insect repellant

Abstract

The object of the present invention is to provide an insect repellent which has high insect repelling efficacy and which can clearly show the end point of use because the volatilization of the volatile agent at room temperature and the sublimation of the sublimation substance are completed almost simultaneously, and is excellent in manufacturability. The present invention solves the above-mentioned problems by providing the following insect repellent, that is, an insect repellent characterized in that it is an insect repellent containing a drug carrier in a flexible bag, and the drug carrier is selected from One or two normal-temperature volatile agents selected from ethynthrin, transfluthrin, profluthrin, and metofluthrin are supported on a sublimable substance at 0.5 to 2.0% by weight Both sides or one side of the flexible bag is Japanese paper or non-woven fabric with a permeable weight of 10-50 g / m2 laminated with a drug-permeable film with a wall thickness of 10-30 μm. In the case of one side Next, the other surface is formed of a drug-impermeable film, and at least a part of the drug carrier is in contact with the inner surface of the flexible bag even if the drug carrier shrinks with the sublimation of the sublimation substance, The end of use can be confirmed by visually observing the disappearance state of the above-mentioned drug carrier.

Description

technical field [0001] The present invention relates to an improvement of an insect repellant, which is realized by accommodating a drug carrier in a flexible bag, and the drug carrier is constituted by carrying a sublimation substance with a volatile drug at room temperature. Background technique [0002] At present, as insect repellents for clothing, sublimable insect repellents such as solid p-dichlorobenzene, naphthalene, camphor, etc., and liquid room temperature volatile agents such as empenthrin (empenthrin) are known to be impregnated into paper, plastics, etc. An insect repellent formed after being placed in a carrier such as a container, and then loaded into a container. [0003] The former sublimation insect repellant is weak against clothing pests such as clothes moth and black fur beetle, and has problems in terms of harmfulness and environmental pollution. On the other hand, room-temperature volatile pyrethroid agents such as ethynthrin, etc., have higher inse...

AI Technical Summary

Problems solved by technology

In this insect repellant, the end point of volatilization of the volatile agent at room temperature and the end point of sublimation of the sublimation substance are basically at the same time, but, as shown in the examples, ethynthrin is compared to the sublimation substance Sunsapry (2, 4,6-triisopropyl-1,3,5-trioxane) content is high, even if a non-woven fabric with a large mesh weight (weight per unit area of ​​Japanese textile fabrics) is used, the danger of chemical leakage cannot be avoided. It is also difficult to adjust the speed of volatilization and sublimation with large non-woven fabrics

Furthermore, since it is necessary to form a gas permeation suppressing layer on a part of the inner surface of the air-permeable material, the structure is complicated, and there are also problems in manufacturability, and it cannot be said that it can certainly meet the practical requirements.

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