JPH0679831A - Delustered decorative material and preparation thereof - Google Patents

Abstract

PURPOSE:To provide a texture and a luster being similar to a natural wood material and to improve scratch resistance of the surface protective layer by keeping the particle diameter and the most frequently appearing value of the particle diameter distribution of a pigment within a specified range when the surface protective layer is formed with a coating on a substrate. CONSTITUTION:A thin sheet for a construction material, a pulp board, a metal foil such as an aluminum foil, a plastic sheet such as polypropylene, a wood plywood are used as a substrate 2. A surface protective layer 6 prepd. with a coating contg. a bead pigment 4 is provided on this substrate 2 to obtain a matte decorative material 1. In addition, the surface protective layer 6 is formed by applying a coating wherein the bead pigment with the particle diameter within 1-40mu in this surface protective layer 6 is used and the most frequently appearing value of this particle diameter distribution is within the range of 5-15mu by means of a gravure cylinder with the depth of the recessed part of 45-240mu.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a matte decorative material used as a surface decorative material for interiors of buildings, furniture and cabinets of various home electric appliances, and a method for producing the same.

[0002]

2. Description of the Related Art As a matte decorative material used as an interior material of a building or a surface decorative material of furniture, (1) after a pattern printing layer is formed on a thin paper, the surface on which the pattern printing layer is formed. A surface protective layer formed of a urethane resin containing a matting agent, and (2) a plastic sheet having a pattern print layer, on which an embossed pattern that matches the pattern print layer is formed, and a colored paint is further applied to the embossed recesses. Filled products are used.

[0003]

In the above-mentioned cosmetic material (1), the matting agent such as microsilica expresses a gloss matte feel, but the surface protective layer cannot wipe out the plastic feel. It is not possible to express the texture and luster of a decorative material made of natural wood. That is, in order to obtain a high matting effect, the amount of the matting agent in the surface protective layer has to be increased, but the adhesion of the matting agent in the surface resin layer is weak, so that the scratch resistance of the surface protective layer is reduced. Becomes insufficient. Therefore, the content of the matting agent in the surface resin layer has its own limit, and from this point, it is not possible to exhibit a sufficient matting effect, and to express the texture and luster that the decorative material made of natural wood has. I can't.

The appearance of the item (2) is similar to that of a decorative material made of natural wood, but the luster of the decorative material made of natural wood cannot be expressed, and the tactile sensation of the decorative material made of natural wood. It has the drawback of being far from the touch.

On the other hand, the present invention uses a coating material containing a bead pigment, which has been conventionally used exclusively to bring out a suede-like appearance, thereby providing the same texture and luster as a decorative material made of natural wood. And a matte decorative material having good scratch resistance in the surface protective layer, and a method for producing the same.

[0006]

The invention according to claim 1 has a surface protective layer made of a coating material containing a bead pigment on a substrate, wherein the particle diameter of the bead pigment in the surface protective layer is 1 to 40 μm. And the most frequent value of the particle size distribution is in the range of 5 to 15 μ.

According to a second aspect of the present invention, in the structure of the matte decorative material according to the first aspect of the present invention, a matte pattern layer having a wood grain pattern layer is provided between the base material and the surface protective layer made of a paint containing a bead pigment. Made of cosmetic material.

According to a third aspect of the present invention, in the matte decorative material according to the first or second aspect of the present invention, the surface protective layer is provided with irregularities that represent irregularities on the surface of the wood grain board such as wood grain conduit grooves. It is made of matte decorative material.

According to a fourth aspect of the invention, the particle size is 1 on the substrate.
A coating containing a bead pigment in the range of ˜40 μ and the most frequent value of particle size distribution of 5˜15 μ is applied using a gravure cylinder having a recess depth of 45 to 240 μ. Thus, the method for producing a matte decorative material for forming a surface protective layer.

According to a fifth aspect of the present invention, the step of forming a wood grain pattern layer on the base material, and the grain size within the range of 1 to 40 μm on the formation surface of the wood grain pattern layer, and And a step of forming a surface protective layer by applying a coating material containing a bead pigment in a range of the most frequent particle size distribution of 5 to 15 μm by a gravure cylinder having a recess depth of 45 to 240 μm. It consists of a method for producing a matte decorative material.

In the matte decorative material of the present invention and the method for producing the same having the above-mentioned constitution, the basis weight of the decorative material is 1
About 4 to 150 g / m ² thin paper for building materials, high-quality paper, pulp board, paper such as synthetic paper, metal foil such as aluminum foil, polypropylene, acrylic resin, polyester with polyethylene terephthalate, polyvinyl chloride, ABS resin, etc. Plastic sheet, and further wood veneer, wood plywood, particle board, wood board such as MDF (medium density fiber board), iron board, galvanized steel sheet, polyvinyl chloride sol coated steel sheet, aluminum sheet, metal sheet such as copper sheet, etc. Is used. Particularly when the matte decorative material of the present invention does not have a pattern layer, the surface of the substrate is preferably colored in a color similar to that of a wood grain board. Also, in order to approximate the appearance of natural wood grain board, the surface of the base material is embossed to express a wood grain conduit groove, and the conduit groove is filled with brown or black ink by a known wiping method. May be used.

The vehicle in the coating material containing the bead pigment for forming the surface protective layer is appropriately selected depending on the material of the base material and the application of the decorative material, and examples thereof include polyvinyl chloride, polyvinyl acetate, cellulose resin and the like. The thermoplastic resins, cross-linking acrylic resins, urethane-modified cross-linking acrylic resins, and cross-linking resins such as cross-linking polyurethane resins containing acrylic polyol and isocyanate as main components can be used. From the viewpoint of the adhesion of the bead pigment, that is, the inability of the bead pigment to be retained in the surface protective layer, a two-component curable urethane resin or acrylic resin is suitable as the vehicle, and the printability in forming the surface protective layer is also suitable. From the viewpoint of abrasion resistance of the surface protective layer and the like, for example, the molecular weight obtained by the reaction of the polyester and the isocyanate compound is 20
A urethane elastomer having a temperature of 000 to 40,000 and a T _g of -40 to -30 ° C is suitable.

The bead pigment in the surface protective layer is a fine powder of pigment or dye dispersed in a synthetic resin to form particles, such as Fe ₂ O ₃ , TiO ₂ , CaCO ₃ ,
Fine powders of pigments and dyes such as quinacridone are added to an elastic resin such as polyurethane, acrylic resin, epoxy resin, polyester, nylon, fluororesin, vinyl chloride-vinyl acetate copolymer, or if necessary. A plasticizer, a stabilizer, a surfactant and the like are added to disperse and granulate, and the particle size is in the range of 1 to 40 μ, and the most frequent value of the particle size distribution is 5 to 15 μ. Those within the range are selected and used. Since a matte that is very similar to the matte feel of the surface of a natural wood grain is obtained, the most frequent value of the particle size distribution is preferably in the range of 9 to 11μ, and the minimum particle size is 4μ and the maximum particle size. It is preferable to select and use a bead pigment having a diameter of 16 μ, more preferably a minimum particle size of 6 μ and a maximum particle size of 14 μ.

The coating material for forming the surface protective layer is preferably a dispersion of 5 to 300 parts by weight of the bead pigment in 100 parts by weight of the vehicle, from the viewpoints of dispersibility and fixing property of the bead pigment. It is preferable that 40 to 60 parts by weight of the bead pigment is dispersed in 100 parts by weight of the vehicle. A coloring pigment other than the bead pigment or an extender pigment may be added to the coating material containing the bead pigment, if necessary.

As a coating means for forming a surface protective layer of a coating material containing a bead pigment on a substrate, a printing means such as a gravure printing method, a roll coating method, a silk screen printing method or a coating means is used. Particularly, the gravure printing method is suitable, and it is usually formed to have a thickness of about 45 to 240 μm.

The surface protective layer can also be formed by a transfer method using a transfer sheet. That is, a transfer sheet obtained by forming a surface protective layer on the releasable substrate sheet by coating or printing, and then sequentially forming a wood grain pattern layer and an adhesive layer on the surface protective layer,
It may be formed by a so-called transfer printing method in which the releasable base material sheet of the transfer sheet is laminated on the base material so that the releasable base material sheet becomes the surface, and then only the releasable base material sheet is peeled off. . The peelable substrate sheet in this transfer sheet is, for example, a known release film such as a polyethylene terephthalate film or polypropylene film having a thickness of about 25 to 100 μm, and the adhesive layer is, for example, vinyl chloride-acetic acid. A heat-sensitive type such as a vinyl copolymer, an acrylic resin, or a rubber, a solvent-type activated type, or a pressure-sensitive type is used.

The wood grain pattern layer in the matte decorative material according to the second aspect of the present invention is the same as the printing ink for forming the pattern printing layer made of, for example, nitrocellulose, acrylic resin, vinyl chloride resin, alkyd resin or the like. It is formed by a colored ink that uses a vehicle. The colored ink forming the wood grain pattern layer may contain a bright pigment such as a pearl pigment or a metal powder, but the addition of a bead pigment must be avoided.

The wood grain pattern layer is, for example, a gravure,
By a normal printing means such as gravure offset, silk screen, handwriting, electrophotography, ink jet printing, etc., it is formed as a picture layer that reproduces the surface pattern of a wood grain board such as a Japanese zelkova, a cedar, and a cypress. By forming this wood grain pattern layer with an ink containing a bright pigment such as pearl ink, the luster, or "shining," peculiar to the wood grain is expressed, and the appearance more closely resembles that of a decorative plate made of natural wood. Will be obtained.

In the matte decorative material according to the invention of claim 3,
The unevenness expressing the unevenness of the wood grain board surface such as the wood grain conduit groove formed on the surface of the surface protective layer is, for example, by a normal heat embossing method or a casting method on the shaping sheet, for example, the surface of the wood grain board. It is formed as an unevenness that expresses conduit grooves, annual ring pattern unevenness, fine fiber texture unevenness, and the like.

As described above, the surface protective layer, the wood grain pattern layer, and the unevenness expressing the unevenness of the surface of the wood grain board are formed directly on the base material or directly on the surface protective layer. Alternatively, it may be formed by a transfer method. An outline of a process of forming a surface protective layer, a wood grain pattern layer, and unevenness expressing unevenness on the surface of a wood grain board by using a transfer method will be described below.

First, the surface made of a paint containing a bead pigment is formed on a peelable substrate sheet on which irregularities on the surface of a wood grain board such as wood grain conduit grooves and irregularities in which the irregularities are reversed are formed as necessary. A protective layer is formed, a wood grain pattern layer is formed on the surface protective layer if necessary, and a transfer sheet having an adhesive layer formed on the surface is prepared. Then, the adhesive layer surface of the transfer sheet and the base material of the decorative material are brought into contact with each other, the "transfer layer" is transferred to the base material surface by heating and pressing, and then the releasable base material sheet in the transfer sheet is peeled off. Thus, "a base material of a cosmetic material-an adhesive layer-a pattern layer having a wood grain pattern formed as necessary-a surface protective layer made of a paint containing a bead pigment-a wood grain conduit groove formed as necessary. It is possible to obtain a decorative material having a transfer layer composed of “unevenness and the like”.

When manufacturing a decorative material using this transfer method, the adhesive layer in the transfer sheet may be omitted when the adhesive layer is formed on the surface of the base material of the decorative material. . The adhesive layer can be formed of, for example, vinyl chloride-vinyl acetate copolymer, acrylic resin, rubber, thermoplastic resin such as polystyrene, phenol resin, polyurethane, thermosetting resin such as unsaturated polyester, or the like. .

[0023]

[Function] The matte decorative material of the present invention has a particle size of 1 on the substrate.
The surface protection layer is made of a paint containing a bead pigment having a particle size distribution most frequent value of 5 to 15 μm, and a luster of the surface of a natural wood grain board. And a touch feeling are excellently reproduced, and a good-quality decorative material having an excellent function in scratch resistance is also obtained.

The effect of satisfactorily reproducing the luster and touch of the surface of the wood grain board of the natural wood, which is produced by the matte decorative material of the present invention, is that the particle diameter of the bead pigment in the paint containing the bead pigment is 1 to 1 This is based on the selection and use of those having a particle size distribution within the range of 40 μm and the most frequent value of the particle size distribution within the range of 5 to 15 μm.

The good scratch resistance of the surface protective layer exhibited by the matte decorative material of the present invention is based on the use of bead pigments as the matting agent in the surface protective layer.

Further, in the method for producing a matte decorative material of the present invention, after forming a wood grain pattern layer on a base material, the grain size of the wood grain pattern layer is 1-40 μm. Within the range and the most frequent value of the particle size distribution is within the range of 5 to 15 μm, the coating material containing the bead pigment is used, and the depth of the recess is 45 to 2
It consists of forming a surface protective layer by coating with a 40μ gravure cylinder, which reproduces the luster and touch of the above-mentioned natural wood grain board satisfactorily and also has scratch resistance. It is possible to accurately obtain a high-quality cosmetic material that exhibits an excellent action.

[0027]

EXAMPLES The concrete constitution of the matte decorative material and the method for producing the same according to the present invention will be described below with reference to examples.

In "Example 1" [Fig. 1], a basis weight of 30
Color ink using a solid ink layer made of nitrocellulose-based printing ink and a nitrified cotton-based vehicle on a base material 2 consisting of g / m ² thin paper for building materials "Sanko Paper Co., Ltd .: Hiprint 30""The Inktech Co., Ltd .: MA"
And a wood grain pattern layer were sequentially formed, and a gravure printing layer indicated by reference numeral 3 was formed.

Subsequently, a coating "A" containing a bead pigment having the following composition is applied to the surface of the gravure printing layer 3 where the wood grain pattern layer is formed, by a gravure cylinder having a recess depth of 150 μm. By bead pigment 4
A surface protective layer 6 is formed by being fixed by a vehicle 5 to obtain a matte decorative material 1 which is an example of the present invention.

Paint “A” Bead pigment {Minimum particle size: 5 μ, Maximum particle size: 15 μ, Most frequent value of particle size distribution: 9 to 11 μ} 18 parts by weight Vehicle (acrylic polyol) 35 parts by weight Solvent (ethyl acetate / toluene) 45 parts by weight Slip agent (silicone) 2 parts by weight Hexamethylene diisocyanate 15 parts by weight "Example 2" A vinyl chloride-vinyl acetate copolymer was placed on a substrate made of a polyvinyl chloride resin sheet (plasticizer content of 20 parts by weight) having a thickness of 100 μm. Grafting a wood grain pattern with resin-based printing ink and then printing the wood grain pattern Utilizing the embossing machine of the known rotary type heat press method, the forming the embossed depressions representing the conduit groove shape in the plate material by natural wood.

Subsequently, an ink having a black-brown vinyl chloride-vinyl acetate copolymer resin as a vehicle is applied to the entire surface on which the embossed depressions are formed, and the applied surface is wiped with a doctor blade before it is dried. Then, the ink other than those adhering to the embossed recesses was scraped off to fill only the embossed recesses with the blackish brown ink.

Thereafter, the same paint as the paint "A" containing the bead pigment used in the above-mentioned Example 1 was applied to the wiping surface with a gravure cylinder having a recess depth of 150 μ. A surface protective layer formed by fixing bead pigments with a vehicle was formed to obtain a matte decorative material as another example of the present invention.

[0033]

[Effect] The matte decorative material of the present invention is capable of excellently reproducing the luster and texture of the surface of a wood grain board of natural wood, and has excellent scratch resistance. It is suitable for use as a surface decoration material for wood, furniture and home appliances, and has excellent practical effects.

Further, according to the method for producing a matte decorative material of the present invention, the decorative material having the above-mentioned characteristics can be accurately obtained.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing an enlarged surface protective layer portion of one embodiment of a matte decorative material of the present invention.

[Explanation of symbols]

 1: Matte decorative material 2: Base material of matte decorative material 3: Gravure printing layer including a wood grain pattern layer 4: Bead pigment 5: Vehicle in surface protective layer 6: Surface protective layer

Claims (5)

[Claims] 1. A matte decorative material having a surface protective layer made of a coating material containing a bead pigment on a substrate, wherein the particle diameter of the bead pigment in the surface protective layer is in the range of 1 to 40 μm, and The most frequent value of the particle size distribution is in the range of 5 to 15 μ, which is a matte decorative material. 2. The matte decorative material according to claim 1, wherein a wood grain pattern layer is formed between the base material and the surface protective layer made of a paint containing a bead pigment. 3. The matte decorative material according to claim 1, wherein the surface of the surface protective layer is provided with irregularities representing irregularities on the surface of the wood grain board such as wood grain conduit grooves. 4. A coating material containing a bead pigment having a particle size within a range of 1 to 40 μm and a particle size distribution most frequent value within a range of 5 to 15 μm is applied on a base material. Depth 45
A method for producing a matte decorative material, which comprises forming a surface protective layer by coating with a gravure cylinder of 240 μm. 5. A grain pattern having a grain pattern is formed on a substrate, and then a grain size of 1 to 40 is formed on the surface on which the grain layer having the grain pattern is formed.
Within the range of μ, and the most frequent value of particle size distribution is 5 to 1
A method for producing a matte decorative material, which comprises forming a surface protective layer by applying a coating material containing a bead pigment within a range of 5 μm in a gravure cylinder having a recess depth of 45 to 240 μm.