JPS6152798B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an undulating wood grain decorative material and a method for producing the same.

One of the finishing treatments for Japanese woods such as cedar, pine, and cypress is the ``Uzukuri'' process, in which they are polished to remove the soft parts of the spring wood, leaving the hard parts of the winter wood raised. Known in the field of processing.

According to the "curling process", a board is obtained in which the winter wood part protrudes and has a glossy surface, and the spring wood part is shaved and becomes concave and matte.
However, until now, there has been no wood grain decorative material that faithfully reproduces the board obtained through this ``swivel'' process.

The conventional manufacturing technology for undulating wood grain decorative materials involves printing wood grain patterns using glossy ink such as pearl ink, thereby producing printed plywood that reproduces the texture of natural wood. The technique is to print a wood grain pattern on a plywood that has been treated with a base, then top coat it with a matte transparent coating, and then use a glossy transparent paint to match the underlying wood grain pattern to create a wood grain pattern. The only known technology is to produce printed plywood that reproduces the texture found in natural wood by printing on wood (Special Publication No. 4603 of 1983).

However, these known techniques cannot produce a visual three-dimensional effect, cannot produce a tactile three-dimensional effect, and the three-dimensional effect is easily diminished by the unevenness of the composite.
It has some disadvantages, such as the flat surface, which makes it easily scratched, and the flat polished part, which aims to create a three-dimensional effect, which creates a large difference in effect from real natural wood.

There is also a method of foaming a foamed resin in a state where foaming is partially suppressed using foaming suppressing ink to obtain a three-dimensional decorative board with unevenness.
The cost is high, foaming is uneven, the thickness of the convex parts tends to change during storage after plywood lamination, and the color effect tends to deteriorate when foaming.
It has drawbacks such as poor transparency.

As a result of research on zigzag-like wood grain decorative materials, the present inventor printed and formed an overlay ink film by a gravure printing method using a gravure printing ink containing vinyl chloride sol as a binder, and then heated it to form an overlay ink film. By gelling the printing ink of the printing film and polishing the surface, it is possible to form glossy or built-up parts, and by applying this technology, it is possible to form the printed built-up parts of winter material parts. They discovered this and completed the present invention based on this fact.

That is, the gist of the first invention is: A winter wood part having a base coat layer and a wood grain pattern printed part in this order on a base material, and having a glossy surface in an area corresponding to the winter wood part of the wood grain pattern printed part. An undulating wood grain decorative material, characterized in that it has a built-up printed area, and further has a gloss transparent overcoat layer including the wood grain pattern printed area and the winter wood area built-up printed area, The invention has a base coat layer and a wood grain pattern printed part in this order on a base material, and a winter wood part printed part with a glossy surface in an area corresponding to the winter wood part of the wood grain pattern printed part. , a gloss transparent overcoat layer is provided on the entire surface including the wood grain pattern printed part and the winter wood part fill-up printed part, and pine ink is applied to the area corresponding to the spring wood part of the wood grain pattern printed part on the gloss transparent overcoat layer. The third aspect of the invention is to form a base coat layer on a base material, and then apply a wood grain pattern to the decorative material. A printed part was formed, and a built-up ink film was formed by overlay printing by a gravure printing method using a gravure printing ink containing vinyl chloride sol as a binder in the area corresponding to the winter wood part of the wood grain pattern printed area. After that, a gloss transparent overcoat layer is formed on the entire surface, and then the entire surface is heated to polish the surface area of the gloss transparent overcoat layer on the built-up ink film, thereby producing a winter wood part with a glossy surface. A method for producing a decorative wood grain material with an undulating pattern, characterized by forming a raised printed part. 〓The gist of the fourth invention is: 〓A base coat layer is formed on a base material, and then a wood grain pattern printed portion is formed, and a region corresponding to the winter wood portion of the wood grain pattern printed portion is coated with vinyl chloride sol. Using a gravure printing ink as a binder, a build-up ink film is formed by overlay printing by a gravure printing method, and then a gloss transparent overcoat layer is formed on the entire surface by a normal coating method, and the gloss On the transparent overcoat layer, a spring material part printed part is formed using pine ink in an area corresponding to the spring part of the lower layer woodgrain pattern printed part by a general printing method, and then the whole is heated to form the above-mentioned overlay. Uzu characterized by forming an overlay printed part of a winter material part with a glossy surface by gelling the printing ink in the ink film and polishing the surface area of the gloss transparent overcoat layer on the overlay ink film. A method for manufacturing decorative wood grain materials. 〓 is.

Hereinafter, the present invention will be explained in detail with reference to the drawings.

FIG. 1 shows an undulating wood grain decorative material 8 of the first invention, which has a base coat layer 2 and a wood grain pattern printed portion 3 in this order on a base material 1, and a wood grain pattern is formed by these. There is. A region corresponding to the winter wood part of the wood grain pattern printed part 3 has a winter wood part built-up printed part 5 with a glossy surface, and a gloss transparent overcoat layer 6 is provided on the entire surface thereof.

FIG. 2 is a plan view of the above-mentioned undulating wood grain decorative material.

Next, materials and manufacturing methods for forming each layer of the undulating wood grain decorative material of the first invention will be described.

The base material may be paper, a resin film such as polyester, polyphenylene oxide, aromatic polyamide, tetrafluoroethylene resin, polyimide, etc. with good heat resistance, various metal plates or foils, various types of wood or plywood, etc. Can be used.

The base material 1 must be able to withstand high temperatures during heating and drying after printing the thickened portion of the winter material, and must be able to withstand shrinkage, deformation, etc.

The base coat layer 2 is formed by coating the base material with an ink or coating composition containing vinyl chloride/vinyl acetate copolymer as a binder by a conventional coating method such as roll coating, gravure coating, bar coating, or air knife coating. It is coated on top and formed as shown in the third figure.

Next, as shown in Figure 4, a coloring agent such as a dye or pigment is added to the vinyl chloride-vinyl acetate copolymer vehicle on the base coat layer 2, and furthermore, a coloring agent such as a plasticizer, stabilizer, wax/grease, desiccant, etc. is added to the base coat layer 2. Using an ink or coating composition, etc., which is obtained by adding optionally known additives such as auxiliary drying agents, curing agents, thickeners, dispersants, fillers, etc., and sufficiently kneading with solvents, diluents, etc. The woodgrain pattern printed portion 3 is formed by printing using general printing methods such as , gravure offset, and offset gravure.

Transparency is required for the wood grain pattern printed portion 3 for quality reasons, so when adjusting the printing ink for forming the wood grain pattern printed portion, it is desirable to select and use a transparent pigment as the pigment used.

The winter material part overlay printing part 6 is a gelatinized overlay printing film using gravure printing ink using vinyl chloride sol as a binder. As shown in Figure 5, the area corresponding to the winter wood part of the wood grain pattern printing part 3 is printed with a 50μ to 150μ diameter by gravure printing method using a gravure printing ink containing vinyl chloride sol as a binder.
A build-up ink film 4 of vinyl chloride sol ink for the winter material part is formed by overlay printing to a thickness of μ, and is gelled in a later step.

The overlay printing part of the winter wood part shown above is made of hard gelled vinyl chloride resin, so even when laminated to plywood, the unevenness will not disappear, creating a decorative board with a three-dimensional and realistic feel. However, the thickness will not decrease even if it is subjected to a cumulative load after being laminated to plywood. In addition, softening and blocking of the ink layer are also observed during the process of actual use.

Screen line count 20/inch to 100/i as a gravure printing plate for forming overlay printing parts on winter materials.
The plate is made using screens such as nch line screen, grain screen, spiral screen, parallel screen, etc. After plate making, it is further corroded to a corrosion depth of 150 mm.
It is necessary to use a plate that is higher than μ,
More specifically, it is desirable that the corrosion depth is about 150μ to 400μ. If the depth is less than 150μ, the build-up effect will be insufficient, and if the depth is more than 400μ, it will be difficult to print a sufficiently sharp pattern.

In this way, when using a plate with a high depth, there is an important relationship between the shape of the corrosion cell, printability, and build-up effect, and the ratio of the cell width to the bank width is 1:1 to 4:1. , a gravure printing plate with a cell width to depth ratio of 2:1 to 5:1 is most suitable. If the ratio of the cell width to the bank width is 4:1 or more, the pattern will lack sharpness,
On the other hand, if the ratio is less than 1:1, the feeling of thickening will decrease.
Furthermore, when the ratio of the cell opening to the depth is 5 or more, the ink transferability is good, but the transferred ink tends to flow, and conversely, when the ratio is 2 or less, the ink transferability tends to be insufficient. .

It is necessary to use an ink composition with a high solid content and a low volatile content so that sufficient volume can be maintained even after printing dries for the ink composition used to form the overlay printing part of the winter wood part. The composition is as follows: 1 using vinyl chloride sol as a binder.
The ink compositions illustrated in the composition examples are most suitable.

Vinyl chloride paste resin 100 parts Dioctyl phthalate 60 parts Diaryl phthalate 10 parts Calcium carbonate 10 parts Titanium oxide 30 parts Stabilizer 3 parts The above ink composition may contain a colored pigment, in which case a transparent pigment It is preferable to use By using the above-mentioned ink composition containing a colored pigment, it is possible to form a winter material part overlay printed part having an amber-colored transparency.

In addition, it is also possible to express depth by forming the overlay printing part of the winter wood part in multiple layers.

Next, as shown in Figure 6, a transparent resin composition containing, for example, a vinyl chloride/vinyl acetate copolymer binder as the main component, necessary additives etc. added thereto, and thoroughly kneaded with a solvent etc. is coated on the entire surface, for example, as shown in Figure 6. The gloss transparent overcoat layer 6 is formed by coating using a conventional coating method such as roll coating, gravure coating, bar coating, air knife coating, flow coating, dip coating, or spray coating. The gloss transparent overcoat layer 6 is provided to protect the surface of the decorative material and to create a difference in gloss between the winter wood part and the spring wood part. Thereafter, as shown in Figure 7, heating is performed with hot air 10 to gel the printing ink of the build-up ink film 4 and to polish the surface area of the gloss transparent overcoat layer on the build-up ink film. By forming the glossy surface 7, the undulating wood grain decorative material shown in the first figure can be obtained.

Next, the undulating wood grain decorative material of the second invention and the method for producing the same will be explained.

Figure 8 shows the undulating wood grain decorative material 1 of the second invention.
8, a base coat layer 12, a wood grain pattern printed area 13, a winter wood part overlay printed area 15, and a gloss transparent overcoat layer 16 are formed on a base material 11.
It is the same as that of the first invention shown in FIG. It is different in that it has a spring material part printed part 18 which is printed using the spring material part.

In the zigzag-like wood grain decorative material shown in Figure 8, the base material, base coat layer, wood grain pattern printed part, winter wood part fill-up printed part, and gloss transparent overcoat layer are made of the zigzag wood grain decorative material shown in Figure 1. and as described in the explanation regarding its manufacturing method.

The spring wood part printed part 18 formed in the area corresponding to the spring wood part of the wood grain pattern printed part on the gloss transparent overcoat layer 17 is made by applying a matte ink to a binder such as vinyl chloride-vinyl acetate copolymer as pine ink. Extender pigments are added to plasticizers, slip agents, waxes, greases, desiccants, thickeners,
An ink composition prepared by adding a dispersant etc. optionally and sufficiently kneading with a solvent, diluent, etc., or an extender pigment for matting added to a binder such as vinyl chloride-vinyl acetate copolymer, and further colored. Pigments are added to plasticizers, slip agents, waxes, greases,
Printing can be performed using an ink composition sufficiently kneaded with a desiccant, a thickener, a dispersant, etc.

The manufacturing method of the zigzag-like wood grain decorative material shown in Figure 8 can be carried out in accordance with the manufacturing method of the zigzag-like wood grain decorative material shown in Figure 1, and the steps up to the formation of the gloss transparent overcoat layer are as shown in Figure 1. As described in the explanation of the manufacturing method of the undulating wood grain decorative material, except that the gloss transparent overcoat layer 1
Following the formation of step 7, a printed spring material part 18 is formed on the gloss transparent overcoat layer 17 as shown in FIG. 9, and then heated with hot air 10 as shown in FIG. 15 in that the printing ink 15 is gelatinized and the surface area of the gloss transparent overcoat layer on the build-up ink coating is polished to form a glossy surface 17.

In the undulating wood grain decorative material of the first aspect of the present invention, the base material has a wood grain pattern, and the winter wood part printed portion is printed in an area corresponding to the winter wood part of the wood grain pattern. It has a gloss transparent overcoat layer on the entire upper surface, and a glossy surface is formed on the surface area of the gloss transparent overcoat layer on the overprinted part of the winter material part, so it gives a visually three-dimensional effect. rich,
It has a three-dimensional feel to the touch, and there is a difference in gloss between the winter wood and spring wood, so the polished and polished winter wood part and the shaved and matte part in the "Uzukuri process" The condition of the spring wood section is realistically expressed, and as a result, it is possible to obtain a decorative effect rich in wood texture and realism that cannot be obtained with conventional decorative materials.

In addition, in addition to the structure of the first invention, the undulating wood grain decorative material of the second invention has a pine spring wood part printed part, so it has the undulating wood grain of the invention shown in FIG. Not only does it have the effect of a decorative material, but it also has a particularly matte spring wood part printed part, so there is a noticeable difference in gloss between the winter wood part and the spring wood part.

The curving wood grain decorative materials of the first and second inventions described above can be effectively used as decorative materials in all fields such as ceiling materials, wall materials, floor materials, furniture, and surface materials for cabinets for light electrical equipment. .

The present invention can also be applied to Western wood grain decorative materials such as WN (walnut), teak, and rosewood.

In the manufacturing method for manufacturing the undulating wood grain decorative material of the first invention, the manufacturing process from formation of the base coat layer → formation of the wood grain pattern printing area → overprinting of the winter wood area → overprinting is also carried out. In the second invention, the printing process of the spring material is further carried out in-line, and then heated with hot air to produce the winter material with a glossy surface and the spring material in a shaved and matte state. It is possible to easily produce an undulating wood grain decorative material in which spring wood parts are realistically expressed.

Further, the sheet-shaped decorative material obtained by the manufacturing method of the present invention can be continuously rolled up, and therefore, the rolled-up sheet-shaped decorative material can be unwound and continuously laminated onto plywood. I can do it.

Next, the present invention will be specifically explained with reference to Examples.

Example 1 A base coat layer was formed by printing on the entire surface of 23 g/m ² thin paper by gravure printing using an ink containing vinyl chloride-vinyl acetate copolymer as a binder.

Next, a wood grain pattern was formed on the base coat layer by gravure printing using an ink containing vinyl chloride/vinyl acetate copolymer as a binder.

Next, apply overlay printing of about 100 μm using gravure printing using gravure ink with vinyl chloride sol as a binder in the area corresponding to the winter wood part of the wood grain, and apply overlay ink of vinyl chloride sol ink on each wood part. A film was formed. (The plate has a corrosion depth of 250 μm, cell width/bank width = 3, cell width/depth = 3) Next, an ink containing thermosetting urethane made of acrylic polyol isocyanate as a binder and 6% silica added as a matting agent was applied. An overcoat layer was formed by printing on the entire surface using a gravure printing method.

Next, an ink containing thermosetting urethane made of acrylic polyol isocyanate as a binder, 9% silica as a matting agent, and colored pigments was applied to the area corresponding to the spring wood part of the wood grain. It was printed using a gravure printing method to form a spring agent pattern. (The gloss disappears from the overcoat layer.) Next, the sheet was heated at 210° C. for 1 minute to gel the overlay ink and polish it.

This decorative sheet was then attached to 4 mm thick plywood to produce decorative plywood.

This decorative material has a woodgrain pattern with different luster in the spring and winter wood areas, and the build-up of the winter wood areas creates a realistic three-dimensional space and wood texture.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of the undulating wood grain decorative material of the first invention, Fig. 2 is a plan view of the decorative material, and Figs. 3 to 7 are the undulating wood grain decorative material of the first invention. A sectional view of the manufacturing process, FIG. 8 is a sectional view of the undulating wood grain decorative material of the second invention, and FIGS. 9 and 10 are sectional views of the manufacturing process of the undulating wood grain decorative material of the second invention. It is. 1, 11... Base material, 2, 12... Base coat layer, 3, 13... Wood grain pattern printing section, 4, 14...
Overlay printed film, 5, 15... Vinyl chloride sol winter material part overlay printed area, 6, 16... Gloss transparent overcoat layer, 7, 17... Glossy surface, 8...
Spring Material Department, 18...Spring Material Department Printing Department.

Claims (1)

[Scope of Claims] 1. A base coat layer and a woodgrain pattern printed area in this order on a base material, and a winter wood part overlay printed area with a glossy surface in an area corresponding to the winter wood area of the woodgrain pattern printed area. An undulating wood grain decorative material, further comprising a gloss transparent overcoat layer on the entire surface including the wood grain pattern printed area and the winter wood part fill-up printed area. 2. The undulating wood grain decorative material according to claim 1, characterized in that the overlay printed portion of the winter wood part is a gelled overlay printed film formed by gravure printing ink using vinyl chloride sol as a binder. . 3 having a base coat layer and a wood grain pattern printed part on the base material in this order, having a winter wood part fill-up printed part with a glossy surface in an area corresponding to the winter wood part of the wood grain pattern printing part, and having a winter wood part printed part with a glossy surface; A gloss transparent overcoat layer is provided on the entire surface including the pattern printing area and the winter wood part fill-up printing area, and the area corresponding to the spring wood part of the wood grain pattern printing area on the gloss transparent overcoat layer is formed with pine ink. A decorative wood grain material with an undulating pattern, characterized by having a spring wood part printed part. 4. The undulating wood grain decorative material according to claim 3, characterized in that the overlay printed part of the winter material part is a gelled overlay printed film formed by gravure printing ink using vinyl chloride sol as a binder. . 5 Form a base coat layer on the base material, then form a wood grain pattern printed area, and perform a gravure printing method using a gravure printing ink containing vinyl chloride sol as a binder in the area corresponding to the winter wood area of the wood grain pattern printed area. After overlay printing is performed to form an overlay ink film, a gloss transparent overcoat layer is formed on the entire surface, and then the entire surface is heated to reduce the surface area of the gloss transparent overcoat layer on the overlay ink film. A method for producing a decorative wood grain material with an undulating pattern, characterized by forming a printed part of a winter wood part with a glossy surface by polishing. 6 When forming the winter material part overlay printing part, the corrosion depth is 150 or more as a gravure printing plate.
6. The method for producing a decorative wood grain material according to claim 5, characterized in that a material having a grain size of 400 microns is used. 7. When forming the printed overlay of the winter material part, as a gravure printing plate, the ratio of the cell frontage to the bank width is 1 or more and 4 or less, and the ratio of the cell frontage to the depth is 2 or more and 5 or less. 7. A method for producing a decorative wood grain material with an undulating texture according to claim 5 or 6, wherein 8 Form a base coat layer on the base material, then form a wood grain pattern printed part, and perform gravure printing on the area corresponding to the winter wood part of the wood grain pattern printed part using a gravure printing ink containing vinyl chloride sol as a binder. After forming an overlay ink film by overlay printing using a method, a gloss transparent overcoat layer is formed on the entire surface by a conventional coating method, and a wood grain pattern of the lower layer is printed on the gloss transparent overcoat layer. A spring material part printed part is formed by a general printing method using pine ink in an area corresponding to the spring material part of the part, and then the whole is heated to gel the printing ink in the overlay ink film and to ink the overlay ink. A method for producing an undulating wood grain decorative material, characterized in that a surface area of a gloss transparent overcoat layer on a film is polished to form a winter wood part overlay printed part with a glossy surface. 9 When forming the winter material part overlay printing part, the corrosion depth is 150 or more as a gravure printing plate.
9. The method for producing a decorative wood grain material according to claim 8, characterized in that a material having a grain size of 400 microns is used. 10 When forming the printed overlay of the winter material part, as a gravure printing plate, the ratio of the cell frontage to the bank width is 1 or more and 4 or less, and the ratio of the cell frontage to the depth is 2 or more and 5 or less. 10. A method for producing a decorative wood-grained material according to claim 8 or 9, characterized in that the method uses a wood-grained decorative material.