JP3997803B2 - Cosmetic material - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an interior material such as a wall material and a ceiling material in a building such as a house, a fitting material such as a door, and a decorative material for use in furniture.
[0002]
[Prior art]
For decorative materials such as decorative paper, decorative sheets, decorative plates, etc. used for the above-mentioned purposes, for example, three-dimensional effects and textures comparable to solid wood or veneer, etc., can be printed without embossing. As a technique that can be expressed only by using a plurality of types of printing inks with different glossy states after printing, the surface glossy surface of the decorative material is made different depending on the location. A technique for expressing a feeling or a feeling of material is already widely known (see Japanese Patent Application Laid-Open No. 2001-157872, etc.).
[0003]
In the above technique, as a means for adjusting the gloss state of the printing ink, conventionally, an inorganic fine powder such as silica, calcium carbonate, barium sulfate or the like is generally added as a matting agent. However, when a large amount of inorganic fine powder is added to the matte printing layer using these inorganic fine powders in order to increase the matte degree, the matte printing layer tends to whiten or the surface is roughened. In addition to being inferior in design, the fluidity of the printing ink is reduced, and this is likely to cause plate clogging, streaks, unevenness, etc. during printing.
[0004]
In addition, in order to more naturally express the three-dimensional feeling and the material feeling, even if an attempt is made to give the matte printing layer a continuous tone by using a printing plate having a continuous tone (tone plate), the amount of wallet Since the range of gloss change that can be expressed by the change of is narrow, it is not very effective in terms of design. As a continuous tone expression method, there is also a technique of using a halftone plate to make an area tone instead of changing the amount of inking, but with printing ink whose fluidity has decreased due to the addition of inorganic fine powder, In particular, fine halftone dots in the highlight portion are hardly printed, and a sufficient design effect cannot be obtained.
[0005]
Furthermore, in any of the above methods, in the highlight portion where the amount of resin applied is small, the surface properties such as wear resistance are also inferior, and the matte effect is easily lost due to wear or the like, thereby reducing the design effect. For this reason, there is a problem in that the use of the obtained decorative material is limited to uses whose required physical properties are not so strict, such as wall surfaces and side surfaces of furniture.
[0006]
[Problems to be solved by the invention]
The present invention has been made in order to solve the above-described problems in the prior art, and the object of the present invention is to visually express a three-dimensional effect and a material feeling by changing the gloss state of the surface. In cosmetic materials, it has excellent gradation (tone) expressiveness of matte printing layer, no problems such as whitening and rough surface, excellent printability of matte printing ink, and low resin coating highlights Another object of the present invention is to provide a cosmetic material with little reduction in wear resistance and the like.
[0007]
[Means for Solving the Problems]
The decorative material of the present invention comprises a transparent resin layer and a transparent matte printing layer having a continuous gradation provided in this order on the design of the base material to which the design has been applied. The printed layer has a transparent resin bead added to make it at least matte than the transparent resin layer, and the transparent matte print layer is in a pattern synchronized with the pattern by a printing plate having a continuous tone. It is characterized by being provided.
[0008]
In the decorative material, a pattern is imparted to the base material, and the transparent matte printing layer is provided in a pattern synchronized with the pattern.
[0009]
In the decorative material, the transparent resin beads are spherical transparent acrylic resin beads.
[0010]
In the decorative material, the average particle size represented by a 50% cumulative height of the particle size distribution of the transparent resin beads is 15 to 25 μm.
[0011]
In the decorative material, the difference between the maximum particle size and the minimum particle size in the particle size distribution of the transparent resin beads is 40 μm or more.
[0012]
Further, in the cosmetic material, the transparent resin bead is added to 30 parts by weight per 100 parts by weight of the solid content of the transparent synthetic resin having no matte or light diffusive property, so that the matte or light diffusive property is added. When applied to one side of a film made of a transparent synthetic resin having no average thickness of 15 μm, the increase in the haze degree of the film after coating compared with the film before coating is 5 to 30%. It is characterized by being in the range of.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIG. 1, the decorative material of the present invention is formed by providing a transparent resin layer 3 and a transparent matte printing layer 4 having a continuous gradation on a base material 1 at least in this order. In general, the pattern layer 2 is provided between the substrate 1 and the transparent resin layer 3. In the present invention, it is important that the transparent matte printing layer 4 contains transparent resin beads as a matting agent.
[0014]
When the transparent matte printing layer 4 is provided in a pattern synchronized with the pattern layer 2 provided between the substrate 1 and the transparent resin layer 3, the effect of synchronization between the color pattern and the gloss change pattern is achieved. As a result, a more excellent three-dimensional feeling and material feeling can be obtained. For example, if the pattern layer 2 is a wood grain pattern, the transparent matte printing layer 4 is a matte-like portion in natural wood (in many cases it is a spring wood portion, but depending on the tree species it may be an autumn wood portion) It is good to provide along the place equivalent to.
[0015]
The transparent resin beads as a matting agent have a large matting effect because of their large particle size compared to inorganic powders such as silica, and the transparency is high so that the matte printing layer 4 is not whitened. Since the outer shape is spherical or a shape close to it, the surface of the matte printing layer 4 does not have a rough matte shape, and it has a smooth and elegant matte shape. Excellent in terms of quality.
[0016]
In order to suppress whitening and the feeling of roughness and to fully exhibit the effects of the present invention, it is desirable to use transparent resin beads having as high a transparency as possible. Specifically, as transparent resin beads, for example, those made of urethane resin, acrylic resin, styrene resin, polycarbonate resin, epoxy resin, polyamide resin, etc. are known, but among them, those made of acrylic resin with the highest transparency are known. Most desirable to use.
[0017]
Also, the shape of the transparent resin bead particles has an effect on the matte effect, and flat, angular, rough surfaces, etc. are likely to cause whitening and roughness. It is most desirable.
[0018]
From the above viewpoints, as a guideline for selecting transparent resin beads, a clear transparent synthetic resin (for example, urethane resin) having no matte or light diffusibility, and 30 parts by weight per 100 parts by weight of the solid content thereof. In addition, an average film thickness of 15 μm is formed on one surface of a film made of a transparent synthetic resin (for example, a biaxially stretched polyethylene terephthalate resin film) having no matteness or light diffusibility (desirably having a haze of 1% or less). Transparent resin beads may be selected such that when applied to a thickness, the increase in the haze degree of the film after application compared to the film before application is in the range of 5-30%.
[0019]
In addition to the above, the advantage of using transparent resin beads is that they have excellent wear resistance. As described above, the transparent resin bead has a spherical shape or a shape close thereto, so that it does not protrude sharply from the surface of the transparent matte printing layer 4, and therefore the transparent resin bead can be removed even when subjected to external force. Since crushing, abrasion, and the like are unlikely to occur, the matte degree of the transparent matte printing layer 4 is unlikely to change.
[0020]
From the aspect of wear resistance described above, the higher the mechanical strength of the transparent resin beads, the more advantageous. In that sense, it is desirable to use a cross-linked resin. Specifically, it is most desirable to use a cross-linked acrylic resin bead in consideration of the above-described transparency and the like.
[0021]
The average particle diameter of the transparent resin beads is arbitrary depending on the desired matting degree, three-dimensionality, and material feeling of the target cosmetic material, but if it is too small, the matting effect is not sufficient and the matting effect is produced. For this reason, a large amount of addition is required, which may cause whitening or a rough feeling. On the other hand, if the amount is too large, printing becomes difficult or the printing layer tends to fall off. It is desirable to use one having an average particle diameter represented by a 50% cumulative height of distribution of 15 to 25 μm.
[0022]
The transparent resin beads also have an advantage of enabling rich continuous tone expression of the transparent matte printing layer 4. The reason is that many transparent resin beads available on the market generally have a wide particle size distribution.
[0023]
In other words, when matte printing ink containing transparent resin beads with a wide particle size distribution is printed on a printing plate having a continuous tone (tone plate), large-diameter particles are printed well on the shadow area. However, it is difficult to print on the highlight area.
[0024]
Therefore, in shadow areas where the amount of printing ink applied is large, particles with a small particle size are buried in the ink film or hidden behind the particles with a large particle size, so that the effect is not so great. On the other hand, the effect due to the particles is the main component. On the other hand, in the highlight portion where the coating amount is small, there is almost no large particle size, so the effect due to the small particle size is the main component.
[0025]
In this way, the shadow portion and the highlight portion not only differ in the amount of matt printing ink applied, but also because the particle size of the transparent resin beads that are the main component of the matt effect differs. It is considered that continuous tone is reproduced well.
[0032]
From the above viewpoint, as the transparent resin beads used in the present invention, the range of the particle size distribution, that is, the maximum particle size and the minimum particle size, in a range not including particles that are so large that they cannot be printed. It is desirable to use those having large differences.
[0033]
As a specific numerical value of the width of the particle size distribution, if it is approximately 40 μm or more in a practical range, the effect of the present invention is sufficiently achieved. According to the present inventors' trial production, good results were obtained using a particle size distribution in the range of 5 to 70 μm.
[0034]
In the present invention, the material of the substrate 1 is not particularly limited, and the same material as that in the conventional decorative material can be used. Specifically, for example, paper such as thin paper, titanium paper, resin-impregnated paper, resin-mixed paper, inter-paper reinforced paper, fibrous base materials such as woven fabric or non-woven fabric, olefin resin, polyester resin, acrylic resin Films or sheets made of synthetic resin such as styrene resin and polyvinyl chloride resin, extrusion molded products, injection molded products, synthetic resin base materials such as fiber reinforced plastic, wood veneer, plywood, laminated wood, medium density fiber Wood base materials such as boards and particle boards, glass, ceramics, gypsum board, slate boards, calcium silicate boards, wood wool cement boards, inorganic base materials such as lightweight cellular concrete, metals such as iron, brass, aluminum and stainless steel A metal-based substrate such as a plate, a metal foil, or a molded body, or a mixture of a plurality of types thereof, a composite, a laminate, or the like can be used.
[0035]
In the case where the substrate 1 is a multi-layer laminate made of the same or different materials, after the pattern layer 2, the transparent resin layer 3, and the transparent matte printing layer 4 are formed on the surface of any one layer in advance. Other layers may be laminated on the back surface. Specifically, for example, after the pattern layer 2, the transparent resin layer 3, and the transparent matte printing layer 4 are formed on the surface of paper or a synthetic resin film, a wooden substrate, an inorganic substrate, a synthetic resin substrate A method for producing a decorative material that is a final product by laminating on a surface of a material, a metal-based substrate, or the like can be given.
[0036]
The pattern layer 2 is provided to give the decorative material of the present invention a design with a colored pattern, and its constituent materials and forming method are not particularly limited, and are basically formed in the same manner as conventional cosmetic materials. can do. Specifically, it may be formed by various known printing methods using a printing ink obtained by kneading a colorant such as a dye or a pigment together with an appropriate binder resin and an appropriate solvent. Further, if necessary, a concealing or non-concealing solid layer may be provided.
[0037]
Examples of the colorant include organic pigments such as azo, lake, quinacridone, isoindolinone, phthalocyanine, and anthraquinone, and inorganic pigments such as titanium oxide, zinc oxide, carbon black, iron oxide, and cobalt blue. For example, nitrified cotton, casein, urethane, acrylic, vinyl chloroacetate, polyamide, polyester and the like can be used alone or as a mixture of a plurality of types.
[0038]
As the printing method, for example, gravure printing method, offset printing method, screen printing method, flexographic printing method, ink jet printing method, etc., and if it is solid, for example, gravure coating method, roll coating method, knife coating method, die coating method, lip coating Conventionally known methods such as a coating method, a comma coating method, a flow coating method, a spray coating method and the like can be appropriately used.
[0039]
The type of the pattern is not particularly limited, and is arbitrary as desired. For example, a wood grain pattern, a stone pattern, a cloth pattern, an abstract pattern, a geometric pattern, a character or a symbol, or a combination of plural kinds thereof, etc. Of course, it doesn't matter.
[0040]
In addition, when the base material 1 is a transparent sheet-like body like a transparent thermoplastic resin film, the pattern layer 2 can also be provided in the back surface side of the base material 1. FIG. In addition, the base material 1 is made to contain a colorant in a non-uniform manner so that a pattern appears on the surface, or the surface of the base material 1 is dyed with a sublimation dye or a melt transferable dye. 1 itself may be provided with a pattern.
[0041]
The material of the transparent resin layer 3 may be a transparent resin composition that can form a uniform layer with a uniform gloss state on the surface of the substrate 1, for example, an extrusion coating layer of a transparent thermoplastic resin, etc. However, the simplest method is to apply a transparent resin solvent solution or an uncured liquid resin. As the type of the resin, it is desirable to use a curable resin because of the surface properties of the decorative material.
[0042]
Specifically, for example, thermosetting resins such as melamine resins, epoxy resins, urethane resins, aminoalkyd resins, cross-linked acrylic resins, urea resins, phenol resins, unsaturated polyester resins, An ionizing radiation curable resin such as a (meth) acrylate-based resin, an epoxy-based resin, and an unsaturated polyester-based resin can be suitably used.
[0043]
As the binder resin of the transparent matte printing layer 4, the same resin as that constituting the transparent resin layer 3 can be used. The formation method of the transparent resin 3 and the transparent matte printing layer 4 may be appropriately selected from conventionally known various printing methods and coating methods as in the case of the pattern layer 2 described above.
[0044]
The transparent resin layer 3 and / or the transparent matte printing layer 4 may be added with a colorant or a filler as long as necessary so long as the transparency and gloss state are not impaired. Various additives such as a light stabilizer, an antioxidant, an antibacterial agent, an antifungal agent, a lubricant, a lubricant, a volatile organic substance absorbent, and an antistatic agent may be appropriately added.
[0045]
【Example】
Example 1
Printed on a thin paper with a grammage of 30 g / m ^{2 with} a nitrified cotton-based normal printing ink (solid base plate, blurred plate, bone plate, conduit plate), and a matting agent added on it A transparent two-component curable acrylic urethane resin is applied so that the coating amount after drying is 4 g / m2, and after drying with the touch, a transparent matte printing ink with the following composition is used to express the autumn wood part in the wood grain pattern. Using the reverse version of the bone plate to be printed (tone version), the wood grain pattern and the register were printed, and the autumn wood part was glossy and the spring wood part was matte, and the glossy state at the boundary between the two It was possible to obtain a decorative paper which is a decorative material of the present invention having a design effect with a three-dimensional texture that reproduces the change in luster of natural wood .
[0046]
Transparent matte printing ink composition
Acrylic polyol resin (solid content 35% by weight) 100 parts by weight Transparent cross-linked acrylic resin beads 30 parts by weight Silicone release agent 5 parts by weight Anti-settling agent 1 part by weight Non-yellowing isocyanate curing agent 20 parts by weight
Diluent solvent appropriate amount [0047]
The cross-linked acrylic resin beads have a particle size distribution range of 5 to 70 μm and a particle size at a cumulative height of 50% of 20 μm. This is 30 wt. Per 100 parts by weight of resin solid content in a transparent urethane resin. The haze degree of a coating film obtained by coating a partly added coating on a highly transparent biaxially stretched polyester resin film (having a haze of 0.8%) having a thickness of 100 μm was 10.3%. .
[0052]
【The invention's effect】
As described in detail above, according to the present invention, compared with a cosmetic material using a matting agent made of an inorganic powder such as conventional silica, the whitening and roughness of the transparent matte printing layer is eliminated, A richer gradation expression of glossiness is possible, an expression that emphasizes the visual three-dimensional effect due to gloss difference, and the glossiness of natural wood and the luster of spring and autumn wood parts More realistic reproduction of differences, etc. is possible, and the surface wear resistance has also been improved, allowing applications to be expanded. Furthermore, since it is possible to express the glossy gradation without using a tone plate that lacks printing stability, various excellent features such as facilitating continuous mass production of cosmetic materials with stable design quality are also possible. It has a practical effect.
[Brief description of the drawings]
FIG. 1 is a side sectional view showing an embodiment of a decorative material of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Base material 2 ... Pattern layer 3 ... Transparent resin layer 4 ... Transparent matte printing layer

Claims (5)

  A transparent resin layer and a transparent matte printing layer having a continuous gradation are provided on the design of the base material provided with a pattern at least in this order, and the transparent matte printing layer comprises transparent resin beads. And at least the transparent resin layer is matte, and the transparent matte printing layer is provided in a pattern synchronized with the pattern by a printing plate having a continuous tone. A cosmetic material characterized by   The cosmetic material according to claim 1, wherein the transparent resin beads are spherical transparent acrylic resin beads.   3. The cosmetic material according to claim 1, wherein an average particle size represented by a 50% cumulative height of the particle size distribution of the transparent resin beads is 15 to 25 [mu] m.   The cosmetic material according to any one of claims 1 to 3, wherein a difference between the maximum particle size and the minimum particle size in the particle size distribution of the transparent resin beads is 40 µm or more. The transparent resin bead is added to 30 parts by weight per 100 parts by weight of the solid content of the transparent synthetic resin having no matte or light diffusing property, so that the transparent resin bead has no matte or light diffusing property. When the film is coated on one side with an average film thickness of 15 μm, the increase in the haze degree of the film after coating compared to the film before coating is in the range of 5 to 30%. decorative material according to any one of claims 1 to 4, characterized in that.

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