JP3098586B2 - Decorative sheet with concealment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative sheet which uses a synthetic resin sheet or paper having no or little concealing performance as a decorative base sheet, and has a high grain design. With a printing layer, and the shine of wood related to the wood pattern picture printing layer has appeared,
Moreover, the present invention provides a decorative sheet to which an excellent concealing performance is added and which can be supplied at a low cost.

[0002]

2. Description of the Related Art In a decorative sheet adhered to a surface of a base material such as a building material or furniture for the purpose of decoration or surface protection, in particular, the state of the surface of an object to which the decorative sheet is adhered can be changed through the decorative sheet. A decorative sheet having concealment properties is used to prevent the decorative sheet from being viewed from the outside, thereby obtaining the original design characteristics of the decorative sheet.

For this reason, when a synthetic resin sheet or paper having no concealing performance is used as a decorative base sheet, (1) a 50-200 μm thick concealable vinyl chloride resin sheet is used. After printing the woodgrain pattern, a vinyl chloride resin sheet having the woodgrain pattern and another transparent vinyl chloride resin sheet are stuck together using an embossed version of a wood grain conduit pattern, and a transparent vinyl chloride resin sheet is attached. A decorative sheet obtained by a so-called doubling embossing method in which embossed recesses of a wood grain conduit pattern are formed on the surface of (2); (2) a transparent vinyl chloride resin sheet; Solid printing layer and white solid printing layer with printing ink containing white pigment are sequentially formed, and fine embossing is performed on the white solid printing layer surface. (3) After sequentially forming a wood-grained pattern printing layer and a glittering solid printing layer with a printing ink containing a pearl pigment on a transparent vinyl chloride resin sheet, this is separately manufactured. And a decorative sheet obtained by laminating with a colored vinyl chloride resin sheet by a dry laminating method.

[0004]

However, among the aforementioned decorative sheets having a concealing property (1), the above-mentioned conventional concealing decorative sheets exhibit a three-dimensional effect due to a depth and a colored vinyl chloride resin sheet for obtaining the concealing property. Since it requires two types of vinyl chloride resin sheets, a transparent vinyl chloride resin sheet and
The price of the resulting decorative sheet is inevitable. In addition, the decorative sheet of (2) utilizes the concealing property of the white solid printing layer with the printing ink containing the white pigment, so the concealing performance is not sufficient, and the decorative sheet is attached to, for example, plywood. In such a case, it is not possible to completely hide the color tone difference, the joints and the like of the plywood, and it is necessary to manage the surface of the object to which the decorative sheet is attached. Further, since the decorative sheet of (3) uses two kinds of vinyl chloride resin sheets as in the case of the decorative sheet of (1), there is a disadvantage that the price of the decorative sheet rises.

On the other hand, the present invention provides a decorative sheet having a wood-grained pattern print layer having excellent design characteristics, a high degree of concealment performance, and which can be supplied at a low cost.

[0006]

Means for Solving the Problems The decorative sheet having concealing properties of the present invention comprises a decorative substrate sheet, printed on one side of a decorative sheet, which includes a wood-grained pattern printing layer and a pearl pigment, as viewed from the surface side of the decorative sheet. A first concealing layer consisting of a brilliant printing layer made of an ink, a white solid printing layer made of a printing ink containing a white pigment, and a second concealing layer consisting of a metallic solid printing layer made of a printing ink containing a metal powder. The decorative sheet is a decorative sheet that is sequentially formed, and has an embossed pattern of linear grooves on the surface of a picture print layer having a wood grain pattern.

In the decorative sheet having the concealing property of the present invention having the above-mentioned structure, when the decorative base sheet is transparent, the decorative base sheet may be on the surface layer side of the decorative sheet or on the back surface layer. You may be on the side. Also,
The embossed pattern of the linear grooves appearing on the surface of the wood pattern print layer does not necessarily need to be the embossed pattern directly applied to the surface of the picture layer, and the surface of the wood pattern print layer is not necessarily embossed. What is necessary is that it is deformed into an uneven shape by the embossed pattern of the linear groove.

[0008] In the decorative sheet having concealing properties of the present invention, decorative base sheets having no concealing performance or those having small concealing performance among those conventionally used as decorative base sheets, for example, having a thickness of 25 Synthetic resin sheets such as vinyl chloride resin sheets, polyester resin sheets, and polyolefin resin sheets of about .about.300 .mu.m, papers such as thin paper, woodfree paper, gypsum board paper, kraft paper, Japanese paper, and nonwoven fabrics are used.

The wood grain pattern print layer is formed by gravure printing, silk screen printing, transfer printing, etc., using a printing ink using a known binder resin such as a conventional salt / vinyl acetate, acrylic, or cellulose resin. Is done.

The glittering printing layer made of a printing ink containing a pearl pigment is entirely or partially formed so as to form a lower layer of a wood-grained pattern printing layer when viewed from the surface side of the decorative sheet. It is formed and acts to improve the design characteristics of the wood-grained pattern print layer. The brilliant print layer is formed of, for example, a salt containing 10 to 30% by weight of a so-called pearl pigment composed of titanium oxide or iron oxide baked on the inner part of a shell, crushed pearl, or mica fine particles. -It is formed as a printing layer by gravure printing, silk screen printing, transfer printing or the like using a printing ink composed of a kneaded material of a vinyl acetate resin.

The first concealing layer comprising a white solid printing layer is a salt containing a white concealing pigment such as titanium oxide, zinc white or antimony oxide in an amount of about 10 to 20% by weight.
Gravure printing using an ink composed of a kneaded material of a known resin such as a vinyl acetate resin, an acrylic resin, or a cellulose resin, or a colored ink formed by adding a small amount of another pigment or dye to the kneaded material. , As a solid printing layer by silk screen printing, transfer printing or the like. In the case of gravure printing, it is preferable to use a plate having a plate depth of about 35 to 60 μ.

[0012] The second concealing layer composed of a metallic solid printing layer is, for example, about 10 to 30% by weight of aluminum,
Solid printing layer by gravure printing, silk screen printing, transfer printing, etc., using a salt / vinyl acetate kneaded material containing a metal powder such as brass or a colored ink obtained by adding a small amount of another pigment to the kneaded material. Is obtained as It is preferable that the metal powder has a particle size of about 5 to 50 μm,
In particular, scaly particles are preferred because an effect excellent in hiding performance can be obtained.

[0013] The embossed pattern of the line-shaped grooves appearing on the surface of the wood-grained pattern printing layer on the decorative sheet has a depth of 3 to 15 µ by a precision line drawing, and a width of the concave portion and the convex portion of 0.1.
It has an embossed pattern of about 100 μm, and has an effect of expressing the luster of wood in relation to a pattern printing layer with a grain pattern.

The embossed pattern of the linear groove suitable for expressing the luster of the wood is a wavy linear groove, for example, a combination of portions in which a large number of wavy curves such as sine waves are arranged in parallel. Is used. In particular, when the running direction of the curve forming the wavy linear groove (eg, the X-axis direction in the case of the curve of Y = sinX) is substantially perpendicular to the running direction of the grain pattern, the decorative sheet is formed. The shift in gloss when the viewer's line of sight is shifted is very similar to the shift in gloss received from natural wood, especially from straight-grained wood, resulting in a high quality decorative sheet.

The embossed pattern of the linear groove may be such that the surface of the pattern print layer of the wood grain pattern has an uneven surface formed by the embossed pattern of the linear groove, and the embossed surface of the embossed pattern of the linear groove is not necessarily required. Needless to say, it does not have to be the surface of the pattern printing layer having a wood pattern.

That is, when the decorative base sheet is on the surface layer side of the decorative sheet, the embossed pattern of the linear grooves is formed on the back surface of the decorative base sheet, and then a predetermined grain is formed on the formed surface. The pattern print layer, the glitter print layer, the first concealing layer and the second concealment layer may be sequentially formed, or the predetermined grain pattern print layer and the glitter print layer may be formed on the back surface of the decorative base sheet. After the first concealing layer and the second concealing layer are sequentially formed, the embossed pattern of the linear grooves may be formed on the surface of the second concealing layer. Irregularities due to the embossed pattern of the groove can appear.

In the case where the decorative base sheet is on the back layer side of the decorative sheet, the embossed pattern of the linear grooves is formed on the surface of the decorative base sheet, and then the predetermined first concealing layer, (2) The concealing layer, the brilliant print layer, and the woodgrain pattern print layer may be sequentially formed, or a predetermined first concealment layer, second concealment layer, and brilliant print layer may be formed on the surface of the decorative base sheet. , And after sequentially forming the wood-grained pattern printing layer, even if the embossed pattern of the linear groove is formed on the wood-grained pattern printing layer surface, The unevenness due to the embossed pattern of the groove can appear.

The decorative sheet having concealing properties according to the present invention functions as a surface decoration of various base materials by being laminated and adhered to various base materials. , Wood base material such as particle board, iron plate,
Adhering to an aluminum plate, a metal base material such as a vinyl chloride resin laminated steel plate, a resin base material made of a synthetic resin plate made of an acrylic resin, an ABS resin or the like with an adhesive, or laminating by heat fusion Further, the resin is used as a surface decorative sheet of various base materials by performing injection molding or extrusion forming of a resin and simultaneously laminating the molded body.

[0019]

The decorative sheet having concealing properties according to the present invention comprises a first concealing layer comprising a white solid printing layer made of a printing ink containing a white pigment via a glittering printing layer under a wood pattern printing layer. And a second concealing layer composed of a metallic solid printing layer made of a printing ink containing a metal powder, and a very excellent concealing action is provided by the synergistic effect of the first concealing layer and the second concealing layer. Is done.

Therefore, when the decorative sheet of the present invention is adhered to, for example, plywood, the color difference of the plywood, the joints, and the like can be completely hidden, so that the surface of the object to which the decorative sheet is adhered can be managed. Is not required, and the process of manufacturing the decorative board is simplified.

In the decorative sheet having concealing properties of the present invention, a glitter printing layer made of a printing ink containing a pearl pigment is formed under a wood-grain pattern printing layer.
Due to the presence of the glitter print layer, the design of the wood pattern print layer becomes high.

Further, in the decorative sheet having concealing properties of the present invention, the embossed pattern of the linear groove appears on the surface of the wood-grained pattern printing layer. The shine of the lumber is expressed.

[0023]

EXAMPLES The concrete structure of the decorative sheet of the present invention will be described below based on production examples.

Example 1 In FIG. 1, 23 parts of plasticizer, thickness 0.15 mm
Pattern printing similar to a wood grain pattern of oak by gravure printing of three colors of printing ink using vinyl chloride resin as a vehicle, on the back surface of the decorative base sheet 12 made of clear vinyl chloride resin film "W500: Riken Vinyl Industry" Tier 1
After the formation of the pattern printing layers 13, 13,.
The brilliant print layer 19 of gravure solid printing was formed on the surface with a kneading ink of a salt / vinyl acetate resin containing 20% by weight of a 5-30 μm pearl pigment.

Subsequently, with respect to the glitter print layer 19,
By performing solid printing on the entire surface using a kneading ink of a salt / vinyl acetate resin containing 20% by weight of a white pigment and a small amount of red, yellow, and black pigments and a gravure printing plate having a plate depth of 60μ. The first concealing layer 14 was formed.

Further, a salt / vinyl acetate resin containing 20% by weight of an aluminum powder having a particle size of 10 to 35 μm and a small amount of a golden colored powder with respect to the surface of the first concealing layer 14 composed of the white solid printing layer. The second concealing layer 15 composed of a metallic solid printing layer is formed by performing solid printing on the entire surface using a kneading ink of (1) and a gravure printing plate having a plate depth of 60 μ.
Was formed.

Thereafter, embossing is performed on the surface of the second concealing layer 15 by an embossing roll provided with a pattern of a group of parallel sine waves having a concave portion having a depth of 10 μ and a concave portion and a convex portion having a width of 15 μ. At a heating temperature of 160 ° C. and a running speed of the sheet of 10 m / min. The embossed recesses 16, 16,...
To form an embossed pattern of parallel grooves on the surface of the wood-grained pattern printing layers 13 and 13 described above.

Further, on the surface of the decorative base material sheet 12, a gloss adjusting layer 18 composed of a full-print printing layer made of urethane ink and conduit pattern layers 20, 20 ... made of urethane ink containing a matting agent. And were sequentially formed to obtain a decorative sheet having a concealing property indicated by reference numeral 11.

The decorative sheet 11 clearly shows a three-dimensional effect due to a gloss mat effect of a gloss effect by the gloss adjusting layer 18 and a mat effect by the conduit pattern layer 20, and furthermore, an illuminance similar to that of natural wood. , And very high design characteristics were obtained.

[0030]

The decorative sheet having concealing properties of the present invention comprises:
A printing ink containing a metal powder and a first concealing layer composed of a white solid printing layer sequentially formed with a concealing action in the decorative sheet via a brilliant printing layer below a wood-grained pattern printing layer. And the second concealing layer consisting of a metallic solid printing layer by
It can be supplied at a lower cost compared to a decorative sheet to which another concealing sheet is stuck.

In the decorative sheet having concealing properties of the present invention, a wood grain pattern print layer is formed via a glitter print layer made of a printing ink containing a pearl pigment. By virtue of its presence, it becomes one having a pattern print layer of a wood grain pattern having high design properties.

Further, in the decorative sheet having concealing properties of the present invention, since the embossed pattern of the linear groove appears on the surface of the wood pattern print layer, the wood related to the wood pattern print layer is exposed. The shine is expressed.

[Brief description of the drawings]

FIG. 1 is a cross-sectional end view schematically showing a decorative sheet having concealing properties according to one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Decorative sheet having concealing property 12 Decorative base sheet 13 Picture printing layer 14 First concealing layer 15 Second concealing layer 16 Embossed concave part of linear line groove 18 Gloss adjusting layer 19 Bright printing layer 20 Conduit pattern layer

Claims (1)

(57) [Claims] 1. A decorative printing sheet having a wood grain pattern, a glittering printing layer made of a printing ink containing a pearl pigment, and a printing ink containing a white pigment, on one side of a decorative base sheet, as viewed from the surface side of the decorative sheet. A decorative sheet, in which a first concealing layer consisting of a white solid printing printing layer according to the present invention and a second concealing layer consisting of a metallic solid printing printing layer made of a printing ink containing metal powder are sequentially formed, and having a woodgrain pattern. A decorative sheet having a concealing property, characterized in that an embossed pattern of linear grooves appears on the surface of a picture printing layer.