JPS6147900A - Sheet like article having humidity-proof and insect control property - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a sheet material having moisture-proof and insect-proof properties.

2. Prior Art Conventional insect-repellent supports include crepe-processed paper impregnated with an insect repellent (Japanese Unexamined Patent Publication No. 52-124911), and insect-repellent wrapping paper made of paper containing allethrin (U.S. Pat.
7-43275), or one in which a polyethylene film is extrusion laminated on one side of insect-proof paper to impart moisture resistance.

Problems to be Solved by the Invention In various types of housing, including condominiums and condominiums made of concrete (1'), floorboards, carpets, etc. retain moisture, causing moisture buildup.

Sanitary pests such as claw mites and woolly mites, as well as mold, are increasingly occurring on carpets, etc., but the best way to exterminate these pests is to expose the carpets to sunlight, dry them, and disinfect them. Due to the composition and structure of houses, there is less tendency to do deep cleaning, and DDT,
Currently, the use of organic chlorine agents such as BHC is prohibited or restricted due to their residual toxicity.

Therefore, the method of laying insect-proof paper or moisture-proof paper between the floor surface of a house and the folding floor is widely adopted, but the conventional insect-proof paper mentioned above does not necessarily have safety, long-lasting insecticidal effect, and moisture resistance. Sushi is also not satisfactory.

As a result of intensive research to improve the above-mentioned conventional drawbacks, the present inventors have succeeded in providing a sheet-like material that is moisture-proof and can maintain its insect repellent effect for a long time.

A means to solve the problem: A moisture-proof coating layer is laminated on one side of a sheet-like support, and an insect repellent is added to the composition of the moisture-proof coating layer on the other side of the sheet-like support. It is a sheet-like material made of laminated coating layers and has insect-proof and moisture-proof properties that can limit the amount of insect repellent in the insect repellent coating layer.

Effects The sheet-like support used in the present invention may be any material such as non-woven fabric, woven fabric, polymer film, foamed sheet, paper, etc., but preferably bleached kraft paper, half-painted kraft paper, unfinished kraft paper, etc. Use bleached kraft paper, pure white rolls, or creped versions of these. Further, the sheet-like support may be either air-permeable or non-air-permeable.

The matrix of the moisture-proof coating layer is a wax-based emulsion, a petroleum resin or halogen-based emulsion, a synthetic rubber-based latex, etc., mixed with a small amount of a fungicidal agent such as a halogenated aromatic compound. Various wax emulsions can be used such as paraffin wax emulsion and polyethylene wax emulsion, and synthetic rubber latexes include methyl methacrylate-butadiene latex, styrene-butadiene latex, and acrylonitrile-butadiene latex. Unmodified types and modified types are particularly desirable because they have film-forming properties and are easily dispersed in water due to mechanical dissociation.

The moisture-proof coating layer has a thickness of 1 to 2017 m11, preferably 5 to 1
0 f/m''.Furthermore, as a fungicide used for the stamens, 2(4-thiazole)benzimidazole; N.(tetrachloroethylthio) 3.4, 7.8
Tetrahydrophthalimide; Zinc dithiocarbamate;
2,4,5.6 Tetrachloroin 7-trilonitrile; Metaboric acid; Dithi 2゜2'bis(benzmethylamide)
These are known antifungal agents such as. The amount used is o, oos ~
5f/rr? , preferably 0.01-2 P/,,!
shall be.

In addition, as the insect repellent coating layer, a matrix containing a fungicide and an insect repellent can be used as in the moisture-proof coating layer, but the purpose is to control the dispersion of the insect repellent. It is particularly preferable to use a combination of latex and wax emulsion. In this case, the solid distribution ratio of the synthetic rubber latex and wax emulsion is 30 to 75% of the synthetic rubber latex,
The wax emulsion is preferably 70 to 25%, preferably the synthetic latex is 45 to 65%, and the wax emulsion is 55 to 35q6. In addition, the coating amount of the insect repellent coating layer is 1.0 to 30 f/m, preferably 1.5 to 10 f/m''
It is.

The insect repellents used in the present invention include synthetic pyrethroid compounds and 9 synthetic pyrethrin compounds.

A phosphate compound that belongs to organophosphorus insecticides.

Phosphorothioate compounds, phosphorothioate compounds, phosphorodithioate compounds.

Phosphonate compounds, phosphoramidate compounds,
Fluorophosphate compounds, organochlorine insecticides, carbamate insecticides, dinitrophenol compounds as acaricides, chlorophenyl compounds, phosphate ester compounds, etc., and particularly preferred are synthetic pyrethroid compounds 2 such as permethrin, Arethrin or phosphorothioate compounds, such as fenitrothion (0,0-
dimethyl-〇-3-methyl-4-nitrophenylphosphorothioate), and the coating amount is 0.1 to 10.0? /
m”, preferably 1.0 to 5.0 m.

Incidentally, the moisture-proof coating layer and the insect repellent coating layer can be formed as usual.

The present invention has the above-mentioned structure, and can be used by placing this sheet-like material in a clothing box for the purpose of moisture-proofing and insect-proofing, or by placing it between the floor of a house and a folding floor. , it is possible to maintain the moisture-proof property of the clothes box or the folding floor, and the mold-proof agent in the moisture-proof coating layer and the insect repellent coating layer can prevent the growth of mold caused by slight moisture. The insect repellent in the insect repellent coating layer can prevent the occurrence of mites. Moreover, in the present invention, since the insect repellent is blended with the Vim-based latex, etc., rapid aeration can be prevented, and the insect repellent effect can be exerted for a long period of time. Incidentally, the present invention has the effect that by appropriately selecting the insect repellent, the effect can be maintained for a long period of time as an ant-proof paper, an insecticide band, a mold-proof paper, etc.

Embodiment The drawings show one embodiment of the present invention, and the sheet-like article 1 of the present invention has a moisture-proof coating layer 3 laminated on one surface of the sheet-like support 2. An insect repellent coating layer 4 is laminated on the other surface of the body 2.

That is, in the sheet-like article 1 of the present invention, the moisture-proof coating layer 3 and the insect repellent coating layer 4 are formed on both sides of the sheet-like support 20, and the moisture-proof coating layer 3 and the insect repellent coating layer 4 are formed on both sides of the sheet-like support 20. The layer 4 exhibits sufficient moisture resistance, and since both contain a fungicide, they can prevent the growth of mold, and the insect repellent contained in the insect repellent coating layer 4 can prevent mites. It is possible to prevent the occurrence of similar problems.

Example 1 Both pages kraft paper (basis weight 87 t/rrl, thickness 95μ
As a moisture-proof coating layer on one side of m), synthetic male latex (manufactured by Mitsui Toatsu Co., Ltd., trade name Polylux 717),! :
Wax-based emulsion (manufactured by Daiki Genso Co., Ltd., trade name: Silf Pale CA) and anti-mold agent (product name: Den, manufactured by ICI Co., Ltd.)
Silp) mixed in a solid content ratio of 50:50:0.5 was applied as a solid content in 10 coats and dried.

Next, the moisture-proof coating layer is laminated on one sheet (9), and the other side of two of them is coated with synthetic rubber latex, wax emulsion, fungicide, and insect repellent (fenitrothion).
The solid content ratio was 60:40:0.5:100, and the solid content was 3 S'/m' and dried (
Sol/Sol A) and the solid content ratio is 50:50:
0.5:100 was applied as a solid content at 3 t/rrl and dried (referred to as sample B). As a comparative example, 722 trothion was applied as a solid content on one side of both-page kraft paper. (Sample C)
) and a mixture of synthetic plum latex, wax emulsion, and antifungal agent on one side in a solids ratio of 100:100:1 as in sample A or B, with a solids content of 15 P/ A moisture-proof coating layer coated with m is laminated, and the other side is coated with 1.5f of fenitrothion as a solid content.
/m' coated and dried (referred to as sample D) was prepared, and the sample A-D was stored in a costume box for 2 to 12 months.
Thereafter, the change over time in the residual percentage of fenitrothion in the sample was determined using a gas chromatograph, and the results were as shown in Table 1.

Table 1 As is clear from Table 1, it is recognized that the residual rate of fenitrothion in the present invention (samples A and B) is significantly improved compared to samples C and D.

Example 2 The coating amount of fenitrothion was 0.1, 0.5, 1.
Five types of samples were prepared in the same manner as Sample A in Example 1 except that the values were 0 and 2.0 f/m'', and the woolly mites of each sample were stored in a costume box for 12 months. The insecticidal effect was tested and the results were as shown in Table 2.

(Note) The above test was evaluated in accordance with the Tokyo Metropolitan Institute of Health method.

As is clear from Table 2, the coating amount of fenitrothion was 1
．． At 0 t/- or more, the insecticide can reliably retain 35-t/- or more even after 12 months using the transpiration method.

Example 3 The amount of antifungal agent applied to the sample of Example 1 was changed to 0 and 0, respectively.
, 1Vvl, 0.5 f/vl, 1. Of/rtl
(5 types of t-5 crn square samples of 2,0 f/- were placed in a Petri dish with a diameter of 1 (Ill) and left in a room at 25°C for 7 days, and then kept in that state for 10
The conditions of mold growth under each sample and on the exposed starch surface without the sample after being left for days were observed, and the results were as shown in Table 3.

As is clear from Table 3, the starch under the su/sol contains:
When the antifungal agent is 0.5 f/rr1 or higher, no mold growth is observed.

Example 4 Double-page raft paper, polyester film (thickness 25 Pll), and polyethylene film (thickness 15 μm already used) on one side of the kraft paper were used in Samples A and B and Sunsol A and B in Example IK. Table 4 compares the water vapor permeability and air permeability of each of the extrusion laminated products.

Table 4 (Note) Moisture permeability and air permeability are based on the test method specified in JIS.

As is clear from Table 4, the present invention has better water vapor permeability than any of the comparative examples, and it is recognized that it maintains a suitable air permeability.

[Brief explanation of drawings]

The drawing is a sectional view of one embodiment of the present invention. 1: sheet-like material, 2: sheet-like support, 3: moisture-proof coating layer, 4: insect repellent coating layer.

Claims (2)

[Claims] (1) A moisture-proof coating layer is laminated on one side of a sheet-like support, and an insect-repellent coating layer, which has the composition of the moisture-proof coating layer plus an insect repellent, is formed on the other side of the sheet-like support. A sheet-like material having moisture-proof and insect-proof properties characterized by being laminated. (2) The matrix of the insect repellent coating layer is 30-75% synthetic rubber latex and 70-25% wax emulsion.
%. A sheet-like material having moisture-proofing and insect-proofing properties according to claim 1, characterized in that it is comprised of: