JPS60250986A - Manufacture of rugged decorative material - Google Patents

Abstract

PURPOSE:To obtain relatively easily a decorative material having a rugged pattern according to a pattern, by a method wherein a pattern is formed by using an ink repellent to a topcoating resin and undergoing in-layer cleavage when being heated, and a portion of the ink is removed by adhering it to a heated roll or the like. CONSTITUTION:A surface of a substrate 1 is subjected to an appropriate treatment, as required, and a desired pattern 2 is provided thereon by using an ink comprising a thremosoftening resin undergoing in-layer cleavage when being heated and a liquid repellent. Next, a hardenable resin is applied thereto, and is hardened to provide a resin layer 3. In this case, since the ink layer 2 comprises the liquid repellent which is repellent to the resin, the resin is not adhered to the ink layer 2. Then, a heated roll 5 is brought into contact with the entire surface to cause in-layer cleavage in the ink layer 2, and the ink 4 thus exfoliated is removed by adherig it to the roll 5 to provide the recessed pattern 6, thereby obtaining the rugged decorateive material 7.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a method for producing a textured decorative material. This invention relates to a method of forming a concave pattern by attaching a portion of ink to a hot roll or the like and removing it.

(Prior art) As a method for manufacturing an uneven decorative material having a concave-convex pattern on its surface, the decorative material is produced and then pressed with another mold such as an embossing roll to form a concave pattern, or the repellent pattern is applied to printing ink. Conventionally, a method has been used in which a pattern is created on the surface of a base material using a material mixed with a substance having the following properties, and an overcoat resin applied thereon is repelled to form a concave pattern.

(Problem to be solved by the invention) However, in the former method, it is difficult to form concave portions that match the pattern, and in the latter method, the thicker the top coat, the rounded the corners of the concave portions. It also had the disadvantage that deep unevenness could not be obtained because the pattern would be unsatisfactory.

(Objective) The present invention aims to solve the above-mentioned drawbacks of the prior art, and provides a method for relatively easily manufacturing a decorative material having an uneven pattern that matches the pattern. .

(Means for Solving the Problems) First, as shown in Figure 1, after applying appropriate pretreatment to the surface of the base material (II) as required, we prepared a material that is heat-softening and that can be heated to form a resin layer. The desired pattern (2) is printed on the concave area using the gravure printing method, offset printing method, or screen printing using an ink containing a binder made of a resin that delaminates and a liquid repellent agent that repels the top coat resin. It is formed by a known printing method such as a printing method or a flexo printing method.

Next, a curable resin is applied thereon by any method such as a gravure coating method or a roll coating method, and then cured to form a resin layer (3). At this time, the top coat resin does not adhere to the top of the ink layer, leaving it exposed.

Next, as shown in FIG. 2, a hot roll (5) is brought into contact with the entire surface to cause delamination within the ink layer constituting the pattern (2), and the peeled ink (4) is transferred to the hot roll. (5) and is removed to form a concave pattern (6) to obtain an uneven decorative material (7) as shown in FIG. The temperature of the heat roll may be set according to the thermoplastic resin used. The pattern (
The ink layer of pattern (2) softens and adheres to the surface of the hot roll (5), and the adhesive force between the ink layer of pattern (2) and the hot roll (5) is greater than the internal cohesive force of the ink layer of pattern (2). The ink layer becomes larger and the ink layer peels off within the layer, and the peeled ink adheres to the surface of the hot roll and is removed.

Since the resin layer (3) is a curable resin, it is not affected by the hot roll.

At this time, in order to make the adhesive force between the pattern (3) and the heat roll (5) even stronger, a resin that has a good adhesive force with the pattern (2) when heated was applied to the arbitrary sheet surface. A sheet for resin removal can be interposed.

That is, acrylic, chlorinated rubber, urethane, or other heat-softening resin is applied to the surface of a sheet such as paper, synthetic paper, or synthetic resin film such as polyester film or nylon film, and this is applied to the sheet side. Heat roll (
5), by setting the resin-coated surface facing pattern +21, the peeled ink can be removed more reliably than when using the heat roll (5) alone. Note that a plate-shaped object such as a hot plate may be brought into contact instead of the hot roll.

Substrates (11 include paper, plastic film, cloth, other sheet-like materials, wooden boards such as plywood, inorganic boards such as gypsum board, metal plates such as iron plates, other plate-like materials, or A combination of two or more types can be used.

In addition, the surface of the base material is coated with anchor coat, base coat,
Any pattern etc. can be applied in advance.

The ink constituting the desired pattern (2) uses a binder that is heat-softening and has a resin whose cohesive force is weakened by heat and peels within the resin layer. , polyamide-based, and inks blended with polyamide-based resin and cellulose can be used. As a liquid repellent for imparting liquid repellency to this, silicone-based, fluorine-based resins, and waxes can be used.

The curable resin may be any resin that becomes insoluble and infusible upon curing, such as thermosetting resins, photocurable resins, and electron beam curable resins.

(Function) By bringing a heat roll, etc. into contact with the pattern (2) made of heat-softening ink, the pattern (2) is softened and brought into close contact with the heat roll, etc. or the removal sheet, and the inside of the ink layer of the pattern (2) is softened. A concave pattern can be formed by causing peeling. Portions other than the pattern (2) are not adversely affected by heat due to the curable resin layer (3).

(Effects of the invention) ■ A decorative material having an uneven pattern that matches the pattern can be easily produced.

■Even if the unevenness due to the repelling effect of the liquid repellent is small, sharp unevenness with a large difference in height can be formed by forming depressions corresponding to the volume of the ink that has been peeled off and removed.

(Example) A grain board was printed on thin paper with a basis weight of 23 (1/rn2) using a gravure printing method, and then a polyamide ink mixed with a matting agent and a silicone liquid repellent at 3% was used to print the board. A conduit groove pattern that matches the eye pattern is printed, and then amino alkyd resin is coated on the surface using a gravure coating method.
After applying g/m2 (dry), drying and curing,
When the heat roll was passed between a heat roll with a surface temperature of 160°C and a pressure roll with a pressure of 35°C between the heat roll, with the heat roll in contact with the surface coated with amino alkyd resin, the conduit The groove pattern ink caused intralayer peeling, and the -S adhered to the surface of the hot roll and was removed, yielding a textured decorative material in which the depressions were matte.

[Brief explanation of the drawing]

Fig. 1 shows a state in which a pattern is formed on a base material, a curable resin is applied thereon and cured, and Fig. 2 shows a state in which a hot roll is brought into contact with the surface to form a concave pattern. FIG. 3 is a sectional view showing each of the obtained uneven decorative materials. (11...Base material (2)...Pattern (31...Resin layer (4)...Peeled ink (5)
)...Heat roll (6)...Concave pattern (7)...
Irregular decorative material (8)... Pressure roll patent applicant Kazuo Suzuki, Representative of Toppan Printing Co., Ltd.

Claims (1)

[Claims] (11) Recesses should be formed on the surface of any base material using an ink that repels the top coat resin and uses as a binder a resin that is heat-softening and that delaminates within the resin layer when heated. After printing a desired pattern on the area, and then applying a top coat resin on top of it to form a resin layer on the area where the pattern is not formed due to the ink repellent effect, a hot roll or hot plate is applied to the surface of the pattern. to cause intralayer peeling,
A method for producing an uneven decorative material, characterized in that a concave pattern is formed by attaching the peeled ink to the hot roll or the like and removing it. (2) An ink removal sheet coated with a resin that exhibits good adhesion when heated on an arbitrary sheet surface is interposed between the heated roll and the coated surface facing the pattern surface. Claim No. 11: A method for producing an uneven decorative material according to claim 11.