, a flooring material such as a carpet, or a wall material such as a wall treated with the material, is applied by such a composition comprising at least one polymeric binder and at least one microencapsulated insecticide. Insufficient insect control with increased insects is provided.

In this regard, in another embodiment, the invention provides a method of combating pests in a living comprising applying an insecticidally effective amount comprising at least one microencapsulated pesticidally active ingredient and at least one polymeric binder Liquid composition to the wall or floor surface of such accommodation.

The fabric or web to be treated may be natural fibers such as cotton, raffia, jute, linen, siberian, hessian, or wool, or for example polyamide, polyester, poly Made of synthetic fibers of propylene, polyacrylonitrile, or the like. Polyester is especially suitable.

The web or fabric which has been bathed, treated, coated or partially or discontinuously coated according to the present invention may comprise an active ingredient of the insecticide in an amount of from about 0.001% by weight to 95% by weight. Generally, pyrethroid insecticides such as xeronine are used in an amount of from 0.025 weight percent to 0.33 weight percent (pesticide weight/fabric weight). In another embodiment, the pesticide active ingredient is applied to the target fabric in an amount of from 10 to 100 mg ai/m ² (about 30-40 g/m ² of net weight).

The method of the present invention can be carried out using a liquid composition comprising any suitable microencapsulated insecticide which is effective against pests to be controlled, especially adult mosquitoes and flies.

A polymeric binder material particularly suitable for use in the present invention is an Atlox ^{T M} SemKote series of polymers available from Uniqema, such as ethyl vinyl acetate copolymers (E-100, E-105, E-115, etc.) ), polyvinyl acetate homopolymer (P-140, P-145), and acrylic and vinyl acrylic materials. The specific characteristics of the suitable polymeric binder used are (1) compatible with the microencapsulated insecticide composition used (especially in the form of polyurea as a wall); (2) sufficient to be miscible with water. While standard aqueous solution based application methods are feasible (for example, a binder with suitable miscibility can be miscible with water in an amount of at least 10 weight percent; more particularly at least about 30 weight percent) (3) it has a glass transition temperature (typically 0-15 degrees Celsius) that allows for a simple air drying without the need for a hot ripening step; and (4) it is capable of imparting sufficient adhesion to the substrate for the microcapsules. The amount of nature is used to provide the desired washfastness of the treated fabric while maintaining the bioavailability of the pesticide.

The optimum application rate for a particular adhesive for a particular microencapsulated insecticide, a specific target substrate, and an insect pressure condition group as indicated above may be applied to a target substrate or, for example, a polyester mosquito net. A simple series of studies on fabrics is easily determined without undue experimentation. In the treatment of target substrates such as fabrics or walls, the use of this optimum ratio generally results in a partial or discontinuous coating of the adhesive while achieving a target load per square meter of the active ingredient. Overloading the adhesive to achieve a continuous adhesive coating or film can result in fabric stiffness and loss of bioavailability of the pesticide.

For example, it has been found that a target load of 25-950 mg of actual solid polymerizable binder per square meter of fabric provides an important balance of bioresidability of this washfastness while preserving the availability of fabrics such as nets. More particularly, the target load of 25-600 mg per square meter of fabric; more specifically from 100 to 400 mg; or from 125 to 350 mg of actual solid polymerizable binder is used. A binder load of from 100 to 400 mg per square meter, more particularly about 350 mg, is particularly suitable for use in polyesters.

If necessary, the polymeric binder described herein can be combined with other known ingredients such as plasticizers, emulsifiers, surfactants, stabilizers (including UV protectants), fillers, antioxidants, fungicides, An antimicrobial agent, an anti-foaming agent, a drying aid, a flattening agent, a pigment, or other composite auxiliary agent is compounded or mixed therein. In addition, thickeners or thickeners may be added to the polymeric binder to control the viscosity of the binder to achieve proper fluid properties for the particular application desired. Such materials are well known in the art.

Microencapsulated insecticidal active ingredients suitable for use in treating compositions and coated fabrics in accordance with the present invention are prepared by any suitable technique known in the art. For example, a variety of processes for microencapsulating materials have previously been developed. These processes can be divided into three categories - physical methods, phase separation, and inter-interface reactions. In the category of physical methods, the microcapsule wall material and the core particle system are physically brought together, while the wall material flows around the core particles to form microcapsules. In the class of phase separation, microcapsules are formed by emulsifying or dispersing a core material in a continuous phase that cannot be mixed, wherein the wall material is dissolved and physically (eg, by coacervation) from continuous The phase separates and deposits around the core particles. In the category of inter-interface reaction, the microcapsules are formed by emulsifying or dispersing a core material in a continuous phase which cannot be mixed, and then causing a polymerization reaction between the interfaces to occur on the surface of the core particles. The concentration of the pesticidal active ingredient present in the microcapsules can vary from 0.1 to 60 weight percent of the microcapsules. Generally suitable microencapsulated insecticides are particles having a diameter between 0.1 and 1000 m.

In one aspect, suitable microcapsule wall materials are selected from the group consisting of polyurea, amino resins, polyurethanes, and polyamines.

In one embodiment, a polyurea microcapsule containing a suitable insecticide is prepared, as exemplified in U.S. Patent No. 4,285,720, which relates to the use of at least one polyisocyanate, such as polymethylene polyphenyl isocyanate (PMPPI) and / or toluene diisocyanate (TDI) as a prepolymer. In the production of polyurea microcapsules, the wall formation reaction is carried out by heating the emulsion until the isocyanate polymer is hydrolyzed to produce a high temperature point at the interface to produce an amine which then reacts with the unhydrolyzed polymer to form a polyurea microcapsule wall. Triggered.

The present invention relates to, but is not limited to, the following active insecticides for use in the treatment of compositions and fabrics, including those selected from the group consisting of pyrethroids and pyrethroids; azoles, benzamides, two Derivatives; chloro-based soot; nitroguanidine derivatives; triazoles; organic phosphates; pyrrole; pyrazole; phenylpyrazole; dimercaptopurine; biological/fermentation products, for example, including indomethacin or abatatin Macrolide; plant essential oils such as d-limonin and clove oil; carbamates, and combinations of such compounds.

Thus specific microencapsulated insecticides include carbamates such as dandan or chlorpyrifos; or organophosphate insecticides such as marathon, atrazine, or chlorpyrifos; or pyrethrin or pyrethrum Semi-ester insecticides, such as arlenin, bioallethrin, S-Bai Lenin, neopyrnamin, Fenhuali, Baishenning, Saihuning, Yafening, Dinin , cyhalothrin, or cylonine. Pesticide mixtures can be used for reasons of improved effectiveness and resistance management. In one embodiment, a microencapsulated insecticide mixture with a non-microencapsulated insecticide can be used. A specific example is a microencapsulated Xeronine mixture with non-microencapsulated Tyranol.

In one aspect, microencapsulated insecticides suitable for use in the treatment compositions and treated fabrics of the present invention include tefluthrin, benzinone, xalonine, resmethrin, Dimanning, Saihuning, cyphenothrin, Saifuning, Dinning, Taosson, Fenoke, Delasuo, Dichlorophenol, Methyl Isothiocyanate, Pentachlorophenol, Teto Tralomethrin, kefanip, fenfenil, neonicotinoid, and combinations of these compounds. Examples of suitable novel nicotines include, but are not limited to, acesulfame, nitenpyram, idacaine, cotinine, arsenic, and thiacloprid. A class of pesticides specific for use in microcapsules are cyhalothrins, including Xeronine and gamma cyhalothrin. Microencapsulated insecticides are employed in proportions depending on their level of activity for the desired end use. In one embodiment, a suitable ratio of pesticides is the current ratio given by the generic product label on the pesticide product containing such insecticide. For example, ICON has been found to be available from Syngenta. The CS brand microencapsulated Selone is appropriate.

On the one hand, target pests include those belonging to the order Diptera (Diptera, including mosquitoes, scorpion insects, ticks, tsetse flies, and other scorpions), Hemiptera (including bedbugs), and Diptera (Siphonaptera, an insect containing a mites). Among the target pests, Dictyoptera (including cockroaches), Coleoptera (including stored grain pests), Lepidoptera (including aphids), and arachnids (including cockroaches and cockroaches) may also be mentioned. The invention is particularly suitable for controlling flying insects, such as mosquitoes.

The treatment composition used in the present invention may also contain a wetting agent, an emulsifier, or a dispersing agent, which may be cationic, anionic or nonionic. Suitable cationic agents include, for example, quaternary ammonium compounds such as cetyltrimethylammonium bromide. Suitable anionic agents include, for example, soaps; salts of aliphatic monoesters or sulphuric acids, such as sodium lauryl sulfate; salts of sulfonated aromatic compounds, such as sodium dodecyl sulfonate, lignosulfonic acid ( Lignosulphonate) sodium, calcium or ammonium, or butyl naphthalene sulfonate, and a mixture of diisopropyl and triisopropyl naphthalene sulfonate. Suitable nonionic agents include, for example, the condensation products of ethylene oxide with fatty alcohols such as oleyl alcohol or cetyl alcohol, or with alkyl phenols such as oleoresin, nonylphenol and octylcresol. Other nonionic agents are derived from incomplete esters of long chain fatty acids and hexitol anhydrides, condensation products of the incomplete esters with ethylene oxide, and lecithin.

In one embodiment, the fabric treatment composition used in the form of an aqueous suspension or emulsion is typically provided in the form of a concentrate containing a high proportion of one or more active ingredients prior to use. It is diluted with water (for example, a capsule suspension can be mentioned). These concentrates often need to be protected from prolonged storage and can be diluted with water after storage to form aqueous solutions which are maintained homogeneous for a sufficient period of time so that they can be applied by bath or by conventional spraying equipment.

In another embodiment, a separate polymeric adhesive pouch is provided along with a separate package or sachet containing a microencapsulated insecticide composition (e.g., Icon 10CS, Icon 2.5 CS, or the like). These materials are then combined with water in a processing vessel or tank to form the final treatment composition.

Accordingly, the present invention further provides an in-situ use kit for treating or reprocessing a fabric material to impart anti-slip insecticidal properties comprising a first pouch containing a predetermined amount of at least one polymeric binder And a second sachet comprising a predetermined amount of an insecticidal composition comprising at least one microencapsulated insecticide. As indicated above, these materials are then diluted by combining with water in a processing vessel or tank to form the final treated composition. The fabric is treated with the treatment composition and imparts anti-wash insecticidal properties by spraying, dipping, or dipping the fabric in the treatment composition.

In one embodiment, the final treatment composition may comprise from 1 to 70 weight percent of the pesticidally active ingredient, and more specifically from 5 to 50 weight percent, in microencapsulated form. They may also contain from 1 to 70 weight percent of polymeric binder, and more specifically from 1 to 25 weight percent.

When the composition is diluted with water prior to use, it can be applied to the fabric by spraying or dipping the fabric in a bath containing the diluted composition. The fabric may be a delicate and fabricated fabric such as a crepe (especially a crepe), a bed sheet, a furniture cover, or the like, or may be a new fabric. In the latter case, the microencapsulated insecticide treatment can be carried out at the end of the manufacturing process by placing the microencapsulated pesticidal composition in a final treatment bath.

The leaching of the insecticide from the fabric during the washing process not only reduces the insecticidal effectiveness of deposition on the fabric, but also causes the insecticide to flow into the wash water. By the use of the method and composition of the invention (microencapsulated insecticide plus polymeric binder), the washfastness of the insecticide on the treated fabric can be significantly improved, as in contact with the treated fabric. The residual knockdown and lethal effects of the target insect are shown.

The invention is illustrated by the following examples. An example of clarifying a composition having a specific active ingredient can be considered as exemplifying a composition in which the active ingredient is replaced by the other having similar effects.

Example Example 1

The treated polyester mesh was prepared as follows: A 60x60 polyester mesh sample was processed in the laboratory using 1 liter of treatment solution. The composition of the 1 liter treatment solution is as follows: 16.2g Icon 10CS ^* 30.0g Atlox SemKote E-105 ^{* *} (55% solid binder) 953g deionized water

The solution was prepared in a plastic bottle, and the sample web was carefully folded and wound and placed in a solution, and then the cap was sealed. The bottle was then rolled for 5 minutes, after which the net was carefully removed. Excess liquid was removed using absorbent paper and the web was then hung to dry for 24 hours at room temperature.

The target load is 50 mg a.i. per square meter (ie 0.5 g Icon 10CS as a 10% formulation) 350 mg solid polymer (ie 0.63 g Semkote E105 in 55% solution).

^* The target load of Xeronine is 50 mg ai per square meter of mesh, but the solution is "overloaded" Icon due to losses suffered during laboratory application.

^* Adhesive retention studies have been shown to be used in the solution of this application method. This level of binder results in retention of only about 0.35% solid binder per square meter.

Example 2

The web prepared according to the procedure of Example 1 was used in the next step except that the "Iconet" network lacked a binder. The washing and bioassay cycles were carried out in a similar manner to the publication document WHO/CDS/WHOPES/GCDPP/2005.11. The knockdown and lethal percentages of Aedes albopictus after exposure to an experimental mesh formulation containing Icon CS and polymer binders are shown below:

Example 3

The treated polyester mesh was prepared as follows: a complete polyester mosquito net (75 denier, 130 X 180 X 150 cm) by hand impregnation, with Icon 2.5CS (25 g/L Xeronine) and polymer binder Handled as follows.

The required amount of insecticide (target dose 50 mg ai/m ² ) and the bonding dose were weighed out and pre-mixed. The mixture was then added to 500 ml of deionized water to ensure that all of the formulation and binder were in solution. A complete mosquito net is then added to the solution and flipped. After about 3 minutes of flipping, the mosquito nets were removed without being wrung out and laid flat on the lab floor. After a drying period of 12-16 hours, the mosquito nets were folded and stored in aluminum foil.

Example 4

The mesh prepared according to the procedure of Example 3 is similar in efficacy to those recommended in "Guidelines for laboratory and field testing of long lasting insecticide treated mosquito nets" (WHO/CDS/WHOPES/GCDPP/2005.11.). The method was evaluated except that the "Icon CS only" network lacked adhesives and the pesticides in KO-Tab were not microencapsulated.

Example 5 -

Following the known procedure, the microencapsulated attasone can be dissolved in a suitable solvent to form an aqueous solution-based emulsion having the desired droplet size, using the appropriate emulsifier and dispersion aid. The agent is prepared by including a suitable monomer in an oil and/or an aqueous phase and then polymerizing between the interfaces at the emulsion interface. This causes the flowing solution having the active ingredient to be enclosed in the microcapsules in which the polymer is the outer wall and suspended in the continuous phase based on the aqueous solution.

The mesh was prepared following the procedure of Example 3, except 20 g of Semkote E105 dissolved in 500 ml of treated water, in addition to 20 ml of the yates 300 g/l CS formulation. This provides a web with 517 mg a.i. and 948 mg solid bond agent per square meter of mesh.

The foregoing description and examples are for illustrative purposes only and are not intended to

Claims (15)

A woven or non-woven fabric material made of synthetic fibers or a mixture selected from the group consisting of polyamide, polyester, polypropylene or polyacrylonitrile fibers, the filament of the material being at least one polymeric binder, and 0.025% (w/w) to 0.33% (w/w) of at least one microencapsulated pesticidal active substance selected from the group consisting of pirimiphos-methyl and lambda cyhalothrin partially or discontinuously Ground coating, wherein the microcapsule wall of the microencapsulated insecticide is selected from the group consisting of polyurea, amino resin, polyurethane and polyamine. A fabric material according to claim 1 wherein the binder is present in a load of from 25 to 950 mg per square meter of fabric material. The fabric material of claim 1, wherein the polymeric binder is miscible with water in an amount of at least 10 weight percent. The fabric material of claim 1, wherein the polymeric binder has a Tg of from 0 to 15 degrees Celsius. The fabric material of claim 1, wherein the polymerizable binder is an ethyl vinyl acetate copolymer. A fabric material as claimed in claim 1 wherein the fiber is a polyester. The fabric material of claim 1, wherein the microcapsule wall of the microencapsulated insecticide is polyurea. A method for treating a fabric comprising treating the fabric with a pesticidally effective amount of a liquid composition comprising at least one microencapsulated pesticidal active ingredient selected from the group consisting of utaxone and xeronine, and at least one polymeric binder , The fabric is thus rendered resistant to insecticidal properties; wherein the microcapsule wall of the microencapsulated insecticide is selected from the group consisting of polyurea, amino resins, polyurethanes, and polyamines. The method of claim 8, wherein the binder is applied in an amount to provide a binder load per square meter of fabric from 25 to 950 mg. The method of claim 8, wherein the microcapsule wall of the microencapsulated insecticide is polyurea. The method of claim 8, wherein the polymerizable binder is an ethyl vinyl acetate copolymer. The method of claim 8, wherein the fabric is a polyester open-meshed mesh. A method of combating pests at a residence comprising suspending a fabric as claimed in claim 1 in a dwelling such that it is accessible to pests. A method of treating a fabric made from synthetic fibers or a mixture selected from the group consisting of polyamide, polyester, polypropylene or polyacrylonitrile fibers, the method comprising combining water (i) containing at least one of a predetermined amount a first sachet of a polymeric binder, and (ii) a second pouch comprising a predetermined amount of a pesticidal composition comprising at least one microencapsulated insecticide component selected from the group consisting of attatrozine and Xelonine Forming a treatment composition to form a treatment composition; and treating the fabric by spraying, dipping, or dipping the fabric in the treatment composition, whereby the fabric is imparted with anti-washing insecticidal properties; wherein the microcapsule is killed The microcapsule wall of the insecticide is selected from the group consisting of polyurea, amino resin, polyurethane, and polyamine. A method of living in a pest and pest control comprising applying a pesticidally effective amount of a liquid composition comprising at least one microencapsulated insecticidal active ingredient selected from the group consisting of attatrozine and xeronine, and at least one polymeric binder, The wall or floor surface of the dwelling, wherein the microcapsule wall of the microencapsulated insecticide is selected from the group consisting of polyurea, amino resin, polyurethane, and polyamine.