JPH08246290A - Moth-proofing synthetic resin cloth and its production - Google Patents

Abstract

PURPOSE: To provide a process for the moth-proofing treatment of a synthetic resin cloth to impart the cloth with a durable moth-proofness in washing, etc. CONSTITUTION: A synthetic resin cloth is imparted with a durable moth-proofing effect by kneading a heat-resistant moth-proofing agent consisting of one or more compounds selected from dialkyl phthalate, dialkyl adipate, dialkyl malate and dialkyl fumarate each having 9-14C alkyl groups into a synthetic resin cloth.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin cloth excellent in durability in which an insect repellent effect against general hygiene pests is maintained for a long time by kneading a synthetic resin with an insect repellent, and a method for producing the same.

[0002]

2. Description of the Related Art As a method for controlling damages caused by indoor dust mites and general hygiene pests, a method of spraying an insect repellent or using an aerosol or a smoke agent is widely used. In addition, as an insecticide used for blood-sucking insect pests such as mites and cockroaches and sanitary insect pests, organophosphorus preparations have been widely used conventionally. However, many organophosphorus preparations have been developed as agricultural insecticides and have excellent efficacy, but since many compounds are harmful to humans and animals, they are mainly composed of synthetic pyrethroid compounds with low toxicity and excellent insecticidal efficacy. Many insect repellents have come to be used.

Since then, as for insecticides used against domestic pests, studies have been conducted on compounds having insecticidal and repellent properties. As a result, research on pest control agents using N, N-diethyl-m-toluamide and terpene compounds and their derivatives, which have excellent properties, has been conducted, and application of insect repellents against mites and other pests has been proposed.
No. 3-104905, and a harmful insect repellent composition comprising a terpenoid compound monomer and its low polymer is disclosed in JP-A-4-187607.

The insect repellents described above have also been studied for their insect repellent effect against sanitary pests other than mites.
For example, we have developed many lower alkyl esters of aliphatic or aromatic carboxylic acids such as paraoxybenzoic acid alkyl ester, succinic acid dialkyl ester, adipic acid dialkyl ester, phthalic acid dialkyl ester, glutaric acid dialkyl ester, and oxalic acid dialkyl ester. Was done.

However, the alkyl group of these compounds is mainly composed of a lower alkyl ester having 1 to 8 carbon atoms, and many insect repellent tests using this repellent have been reported. As a treatment method with these insect repellents, a method of treating the compound as it is or a fiber with an emulsion together with the resin, or a method of microencapsulating the drug and treating the surface of the synthetic fiber with the resin binder has been attempted.

It is considered that the insect repellents used for pests exert their effects by transpiration of their components and contact with the pests. However, when the component is applied to synthetic fiber products, it is usually lost gradually during use. Especially for washing, the drop-off is remarkable, and when the required repellent or insect repellent component is below the limit amount, the effect is lost. A study on microencapsulation for the purpose of preventing this and maintaining its effect for a long period of time has been conducted, and patents relating to this have been filed in JP-A-63-166429 and JP-A-63-192702, the components of which are It is disclosed.

[0007] Among the pests, as the damage of mites,
There is a problem with mite allergens that causes allergies in children. As a cause of this, it is necessary to remove mites and their carcasses and mite feces. The most accurate method is the method of removal by washing, but it has been pointed out that the conventional method of processing lacks sufficient washing resistance, so the effect of preventing ticks from a single wash is lost. , Improvements to them are strongly desired.

[0008]

At present, there are numerous textile products used for daily life, including bedding and personal items. Invisible to the eyes, these textiles are always home to many indoor dust mites. Because of this, infants and adults have been affected. Most mites in houses are carpets, tatami mats and other rugs, beddings such as bedding, blankets, sheets, pillows, beds, etc. Many sofas and their interiors also serve as food for mites. Is bad and often contains moisture. In short, it seems that the textile products used at home are the most convenient places for the reproduction of mites.

In addition, recently, the structure of a building has become airtight due to the spread of air-conditioning and the humidity is controlled by a humidifier, which is one of the favorable conditions for the generation of mites. Mites are very weak pests for drying and absolutely require moisture. In such an environment, various diseases are found due to mites that breed in the home. For example, in addition to atopic dermatitis caused by mites, allergic symptoms caused by mite allergens, it has come to be said to be the cause of Kawasaki disease, and measures to control ticks at home have been taken up as an urgent issue. Many studies have been published on insect repellents.

The damage caused by indoor dust mites includes asthma caused by the dust mites of the dust mites family, asthma, rhinitis, eye allergies, bites caused by atopic eczema and claw mites, and discomfort caused by mites, as well as mite allergens for infants. It is a big social problem. The main cause of this mite allergen is an allergic disease caused by the mite mite, which is called mite allergen including the organisms, dead bodies, and feces of the mite. As a method of preventing mite allergens from this, it is necessary to keep mites away and to remove the cause of mite allergens.

There are two main types of Dermatophagoides farinae, Dermatophagoides farinae and Dermatophagoides farinae, which are commonly seen in ordinary households. This mite allergen exists both in the air and indoors, but most of it is said to be in indoor dust. In this way, as a result of examining the chemicals that can prevent the damage of problematic mites and their extermination methods, as a result, the cushioning materials used for the rugs, sofas, beds, etc. in the home including textile products used as clothing. Then, application of tick control agents and repellents to the hotbeds of mites came to be carried out sequentially.

As described above, the present invention treats insect repellents as a method for preventing general hygiene pests from growing on textiles and preventing pests such as mites and cockroaches from approaching synthetic fiber fabrics. Is the way to do it. After applying this insect repellent to textile products, it is recommended to add durability to the chemicals that can be maintained for a long period of time with the insect repellent that does not fall off even after washing with a washing machine used in general households. This is a method of treating an intended synthetic fiber cloth with an insect repellent.

[0013]

[Means for Solving the Problems] Many insecticides and repellents for harmful insects such as indoor dust mites have already been studied, and many of their effects have been published. However, if they are examined in detail, many are still insufficient. For example, due to the surface treatment of synthetic resin, the problem of harmfulness of insect repellents, the loss of efficacy after a single washing, or the effective time of insect repellents due to the oxidative action of ultraviolet rays or air And the like lacking in practicality.

In order to prevent damage from mites, the cause of mite allergen must be completely removed by washing. For this reason, it is necessary to treat the synthetic fiber cloth with an insect repellent that can sufficiently withstand washing.
An experiment was also conducted on a method having a practical utility for this washing resistance. Frequent washing is the most effective method for removing mite carcasses, feces, and other mite allergen-causing substances that are attached to bedding such as clothes, blankets, bed sheets, and pillows.

As an insect repellent component, it has been recognized that an aliphatic or aromatic lower alkyl ester is effective. However, the carbon number of the alkyl group is 1 to 8
Was a lower alkyl ester of. Aliphatic and aromatic esters of this lower alkyl ester have a relatively low boiling point, so it is difficult to knead them into a molten resin, and the vapor pressure is low, so that they can be removed from the resin during long-term use. It can be considered to evaporate.

The present inventors have conducted experiments on dialkyl esters of aliphatic and aromatic dibasic acids having higher alkyl groups, for example, alkyl groups having 9 or more carbon atoms, for the purpose of kneading into synthetic resins. As a result, the insect repellent obtained by directly kneading a synthetic resin with an insect repellent containing one or more selected from dialkyl phthalates having 9 to 14 carbon atoms, dialkyl adipates, dialkyl malates, and dialkyl fumarates. As a result of conducting an experiment on the sex, a result that the effect was stable for a long time was obtained, and the present invention was completed.

In the present invention, one or more selected from the group consisting of dialkyl phthalates having an alkyl group having 9 to 14 carbon atoms, dialkyl adipates, dialkyl malates and dialkyl fumarates are blended as an insect repellent component. It is a method of obtaining a durable insect-repellent fiber by kneading and processing a drug into a synthetic fiber.

This insect repellent composition contains an antibacterial agent, a fungicide,
Other insect repellents, repellents, potency enhancers, antioxidants, ultraviolet absorbers, deodorants, fragrances, coloring agents, resin dispersions and the like can also be used in combination.

Textile products for which the insect repellent composition of the present invention is used include general clothing, carpets, tatami mats and other rugs, duvets, blankets, sheets, pillows, bed articles, sofas, and
In addition to the cushioning materials used for them, it is also used for the covers used for these. All of the products treated by the method of the present invention have washing resistance of several tens of times or more.

[0020]

According to the present invention, a synthetic insect fiber is kneaded with a mite insecticide selected from the group consisting of dialkyl phthalates having 9 to 14 carbon atoms, dialkyl adipates, dialkyl malates and dialkyl fumarates. Is a method for producing a durable insect-repellent synthetic fiber cloth which has wash-resisting insect-repellent properties, maintains its efficacy for a long period of time, and does not adversely affect the resins used.

[0021]

EXAMPLES The present invention will be described below with reference to examples, but the present invention is not limited to these examples. Moreover, the insect repellent and the inorganic carrier used in this example are as follows. All percentages shown in the examples are weight percentages.

(1) Insecticide formulation No. 1 Di-n-decyl adipate (60.0 g) and di-2-ethyloctyl phthalate (40 g) adsorbed on 100 g of silica was treated with an insect repellent on a polypropylene resin at 230 to 250 ° C.
Then, 0.05%, 0.1% and 0.3% were kneaded into a film having a thickness of 0.1 mm. Table 1 shows the results.

(2) Insecticide formulation No. 2 Didecyl fumarate 30 g and didecyl phthalate 7
Insect repellent having 0 g adsorbed on 100 g of silica is applied to polyethylene resin at 220 to 230 ° C. at 0.05%, 0.1%,
An antibacterial and antifungal test was performed as a film having a thickness of 0.1 mm by kneading 0.3%. The results are shown in Table 2.

[0024]

[Table 1]

[0025]

[Table 2]

[0026]

According to the present invention, the alkyl group has 9 to 1 carbon atoms.
In this method, one or more selected from the dialkyl phthalates, dialkyl adipates, dialkyl malates and dialkyl fumarates of 4 are kneaded as an insect repellent into a synthetic resin cloth to obtain an insect repellent effect. In particular, these dibasic acid esters are compounds having excellent heat resistance and have no drawbacks such as physical properties and coloring of the resin, and there is no decomposition of the insect repellent due to heat during kneading. This is the method that produces the effect.

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[Procedure amendment]

[Submission date] July 27, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Claims

[Correction method] Change

[Correction content]

[Claims]

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Claims (1)

[Claims] 1. A synthetic fiber containing one or more selected from a dialkyl phthalate having 9 to 14 carbon atoms of an alkyl group, a dialkyl adipate, a dialkyl malate, and a dialkyl fumarate. Insect-repellent and water-repellent synthetic resin cloth and method for producing the same