JP2002273829A - Felt-toned decorative material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a decorative material having a felt-tone in consideration of a good qualified feeling, a touching feeling and a flaw resistance in a steel plate-made coated product in good productivity and at a low cost. SOLUTION: A felt-toned decorative material is obtained by laminating an adhesive layer and a surface resin layer in this order on a base material layer wherein a composition forming the surface resin layer is made of an aqueous emulsion type thermoplastic resin containing a heat softening particle and at least two kinds of heat swelling particles each having a different average diameter.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention is used for surface decorative materials such as building interior materials, home appliances, OA equipment cabinets, etc.
The present invention relates to a cosmetic material having a felt-like texture and a soft touch.

[0002]

2. Description of the Related Art Conventionally, as this kind of decorative material, for example, a partition such as a low partition in which cloth, wallpaper, etc. are pasted on the surface of a base material such as plywood or steel plate, direct printing, transfer printing, foil stamping, painting , Home appliances with electrostatic flocking, OA
2. Description of the Related Art Various decorative films are formed on the surface of a base material such as an equipment cabinet.

[0003] However, those using cloth, wallpaper, etc.
There are various problems such as on-site sticking workability, light resistance, surface resistance such as stain resistance, and industrial waste treatment.Electrostatic flocking is excellent in texture and touch, but small lots in production There was a problem that production was not possible.

[0004] Conventionally, as a method for obtaining a felt-like or suede-like texture film, a method of blending elastic or inelastic thermosoftening particles (spherical resin particles) or heat-expandable particles in a paint has been practiced. Had been However, these heat-softening particles, for example, those coated with a paint using only heat-softening particles such as nylon resin, urethane resin, and acrylic resin, have poor texture and touch, while using only heat-expandable particles. Although the material is excellent in texture and touch, there is a problem that scratching (nail scratching) and scratch resistance are inferior.

[0005]

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above-mentioned problems, and has as its object to provide a good texture, touch, and anti-claw resistance for coated steel sheet products. An object of the present invention is to provide a cosmetic material having a felt-like texture in consideration of flaws with good productivity and low cost.

[0006]

Means for Solving the Problems To achieve the above object, the present invention provides a decorative material comprising a base material layer, an adhesive layer and a surface resin layer laminated in this order. Wherein the composition is formed from an aqueous emulsion-type thermoplastic resin containing thermosoftening particles and at least two types of thermally expandable particles having different average particle sizes. It is. By adopting such a configuration, the soft feeling of the heat-expandable particles having different average particle diameters, the interaction between the soft feeling and the claw scratch resistance of the heat-softening particles, the felt feeling excellent in texture, touch feeling, etc. Thus, it is possible to obtain a felt-like decorative material in consideration of surface properties such as nail scratch resistance.

Further, the composition for forming the surface resin layer comprises 5 to 7 parts by weight of thermally expandable particles having an average particle diameter of 6 to 12 μm, based on 100 parts by weight of the aqueous emulsion type thermoplastic resin. 20 to 30 μm thermally expandable particles of 3 to 5
It is characterized by adding 8 to 9 parts by weight of thermosoftening particles having a weight part and an average particle diameter of 75 to 85 μm. By doing so, it is possible to obtain a cosmetic material that more and more develops a felt-like texture in consideration of good texture, touch, and nail flaw resistance.

Further, the aqueous emulsion type thermoplastic resin forming the surface resin layer is characterized by comprising an ethylene-vinyl acetate copolymer resin. By doing so, it is environmentally friendly without generating toxic gas such as hydrogen chloride gas during combustion, and it has excellent workability, low resin cost and good coating workability, so it is excellent in productivity and inexpensive It is possible to obtain a suitable cosmetic material.

Further, in the decorative material, a primer layer and a colored resin layer are sequentially provided between the base layer and the adhesive layer. With such a configuration, diversification of color tone and color is facilitated and the design is excellent, as well as the concealing property, the adhesion to the base material layer is excellent, and the bending workability and the corrosion resistance are excellent.

Further, in the decorative material, a picture printing layer is provided on an upper surface of the colored resin layer. With such a configuration, a design in a cross tone or a wallpaper tone can be provided, and the design can be diversified.

Further, the surface resin layer contains a color pigment. By doing so, it is possible to change the color tone of the felt layer and to make coating unevenness less noticeable, to increase the depth of the color tone, and to achieve excellent design.

Further, the base material layer is made of a metal substrate. By doing so, it becomes excellent in mechanical strength as a surface material, and when used as a building interior material, it becomes suitable as a material of a non-combustible structure.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a layer configuration diagram of a first embodiment of the decorative material of the present invention, FIG. 2 is a layer configuration diagram of a second embodiment of the decorative material of the present invention, and FIG. It is a layer configuration diagram of the embodiment, 1, 1 ', 1''is a decorative material, 2 is a base material layer, 3 is a primer layer, 4 is a colored resin layer,
Reference numeral 5 denotes a picture printing layer, 6 denotes an adhesive layer, and 7 denotes a surface resin layer.

FIG. 1 is a diagram showing the layer structure of a first embodiment of the decorative material of the present invention. The decorative material 1 of the present invention has an adhesive layer 6 on a base material layer 2. A surface resin layer 7 is provided, and the surface resin layer 7 is formed from an aqueous emulsion type thermoplastic resin containing thermo-softening particles and at least two types of thermally expandable particles having different average particle diameters. It is.

The base layer 2 used in the present invention is not particularly limited, and may be any suitable for the intended use, and may be in the form of a sheet in addition to a plate. And cosmetic material 1
Is a decorative steel sheet or the like, the metal substrate layer serving as the base material layer 2 may be a cold-rolled steel sheet, an electrogalvanized steel sheet, a galvanized steel sheet, an alloy galvanized steel sheet, an aluminum alloy galvanized steel sheet, a stainless steel steel sheet , An aluminum plate or the like can be used. The thickness of the base material layer 2 in the decorative steel sheet is preferably 0.3 mm to 1.6 mm depending on the use.

Further, it is preferable to use an adhesive layer 6 between the base material layer 2 and the surface resin layer 7, and to form the adhesive layer 6 having good adhesion with the composition forming the surface resin layer 7. Good to keep. As the resin of the adhesive layer 6, for example, a resin of polyester type, epoxy type, urethane type or the like is used. Examples of the coating method include a natural roll coat, a reverse roll coat, a curtain flow coat and the like, and the dry film thickness of the coat is 1 to 20 μm, preferably 2 to 5 μm.

The aqueous emulsion type thermoplastic resin used for the surface resin layer 7 of the present invention includes non-vinyl chloride aqueous resins such as ethylene-vinyl acetate copolymers, acrylic resins, vinyl acetate resins, urethane resins and polyolefin resins. One or more resin mixtures of emulsion resins can be used, among which ethylene-vinyl acetate copolymer is
It is environmentally friendly without generating toxic gas such as hydrogen chloride gas during combustion, and is excellent in processability, in addition to low resin cost and good coating workability.

The thermally expandable particles contained in the resin component used in the surface resin layer 7 of the present invention are microspherical particles in which a low-boiling organic blowing agent is contained inside the outer shell of a thermoplastic resin, and are generally commercially available. The heat-expandable particles having properties of an average particle diameter of 5 to 30 μm, a thermal expansion temperature of 80 to 180 ° C., and a volume expansion ratio of 20 to 70 times are used.

Examples of the thermoplastic resin constituting the outer shell of the heat-expandable particles include vinylidene chloride-acrylonitrile copolymer, styrene-acrylonitrile copolymer, styrene-methyl methacrylate copolymer, methyl methacrylate-acrylonitrile copolymer Methacrylate-ethyl methacrylate copolymer, methyl methacrylate-O-chlorostyrene copolymer, acrylonitrile-methacrylonitrile copolymer, and polyacrylonitrile. These thermoplastic resins further include other copolymers, divinylbenzene, ethylene glycol di (meth) acrylate, triethylene glycol di (meth) acrylate, trimethylolpropane tri (meth) acrylate, and 1,3-butylene glycol. A crosslinking agent such as di (meth) acrylate, allyl (meth) acrylate, triacrylformal, triallyl isocyanurate and the like may be contained. Of these, the most preferred thermoplastic resin is a vinylidene chloride-acrylonitrile copolymer.

Examples of the foaming agent include chlorine-containing fluorine-based organic compounds such as trichlorofluoromethane, dichlorofluoromethane, dichlorofluoroethane, dichlorotrifluoroethane, trichlorotrifluoroethane, and dichloropentafluoropropane; n-pentane ,
Examples thereof include, but are not limited to, hydrocarbons such as isopentane, neopentane, butane, isobutane, hexane, and petroleum ether, and chlorinated hydrocarbons such as methyl chloride, dichloroethylene, trichloroethane, and trichloroethylene.

The cosmetic material 1 of the present invention is characterized in that at least two kinds of thermally expandable particles having different average particle diameters in the range of 6 to 12 μm and 20 to 30 μm are selected, and these are mixed to form a resin. It is an essential compositional requirement that the components be contained. The heat-expandable particles dispersed in the composition forming the surface resin layer 7 are thermally expanded and foamed at the resin layer baking stage, but the average particle diameter is less than 6 μm. With a composition using only heat-expandable particles, a complex and non-uniform rough surface pattern cannot be formed on the formed coating film, and the unevenness is insufficient and the effect of the felt tone is insufficient. On the other hand, in a composition in which the heat-expandable particles having an average particle diameter of more than 30 μm are mixed, or in a composition using only relatively large heat-expandable particles having a diameter of 20 to 30 μm, the heat-expanded foamed film becomes weak, and nail scratches such as scratches occur. Inferior surface properties due to the properties. The compounding ratio of the two or more types of thermally expandable particles having different average particle diameters is set according to the surface properties such as the texture, tactile sensation, and nail scratch resistance of the target surface resin layer 7. It is preferable to set the range of 7: 3 to 5: 5.

In order to maintain nail surface scratch resistance, it is preferable to add and mix fine powder particles. Examples of the fine powder particles include natural or synthetic mica powder, alumina powder, aluminum hydroxide powder, and titanium oxide. Inorganic fine powders such as powders and silica powders, and organic fine powders such as nylon resin, polyurethane resin, epoxy resin, acrylic resin, polyester resin, and fluororesin can be used. For this purpose, an elastic body having a spherical surface is preferable, and at the film forming temperature, the peripheral surface of each fine particle is partially melted without being completely melted and / or mixed with the film forming resin and partially melted. Is preferably covered with a partially melted material. As such heat-softening particles, polyamide resins such as nylon 6, nylon 11, and nylon 12 are used in the present invention. It is a suitable resin have. And
Heat-softenable particles used may be one containing a colorant such as a pigment or dye therein necessary, Fe ₂ 0 _3, Ti
0 _2, CaCo _3, the fine powder pigment conventional quinacridone, resilient resin, or optionally to a plasticizer, a stabilizer, or dispersed in the composition by adding surfactants and the like, or It is coated with this composition to form spherical particles. The particle size of the thermosoftening particles has a distribution range of 7
It is preferably in the range of 5 to 85 μm, and the blending ratio of the heat-softening particles is such that if the amount is too small, the nail scratch resistance is poor, and if it is too large, the surface has excellent nail scratch resistance. The range of 8 to 9 parts by weight is preferable with respect to 100 parts by weight of the aqueous emulsion type thermoplastic resin, since the felt feeling of the felt texture is reduced.

In the present invention, the paint for forming the surface resin layer 7 can be applied by a usual method such as a curtain coating method or a spray coating method. In the case of a paint that brings out the texture,
Curtain coating is preferable because it does not press down the coated surface unlike roll coating. The thickness of the coating film is preferably set to 20 to 50 μm from the viewpoint of texture and touch.

Next, FIG. 2 shows a layer configuration diagram of a decorative material 1 'according to a second embodiment of the present invention. Hereinafter, the same reference numerals as those of the already described components are used, and duplicate description will be omitted. In the decorative material 1 'of the present invention, a primer layer 3 and a colored resin layer 4 are sequentially provided between the base material layer 2 and the adhesive layer 6 of the decorative material 1 of the first embodiment of the present invention shown in FIG. The other configuration is the same as that of the decorative material 1 of the first embodiment. By providing the primer layer 3 and the colored resin layer 4 in the layer configuration of the decorative material 1 in this manner, diversification of the color tone and color as well as the concealing property is facilitated, the design is excellent, and the base material layer and Excellent adhesion, bending workability,
A decorative material 1 'having excellent corrosion resistance can be obtained.

The primer layer 3 used for the decorative material 1 'of the present invention is used for the purpose of improving the adhesion to the substrate layer 2 and the corrosion resistance of the substrate layer when the substrate layer 2 is made of metal. As the paint for the primer layer 3, for example, a resin such as a polyester-based resin, an acrylic-based resin, or an epoxy-based resin is used, and a resin containing an inorganic rust-preventive pigment is used. As the coating method, for example, a normal method such as a natural roll coat, a reverse roll coat, a curtain flow coat, and a spray coat can be performed.
μm, preferably 2-5 μm.

The colored resin layer 4 is formed on the primer layer 3. Examples of the paint for forming the colored resin layer 4 include non-vinyl chloride resins, for example, polyester resin paint, acrylic resin paint, fluororesin paint, ethylene-vinyl acetate copolymer resin paint, and the like. Is not particularly limited, and may be solvent-based or water-based. In particular, when workability is required, a polyester resin paint is mainly used. The coating method can be performed by a usual method such as reverse roll coating, curtain flow coating, spray coating and the like, and it is preferable to use the curtain flow coating in view of the finished appearance of the coating film surface or work efficiency. The film thickness at the time of drying is 15 to 30 depending on the substrate concealing property, anticorrosion property and the like.
It is preferable that the thickness be set to μm.

FIG. 3 shows a laminated structure of a decorative material 1 ″ according to a third embodiment of the present invention. The colored resin layer 4 of the decorative material 1 ′ of the present invention shown in FIG. The printed pattern layer 5 may be formed on the upper surface to further improve the design.

Examples of the print pattern include a wood pattern, a stone pattern, a cloth pattern, a leather pattern, a geometric pattern, a character, a symbol, and a solid print pattern. A vinyl resin, for example, a polyester, acrylic, alkyd, urethane or other simple substance or mixture of pigments, dyes, solvents, and various auxiliary agents, if necessary, may be used as an ink. it can.
As a printing method, a known method such as gravure printing, offset printing, offset gravure printing, or silk screen printing may be used.

[0029]

Test Example A 0.5 mm electrogalvanized steel sheet (Gincoat, manufactured by Nippon Steel Corporation) was prepared as a base material, the surface thereof was degreased, and a primer layer made of a polyester resin was dried and coated. The film was applied by a roll coater so as to have a film thickness of 2 to 3 μm, and was baked in a circulating hot-air drying furnace.
Next, a colored polyester resin paint was applied by a curtain flow coater and baked in a circulating hot air drying furnace to form a colored resin layer of 15 to 30 μm. Next, an adhesive layer made of a polyester resin is dried to a thickness of 2 to 2.
Apply with a roll coater to 3 μm, then
A color paint obtained by kneading the heat-expandable particles and the heat-softening particles with the aqueous emulsion type ethylene-vinyl acetate copolymer resin on the adhesive layer surface using a curtain flow coater so as to have a dry coating thickness of 20 to 25 μm. Apply, 80 ~
Dry at 100 ° C. After drying, at 170-200 ° C, 60
Heating was performed for ~ 180 seconds to expand the thermally expandable particles to produce a cosmetic material having a felt-like surface layer having a thickness of 20 µm to 50 µm. At this time, the amounts of the heat-expandable particles and the heat-softening particles added (percentage by weight based on the resin solid content) were variously changed as shown in Table 1.

The cosmetic materials prepared in the above test examples were tested by the following method, and the results are shown in Table 1. Test method and evaluation method Tactile sensation: Judge mainly whether or not a moist soft feeling is observed by touching the coating film by hand. ○: Excellent soft feeling □: Slightly poor soft feeling Δ: Poor soft feeling ×: No soft feeling Nail scratch resistance: Rub the coating film with nails and observe the traces on the surface ○: No nail traces are observed □: Slight nail traces are recognized △: Nail traces are clearly recognized ×: Surface paint film is torn

[0031] As can be seen from the above results, all of Test Examples 8, 9, 13, and 14 obtained good results in both tactile sensation and nail scratch resistance. On the other hand, in Test Examples 12, 17, and 18, the touch feeling was excellent in softness and good, but nail marks were clearly observed in nail scratch resistance. In Test Examples 3 and 4, the nail feeling was good but the touch feeling was good. Is slightly inferior in soft feeling, and in Test Examples 2, 7 and 20, slight nail marks are observed even with nail scratch resistance, and in Test Examples 11 and 16, nail marks are clearly recognized even with nail scratch resistance, and in Test Examples 1 and 6, As for the nail scratch resistance, although a slight nail mark is recognized, the soft feeling is inferior, and in Test Examples 21, 22, and 23, the touch feeling is excellent in the soft feeling, but the surface coating film is excellent in nail scratch resistance. In Test Examples 5 and 10, the nail scratch resistance was good without nail marks, but the touch was not soft, and in Test Examples 15 and 20, slight nail marks were recognized even in nail resistance. There was a problem and both were bad.

[0032]

As described above, the felt-like decorative material of the present invention is used as a coating material for forming a surface resin layer as an aqueous material containing two or more types of thermally expandable particles and thermally softening particles having different average particle sizes. By using an emulsion type thermoplastic resin, it is possible to express felt-like designs, and it has a high design with a soft felt-like touch on the appearance,
A felt-like decorative material having excellent surface properties such as nail scratch resistance can be obtained.

Further, as a paint for forming the surface resin layer,
By using the ethylene-vinyl acetate copolymer resin, an environmentally friendly felt-like decorative material can be obtained without generating toxic gas such as hydrogen chloride gas during combustion.

[Brief description of the drawings]

FIG. 1 is a layer configuration diagram of a first embodiment of a decorative material of the present invention.

FIG. 2 is a layer configuration diagram of a second embodiment of the decorative material of the present invention.

FIG. 3 is a layer configuration diagram of a third embodiment of the decorative material of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 1 ', 1' 'Cosmetic material 2 Base material layer 3 Primer layer 4 Colored resin layer 5 Printing picture layer 6 Adhesive layer 7 Surface resin layer

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (reference) // E04F 13/08 E04F 13/08 A 13/12 13/12 A F term (reference) 2E110 AA57 AB23 BA02 BA04 BB02 GA03W GA33X GB02X GB03X GB06X GB43W GB44W GB45W GB52Z GB54W GB54Z 4D075 AC45 AE03 CA02 CA03 CA13 CA18 CA33 CB07 DA06 DB02 DB04 DB05 DB07 DC01 DC18 DC38 EA06 EA13 EA35 EB13 EB14 EB14 EB15 EB15 EB15 EB19 AB17 AK01B AK41 AK68B AL05B AT00A BA02 BA04 BA07 DE01B EH46 EH462 EH463 EJ02 EJ023 EJ42 EJ422 EJ86 EJ863 GB08 GB51 GB51 HB00D JA02B JB05B JB16B JK14 JL10D JM01B JM01C YY00B

Claims (7)

[Claims] 1. A decorative material comprising a base material layer, an adhesive layer, and a surface resin layer laminated in this order, wherein the composition forming the surface resin layer has at least a different average particle size from the heat-softening particles. A felt-like decorative material characterized by being formed from an aqueous emulsion type thermoplastic resin containing two types of thermally expandable particles. 2. A composition for forming the surface resin layer, comprising 5 to 7 parts by weight of thermally expandable particles having an average particle diameter of 6 to 12 μm with respect to 100 parts by weight of an aqueous emulsion type thermoplastic resin. Is from 3 to 5
The composition according to claim 1, wherein 8 to 9 parts by weight of thermosoftening particles having a weight part and an average particle diameter of 75 to 85 µm are added.
2. The felt-like cosmetic material according to 1. 3. The felt-like decorative material according to claim 1, wherein the aqueous emulsion type thermoplastic resin forming the surface resin layer comprises an ethylene-vinyl acetate copolymer resin. 4. The felt-like decorative material according to claim 1, wherein in the decorative material, a primer layer and a colored resin layer are sequentially provided between the base layer and the adhesive layer. 5. The felt-like decorative material according to claim 4, wherein in the decorative material, a picture printing layer is provided on an upper surface of the colored resin layer. 6. The felt-like decorative material according to claim 1, wherein a coloring pigment is added to the surface resin layer. 7. The felt-like decorative material according to claim 1, wherein the base material layer is made of a metal substrate.