JPS5923253B2 - Method for manufacturing a synthetic resin sheet in which a portion of small pieces are regularly arranged - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the production of a synthetic resin sheet that is used mainly for interior decoration such as flooring and wall materials, and in which the negative portions of the small pieces forming the pattern of the sheet are regularly arranged. Regarding the law,
The purpose is to provide a simple manufacturing method for producing a synthetic resin sheet with a good design, in which the small sections have a geometric pattern in which they are regularly arranged, and the other sections have a mosaic pattern. It is.

Conventionally, a synthetic resin sheet for heavy walking (for flooring) in which a mosaic pattern is formed with a large number of small pieces (chips) made of synthetic resin has been known. Alternatively, since it is irregularly scattered and fixed to the base material, the entire surface of the sheet exhibits a mosaic pattern, resulting in a monotonous design.

In addition, the chips are made by crushing, cutting, punching, etc. a semi-rigid synthetic resin sheet formed by a calendar method, and it is difficult to obtain chips with complicated shapes. Due to its shape, it is not possible to form an excellent mosaic pattern.

Furthermore, the small pieces formed from the sheet produced by the calendering method as described above lack heat resistance and abrasion resistance because the molecules do not have a crosslinked structure. Therefore, a sheet using the small pieces on its surface has the drawback of lacking heat resistance and abrasion resistance. The present invention was developed in view of these points, and the present invention's 15-year manufacturing method uses a base material on which a large number of small pieces of synthetic resin A are regularly arranged and fixed, and a space other than the space to which the small pieces A are fixed. A large number of small pieces of synthetic resin B and thermoplastic synthetic resin powder are sprinkled on the area, and the sprayed surface and the surface of the large number of fixed small pieces A are leveled,
Heat and press to melt the thermoplastic synthetic resin powder, form joints with the molten resin, and fix the large number of synthetic resin pieces B onto the base material in a mosaic pattern through the joints. This is a summary of the points made.

Next, details of the method of the present invention will be explained with reference to the drawings.

251 is a base material, and the base material 1 is made of a strong and dimensionally stable material such as asbestos paper, glass fiber cloth, nonwoven fabric, or synthetic resin sheet.

Further, 2 is a thermoplastic synthetic resin paste such as 30 vinyl chloride resin paste applied to the surface of the base material 1 as necessary, and when the paste 2 is used, small pieces A and B to be described later are used.
And the adhesion of the thermoplastic synthetic resin powder 3 can be strengthened.

In addition, A is a large number of small pieces of synthetic resin that are integrally formed on the 2 surfaces of the paste 35 and arranged regularly, in other words, arranged to form a geometric pattern, before the paste 2 gels. In order to integrally form the small piece A on the base by arranging it on the two sides of the plate, form an intaglio plate with a number of recesses for forming the piece A. The base material 1 is filled with a thermoplastic synthetic resin paste such as a resin paste and heated to semi-gel the paste.
are laminated through the paste 2, and the paste filled in the recess by heating and pressurizing is gelled together with the paste 2 used for laminating the base material 1, and the small pieces A are fixed on the base material 1. That's what I do.

It should be noted that instead of fixing a large number of small pieces A regularly and continuously in the vertical and horizontal directions as shown in the figure, they may be fixed in the form of bolts at small intervals in the vertical and horizontal directions.

Furthermore, the intaglio plate may be a circular intaglio plate and the circular intaglio plate may be rotated to enable continuous production. Furthermore, in the thermoplastic synthetic resin paste forming the small pieces A, the crosslinking agent may be a reactive plasticizer or both may be blended so that the gelled molecules form a crosslinked structure. This increases the heat resistance and abrasion resistance of the small pieces A. Further, B is a small piece scattered on the base material 1 in a space other than the space where the small piece A is fixed, and the small piece B is a front gauze and has an arbitrary shape like the piece A. The small piece B is colored in a different color from the small piece A, and the small piece B is a flat intaglio plate or a circular intaglio plate having many recesses carved with various patterns, and a thermoplastic synthetic resin paste such as vinyl chloride resin paste is applied to the recesses of the plate. It is manufactured by filling it and heating it to gel. Therefore, compared to the above-mentioned known small pieces obtained by cutting, crushing or stamping a sheet by the calender method, it is possible to form small pieces B with a complicated shape or delicate pattern. Furthermore, the thermoplastic synthetic resin paste may be blended with a crosslinking agent, a reactive plasticizer, or both to make the molecular structure of the small pieces B into a crosslinked structure to increase heat resistance and abrasion resistance.

However, in the above-mentioned scattering, it is sprinkled together with the thermoplastic synthetic resin powder 3 such as vinyl chloride resin compound powder, or on the sprayed surface of the powder 3, and the scattered pieces B and the powder are 3 covers a part of the small pieces A, remove this and level it so that the surface of the small pieces A and the surfaces of the scattered pieces B and powder 3 are flush with the road surface. .

The leveling operation is performed by, for example, applying vibration to the base material 1, and by applying vibration, it is possible to easily level the surface.

When the leveling work is completed, the base material 1 is heated and pressed to melt the thermoplastic synthetic resin powder 3 and make the small pieces B float in the molten resin, and then cooled. A product is produced in which a large number of small pieces B form a mosaic pattern through the joints 4 formed by cooling the molten resin. Therefore, the sheet produced by the method of the present invention has a large number of small pieces A regularly arranged as shown in FIG. Body B has a special design that forms a mosaic pattern, and the design is excellent. In addition, both the particles A and B have a cross-linked molecular structure and have high heat resistance and abrasion resistance, so the sheet whose surface is formed with the particles A and B has high heat resistance and abrasion resistance. It is. As is clear from the above explanation, according to the manufacturing method of the present invention, a sheet with an excellent design in which a large number of small pieces A whose surfaces are regularly arranged and a large number of small pieces B exhibiting a mosaic pattern through the joints 4 can be easily produced. It is.

Next, an embodiment of the manufacturing method of the present invention will be described based on the drawings.

1 is 0.7m thick and 19007I77 wide! A base material 1 was made of a long piece of Aspest paper, and a vinyl chloride resin paste 2 was applied to one side of the base material 1.

(See Figure 2). However, the vinyl chloride resin paste 2 is 121-L (manufactured by Nippon Zeon Co., Ltd., resin) 100
parts (the same applies below parts by weight), D. O. P. (manufactured by Daihachi Chemical Co., Ltd., plasticizer) 50 parts, W-240 (manufactured by Dainippon Ink Manufacturing Co., Ltd., plasticizer) 7 parts, MA-8 (manufactured by Akishima Chemical Co., Ltd., stabilizer) 2 parts, CacO3 ( This is a composition consisting of 50 parts of filler (manufactured by Bikafunka Co., Ltd.). On the other hand, a vinyl chloride resin paste for forming the small pieces A is filled into the intaglio part of a rotary intaglio plate in which a large number of arbitrary designs are regularly arranged in intaglios, and the base material 1 is filled with the vinyl chloride fat paste 2. The base material 1 is bonded to the filled paste surface through the surface and heated to 200°C and pressed slightly.
An intermediate product was obtained in which the small pieces A were regularly arranged on the top.

(See Figure 3) The vinyl chloride resin paste used to form the small pieces A was 131 (manufactured by Nippon Zeon Co., Ltd., resin) 100 parts D. O. P. (manufactured by Daihachi Kagaku Co., Ltd., plasticizer) 50 parts W
-240 (manufactured by Dainippon Ink Manufacturing Co., Ltd., plasticity)
10 parts TD-1500 (manufactured by Dainippon Ink Manufacturing Co., Ltd., reactive plasticizer) 10 parts PC-3
(manufactured by Sankyo Kasei Co., Ltd., crosslinking agent) 5 parts B. P. O. (manufactured by Shoko Kagaku Co., Ltd., polymerization initiator) 0.
1 part LT-700B (manufactured by Akishima Chemical Co., Ltd., stabilizer) 5
Part W-212J (manufactured by Katsuta Chemical Co., Ltd., viscosity reducing agent)
5 parts CacO3 (manufactured by Bihoku Funka Co., Ltd., filler) 400 parts Colorant
A composition consisting of 10 parts was used.

Next, in the space other than where the small piece A was fixed with the intermediate product,
Synthetic resin pieces B having an arbitrary shape and colored differently from the pieces A, and vinyl chloride resin compound powder 3 were scattered in ten places.

(See Figure 4) The mixing ratio of the synthetic resin pieces B and the vinyl chloride resin compound powder 3 is 3:1. Company-made, resin)
100 copies D.

O. P. (manufactured by Daihachi Kagaku Co., Ltd., plasticizer) 30 parts LT-
A composition consisting of 3 parts of 700B (manufactured by Akishima Kagaku Co., Ltd., stabilizer) was used.

The synthetic resin piece B was formed using the same composition as the piece A except that only the coloring agent was replaced with a different colored colorant, and was molded by a concave plate molding method.

After scattering the synthetic resin pieces B and the vinyl chloride resin compound powder 3 in the space as described above, the pipe radar base material 1 is vibrated to spread a small amount of the powder 3 and the vinyl chloride resin compound powder 3 covering the synthetic resin pieces A. While removing the small piece body B, the small piece body A,
The surfaces of B and powder 3 were leveled so that they were flush with the road surface.

Next, the powder 3 was heated at 200° C. for 2 minutes to melt it, and the pieces B were suspended in the molten resin. Next, the molten resin was naturally cooled to form joints 4, and a product in which a large number of small pieces B formed a mosaic pattern through the joints 4 was obtained. (See Fig. 5) Therefore, as shown in Fig. 1, this product has a geometric pattern in which a large number of small pieces A are regularly arranged, and the parts other than the geometric pattern are made up of a large number of small pieces A arranged through joints 4. Body B creates an excellent design with a mosaic pattern.

[Brief explanation of drawings]

Fig. 1 is a partially enlarged plan view of a sheet manufactured by the method of the present invention, Figs.
FIG. 5 is a partially enlarged longitudinal sectional view of the product. A, B...Synthetic resin piece, 1...Base material, 3...Thermoplastic synthetic resin powder, 4...
...Joint.

Claims (1)

[Claims] 1. Using a base material on which a large number of small pieces of synthetic resin A are regularly arranged and fixed, a large number of small pieces of synthetic resin B and thermoplastic synthetic resin powder are scattered in spaces other than those to which the small pieces A are fixed. , leveling the scattering surface and the surface of the large number of fixed small pieces A,
The thermoplastic synthetic resin powder was melted by heating and pressing, joints were formed with the molten resin, and the large number of small pieces of synthetic resin B were fixed onto the base material in a mosaic pattern through the joints. A method for producing a synthetic resin sheet in which a portion of small pieces are regularly arranged.