JPH0570601B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention provides an insect repellent mat containing 4-methyl-4-hepten-1-yn-3-yl d-cis, trans-chrysanthemate (hereinafter referred to as vaporthrin) in a plastic case or a laminated paper or In addition to being encapsulated in a non-woven interior paper, a composition in which a plasticizer or a vapor rinse is added thereto is separately provided from the insect repellent mat and is separated from the pulp or linter base paper layer, the colored layer and the oil-permeable ground color layer. After impregnating the colored paper with the coloring layer and developing the hue of the colored layer by changing the folding rate,
The present invention relates to an insect repellent for clothing, in which the plastic case or interior paper is provided with an indicator that allows the end point of use to be easily confirmed by the disappearance of color. In the past, valadiclorbenzene, naphthalene, and albacore have generally been used in solid form as insect repellents for clothing. These three types of insect repellents for clothing are not completely satisfactory, such as problems with odor, large amounts of use,
It had various drawbacks, such as having to replace it with a new one every four months, and having no insecticidal effect and weak insect repellent effect. The present inventors investigated the drawbacks of the above-mentioned clothing insect repellents, and also researched agents that can be used to control pests such as fleas, lice, ticks, grasshoppers, wasps, flies, mosquitoes, and cockroaches, which have been increasingly occurring in recent years. As a result of these efforts, an insect repellent for clothing that uses vapor rind as a volatile agent has been developed.
Unlike commercially available paradichlorbenzene, naphthalene, and other preparations, it not only has an insect repellent effect on clothing pests, but also has insecticidal power.
In addition, it has been found that it is suitable for the purpose because it does not have the strong odor or irritation characteristic of insect repellents such as paradichlorobenzene, naphthalene and camphor preparations. In addition, in order to control the amount of volatilization of vapor thin and to maintain its insect repellent effect for a long period of time, and to prevent chemical components from seeping into clothing, insect repellent mats containing vapor thin are placed in plastic cases or laminated paper or non-woven fabric interiors. He discovered that the method of packaging in paper was extremely effective and applied for a patent in the Showa era.
Filed as No. 15940 in 1959. However, vapor rind is a liquid, and insect repellent mats impregnated with it have the disadvantage that it is difficult to determine the end point of use, such as when crystals of paradichlorobenzene or naphthalene disappear. Therefore, the present inventors applied the principle of water brush paper and continued intensive research, and as a result, we found that various plasticizers or compositions with vapor rins added to them were similar to colored paper suitable for vapor rinsing. The present invention was completed based on the discovery that the end point of use can be easily confirmed by impregnating color-forming paper with a drug to develop color, and then observing the disappearance of color after a certain period of time. The colored paper used in the present invention includes a base paper layer made of pulp or linter, a colored layer of any hue provided on the base paper layer and the surface, and a low refractive index pigment provided on the colored layer. It consists of a ground color layer that has appropriate oil resistance and oil permeability and has a different hue from the colored layer, and when a composition containing various plasticizers or vapor rind is applied, the refractive index changes. As a result, the hue of the colored layer develops. As the density of the colored paper, especially the ground color layer, decreases due to volatilization of the chemicals, the color gradually fades and eventually returns to the hue of the ground color layer. As the plasticizer used in the present invention, commonly used ester plasticizers can be used, such as fatty acid ester, phthalate ester, adipate ester, azelaic acid ester, sebacic acid ester, citric acid ester, trimellitic acid ester, There are glycolic acid esters, phosphoric acid esters, polyhydric alcohol esters, etc., but they have 14 to 24 carbon atoms.
saturated or unsaturated fatty acid esters are preferred. Representative examples of the above plasticizers are listed below, but it goes without saying that the plasticizers are not limited to these. (1) n-butyl stearate (2) isopropyl myristate (3) methyl oleate (4) n-butyl oleate (5) n-butyl laurate (6) methyl palmitate (7) di-n-maleate Butyl (8) Di-n-butyl adipate (9) Ditridecyl phthalate (10) n-Butylbenzyl phthalate (11) Di-2-ethylhexyl phthalate (12) Di-2-ethylhexyl azelate (13) Dibenzyl sebacate ( 14) Acetyl tributyl citrate (15) Trioctyl trimellistate (16) 2-ethylhexyl p-hydroxybenzoate (17) Butylphthalyl butyl glycolate (18) Diethylene glycol distearate (19) Methyl acetyl ricinoleate (20) Monoolein Glyceryl acid (21) Tri-2-ethylhexyl phosphate (22) Dioctyl fumarate (23) Dibutyl fumarate (24) Di-2-ethylhexyl maleate In carrying out the present invention, use of insect repellent pine containing vapor phosphorus It is preferable to appropriately determine the type of plasticizer to be used, the amount of application, and, if necessary, the blending ratio with vapor rinse, depending on the conditions and efficacy duration conditions. In this case, the degree of color development and volatility due to the refractive index of the plasticizer are taken into consideration. For example, it is possible to apply a minimum amount of a plasticizer with low volatility required for color development, and then turn on vapor rinsing thereon. Therefore, the present invention is an extremely useful and practical invention in that it uses a plasticizer that is much cheaper than vapor rinse and provides a method for more reliably indicating the end point of insect repellent use. This cannot be dismissed from the idea of applying only to colored paper. The vapor rin impregnated into the insect repellent pine of the present invention is a pyrethroid compound with a high vapor pressure and has extremely low toxicity to humans and livestock, and it can be safely used at home as it does not have the odor or irritation of paradichlorobenzene, naphthalene or other chemicals. can do. In order to stabilize the drugs, it is also useful to add antioxidants such as BHT, DBH, BHA, etc. to them, and to add fragrances to add aromatic properties. In addition, the lamination process applied to the plastic case containing the insect repellent pine and the interior paper, or the printing and application method of a composition containing a plasticizer or a vapor rinse added to colored paper, are conventionally known resin processing, It is based on lamination processing and chemical processing methods, and is advantageous in that it does not require any new equipment and can use conventional equipment for multiple purposes. Next, the present invention will be explained in detail with reference to Examples. Example 1 A pulp pine with an area of 48 cm ² (6 x 8 cm) was impregnated with 500 mg of vapor rind and 20 mg of BHT to obtain an insect repellent pine, which was then packaged in a plastic case. Separately, indicators were prepared by impregnating colored paper with an area of 3 cm ² (1 x 3 cm) with various chemicals, and the indicators were always stored in a plastic case and hung in a dresser. After 8 months, the remaining amount of the insect repellent pine and the degree of color development of the indicator were examined and the results were as follows.

[Table] In this test, the low required amount of indicator coloring was about 5 mg/cm ² of the drug, and from Test 5, the vapor rins on the colored paper volatilized much more easily than on the insect repellent pine. In the indicator using vapor rin alone (Test 5), the color had already faded after 8 months, and it was thought that a higher concentration of vapor rin was required. Not necessarily desirable. On the other hand, the insect repellent for clothing of the present invention (Tests 1 to 4) uses a plasticizer with lower volatility than vapor rin as an indicator, so the total amount of volatilization is suppressed and the coloring disappears after 8 months. controlled to some extent. Combined with the fact that the plasticizer used in the present invention is extremely inexpensive compared to vapor rinse, the usefulness of the insect repellent for clothing of the present invention has become clear. Example 2 Pulp with an area of 11 cm ² (2.2 x 5.0 cm) and a thickness of 2.5 mm.
Vapor rind 100mg in linter mat, DBH3
Insect-proof mats were obtained by impregnating them with 1 mg of perfume and 1 mg of fragrance, which was then packaged in inner paper laminated with 20μ polyethylene. Separate area 2cm ² (1 x 2cm)
Indicators were prepared by impregnating color-forming paper with various chemicals and then storing them in inner paper.
Approximately 50 drawers were filled with five sheets of muslin cloth, and five pieces of the insect repellent for clothing of the present invention were placed between each layer. Immediately after the start of the test and after 8 months, the degree of color development of the indicator was examined, and 60 burr larvae were released onto the third and fifth muslin cloths from the bottom, and the number of deaths was observed over time. . The mortality rate is shown as the average of the 3rd and 5th images.

[Table] As a result of the test, the insect repellent for clothing of the present invention (Test 1 to
4) is still effective even after 8 months,
The color development of the indicator was controlled. On the other hand, in the case of the indicator using vapor rin alone, as in Example 1, the color had already faded before 8 months had elapsed. It should be noted that similar results were obtained regardless of the material of the laminated film, for example, when polyethylene or polypropylene of 15 to 60 μm was processed on one side or both sides. In addition, it was effective in controlling clothing pests such as burrs, carp moths, and cutworms, as well as sanitary pests such as fleas, lice, and mites in chests of drawers, wardrobe boxes, and even storage of seasonings in the kitchen.

Claims (1)

[Claims] 1 4-Methyl-4-hepten-1-yn-3-
An insect repellent mat containing il d-cis, trans-chrysanthemate is enclosed in a plastic case or a laminated paper or non-woven inner paper, and a plasticizer or 4-methyl-4-heptene-1- in-3-yl d-
The composition containing cis, trans-chrysanthemate is impregnated into colored paper which is separate from the insect repellent pine and which consists of a pulp or linter base paper layer, a colored layer and an oil-permeable ground color layer, and For clothing, characterized in that the plastic case or inner paper is provided with an indicator that allows the end point of use to be easily confirmed by the disappearance of the color after the hue of the colored layer is developed by changing the ratio. Insect repellent. 2. The insect repellent for clothing according to claim 1, wherein the plasticizer is a saturated or unsaturated fatty acid ester having 14 to 24 carbon atoms. 3. The insect repellent for clothing according to claim 1 or 2, wherein the plasticizer is butyl stearate or isopropyl myristate.