JPH08156217A - Decorative material - Google Patents

Abstract

PURPOSE: To bond a paper type decorative sheet bondable along an uneven curved surface of every shape by bonding a paper type base material layer and two tissue papers through an extrusion coating layer of a thermoplastic resin. CONSTITUTION: A decorative plate 1 is constituted by bonding a paper type decorative sheet 4 formed by successively laminating a printing layer 6 and a topcoat layer 7 to a paper type base material layer 5 to the surface of a pillar-shaped base material 2 through an adhesive layer 3. In this case, the paper type decorative sheet 4 composed of the paper type base material layer 5 wherein two tissue papers excellent in tensile force and having buffering properties are bonded by an extrusion coating layer of a thermoplastic resin is bonded to the surface of the pillar-shaped base material 2 through the adhesive layer 3. The topcoat layer 7 applied to the surface of the printing layer 6 is provided for the surface function of the decorative material and the adjustment of glossiness and suitably composed of a two-pack type curable urethane resin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative material to which a paper-based decorative sheet is attached.

[0002]

2. Description of the Related Art Conventionally, the surface shape of a wood-based material such as natural wood or plywood is uneven or curved, and the outer surface of which has a suitable pattern. It is widely used as a building material such as handrails, or as a structural member such as furniture. As a means for applying a pattern to these columnar base materials, a method of sticking a decorative sheet using a lapping laminating machine (curved surface laminator) can perform in-line work and has a complicated surface shape. It is also used as an effective method for a columnar base material, because it is possible to perform good painting by appropriately selecting the shape and mounting position of a pressing roll that presses or guides the decorative sheet to the base material. As a decorative sheet, (1) a resin-coated decorative paper obtained by impregnating or coating a resin such as urethane or diallyl phthalate after applying a printing pattern to a paper-based substrate such as thin paper, (2) polyvinyl chloride film A synthetic resin decorative sheet having a printed layer formed on it is used.

However, a decorative material obtained by applying a printed pattern to a paper-based substrate such as the thin paper of the above (1) and then pasting a resin-coated decorative paper impregnated or coated with a resin such as urethane or diallyl phthalate. Has a weak tensile strength of the decorative sheet and is easy to tear, so it is inferior in moldability due to cracking and tearing depending on the shape of the columnar base material, and the surface is also smooth in appearance and lacks in three-dimensional feeling and depth feeling. I was not satisfied with it. In addition, the decorative material with the synthetic resin decorative sheet using the polyvinyl chloride film of (2) is
There is no problem in molding processability, and although it is possible to give an uneven pattern by embossing in terms of design, it produces a toxic gas such as hydrogen chloride gas when incinerated, so it is a means of treating waste materials. As a result, there was a problem that the incineration method could not be used.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to make a paper-based cosmetic that can be attached along uneven curved surfaces of various shapes. (EN) Provided is a decorative material having a sheet attached thereto, which does not generate a toxic gas such as hydrogen chloride gas when using incineration processing as a means for treating waste materials, and which has an uneven pattern on the surface and has excellent design. There is a thing.

[0005]

In order to achieve the above object, the decorative material of the present invention comprises a paper-based base material layer on the surface of a columnar base material having irregularities or curved surfaces on the outer surface through an adhesive, A decorative material comprising a laminated paper-based decorative sheet comprising a printing layer and a top coat layer, wherein the paper-based base material layer is formed by adhering two thin paper sheets through an extrusion coating layer of a thermoplastic synthetic resin. It is characterized by.

It is preferable that the extrusion coating layer of the thermoplastic synthetic resin is a polyethylene resin.

Further, it is more preferable that the surface of the top coat layer of the paper-based decorative sheet has an uneven pattern.

[0008]

In the decorative material of the present invention, since the paper-based base material layer has a sandwich structure in which two thin papers are adhered to each other through the extrusion coating layer of the thermoplastic synthetic resin, the tensile strength of the paper-based base material is increased. Since it becomes large and the extruded coat layer of the thermoplastic synthetic resin exerts an extremely excellent function as a buffer layer, it is smoothly attached to a curved surface shape. Moreover, since the gas generated during combustion does not contain toxic hydrogen chloride gas, it can be disposed of by incineration. Furthermore, since the base material can be given a thickness, embossing can be performed.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is an enlarged sectional view showing a laminated constitution of an embodiment of a decorative material according to the present invention, FIG. 2 is an enlarged sectional view showing a laminated constitution of a paper-based decorative sheet according to the present invention, and FIG. 3 is a makeup related to the present invention. FIG. 4 is an enlarged cross-sectional view showing a laminated structure of another embodiment of the material, FIG. 4 is a perspective view illustrating a state of lapping and laminating used in the practice of the present invention, 1 is a decorative material, 2 is a columnar base material, Three
Is an adhesive layer, 4 is a paper-based decorative sheet, 5 is a paper-based base material layer, 6
Is a print layer, 7 is a top coat layer, 8 is an embossed recess, 1
0 represents a belt conveyor and R represents a pressing roll.

As shown in FIG. 1, the constitution of the decorative material 1 of the present invention is such that the printing layer 6 is further formed on the paper base material layer 5 via the adhesive layer 3 on the surface of the columnar base material 2, and further the printing layer 6 is provided. Of the paper-based decorative sheet 4 in which the top coat layer 7 is sequentially laminated so as to cover the entire surface of the above, or as shown in FIG. 3, an embossed recess 8 is provided on the surface of the top coat layer 7. Yes,
A feature of the decorative material 1 of the present invention is that two thin paper sheets 51 having excellent tensile strength and cushioning properties are formed on the surface of the columnar substrate 2 through the adhesive 3 by the extrusion coating layer 52 of the thermoplastic synthetic resin. The point is that the paper-based decorative sheet 4 composed of the bonded paper-based base material layer 5 is attached.

As a method of manufacturing this decorative material 1, an apparatus as shown in FIG. 4 is used. This device is similar to a known lapping and laminating machine. That is,
FIG. 4 is a perspective view illustrating a state of lapping and laminating used in the practice of the present invention, in which the columnar base material 2 is sequentially placed on the belt conveyor 10 driven by an appropriate driving means, and the left side in the figure is shown. Will be transferred to the right.

On the other hand, the paper-based decorative sheet 4 is pulled out from above at a speed synchronized with the transfer speed of the columnar substrate 2, and is adapted to the outer surface of the columnar substrate 2 by a plurality of pressing rolls R _{1 to} R _n. To be in close contact. That is, as shown in FIG. 4, first, place located in the widthwise central portion of the columnar base material 2 of the paper-based decorative sheet 4 is adhered to the columnar base material 2 by the pressing roll R _1, then pressing roll R ₂ After that, the side portion of the paper-based decorative sheet 4 is bent along the outer surface shape of the columnar substrate 2, and then the side wall portion of the columnar substrate 2 is brought into close contact with the pressure roll R ₃ . Thereafter, the paper-based decorative sheet 4 is brought into close contact with the lateral sides of the columnar substrate in the width direction in order by the pressing rolls R ₄ and R ₅ . In this way, by sequentially adhering from the central portion to the lateral side portions, it is possible to prevent the formation of gaps or bubbles in the adhering surface between the columnar base material 2 and the paper-based decorative sheet 4. it can. The columnar substrate 2 is transferred to the next belt conveyor 10a in a state where the paper-based decorative sheet 4 is adhered over the entire length of the columnar substrate 2, and is adhered neatly in a state where the sheet is not broken and the pattern is not disturbed. Columnar substrate 2
Is taken out from the conveyor 10a as the decorative material 1 having the paper-based decorative sheet 4 having the colored solid layer 61, the printing layer 6 such as the pattern printing layer 62, and the top coat layer 7 attached to the surface thereof.

There is no particular limitation on the cross-sectional shape of the columnar base material to which the paper-based decorative sheet 4 according to the present invention is attached, and the decorative sheet is attached on the outer surface of the columnar substrate by a conventionally known lapping and laminating machine. Any cross-sectional shape that can be worn may be used. In addition, the material is also optional, metal materials such as iron and aluminum, synthetic resin materials such as polyvinyl chloride, acrylic resin,
Alternatively, any material such as plywood, particle board, wood-based base material such as MDF, ceramic product base material such as ceramics, etc. can be selected according to the intended final product.

As the constitution of the paper-based decorative sheet 4 used in the present invention, as shown in FIG. 2, for example, two sheets of thin paper 5 are used.
1 is formed on the upper surface of the paper-based base material layer 5 adhered via the extrusion coating layer 52 of a thermoplastic synthetic resin, the colored solid layer 61, the pattern printing layer 62, and the top coat layer 7 by a known printing method, preferably a gravure method. It is a laminated structure.

The paper-based base material layer 5 used in the paper-based decorative sheet 4 used in the present invention is composed of two thin papers 51 adhered to each other through an extrusion coating layer 52 of thermoplastic synthetic resin. As 51, weighed 23 to 65 g / m ²
The building material printing paper, pure white paper, or thin paper with a synthetic resin mixed to enhance the interlaminar strength is used, and a weight of 25 to 35 g / m ² is preferable, and another sheet to be laminated is used. Of course, the same type or different type may be used.

Two thin papers 51 constituting the paper base layer 5
Extruded coat layer 52 of thermoplastic synthetic resin for bonding
As, in terms of imparting strength, flexibility and thickness to the paper-based base material layer 5, a polyolefin resin such as polyethylene, polypropylene, ethylene-vinyl acetate copolymer is suitable, and among them, the cost is low, A polyethylene resin having excellent flexibility is preferable. The thickness of the polyolefin-based resin is preferably 30 to 60 μm, and particularly preferably 40 to 50 μm in view of printability, lapping workability on a columnar base material, embossing workability and the like. That is, when it is less than 30 μm, the flexibility and the buffering property are insufficient, and the lapping processability to the columnar base material cannot be obtained,
In addition, embossing becomes difficult, and when it exceeds 60 μm, the cost becomes high and the heat resistance during embossing is poor.

The printing layer 6 attached to the paper-based base material layer 5 is a colored solid layer 61 which is solid-printed on the whole surface and a pattern printing which expresses, for example, wood grain, stone grain, surface pattern of natural leather, cloth pattern, abstract pattern and the like. Layer 6
2, a known vehicle can be used as the vehicle of the ink, for example, acrylic type, vinyl chloride type, vinyl chloride-vinyl acetate copolymer, chlorinated polyolefin,
A single substance or a mixture of a plurality of resin types such as nitrocellulose and urethane type may be used, if necessary, with a colorant such as a pigment and a dye, an extender pigment, a solvent and the like being appropriately mixed. Among them, nitrocellulose-alkyd ink is preferable because of its excellent adhesion.

Next, the top coat layer 7 applied to the surface of the printing layer 6 is provided to protect the surface of the decorative material 1 and to adjust the glossiness. As the resin forming the top coat layer 7, an ionizing radiation curable resin, a thermosetting resin, a thermoplastic resin or the like can be used. However, the ionizing radiation curable resin is expensive, and the thermoplastic resin has a physical property. There are problems, and two-part curable resins such as urethane resins are suitable in consideration of surface physical properties and price. The gloss can be adjusted by adding an appropriate amount of inorganic fillers such as calcium carbonate, magnesium carbonate, talc, barium sulfate, silica, etc. to the ink made of a two-component curable resin such as urethane based to adjust the glossiness of the surface arbitrarily. can do. The top coat layer 7 is applied simultaneously with the print layer 6 applied to the surface of the paper base material layer 5 by a gravure printing machine.

The embossed recesses 8 are provided on the surface of the top coat layer 7 applied to the surface of the paper-based decorative sheet 4. The pattern of the embossed concave portion is not limited and may be formed in any pattern, for example, a copy of the uneven shape of a natural product such as wood grain, stone grain, and sand grain, letter symbols, lines, various abstract patterns, Examples include various matte surfaces. As a method of forming the embossed recesses 8 on the surface of the top coat layer 7, for example, various known presses such as a lithographic press, a roll embossing machine, an embossing machine and the like are used to shape the uneven shape of the embossed plate by heat and pressure. .

In the present invention, the paper-based decorative sheet 4 is obtained by printing, coating, etc. on the surface of the paper-based base material layer 5, followed by curing and drying.
Is prepared in advance as a separate step. Immediately before the step of attaching the prepared paper-based decorative sheet 4 to the columnar base material 2, the adhesive 3 is separately applied to the surface of the paper-based base material layer 5 of the paper-based decorative sheet 4. For coating on the paper-based decorative sheet 4 side, roll coating, gravure coating, reverse roll coating, comma coating, knife coating and the like can be effectively used.

The adhesive layer 3 is a layer for adhering the paper-based decorative sheet 4 to the columnar substrate 2. The adhesive 3 is a usual film such as ethylene vinyl acetate resin, vinyl acetate resin, acrylic emulsion resin or the like. It may be one used for wrapping. Further, in the present invention, since the adhesive is applied to the surface of the paper-based base material layer 5 of the paper-based decorative sheet 4, the paper-based base material layer 5 is attached.
The solvent contained in the adhesive layer 3 can be reduced by heating the adhesive layer 3 applied to the surface immediately before the attachment so that the paper can be reduced by vaporizing the solvent. It is possible to prevent the systematic decorative sheet 4 from floating or the deterioration and deterioration of the columnar base material or the decorative sheet layer due to the solvent.

Example 1 40 g from a T-die extruder was applied to a reinforcing paper having a basis weight of 30 g / m ^2.
A polyethylene film was extrusion-coated to a thickness of μm, and at the same time, another thin paper and an inter-paper reinforced paper having a basis weight of 30 g / m ² were laminated and cooled with a chill roll to prepare a two-layer thin paper for printing. Then, on the surface of this printing base paper with a normal gravure printing machine to print a colored solid layer with a nitrocellulose-alkyd-based ink, a pattern printing layer,
Subsequently, a topcoat layer was provided in-line using a two-component curable urethane ink to obtain a paper-based decorative sheet. Next, residual heat drum temperature 140-150 ℃, nip pressure 25k
It was inserted into a roll embossing machine under the conditions of g / cm ² and a speed of 30 m / min, and embossing was performed to form an uneven shape on the surface of the top coat layer. Then slit into the desired width. Next, a knife coater means is placed in the middle of the laminated decorative sheet transfer path of a curved laminator (PL-300C manufactured by Maruanaka Shoji Co., Ltd.) usually used, and an ethylene vinyl acetate resin adhesive is applied to the paper-based base material layer surface of the paper-based decorative sheet. Was applied (applied amount: 150 g / m ² ). Curved laminate of laminated decorative sheet coated with adhesive on a MDF substrate processed into a desired shape (speed: 20 m / min, drying temperature:
(60 to 70 ° C., lapping temperature: 60 to 70 ° C.) to obtain a patterned columnar substrate.

[0023]

As described above, by adopting a paper base material in which two sheets of thin paper are adhered to each other through the extrusion coating layer of the thermoplastic synthetic resin, the tensile strength of the base material is increased and the cushioning property is increased. Therefore, the decorative material easily attached can be obtained without cracking or breaking of the decorative sheet regardless of the shape of the columnar substrate.

The decorative material obtained by the present invention is
Since vinyl chloride is not used at all, it can be incinerated without causing air pollution when treating the waste material, and thus has an excellent utility value.

Further, since the base material of the paper-based decorative sheet can have a thickness, the moldability such as embossing becomes good, and the decorative material having an excellent design effect can be obtained.

[Brief description of drawings]

FIG. 1 is an enlarged cross-sectional view showing a laminated structure of an embodiment of a decorative material according to the present invention.

FIG. 2 is an enlarged cross-sectional view showing a laminated structure of a paper-based decorative sheet according to the present invention.

FIG. 3 is an enlarged cross-sectional view showing a laminated structure of another embodiment of the decorative material according to the present invention.

FIG. 4 is a perspective view illustrating a state of lapping and laminating used for implementing the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Decorative material 2 Columnar base material 3 Adhesive layer 4 Paper-based decorative sheet 5 Paper-based base material layer 51 Thin paper 52 Thermoplastic synthetic resin layer 6 Printing layer 61 Colored solid layer 62 Pattern printing layer 7 Top coat layer 8 Embossed recess 10 Belt Conveyor

Claims (3)

[Claims] 1. A makeup comprising a paper-based decorative sheet comprising a paper-based base material layer, a printing layer, and a topcoat layer laminated on the surface of a columnar base material having an uneven or curved surface on the outer surface thereof with an adhesive. A decorative material, wherein the paper-based base material layer is formed by bonding two sheets of thin paper through an extrusion coat layer of a thermoplastic synthetic resin. 2. The decorative material according to claim 1, wherein the extrusion coating layer of the thermoplastic synthetic resin is a polyethylene resin. 3. The surface of the top coat layer of the paper-based decorative sheet has an uneven pattern.
The listed cosmetic materials.