JPH0747628A - Embossed sheet - Google Patents

Abstract

PURPOSE:To provide an embossed sheet having a surface excellent in antistaining properties, capable of preventing a plasticizer from bleeding out to the surface of the sheet even when a plasticizer-containing sheet such as a soft polyvinyl chloride sheet is used as a sheet base material, excellent in transparency, well balanced between transparency and embossed patterns and having beautiful appearance. CONSTITUTION:An ultraviolet crosslinked resin layer 2 having a smooth surface is provided to the single surface of a sheet base material 1 composed of a thermoplastic resin and embossed patterns 2 are provided to the other surface of the sheet base material 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to textured sheets used as table cloths, table mats, place mats, kitchen mats, desk mats, shower curtains and the like.

[0002]

2. Description of the Related Art In recent years, as a table cloth, a table mat, a luncheon mat, a kitchen cloth, a desk mat, a shower curtain and the like, those made of a thermoplastic resin sheet such as a soft polyvinyl chloride sheet have been widely used. It is also known that table cloths, table mats, place mats, kitchen mats, desk mats, shower curtains and the like made of such thermoplastic resin sheets are provided with wrinkles on one side for the purpose of preventing slippage. .

[0003]

As a method for providing a textured pattern on one side of the above-mentioned sheet having a textured pattern on one side, a thermoplastic resin sheet having a smooth surface made of polyvinyl chloride resin or the like is heated. A method of pressing the sheet with an embossing roll after softening is adopted. However, in the sheets obtained by such a method, since both surfaces of the thermoplastic resin sheet are heated and softened, the surface of the surface not provided with the embossed pattern is smoothed because the embossing is provided by pinching. There is a defect that the appearance of the product sheets is deteriorated, such as the deterioration of the transparency of the sheets and the resulting loss of the surface gloss on the side where the grain pattern is not provided.

In the case of a thermoplastic resin sheet containing a plasticizer such as a soft polyvinyl chloride sheet,
The plasticizer bleeds out on the surface, stains tend to adhere to the sheet surface, and copies adhere to the sheet surface, which further deteriorates transparency and appearance of product sheets.

The present invention has been made in order to solve the above problems, and does not impair the surface smoothness and surface luster on the side where the grain pattern is not provided, and the adhesion of dirt and sheets of copies. It is an object of the present invention to provide a sheet with a grain pattern in which adhesion to the surface is suppressed.

[0006]

Means for Solving the Problems The textured sheets of the present invention are provided with a smooth surface ultraviolet-crosslinking resin layer on one surface side of a sheet base material made of a thermoplastic resin, and have a texture pattern on the other surface side. It is characterized by being provided.
The grain pattern in the sheets of the present invention is preferably provided after forming an ultraviolet crosslinkable resin layer on one surface of the sheet base material, and the sheet base material is preferably a soft polyvinyl chloride resin sheet.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a partially enlarged sectional view showing an embodiment of the present invention. In the figure, 1 is a sheet base material, 2 is an ultraviolet cross-linking resin layer, and 3 is a grain pattern.

The sheet substrate 1 is, for example, polyvinyl chloride,
It is made of thermoplastic resin such as polystyrene, polyethylene, polypropylene, and ethylene-vinyl acetate copolymer resin. The sheet base material 1 is obtained by a known method. For example, plasticizers, stabilizers, lubricants, UV absorbers, antistatic agents, fillers, colorants, etc., may be added to the resin as required, as has been conventionally adopted as a method for producing sheets of this type. It can be obtained by molding the thermoplastic resin composition containing the various additives described above into a sheet by a known means such as a calendering method or an extrusion method. As a table cloth, a table mat, a place mat, a kitchen mat, a desk mat, a shower curtain, etc., a soft polyvinyl chloride sheet is generally used because of its transparency, processability, economy, etc., and also in the present invention. As the sheet base material 1, a soft polyvinyl chloride resin sheet is preferable. The thickness of the sheet base material 1 varies depending on the application,
It is preferably about 0.1 to 5.0 mm. Further, the sheet base material 1 in the present invention may be a single layer or a laminate of a plurality of layers, and in the case of a plurality of layers, each layer has the same composition. It may exist, or may be composed of different compositions.

The UV-crosslinking resin constituting the UV-crosslinking resin layer 2 is, for example, a polyether acrylate type,
Epoxy acrylate type, urethane acrylate type, polyester acrylate type, thiol / diene reaction type and the like are used. The thickness of the ultraviolet cross-linking resin layer 2 is 1
˜50 μm, especially 5˜20 μm is preferred.

The ultraviolet-crosslinking resin layer 2 is formed on one surface of the sheet base material 1 having both smooth surfaces by a known means.
When the sheet base material 1 is composed of a plurality of layers, the ultraviolet cross-linking resin layer 2 may be formed on one surface after laminating the sheet base material 1, or the ultraviolet cross-linking resin layer 2 may be previously formed on one surface. Another layer may be laminated on the side of the provided layer on which the ultraviolet-crosslinking resin layer 2 is not provided.

The sheets of the present invention can be formed by a known means such as heating and softening the base material sheet 1 on the surface of the base material sheet 1 on which the ultraviolet cross-linking resin layer 2 is not provided, and then pressing the base material sheet 1 with an embossing roll. As a result, the grain pattern 3 is formed. At this time, it is more preferable that the embossed pattern 3 is formed after the ultraviolet cross-linking resin layer 2 is provided.

[0013]

The sheet with a grain pattern of the present invention has the surface-smooth UV-crosslinking resin layer 2 provided on one surface of the base sheet 1, so that even if a grain pattern is formed on the other surface side, the grain surface has a grain surface. The smoothness and surface luster of the surface not formed are not impaired, and therefore, the transparency and the appearance are excellent. Further, since the textured sheets of the present invention have the ultraviolet-crosslinking resin layer 2 provided on one surface of the base material sheet 1, even if a sheet containing a plasticizer such as a soft polyvinyl chloride sheet is used. Since the plasticizer does not bleed out on the surface, there is no inconvenience such as stains on sheets or adhesion of copies.

The present invention will be described in more detail with reference to specific examples.

Example 1 An ultraviolet-crosslinking resin layer (thiol / diene reaction type, thickness 10 μm) having a smooth surface was formed on one surface of a soft polyvinyl chloride sheet having a thickness of 1.0 mm and both surfaces being smooth. With a thickness of 1.0 mm on the side without the UV cross-linking resin layer,
A soft polyvinyl chloride sheet having both smooth surfaces was superposed and heated to obtain a thermoplastic resin sheet having the soft polyvinyl chloride sheet as a base sheet and an ultraviolet cross-linking resin layer provided on one surface. Then, after heating and softening the thermoplastic resin sheet provided with an ultraviolet crosslinking resin layer on one side,
An embossing roll was used to impart an embossed pattern to the side where the UV-crosslinked resin layer was not provided, to obtain sheets with an embossed pattern of the present invention.

The transparency of the obtained textured sheets,
And the stain resistance was tested by the following method. The results are shown in Table 1.

[Test Method of Transparency] The surface gloss and the overall transparency of the surface of the textured sheet on which the texture pattern is not formed are visually observed, and ○: glossy and good transparency as a whole. B: Matte and poor transparency as a whole. Evaluated as.

[Staining resistance] Tomato ketchup heated to 90 ° C. was spilled on the surface of the textured sheet on the side not having the texture pattern, and after 1 hour, it was wiped with gauze to check for stains. Visually observed, ◯: Good with no spots. Δ: Staining is present and cannot be completely wiped off. Evaluated as.

Example 2 An ultraviolet-crosslinked resin layer having a smooth surface (thiol / diene reaction type, thickness 1) on one surface of a polyvinyl chloride sheet having a thickness of 2.0 mm
After forming 0 μm), it is softened by heating, and an embossing roll is applied with an embossing pattern on the side where the ultraviolet-crosslinking resin layer is not provided, whereby sheets with an embossing pattern of the present invention are obtained. The obtained textured sheets were tested for transparency and stain resistance in the same manner as in Example 1. The results are shown in Table 1.

Comparative Example 1 A polyvinyl chloride sheet having a thickness of 2.0 mm was softened by heating,
An embossing roll was used to impart a wrinkle pattern to one surface of the polyvinyl chloride sheet to obtain sheets with a wrinkle pattern.
The obtained textured sheets were tested for transparency and stain resistance in the same manner as in Example 1. The results are shown in Table 1.
Shown in.

[0021]

[Table 1]

[0022]

As described above, the textured sheets of the present invention have a surface-smooth UV-crosslinking resin layer formed on the surface thereof, and thus have excellent surface stain resistance and are used as sheet base materials. Even if a soft polyvinyl chloride sheet containing a plasticizer is used, the plasticizer does not bleed out to the surface. For example, there is no inconvenience such as copying being adhered to sheets.

Further, since the sheets of the present invention have the ultraviolet-crosslinking resin layer having a smooth surface on one side and the wrinkle pattern on the other side, the transparency and the side not having the wrinkle pattern are formed. The surface gloss is excellent, and the transparency and the grain pattern are in harmony, and the beautiful appearance that the grain pattern on the opposite side is seen through from the non-textured surface is shown.

[Brief description of drawings]

FIG. 1 is a partially enlarged sectional view showing an embodiment of the present invention.

[Explanation of symbols]

 1 sheet base material 2 ultraviolet cross-linking resin layer 3 grain pattern

Claims (3)

[Claims] 1. A sheet with a grain pattern, characterized in that an ultraviolet-crosslinking resin layer having a smooth surface is provided on one side of a sheet base material made of a thermoplastic resin, and a grain pattern is provided on the other side. . 2. Sheets with a textured pattern, characterized in that a UV-curable resin layer having a smooth surface is provided on one side of a sheet base material made of a thermoplastic resin, and then a textured pattern is formed on the other side. 3. The textured sheet according to claim 1, wherein the sheet base material is a soft polyvinyl chloride resin sheet.