JPH08199029A - Sheet - Google Patents

Abstract

PURPOSE: To inexpensively obtain a marble-like decorative sheet having a natural appearance by mixing a vinyl chloride resin with a ground artificial marble flock based on a methyl methacrylate resin. CONSTITUTION: 100 pts.wt. vinyl chloride resin is mixed with 20-100 pts.wt. ground artificial marble flock (B) based on a methyl methacrylate resin, and the mixture is calendered to make a decorative vinyl chloride sheet. By using a mixture of 100 pts.wt. methyl methacrylate with 50-300 pts.wt., particularly above 200 pts.wt., aluminum hydroxide as component B, an antistatic surface material of a flooring can be obtained. By using scrap artificial marble as component B, a decorative sheet which is inexpensive and can be dispensed with gravure printing can be obtained. It is desirable to attain a sharp decorative effect associated with the printing sheet laminated as the underlayer by heightening the transparency as much as possible without mixing a filler other than component B in the production of the decorative sheet.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cosmetic material, and more particularly to a cosmetic material having a more realistic natural stone-like texture in a makeup board using a vinyl chloride resin sheet obtained by gravure printing as a surface material.

[0002]

2. Description of the Related Art Conventionally, as a decorative material such as a wood-based decorative board and a vinyl chloride floor material, a decorative material in which a natural stone pattern such as granite or marble is expressed by gravure printing on a vinyl chloride film is generally used. It is popular. This is because the vinyl chloride film has the following features.

Since various pigments and fillers can be easily mixed, a variety of color films having high hiding power can be obtained. A film with a desired hardness can be obtained depending on the amount of the plasticizer mixed in, so the workability for small-scale winding is excellent. Excellent printability. Excellent flame retardancy. It is cheap.

Due to these characteristics, the vinyl chloride film has come into widespread use as a decorative surface material for building materials such as various board floor materials, and as a decorative surface material for furniture, home appliances and the like.

[0005]

However, as the consumer market has matured in recent years, the aesthetic appeal of consumers has risen, and the genuine intention has become stronger. Therefore, not only general construction materials but also furniture, home appliances, etc. As for the surface material, products with a texture closer to the real thing have been demanded.

[0006] However, the decorative film made of vinyl chloride has the excellent characteristics that it is inexpensive and has excellent characteristics as described above, but since it shows a pattern of natural granite, marble, etc. by printing, it naturally feels natural. It had the drawback of being chipped. Therefore, it has become a problem in the industry to supply a natural stone tone makeup sheet at a low cost while making the most of the characteristics of the vinyl chloride makeup film.

The present invention has been made to solve the above problems, and an object thereof is to make a natural stone-like makeup sheet having a natural feeling inexpensively while making the most of the characteristics of a vinyl chloride makeup film. To supply.

[0008]

[Means for Solving the Problems]

(1) In order to solve the above problems, as a first means, an attempt was made to mix crushed flocs of natural stone with vinyl chloride resin to form a sheet, and to use this mixed sheet as a cosmetic material.

As a result, a material having a feeling of nature very similar to natural stone was obtained. However, since the vinyl chloride resin and the natural stone have no chemical affinity, the pulverized flocs of the vinyl chloride resin and the natural stone are not bound to each other, and the sheets are formed in a state of being separated from each other.

Therefore, when this decorative sheet was used as a surface material, it was found that it was difficult to commercialize it because the natural stone flocs would be exfoliated when the surface was rubbed.

(2) In order to solve this problem and create a natural stone-like makeup sheet with a natural feel, the present inventor has
As a result of diligent studies, as a second means, attention was paid to mixing crushed flocs of acrylic artificial marble.

That is, the acrylic resin has a good affinity with the vinyl chloride resin, and like the vinyl chloride resin, is easily attacked by the plasticizer. Therefore, if vinyl chloride resin and crushed flocs of acrylic artificial marble are mixed and the plasticizer is extracted and kneaded, the acrylic resin is chemically bonded to the vinyl chloride resin through the plasticizer, so It is possible to obtain a sheet that does not exfoliate.

Further, since acrylic-based artificial marble is mainly used as a top plate of a system kitchen, a top plate of a vanity, etc., a large amount of end material is generated during processing. If crushed flocs are created by using this scrap material, the cost will be extremely low, and it will be possible to solve the problem of supplying the natural stone-like makeup sheet at a low cost, which is the original purpose. Is possible.

Further, in selecting the acrylic artificial marble, if a relatively large amount (200 to 300 parts) of aluminum hydroxide is used as a filler, an antistatic effect can be obtained. There was found.

[0015]

As described above, according to the present invention, the conventional printing sheet
Natural stone tone makeup with a realistic texture that could not be obtained with
Was provided.

As a result, the present invention has the following effects. (1) It is possible to obtain a natural stone-like makeup sheet having various characteristics such as flame retardancy similar to that of a conventional vinyl chloride resin makeup sheet, and having a natural feeling. Further, a homogeneous sheet can be obtained in which the mixed flocs are not exfoliated.

(2) An inexpensive makeup sheet can be obtained because gravure printing for producing a natural stone tone pattern effect is not necessary and the end material of artificial marble is used.

(3) It is not necessary to treat the end material of the artificial marble as a waste, and there is an advantage in environmental measures.

(4) It is possible to provide an antistatic floor material by using a decorative sheet prepared by mixing pulverized flocs of artificial marble containing aluminum hydroxide as a surface layer of a floor material or the like. .

[0020]

EXAMPLES Examples of the present invention will be described in detail below. FIG. 1 is a sectional view of the present invention, and FIG. 2 is a plan view.

(1) Preparation of Fractured Artificial Marble Floc a First, granite-like acrylic artificial marble (MRC /
About 100 kg of mill ends (manufactured by DuPont) is prepared and crushed by a crusher (18 mesh) to prepare artificial marble crushed flocs a having a particle size of 50 μm to 400 μm.

(2) Preparation of mixed sheet A Next, a mixed compound having the following composition is prepared.

(Compounding) PVC resin 100 parts DOP 30 parts Stabilizer 5 parts Artificial marble flock (a) 70 parts

The above-mentioned mixing compound was put into a kneading machine,
Kneading for about 3 minutes under the condition of 160 ° C ± 10 ° C, rolling with a calender and cooling to 0.4mm thickness and 1100m width.
A mixed sheet A of m is prepared.

When preparing the mixed sheet A, it is desirable to finish the sheet to be relatively clear.

This is because when the decorative sheet is prepared by laminating a colored sheet or a printing sheet on the lower layer of the mixed sheet A in the next doubling step, the transparency of the mixed sheet is high. This is because a sharper design effect can be obtained.

Therefore, when blending the mixed compound, it is desirable that no filler other than the artificial marble crushing floc a is mixed. Further, by changing the mixing amount of the artificial marble crushed floc a, a makeup sheet having various textures can be obtained.

Furthermore, if a crushed floc of artificial marble having a high mixing ratio of aluminum hydroxide is used, a mixed sheet having an antistatic effect can be obtained. Therefore, this mixed sheet is made of PVC (vinyl chloride). By using it for the surface layer of a floor material or the like, it becomes possible to impart an antistatic function in addition to the natural design effect.

(3) Preparation of Natural Stone-Like Cosmetic Sheet C Next, the above-mentioned mixed sheet A was used as the upper layer and the lower layer had a thickness of 0.
A 1 mm beige-based colored vinyl chloride film B is laminated and heat-laminated to prepare a natural stone tone makeup sheet C.

When making a decorative sheet C, if a printing film of granite or the like is used instead of the colored vinyl chloride film B of the lower layer, an artificial marble crushed floc a of the upper layer and a granite-like pattern of the lower layer are obtained. By overlapping, it is possible to obtain a makeup sheet with a texture very close to that of natural granite.

Further, by changing the color of the colored vinyl chloride film B of the lower layer, a natural stone tone makeup sheet having various shades can be obtained.

[0032]

As described above, the decorative sheet made of vinyl chloride resin prepared by mixing the crushed flocs of the acrylic artificial marble does not exfoliate the crushed flocs, and the design effect of the texture very similar to natural stone is obtained. It turned out to be.

Furthermore, the cosmetic sheet made by mixing the crushed flocs of acrylic artificial marble containing a relatively large amount of aluminum hydroxide also has an antistatic effect.

[0034]

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a plan view showing an embodiment of the present invention.

[Explanation of symbols]

 A Mixed sheet B Vinyl chloride film C Decorative sheet a Artificial marble crushed flock

[Procedure amendment]

[Submission date] April 10, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0018

[Correction method] Change

[Correction content]

(3) Further, a PVC-based gravure printing sheet
This formulation can be combined with
This gives you a makeup board with a variety of design effects with a natural appearance.
It is. (4) Furthermore, the table of the decorative board of the above (2) and (3).
PVC surface clear with a thickness of 0.3 mm to 1.0 mm
Laminate the sheets and apply acrylic UV coating on the outermost layer.
By doing so, a deep mirrored decorative board can also be obtained.
The mirror surface makeup board created in this way is used in the unit bath.
When used for wall panels or wall panels in toilet booths,
You can also obtain a high-quality texture that can be replaced with natural stone board
found. ( 5 ) It is not necessary to treat the end material of the artificial marble as a waste material, which is advantageous in terms of environmental measures.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0019

[Correction method] Change

[Correction content]

( 6 ) By using a decorative sheet prepared by mixing pulverized flocs of artificial marble containing aluminum hydroxide as a surface layer of a floor material or the like, it is possible to provide an antistatic floor material.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display area E04F 15/10 104 8702-2E 15/16 A 8702-2E

Claims (2)

[Claims] 1. 20 parts of artificial marble crushed flocs having a particle size of 20 μm to 500 μm, which is prepared by using methyl methacrylate resin as a main component, per 100 parts by weight of vinyl chloride resin.
A sheet material made of vinyl chloride resin, characterized in that it is prepared by mixing up to 100 parts by weight. 2. The artificial marble crushed floc is prepared by mixing 50 parts by weight to 300 parts by weight of aluminum hydroxide with 100 parts by weight of methyl methacrylate resin as a constituent of the artificial marble crushed floc. Item 2. A sheet material made of a vinyl chloride resin according to item 1.