JPH08192502A - Color flopping vinyl chloride resin sheet and leather - Google Patents

Abstract

PURPOSE: To easily and permanently develop a brightening feeling and a hue change by laminating a dark color translucent soft vinyl chloride resin layer containing color flopping pigment particles on a dark color opaque soft vinyl chloride resin layer. CONSTITUTION: A color flopping vinyl chloride resin sheet is formed by laminating a dark color translucent soft vinyl chloride resin layer containing color flopping pigment particles on a dark color opaque soft vinyl chloride resin layer. Further, color flopping vinyl chloride resin leather is formed by laminating the dark color translucent soft vinyl chloride resin layer containing color flopping pigment particles, the dark color opaque soft vinyl chloride resin layer and base cloth in this order. The color flopping pigment particles have a property changing in brightening feeling or hue according to a looking angle and prepared by coating inorg. particles composed of aluminum, stainless steel, mica or a shell with iron oxide or titanium oxide by vapor deposition or plating.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vinyl chloride sheet and a vinyl chloride leather having a color flop property (a property in which a feeling of brightness and a hue change depending on a viewing angle), shoes,
Used for bags, bags, furniture, stationery, wall coverings, interior materials for vehicles, etc.

[0002]

2. Description of the Related Art Conventionally, as a method of imparting a glittering feeling to a vinyl chloride sheet and a vinyl chloride leather, a transparent soft vinyl chloride resin layer is coated with a colored paint on a polyester film vapor deposition product called glitter, and fine pieces are added to the film. It was However, this method has a drawback in that due to the influence of the plasticizer added to the vinyl chloride resin layer, the glittering feeling does not last and becomes dull. Although a method of adding glass beads or glass beads obtained by vacuum-depositing aluminum to the transparent soft vinyl chloride resin layer has been carried out, it was difficult to uniformly disperse the glass beads by this method.

Further, a decorative sheet having a rich metallic luster by adding glossy powder to the soft vinyl chloride resin layer (Japanese Patent Publication No. 6-
No. 86107) is known, which has a metallic luster due to the presence of the (meth) acrylic compound.

In all of the conventional methods, only a glitter or metallic luster is imparted to a vinyl chloride sheet and vinyl chloride leather, and a method for imparting a hue change at the same time has not been known yet. Further, the soft vinyl chloride resin layer is only one layer and is not colored dark.

[0005]

DISCLOSURE OF THE INVENTION The present invention has been made as a result of intensive studies to impart a brilliance feeling and a hue change at the same time, and as a result, specific pigment particles having a color flop property and two different soft layers of dark colors have been obtained. The present invention has been completed by finding that a sufficient color flop effect is easily and permanently exhibited in the obtained vinyl chloride sheet and vinyl chloride leather only in combination with the vinyl chloride resin layer.

[0006]

A first object of the present invention is to provide a color flop vinyl chloride sheet, in which a dark semitransparent soft vinyl chloride resin layer containing color flop pigment particles is formed.
It is characterized by being laminated on a dark opaque soft vinyl chloride resin layer.

A second aspect of the present invention is that a color flop vinyl chloride leather comprises a dark color semi-transparent soft vinyl chloride resin layer containing color flop pigment particles, a dark opaque soft vinyl chloride resin layer, and a base cloth in this order. It is characterized by being laminated.

The color flop pigment particle in the present invention means a pigment particle having a property that the luster and hue change depending on the viewing angle. For example, inorganic particles such as aluminum, stainless steel, mica, shells, etc. Titanium or the like is coated by vapor deposition, plating, etc., and the same or different multi-layer coating may be applied. Particularly, aluminum particles coated with iron oxide are preferable. The amount added to 100 parts by weight of the vinyl chloride resin is usually 0.05 to 1 part by weight, preferably 0.1 to 0.5 part by weight. If the amount added is less than 0.05 parts by weight, the color flop effect is insufficient, and if it exceeds 1 part by weight, the desired hue cannot be obtained.

The vinyl chloride resin in the dark-colored semi-transparent soft vinyl chloride resin layer (hereinafter referred to as A layer) is not limited to vinyl chloride resin, but may be a copolymer with ethylene, vinyl acetate, vinyl ether, maleic acid ester or the like. Shall be included.

As the plasticizer, phthalic acid ester type, aliphatic dibasic acid ester type, trimellitic acid ester type,
Phosphate ester type, polyester type, epoxy type and the like are used. The amount added to 100 parts by weight of vinyl chloride resin is usually 60 to 120 parts by weight, preferably 75 to 90 parts by weight.
Parts by weight.

In order to impart deep-colored translucency, dark-colored pigments such as black, navy blue, blue, green, brown and red are usually added in an amount of 0.1 to 2 parts by weight per 100 parts by weight of the vinyl chloride resin. It is preferably carried out by adding 0.5 to 1 part by weight.

The vinyl chloride resin and plasticizer in the dark opaque soft vinyl chloride resin layer (hereinafter referred to as B layer) are
The same as in layer A. In order to impart dark opacity, dark pigments such as black, navy blue, blue, green, brown, and red are usually added to 100 parts by weight of vinyl chloride resin.
It is carried out by adding 0 to 40 parts by weight, preferably 20 to 30 parts by weight. As the dark color pigment, a black pigment is particularly desirable. In order to impart cushioning properties, embossing properties, etc., a blowing agent and a foaming aid such as a nitroso type, a sulfohydrazide type or an azo type may be added to the vinyl chloride resin of the layer B.

If necessary, stabilizers, ultraviolet absorbers, flame retardants, fillers, antistatic agents, lubricants, etc. may be added to the vinyl chloride resins of the A layer and the B layer. A layer and B
In at least one of the layers, white instead of dark coloring,
In the case of only the light-colored beige, light gray, or the like, or the dark-colored semi-transparent A layer, even if the color-flop pigment particles are contained in the A layer, it is sufficient for the obtained vinyl chloride sheet and vinyl chloride leather. No color flop effect is exhibited.

The thickness of layer A is usually 0.1 to 1 mm, preferably 0.3 to 0.5 mm, and the thickness of layer B is usually 0.2 to 2 mm, preferably 0.5 to 1 mm. As a sheet forming method, a calendar method, an extrusion method, or the like can be adopted, but the calendar method is particularly preferable.

The base fabric in the vinyl chloride leather of the present invention is not particularly limited, but includes woven fabrics, knitted fabrics, and non-woven fabrics made of various fibers such as cotton, rayon, polyester, nylon, vinylon, and polypropylene alone or mixed.

By embossing or surface-treating the surface of the A layer in the present invention with an acrylic resin, a urethane resin or the like, it is possible to improve the design and the slip resistance and blocking resistance.

[0017]

Example 1 Layer B consisting of the following resin composition B was laminated on an under-coated rayon 1/2 twill fabric to a thickness of 0.55 mm using an inverted L-shaped four-roll calender. did. Resin composition B Vinyl chloride resin (Nikavir SG1300, Central PVC sales) 100 parts by weight Phthalate ester plasticizer (DOP, Toho Rika Kogyo) 75 〃 Black pigment (173 black, Dainichiseika) 25〃 Calcium carbonate filler (Escalon) 200, Sankyo milling) 10 〃 Azo foaming agent (Uniform AZH8P, Otsuka Chemical) 7.6 〃 Ba / Zn stabilizer (NO. 3784, Akishima Chemical Co., Ltd.) 3 〃 Epoxy soybean oil stabilizing aid (DE8, Daikyo) Kasei Kogyo Co., Ltd. 1 〃 Acrylic Stabilizing Aid (PF56, one-sided oil and fat industry) 0.8

An A layer containing color flop pigment particles of the following resin composition A was laminated on the B layer with a thickness of 0.40 mm using an inverted L type four roll calender. Then, after foaming treatment at 205 ° C. for 3 minutes, gloss embossing was performed under a roll pressure of 3 kg / m ² to obtain a vinyl chloride leather excellent in color flop property and design. Resin composition A Vinyl chloride resin (Nikavir SG1300, Central PVC sales) 100 parts by weight Phthalates plasticizer (DOP, Toho Rika Kogyo) 90〃 Mixed pigment (7644 Blue: 5684 Green = 0.7: 0.5, Toyo) Ink production) 1.2〃 Color flop pigment particles (L2000 pearl, BASF) 0.1〃 Phosphate ester stabilizer (CX2000, Daikyo Kasei Kogyo) 1〃 Ba / Zn stabilizer (MW660, Daikyo Kasei) Industry) 1 〃 Epoxy soybean oil stabilizing aid (DE8, Daikyo Kasei) 2 〃

[0019]

Example 2 A polyester taffeta that has been subjected to a mold release treatment,
Layer B made of the resin composition B of Example 1 was laminated with a thickness of 0.45 mm using an inverted L-shaped four roll calender.
On the B layer, an A layer containing color flop pigment particles composed of the resin composition A of Example 1 was laminated with a thickness of 0.20 mm by using an inverted L type four roll calender.
Then, after performing foaming treatment at 205 ° C. for 3 minutes, embossing of leather squeeze and surface treatment with acrylic resin, the polyester taffeta was peeled off, and a vinyl chloride sheet excellent in color flop property and design was obtained.

[0020]

COMPARATIVE EXAMPLE A vinyl chloride leather was obtained by the same procedure as in Example 1 except that the black pigment in the resin composition B of Example 1 was replaced with 20 parts by weight of white pigment (GB437, Hihiro Bigs). No satisfactory color flop effect was developed.

[0021]

INDUSTRIAL APPLICABILITY In a PVC sheet and PVC leather,
Pigment particles having color flop properties (the property that the luster and hue change depending on the viewing angle) are added to the dark semitransparent soft vinyl chloride resin layer, and this layer is placed on the dark opaque soft vinyl chloride resin layer. By stacking the layers, it is possible to easily and permanently exhibit a glitter feeling and a hue change.

Claims (2)

[Claims] 1. A color flop salt characterized in that a dark color semi-transparent soft vinyl chloride resin layer containing color flop pigment particles is laminated on a dark color opaque soft vinyl chloride resin layer. Bisheet. 2. A color-flop property, characterized in that a dark-colored semi-transparent soft vinyl chloride resin layer containing color-flop pigment particles, a dark-colored opaque soft vinyl chloride resin layer, and a base fabric are laminated in this order. PVC leather.