JPS6156250B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention has a three-dimensional pattern on the surface of the sheet layer.
The present invention relates to a decorative material provided with an expandable printing medium in a pattern. Conventionally, a method is already known in which a three-dimensional pattern is formed by adding a pattern to a sheet material using a resin containing a foaming agent and foaming the sheet material. However, conventionally used blowing agents usually produce nitrogen through the heating process.
It was produced by decomposing gases such as carbon dioxide, ammonia, oxygen, hydrogen, and water vapor, and stably dispersing bubbles in the raw material. In the case of these blowing agents, decomposition gases were generated by heating them to fairly high temperatures, usually over 200°C. Therefore, in terms of production efficiency, it required a high amount of energy and was economically unsatisfactory. In addition, many of the conventional three-dimensional pattern printing materials use materials with flat surfaces such as paper, synthetic paper, plastic sheets, plate-like materials, etc., so the texture of the materials and the three-dimensional effect are poor. There were some aspects where the design effect was insufficient. At the same time, in terms of economy, the conventionally used ink resin for embellishment is an emulsion-type paste resin in which a foaming agent that requires high-temperature heating is dispersed, so it is suitable for making into ink. Because it becomes a viscous resin with high viscosity (5000~
10,000CPS), printing methods are limited to flat screen printing, rotary screen printing, flexo printing, etc. for patterning, and there are no plates that can be used for highly productive gravure printing, so regular gravure plates are used. Even with the use of ink, it was not possible to ensure sufficient ink transfer. The present invention was made in order to eliminate the drawbacks of the prior art, and its gist is to economically create a highly decorative decorative material using ink that expands and has a three-dimensional effect on a printing material with a three-dimensional pattern. The aim is to produce the product in a practical manner. Next, the contents will be explained in detail based on the drawings. First, a sheet layer 1 with a three-dimensional pattern is prepared in advance by heating or humidifying the sheet layer with a cloth grain pattern, wood grain pattern, etc. In this case, if the material is a plastic synthetic resin sheet, the sheet is softened by heating and the pattern is pressed into it using a metal roll. If the material is cellulose fiber such as paper or synthetic paper, the pattern is stamped using a textured mold roll after humidification, heating, etc. Next, a colored pattern layer 2 is formed on the surface of this three-dimensional patterned sheet layer 1 by using a printing medium.
This printing medium refers to printing ink or paint, and may be any commonly used printing medium. At this time, depending on the material of the sheet layer, in the case of synthetic resin sheets, the binder used as the medium may be acrylic ester, vinyl chloride, vinyl acetate, vinyl acetate-acrylic copolymer, ethylene-vinyl acetate copolymer, polyurethane. , alkyd resin, etc. are used, and in the case of paper-based sheets, cellulose acetate, nitrified cotton, etc. are used. Before or after forming the second colored pattern layer,
The expandable pattern layer 3 is formed using a print medium containing microspherical resin containing gas that expands when exposed to heat or light. As mentioned above, ordinary blowing agents are heated to a fairly high temperature, decompose, generate gas, and create bubbles under the pressure, stably dispersing it almost uniformly into the resin and making the raw material porous. However, the printing medium containing the resin microspheres used in the present invention does not have a decomposition gas generation mechanism, and from the beginning, isobutane gas is used as a flexible resin, and microspheres wrapped in vinylidene chloride resin are coated with acrylic ester, etc. It is made into an ink or paint by uniformly dispersing it in a binder, and it expands sufficiently at a fairly low temperature range of 100 to 150°C to exhibit a three-dimensional heaping effect. When creating each of these 2 and 3 layers,
It was fully suitable for gravure printing machines. That is, the coloring medium of the second colored pattern layer is 100~
500CPS, the expandable medium used for the expandable pattern layer 3 has a viscosity range of about 500 to 1500 CPS, and the resin solid content is 50 to 60% in the case of the expandable medium, and the depth of the gravure plate is 150 to 250μ. It was possible to print to a certain extent. Next, a surface resin layer 4 is applied using a coating method such as a gravure machine, a roll coater, or a flow coater so as to be almost in sync with the ink area, for the purpose of protecting the ink surface, or coloring the ink surface, imparting gloss, etc. It was established as Depending on the amount of resin deposited and the coating method, it is possible to apply the resin partially so that it almost matches the patterned area of the sheet, or it is also possible to apply the resin to the entire area if necessary. . The resin used for this surface resin layer can be a hardening type resin such as urethane resin, amino resin, or polyester resin, or a dry solidifying type resin such as vinyl chloride resin, acrylic acid ester resin, cellulose acetate resin, or nitrified cotton. . Note that the step of expanding the expandable ink may be performed before or after attaching the surface resin layer, and the expansion effect can be sufficiently exerted. However, UV irradiation can also be sufficiently effective. As described above, by using a material with three-dimensional patterns such as cloth grain, wood grain, stone grain, sand grain, textile pattern, etc. as a printing material by heat embossing or rewet embossing,
It is possible to create beautiful patterns with a higher level of design, and the printing plate material for the pattern can be selected from grain screens, lattice screens, tortoise shell screens, parallel screens, etc. according to the pattern, and the pitch of the screen can also be adjusted to 1. By using 15 to 150 lines between inches to match the pattern, if you want to color and pattern only the convex parts of the base material with a three-dimensional pattern, the depth of the plate can be within a shallow range of about 15μ to 40μ. and
Further, when the colored pattern is applied to the concave portion, it is possible to do so by adjusting the plate depth to a depth of about 100 μm to 300 μm. In this way, the design of the three-dimensional pattern can be achieved by arbitrarily selecting the type of plate to obtain a decorative material that exhibits a more effective pattern than can be seen in conventional products. When this decorative material is used for aesthetic purposes such as walls, ceilings, interior furniture, etc., it can exhibit a beautiful effect with excellent three-dimensionality of the pattern. Example 1 PVC 100 parts by weight Calcium carbonate 50 parts by weight DOP 50 parts by weight Ca-Zn stabilizer 5 parts by weight A PVC paste range with the above composition was prepared with a basis weight of 70 parts by weight.
g/m ² paper, heated to 120-150℃ using a wood grain embossing plate, and heat embossed to semi-gel the paste range and impart a wood grain pattern to the surface of the PVC paste. I made a body sheet. Next, use a gravure and screen printing machine to print on the surface of this sheet.

[Table] Tongue expanding agent The above printing ink was applied using the printing ink of composition A and the expansion type ink of composition B, partially in synchronization with the embossed diaphragm. Next, after applying 5 to 15 g/ ^m2 of polyol isocyanate resin to the surface,
The resin was dried and solidified and the ink expanded by passing through a hot air drying oven at 150°C, resulting in a decorative material with a highly decorative design that was embossed with a wood grain pattern and at the same time had a matching pattern of printing ink. Example 2 In Example 1, a decorative material was obtained by drying, solidifying and expanding the expanding agent by irradiating it with infrared rays and ultraviolet rays, without using hot air, and an improvement in production efficiency was observed. . Example 3 Polyolefin synthetic paper (manufactured by Toyo Tuffper Co., Ltd.) containing extender pigment and using polyethylene as a base material,
After embossing the texture pattern to create a three-dimensional effect, the base texture pattern is inked with acrylic polyol resin ink and this resin mixed with 20% by weight Saran Isobutane expanded material manufactured by Dow Chemical Company. Add 10 inorganic colorants to each of the two types of
~20% was mixed in and the pattern was printed using a gravure printing machine. Next, a surface resin layer was provided on the acrylic polyol-based resin, and then the expanded body was expanded and dried and solidified by irradiation with ultraviolet rays, thereby obtaining a three-dimensional pattern printed decorative material with a high design effect for fabrics. Example 4 A nonwoven fabric made by randomly arranging yarns made by spinning polyester resin into fibers and partially heat-sealing them to create bonds between the fibers was heat-embossed at 200 to 300°C to provide a rope-like pattern. I made the printing material. Next, the surface is coated with an ethyl acetate solution of isocyanate, and then a pattern is created using an ink containing a polyamide resin mixed with a colorant and an ink containing a colorant and an expanded saran isobutane manufactured by Dow Chemical Co., mixed with an acrylic polyol resin. After painting by gravure printing, a surface resin layer of urethane resin was applied, and at 100 to 150°C, the ink and resin were dried and solidified, and at the same time, the expansion agent was expanded. The obtained decorative material was excellent in design, taking advantage of the texture of the nonwoven fabric and also having a three-dimensional pattern. Example 5 After printing a melamine-alkyd modified resin on the surface of a thin paper with a basis weight of 30 g/m ² , a cyantan weave pattern with a depth of approximately 50 μm was imprinted, and the resin was cured at 100 μm or more. Heated to 180°C. Next, a textile pattern is gravure printed on the surface of the processed paper using a printing ink containing a cellulose resin as a binder and an ink containing an acrylic polyol resin and a saran isobutane swelling agent manufactured by Dow Chemical Company. A surface resin layer was formed using the coating agent used as the base material. After that, the printed matter
heating to 100 to 150°C to expand the expansion agent;
A decorative material was obtained that beautifully reproduced the Shintan weave pattern on the surface of the tissue paper. Example 6 The resin to be printed on the thin paper surface in Example 5 was
Substantially similar decorative materials were obtained using urea-modified melamine formaldehyde resin, polyurethane resin, polyester resin, phenol resin, and epoxy resin.

[Brief explanation of the drawing]

FIG. 1 is a partially enlarged sectional view of the decorative material of the present invention, and FIG. 2 is a perspective view of the decorative material of the present invention. 1... Sheet layer with three-dimensional pattern, 2... Colored pattern layer, 3... Expandable pattern layer, 4... Surface resin layer.

Claims (1)

[Scope of Claims] 1. After forming an expandable pattern layer 3 on the uneven surface of the three-dimensional patterned sheet layer 1 using an ink containing microcapsules containing isobutane gas, or applying a colored pattern layer 2, or Alternatively, after applying the colored pattern layer 2, an inflatable pattern layer 3 is formed using an ink containing microcapsules containing isobutane gas, and then a surface resin layer 4 is further applied thereon as necessary. . A method for producing a three-dimensional pattern decorative material having an expanded pattern layer, which comprises subsequently expanding the expandable pattern layer 3. 2 The viscosity of the printing medium forming the expandable pattern layer 3 is
A method for producing a three-dimensional patterned decorative material having an expanded pattern layer according to claim 1, wherein the inflated pattern layer is approximately 500 to 1500 CPS.