JPH01253449A - Relief-patterned material and its manufacture - Google Patents

Abstract

PURPOSE:To produce a material having a sharp relief pattern on its surface with an excellent cubic effect, by forming the relief pattern, composed of ioniza tion radiant curing resin on the base material. CONSTITUTION:On the surface of polyester film, as a separation base material 12 for example, an abstract pattern 11 is printed with white ink of ultraviolet ray shielding type using a gravure form plate, and the other hand, ultraviolet radiant curing paint 13 of transparent color is flow-coated on a vinyl chloride plate 2. Next, the printed surface of the stripping base material 12 is overlaid on the surface coated with ultraviolet radiant curing paint. The, ultraviolet rays are radiated from the separation base material side, and after that the separating base material is removed. The ultraviolet radiant curing paint on parts on the separation base material on which white ink is not applied is set to form raised portions 4, and the ultraviolet radiant curing paint on another parts on which the pattern is printed with white ink remains unset and removed with the separation base material to form hollow portions 6.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an uneven pattern forming body and a method for manufacturing the same.

[Conventional technology and the problem to be solved by the invention]

Conventionally, for example, in order to give a three-dimensional effect to a pattern on a smooth surface, the pattern itself has been made thicker, but in order to give the pattern thickness, a special printing method is required. In some cases, it is difficult to form sharp bulges, and beautiful three-dimensional patterns cannot be easily formed. Further, as a matter of course, the resulting three-dimensional patterned product lacked sharpness and three-dimensional effect, especially in the three-dimensional pattern itself.

The present invention has been made in view of the above points, and provides a concavo-convex pattern forming body that exhibits a sharp and beautiful three-dimensional effect, and a method for manufacturing a concave-convex pattern that allows the concavo-convex pattern forming body to be easily manufactured. The purpose is to provide

[Means to solve the problem]

The present invention provides: [(1) An uneven pattern forming body in which an uneven pattern made of an ionizing radiation curable resin is specially formed on a substrate for forming an uneven pattern.

(2) A decorative material in which a concavo-convex pattern made of an ionizing radiation-curable resin is formed on a base material for forming a concavo-convex pattern.

(3) The uneven pattern formed body according to claim 41 or 2, wherein a pattern layer is provided on the convex portions of the uneven pattern.

(4) The concavo-convex pattern formed body according to any one of claims 1 to 3, wherein a wiping layer is provided in the concave portions of the concavo-convex pattern.

(5) The uneven pattern formed body according to any one of claims 1 to 4, wherein a protective layer is provided on the entire surface of the uneven pattern or only on the convex portions.

(6) The chair according to any one of claims 1 to 5, wherein the base material for forming a concavo-convex pattern is a base material for forming a concavo-convex pattern provided with a colored pattern layer.

An uneven pattern forming body described in Crab.

(7) The uneven pattern forming body according to any one of claims 1 to 6, wherein the uneven pattern forming substrate is an uneven pattern forming base material having an uneven surface.

(8) A method for manufacturing a concavo-convex pattern formed body, which is specially formed by performing each of the following steps in order.

(a) Ionizing radiation shielding gi, t1 on either the front or back side of the electrothermal radiation transparent release base material whose surface has rlI releasability.
a step of providing an i-pattern, (b) a step of overlapping a base material for forming an uneven pattern and a release base material via an ionizing radiation curable resin layer, (c)
irradiating ionizing radiation from the release base material side to cure the high radiation curable resin layer corresponding to the portion without the ionizing radiation shielding pattern; (d) peeling off the release base material and curing with ionizing radiation; A step in which a part of the uncured resin of the adhesive resin layer is attached to a release base material and removed.

(9) The method for manufacturing an uneven pattern formed body according to claim 8, wherein a pattern layer is provided on a peelable base material, and the pattern layer is specially formed on the convex portions of the uneven pattern by peeling off the peelable base material.

00) After the release base material is peeled off, the uncured ionizing radiation curable resin remaining on the base material for forming a concavo-convex pattern is cured by irradiating with release radiation. Method for manufacturing a formed body.

(11) The method for producing an uneven pattern forming body according to claim 8 or 9, wherein after peeling off the release base material, uncured ionizing radiation-curable resin remaining on the uneven pattern forming base material is removed.

The method for producing an uneven pattern formed body according to any one of claims 8 to 11, wherein after peeling off the release base material, a protective layer is specially formed on the entire surface of the uneven pattern or only on the convex portions. ” is the gist.

[Effect]

According to the present invention, the ionizing radiation-curable resin on the base for forming the concavo-convex pattern does not harden in the portion with the ionizing radiation-shielding pattern. l+! It is removed by peeling off the base material, and in areas where there is no ionizing radiation shielding pattern, the ionizing radiation curable resin hardens and remains, forming an uneven pattern. A concavo-convex pattern formed body having a concavo-convex pattern is obtained.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an uneven pattern forming body of the present invention. The uneven pattern forming body 1 of the present invention has a structure in which an uneven pattern 3 made of an ionizing radiation curable resin is provided on a base material 2 for forming an uneven pattern. . Further, as shown in FIG. 2, the uneven pattern forming body 1 is provided with a pattern layer 5 by transfer on the convex portions 4 of the concavo-convex pattern, and by providing this pattern layer 5, a design effect that is in tune with the convex pattern can be obtained. .

Further, as shown in FIG. 3, in the uneven pattern forming body 1, a wiping ink layer 7 is provided in the recessed portions 6 of the uneven pattern, and by providing this ink layer 7, a design effect that is in tune with the recessed portion pattern can be obtained. Furthermore, the uneven pattern forming body 1 is provided with a protective layer 8 in order to protect the surface of the uneven pattern 3, etc., and even if the protective layer 8 is formed only on the convex portions 4 of the uneven pattern (FIG. 2), It may be formed on the entire surface of the pattern 3 (FIG. 3), and when the wiping ink N7 is provided, a protective layer 8 may be further formed.

In addition, the uneven pattern 81-formed body 1 may be a substrate 2 for forming an uneven pattern provided with a colored pattern layer 9 as shown in FIG. 2 or 3 as needed, or a substrate for forming an uneven pattern having an uneven surface. Consists of 2. The colored pattern layer 9 is a colored layer or a pattern layer, or a combination of both layers, and may be provided on the entire surface or a part of the base material 2. The base material 2 for forming an uneven pattern has an uneven surface. In this case, the uneven pattern 3 follows the uneven surface, and the uneven surface itself may be present in a part of the base material 2.

Although the concavo-convex pattern forming body 1 of the present invention constructed as described above can be applied to any purpose, it is most preferably used as a decorative material.

Next, a method for manufacturing the uneven pattern forming body having the above structure will be explained.

First, in the manufacturing method of the present invention, as shown in FIG. 4, a release base material 12 having an ionizing radiation shielding pattern 11 provided on either the front or back surface is prepared. Further, when forming the pattern layer 5 by transfer on the convex portions 4 having an uneven pattern, the pattern layer 5 is provided on the release base material 12 at this stage 7.

The release base material 12 is made of a sheet or film that is transparent to ionizing radiation, and when the ionizing radiation is ultraviolet rays, examples include sheets or films of polyester, polyamide (such as nylon), polypropylene, and fluororesin. Preferably, it does not contain pigments that affect ultraviolet transmittance. When the ionizing radiation is an electron beam, there are no restrictions because the electron beam has high transparency, and in principle, the above-mentioned sheets or films that transmit ultraviolet rays can be used, and paper and the like can also be used.

At least the ionizing radiation curable resin layer 13 of the release base material 12
(Figure 6) The surface in contact with the material must be releasable, and if the material itself does not have releasability, use a releasable surface by applying a releasable resin or composition. . The thickness of the base material 12 is 5 to 200 μm, especially 25 to 10 μm.
0 μm is preferable.

The ionizing radiation shielding pattern 11 is for shielding ionizing radiation when ionizing radiation is irradiated from the upper surface side of the release base material, and the position where the pattern 11 is provided is as shown in the fourth article. It may be on the lower surface side of the material 12, or on the upper surface side of the release base material 12, although not particularly shown, or if the pattern layer 5 etc. is provided on the release base material 12 as necessary, it may be provided on the layer 5. good.

When the ionizing radiation is ultraviolet rays, the material forming the ionizing radiation shielding pattern 11 may be a substance that reflects and shields ultraviolet rays, such as a filler such as titanium oxide, potassium sulfate, or calcium carbonate, or a particle size of 0. .Ink containing a pigment with a large hiding power of about 3 to 10 μm, substances that absorb ultraviolet rays, such as ultraviolet absorbers such as benzophenol, salicylate, henctriazole, and acrylonitrile, light-absorbing pigments, and carbon blanks. Alternatively, an ink containing a quencher (for example, a metal complex salt type or a hindered amine type) together with an inorganic substance may be mentioned. When the ionizing radiation is an electron beam, examples include the above-mentioned inks and inks containing other pigment-based inks. The ionizing radiation shielding pattern 11 can be formed using these inks by a normal printing method.

The pattern layer 5 provided on the release base material 12 is transferred onto the convex portions of the uneven pattern, and is formed using various paints or inks depending on the purpose. The pattern layer 5 is transparent to ionizing radiation because it is necessary to transmit ionizing radiation to cure the ionizing radiation-curable resin layer described below. When the ionizing radiation is ultraviolet rays, in order to ensure ultraviolet transmittance, it is better to avoid using too many pigments and fillers that interfere with ultraviolet transmittance. good. The pattern layer 5 may be formed as a uniform layer (a so-called flat layer) or may be provided in a pattern. The pattern layer may be a printed layer of one color or a printed layer of two or more colors.

Next, as shown in FIG. 5, the relief base material 12 provided with the ionizing radiation-transparent pattern 11 was separately coated with an ionizing radiation-curable resin layer 13, which was then applied to a base material for forming an uneven pattern. Lay it on the resin layer 13 side of No. 2 and bring it into close contact (Fig. 6)
However, when the release base material 12 is stretched on a frame and used, the release base material 12
It is preferable because it enables repeated use. The ionizing radiation curable resin layer 13 may be provided by coating it on the base material 2 for forming an uneven pattern, or may be provided by coating it on the release base material 12. It may also be provided by applying it to the surface.

The base material 2 for forming the uneven pattern may be of any material, but for example, ■ Temporary or molded products of metal such as stainless steel, steel, aluminum, or copper, ■ Glass, marble, etc.
Inorganic boards or molded products such as ceramics, gypsum board, asbestos cement board, calcium silicate board, GRC (glass fiber reinforced cement), ■Organic polymer boards and molded products such as polyester, melamine, polyvinyl chloride, diallyl phthalate, etc. Or these sheets, films, wood, plywood,
Wooden boards or molded products such as particle board, tissue paper, bleached kraft paper, titanium paper, linter paper, paperboard, gypsum board paper, etc.; polyethylene film, polypropylene film, polyvinyl chloride film, polyvinylidene chloride film, polyvinyl alcohol plastic film such as film, polyethylene terephthalate film, polycarbonate film, nylon film, polystyrene film, ethylene vinyl acetate copolymer film, ethylene vinyl alcohol copolymer film, ionomer; metal foil or sheet of iron, aluminum, copper, etc.; Examples include composites of each of the above materials. These base materials 2 for forming an uneven pattern may be subjected to surface treatment such as sealing treatment or primer treatment, treatment for improving adhesiveness, and the like.

Further, when the colored pattern layer 9 is provided on the base material 2 for forming an uneven pattern, the pattern of the core layer 9 may be provided in a pattern that is synchronized with the pattern of the ionizing radiation shielding pattern 11; No need to form. The colored pattern layer 9 can be formed by a known printing method using ordinary ink, paint, etc., but it can also be formed by transferring the colored pattern itself onto the base material 2, or by laminating sheets provided with the colored pattern. It can also be formed by This colored pattern layer 9 is usually provided on the side where the ionizing radiation curable resin [13 is provided (top side)] of the base material 2 for forming a concavo-convex pattern, but when the base material 2 for forming a concavo-convex pattern is made of a transparent material, , the base material 2
It can also be provided on the lower surface side.

The ionizing radiation curable resin layer 13 is mainly composed of polymers, oligomers, hexamers, etc. that have radically polymerizable double bonds in their structure, and contains a photopolymerization initiator, a sensitizer, and other non-reactive substances as necessary. Polymers, organic solvents, waxes, and other additives are readily available in various grades on the market and can be used in the present invention. Also,
It is also possible to add a flame retardant, a conductive material, etc. to the ionizing radiation-curable resin layer 13 to impart functions such as flame retardancy and conductivity. Further, the resin layer 13 is preferably a transparent or semitransparent layer. The ionizing radiation-curable resin layer 13 can be formed by a known method such as gravure coating, roll coating, flow coating, or spray coating. The thickness of the resin layer 13 is 3 μm to 1 mm, particularly 30 to 200 μm.
m is preferred.

Next, the release base material 12 and the uneven pattern forming base material 2 are overlapped with each other through the ionizing radiation curable resin layer 13 and are brought into close contact, and then ionizing radiation 14 is applied from the release base material 12 side.
(Figure 6). Typical examples of ionizing radiation 14 are ultraviolet light and electron beams, but other radiation can also be used. By irradiation with the ionizing radiation vil 14, the ionizing radiation curable resin layer 13 is cured in areas where there is no ionizing radiation shielding pattern 11, and the ionizing radiation curable resin layer 13 remains uncured in areas where the ionizing radiation shielding pattern 11 is present. left alone.

When the release base material 12 is peeled off after irradiation with the ionizing radiation 14, the uncured ionizing radiation-curable resin adheres to the release base material 12 in the uncured portion of the ionizing radiation-curable resin layer 13, and the base material As the resin 12 is peeled off, the adhered portion is removed, and as a result, a recess 6 in which a small amount of uncured ionizing radiation curable resin remains and a convex portion 4 made of the cured ionizing radiation curable resin are formed. As a result, an uneven pattern forming body 1 having an uneven pattern 3 is obtained. Further, when the pattern layer 5 is provided on the base material 12, the pattern layer 5 is transferred and formed on the convex portion 4 by peeling off the base material 12, as shown in FIG.

Further, in the manufacturing method of the present invention, after peeling off the release base material 12, ionizing radiation may be further irradiated to harden the uncured ionizing radiation-curable resin remaining in the recesses 6, but as shown in FIG. A recess may be formed by removing the uncured ionizing radiation curable resin 5a remaining in the recess 6. There are various physical removal methods and chemical removal methods to remove the uncured ionizing radiation curable resin remaining in the recess 6, but one method is to take advantage of the high solubility of the remaining uncured portion in a solvent. It is preferable to employ a chemical removal method in which the uncured ionizing radiation-curable resin is dissolved and removed using an appropriate solvent.

Examples of solvents for dissolving and removing include ester necks such as ethyl acetate and n-butyl acetate; ketones such as methyl ethyl ketone, methyl isobutyl ketone, and cyclohexanone;
There are alcohols such as ethanol, isopropanol, and n-butanol, which are selected and used depending on the type of ionizing radiation-curable resin used. Removal by dissolving with these solvents can be carried out by simply pouring water or dipping, but a more preferable method is to apply the solvent to the formed uneven pattern and then huff polish it using a brush or cotton huffing roller. There is a way.

Further, in the present invention, when the wiping ink layer 7 is provided in the recess 6, the ink layer 7 is applied and formed after the release base material 12 is peeled off. The coating is formed by applying ordinary wiping ink to the entire surface of the uneven pattern 3, and immediately after that, apply the wiping ink to the entire surface of the uneven pattern 3.
This is done by scraping off only the ink present on the second layer with a doctor blade.

Furthermore, in the present invention? After peeling off the release base material 12, a protective layer E (protective layer E) is applied to predetermined locations on the uneven pattern (3). It may also be formed from a curable resin.

In the above example, an ionizing radiation shielding pattern is provided on the release base material side and ionizing radiation is irradiated from the release base material side. However, when the base material for forming the uneven pattern is transparent to ionizing radiation, It is also possible to provide a pattern-forming substrate with an ionizing radiation-shielding pattern and irradiate the ionizing radiation from the uneven pattern-forming substrate side. The ionizing radiation shielding pattern can also be formed on a sheet separate from the release base material and used by overlapping the release base material.

Hereinafter, the present invention will be explained in more detail by giving specific examples.

Example 1 A polyester film (manufactured by Toshiki ■) is used as a release base material, and a UV-shielding white ink (manufactured by Moroboshi Ink ■) is applied to the surface of this release base material.
An abstract pattern was printed using a gravure plate with a plate depth of 60 μm.

On the other hand, a transparent colored ultraviolet curable paint (manufactured by Nippon Paint ■) was applied to one side of a vinyl chloride board (J ¥ 50m) to a thickness of 1.
Flow coating was carried out so that the thickness was 00 μm.

Next, the non-printed surface of the release substrate was placed in contact with the surface coated with the ultraviolet curable paint, and the light was heated for 20 m from the release substrate side into an irradiation device equipped with five ozone-less ultraviolet lamps with an output of 80 W/cm. Irradiation was carried out while passing at a speed of 1/min, and after the irradiation, the release base material was peeled off.

Due to this peeling of the release base material, the UV-curable paint corresponding to the part without the white ink pattern provided on the release base material is cured, forming convex parts with the UV-curable paint, and the part with the white ink pattern is cured. In the corresponding portion, a portion of the uncured ultraviolet curable paint adhered to the release base material and was removed when the release base material was peeled off, forming a recessed portion.

Peeling base material peeling A! Thereafter, the uneven surface was further irradiated with ultraviolet rays under the same conditions as above to cure the uncured ultraviolet curable paint partially remaining in the recesses.

Next, colored ink (manufactured by Showa Ink: W-14) was applied to the uneven surface.
1) was used for wiping painting, and then an ultraviolet curable paint (manufactured by Nippon Paint) was applied to the entire surface using a flow coating method to a thickness of 50 μm and cured.

The resulting concavo-convex pattern formed body has a sharp concave-convex pattern, and the concavities and convexities are filled with colored ink, so that the concavo-convex texture is emphasized. When this formed product was used as a decorative material, it had a rich coating feel (depth).

〔Effect of the invention〕

As explained above, the uneven pattern forming body of the present invention has an uneven pattern that is sharp and has an excellent three-dimensional effect. By providing a layer, an excellent design effect that matches the convex pattern or concave pattern can be obtained, and by providing a protective layer, the concavo-convex pattern can be made to have excellent durability, and moreover, by providing a colored pattern layer, the concavo-convex pattern can be formed. By using a base material for forming an uneven pattern or a base material for forming an uneven pattern having an uneven surface, various design effects can be expressed.

A concavo-convex pattern-formed body having such a good concavo-convex pattern and excellent in design, durability, etc. is particularly useful when used as makeup +A.

Further, in the manufacturing method of the present invention, a base material for forming an uneven pattern and a release base material having an ionizing radiation shielding pattern are stacked together via an ionizing radiation curable resin layer, and ionizing radiation is irradiated, and then the release base material is The peeled and uncured ionizing radiation curable resin is adhered to a peeling base material and removed to form a recessed part, and an uneven pattern consisting of the recessed part and a convex part made of the cured ionizing radiation curable resin is formed. Since a concavo-convex pattern forming body is manufactured, a concavo-convex pattern forming body that is sharp and has an excellent three-dimensional effect can be easily manufactured. Moreover, if the uncured ionizing radiation curable resin remaining in the recesses is left after being cured without being removed, the amount of uncured ionizing radiation curable resin that adheres to the release base material and is removed is not always constant. For example, if a colored layer is provided on the ionizing radiation-curable resin layer coated surface of the base material for forming an uneven pattern, it is possible to form recesses with varying depths. Moreover, it has the effect of being able to form a four-tone pattern with varying colors that are completely in sync with the uneven pattern.

[Brief explanation of the drawing]

FIGS. 1 to 3 are joint cross-sectional views showing examples of the uneven pattern forming body of the present invention, and FIGS. 4 to 8 are joint cross-sectional views showing each step of the manufacturing method of the present invention. 1. Uneven pattern forming body 2. Base material for forming an uneven pattern 3. Uneven pattern 4. Convex portion 5. Pattern layer 6. Convex portion 7. Wiping ink layer 8. Protective layer 9. Colored pattern layer 11...Ionizing radiation shielding pattern 12...Peelable base material 13...Ionizing radiation curable resin layer 14...Ionizing radiation first 1 1-Uneven pattern forming body 2 Uneven pattern forming J, % material 3 Concave and convex pattern 2nd Fig. 4 ・Protrusions 8... Protective layer 5 ・Pattern layer 9 ・It color pattern layer 6 Concave portion 3rd Fig. 7 Wipe/dye ink layer 4 Fig. 12 γ-rippling base material 5 Fig. 6 Figure 141E Radiation Figure 7

Claims (12)

[Claims] (1) An uneven pattern forming body, characterized in that an uneven pattern made of an ionizing radiation curable resin is provided on a substrate for forming an uneven pattern. (2) A decorative material characterized in that a concavo-convex pattern made of an ionizing radiation-curable resin is provided on a base material for forming a concavo-convex pattern. (3) The uneven pattern formed body according to claim 1 or 2, wherein a pattern layer is provided on the convex portions of the uneven pattern. (4) The concavo-convex pattern formed body according to any one of claims 1 to 3, wherein a wiping ink layer is provided in the concave portions of the concavo-convex pattern. (5) The uneven pattern formed body according to any one of claims 1 to 4, wherein a protective layer is provided on the entire surface of the uneven pattern or only on the convex portions. (6) The uneven pattern forming body according to any one of claims 1 to 5, wherein the uneven pattern forming substrate is a substrate for forming an uneven pattern provided with a colored pattern layer. (7) The uneven pattern forming body according to any one of claims 1 to 6, wherein the uneven pattern forming substrate is a substrate for forming an uneven pattern having an uneven surface. (8) A method for manufacturing an uneven pattern formed body, characterized by performing each of the following steps in order. (a) providing an ionizing radiation-shielding pattern on either the front or back surface of an ionizing radiation-transparent release base material whose surface is releasable; (c) a step of curing the ionizing radiation-curable resin layer corresponding to the portion without the ionizing radiation-shielding pattern by irradiating ionizing radiation from the release base material side; (d) A step of peeling off the release base material and removing a portion of the uncured resin of the ionizing radiation curable resin layer by adhering to the release base material. (9) A pattern layer is provided on a release base material, and the pattern layer is transferred and formed on the convex portion of the uneven pattern by peeling the release base material.
The method for manufacturing the uneven pattern formed body described above. (10) The uneven pattern forming body according to claim 8 or 9, wherein the uncured ionizing radiation curable resin remaining on the uneven pattern forming substrate is cured by irradiating ionizing radiation after the release base material is peeled off. Production method. (11) The method for producing an uneven pattern forming body according to claim 8 or 9, wherein after peeling off the release base material, uncured ionizing radiation-curable resin remaining on the uneven pattern forming base material is removed. (12) The method for producing an uneven pattern formed body according to any one of claims 8 to 11, wherein after peeling off the release base material, a protective layer is coated on the entire surface of the uneven pattern or only on the convex portions.