JP2002356096A - Method for manufacturing decorative sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for manufacturing a decorative sheet which can be efficiently manufactured at a low cost with almost inconspicuous overlapped patterns or missing print. SOLUTION: This method for manufacturing a decorative sheet comprises the steps to arrange not less than two transfer sheets 1a, 1b, etc., side by side in the width direction of a base paper 2 and print a pattern by transferring it in the longer direction. In this method, not less than two transfer sheets are partially superposed on each other in the longer direction to the width direction of the base paper and thereby, the pattern transfer to the base paper is achieved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a decorative sheet using transfer paper, and more particularly, to a method in which two or more transfer papers are arranged side by side in the width direction of a base cloth so that a pattern is formed in the longitudinal direction of the base cloth. The present invention relates to a method for manufacturing a decorative sheet to be transferred and printed.

[0002]

2. Description of the Related Art A method of giving a design of a printed pattern to the surface of a base material made of a resin such as vinyl chloride includes a method of performing normal gravure printing on the base material and a method of printing a printed film on which the pattern is printed. There are a method of bonding to a base material, and a method of transferring a transfer paper on which a pattern is printed to the base material.

[0003]

However, in a case where two or more patterns are continuously printed in the longitudinal direction with respect to the width direction of the base fabric, the usual gravure printing method uses different printing methods for different patterns. Since a roll (plate roll) must be prepared, the management of the print roll (plate roll) becomes complicated and the cost increases. In addition, in the method of attaching the print film to the base material or the method of transferring the transfer paper to the base material, a gap is easily generated between the patterns, and if the gap appears as a missing print, the commercial value is low. There was a problem that became a thing.

The present invention relates to a method of transferring a transfer paper to a base material, and more particularly, to a method of transferring a decorative sheet printed by transferring two or more patterns in the longitudinal direction in parallel with the width direction of the base material. It is an object of the present invention to provide a method of manufacturing a decorative sheet in which overlapping and printing omissions are hardly noticeable and can be efficiently and inexpensively manufactured.

[0005]

According to the present invention, there is provided a method for manufacturing a decorative sheet, wherein two or more transfer papers are arranged side by side with respect to a width direction of a base material, and a pattern is transferred in a longitudinal direction. A method for manufacturing a decorative sheet, wherein two or more transfer sheets are partially overlapped in the longitudinal direction with respect to the width direction of the base material and transferred to the base material. In this case, for the purpose of improving the design of the decorative sheet, the pattern of the transfer paper may be transferred to a base material, and then the base material may be embossed. Also, by making the patterns of two or more transfer papers for transferring the patterns in parallel to be the same, a wide decorative sheet can be manufactured at a low cost. Conversely, two or more patterns for transferring the patterns in parallel are transferred. By making the patterns of the transfer paper different from each other, it is possible to manufacture a decorative sheet having a two-tone or more pattern that is different in the width direction and is continuous in the longitudinal direction.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings. The present invention is to obtain a printed decorative sheet by using a known transfer paper 1 and transferring a pattern printed on the transfer paper 1 to the surface of the base material 2.

As shown in FIG. 1, the transfer paper 1 has a base paper layer 11 made of paper as a base and a release agent layer 1 for facilitating separation of the base paper layer 11 and the print layer 12 during transfer.
3, a print layer 12 on which a required pattern is printed, and an adhesion layer 14 for improving the adhesion between the print layer 12 and the base material 2 during transfer. The release paper 15 is formed by the base paper layer 11 and the release agent layer 13.
Is formed, and the transfer layer 16 is formed by the print layer 12 and the adhesion layer 14. Therefore, the transfer of the print pattern to the base material 2 is performed by laminating the surface of the base material 2 and the surface of the transfer paper 1 on the side of the adhesive layer 14 and thermocompression bonding, and then peeling the release paper 15 from the base material 2. The transfer layer 16 is peeled from the release agent layer 13 of the release paper 15 and is transferred to the surface of the base material 2. Note that the adhesion layer 14 may be omitted.

As the base resin used for the print layer 12 and the adhesion layer 14 of the transfer paper 1, vinyl chloride, acrylic, vinyl acetate, urethane, olefin, polyester and the like can be used alone or in combination. Mixtures of the above can be used, and among them, vinyl chloride-acrylic and urethane-based are preferably used.

The resin forming the base material 2 used in the present invention is not particularly limited, but may be vinyl chloride, olefin, acrylic, urethane, thermoplastic elastomer or the like alone or in combination. A mixture of more than one species can be used. In addition, additives such as plasticizers, stabilizers, light stabilizers, antioxidants, ultraviolet absorbers, flame retardants, processing aids, antibacterial agents, antifungal agents, coloring agents, and fillers are also added as needed. You may.

[0010] The base fabric 2 used in the present invention comprises:
It may be a single layer or two or more layers, and a foam layer or a base fabric may be laminated. As the base fabric, a woven or nonwoven fabric made of glass fiber, synthetic fiber, natural fiber, carbon fiber, or the like can be used.

The resin forming the base material 2 and the base resin forming the transfer layer 16 of the transfer paper 1 may be the same kind of resin or a resin which is thermally bonded to each other in consideration of the adhesion between them. It is preferable to select Furthermore, in order to improve the adhesion of the transfer layer 16, it is also possible to subject the base material 2 or the transfer paper to a corona treatment, a primer treatment, or the like.

When a decorative sheet is manufactured, two or more transfer papers 1a, 1b,... Are arranged in parallel in the width direction L of the base cloth 2 (see FIG. 2), and the transfer papers 1a, 1b,. …
Is transferred in the longitudinal direction and printed. At this time, two or more transfer papers 1a, 1b,.
The transfer is performed by partially overlapping in the longitudinal direction with respect to the width direction. Here, to partially overlap in the longitudinal direction,
.. Means that the edges (edges) of the adjacent transfer papers 1a, 1b,.

At the overlapping portion A in each of the transfer papers 1a, 1b,..., The pattern of the lower transfer paper (1a in FIG. 2) is transferred to the surface of the base cloth 2, and the upper transfer paper ( The pattern of 1b) in FIG. 2 is transferred to the back side of the transfer paper (1a in FIG. 2) located on the lower side. Therefore, the transfer layer 16 is cut off at the boundary portion B of the pattern in each of the transfer papers 1a, 1b,..., And the pattern does not overlap. At this time, it is preferable that the edge (edge) of the transfer paper (1a in FIG. 2) positioned on the lower side in the overlapping portion A is trimmed in advance so that the pattern extends to the boundary portion B.

Further, at the border B of the pattern in each of the transfer papers 1a, 1b,..., The gap between the borders of the adjacent patterns becomes very small because the thickness of the transfer paper 1a, 1b,. As a result, printing omissions are almost inconspicuous. Incidentally, the thickness of the transfer papers 1a, 1b,... Used is usually 1.0 mm or less.
In consideration of printing omission at the boundary of the pattern, the thickness is preferably 0.5 mm or less, more preferably 0.2 mm or less.

In order to make the boundary portion B of the overlapping portion A in each of the transfer papers 1a, 1b,... Inconspicuous when transferring the same pattern, the adjacent transfer papers 1a, 1b,.
It is preferable to select a pattern that does not need to match the patterns of. Patterns that do not require pattern matching include cloud patterns, stone patterns,
A grain pattern, a wave pattern and the like can be mentioned.

The pattern of the transfer papers 1a, 1b,.
After the transfer, the transparent layer (not shown) is preferably laminated on the transfer layer 16 in order to protect the transfer layer 16. The method for laminating the transparent layer on the transfer layer 16 includes a method of coating a paste-like resin, a method of laminating a resin-made transparent film or sheet by post-processing, or a method of calendering or extruding a transparent film or sheet using a calender or an extruder. And forming the transfer layer 16 on the base material 2 on which the transfer layer 16 is laminated.

The pattern of the transfer papers 1a, 1b,.
As a method of transferring to the base material 2, there are an in-line method in which the base material 2 is transferred at the same time as the formation, and a method in which the base material 2 is formed and then transferred in another step. In the in-line method, for example, in a process of forming the base material using a calender or an extruder, the base material 2 and the transfer papers 1a, 1b,. Then, the release paper 15 is peeled off after the transfer. Further, in the method of transferring in another process, the base material 2 is formed by a calender or an extruder, cooled once, and then re-heated to obtain the base material 2.
, And the transfer papers 1a, 1b,... Are overlapped and transferred together through a pressure roll, and the release paper 15 is peeled off after the transfer. Then, for the purpose of improving the design of the decorative sheet, the pattern of the transfer paper 1a, 1b,... May be transferred to the base material 2 and then the base material 2 may be embossed.

When the base material 2 and the transfer papers 1a, 1b,...
The surface temperature of the base cloth 2 is preferably set to 110 ° C. or higher, preferably 130 ° C. or higher in order to improve the adhesion of the a, 1b,... to the transfer layer 16. The temperature is preferably up to the heat resistant temperature of the base resin of the layer 16. Further, in order to improve the cut of the transfer layer 16 at the boundary portion B of the pattern and to make the printing omission inconspicuous, the softening temperature of the base resin used for the transfer layer 16 is set at 50.
C. to 100.degree. C. are preferred, and 70.degree. C. to 90.degree. C. are more preferred. Further, the melt viscosity of the base material 2 at the time of transfer is preferably from 1,000 to 30,000 PA · S,
0 to 20000 PA · S is more preferable.

[0019]

Next, the present invention will be described in more detail with reference to specific examples.

<Example 1> As a base material 2, a vinyl chloride resin having the composition shown in Table 1 below was used, and while being rolled to a width of 1850 mm by a calender, two types of transfer were performed as shown in FIG. Using a total of three sheets of paper 1a and 1b (two transfer sheets 1a and one transfer sheet 1b),
The edges (edges) are overlapped with each other along the longitudinal direction in parallel with the width direction of the base material, and the release paper 15 is peeled off after being pressed and transferred at the same time as being laminated with the base material 2 at the take-up portion of the calendar device. . Incidentally, a transfer paper KD-5 (geometric pattern) manufactured by Toppan Printing Co., Ltd. was used as the transfer paper 1a, and a transfer paper TD-20 manufactured by Toppan Printing Co., Ltd. was used as the transfer paper 1b.
11 (grain pattern) was used. The surface temperature of the base fabric 2 at the time of lamination was 135 ° C. The melt viscosity of the base material 2 at the time of transfer is 8370 PA · S (temperature: 13
5 ° C., shear rate: 12 / sec). Thereafter, a transparent layer was laminated on the surface of the transfer layer 16 to obtain a decorative sheet. The obtained sheet was a two-tone printed pattern decorative sheet having a geometric pattern and a grain pattern, and almost no print omission was observed between the two patterns.

[0021]

Table 1 Components Ingredients Compounding amount Vinyl chloride (p = 1000) 100 DOP (plasticizer) 50 Stabilizer (Ba-Zn system) 2 Colorant 2 Filler (calcium carbonate) 100 * All compounding amounts are parts by weight. .

<Example 2> A vinyl chloride resin having the composition shown in Table 1 was molded by an extruder to prepare a base material of 2050 mm. In a laminating apparatus, two transfer papers of the same type are arranged side by side with respect to the width direction of the base cloth 2 so that the edges (edges) are overlapped with each other along the longitudinal direction, and after passing through a pressure roll, the release paper 15 is transferred. Peeled off. In this embodiment, transfer paper PMT manufactured by Chiyoda Gravia Co., Ltd. was used as the transfer paper.
-1108 (stone pattern) was used. The surface temperature of the base fabric 2 at the time of lamination was 135 ° C. Thereafter, the transfer layer 16
The transparent layer was laminated on the surface of, and both sides were trimmed to obtain a decorative sheet. The obtained decorative sheet had a stone pattern and was a 2000 mm wide decorative sheet with no printing omission.

[0023]

The present invention thus provides a method for producing a decorative sheet for printing by transferring two or more transfer papers in parallel to the width direction of the base cloth and transferring the pattern in the longitudinal direction. The transfer paper is partially overlapped in the longitudinal direction with respect to the width direction of the base material and transferred to the base material, so that pattern overlap and print omission are hardly noticeable, and efficient and inexpensive manufacturing Becomes possible.

Further, according to the method of manufacturing a decorative sheet according to the second aspect, after transferring the pattern of the transfer paper to the base material,
Since the base fabric is embossed, the design of the decorative sheet can be improved.

Further, according to the method for manufacturing a decorative sheet according to the third aspect, the patterns of two or more transfer papers for transferring the patterns in parallel are made identical to each other, so that a wide decorative sheet can be manufactured at low cost. can do.

According to the decorative sheet manufacturing method of the present invention, the patterns of two or more transfer papers for transferring the patterns in parallel are different from each other, so that the patterns are different in the width direction and are continuous in the longitudinal direction. It becomes possible to manufacture a decorative sheet having a two-tone or more pattern.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating an example of an embodiment of transfer paper.

FIG. 2 is a cross-sectional perspective view showing an example of a state in which transfer paper is overlaid on a base material.

FIG. 3 is a cross-sectional view showing another embodiment in which transfer paper is superimposed on a base material.

[Explanation of symbols]

 1 (1a, 1b,...): Transfer paper 2: base fabric A: overlapping portion B: boundary portion

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yuichi Akiba 5-3 Higashinakakanuki-cho, Tsuchiura-shi, Ibaraki F-term (reference) in Tsuchiura Works, 2H113 AA04 AA05 AA06 BA03 BA22 BB08 BB22 BB32 CA05 FA03 3B005 EB03

Claims (4)

[Claims] 1. A method of manufacturing a decorative sheet for printing a pattern by transferring two or more transfer papers in parallel with a width direction of a base cloth and transferring a pattern in a longitudinal direction thereof. A method for producing a decorative sheet, comprising: transferring the base sheet partially overlaid in the longitudinal direction with respect to the width direction onto the base cloth. 2. The method for manufacturing a decorative sheet according to claim 1, wherein the pattern of the transfer paper is transferred to a base material.
A method for manufacturing a decorative sheet, comprising embossing the base cloth. 3. The method for manufacturing a decorative sheet according to claim 1, wherein the patterns of the two or more transfer papers to be transferred are the same. 4. The method for producing a decorative sheet according to claim 1, wherein the patterns of the two or more transfer papers to be transferred are different from each other.