JPS5942302A - Repellent against fiber noxious insect - Google Patents

Abstract

PURPOSE:The titled inexpensive repellent showing activities such as repelling action, etc. on fiber noxious insects, safe to the human body, comprising an active ingredient obtained by blending camphor with cyclohexanone oxide as a synergist to enhance the insecticidal effect of camphor, etc. and to keep its effect for a long time. CONSTITUTION:An active component is obtained by blending camphor or naphthalene having insecticidal power and low toxicity to mammals with a synergist of cyclohexanone oxime, a raw material for 6-nylon, having no insecticidal power, in a weight ratio of (95:5)-(30:70). The same effect can be obtained by adding the synergist to a mixture of camphor and naphthalene, and the blend is used as a repellent of three components compounded. The repellent has eating inhibitory action and insecticidal action on fiber noxious insects, and especially effective for repelling fiber noxious insects such as Tinea pellionella Linne, Tineola bisselliella Hummel, carpet moth, Attagenus megatoma Fabricus, Anthrenus verbasu Linne, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a repellent against textile insect pests, particularly against burrs,
The present invention relates to a textile insect repellent that is safe for the human body and has antifeeding, repellent, and insecticidal activities against textile insect pests such as carp moth, Japanese carp moth, Japanese carp moth, Japanese carp moth, Japanese carp stinkbug, and white Japanese carp insect.

Conventionally, naphthalene, camphor, paradichlorobenzene, and the like have been used as insect repellents for clothing, and among them, paradichlorobenzene is the most widely used because it has a strong insecticidal effect and is inexpensive.

However, paradichlorobenzene is a type of organic chlorine drug that can accumulate in living organisms and cause harm, and can also combine with the ocular mucosa and cause clouding of the crystalline lens (industrial poisoning). The use of Aldrin, an organochlorine-based agent that is used as an insect repellent by Fiber Power Roe (Handbook), is currently being regulated.
Its use is prohibited.

Therefore, in recent years, many compounds or combinations thereof have been proposed as insect repellents or repellents to replace paradichlorobenzene. For example, insect repellents for wool containing triisopropyl-S-trioxane or tri-tert-butylene-S-trioxane and a combination of naol, anethole, menthol, cinnamaldehyde, thymol, eugenol, or their derivatives as active ingredients ( Japanese Unexamined Patent Application 1972-24
No. 436), an insect repellent containing a cyclic compound having 10 carbon atoms and an ether bond as an active ingredient (Japanese Unexamined Patent Publication No. 52-11)
No. 0823), a sublimable insect repellent containing adamantane, a sublimable hydrocarbon, and a sublimable or volatile polar compound (Japanese Unexamined Patent Publication No. 121936/1982), a combination of naphthalene and thymol An insect repellent containing as an active ingredient (Japanese Patent Application Laid-open No. 109938/1982), an insect repellent for clothing containing a combination of naphthalene and 2-isopropyl-5-methylphenol as an active ingredient (Japanese Patent Application Laid-open No. 3262-1983)
No. 0), an insect repellent for clothing containing acetoxime as the main component (Japanese Unexamined Patent Publication No. 101425/1983), an aromatic compound having a substituent such as a carbon chain having a branch at the α-position as an active ingredient. Containing insect repellent (Japanese Patent Application Laid-Open No. 54-1103
21) and an aromatic insect repellent containing l-carvone as an active ingredient (Japanese Unexamined Patent Application Publication No. 1982-19229).

However, all of these insect repellents have disadvantages, such as being more expensive than paradichlorobenzene, having significantly lower insect repellent effects, being highly volatile and having poor sustainability, and changing significantly over time. ,
This cannot be said to be fully satisfactory in practical terms.

In view of the current situation of insect repellents for clothing, the inventors
In order to develop a practical insect repellent that is extremely safe for the human body, has excellent insect repellent effects, and has excellent long-lasting effects, we will utilize the insecticidal power of camphor and naphthalene, which have extremely low toxicity to mammals. As a result of many experiments and studies on synergists that increase efficacy, it was discovered that cyclohexanone oxime can effectively achieve the purpose, and the present invention was achieved.

That is, the present invention provides a repellent for textile pests, which contains a combination of camphor or naphthalene and cyclohexanone oxime as an active ingredient.

Cyclohexanone oxime, which is used in the repellent of the invention, is a white crystal with a melting point of 89-91"C and a boiling point of 206-210"C, and can be easily synthesized by converting cyclohexanone into an oxime. Cyclohexanone oxime is also a raw material for 6-nylon, and is a compound that can be obtained at an extremely low cost.This cyclohexanone oxime has virtually no insecticidal power, so it can be used in combination with conventionally known insecticidal ingredients. This is a substance that has never been seen before. However, when it is added to camphor or naphthalene, its insecticidal power is significantly enhanced, and it is even more effective against the human body.
-1/l It was a completely surprising discovery that we were able to provide a safe and highly practical insecticide.

In other words, the invention was developed as an extremely effective compound that can significantly enhance the insecticidal efficacy of camphor and naphthalene, which were once used as insecticides for clothing, and maintain their efficacy for a long time. Based on the discovery of a synergist, the ratio of cyclohexanone oxime synergist added to camphor or naphthalene increases the insecticidal efficacy of camphor or naphthalene, and maintains long-term insecticidal and food damage prevention effects. Although there are no restrictions as long as the amount can be obtained, the ratio of camphor or naphthalene to cyclohexanone oxime synergist is usually 95:5 to 30:70 by weight.
A range of is preferred. If it deviates from this range, the insecticidal power will be lowered, and the effect of preventing feeding damage will also be lowered, making the insect repellent effect unsatisfactory in practical terms, which is not preferable.

The effect of adding the cyclohexanone oxime synergist used in the present invention is substantially equivalent to camphor and naphthalene, and therefore, the same effect can be obtained when the synergist is added to a mixture of camphor and naphthalene. is possible,
The present invention includes such a three-component combination repellent.

The repellent of the present invention is a practical fiber insect repellent that is inexpensive, has an excellent insect repellent effect, has a long-lasting effect, and is highly safe. It is effective in exterminating textile pests such as the Japanese cutlet beetle and the white cutlet beetle.

Next, the present invention will be explained in more detail with reference to Examples.

Examples Compositions with various blending ratios of camphor and cyclohexanone oxime and compositions with various blending ratios of naphthalene and cyclohexanone oxime were prepared, and 50 cm of each composition was prepared in a volume of 5007 cm! Place 10 35-day-old burr larvae and wool standard test cloth (2 c.
The basket containing the 40-45 m x 2 cm) was fixed. Next, the bottle was sealed and left in a constant temperature and humidity room at 30° C. and 65° C. for 7 days, after which the wool was removed, the amount of feeding damage was measured, and the number of dead insects was counted. The surviving insects were left in their natural state for another day, and the number of dead insects was counted again to determine the insect kill rate.

Table 1 shows the compositions of each repellent and their respective measurement results.

Note that the values in the table are average values obtained by conducting the test 3 to 6 times.

Further, for comparison, the measurement results of cyclohexanone oxime, camphor, and naphthalene each used alone are also shown in the table.

Table 1 - From the above efficacy test results, it can be seen that the repellent of the present invention containing the cyclohexanone oxime synergist has excellent insecticidal power and ability to prevent feeding damage, and is inexpensive and highly practical.

Patent applicant Makoto Ishizaka, Director of the Agency of Industrial Science and Technology - Kazuo Naito 8-

Claims (1)

[Scope of Claims] 1. A repellent against textile pests, comprising a combination of camphor or naphthalene and cyclohexanone oxime as an active ingredient. A repellent according to claim 1.