JPH0262399B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for manufacturing a decorative material having a penetrating pattern of colored granules and a gradation pattern.

(Prior Art and Problems) Flooring materials with a penetrating pattern (so-called inlaid flooring materials) have been known as shown in Japanese Patent Publication No. 8569/1983. However, conventional inlaid flooring has patterns that are too bright, unnatural and lacks depth, making the design unsatisfactory for consumers, who are looking for a pattern with a natural image similar to a gradation pattern. It was getting worse.

Several proposals have been made to obtain inlaid sheets with gradation patterns, but these include a method in which the pattern is formed using multiple plates while gradually changing the shape of the stencil opening, and a method in which the color of the underlying colored layer is changed. There is a method of depositing colored granules so thinly that they are not hidden in a pattern.

The former method is undesirable because there are so many plates that the equipment becomes expensive and it occupies a large space.

Further, in the latter case, the gradation pattern is limited to only a very thin part of the surface and cannot be obtained over the entire thickness, and the durability of the gradation pattern part is weak.

(Problem to be solved by the invention) The present invention is capable of imparting an appropriate shading pattern to an inlaid pattern over the entire thickness by mixing colored granules in a certain width area around the pattern boundary, thereby creating a harmonious design. The first objective is to provide a method for manufacturing a decorative material having an improved gradation pattern, and to provide a method for manufacturing a decorative material in which a shading pattern is obtained over the entire thickness within a small unit pattern surrounded by clear joints. A second purpose is to provide a manufacturing method.

(Structure of the Invention) The first invention of the present application provides a method for manufacturing a decorative material in which a plurality of printed pattern areas of colored granules are continuously formed on a base material, and the printed pattern areas are molded under heat and pressure. A gradation pattern is obtained by printing with different color granules from the adjacent printed pattern areas only in a certain width area centered on the boundaries of the adjacent printed pattern areas to form a blurred pattern. The gist of this paper is a method for manufacturing decorative materials.

Hereinafter, the present invention will be explained based on the drawings.

FIG. 1 is a sectional view of a decorative material obtained according to the first invention of the present application. 1 is the base material, asbestos,
Cellulose felt, glass fiber-pulp mixed sheets, etc. are suitable, and sheets of PVC etc. can also be used.

The printed pattern areas 2, 3, 4, 5 are successively formed by colored granules 6, 7, 8, 9 of different colors using a flat bed stencil machine or a rotary screen machine. Colored granules 6, 7, 8, 9 are 10~
It is a thermoplastic synthetic resin such as polyvinyl chloride (PVC) with a mesh size of 60.
It is made by adding stabilizers and application materials and then pelletizing the sheet.

The colored granules 6 cover the printed pattern area 2, and the same granules 7,
8 and 9, the printed pattern areas 3, 4, and 5 are formed with a thickness of 2 to 8 mm, but at the boundary of the pattern area, a part of a certain width (about 1 to 3 cm) from the center of the boundary is brushed with a brush. Adjacent pattern areas 2 and 3, 3 and 4, 4
and 5, each of mutually different colored granules 6', 7', 8',
9' is mixed in, resulting in a blurred pattern.

FIG. 2 is a manufacturing process diagram of the decorative material of the first invention,
10 to 60 meshes of colored granules such as PVC are deposited on the substrate 1 using a flatbed stencil machine or rotary screen machines A, B, C, and D to form printed pattern areas 2, 3, 4, and 5 of 2 to 8 mm. The printed pattern areas 2 and 3, 3 and 4, which are adjacent to each other, are continuously formed to a certain thickness, and are printed with a brush on a part of a certain width (approximately 1 to 3 cm) from the center of the boundary of the pattern area using the brush device 10.
and 5. Mix in the different colored granules. The brush may be a rotating brush or a flat brush may be used in a direction transverse to the flow direction. By doing this, colored granules of different colors are mixed into adjacent pattern areas only in a certain width area centered on the border of the pattern area, resulting in a blurred pattern. Preferably, the brush contacts the entire thickness of the granulate.

Subsequently, the heater 11 and the press device 12,
Heat and pressure mold at 12' to 180-250℃, roll 1
Wind it up to 3.

According to the present invention, a shading pattern in which colored granules of different colors are mixed in adjacent pattern areas at the boundaries of printed pattern areas can be obtained, and a decorative material with a natural and deep gradation pattern-like design can be obtained.

The second invention of the present application is a method for manufacturing a decorative material in which a plurality of printed pattern areas made of colored granules are continuously formed on a base material, and the printed pattern areas are continuously formed on the base material except for joint areas. Then, a shielding material is provided in a part that is in line with the joint part, and a brush is exposed between the shielding materials, and the brush is used to print the printed pattern area, so that a certain area centered around the boundary of the printed pattern area is formed. After mixing colored granules of a different color from adjacent printed pattern areas only in the width portion, colored granules are applied to the joint portions to form an aggregate of small unit patterns surrounded by the joint portions, and then blur. The gist thereof is a method for producing a decorative material characterized by obtaining a gradation pattern in which a pattern is formed.

The sectional view of the decorative material obtained by the second invention is shown in the third
As shown in the figure. 1 is a base material, and 22 is a joint portion. E is a small unit pattern surrounded by joint parts, and the decorative material of the present invention has various shapes of this pattern E.
It is a collection of The small unit pattern E includes a plurality of continuous pattern areas 14, 15,
16, 17, and colored granules 18, 17, respectively.
19, 20, and 21.

The printed pattern areas 14, 15, 16, 17 are continuously formed by colored granules 18, 19, 20, 21 of different colors using a flat bed stencil machine or a rotary screen machine. Colored granules 1
8, 19, 20, and 21 are thermoplastic synthetic resins such as polyvinyl chloride (PVC) with a mesh size of 10 to 60;
It is created by adding fillers, plasticizers, stabilizers, and pigments to PVC and then turning the sheet into pellets. The colored granules 18 cover the printed pattern area 14 with the same granules 19, 20, 2.
In No. 1, printed pattern areas 15, 16, and 17 are formed to have a thickness of 2 to 8 mm, but at the boundary of the pattern area, a portion of a certain width (approximately 1 to 3 mm) from the center of the boundary is adjacent to each other using a brush. Pattern area 14 and 15, 15
The grains 18', 19', 20', and 21' of different colors are mixed into the particles 16, 16, and 17, resulting in a blurred pattern.

FIG. 4 is a process diagram for manufacturing a decorative material according to the second invention of the present application.
60 meshes of colored granules such as PVC are deposited to continuously form printed pattern areas 14, 15, 16, and 17 with a thickness of 2 to 8 mm.

The printed pattern area of the obtained colored granules is continuously formed except for the joint areas. This sheet is then transferred to the wire mesh cylinder 24 and the guide rolls 26, 2.
6' and wrap it around the wire mesh cylinder 24.

The wire mesh cylinder 24 is provided with a shielding material 23 in a part that is in tune with the joint part, and the shielding material 23 masks the colored particles from entering the joint part to prevent the pattern from being distorted at the joint part. A brush 25 is provided between the shielding materials of the wire mesh cylinder 24, and the brushes are exposed from between the shielding materials, and by rotating the brush, the printed pattern area is brushed and the colored granules are divided into adjacent printed pattern areas. mixed with different colored granules.

The brush device 25 brushes a certain width (approximately 1 to 3 cm) from the center of the boundary of the pattern area with a brush to print the adjacent printed pattern areas 14 and 15, 15 and 1.
6, 16 and 17 are mixed with different colored granules. A rotating brush may be used. After the shielding material is removed, a joint portion 22 is formed by a printing device J that is synchronized with the joint pattern. Note that in the present invention, the shielding material and the brush may be provided on a flat stencil. Preferably, the brush contacts the entire thickness of the granulate.

Subsequently, the heater 27 and the press device 28,2
Heat and pressure mold at 8'. When applying pressure, it is desirable to use an embossing roll that is aligned with the joint area.

FIG. 5 is a partially enlarged view of the process of the present invention.

In particular, in the present invention, the sheet S is formed around the wire mesh cylinder 24 by guide rolls 26, 26'.
is wrapped around the joint, and the joint part is completely masked by the shielding material 23. At the same time, colored particles are printed by a brush device installed between the shielding materials, so that a blurred pattern is created without any influence on the joint part. You can get it.

(Effects of the Invention) A blurred pattern in which colored granules of different colors are mixed in mutually adjacent printed pattern areas is obtained, and a decorative material with a natural and deep gradation pattern-like design is obtained.

Further, according to the present invention, a blurred pattern can be obtained in the small unit pattern surrounded by the joint parts without the joint parts losing their shape, and a decorative material with a deeper gradation pattern-like design can be obtained.

Examples are shown below.

Example 1 PVC 100 parts by weight Calcium carbonate 150 〃 Plasticizer 48 〃 Stabilizer 2 〃 Pigment Appropriate amount Approximately 4 mm of colored granules of the above composition were placed on the base material from inside the stencil device, which was sealed except for the pattern openings.
Spread in thickness. There were four stencil devices, each spraying different colored granules. The resulting granule pattern is then brushed to mix the granules at the pattern boundaries. The obtained granular sheet is
The mixture was heated at 200°C for 4 minutes and pressed using a roll press to obtain a decorative material with a shading pattern about 2 mm thick.

Example 2 Using colored granules having the same composition as in Example 1, a continuous pattern of the granules was obtained using three stencil devices except for the joint pattern portions. This continuous pattern sheet is attached to the joint area by exposing the brush of the rotating brush provided inside from a part other than the shielding material device of a wire mesh cylinder provided with a shielding material that matches the joint area, and wrapping the continuous pattern sheet around the wire mesh cylinder. After completely shielding and mixing the granules at the other pattern boundaries by rotating the brush, after forming the joint part of the colored granules with the same composition as above, it is heated and applied with an embossing roller. A sheet was created by pressing, and a decorative material with a shading pattern was obtained.

The obtained decorative material had clear joints and a blurred pattern surrounding the joints, giving it a high level of design.

[Brief explanation of drawings]

FIGS. 1 and 3 are sectional views of a decorative material obtained by the present invention, and FIGS. 2 and 4 are illustrations of its manufacturing process. FIG. 5 is a partially enlarged view of FIG. 4. 2, 3, 4, 5 and 18, 19, 20, 21
22 is a printed pattern area, 22 is a joint portion, 10 and 25 are brush devices, 23 is a shielding material, and 24 is a wire mesh cylinder.

Claims (1)

[Scope of Claims] 1. A method for manufacturing a decorative material in which a plurality of printed pattern areas of colored granules are continuously formed on a base material, and the printed pattern areas are molded under heat and pressure, wherein the printed pattern areas are brushed with a brush and adjacent to each other. A decorative material characterized in that colored granules of a different color from an adjacent printed pattern area are mixed only in a certain width area centered around the boundary of a printed pattern area to form a blurred pattern to obtain a gradation pattern. Production method. 2. A method for manufacturing a decorative material in which a plurality of printed pattern areas made of colored granules are continuously formed on a base material and then heated and pressure molded, in which a plurality of printed pattern areas are continuously formed on the base material excluding joint areas, and then A shielding material is provided in a part that is in line with the joint part, and a brush is exposed between the shielding materials, and the above-mentioned printed pattern area is printed with the brush, and only a certain width part centered on the boundary of the printed pattern area is used. After mixing colored granules of different colors in adjacent printed pattern areas, colored granules are added to the joint areas to form a collection of small unit patterns surrounded by the joint areas, and a blurred pattern is formed. A method for producing a decorative material characterized by obtaining a gradation pattern.