JPS5965001A - Mothproof sheetlike support - Google Patents

Abstract

PURPOSE:A mothproof sheetlike support, having a mothproofing agent-impermeable coating layer on one side thereof and a mothproof agent and further a mothproof agent-permeable layer thereon on the other side, and capable of lasting the insecticidal effect for a long time without the safety and hygienic problem. CONSTITUTION:A mothproof sheetlike support prepared by forming a mothproof agent-impermeable coating layer, e.g. polyvinyl alcohol or carboxymethyl cellulose, on one side of a sheetlike support, e.g. a high polymer film, woven fabric, nonwoven fabric, expanded sheet, spunbonded article or paper, preferably paper, and forming a mothproof agent layer, e.g. a synthetic pyrethroid compound or synthetic pyrethrin compound, preferably permethrin, on the other side of the above-mentioned support, and further a mothproof agent-permeable layer on the mothproof agent layer. USE:Mothproof paper for TATAMI beds, repellents paper for ants, mothproof packaging paper for wood, attracting and killing bands, etc.

Description

[Detailed description of the invention] The present invention υ relates to an insect-repellent sheet-like support.

More specifically, the present invention relates to an insect-repellent sheet-like support with improved safety and durability of insecticidal effect.

(Technical background) That? As a result of the increase in concrete housing complexes such as condominiums, tatami mats, juratan, etc.
The occurrence of sanitary pests such as mites, mites, and mites on JR, Shinichi, and Noyutan is increasing (see, for example, the Asahi Shimbun's July 11, 1981 internal edition of Tokyo Living Natural History). The method of exterminating these pests is to dry tatami mats, juratan, etc., but this is often difficult due to the structure of the house, and cleaning etc. is generally not recommended. I)I)T is no longer practiced, and still remains due to problems such as residual toxicity.

The reality is that chemical spraying is no longer being carried out due to bans on the use of organic chlorine agents such as B I-I C. It is also known to spread insect repellent paper between the tatami surface and the tatami floor, but with conventional insect repellent paper, the insect repellent easily evaporates from the paper and has a short lifespan, so the tatami must be replaced next time. It is difficult to prevent the occurrence of tick mites, woolly mites, etc.

(Prior art) Insect-proof papers include crepe-processed paper impregnated with a prevention piece↓ (Japanese Unexamined Patent Publication No. 5.2.-1'24911), and insect-proof wrapping paper made of paper containing allethrin (Japanese Unexamined Patent Publication No. 5-2-1'24911). 7.=4
3, 12, 75) or insect repellent, which are made by extrusion laminating polyethylene film on one side. It wasn't something that should have been done.

(Object of the Invention) The present invention provides an insect repellent sheet-like support that has no safety and health problems except for the above-mentioned drawbacks and has a long-lasting insecticidal effect.

(Structure of the Invention) As a result of intensive studies to eliminate the above-mentioned drawbacks, the present inventors have found that
A sheet-like support, an insect repellent-impermeable coating layer formed on one surface of the support, an insect repellent layer formed on the curved surface of the support, and an insect repellent permeable coating layer formed on the insect repellent layer. It has been found that an insect-repellent sheet-like support characterized by having a protective coating layer is safe, has no problems in terms of construction, and can maintain an insecticidal effect for a long time.

The insect-proof sheet-like support according to the present invention includes insect-proof paper for tatami floors,
Ant-proof paper, insect-proof wrapping paper for clothing, repellent bread l-” 1 in 4y
Needless to say, it will be used for historical purposes.

[14] Components of the present invention will be described in detail below.

(Sheet-like support) Polymer films, woven fabrics, non-woven fabrics, foamed sheets, carbon-bonded products, paper, etc. are used as sheet-like supports, and these supports can be used even under ventilation conditions. A suitable support is paper, which may be a bleached kraft paper, semi-11 il! I kraft paper, unbleached kraft paper,
Pure white curled paper is used. These items may be creped.

(Insect repellent impermeable coating layer) In order to extend the insect repellent effect and improve safety, the insect repellent permeable coating layer formed on one side of the support body is made of polyvinyl alcohol, carboquine methylcellulose (CMC), etc. ) etc. will be painted. The coating amount is 1 sail = 10'/
,? The preferred range is 0.5 to 5'42.

(Insect repellent) Insect repellents used in the present invention include synthetic pyrethroid compounds, synthetic pyrethrin thread compounds, phosphate compounds belonging to organophosphorus insecticides, phosphorothiolate compounds, phosphorothioate compounds, and phosphorodithioate compounds. compounds, phosphonate compounds, bosphoramidate compounds, fluorophosphate compounds, organochlorine insecticides, carbamate insecticides, dinitrophenol compounds as acaricides, chlorophenyl compounds, phosphate ester compounds, etc. .

Among the above, preferred are ξ-methrin and allethrin, which are a type of synthetic pyrethroid-1 compound.

It is fenitrothion ((1,0-dimethyl 0-3-methyl-4-nitrophenylphosphorothioate)), which belongs to phosphorothioate compounds.

This insect repellent is applied to the support by 0.5 to 1.0.0,'/
, 1, preferably 1.0 to 5'0'4'. Coating is generally done using a Meyer or Parr air knife.

(Insect repellent permeable coating layer) The insect repellent permeable coating layer formed on the insect repellent layer is as follows:
Coating agent for each building e.g. wax emulsion, petroleum 1
71 Fat and rosin emulsions are used, but
Among these, rosin emulsions are suitable because they are compatible with insect repellents.

Insect repellent tII powder by coating with rosin emulsion.
Disappearance is moderately controlled.

The coating layer is 1.0 to 30'/,,=, preferably 1.5 to lo'/,,? It is.

Since the insect repellent evaporates easily through the insect repellent permeable coating layer, the insect repellent effect lasts for a long time.

(Example) In order to elucidate the present invention in more detail, Examples are shown below, but the following examples do not limit the present invention.

Example 1 Double-grained kraft paper (Tsubo't 78'/ni1. Thickness 90μ
An insect repellent-impermeable J-bound sheet was coated on one side of the sheet with a polyvinyl alcohol aqueous solution at a solid content of 2.5'/n, and then dried. Then, on the other side, a fenitrothion emulsion as an insect repellent was added as a solid content of 2·o/,,,I! It is processed and dried.

A rosin-based emulsion (Suzuno ξin N-7 manufactured by Arayo Kagaku Co., Ltd.) is used as a transparent coating layer on this insect repellent-coated surface.
05) as a solid content was coated at 3.5 degrees and dried to obtain an insect repellent sheet-like support (sample A). Separately, as a comparative example, 3.5 fl/n of fenitrothion was added as a solid content on one side of double-sided kraft paper. Coated (sample B),
A polyvinyl alcohol aqueous solution (solid content: 2.5%) was coated on one side of double-sided kraft paper, and a 2.5% coat of fenitrothion was coated on the other side and dried (sample C). Seed samples were stored in wardrobes for 2 to 12 months, and after a certain period of time, the samples were analyzed to determine the residual rate of fenitrothion using a gas chromatograph.

The results are shown in Table 1.

Table 1 Example 2 Fenitrothion coating amount 1'/nZ2, 0.5', 1, 1.0 in the same manner as Sample A of Example I
'/',,z.

2'0'4? Four types of samples were prepared, and a woolly mite insecticidal effect test was conducted on the samples that were stored in a wardrobe for 12 months. The results are shown in Table 2.

The tests listed in Table 2 (Note) were evaluated using the Tokyo Metropolitan Institute of Health method.

As is clear from the results in Tables 1 and 2, the residual rate of fenitrothion in the insect repellent sheet-like support according to the present invention is surprising compared to conventional products, and the insecticidal effect is also long-lasting. Remarkable.

Patent applicant: Oji Paper Co., Ltd.

Claims (1)

[Claims] A sheet-like support, an insect repellent permeable coating layer formed on one side of the support, an insect repellent layer formed on the other side of the support, and an insect repellent formed on the insect repellent layer. An insect repellent sheet-like support comprising a transparent coating layer.