JP2001277446A - Olefinic resin-laminated sheet subjected to surface stainproofing treatment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an olefinic resin-laminated sheet, in which stainproofing treatment is performed. SOLUTION: The olefin resin-laminated sheet subjected to stainproofing treatment is constituted of providing a primer layer consisting of a modified ethylene-vinyl acetate base or modified polypropylene base on one side or both sides of a sheet, in which an olefinic resin is laminated on both sides of a fibrous base fabric, and furthermore of providing a stainproofing top layer of an acrylic compound or a fluorine base compound. As an effect, the olefinic resin sheet is suitable as a stainproofing treating method having high stainproofing properties and can be utilized for various olefinic resin sheets instead of a vinyl chloride base resin generating harmful substance and gas at time of incineration. Further, thermally melt-sticking is enabled and an effect is exhibited as the laminated sheet having good workability in a sewing field.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides an olefin resin laminated sheet having excellent antifouling properties which can be used for a sunshade tent, a house tent, a truck top, a general sheet, a curing sheet, and the like. It is.

[0002]

2. Description of the Related Art Although vinyl chloride resins generate harmful substances and gases due to improper incineration, environmental problems must be improved. Sheets that have been subjected to surface treatment are generally used, and the antifouling treatment method including the adhesion treatment for the surface antifouling treatment of the next-generation polyolefin resin laminated sheet is currently the most suitable formulation. It is a situation that has not been found. Although a method of performing surface antifouling treatment on an olefin-based laminated sheet whose surface has been modified by general corona treatment is also being studied, there is no definitive formula for complete antifouling treatment, and it needs to be studied.

[0003]

At the time of transition from vinyl chloride resin to olefin resin, a surface treatment of a polyolefin laminate should have good durability and excellent antifouling performance. It's time to come. Therefore, the problem is that the primer layer between the polyolefin-based substrate surface layer and the fluorine-treated or acrylic-treated surface layer is laminated in any configuration, and the durability of the fluorine-treated and acrylic-treated products with high antifouling property is improved. An object of the present invention is to provide an applied antifouling treated olefin-based laminated sheet.

[0004]

Means for Solving the Problems In order to solve the above-mentioned problems, the present inventors have made direct fluorine treatment or acryl treatment on the surface of an olefin-based sheet difficult to bond.
An appropriate prescription as a primer layer was examined, and a desired antifouling treatment layer was laminated thereon. As a result, the following prescription was found. The prescription is that the modified ethylene vinyl acetate resin or the modified polypropylene resin is used as the primer-adhering agent in the anchoring treatment so that the adhesive strength between the fluorine-treated or acrylic-treated surface antifouling layer and the base olefin resin layer. To provide a durable antifouling treated olefin-based laminated sheet.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The base material of the olefin resin laminated sheet subjected to surface antifouling treatment of the present invention is made of synthetic fiber such as polyester, polyamide, acrylic, polypropylene, polyethylene, aramid, glass fiber, natural or natural fiber. A fabric composed of fibers selected from recycled fibrous fibers and the like is used.

As the olefin resin, a thermoplastic resin such as polypropylene, polyethylene, or an olefin copolymer such as an ethylene / vinyl acetate copolymer can be selected, and both sides of the base material are calendered by a calendaring machine. -Forming, pressure bonding and lamination. In addition to a calendar processing machine, a T-die method or the like can be used.

As the primer (undercoat) layer, a modified ethylene / vinyl acetate resin, for example, product number P957 manufactured by Honey Chemical Co., Ltd., or a modified polypropylene resin, for example, product number P958 manufactured by Honey Chemical Co., etc. The thickness is 3 to 100 μm, preferably 5 to 40 μm, by a gravure coater.

As the top (surface) layer of an antifouling property of an acrylic compound or a fluorine compound, an acrylic or fluorine antifouling agent conventionally used for antifouling processing of a vinyl chloride laminate sheet is used. Available, top layer thickness is 3-10
0 μm, preferably 5 to 40 μm is suitable and is formed by a comma coater. Examples of commercially available antifouling agents include acrylic resin Acrypet MD of Mitsubishi Rayon Co., Ltd. and alkyl methacrylate and alkyl fluoride acrylate of Honey Chemical Co., Ltd. There is a polymer resin part number A071, and the like.

The product having a primer layer on both sides according to the present invention can be heat-sealed, and can be easily sewn for various products and applications. This has made it possible to provide a non-vinyl chloride product having the same antifouling performance and processability as conventional vinyl chloride products.

The antifouling performance of the product of the present invention and the comparative example was evaluated by measuring each sample at 60 ° C., 2 parts of carbon black and 8 fields of soil.
0 parts and 10 parts of mineral oil were put into a compound for determining antifouling properties, and after sufficiently stirring, each sample was taken out and the surface contamination state was measured using a Minolta CR-200 colorimeter using the state before each test as a standard. Was measured. The pollution status is
The samples were evaluated on a three-point scale: “as is” from the compound, “after wiping with a dry cloth”, and “after washing with water”.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below.
FIG. 1 is an explanatory sectional view of an olefin-based resin laminated sheet subjected to a surface antifouling treatment according to the present invention. 1 is a fabric composed of fibers selected from synthetic fibers such as polyester, glass fibers, and natural or recycled fiber fibers, 2 is a fluorinated layer, 3 is a primer-treated layer, and 4 is an olefin-based layer.
Layer.

Example 1 A polyester filament 250D was coated with a basis weight of 70 g / m2.
Film thickness 0.25m on both sides of ² plain weave fabric
m, an olefin resin film having the following composition is calendered and laminated to form a base sheet, and a primer layer on both surfaces thereof is formed of a modified ethylene / vinyl acetate resin P957 manufactured by Honey Chemical Co., Ltd. (30% solution) was laminated to a thickness of 5 μm. Further, as an antifouling top layer on the outermost layer on one side, an alkyl methacrylate manufactured by Hani Kasei Co., Ltd.
Fluorinated alkyl acrylate copolymer resin A071 (30
% Solution) by a comma coater to form a sheet having a thickness of 30 μm. Olefin resin blend Polypropylene resin manufactured by AIS Japan Co., Ltd. Sansoplane Grade 211-64 80 parts Ethylene vinyl acetate resin EVAflex P1905 manufactured by Mitsui Petrochemical Chemicals Co., Ltd. 20 parts

Example 2 A base sheet having exactly the same structure as in Example 1 and a top sheet of the same kind as in Example 1 having a thickness of 10 μm were placed on one side of a laminated sheet comprising a primer layer. Sheets laminated with a thickness of
Created.

Example 3 A modified polyolefin resin P (manufactured by Honey Chemical Co., Ltd.) was used as a primer layer on both surfaces of the same base sheet as in Example 1.
958 (30% solution) was laminated to a thickness of 5 μm. Further, an acrylic resin acrylpet MD (manufactured by Mitsubishi Rayon Co., Ltd.) (20% solution) was laminated on the outermost layer on one side as an antifouling top layer by a comma coater to form a sheet having a thickness of 30 μm.

COMPARATIVE EXAMPLE 1 A base sheet having exactly the same structure as that of Example 1 except that neither the primer treatment nor the antifouling top treatment was performed and the surface of the olefin resin was used as a comparative example. Let it be 1.

COMPARATIVE EXAMPLE 2 Corona discharge treatment, which is a general treatment for improving adhesiveness, was performed on both surfaces of a base sheet having exactly the same structure as in Example 1, and an antifouling top layer was formed on the surface. A sheet was prepared by laminating an alkyl methacrylate / fluorinated alkyl acrylate copolymer resin A071 (30% solution) manufactured by Honey Chemical Co., Ltd. with a comma coater by 30 μm.

Comparative Example 3 A polyvinyl chloride film of the following composition formed to a film thickness of 0.25 mm was laminated on the same cloth as in Example 1 by a double-sided calendar to form a base sheet. Alkyl methacrylate manufactured by Honey Kasei Co., Ltd.
G-fluorinated alkyl acrylate copolymer resin A071
(30% solution) was laminated by a comma coater to form a 30 μm laminated sheet.

Each sample was placed in the compound for determining antifouling properties as described above, and after sufficiently stirring, each sample was taken out and the surface contamination was measured with a Minolta CR-200 colorimeter using the state before each test as a standard. Table 1 shows the results of the
Shown in

[0019]

[Table 1]

In Comparative Example 2 in Table 1 above, since the primer layer was not treated only by corona treatment, the adhesion of the antifouling treatment layer was poor, and the treatment layer was peeled off by stirring in the antifouling property judgment compound. ing.

It can be seen that the antifouling property is significantly improved by the fluorine treatment. In addition, only the corona treatment, which is a general primer treatment, causes the fluorine-treated layer to fall off, failing to maintain good antifouling performance.

Further, in the case of a vinyl chloride product, bleeding of the plasticizer occurs and the antifouling performance deteriorates. However, since the plasticizer does not contain the plasticizer, a higher antifouling property than that of the conventional PVC product can be maintained.

[0023]

It is understood that the antifouling property is significantly improved by the fluorine treatment. We have developed an antifouling treatment method with high antifouling properties for olefin resin sheets and can be used for various olefin sheets. In addition, heat fusion processing is also possible, and the workability is good even on the sewing surface, and the sheet is not inferior to conventional vinyl chloride products.

[Brief description of the drawings]

FIG. 1 is a sectional view of an olefin-based resin laminated sheet according to the present invention.

[Explanation of symbols]

 1 Fabric 2 Fluorine treatment layer 3 Primer treatment layer 4 Olefin-based sheet layer

Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat II (Reference) // D06M 15/256 D06M 15/256 F term (Reference) 4F100 AK03B AK03C AK07D AK17E AK25E AK41 AK68D AL06D BA04 BA05 BA06 BA07 BA10B BA10E BA13 DG01A DG11A EJ65D GB90 JL06 4L033 AC04 CA17

Claims (2)

[Claims] 1. A sheet comprising a fibrous base fabric and an olefin-based resin laminated on both sides thereof, on one or both sides of a sheet, a primer layer of a modified ethylene / vinyl acetate-based or modified polypropylene-based resin is interposed to form an acrylic resin. Olefin-based resin laminate having an antifouling treatment, characterized in that an antifouling top layer of a fluorinated compound or a fluorinated compound is laminated.
G. 2. The surface according to claim 1, wherein the fluorine compound forming the antifouling top layer is polyvinylidene fluoride or a copolymer of vinylidene fluoride, tetrafluoroethylene and propylene hexafluoride. An anti-fouling treated olefin resin laminated sheet.