JPH051463A - Synthetic resin floor board and manufacture thereof - Google Patents

Abstract

PURPOSE:To appear a marble pattern of great depth by laminating a colored concealing sheet and a pattern sheet in order on base material, and laminatedly unifying pattern chips of indefinite form so as to partially expose the surface. CONSTITUTION:A colored concealing sheet 2 is placed on a base material 1, and a pattern sheet 3 is placed on it. Next, further on them, pattern chips 4,... cut into indefinite form from a pattern sheet are placed at random so as to partially expose the surface of the pattern sheet 3. These are laminatedly unified with a hot press. Further, the base material 1, the pattern sheet 3, and the pattern chips 4 are constituted of synthetic resin such as vinyl chloride resin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin floor material and a method for producing the same, and more particularly to a synthetic resin floor tile having a natural marble pattern on its surface and a method for producing the same.

[0002]

2. Description of the Related Art As a marble floor tile, a synthetic resin floor tile in which a synthetic resin sheet on which a pattern of natural stone is printed is attached to a base material is known.

[0003]

The conventional floor tiles are disadvantageous in that they are thin and have a poor natural feeling because they are printed, and they have no depth like natural marble. This depth is also related to transparency, and it seems that the subtle color pattern allows the three-dimensional appearance and the depth to increase.

[0004]

Means for Solving the Problems The present invention provides a flooring material having a transparent marble-like pattern with a transparency similar to that of natural stone, and a colored concealing sheet and a pattern sheet are sequentially laminated on a base material. Provided is a floor material made of synthetic resin, on which an irregular pattern chip is laminated and integrated by partially exposing the surface of the pattern sheet.

Further, in order to mass-produce such a synthetic resin flooring material, a colored concealing sheet is placed on a base material, a pattern sheet is placed thereon, and the pattern sheet is further placed thereon. The pattern chip obtained by cutting into an irregular shape is placed randomly so that the surface of the pattern sheet is partially exposed,
We have succeeded in manufacturing by laminating and integrating these by hot pressing.

[0006]

EXAMPLES The present invention will be described with reference to FIGS. 1 and 2. The synthetic resin flooring material of the present invention comprises a vinyl chloride resin base material 1 on which a large amount of a filler, which is usually called anko, is mixed. The colored concealing sheet 2 is placed, the marble-like pattern sheet 3 is placed thereon, and the pattern chip 4 obtained by cutting the pattern sheet 3 into an indeterminate shape is placed on the surface of the pattern sheet 3. Randomly arranged so as to be partially exposed, and these are laminated and integrated by hot pressing.

The high-filler vinyl chloride resin sheet used as the base material 1 is a black-colored sheet having a thickness of 0.5 mm and containing a large amount of inorganic powder such as calcium carbonate in order to suppress expansion and contraction due to thermal expansion of the synthetic resin. Stack 3 to 5 sheets,
In addition, the glass fiber mesh 5 is polymerized to prevent expansion and contraction of the entire floor material. Note that the glass fiber mesh 5 takes into consideration the expansion and contraction balance with the sheet laminated on the surface of the base material 1
Sandwich in the upper layer or place on the surface to prevent warpage.

The uppermost pattern chip 4 is of the same quality as the pattern sheet 3, and the pattern sheet 3 is made of a vinyl chloride resin mixed with a colorant and a pearl pigment and is calendered into a 0.5 mm thick sheet. It was formed. In this sheet, the colorant, the pearl pigment and the vinyl chloride resin were kneaded by a calender roll to form a flow pattern in which the color portion, the semi-transparent portion and the light reflecting portion were appropriately mixed, and even a natural marble pattern was exhibited. ing. The pattern chip 4 is obtained by cutting this sheet into an irregular shape having a diameter of about 150 mm.

In order to arrange the irregular pattern chips 4 on the pattern sheet 3, the flow patterns of the pattern chips 4 are randomly oriented so that the surface of the lower pattern sheet 3 is partially exposed. Place with a gap in between. It is natural that the size of the gap is approximately the same as the area of one of the arranged pattern chips 4. As a result, a deep pattern close to that of natural stone can be formed.

The colored concealing sheet 2 is a sheet interposed between the pattern sheet 3 and the substrate 1, and is a white opaque sheet. With this sheet, even if the lower base material 1 is black, the upper pattern sheet 3 and the pattern chip 4 are used.
The base material 1 does not appear to be blackish through the semi-transparent part, and this prevents the transparency of the marble pattern from being impaired.

After stacking the sheets in this manner, the floor material of the present invention is molded by hot pressing at a temperature of about 150 ° C. for about 10 minutes to laminate and integrate them. By hot pressing, the sheets are welded together to be integrated, and the overlapping portions between the pattern chips 4 in the upper layer or the unevenness between the pattern chips 4 and the pattern sheet 3 are flattened flush. This is cut into an appropriate size and used as a floor tile.

[0012]

Industrial Applicability According to the present invention, mass production of a synthetic resin flooring material having a natural marble pattern, which is deeper, has better abrasion resistance, and is superior in durability, as compared with the conventional thin material produced by printing. There is an advantage that can be.

[Brief description of drawings]

FIG. 1 is a perspective view showing a disassembled state of a synthetic resin flooring material according to the present invention.

FIG. 2 is a partially enlarged vertical sectional view of a synthetic resin flooring material according to the present invention.

[Explanation of symbols]

1 base material 2 Coloring concealment sheet 3 pattern sheets 4 pattern chips

Claims (2)

[Claims] 1. A synthetic method in which a colored concealing sheet and a pattern sheet are sequentially laminated on a substrate, and an irregular pattern chip is laminated and integrated on the pattern sheet by partially exposing the surface of the pattern sheet. Resin floor material. 2. A colored concealing sheet is placed on a base material, a pattern sheet is placed thereon, and a pattern chip obtained by cutting the pattern sheet into an indeterminate shape is provided on the substrate. A method for producing a synthetic resin flooring characterized in that a pattern sheet is randomly placed so that the surface thereof is partially exposed, and these are laminated and integrated by hot pressing.