JPS5852201A - Mat for electric mosquito destroyer - Google Patents

Abstract

PURPOSE:To A mat for an electric mosquito destroyer, containing a pyrethroid insecticide as an active constituent and an aminoanthraquinone dyestuff, and capable of inhibiting the transfer of the dyestuff during the heating of the mat and indicating the amount of the remaining active constituent accurately by the transfer of a color by using a paper sizing agent together. CONSTITUTION:A mat for electric mosquito destroyers containing a pyrethroid insecticide as an active constituent and an aminoanthraquinone dyestuff, e.g. 1,4-dipropylaminoanthraquinone, and further a paper sizing agent. One or two or more selected from the group consisting of alkyl or alkenylketene dimers, preferably compounds of formulaI(R4 and R5 are 8-24C alkyl, etc.), alkyl or alkenylsuccinamides, preferably compounds of formula II (either one of R6 and R7 is 6-30C alkyl, etc.; the other is H; R8 and R9 are H, etc.) and rosins are used as the paper sizing agent.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an electric mosquito dispersal mat, more specifically, by controlling the movement of the efficacy indicator pigment of the electric mosquito repellent mat, the color of the electric mosquito repellent mat can be changed from XB sequential color in 10 to 12 hours. This invention relates to an electric mosquito repellent mat that can change its color to white.

Electric mosquito repellent mats have many advantages such as no stinging and less risk of fire, and have recently become widely used as an alternative to mosquito repellent mats. The electric mosquito repellent mat maintains the IR effect for 10 to 12 hours by heating the active ingredient impregnated in the mat to 140 to 170°C and gradually volatilizing it. However, since the active ingredient that evaporates cannot be seen with the naked eye, aminoa/traquinone pigments such as 1,4-dibutylaminoanthraquinone are added to indicate whether or not the active ingredient remains, that is, its efficacy, and the actual color is colored before use. It is designed so that the top surface becomes almost white after 10 to 12 hours. Previously, it was thought that this fading of the mat was due to the volatilization of the pigment together with the active ingredients, but this time, this fading is due to the pigment moving toward the hot plate, causing the pigment to disappear in the upper layer of the paper and accumulate in the lower layer. It was found that the loss of pigment within the mat was slight. Therefore, in order to suppress the fading of this electric mosquito dispersal mat, it is common practice to use a pigment with higher sublimation properties and dye the upper layer by sublimating the pigment that accumulates in the lower layer when the mat is placed on a hot plate. I think that the.

However, this method has the disadvantage that the amount of dye that sublimes from the mat also increases, contaminating the area around the electric mosquito 1G and the equipment. Furthermore, if a dye with poor sublimability is used, the dye will tend to tuck into the lower layer of the mat, and the color will fade even faster.

As described above, it is currently difficult to make the remaining amount of the active ingredient and the remaining color of the mat surface the same by changing the pigment.

The inventor of the present invention has conducted extensive studies to improve the drawbacks of electric mosquito repellent mats containing aminoanthraquinone dyes as described above, and has found that by using aminoa/traquinone dyes and a paper sizing agent in combination, We discovered that it is possible to suppress the movement of the pigment during heating of the mat, and that it is possible to gradually change the color from actual color to white over a period of 10 to 12 hours, depending on the remaining amount of the insecticidal active ingredient. completed.

That is, the present invention uses a pyrethroid insecticide as an active ingredient,
An object of the present invention is to provide an electric mosquito repellent mat containing an aminor/traquinone pigment, which is characterized by containing a paper sizing agent.

Examples of the paper sizing agent used in the present invention include alkyl or alketerketene dimers, alkyl or alkenylconohexic acid amides, and rosin. Examples of the ketene dimer include compounds represented by formula (II).
, ・In the formula, R, R, and rj each represent a monohydrocarbon group having 8 to 24 carbon atoms. Examples of the aspect ratio hydrogen group include an alkyl group and an alkenyl group. These ketene dimers may be used alone or in combination of two or more.

Further, examples of the alkyl or alkenyl group "Huccinic acid 7mide" used in the present invention include compounds represented by the formula (劃).

(Either one of R6 and R7 is an alkyl or alkenyl group of longitudinal cords a6 to 30, and the other is a hydrogen atom, R
, ', R is a hydrogen atom or an alkyl group or alkenyl group having 3 to 22 carbon atoms, at least one of which has S to 2 carbon atoms.
These alkyl or alkenyl succinic acid amides may be used alone or in combination of two or more.

Examples of the rosin used in the present invention include natural rosins such as gum rosin, wood rosin, and tall oil rosin, hydrogenated rosins, and chemically modified rosins such as maleic acid-added rosins.

These rosins can be used alone or in combination of two or more.

Any of these paper sizing agents may be used in combination, and the amount used is 0.1 to 50"lf per electric mosquito repellent mat,
When internally added during pulp board paper making, 1 to “15” 9
When impregnating m-pulp board with insecticide, III agent, etc., 5 to 201q is preferable.

In addition, as the achinoanthraquinone dye used in the present invention, 1,4-diaminoanthraquinone 7 represented by the formula (I) (R1,R,Fi is an alkyl group or group having 1 to 10 carbon atoms) are preferable, and specific examples include 1.4-dibutylaminoanthraquinone, 1.4-dibutylaminoanthraquinone, 1
, 4-dioctylaminoanthraquinone, 1-methylamino-4-methatolylaminoanthraquinone, and the like.

There may be a halogen or hydroxyl substituent on the anthraquinone skeleton. Further, it is not limited to 1,4-diaminoanthraquinones, and 1,6-diaminoanthraquinone and the like may be used without any problem. These aminoanthraquinone dyes may be used alone or in combination of two or more. The amount of aminoanthraquinone dye used per mat is preferably <tio, s to s, oq, more preferably 0.5 to 15' IP.

Other ingredients included in the mat include pyrethroid insecticides such as allethrin, flamethrin, and phenothrin, and biperonyl ptoxide.

Synergists such as N-(2-ethylhexyl)bicyclo[2,2,1]hebut-5-ene-2,3-dicarbodiimide, high concentrations such as n-butyl stearate, isopropyl myristate, liquid paraffin, etc. Boiling point organic substance, 3,5-di-tert-butyl-4-hydroxytoluene (BHT), 2-
Contains stabilizers such as tert-butyl-4-hydroxyanineol (BHM) and 8% fragrance.

The electric mosquito repellent mat of the present invention was made as a trial mat, and experimental examples and examples will be described in detail #1 regarding the suppression of the movement of the aminoanthraquinone pigment in the thermal direction and the suppression of fading on the surface of the mat. Explain.

Experimental Example 1: Suppression of movement of 0 pigment within the mat and suppression of discoloration of the upper surface of the mat An electric mosquito repellent mat impregnated with a pulp board measuring 122 x 55 x 2.7 m [prepared and heated at approximately 150°C] with the formulation shown in Table 1.
Place the mat on a hot plate and observe the color of the upper surface of the mat after 9 hours.

Divide into two lower layers, extract the dye from each using a Soxhlet using n-hexane as an extraction solvent, quantify the amount from absorbance, and calculate the amount of dye in the upper and lower layers at 0 hours, 1i-1.
Close 00 to see its behavior. The results are shown in Table 2.

From this result, it is thought that the color change is not due to a decrease due to volatilization or decomposition of the pigment, but is caused by migration from the upper layer to the lower layer, and the alkyl ketene dimer suppresses this migration, and the color changes on the mat. It can be seen that fading of the surface is also suppressed.

Table 2 $2 The criteria for determining the color of the upper surface are as follows.

+: Actual color is vivid++ +2 Slightly faded +: Faded but can be clearly identified as the back ± Looking at the knee, it looks whitish, but a slight blue tinge remains - 2 Experimental example 2 where no blue tinge is felt Inhibition of movement of 0 dye within the unit The combination of the aminoanthraquinone color chart and sizing agent shown in Table 5 is combined with the blended composition shown in Table 4, and it is mixed with 22) 15 An electric mosquito repellent mat is made by impregnating a pulp board, and CT* is placed on a hot plate at approximately 150°C.
Heated for 6 hours. Thereafter, the mat was divided into two layers in the thickness direction, an upper layer and a lower layer, and the pigment was quantified in the same manner as in Experimental Example 1, and expressed as a percentage of the amount of pigment in the mat without a sizing agent.

The results show that the amount of the various aminoanthraquinone pigments remaining in the upper layer was greater than that of the control due to the various sizing agents, and the migration of the pigments was suppressed.

Regarding gum rosin and maleic acid added rosin,
It was added at the papermaking stage.

#I5 Rattan 4 Table 1 #1 5 Table ■ Experimental Example 3 0 Fading test on the top surface of the mat - I Electric mosquito repellent mat (22
35 x 2.7 m) was placed on a hot plate at about 150°C, and the color of the surface was observed after 2, 5, 5, 8, and 12 hours. Separately, after 2.5° 5.8.12 hours, residual allethrin was extracted from the mat placed on a hot plate using petroleum ether and quantified by gas chromatography. The results are shown in Table 7 for pipe line 7.

From these results, it can be seen that the color of the matte upper surface of Composition H of the present invention containing alkenyl succinamide is more fading in proportion to the remaining amount of the active ingredient allethrin compared to Control (2).

No. 6 Humiliation In formula (2) Rh-012H2J+ %H
27 (2 full 'l ``''') +R7, horse = H, R, =
See Table 7 for C, H7 z Same as Table 2 Next, examples of the present invention will be shown, but the present invention is not limited to these examples.

Example 1 Allethrin 8f, biveronyl butoxide 4f, B
l (72F, liquid paraffin 5F, fragrance 0.5F, 1
．． 4-dipropylaminoanthraquinone o, oat and 1 ton of hexadecyl/octadecylketene dimer were heated and mixed, and a 22×35×3M pulp board was impregnated with 205.8 N to obtain an electric mosquito repellent mat.

Implementation 4s2 d-allethrin (allethrone Od-chrysanthemum acid ester) 4F, n-butylstearin st, isopropyl myristate S f , BHT2F, fragrance 0.5
? , 1.4-dibutylaminoanthraquinone 0.0
7 F and ophtadecilten dimer 1.5 f t
- 138.7- of the heated and mixed solution is 22X35X3
An electric mosquito repellent mat was obtained by impregnating a pulp board of No.

Example 5 d-Framethrin (5-propargyl-2-furylmethyl-d-cyV-trans-chrysanthemate) 5f, biveronyl butoxide SF.

BHM2f, N-(2-ethylhexyl)-bicyclo[
:2,2.1]-hebut-5-ene-2,5-dicarboximide 1st, fragrance 0.5 f, 1-methy-
A pulp board measuring 22 x 35 x 5 m was impregnated with 246111I, a liquid obtained by heating and mixing 0.1 t of 4-fi-tolylaminoanthraquinone and 1.2 t of eicosylsuccinic acid amide, to obtain an electric mosquito repellent mat.

Example 4 d-allethrin 4F, biperonyl ptoxide sr, deodorized kerosene 5f, BIT 2f, fragrance 0. St.

145.7"f of the above chemical solution was heated and mixed with 1.4-dipentylaquinoneanthraquinone 007f, and 145.7"f of the above chemical solution was added to a 22 x 55 x 311 II pulp board made by adding 1% maleic acid-added rosin to the paper pulp. to obtain an electric mosquito repellent mat.

Applicant's agent: Furutani i

Claims (1)

[Scope of Claims] 1. An electric mosquito repellent mat containing a fillet tetraid-based hazy shavings as an active ingredient and an annoanthraquinone-based pigment, which is characterized in that it contains a paper sizing agent. . The electric mosquito repellent according to claim 1, wherein the paper sizing agent is one or more selected from the group consisting of an alkyl or alkenyl ketene dimer, an alkyl or alkenyl succinate, and p-zine. mat. 3. The adenoanthraquinone dye has the formula (!) (R1
The electric mosquito repellent IT according to claim 1, which is a cyanoanthraquinone pigment represented by the following formula: # is an alkyl group having 1 to 10 carbon atoms or a p group. 4. The alkyl or pulkenylketene dimer has the formula 1m
1 (R4, R, Fi is an alkyl group or alkenyl group having a prime number of 8N24) or a mixture of two or more compounds represented by the formula (I
ll (One of R,, R, is an alkyl or alkenyl group having 6 to 50 carbon atoms, and the other is a hydrogen atom, R
,,R, is a hydrogen atom or an alkyl group or alkenyl group having 3 to 22 carbon atoms, and at least one of them has a carbon number of S to 22V.
Rosin, natural rosin such as tall oil rosin, water, electric mosquito repellent mat according to claim 2.