JPH08199760A - Exterior decoration material - Google Patents

Abstract

PURPOSE: To increase adhesive force, by forming a rectangular exterior decoration material having a joint or a superposed zone in two adjacent sides and providing an adhesive layer on the surface of the superposed zone of this exterior decoration material and the rear face of the opposite side. CONSTITUTION: An overlap margin 3 used as a joint in common is provided at two adjacent peripheral sides of a decoration material 1 and an exterior decoration material provided with a surface side adhesive layer and a separable paper 7 is formed on the upper face of the overlap margin 3. A rear face side adhesive layer and a separable paper 8 are provided under the face of the side opposite to the side provided with the overlap margin 3 of the exterior decoration material to stick them together. Accordingly, since the mutual faces are stuck together with both adhesive faces, a secure adhesive force can be obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a covering material which can be applied to the inner and outer wall surfaces of buildings, floor surfaces, etc. or the surface of structures.

[0002]

2. Description of the Related Art Heretofore, an invention relating to a sheet-like surface covering material, particularly an invention relating to a surface finishing material for a building, has been disclosed in Japanese Patent Application Laid-Open No. 4-85447. There, in order to obtain waterproofness of the bonded portion of the surface covering material, a portion serving as a stacking margin is provided, or an adhesive portion and a release paper portion are provided on the back surface of the surface covering material to easily adhere to a wall surface or the like. It was something to do.

[0003]

OBJECT OF THE INVENTION JP-A-4-8 as exemplified in the prior art.
In the invention of No. 5447, the pressure-sensitive adhesive processed portion of the surface covering material is supposed to be bonded to the surface of the base material portion which is usually made of paper or a fiber product. However, even if sufficient pressure and heat can be applied in the processing in the factory, there are cases where insufficient points occur at the construction site. When the finishing work is carried out with the defects as described above, there may be a phenomenon that defective portions are lifted up or partially peeled off. An object of the present invention is to obtain a sufficient adhesive force at the portions where the surface covering materials are adhered to each other by the adhesive.

[0004]

In the cover material of the present invention,
Adhesive processing on the back side of the surface material is applied to the sides of the two sides that do not have the overlap margin, or to the four sides including the other two sides, and in addition to the area that creates the joint on the front side of the overlap margin, except for the width. I also have it.

The covering material of the present invention will be described below with reference to the drawings. FIG. 1 is a partially cutaway external perspective view of an embodiment of the present invention. In this embodiment, the two sides of the decorative material portion 1 are adjacent to each other, but the overlapping portion 3 which can also serve as a joint is provided at this portion. The adhesive layer 4 and the release paper 5 are provided on the upper surface of the overlap margin portion, and the adhesive layer 4 and the release paper 5 are provided on the lower surface of the side opposite to the side having the overlap margin of the covering material. It has become a thing. FIG. 2 shows the surface material from the back side, in which the adhesive layer and the release paper can be seen on the right side and the lower side, and the overlapping margin part and the decorative material part can be seen on the upper side and the left side. The boundary of is shown by the broken line. In FIG. 1 and FIG. 2, the adhesive layer and the release paper overlap each other. Therefore, the front side adhesive layer and the release paper are denoted by reference numeral 7 and the back side adhesive layer and the release paper are denoted by reference numeral 8 in the drawings. .

FIG. 3 is a sectional view of the cover material shown in FIG. 1. In this example, the base material portion 2 is the base material of the decorative material portion 1, and the overlap margin portion 3 is also included. Are used as one. The upper surface of the overlap margin portion is processed with an adhesive, and the lower surfaces of opposite sides are also processed with an adhesive. This adhesive processing is composed of an adhesive layer 4 and a release paper 5. FIG. 4 shows a main body of the covering material having another structure, which will be described later in Japanese Patent Laid-Open No. 4-7.
The technology disclosed in No. 6151 is used. In this example, a synthetic resin woven fabric is used as the core material 10 in the middle of the plate-shaped body made of the spray material 9. And
The overlap margin 3 is attached to the main body of the covering material with an adhesive (not shown), the upper surface thereof is processed with an adhesive, and the adhesive is also applied to the lower surface of the side facing the overlap margin. It has been processed.

The constituent members in the present invention will be described respectively. The present invention relates to the processing of the adhesive on the front and back surfaces of the surface covering material, and other main body parts of the covering material include various inventions other than those exemplified. It is an invention that can be applied to the undescribed one.

Known materials can be used for the pressure-sensitive adhesives processed on the front and back surfaces of the surface covering material of the present invention. Examples thereof include acrylic rubber-based or non-vulcanized butyl rubber-based adhesives. For example, silicone rubber type, styrene butadiene rubber type, polyisoprene type, and pony vinyl ether type can be used.

The release paper may be made of paper, which is a known material usually used for adhesive tapes, labels, etc., and which is coated with fluororesin or silicone resin.

Explaining the main body of the covering material, there is the covering material of the above-mentioned Japanese Patent Laid-Open No. 4-85447 as an example. In this example, the main body is a laminate of the decorative material part 1 and the base material part 2. The material used for the decorative material part includes a molded product made of natural stone, colored aggregate and synthetic resin, or a coating film on the base material part or a thin metal plate or a processed product thereof. There are materials selected from non-woven fabrics, glass cloth, synthetic paper, etc., or those that have been subjected to sealing processing.

Another example of the main body of the covering material is disclosed in Japanese Patent Laid-Open No.
There is also one in which a spraying material containing a natural stone, a colored aggregate and a synthetic resin emulsion as main components in No. 76151 is formed into a plate-like body and a core material made of a synthetic fiber woven fabric is sandwiched between them.

Another example of the covering material is Japanese Patent Laid-Open No. 61-151.
There is also one in which a flame-retardant fiber product in No. 351 is used as a base material, a water-based elastic paint is infiltrated, dried, and then a cosmetic uneven resin paint is attached. Further, in Japanese Patent Application Laid-Open No. 210110/1990 by the same applicant, there is also one in which a decorative pattern is formed by screen printing after forming a waterproof layer made of an elastic paint.

In the above-mentioned example, for the covering material without mentioning the overlapping margin, the coating is applied so as to make the overlapping margin, or only the overlapping margin is attached to the back surface of the covering material, or the overlapping margin is added to the entire back surface. There is a method in which a reinforcing member having a large area is attached to make the same.

[0014]

EXAMPLES In the examples, the improvement of the covering material described in JP-A-4-85447 was carried out. As the substrate, a sheet in which an acrylic resin paint was coated on both sides of a polyester non-woven fabric with a knife coater was used. For the decorative material layer on the substrate, multiple colors of cold water sand, colored fine aggregate, and a coating material containing synthetic resin emulsion as the main component were prepared, and this was used as a spot-shaped coating film. This cover material body is 60
A plurality of sheets were prepared with cm × 45 cm as a standard dimension. The overlap margin was made of the same material as the base material cut into a substantially L shape having a width of 8 cm, and was attached to the back surface of the main body of the covering material with an adhesive.
Non-vulcanized butyl rubber sheet, thickness 0.2mm,
A sheet having a width of 4.5 cm and having release paper adhered to one side thereof was used, and this was attached to the front surface of the overlap margin portion and the back surface of the side facing the overlap margin portion. At this time, an adhesive-unattached portion having a width of 5 mm for joints was provided on the side of the surface of the overlapping portion in contact with the decorative material portion.

The prepared surface covering material is placed on a concrete block wall as a base, and a polymer cement adhesive is used on this, and the adhesive processing parts on the back surface and the front surface are also used, and about 10 m ^{2 is} applied. It was When this covering material was exposed outdoors for 6 months, it was found that the end portion did not warp and a finish without problems could be obtained for a long time.

When this adhesive processing is applied to the front and back surfaces,
Regarding the difference in adhesive force when only the back side is prepared, prepare one with adhesive on the base material and one without
It was measured by the method of the adhesive strength test in Z0237.
The test result by the 180 degree peeling method is 2800 gf when the pressure-sensitive adhesive is processed on both sides, and the peeling position is cohesive failure of the pressure-sensitive adhesive layer. When the pressure-sensitive adhesive processing is performed on only one side, it is 15
It was 00 gf, and the peeling position was the interface between the adhesive and the overlap margin.

[0017]

EFFECT OF THE INVENTION In the present invention, it is difficult to obtain the adhesive strength with the object to be adhered with only one surface of the adhesive processing, but since the portions to be adhered by the adhesive are the adhesives, A reliable adhesive force can be obtained. Therefore, when the back surface of the end of the facing material is processed with an adhesive and exposed as it is, there was a problem of insufficient adhesive strength, but the adhesive adheres even with a small force during construction. As a result, more reliable adhesion can be obtained.

[Brief description of drawings]

FIG. 1 is an external perspective view showing a part of a cover material according to an embodiment with a cutout.

FIG. 2 is a plan view showing the surface covering material of the embodiment from the back surface.

FIG. 3 is a cross-sectional view of the facing material in the embodiment of FIG.

FIG. 4 is a cross-sectional view of an example in which the main body of the facing material is different from the example of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Decorative material part 2 Base material part 3 Stacking margin part 4 Adhesive layer 5 Release paper 6 Outer material body 7 Front side adhesive layer, Release paper 8 Back side adhesive layer, Release paper 9 Spraying material 10 Core material

Claims (1)

[Claims] 1. A substantially rectangular covering material applied to the surface of a building or a structure has joints or overlapping margin portions on two adjacent sides, and the front and back sides of the overlapping margin portion. A cover material having a pressure-sensitive adhesive layer and a release paper covering the pressure-sensitive adhesive layer on opposite sides of at least the overlapping margin.