JPH0721189Y2 - Rug - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention provides a rug with a long-lasting effect and insecticidal property and / or insecticidal property, particularly a mat, a felt carpet, a needle carpet, a pile carpet. Etc.

<Prior Art> Conventionally, for a rug to which an insect repellent is applied, a solution in which the insect repellent is dissolved in a solvent or a dispersion liquid in which a dispersant is dispersed is applied to the rug by a spray method or a dipping method.

<Problems to be solved by the invention> In the conventional fibers to which the insect repellent is applied, the durability of the insect repellent is controlled by the volatility or sublimability of the insect repellent, or the insect exerts its effect by touching the medicine. It was

However, those provided with a volatile or sublimable drug have drawbacks that the effect persistence cannot be adjusted, the concentration cannot be adjusted, and the effect disappears by falling off from the rug. For example, pyrethroid compounds and organic phosphorus compounds are used as anti-mitic agents or acaricides. Further, these compounds are drugs used as pesticides and the like, and there is a problem in terms of safety with respect to substances such as rugs that are used in the human body and familiar to them. Furthermore, in the case of using insect repellents such as mites, since it has no insecticidal effect but has an effect of keeping insects away, the effect on the human body is also smaller than that of insecticides, but in order to exert repellent effect. The drug has drawbacks such as being volatile and having a short duration of effect because it is sublimable.

The present invention provides a rug that has a long-lasting effect of preventing ticks and has a low detachability from the rug.

<Means for Solving the Problems> That is, the present invention is directed to a surface of a fiber on which a rug is composed of a sustained-release insect repellent and / or insecticidal agent microencapsulated by a water-insoluble substance. The rug is characterized in that it is fixed to the resin.

In the present invention, an insect repellent consisting of a volatile or sublimable insecticidal substance and / or an insect repellent substance, for example, a sustained release discomfort insect repellent obtained by microencapsulating an organic amide compound with a water-insoluble substance It is characterized in that an agent and / or a drug form having an insecticidal effect (hereinafter, this form may be simply referred to as microcapsule) is used. The microcapsules preferably have a half-life of the active ingredient of 30 days or longer under the conditions of a temperature of 20 ° C. and a humidity of 65% RH. The size of the primary particles of the microcapsules is preferably an average particle diameter of 1 to 50 μm.

In the rug of the present invention, the microcapsules containing a sustained-release repellent or a drug having an insecticidal effect are fixed to the surface of the fibers constituting the rug by a resin. Polyester resin,
Polyvinyl alcohol resin, vinyl ether / maleic anhydride copolymer, polyethylene, polyacrylamide polymer, polyamide resin, polyacrylic acid resin,
At least one resin selected from the group consisting of carboxymethyl cellulose, starch and modified starch can be used.

Then, as a method of fixing the microcapsules to the fibers constituting the rug with a fixing resin, first, if the fixing resin used is a water-soluble resin, it is an aqueous solution, and if it is a water-insoluble resin, an aqueous dispersion. Then, the microcapsules are dispersed in this aqueous solution or aqueous dispersion to prepare a composition liquid,
The composition liquid can be fixed by applying it to the fibers constituting the rug by a spraying method or a dipping method and then heating and drying. The drying temperature at this time is 80-180
C. is preferable, and more preferably, drying is performed in an atmosphere of 120 to 150.

In the present invention, the concentration of the microcapsules in the composition liquid is preferably 0.1 to 10% by weight, and the concentration of the fixing resin is preferably 0.1 to 10% by weight. Outside of these concentration ranges, the processing operation for applying a desired adhesion amount to the fibers is complicated, and the processing operations such as drying and defibration after the adhesion are complicated. The amount of microcapsules containing the repellent agent and / or the insecticidal agent is 0.2 to 10% by weight, preferably 0.5 to 3% by weight, based on the weight of the mat. If the adhered amount is small, the duration of the repellent effect and / or insecticidal effect is short, and if the adhered amount is large, the apparent repellent effect and / or
Alternatively, it is good in that the duration of the insecticidal effect is extended, but it is not added in an excessively large amount from the viewpoints of economic efficiency and influence on the use environment.

In the present invention, examples of rugs to which microcapsules are applied include mats, mats made of polypropylene fibers, folding tables, and the like, and, for example, polyester fibers, polyamide fibers, polyolefin fibers, polyacrylic fibers, polyvinyls. Felt carpets, needle carpets, pile carpets, etc. made of one or more kinds of fibers selected from the group consisting of alcohol fibers, acetate fibers, chemical fibers such as regenerated cellulose fibers, plant fibers, animal fibers, etc. .

The rug of the present invention has a repellent effect and an insecticidal effect that lasts for a long period of time, and prevents various adverse effects caused by various mites such as mites, flea, larvae, mosquitoes, hoopworms, and horse flies. can do.

Next, the rug of the present invention will be described with reference to the drawings. FIG. 1 is a diagram schematically illustrating a cross section of a pile carpet as an example of the rug of the present invention, where 1 is a pile portion, 2 is a microencapsulated repellent applied to the pile portion of the rug, and / or Or, a drug having an insecticidal effect, and 3 indicates a base cloth.
Here, the mode in which the microcapsules are fixed to both the fibers constituting the base cloth and the pile section is illustrated, but the mode in which the microcapsules are fixed only to the base cloth section or only to the pile section is also within the scope of the present invention. That is clear.

<Action> By microencapsulating the repellent of the present invention or a drug having an insecticidal effect on a rug, the drug becomes sustained-release, and the effect is sustained for a long time. You can

<Examples> Next, the embodiments of the present invention will be described with reference to specific examples, but the present invention is not limited to these examples.
Parts and% in the examples relate to weight unless otherwise specified.

Example 1 2 parts of a mite repellent (65 days at room temperature required to halve 10 mg of the active ingredient is 65 days) obtained by microencapsulating an organic amide compound-based mite repellent with a water-insoluble resin, 2 parts of a water-soluble polyester resin, and A composition liquid consisting of 96 parts of water was prepared. This mite repellent composition liquid was applied to a spread mat made of grass with a mite repellent amount of 1.5% relative to the spread mat by a spray method, and then dried in a hot air dryer adjusted to 100 ° C.

For comparison, an organic amide compound-based mite repellent that is not microencapsulated was dispersed in water, and a spreader was prepared by spraying the rug with a mite repellent amount of 1.5% by the same spray method as in the example. Ivy.

Lay these mats on a tatami mat, and under conditions of 25 ° C and 80% RH, (1) 10 days, (2) 30 days, (3) 60 days,
The attenuation of the mite repellent was examined at three levels. As a result, in the mattress of Comparative Example, the amount of the tick repellent was reduced to 0.1% or less on the 30th day, and the repellent effect was almost lost. On the other hand, the mattresses of Examples had a sufficient repellent effect even on the 60th day.

Example 2 3 parts of a mite repellent (65 days at room temperature required to halve 10 mg of the active ingredient is 65 days), 3 parts of a water-soluble polyester resin; A composition liquid consisting of 94 parts of water was prepared. This mite repellent composition liquid was applied to the surface of a pile carpet by a spray method in an amount of 2% as a mite repellent amount, and then dried in a hot air dryer adjusted to 100 ° C. The pile carpets were laid between the plates and allowed to stand for 60 days at a temperature of 25 ° C and a humidity of 80% RH to examine the attenuation amount of the mite repellent. As a result, the amount of repellent having a sufficient repellent effect remained on the 60th day.

<Effect of Device> By attaching the microencapsulated insect repellent or insecticidal agent of the present invention to the fiber together with the resin, the insect repellent and / or the insecticidal agent can be attached to the fiber. Since the activity is improved and the drug is gradually released over a long period of time, an insect repellent fiber in which the effect of the drug on insects is maintained over a long period of time can be obtained.

[Brief description of drawings]

FIG. 1 is a diagram schematically illustrating a cross section of a pile carpet as an example of the rug of the present invention. 1 ... Pile part, 2 ... Microencapsulated repellent composition, 3 ... Base cloth.

Claims (1)

[Scope of utility model registration request] 1. A sustained-release insect repellent and / or insecticidal agent microencapsulated with a water-insoluble substance is fixed on the surface of fibers constituting a rug with a resin. Rug to be