JPS588755Y2 - Sheet material with adhesive layer - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a sheet-like article having a dressing layer having water-containing cells and an open foam layer.

Known synthetic wallpapers are produced by applying an adhesive to the back side of the design envelope and attaching release paper.

Therefore, when using the paper, the release paper must be peeled off and pasted, but this is extremely cumbersome and time-consuming, especially for wide products.

In addition, the designed outer layer excluding the release paper is difficult to handle because it curls, flexes, and sticks unnecessarily.

Furthermore, for substrates with rough surfaces, such as sand walls and fiber walls, the recesses must be filled with putty or the like in advance to create a flat surface before being pasted, which is time-consuming.

Furthermore, once the adhesive is pasted, it may become unadhesive, and even after pasting, it becomes loose and easily peels off.

This invention was made with the aim of fundamentally improving the drawbacks of conventionally known synthetic wallpapers. It is made of a nylon resin layer with continuous foaming so that it has many air bubbles.

The configuration of this invention will be explained below with reference to the drawings.

As shown in Figures 1 and 2, aesthetically treated paper, woven fabric, knitted fabric, non-woven fabric, heat-resistant synthetic film, thin cork skin, metal foil, mineral mesh, leather, or combinations thereof. An adhesive characterized in that a base material 2 with ventilation holes 1 such as the above is used, a nylon resin layer 4 having a large number of water-containing cells 3 is provided on the 2 sides of the base material, and a continuous foam layer 5 of the same resin is integrated. It is a sheet-like material with a layer of agent.

As nylon resin, nylon-11, nylon-1
2 or a copolycondensate thereof.

When the nylon resin has a melting range of 80 to 130°C and a Melt Intex U of 2,160 g, the flow rate is 1.
1~20g/10 darkness at 30℃, 3~50g/at 140℃
A length of about 10 m is preferable.

Next, to make a sheet-like product with the adhesive layer of this invention, a solution of nylon resin (polyamide) in formic acid is applied to the surface of the base material, and then neutralized with sodium hydrogen carbonate to release a gas. An aqueous solution of an alkaline substance is injected under pressure as a spray, and at the same time it coagulates to form a nylon resin layer.

Next, it is preferable to form an open cell layer into the nylon resin layer using the same method (polyamide-based synthetic resin in formic acid solution and an alkaline foaming agent).

In this case, it is preferable to mix an extender such as calcium carbonate, clay, or powdered pulp into the open cell layer.

This device is structured like a diagonal top, so when you use it, you simply press a household iron directly against the surface of the base material that has ventilation holes, and the hot air instantly removes the moisture bubbles on the contact surface of the base material. It softens and swells, emitting explosive water vapor.

The water vapor passes through the vent hole, contacts the bottom surface of the iron, becomes superheated steam at a temperature of 115° C. or higher, and is blown back through the vent hole.

Then, the foam layer is melted evenly in a short time and flows in a chain reaction, and the excess resin is pushed out and filled into the base of the object to be adhered, creating a flat and strong bond. .

Furthermore, since it is not an adhesive like conventional products, it does not become sticky and is extremely easy to handle.

In particular, it has innovative and practical commercial value in the field of interior building materials such as wallpaper and ceilings.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view of a sheet-like article having an adhesive layer according to this invention, and FIG. 2 is a partially enlarged side sectional view. 1 is a ventilation hole, 2 is a base material, 3 is a water-containing bubble, 4 is a nylon resin layer, and 5 is an open foam layer.

Claims (1)

[Scope of utility model registration request] A sheet-like article having a nylon resin layer 4 having a large number of water-containing cells 3 on two sides of a base material having ventilation holes 1, and an adhesive layer formed integrally with a continuous foam layer 5 of the same resin.