JPH11279002A - Mite treating agent for automobile, and treatment of mite using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a mite treating agent for automobiles, stably spread over an interior (in particular, floor mat or the like) of a finished car without heating it, to easily prevent the evolution or growth of mites, and to provide a method for treating mites using the same agent. SOLUTION: This mite treating agent is composed of 100 pts.wt. of an acaricide and 5 to 100 pts.wt. of a binder resin (as solid) having a reactive hydroxyl group, diluted with 200 to 2000 pts.wt. of a solvent to form the major ingredient, wherein 5 to 30 pts.wt. of a polyisocyanate resin is incorporated in 100 pts.wt. of the solid portion of the binder resin included in the major ingredient.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an agent for treating mites and a method for treating mites which improve comfort in the interior of an automobile, and more particularly to the occurrence and reproduction of mites which cause allergic diseases. The present invention relates to an agent for treating mites, and a method for treating mites using the same.

[0002]

2. Description of the Related Art Carcasses and feces of mites can be an antigen (allergen) that causes an allergic reaction. Therefore, it is generally required to prevent the generation and reproduction of mites not only at home but also in a car. Is done.

Conventionally, as a technique for preventing the occurrence and reproduction of mites in the home, there is a method of killing mites by spraying a so-called insecticide such as a pyrethroid-based drug. For applications that last long-term effects, such as
The use of drugs having a high insecticidal effect, which may affect the human body, has been refrained, and the use of so-called repellents, which are less harmful, has become mainstream. In addition, by suppressing the insecticidal effect to a very low level and suppressing the reproductive activity to a low level, a growth inhibitor having improved safety has been used.

When the above-mentioned so-called mite-proofing agent is applied to brushed fabrics (hereinafter referred to as "floor mats") such as floor mats, carpets and sheet cloths, etc. Considering durability and durability against washing, etc., a method of using fibers in which a drug is kneaded into a raised portion or a base cloth of a floor mat, or a dip coating or spraying of a liquid agent in which a drug and a binder are dispersed is applied to a floor mat or the like. After the application, a method of heat treatment at about 120 to 180 ° C. to fix the medicine on the surface of fibers such as floor mats has been adopted.

[0005]

However, among the conventional mite-proofing processes, the method of kneading the drug into the raised portion or the base cloth is based on the premise that the raw material is applied, and the fiber into which the drug is kneaded is used. Is woven into floor mats, etc. at the production stage, but after cutting or sewing, and then weaving chemical-processed fibers into the interior materials of finished vehicles, etc. Had a problem that it could not be performed. In addition, car tick prevention measures are desired not only by allergic persons but also by users who use cars. However, as described above, this tick prevention processing cannot be performed post-processing, so that There is a problem that if a vehicle with a countermeasure is desired, a specific grade of a certain type of mite control must be selected. On the other hand, in the tick-proof treatment for heat-fixing the drug, 120
A heat treatment step of about 180 ° C. is required, but since the temperature applied to the completed vehicle is limited to about 80 ° C., a chemical or the like is applied to the fiber interior surface of the completed vehicle, and an anti-mite agent is applied to these surfaces. There has been a problem that it is technically very difficult to stably adhere to the surface.

[0006] The present invention has been made in view of the problems of such technology, and has as its object the following.
Tick-prevention treatment for automobiles that stably attaches a tick-proofing agent to the surface of finished car interior materials, especially floor mats, etc., without heat treatment, to prevent the occurrence and propagation of mites An object of the present invention is to provide an agent and a method for treating mites using the same.

[0007]

Means for Solving the Problems The inventors of the present invention have made intensive studies to solve the above-mentioned problems, and as a result, dispersed a fine powder of an anti-mite agent with a binder resin having a reactive hydroxyl group, and disperse the fine powder with a solvent as appropriate. The present inventors have found that it is possible to prevent the occurrence and propagation of mites by, for example, applying a treatment agent obtained by mixing a diluted product with a main agent and mixing a polyisocyanate as a cross-linking agent with the main agent on a work cloth, and thus completing the present invention. .

That is, the mite-proofing agent of the present invention is prepared by mixing 5 to 100 parts by weight of a binder resin having a reactive hydroxyl group with respect to 100 parts by weight of a mite-proofing agent,
It is characterized in that it is diluted with 部 2000 parts by weight to form a main ingredient, and the polyisocyanate resin is mixed with 5-30 parts by weight based on 100 parts by weight of the solid content of the binder resin contained in the main ingredient.

In a preferred embodiment of the agent for treating mites of the present invention, the binder resin has a glass transition temperature of -20 to 20.
It is characterized by a temperature of 50 ° C.

Further, the method for treating mites according to the present invention comprises applying the above-described agent for treating mites to a fiber interior surface of a finished vehicle by applying 15 to 500 g per m ^{2 of the} interior surface to perform the mite prevention treatment. Features.

[0011]

In the mite-control agent of the present invention, the binder resin having a reactive hydroxyl group has a role of dispersing the tick-control agent. When the amount is 5 to 100 parts by weight, the coating of the tick-proofing agent fixed on the surface of the cloth to be treated such as a floor mat does not become excessively thick, so that the effect of the tick-proofing agent is sufficiently exhibited. Here, the glass transition temperature of the binder resin is preferably −20 to 50 ° C., whereby it is possible to prevent the cloth to be treated from impairing the texture required for the interior of an automobile.

The solvent is added to reduce the viscosity of the treating agent to enable spray coating. In the present invention, the amount of the solvent is based on 100 parts by weight of the mitic agent. By setting the amount to 100 to 2,000 parts by weight, the mite-proofing agent penetrates deep into the raised cloth to be treated, so that the reduction in abrasion durability and washing durability is suppressed.

The polyisocyanate resin has a role of crosslinking and curing the binder resin at room temperature. In the mite-proofing agent of the present invention, the amount of the polyisocyanate resin is adjusted to 100 parts by weight of the solid content of the binder resin contained in the main component. When the amount is 5 to 30 parts by weight, the anti-mite agent can be stably adhered to the surface of the cloth to be treated by the thin film of the binder formed by crosslinking and curing at room temperature.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the agent for treating mites and the method for treating mites of the present invention will be described in detail.

The mite-control agent of the present invention comprises a mite-control agent 100
The binder resin having a reactive hydroxyl group is mixed in an amount of 5 to 100 parts by weight in solid content with respect to parts by weight,
The base resin is diluted with 00 parts by weight, and a crosslinking hardener is mixed with 5 to 30 parts by weight based on 100 parts by weight of the solid content of the binder resin contained in the base agent.

The tick-control agent contained in the tick-control agent of the present invention can be used if it is commercially available.
For example, a tick-proofing agent manufactured by Ishizuka Glass Co., Ltd., trade name Segocera, a tick-proofing agent manufactured by Daiwa Chemical Engineering Co., Ltd., trade name Aninsen S
GS-500 and the like.

The binder resin contained in the anti-mite treatment agent of the present invention is a resin having a reactive hydroxyl group, and it is possible to use a polyurethane resin, a polyester resin, an acrylic resin, or a modified resin thereof as appropriate alone or in combination. it can. The characteristics required for the binder resin are both a mite-proofing effect and a flexibility that does not harden the texture of the cloth to be treated. The amount of the binder resin with respect to the mite-controlling agent powder is as follows.
The solid content is preferably 5 to 100 parts by weight based on 00 parts by weight. If the amount of the binder resin is less than 5 parts by weight on a solid basis, the fixation of the medicine is insufficient, and the wear resistance and washing durability are insufficient. On the other hand, if it exceeds 100 parts by weight, the anti-mite performance is insufficient. Because you do. The glass transition temperature of the binder resin contained in the anti-mite treatment agent of the present invention is from -20 ° C to 50 ° C.
C. is preferred. If the glass transition temperature is higher than 50 ° C., the texture is hardened, and the touch may be deteriorated. If the glass transition temperature is lower than −20 ° C., the effect is insufficient, tacking occurs, and it may cause dirt. Not preferred.

As the solvent contained in the anti-mite treatment agent of the present invention, general-purpose solvents which are usually used for lacquers and cold-drying adhesives are used, and aromatic solvents such as toluene and xylene and ethyl acetate such as ethyl acetate are used. A suitable ester or alcohol or ketone solvent can be appropriately selected and used. The amount of the solvent with respect to the acaricide is larger than the required amount of the solvent for the usual sprayable liquid, and is 1 to 100 parts by weight of the acaricide.
The content is preferably from 2000 to 2000 parts by weight. The amount of solvent is 10
If the amount is less than 0 parts by weight, even though spraying can be performed, the permeability of the drug is insufficient, so that the wear durability and the washing durability are insufficient. Is impaired, and the drug powder separates and precipitates from the binder.

The crosslinking hardener contained in the agent for treating mites of the present invention is preferably a highly reactive polyisocyanate resin, and can be appropriately selected from those usually used as hardeners for two-pack polyurethane paints. In the prior art, since a heat treatment at 120 to 180 ° C. is required as described above, a self-crosslinkable polyurethane resin, a blocked isocyanate, or a melamine resin is used as a crosslinking agent or a durability improver. This is because the limit of the heating condition in a car is about 80 ° C., and a material that is dried and cured at room temperature is required. The amount of this crosslinker is
The proportion may be 5 to 30 parts with respect to 100 parts of the solid content of the binder resin contained in the main agent. If the amount of the cross-linking curing agent is less than 5 parts with respect to 100 parts of the solid content of the binder resin, insufficient curing results in tacking,
Conversely, if it is more than 30 parts, the texture becomes hard.
In addition, it is preferable to mix | blend a crosslinking hardening agent immediately before apply | coating to an interior material.

According to the method for treating mites of the present invention, the above-mentioned agent for treating mites is applied to the interior surface made of fibers of a finished vehicle to perform the treatment against mites.

The method for applying the above-mentioned mite-proofing agent to the interior surface made of fibers of the finished car in the method for mite-proofing of the present invention can be carried out by appropriately selecting a hand-type sprayer, a mist sprayer or an air spray. . In mite treatment method of the present invention, the amount of applying the mite treatment agent is in the range of textile interior surface 1 m ² per 10G～500g. When the amount is less than 10 g per 1 m ^{2 of the} interior surface, the effect of the anti-mite agent may be insufficient. On the other hand, when the amount is more than 500 g, the binder amount becomes excessive and the texture is hardened, This is because adhesion may occur.

[0022]

EXAMPLES Hereinafter, the present invention will be described in detail with reference to Examples, Comparative Examples, and Test Examples, but the present invention is not limited to these Examples.

(Example 1) 300 g of segrocera (fine powder) manufactured by Ishizuka Glass Co., Ltd.
180 g of an aromatic polyurethane resin manufactured by Nichika Chemical Co., Ltd. under the trade name Neocello NPS (glass transition temperature 10 ° C., solid content concentration 50%) was further added thereto, and a 1: 1 mixed solvent of toluene and ethyl acetate was further added. 150 g was added, and this was charged into a ceramic bot together with a ceramic ball, and dispersed and mixed in a ball mill for 24 hours. The dispersion thus obtained was separated from a 50 g ceramic ball, and 150 g of a mixed solvent equivalent to the above was added to prepare a main ingredient.

As a cross-linking curing agent for this base material, a polyisocyanate resin (trade name: Coronate H, manufactured by Nippon Polyurethane Co.)
L (solid content: 60%) was added, and the mixture was stirred and mixed quickly to obtain a treating agent.

100 g of the treating agent thus obtained was taken, and the atomizing pressure was 1.2 kgf / c using an air spray gun.
Close the atomization pattern as much as possible mist m ² is not scattered, nylon fibers normally used in the floor mat for motor vehicles 800 g / m ² weight per unit area of the raised carpet epidermis 1m
X 1 m was sprayed. The carpet skin coated with the treating agent was uniformly blown with hot air for 2 minutes with a hand dryer and temporarily dried, and then left at room temperature for 48 hours to obtain a brushed carpet skin of Example 1.

Example 2 The same operation as in Example 1 was repeated, except that 60 g of Neocello NPS was added instead of adding 180 g, and 0.8 g of Coronate HL was added instead of adding 2 g of Coronate HL. Obtained.

Example 3 The same operation as in Example 1 was repeated except that 480 g of Neocello NPS was added instead of 180 g, and 3 g of Coronate HL was added instead of 2 g, to obtain a brushed carpet skin of this example. .

Example 4 Instead of adding 180 g of Neocello NPS, a polyester resin manufactured by Toyobo Co., Ltd., trade name Viron 200 (glass transition temperature: 60 ° C., solid content: 3)
0%) was added, and toluene and ethyl acetate were mixed in a 1: 1 ratio.
The same operation as in Example 1 was repeated, except that 30 g was added instead of adding 150 g of the mixed solvent, to obtain a raised carpet skin of this example.

(Example 5) Instead of adding 180 g of Neocello NPS, 300 g of a polyester resin manufactured by Toyobo Co., Ltd., trade name Viron 500 (glass transition temperature -30 ° C, solid content concentration 30%) was added, and toluene and ethyl acetate were added. 1:
1 The same operation as in Example 1 was repeated, except that 30 g was added instead of 150 g of the mixed solvent, to obtain a raised carpet skin of this example.

Comparative Example 1 The same operation as in Example 1 was repeated except that 20 g of Neocello NPS was added instead of adding 180 g, and 0.3 g of Coronate HL was added instead of adding 2 g of Coronate HL. Obtained.

(Comparative Example 2) SEGLOCERA (fine powder) 300
g of Neocello NPS to 150 g of Segocera (fine powder) instead of 180 g of Neocello NPS
The same operation as in Example 1 was repeated except that 0 g was added, 80 g was added instead of 150 g of the mixed solvent, and 3 g was added instead of 2 g of coronate HL, to obtain a raised carpet skin of this example.

Comparative Example 3 The same operation as in Example 1 was repeated, except that 25 g was added instead of 150 g of the mixed solvent, to obtain a raised carpet skin of this example.

Comparative Example 4 The same operation as in Example 1 was repeated, except that 600 g was added instead of 150 g of the mixed solvent, to obtain a raised carpet skin of this example.

Comparative Example 5 The same operation as in Example 1 was repeated except that 0.5 g of coronate HL was added instead of 2 g of coronate HL to obtain a brushed carpet skin of this example.

(Comparative Example 6) The same operation as in Example 1 was repeated, except that 5 g was added instead of 2 g of coronate HL, to obtain a raised carpet skin of this example.

(Comparative Example 7) Instead of taking 100 g of the treating agent, 10 g was taken, and 0.1 g of each was dropped with a syringe for injection at intervals of 10 cm to 1 m × 1 m of the cloth to be tested.
The same operation as in Example 1 was repeated to obtain a raised carpet skin of this example.

Comparative Example 8 The same operation as in Example 1 was repeated, except that 600 g of the treating agent was used instead of 100 g of the treating agent, to obtain a raised carpet skin of this example.

Tables 1 and 2 show Examples 1 to 3 and Comparative Example 1.
10 to 10 show the composition and amount of the treatment agent applied.

[0039]

[Table 1]

[0040]

[Table 2]

(Evaluation Test) (1) Mite Proliferation Test Carpet epidermis of Examples 1 to 3 and Comparative Examples 1 to 10
Cut out into a square of 0 cm and placed in a glass petri dish, and 0.5 g of a mixture of Dermatophagoides farinae and mite feed (Ebios, a dry yeast powder manufactured by Asahi Breweries) on the epidermis
(Includes about 500 mites.) Spray evenly, 25
The animals were bred for 6 weeks at 80 ° C. and 80% RH. (2) Method for measuring the number of mites solids After the mixture of mites and feed was removed from the epidermis subjected to the test into a beaker, the epidermis was carefully shaken in a solution containing a small amount of a neutral detergent added to a saturated saline solution. Washing was performed, and the suspended matter was separated by suction filtration using a filter paper stained with methylene blue blue. The separated product on the filter paper was observed under magnification with a microscope, and the number of mites was counted. (3) Calculation of growth inhibition rate The test was performed with 3 repetitions, and blank (untreated epidermis)
From the number of mites, the amplification inhibition rate was determined by the following equation. Growth inhibition rate (%) = ((N ₀ −N) / N ₀ ) × 100 N ₀ : Number of mite in blank, N: Number of mite in treated epidermis When it was 70% or more, it was judged that there was an effect.

(4) Durability test for cleaning abrasion Assuming that the floor mat is regularly cleaned, the treated skin 1
A rectangular strip of 0 cm × 50 cm was cut out, rubbed ten times with a car wash brush with a neutral detergent and water, and rinsed 5 times in warm water at 60 ° C. for 5 times. afterwards,
The same operations as (1) to (3) were repeated to determine the growth inhibition rate after washing and wear durability.

(5) Feeling Evaluation Test The treated skin and the untreated skin were compared by finger touch, and those having a clear difference in tactile sensation were evaluated in terms of "hard" or "sticky".

Table 3 shows the results of the above evaluation tests.

[0045]

[Table 3]

From Table 3, in Examples 1 to 3, the mite growth inhibitory effect was confirmed not only at the initial stage but also after the endurance of washing and abrasion, and the texture was good. Also in Examples 4 and 5, the effect of suppressing the growth of mites is maintained even after washing and wear durability. However, it was also clarified that if the glass transition temperature of the binder used was high, the texture became hard, and if the glass transition temperature was low, the texture became sticky.

On the other hand, in Comparative Example 1, the effect after durability against washing and abrasion was not obtained because the amount of the binder was small. In Comparative Example 2, on the contrary, the texture became hard because the amount of the binder was too large. In Comparative Example 3, since the amount of the solvent was insufficient, the permeability of the drug was inferior, and the effect after washing durability was not obtained. In Comparative Example 4, since the amount of the solvent was too large, the once-dispersed treating agent was separated from the binder, sufficient stability was not obtained, and no effect after washing durability was obtained. Comparative Example 5
Has a small amount of curing agent, so that sufficient crosslinking cannot be obtained,
Poor durability. In Comparative Example 6, the texture was cured because the amount of the curing agent was large. In Comparative Example 7, since the amount of application was small, a sufficient effect was not obtained even in the initial state. In Comparative Example 8, the brushing was hardened because the coating amount was too large,
The texture has deteriorated.

[0048]

As described above, according to the present invention, a specific anti-mite agent and a binder resin are mixed with a polyisocyanate resin at a predetermined ratio.
Prevents the generation and reproduction of allergic mites, which are said to be allergic substances, by stably adhering tick-proofing agents to the interior materials of completed vehicles, especially floor mats, etc., without impairing the original texture of the interior materials of completed vehicles. The present invention can provide an anti-mite treatment agent for automobiles.

Further, according to the present invention, 120-180 ° C.
Since a degree of heat treatment is unnecessary, it is possible to provide a tick-proofing method in which a chemical or the like is easily applied to a fiber interior surface of a completed car to perform a tick-proofing treatment at a work place such as a car dealer.

Claims (3)

[Claims] 1. A binder resin having a reactive hydroxyl group is mixed in an amount of 5 to 100 parts by weight in solids with respect to 100 parts by weight of an acaricide, and diluted with 200 to 2,000 parts by weight of a solvent to obtain a main agent. Solid content of binder resin contained 1
5 to 30 parts by weight of the polyisocyanate resin per 100 parts by weight.
An anti-mite treatment agent for automobiles, which is obtained by mixing parts by weight. 2. The mite-proofing agent according to claim 1, wherein the binder resin has a glass transition temperature of −20 to 50 ° C. 3. The textile interior surface of a completed vehicle is provided on the interior surface of the fiber.
Or 2 mite treatment agent according to, mite processing method and performing anti-mite treatment by coating 15~500g per the interior surface 1 m ^2.