JPH07238500A - Wallpaper and its production - Google Patents

Abstract

PURPOSE:To laminate a laminating film in closely contacting state without breaking a foamed layer laminated to a base sheet. CONSTITUTION:A base sheet is printed with a foamable ink to obtain an intermediate sheet 14 having a prescribed printed pattern. A laminating film 13 is placed on the intermediate sheet 14 and heated in a furnace 24 to expand the foamable ink. The laminating film 13 is closely contacted to the intermediate sheet 14 with a pressing mechanism 25 by pressing the laminating film 13 with a 1st pressing roller 25b made of hard rubber and having smooth surface under a pressure not to cause the breakage of the foamed layer.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wallpaper to be attached to the inner wall of a building and a method for producing the same, and more particularly to a wallpaper having a three-dimensional texture and capable of preventing dirt from adhering to the surface for a long period of time. And a manufacturing method thereof.

[0002]

2. Description of the Related Art Wallpaper attached to the inner wall of a building is
Although various types have been developed, it is general that they are produced by printing a predetermined pattern on a base sheet in which a polyvinyl chloride resin layer is laminated on a backing paper and embossing. However, recently, after a predetermined pattern is printed on a polyvinyl chloride resin layer with a foaming ink mixed with a foaming agent, the foaming ink is foamed to produce a wallpaper having a three-dimensional texture pattern. .

As described above, since the pattern is printed and foamed with the foaming ink, only the part of the pattern is foamed to about 0.8 mm to 1.5 mm with respect to the polyvinyl chloride resin layer. It is possible to obtain a wallpaper having a three-dimensional effect with a texture different from that of the wallpaper having irregularities by the usual embossing.

[0004]

As described above, the wallpaper using the foamed ink has a complicated uneven pattern formed on the surface by the foamed ink. Therefore, when it is used for a long period of time, cigarette smoke or the like adheres to the wallpaper. The surface becomes dirty. Dirt adhering to the uneven surface cannot be easily removed by wiping.

The present invention is intended to solve such a problem, and its purpose is not to impair the unique three-dimensional effect obtained by foaming a foamed ink, and also to easily remove stains on the surface. The purpose is to provide wallpaper that can be used for a long time so that it can be removed.

[0006] Another object of the present invention is to provide a method of manufacturing a wallpaper, which can easily and efficiently manufacture such a wallpaper.

[0007]

The wallpaper of the present invention comprises a base sheet in which a polyvinyl chloride resin layer is laminated on a backing paper, and a foaming ink printed on the base sheet to give a predetermined pattern. A foam layer laminated on the base sheet, and a laminate film covering the foam layer on the base sheet in a close contact state without impairing the foam state and in a close contact state over the entire base sheet. The above object is achieved thereby.

Further, the method for producing wallpaper according to the present invention comprises a step of printing a predetermined pattern with a foaming ink on a polyvinyl chloride sheet of a base sheet in which a polyvinyl chloride resin layer is laminated on a backing paper, and a base sheet. As the foamed ink printed on the polyvinyl chloride resin layer of the sheet is covered,
A step of attaching a laminate film to the base sheet, a step of heating the base sheet and the laminate film in a state of being attached to each other to foam the foam ink on the base sheet to form a foam layer, and a surface having elasticity And a step of pressing a flat pressure roller having no unevenness on the laminate film with a pressure that does not destroy the foam layer to bring the laminate film into close contact with the foam layer and the polyvinyl chloride resin layer of the base sheet. It is a feature, and thereby the above-mentioned object is achieved.

[0009]

In the wallpaper of the present invention, the foam layer laminated in a foamed state on the base sheet is covered with the laminated film adhered without impairing the shape of the foam layer. , Stains do not directly adhere to the laminate film, but stains adhere to the laminate film. Dirt and the like adhering to the laminate film can be easily removed by wiping. Since the laminated film is in close contact with the foam layer without impairing the shape of the foam layer, the unique texture of the foam layer with a three-dimensional effect is not impaired, and the laminate film is also aesthetically superior.

In the method for producing wallpaper of the present invention, after printing a predetermined pattern on the base sheet with the foaming ink,
Laminate the laminated film on the base sheet,
The foaming ink is heated to foam. Then, the laminating film is pressed against the base film by a pressure roller having a flat surface and elasticity so that the foamed layer on the base film is not broken. Thereby, the laminated film is brought into close contact with the foam layer and the base sheet without breaking the foam layer on the base film.

[0011]

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

FIG. 1 is a sectional view showing an example of the wallpaper of the present invention. This wallpaper 10 is a flame-retardant backing paper 11a,
Polyvinyl chloride resin layer 1 containing plasticizer, stabilizer, etc.
1b laminated base sheet 11, foam layer 12 laminated in a foamed state on the base sheet 11 in a predetermined pattern, and laminated film 13 laminated so as to cover the entire surface of the base sheet 11. And have. The base sheet 11 and the foam layer 12 are integrally formed as an intermediate sheet 14 and then laminated with a laminating film 13.

The foaming layer 12 laminated on the polyvinyl chloride resin layer 11b is formed on the base sheet 11 by heating and foaming the foaming ink printed on the polyvinyl chloride resin layer 11b with a predetermined pattern. Has been formed. The laminate film 13 is made of an ethylene-vinyl alcohol copolymer and is in a state of being in close contact with the surface of the foam layer 12 and the surface of the polyvinyl chloride resin layer 11b on which the foam layer 12 is not laminated.

The surface of the foam layer 12 is not destroyed even when the laminate film 13 is in close contact, and the foamed layer 12 retains its original foamed state.

FIG. 2 is a schematic configuration diagram of the wallpaper manufacturing apparatus of the present invention. In this wallpaper manufacturing device 20, an intermediate sheet 14 having a predetermined pattern printed with foaming ink is wound in a roll shape on a base sheet 11 obtained by laminating a polyvinyl chloride resin layer 11b on a backing paper 11a. And is mounted on the feeding mechanism 21. Therefore, the intermediate sheet 14 wound into a roll is in a state where the printed foam ink is not foamed.

The feeding mechanism 21 to which the roll-shaped intermediate sheet 14 on which the foamed ink is printed is mounted, rotates the roll of the intermediate sheet 14 so that the intermediate sheet 14 is sequentially rotated.
It is fed out, passed through the tension control mechanism 22, and then heated by the heating mechanism 23.
Have been sent to.

The tension control mechanism 22 has a plurality of tension rolls 22a and conveys the intermediate sheet 14 fed from the feeding mechanism 21 from the upper side to the lower side to apply a predetermined tension to the intermediate sheet 14. Then, it is fed to the heating mechanism 23 disposed on the side of the tension control mechanism 22.

The heating roll mechanism 23 comprises a tension control mechanism 22.
It has the 1st heating roller 23a arrange | positioned at the lower side of 2nd, and the 2nd heating roller 23b arrange | positioned above the 1st heating roller 23a. The intermediate sheet 14 fed from the tension control mechanism 22 is wound around the first heating roller 23a and then wound around the second heating roller 23b.

The first heating roller 23a has 100
Steam at a temperature of 150 ° C to 150 ° C is flown to heat the intermediate sheet 14 wrapped around the outer peripheral surface thereof to 100 ° C to 150 ° C. The second heating roller 23b is heated to about 230 ° C. by an electric heater arranged inside, and heats the intermediate sheet 14 wound around the outer peripheral surface of the second heating roller 23b to about 230 ° C.

The intermediate sheet 11 wrapped around the second heating roller 23b passes between the second heating roller 23b and the pressure roller 23c arranged so as to face the second heating roller 23b,
It is transported to the heating furnace 24.

In the vicinity of the pressure roller 23c, which is arranged so as to face the second heating roller 23b, the laminate film 13 is attached in a rolled state. The laminated film 13 is pulled out toward the second heating roller 23b, and the second heating roller 23b
It is supplied between b and the pressure roller 23c. Second
The laminate film 13 supplied between the heating roller 23b and the pressure roller 23c is attached to the printing surface of the intermediate sheet 14 with the foamed ink between the rollers 23b and 23c. Both rollers 23b and 23
The laminate film 13 and the intermediate sheet 14 that have passed through the space c are bonded to each other in the heating furnace 24.
Being transported inward.

The inside of the heating furnace 24 is heated to 160 ° C. to 250 ° C. by, for example, a heater, and the intermediate sheet 14 and the laminated film 1 which are bonded to each other.
3 while passing through the heating furnace 24, 160 ℃ ~ 250 ℃
Heated to a degree. Then, while the intermediate sheet 14 and the laminate film 13 pass through the heating furnace 24, the foam ink of the intermediate sheet 14 is heated and foams. As a result, the foamed ink on the intermediate sheet 14 is foamed, and between the base sheet 11 and the laminate film 13,
The foam layer 12 having a predetermined pattern is formed.

The intermediate sheet 14 and the laminated film 13 that have passed through the heating furnace 24 are fed to the pressing mechanism 25. The pressing mechanism 25 includes a first backing paper 11a of the base sheet 11 of the intermediate sheet 14 which rolls on the surface thereof.
It has a pressure roller 25a and a second pressure roller 25b for rolling contact of the laminate film 13 attached to the intermediate sheet 14 and pressing the laminate film 13 to the intermediate sheet 11. Base sheet 11 backing paper 1
The first pressure roller 25a with which 1a is in rolling contact is made of a steel roller having no uneven surface,
The second pressure roller 2 on which the laminating film 13 rolls
5b is made of hard rubber having a flat surface without unevenness and having elasticity. The second pressure roller 25b is under an appropriate pressure so that the foamed layer 12 in the laminated state on the base sheet 11 is not destroyed,
The laminate film 13 is pressed against the base sheet 11.

When the intermediate sheet 14 and the laminating film 13 pass between the first pressure roller 25a and the second pressure roller 25b, the laminating film 13 becomes
The base sheet 11 on which the foamed ink is foamed and the foamed layer 12 is laminated is pressed against the base sheet 11 by the second pressure roller 25a having an elastic surface at an appropriate pressure so as not to destroy the foamed layer 12. As a result, the laminate film 13 adheres to the foam layer 12 on the base sheet 11 without impairing the foamed state, and at the same time, the foam layer 12
Is also in close contact with the surface of the base sheet 11 where there is no. As a result, the laminated film 13 is in a state of completely covering the base sheet 11 in an adhered state without air or the like being interposed therebetween.

The backing paper 11a of the base sheet 11
The first pressure roller 25a with which the
Depending on the hardness and the like of the foam layer 12 on 1, the elastic material such as hard rubber may be used. In this case, even if the foam layer 12 on the base sheet 11 is relatively flexible, it is possible to reliably prevent the foam layer 12 from breaking.

The intermediate sheet 14 and the laminate film 13 that have passed through the pressure mechanism 25 composed of the first pressure roller 25a and the second pressure roller 25b are sent to the cooling mechanism 26. The cooling mechanism 26 includes the base sheet 11 to which the laminate film 13 is attached.
Has a carrying-in roller 26a around which the backing paper 11a is rolled, and a cooling roller 26b around which the laminating film 13 on the intermediate sheet 14 fed from the carrying-in roller 26a is rolled around.

The cooling roller 26b has water sealed inside, and the intermediate sheet 1 heated by the heating furnace 24.
4 and the laminated film 13 are cooled. As a result, the wallpaper 10 in which the entire base sheet 11 is covered with the laminate film 13 is manufactured in a state where the foam layer 12 is laminated on the base sheet 11.

The wallpaper 10 cooled by the cooling mechanism 26
Are fed to the towing mechanism 27 and are towed by the towing mechanism 27. The wallpaper 10 pulled by the pulling mechanism 27 is wound into a roll by the winding mechanism 28.

As described above, since the base sheet 11 and the laminate film 13 are pressed by a suitable pressure roller having an elastic surface without unevenness, in place of the embossing by the embossing roller, The laminated film 13 is formed by the laminated film 13 without breaking the foamed layer 12 laminated on the base sheet 11.
Also, the base sheet 11 is firmly attached.

[0030]

INDUSTRIAL APPLICABILITY As described above, the wallpaper of the present invention is such that the foam layer laminated on the base sheet is covered with the laminate film which is adhered to the base sheet without being destroyed. It has an excellent appearance that retains the texture with a three-dimensional effect. Further, even if dirt such as cigarette smoke adheres to the laminate film adhered to the foam layer and the base sheet, the dirt can be easily removed by wiping.

The method of producing wallpaper according to the present invention is as follows.
Instead of embossing with an embossing roller, a pressure roller having a flat elasticity with no unevenness on the surface presses the laminate film against the base sheet, so that the laminate film can be formed into a foam layer and a layer without breaking the foam layer. Can be adhered to the base sheet. Therefore, the wallpaper of the present invention in which the laminate film is in close contact with the foam layer and the base sheet can be efficiently produced.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an example of a wallpaper of the present invention.

FIG. 2 is a schematic configuration diagram of a wallpaper manufacturing apparatus showing an example of the wallpaper manufacturing apparatus of the present invention.

[Explanation of symbols]

 10 Wallpaper 11 Base Sheet 11a Backing Paper 11b Polyvinyl Chloride Resin Layer 12 Foaming Layer 13 Laminated Film 14 Intermediate Sheet 20 Wallpaper Manufacturing Device 21 Feeding Mechanism 22 Tension Control Mechanism 23 Heating Mechanism 24 Heating Furnace 25 Pressurizing Mechanism 25a First Pressure Roller 25b 2nd pressure roller 26 Cooling mechanism 27 Traction mechanism 28 Winding mechanism

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location D21H 27/30

Claims (2)

[Claims] 1. A base sheet in which a polyvinyl chloride resin layer is laminated on a backing paper, and foamed ink printed so as to have a predetermined pattern on the base sheet is foamed to be laminated on the base sheet. A wallpaper comprising: a foamed layer, and a laminated film that covers the foamed layer on the base sheet in an adhered state without impairing the foamed state and covers the entire base sheet in an adhered state. 2. A step of printing a predetermined pattern by a foaming ink on a polyvinyl chloride sheet of a base sheet in which a polyvinyl chloride resin layer is laminated on a backing paper, and printing on the polyvinyl chloride resin layer of the base sheet. The step of attaching the laminate film to the base sheet so that the formed foam ink is covered, and heating is performed in the state where the base sheet and the laminate film are attached to form the foam ink on the base sheet to form the foam layer. Forming process and a flat pressure roller with no elasticity on the surface that has elasticity are pressed against the laminate film with a pressure that does not destroy the foam layer, and the laminate film is applied to the foam layer and the polyvinyl chloride resin layer of the base sheet. A method for producing wallpaper, which comprises the step of bringing them into close contact with each other.