JPS58175688A - Preparation of decorative material having three-dimensional feeling - Google Patents

Abstract

PURPOSE:To obtain the titled decorative material having the difference in gloss resulting from the difference in a penetration degree into a transparent paint, by a method wherein a penetrable substrate sheet is printed with the spring wood part of a grain pattern by using an ink highly penetrable into the transparent paint and, after the pattern of an antumn wood paste is printed with a non- penetrable ink, the transparent paint is coated as an uppermost layer. CONSTITUTION:After a printing layer 3 is provided all over a penetrable substrate sheet 2, a pattern 4 corresponding to the spring wood part of a grain pattern is formed thereon according to a printing method using an ink composition good in penetrability into a transparent paint. In the next step, a pattern 5 corresponding to the autumn wood part of the grain pattern is formed by printing using an ink composition low in penetrability into the transparent paint to fabricate a decorative sheet 1 which is in turn adhered to a base board 6 through an adhesive layer 7. In addition, the transparent paint 8 is applied to the surface provided with the pattern 5 corresponding to the autumn wood part of the decorative sheet to obtain an objective decorative material having three- dimensional feeling.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for manufacturing a decorative board having a three-dimensional effect.

Traditionally, the method of obtaining a decorative board with a three-dimensional effect was to adjust the gloss of the patterned areas (secondly, the ``gloss matte method'', which makes glossy areas stand out and dull areas recede, is well known). ``Gloss matte method'' is a printing method where the part of the printed pattern is printed by adjusting the gloss of the ink used, or by overlaying the printed pattern with transparent matte paint or transparent glossy paint. Adjusting the luster of a particular printed pattern (manufactured from scratch, many decorative boards
In this case, it is not preferable to position it on the outermost surface of a decorative board with a printed pattern because it cannot prevent abrasion, peeling, or dissolution due to m-agent stains. For this reason, many decorative boards (
：Obviously, a protective layer is formed by applying a transparent paint to the cosmetic paper board (after applying it for two times). Paint! When applied, the gloss that has been carefully adjusted becomes an inherent gloss determined by the transparent paint C2, which is undesirable.For this reason, the transparent paint application 1
However, attempts have been made to ensure that the pre-adjusted gloss does not change. For example, for matting, the particle size of the matting agent added to the ink (2) is increased, and the transparent paint is coated in the normal amount. Application I: Therefore, it has also been proposed to prevent the unevenness caused by a matting agent from being filled in. However, even in the method of applying a matting agent with a large particle size, such a matting agent with a large particle size can cause a problem in the paint. C2 may settle during storage, or when printing using a gravure plate with a shallow plate depth, C2 cells may not be filled with C2 matting agent, which is also undesirable.

As a result of various studies in order to improve the above-mentioned conventional drawbacks, the present inventor used a permeable base sheet as the base sheet of a decorative sheet, and by adjusting the permeability of the transparent paint with a pattern provided on its surface, the transparent paint It has been discovered that there are differences in the degree of penetration of the paint, and a decorative board can be obtained that has a difference in gloss depending on the pattern.

That is, in the present invention, on the surface of a permeable base sheet, a pattern corresponding to the spring material portion C2 of a wood grain pattern with good permeability of the transparent paint described later is printed, and then a pattern corresponding to the spring material part C2 of the wood grain pattern with low permeability of the transparent paint described later is printed. It is characterized in that a pattern corresponding to the material part i2 is formed by printing, and then a transparent paint is applied.

The present invention will be explained in detail below.

FIG. 1 is a schematic cross-sectional view of a decorative paper 1 obtained by a method according to an embodiment of the present invention.

First, the permeable substrate V-) 2 is preferably one with low air permeability, good oil absorption, and excellent printability, such as paper such as transparent paper, no-size paper, vinylon paper, nonwoven fabric, etc. Application 1 of the transparent paint described later: It is preferable that the transparency is improved, and the basis weight (2 is 20t/-~
12 of/d can be used. However, the paper-to-paper strength is better if the basis weight is smaller, and the larger the three-dimensional effect (the better), so 30P/ffl'' to 60t/♂ is preferable. A solid printing layer 6 is provided.The purpose of the solid printing layer is to hide the color of the underlying substrate, and to determine the overall color m of the wood grain pattern. The solid printing layer is coated with a vehicle selected in consideration of adhesion to the base sheet 2 (-1) In order to increase the hiding property, a material with good hiding property, such as titanium white, etc. is added in large quantities. Coloring agent for coloring dyes and pigments, plasticizers, stabilizers, surfactants, waxes and greases, desiccants, auxiliary desiccants, hardeners, emulsifiers, thickeners, fillers, dispersants, dissecting and diluting agents It can be provided by a known coating or printing method using a known coating or ink composition obtained by appropriately adding and kneading ethyl cellulose, ethyl hydroxyethyl cellulose,
Cellulose derivatives such as cellulose acetate (l-), nitrocellulose, 11-acid cellulose, polystyrene, styrene resins such as poly(a-methylstyrene) and styrene copolymer resins, polymethyl methacrylate, polyethyl methacrylate, polyacrylic acid Single or copolymer resins of acrylic or methacrylic resins, such as ethyl and Budel polyacrylate, rosin, rosin-modified maleic acid resins,
Rosin modified phenolic resin, rosin ester resin such as polymerized rosin, polyvinyl acetate resin, coumaron resin, vinyl toluene resin, vinyl chloride resin, polyester resin,
Polyurethane resin, butyral resin, polyamide resin,
One or more camphor trees are selected from among vinyl chloride-vinyl acetate copolymer resins and the like. In addition, known coating or printing methods for the above (2) include gravure coating, roll coating, air knife coating, kiss coating, spray coating, flowing coating, dip coating, spinner coating, wheeler coating, brush coating, and wire barcoding. Examples include coating methods such as flow coating, and printing methods such as gravure printing, gravure offset printing, lithographic offset printing, die lithography, and letterpress printing.

After the solid printing layer 6 is preferably provided on the permeable base sheet 2 as described above, a pattern 4' corresponding to the wood grain portion of the wood grain pattern with good permeability of the transparent paint described later is formed by printing. C2, which prints and forms the pattern 4 of the spring wood part, is a printing method in which a plate is made by an appropriate method such as extracting the spring wood part from the wood grain pattern using a photographic method, and then printed using a wood part pattern board. The printing methods listed above can be used to form the solid printing layer 5, but among them, gravure printing allows endless plate making.

This is preferable because it allows a wide range of selection of printing materials and ink vehicles, and allows for rich gradation expression.

In order to print the pattern 4 on the spring wood part (=The ink composition to be used is one that has good penetration of the transparent paint described later.The vehicle constituting the ink composition is as follows:
The material selected in consideration of the material of the permeable base sheet and the adhesiveness of the transparent paint to the vehicle may be used, but the transparent paint may include amino alkyd resin, nitrocellulose resin, polyurethane resin, polyester resin, acrylic resin, and epoxy resin. 1. When using a vehicle such as a modified melamine resin, the vehicle for the ink composition for printing and forming the pattern on the spring material is a cellulose resin such as nitrocellulose cellulose acetate resin or cellulose acetate resin. It is preferable to use , butyral resins, etc. When these resins are used, the permeability of the transparent paint is good, and when creating an ink composition using these resins as a vehicle, it is possible to compare the pigment content of color pigments or extender pigments. In contrast, if the resin content in the entire ink is reduced, even better permeability can be obtained; for example, the pigment content per 100 parts by weight of the ink composition is 20 to 30 parts by weight,
The vehicle content is preferably 10-15% by weight.

After the pattern 4 of the spring wood part is printed as described above, the winter wood part 5 of the wood grain pattern is printed and formed using an ink composition with low penetrability of transparent paint. The plate is the same as the spring material pattern board (a second plate-made plate can be used, and the printing method is also the same.As for the ink composition with low permeability to the transparent paint, it is possible to use a permeable base sheet and the transparent paint. The vines are selected by taking into account the ease of installation.
If the transparent paint does not penetrate at all, the physical performance of the final decorative board will be insufficient, so it is preferable to use an ink with the same components as the ink used to print and form the pattern on the spring material. However, it is preferable to use an ink containing more vehicle and less pigment than the ink used to print and form the pattern on the spring material.

- As an example, the ingredients are the same as those of the ink composition for the spring material part, and the pigment content is 1 per 100 parts by weight of the ink composition.
The weight ratio is preferably 0 to 20, and the vehicle content is preferably 20 to 50 weight.

The decorative sheet 1 formed as described above is pasted on a substrate 6 (two sheets) as shown in FIG. Gypsum base materials such as pulp cement boards, asbestos cement boards, fiber cement boards such as wood chip cement boards, GRO and concrete, metal foils or sheets of iron, aluminum, copper, etc., composites of each of the above groups, etc. In addition, paperboard, plastic boards, etc. can also be used. Apply C2 adhesive 7 to either or both of the back surface of the decorative V-) or the front surface of the board, and allow an appropriate open time. After settling, press etc. C: Apply more pressure or heat and pressurize and place. The adhesive 7 can be selected from among the permeable base sheet and the substrate material C. For example, when paper such as transparent paper is used and a wood base material is used as the substrate, polyvinyl acetate is used. Emulsion type adhesives such as resins and ethylene/vinyl acetate copolymer resins are preferably used. The above-described application may be performed before or after applying the transparent paint to the surface of the decorative paper.

After pasting the decorative sheet (V-) on the substrate, a transparent paint 8 is applied to the surface of the decorative sheet. As mentioned above, the transparent paint may include amino alkyd resin, nitrocellulose resin, polyurethane resin, polyester resin, acrylic resin, polyester resin, etc. In order to prevent vinyl chloride resin, etc., from abrasion, peeling off of the pattern, dissolution by adhesive E, staining, etc., the entire surface of the decorative sheet is coated twice and dried using a known coating method.The coating method is as described above. It is possible to use the coating method mentioned above as a two-phase technique for providing a solid printing layer.When a transparent paint is applied, the pattern 5 of the winter wood part (in the second case, the penetration of the transparent paint) is shown in Figure 3. Since the C2 transparent paint 8 remains on the surface of the pattern 5 of the winter wood part, it is possible to express the unique luster of the paint. It penetrates into the lower part and forms a surface that conforms to the surface shape of the permeable base sheet, the solid printing layer, or the patterned part of the winter material, so it becomes relatively glossy and disappears. The coating amount is preferably 2 to 7 P/- in the dry state.

The above description has been made based on one embodiment c2 of the method of the present invention, but the present invention also encompasses the following modifications as long as they do not change the gist of the present invention.

B) When providing a solid print layer, provide the solid print layer on the back side of the permeable base sheet. In this case, transparent paper is preferred as the permeable base sheet. When a solid printing layer is provided on the back side of transparent paper, a sense of depth is created by the thickness of the transparent paper.

In order to create a sense of depth, the basis weight is preferably 50 f/- or more. Furthermore, even if it is not transparent paper, if the transparency can be improved by applying a transparent paint, the sense of depth will be improved, although transparent paper is not the case.

(b) The pattern of the winter material part is printed on the surface of the decorative V-), and other printed patterns are provided on the back side (two) as appropriate.

By providing the same depth as in C2 above B) between the pattern of the winter wood part and other patterns, the three-dimensional effect is improved compared to C2.

Examples are given below to more specifically illustrate the present invention.

Example 1 Transparent paper of 1150P/111" (manufactured by Nagoya Pulp■)
A decorative paper was obtained by printing the spring wood part and autumn wood part of the surface 3 with the grain pattern of two cedar trees using each ink having the following composition by a gravure printing method.

Ink for spring wood; solvent: toluene/ethyl acetate/isopropano
The ink solvent for the autumn wood section is the same as that used for ink C2 for the spring wood section.

Next (-The obtained decorative paper was coated with a polyvinyl acetate resin emulsion type adhesive at 45 fP/♂ (when wet) on a plywood board with a thickness of 5 yr. Decorative paper surface (-Apply a top coat of the following composition to a coating amount of 6P/♂ (when dry),
10 using a hot air dryer set at 0-110”C.
After drying for a few minutes, the surface of the autumn wood part (the second part has a gloss,
The surface of the spring wood part has a decorative board whose luster has disappeared.

Top coat paint The solvent is the same as that used for the ink for the spring material.

Example 2 A solid printing layer was provided on the surface of a transparent paper similar to that used in Example 1 by a gravure printing method using an ink for solid printing layer having the following composition.

Ink for peta printing j- The solvent was the same as that of the spring material ink used in Example 1.

Next C Nipeta printing layer surface C2, same as Example 1 (=spring wood part and autumn wood part were printed and formed to create a decorative sheet,
The surface of the second decorative sheet (=A top coat was applied in the same manner as used in Example 1 to obtain a pre-coated decorative sheet in which the surface of the autumn wood part was glossy and the surface of the spring wood part was matte. Ta.

Thereafter, plywood 1 was pasted in the same manner as the decorative sheet was pasted on plywood in Example 1 to obtain a decorative board.

Example 3 Using the same transparent paper and ink as used in Examples 1 and 2, first, the spring wood part and the autumn wood part were printed sequentially on the front side of the transparent paper, and then the back side of the transparent paper (two petals) was printed. A decorative sheet was created by printing.

The obtained decorative sheet was made into a decorative board in the same manner as in Example 1. The resulting decorative board has a solid printing layer underneath the transparent paper.
Because there are two parts, it has a sense of depth.

Example 4 Using the same transparent paper and ink as used in Example 1 and Example 2, print the front side of the transparent paper (the second autumn wood part, and sequentially print the spring wood part and solid printing layer on the back side) Makeup t/-1
It was created. It's 5'.

Decorative Sheet A decorative board was then prepared in the same manner as in Example 1. The obtained decorative board had an effect in which the pattern of the autumn wood part appeared to be floating due to the thickness C2 of the transparent paper, and the glossy surface of the autumn wood part had an even more accentuated unevenness.

[Brief explanation of drawings]

1 to 3 are cross-sectional views showing each step of the method of the present invention. Explanation of symbols 1・・・・・・・・・・・・Makeup V-)2...
...... Permeable substrate V-)6...
・・・・・・・・・・・・ Solid printing layer 4・・・・・・・・・
・・・・・・Spring wood section 5・・・・・・・・・・・・・・・
・Autumn wood section 6・・・・・・・・・・・・Substrate 7・・
・・・・・・・・・・・・Adhesive 8・・・・・・・・・
・・・・・・Transparent paint-＼C 14C.

Claims (4)

[Claims] (1) Permeable base sheet (2) A process of printing and forming a pattern corresponding to the spring wood part of the wood grain pattern using at least an ink composition with good permeability of the transparent paint described below, and an ink composition with low permeability of the transparent paint described below. a step of printing and forming a pattern corresponding to the autumn wood part of the wood grain pattern using a material to create a decorative sheet, and the surface of the obtained decorative sheet on which the pattern corresponding to the autumn wood part C2 is provided. A method for producing a decorative material having a three-dimensional effect, which comprises applying a transparent paint to the surface. (2) At least the side of the decorative sheet on which the printed pattern corresponding to the autumn wood part is placed on the front side (two substrates)
- A method for producing a decorative material having a three-dimensional effect according to claim 11, characterized in that the surface is pasted and then a transparent paint is applied to the surface. (3) A method for producing a decorative material having a three-dimensional effect according to claim (1) or (2), which comprises using transparent paper as the permeable base sheet and providing a solid printing layer on the back side. (4) A method for manufacturing a decorative board having a three-dimensional effect as set forth in claim (3), characterized in that a printing layer with a normal pattern and a solid printing layer are provided on the back side C of transparent paper.