JPH07115455B2 - Method for producing decorative sheet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is used as a material for interior and interior materials for construction, vehicles, shoes, bags and other miscellaneous goods, and has a noble and prominent design and an excellent glitter effect. The present invention relates to a method for manufacturing a decorative sheet material that embodies the above.

[Conventional technology]

As a conventional method for embodying the glitter effect on the surface of a sheet-like material for construction, (1) a synthetic resin coating containing fine powder of an aluminum vapor-deposited thermoplastic resin film or fine powder of aluminum or other metal on a synthetic resin layer. A method is known in which it is formed by planar coating or (2) a metal vapor deposition film is laminated on the synthetic resin layer.

[Problems to be Solved by the Invention]

However, in the method (1), the coating powder containing the fine powder of the aluminum vapor-deposited thermoplastic resin film and the fine powder of metal is formed on the entire surface of the synthetic resin layer simply as a smooth skin layer. Powders and fine metal powders are completely embedded in the synthetic resin of the skin layer like pigments and are extremely fine powders. It is difficult to form a patterned design pattern having glitter.

Further, in the method of (2), since the metal vapor deposition film is formed as the skin layer, it has a glittering property, but it merely forms a metallic surface, and moreover, in the same manner as in (1), It has a drawback that it imparts a pattern-like design pattern having specific luster and lacks a design effect that is heavy and has nobleness.

The present invention does not have the above-mentioned various drawbacks, can express a three-dimensional and delicate glittering property, has a noble and profound design, and is a decorative sheet material capable of forming a coating in a pattern. The present invention provides a method for manufacturing the same.

[Means for Solving the Problems]

The present invention, a non-foamed or foamed thermoplastic resin sheet is laminated on a noble material as an intermediate layer, and further, on the upper surface of the thermoplastic resin sheet, a strip of aluminum-deposited thermoplastic resin film 100 to 300μ is mixed. Polyvinyl chloride resin paint with a viscosity of 5,000 to 30,000 cp was used with a hole diameter of 250 to 840 μ
20 mesh), a method for producing a decorative sheet-like article in which a fine-grained convex pattern is applied using a screen having a thickness of 90 to 150 μ.

[Action, effect]

 The manufacturing method of the present invention will be described in detail below.

As the base material used in the present invention, paper, flame-retardant paper, woven cloth, knitted cloth, non-woven cloth, glass cloth, a single plastic sheet, or a laminate of two or more of these is used.

Next, a non-foamed body or a foamed body of a thermoplastic resin is laminated and formed as a sheet on the above-mentioned base material as an intermediate layer. Examples of the thermoplastic synthetic resin used for the thermoplastic resin sheet include polyvinyl chloride, polyvinyl acetate, polyurethane, polyamide, polyethylene, polypropylene, polystyrene, and other generally used thermoplastic synthetic resins, or a mixture thereof. Of a copolymer of

When the thermoplastic resin sheet is a non-foamed material, a plasticizer, a stabilizer, a lubricant, a chelator, a coloring agent such as a dye or a pigment, a flame retardant, and a filler may be appropriately mixed if necessary. . When the thermoplastic resin sheet is a foam, a chemical foaming agent is mixed in the non-foam composition.

As a method for forming the thermoplastic resin sheet, a non-foamed body, any of the foamed bodies can be laminated on a base material by using various methods such as a calendering method, an extrusion method or a coating method. From the viewpoint of production cost, the calendar method is preferable.

When the thermoplastic resin sheet is a foam, the thermoplastic resin sheet is laminated on the base material, and then the laminate is heated and foamed using a foaming furnace. As for the heating temperature in the foaming furnace, foaming is performed using a temperature which is equal to or higher than the decomposition temperature of the mixed foaming agent. In addition, for both the non-foamed body and the foamed body, a non-foamed sheet or a foamed sheet of a thermoplastic resin sheet may be separately manufactured and laminated on a base material to be integrated with the base material.

The surface of the thermoplastic resin sheet may be used as it is when it is formed, or it may be embossed to form an uneven pattern. Further, a print pattern may be further formed on the smooth surface or the concavo-convex pattern surface by using a print printer. By doing so, in addition to the three-dimensional glittering effect of the fine-grained convex pattern provided on the surface as described later, more complicated and various design effects can be imparted.

Next, on the surface of the thermoplastic resin sheet, a polyvinyl chloride resin coating (hereinafter referred to as a screen coating paste coating) in which a strip of an aluminum vapor deposited thermoplastic resin film (hereinafter abbreviated as an aluminum vapor strip) is mixed by screen processing. ) Is formed into a fine-grained convex pattern.

The aluminum vapor-deposited strips are polyethylene, polyvinyl chloride, polyacryl, a thermoplastic synthetic resin containing no plasticizer such as polyester alone or a film having a thickness of about 10 to 200 μm made of a copolymer or a mixture of these, and aluminum. A vapor-deposited film obtained by vapor-depositing or coating with a paint containing a transparent pigment excellent in heat resistance and weather resistance and coloring it to form an aluminum vapor-deposited film 10
Use pieces cut into small pieces of 0 to 300μ in size.

If the size of the strip is less than 100μ, it is not possible to express the glitter of a fine-grained convex pattern, and if it exceeds 300μ, the glitter can be expressed, but it is difficult to pass through the screen hole, and a polyvinyl chloride-based material is used. Mixing with the resin paint becomes incomplete, which is not preferable.

Further, the polyvinyl chloride-based synthetic resin used in the paste paste for screen processing is an emulsion polymer of polyvinyl chloride, a plasticizer in the emulsion polymer of polyvinyl chloride and polyvinyl acetate or polyvinyl chloride and polyacryl, Stabilizers, kerators and other dyes, transparent pigments, etc., if necessary, are mixed to form a paste coating. The non-colored and colored aluminum vapor-deposited strips are added to the polyvinyl chloride resin 10.
Mixing 1 to 10 parts by weight with 0 parts by weight, viscosity about 5000 to 30000
It is a paint having cp.

If the viscosity of the paste paint for screen processing is less than 5000 cp, the viscosity is too low and the fluidity becomes excessive, making it difficult to maintain the shape of the fine-grained convex pattern after screen processing.
When it exceeds, the viscosity is too high, so that the paint cannot be applied from the screen hole, the screen processing is impossible, and the fine particle convex shape cannot be formed. If the amount of aluminum vapor-deposited strips is less than 1 part by weight, it is not sufficient to exhibit glitter.
Further, when the amount exceeds 10 parts by weight, the amount of the mixture is too large and the coating becomes dry and has no fluidity.
10 parts by weight.

The fine-grained convex pattern is formed by screen-processing the screen coating paste paint. The screen processing is applied by using a lithographic processing method or a rotary processing method having a screen having a mesh size of 20 to 60 mesh and a thickness of 90 to 150μ, and then softening the polyvinyl chloride synthetic resin of the paste paint for the screen processing. Heat at temperature. If the screen mesh is less than 20 mesh, it becomes difficult to form a delicate pattern having glitter, and if it exceeds 60 mesh, the aluminum vapor-deposited pieces are difficult to pass through the mesh. If the thickness of the screen is less than 90μ, the convexity is small, so three-dimensional diffuse reflection is poor, and if it exceeds 150μ, it is difficult to form a fine-grained convex pattern.

FIG. 1 shows a decorative sheet material obtained by the method of the present invention. In the decorative sheet material 1, a thermoplastic resin sheet 3 as an intermediate layer is laminated on the surface of a base material 2. And
Further, on the surface of the thermoplastic resin sheet 3, a fine grain convex pattern 4 is formed.
Are formed. In this case, the fine-grained convex pattern 4 can also be formed in a pattern.

The fine-grained convex pattern 4 is formed on the surface of the thermoplastic resin sheet 3 as a pattern of many fine irregularities, and
Since the fine grained convex pattern 4 contains the aluminum vapor deposition strips 5, the aluminum vapor deposition strips 5 exhibit a three-dimensional and delicate glittering property due to diffused reflection, and have a conventional planar glittering property. In comparison, it can be visually recognized as having a heavy and noble design, and can be used as a decorative sheet material having an excellent decorative effect as an interior material and other materials.

As described above in detail, the present invention forms a fine-grained convex pattern of a paste coating for screen processing mixed with aluminum vapor-deposited fine particles on the surface of a thermoplastic resin sheet as an intermediate layer. Since the glittering effect of aluminum vapor-deposited strips mixed in the convex pattern and the effect of the fine-grained convex pattern are synergized and a three-dimensional and delicate glittering property can be expressed, a solid and noble design is provided. Thus, it is possible to produce a sheet-like material having an excellent decorative effect as a material for interior materials for guides and the like.

In addition, if a printed pattern is formed on the smooth surface of the thermoplastic resin sheet before forming the fine-grained convex pattern directly or after forming the concavo-convex stop pattern, the three-dimensional and fine glitter of aluminum vapor-deposited strips can be obtained. In addition to the property, the effect of the concavo-convex drawing pattern and the effect of the printed pattern are synergistic with each other, and a product with a high added value that is more excellent in the design effect can be obtained.

〔Example〕

 The present invention will be specifically described below with reference to examples.

Example 1 A flame-retardant paper for wallpaper backing was used as a base material, and a vinyl chloride resin composition having the following composition was used as an intermediate layer to form a beige colored layer having a thickness of 0.17 mm by a calendar method.
Next, a paste for screen processing having the following composition (a viscosity of about 10,000 cp) is applied on the layer using a rotary screen machine having a hole diameter of 420μ (sieve mesh 40 mesh) and a thickness of about 100μ. Then, the coated product was heated at 180 ° C. for 30 seconds using a heating furnace to gel and obtain a decorative sheet. The obtained product was a product excellent in a three-dimensional and fine glittering property, a solid and noble design property, as an interior wall material for a building.

[Composition composition of vinyl chloride resin as intermediate layer]

Vinyl chloride resin (= 1100; suspension polymerization resin) 100 parts by weight DOP 60 〃 Ca-Ba-Zn stabilizer 2 〃 Titanium white pigment 17 〃 Benzidine yellow pigment 2 〃 Calcium carbonate 30 〃 Antimony trioxide 5 〃 Kerator 2 〃 [Composition composition of paste coating for screen processing] Vinyl chloride resin (= 1250; emulsion polymerized resin) 100 parts by weight DOP 40〃 Chlorinated paraffin 5〃 Ca-Ba-Zn liquid stabilizer 2〃 Aluminum vapor-deposited polyethylene film strip (thickness 12μ , The size of the strips 200 μ) 3 〃 Comparative Example 1 The same material as the intermediate layer was laminated on the same substrate as in Example 1, and commercially available aluminum metal fine powder was used instead of aluminum vapor deposition strips on the surface. A sheet-like material was obtained in the same manner as in Example 1. The obtained product had extremely low glitter effect.

Example 2 A polyester non-woven fabric having a date of 90 g / m ² was used as a base material, the same material as in Example 1 was laminated as an intermediate layer thereon in the same manner as in Example 1, and the surface of the layer was textured using a roll embossing machine. After forming the concavo-convex pattern, the same screen processing paste paint as in Example 1 was applied in the same manner as in Example 1 and heat-gelled to obtain a decorative sheet. The product obtained is
The three-dimensional and delicate glittering effect was synergized with the texture-like uneven squeezing pattern, and the product was heavier than the product of Example 1 and was a high value-added product rich in nobility.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an example of the decorative sheet material obtained by the present invention. 1: Decorative sheet material, 2: base material, 3: thermoplastic resin sheet, 4:
Fine grain convex pattern, 5: Aluminum vapor deposition strip.

Claims (2)

[Claims] 1. A non-foamed or foamed thermoplastic resin sheet is laminated as an intermediate layer on a base material, and a strip of an aluminum vapor-deposited thermoplastic resin film of 100 to 300 μ is further provided on the upper surface of the thermoplastic resin sheet. Viscosity mixed with 5000 ~ 30000cp
Polyvinyl chloride resin paint from
60 to 20 mesh) and 90 to 150 μ in thickness, and a fine grained convex pattern is applied thereto to produce a decorative sheet material. 2. The method for producing a decorative sheet according to claim 1, wherein an uneven drawn pattern is formed on the surface of the thermoplastic resin sheet as the intermediate layer.