JPS5851068B2 - Wall or floor covering materials and their manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wall or pressure covering material that is foamed and embossed by adhering powder particles, needles, or other surface covering materials to the surface, and a method for manufacturing the same. be.

Conventionally, short fibers are attached only to the patterned part of the surface of paper, cloth, nonwoven fabric, etc. as a wall or pressure covering material, or short fibers are attached to the entire surface of paper, cloth, nonwoven fabric and the patterned part It is known that a concavo-convex pattern is formed by pressing short fibers.

However, foamed and embossed walls or pressure coverings are manufactured by attaching powders such as short fibers, needles, or other surface covering materials to the surface. It has not been.

For this reason, when attaching powder, granules, needles, or other surface covering materials to a foamed wall or pressure covering material, an adhesive layer is placed between the foamed synthetic resin layer and the surface covering material layer. This layer required special considerations for embossing.

In other words, the presence of the adhesive layer causes a difference in the properties of the front and back surfaces of the foamed synthetic resin layer, and during embossing, large air bubbles are generated within the foamed synthetic resin layer, making it unusable as a wall or pressure covering material. There was a point.

As mentioned above, the present invention aims to provide a wall or pressure covering material which has been foamed and embossed with a surface covering material attached to the surface, which has been considered difficult in the past, and a method for manufacturing the same.

An embodiment of the manufacturing method of the present invention will be described based on FIG.

In FIG. 1, a base material roll 10 of paper, cloth, nonwoven fabric, etc. is provided, and a foamed synthetic resin 2 is coated on the surface of the base material 1 unwound from the roll by a synthetic resin coating device 11.

The foamed synthetic resin 2 is, for example, in the form of a sol consisting of the components shown in Table 1 below.

Table-1 Vinyl chloride paste (PX-NL Sumitomo Chemical) 100 parts Resin dioctyl phthalate (DOP) 60 parts Plasticizer azodicarbonamide (-+4-mu AZH Otsuka Chemical) 4 parts Foaming agent nO (zinc white) 5 parts Foaming Auxiliary agent zinc calcium type (KV-83 Kyodo Pharmaceutical) 3 parts stable press] Arrival
Color agent (Titanium TA200 Fuji Chitaka 6° 6 parts Pigment Ca
C0a (NS#100 day bundle powdering) Filling press] The base material 1 coated with the foamed synthetic resin 2 passes through a drying device 14 and is dried, and the state at point A at the exit of the drying device 14 is shown in FIG. Shown below.

Next, an adhesive 6 is applied to the surface of the dried foamed synthetic resin 2 by an adhesive coating device 15.

As the adhesive 6, an adhesive such as an acrylic adhesive that maintains flexibility is used instead of a vinyl acetate adhesive that becomes hard when heat treated.

Next, on the surface of the adhesive 6, two particles of powder such as fine stone powder or short fibers, needles, and other surface covering materials are applied by a coating device 18.

In this state, it passes through a drying device 21 to dry the adhesive 6, but the drying temperature of the device 21 is such that the foamed synthetic resin 2 does not foam (for example, if the foaming temperature is 200°C to 230°C, 150°C or less ).

The state at point B at the outlet of the drying device 21 is shown in FIG.

Next, it passes through a foaming device 22, which is maintained at a foaming temperature (for example, 200°C to 230°C) determined by the foaming agent contained in the foamed synthetic resin 2, and the foamed synthetic resin 2 is foamed. .

The state at point C at the outlet of this foaming device 22 is shown in FIG.

After that, the base material 1 and the foamed synthetic resin 2, adhesive 6, and surface coating material 5 attached to the surface thereof are temporarily transferred to the cooling roll 24.
is cooled.

Thereafter, the foamed synthetic resin 2 is heated and softened by a heater 25 provided only on the surface facing the surface covering material 5 (top surface in FIG. 1).

This heating temperature needs to be lower than the foaming temperature,
For example, the temperature is 150°C to 190°C.

Thereafter, the foamed synthetic resin 2 is embossed by the embossing device 26.

At this time, the embossing recesses may be colored at the same time by the ink applicator 27.

The state at the exit point of the embossing device 26 is
As shown in the figure.

That is, the wall or floor covering material 90 of the present invention has a foamed synthetic resin 2 having concave portions 3 and convex portions 4 adhered to a base material 1, an adhesive 6 further adhered thereon, and a surface covering material 5 further adhered thereon. Indicates that it was manufactured.

FIG. 2 shows a wall or floor covering material 90 of the present invention in which granules 5' are used as the surface covering material 5, and FIG. 3 shows a wall or floor covering material 90 in which acicular bodies 5ζ' such as short fibers are used. .

The wall or floor covering material, which is foamed and embossed with the powder particles, needles, and other surface covering materials of the present invention adhered to the surface, has the following effects.

In other words, short fibers are attached only to the patterned part of the surface of paper, cloth, nonwoven fabric, etc., as in the past, or short fibers are attached to the entire surface and the short fibers are pressed only to the patterned part to form an uneven pattern. Compared to wall or floor covering materials, the wall or floor covering materials of the present invention have a rich three-dimensional effect because they form an uneven pattern on the foamed synthetic resin by embossing, and they also have powdery particles, needles, and other surfaces on the surface. Because the covering material is attached, it is now possible to create a different style and taste from simply foamed and embossed wall or floor covering materials.

Next, the method of manufacturing a foamed and embossed wall or wall covering material with a surface covering material adhered to the surface of the present invention has the following features.

In other words, by heating only the surface (front) of the surface covering material after foaming and before embossing, the characteristics of the front and back surfaces are different due to the presence of the adhesive layer, and large air bubbles are created within the foamed synthetic resin during embossing. It has become possible to manufacture wall or floor covering materials with increased unevenness without causing problems such as occurrence of bumps.

In other words, if you apply too much heat before embossing because the surface is covered with adhesive, there will be no escape for the foaming gas, and large bubbles will form between the synthetic resin layer and the adhesive coating, which will cause problems during embossing. Conventional problems such as wrinkles, etc., have been solved.

[Brief explanation of the drawing]

FIG. 1 is a conceptual diagram of a method for manufacturing a wall or floor covering material in which the surface covering material of the present invention is adhered to the surface and subjected to foaming and embossing processing. FIG. 2 is a sectional view of the same wall or floor covering material. FIG. 3 is a sectional view of another wall or floor covering material as above. FIG. 4 is a state diagram of point A in FIG. FIG. 5 is a state diagram of point B as above. FIG. 6 is a state diagram of the same point C. FIG. 7 is a state diagram of the upstream point. 1: Base material, 2: Foamed synthetic resin, 3: Concave portion, 4: Convex portion, 5
: Surface coating material, 5″ two granules, 5″: Needle-shaped body, 6: Adhesive, 10: Base roll, 11: Synthetic resin coating device, 13: Roll, 14: Drying device, 15: Adhesive coating Device, 17: Roll, 18: Surface covering material coating device, 21: Drying device, 22: Foaming device, 23:
Heater, 24: Cooling roll, 25: Heater, 26:
embossing device, 27: ink applicator, 28: ink, 29: roll, 30: wall covering material roll, 90: surface-coated foam wall or floor bag material.

Claims (1)

[Scope of Claims] 1. A foamed synthetic resin layer that is attached to the surface of paper, cloth, nonwoven fabric, etc. and embossed thereon, and a powder that is adhered to the surface of the foamed synthetic resin layer with a non-curing adhesive. 9 granules,
A wall or pressure covering material with increased irregularities consisting of needle-like objects or other surface covering materials. 2 A foamed synthetic resin layer is applied to the surface of paper, cloth, nonwoven fabric, etc., and powder 2 is applied to the surface of the foamed synthetic resin layer with a non-hardening adhesive.
means for attaching granules, needles or other surface coatings;
means for heating only the surface on the surface coating material side after the means;
A method for producing a wall or pressure covering material with increased three-dimensional appearance, comprising means for embossing a foamed synthetic resin layer after said means.