JP2766613B2 - How to make wallpaper - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to wallpaper and a manufacturing method thereof affixed to the inner wall of a building, in particular, picture can be prevented with a texture having a three-dimensional appearance, that dirt on the surface over a long period is attached And a method for producing the same.

[0002]

2. Description of the Related Art A wallpaper stuck on an inner wall of a building is
Although various types have been developed, those manufactured by printing a predetermined pattern on a base sheet in which a polyvinyl chloride resin layer is laminated on a backing paper and embossing the same are generally used. However, recently, after printing a predetermined pattern on a polyvinyl chloride resin layer with a foaming ink in which a foaming agent is mixed, a wallpaper having a three-dimensional texture is produced by foaming the foaming ink. .

[0003] In this way, by printing a pattern with a foaming ink and foaming the pattern, only the pattern portion is foamed to about 0.8 mm to 1.5 mm with respect to the polyvinyl chloride resin layer. A wallpaper having a three-dimensional appearance with a texture different from that of a wallpaper provided with irregularities by ordinary embossing can be obtained.

[0004]

As described above, the wallpaper using the foamed ink has a complicated uneven pattern formed on the surface by the foamed ink. The surface becomes dirty. Dirt adhering to the uneven surface cannot be easily removed by wiping.

The present invention has been made to solve such a problem, and an object of the present invention is to prevent the peculiar three-dimensional effect obtained by foaming a foamed ink from being impaired and to easily remove dirt on the surface by wiping. A long-lasting wallpaper that can be easily removed
Another object of the present invention is to provide a method for producing wallpaper that can be efficiently produced .

[0006] Another object of the present invention is to provide a method for producing wallpaper that can easily and efficiently produce such wallpaper.

[0007]

[0008]

According to the method for producing wallpaper of the present invention , a predetermined pattern is printed with a foaming ink on a polyvinyl chloride sheet of a base sheet having a polyvinyl chloride resin layer laminated on a backing paper. Steps, a step of bonding a laminate film to the base sheet so that the foamed ink printed on the polyvinyl chloride resin layer of the base sheet is covered, and heating in a state where the base sheet and the laminate film are bonded together, A step of forming a foam layer by foaming the foam ink on the base sheet, and pressing a flat pressure roller having no elasticity on the surface with elasticity against the laminate film at a pressure at which the foam layer is not destroyed, thereby forming a laminate film. Adhering to the foam layer and the polyvinyl chloride resin layer of the base sheet. The object can be achieved.

[0009]

[0010]

In the method for producing wallpaper according to the present invention, after a predetermined pattern is printed on a base sheet with foaming ink, a laminate film is attached to the base sheet, and the foaming ink is heated to foam. Then, the laminate film is pressed against the base film by a pressure roller having a flat surface and elasticity at such a pressure that the foamed layer on the base film is not broken. Thereby, the laminate film is adhered to 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 manufactured by the manufacturing method of the present invention.
FIG. 3 is a cross-sectional view illustrating an example of a worn wallpaper. This wallpaper 10 has a base sheet 11 in which a polyvinyl chloride resin layer 11b mixed with a plasticizer, a stabilizer and the like is laminated on a flame-retardant backing paper 11a, and a predetermined pattern is formed on the base sheet 11. It has a foamed layer 12 that is laminated in a foamed state so as to have a laminated film 13 that is laminated so as to cover the entire surface of the base sheet 11. Base sheet 11
The foam layer 12 is laminated with a laminate film 13 after being integrally formed as an intermediate sheet 14.

The foamed layer 12 laminated on the polyvinyl chloride resin layer 11b is formed on the base sheet 11 by heating and foaming foamed ink printed on the polyvinyl chloride resin layer 11b in a predetermined pattern. Is 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 foamed layer 12 is not destroyed at all even when the laminate film 13 is in close contact with it, and the foamed layer 12 retains the initial foamed state.

FIG. 2 is a schematic configuration diagram of the wallpaper manufacturing apparatus of the present invention. In the wallpaper manufacturing apparatus 20, an intermediate sheet 14 on which a predetermined pattern is printed by foaming ink is wound around a base sheet 11 obtained by laminating a polyvinyl chloride resin layer 11b on a backing paper 11a. Thus, it is mounted on the feeding mechanism 21. Therefore, the intermediate sheet 14 wound in a roll is in a state where the printed foamed 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, and sequentially rotates the intermediate sheet 14.
And the heating mechanism 23
Has been sent to

The tension control mechanism 22 has a plurality of tension rolls 22a. The tension control mechanism 22 conveys the intermediate sheet 14 fed from the feeding mechanism 21 from above to below and applies a predetermined tension to the intermediate sheet 14. , And is fed to a heating mechanism 23 arranged beside the tension control mechanism 22.

The heating roll mechanism 23 includes a tension control mechanism 22
And a second heating roller 23b disposed above the first heating roller 23a. The intermediate sheet 14 fed from the tension control mechanism 22 is wound around the first heating roller 23a and then around the second heating roller 23b.

The first heating roller 23a has 100
The steam at a temperature of 150 ° C. to 150 ° C. is flown, and the intermediate sheet 14 wound around the outer peripheral surface is heated 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 wound around the second heating roller 23b passes between the second heating roller 23b and a pressure roller 23c arranged opposite to the second heating roller 23b.
It is transported to the heating furnace 24.

A laminate film 13 is attached in the vicinity of a pressure roller 23c arranged opposite to the second heating roller 23b in a state wound in a roll shape. The laminate film 13 is pulled out toward the second heating roller 23b,
b and the pressure roller 23c. Second
The laminate film 13 supplied between the heating roller 23b and the pressure roller 23c is bonded between the rollers 23b and 23c on the printing surface of the intermediate sheet 14 with the foamed ink. Both rollers 23b and 23
c, the laminated film 13 and the intermediate sheet 14 are bonded to each other in a heating furnace 24.
Has been conveyed inside.

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 bonded to each other.
While passing through the heating furnace 24, 160 ° C. to 250 ° C.
Heated to a degree. Then, while the intermediate sheet 14 and the laminate film 13 pass through the heating furnace 24, the foamed ink of the intermediate sheet 14 is heated and foams. Thereby, the foamed ink on the intermediate sheet 14 foams, and between the base sheet 11 and the laminate film 13,
The foam layer 12 having a predetermined design is formed.

The intermediate sheet 14 and the laminated film 13 that have passed through the heating furnace 24 are sent to a pressing mechanism 25. The pressurizing mechanism 25 is used for the first sheet on which the backing paper 11a of the base sheet 11 in the intermediate sheet 14 is rolled.
It has a pressure roller 25a and a second pressure roller 25b, which rolls the laminate film 13 bonded to the intermediate sheet 14 and presses the laminate film 13 against the intermediate sheet 11. Backing paper 1 for base sheet 11
The first pressure roller 25a to which 1a rolls is a steel roller having no irregularities on its surface, whereas
The second pressure roller 2 to which the laminate film 13 is rolled
5b is made of a hard rubber having a flat surface and no elasticity and having elasticity. The second pressure roller 25b is pressed at an appropriate pressure such that the foamed layer 12 laminated on the base sheet 11 is not broken.
The laminate film 13 is pressed against the base sheet 11.

When the intermediate sheet 14 and the laminate film 13 pass between the first pressure roller 25a and the second pressure roller 25b, the laminate film 13
The foamed ink is foamed, and the base sheet 11 on which the foamed layer 12 is laminated is pressed by a second pressure roller 25a having an elastic surface at an appropriate pressure so that the foamed layer 12 is not broken. As a result, the laminated film 13 adheres to the foamed layer 12 on the base sheet 11 without impairing the foamed state.
Is in close contact with the surface of the base sheet 11 in which no is present. As a result, the laminate film 13 completely covers the base sheet 11 in close contact with the base sheet 11 without air or the like interposed therebetween.

The backing paper 11a of the base sheet 11
The first pressure roller 25a with which the base sheet 1
Depending on the hardness or the like of the foam layer 12 above, an 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 laminated film 13 that have passed through the pressure mechanism 25 constituted by the first pressure roller 25a and the second pressure roller 25b are sent to a cooling mechanism 26. This cooling mechanism 26 is used for the base sheet 11 on which the laminate film 13 is bonded.
And a cooling roller 26b that is wound so that the laminated film 13 on the intermediate sheet 14 that is unreeled from the carrying roller 26a is rolled.

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

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

As described above, the base sheet 11 and the laminate film 13 are pressed by an appropriate pressure by a pressing roller having an elastic surface without irregularities instead of embossing by an embossing roller. The laminated film 13 is formed on the foam layer 12 without breaking the foam layer 12 laminated on the base sheet 11.
And it is firmly adhered to the base sheet 11.

[0030]

[0031]

According to the method for producing wallpaper of the present invention, instead of embossing with an embossing roller, the laminated film is pressed against the base sheet by a pressure roller having a flat elasticity without any irregularities on the surface. By doing so, the laminate film can be adhered to the foam layer and the base sheet without breaking the foam layer. 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 the drawings]

FIG. 1 is a cross-sectional view showing an example of wall paper manufactured by the method for manufacturing wallpaper of the present invention.

FIG. 2 is a diagram illustrating a method for manufacturing a wallpaper according to the present invention.
It is a schematic structure figure showing an example of a fabrication device .

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Wallpaper 11 Base sheet 11a Backing paper 11b Polyvinyl chloride resin layer 12 Foam layer 13 Laminate film 14 Intermediate sheet 20 Wallpaper manufacturing apparatus 21 Feeding-out mechanism 22 Tension control mechanism 23 Heating mechanism 24 Heating furnace 25 Pressing mechanism 25a 1st pressure roller 25b second pressure roller 26 cooling mechanism 27 traction mechanism 28 winding mechanism

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) D21H 27/20 B32B 5/18 B32B 27/30 101

Claims (1)

(57) [Claims] 1. A step of printing a predetermined pattern with a foamed ink on a polyvinyl chloride sheet of a base sheet having a polyvinyl chloride resin layer laminated on a backing paper, and printing on the polyvinyl chloride resin layer of the base sheet. Bonding the laminated film to the base sheet so that the formed foamed ink is covered, and heating in a state where the base sheet and the laminated film are bonded to foam the foamed ink on the base sheet to form a foamed layer. The step of forming and pressing a flat pressure roller with no unevenness on the elastic surface to the laminate film with a pressure that does not break the foam layer, and the laminate film is bonded to the foam layer and the polyvinyl chloride resin layer of the base sheet. A method for producing wallpaper, comprising the steps of: