DE1921800A1 - Wall-paper carrying strip with one-sided - adhesive application - Google Patents

Abstract

The adhesive consists of a water soluble paste and an overlay to form a swelling layer. These two elements are applied successively to the reverse-side of the wall-paper as a colourless, flexible and reversible film. The paste contains pref. methyl cellulose, carboxymethylcellulose, polyvinyl alcohol, and mixtures of polyacrylates with free carboxy groups.

Description

■ 'Paientanv / aife
DIPL-EEC. F. RG5E & C5

SfUHgJCs-M

Gymnasiumstr. 31 B
TeJ. 0711/291133 Stuttgart, April 24, 1969

Ro / yes

Re: Patent and utility model auxiliary application D 3641

Note: Pickhardt & Siebert
Wallpaper factory

5270 Gummersbach / Rhld.

Carrier sheet with rubber coating on one side, especially wallpaper

The invention relates to a method for producing a one-sided rubber coating on film-like carrier webs, preferably Wallpaper strips.

A method is already known in which paper webs after applying a diluted adhesive with powdery paste such as methyl cellulose or carboxymethyl cellulose dusted and then dried. A disadvantage here, however, is that the powdered layer of the rolled Goods come off easily and the adhesive strength is reduced accordingly. In addition, those produced by this process have Wallpaper has the disadvantage that it is difficult to move it on the wall to correct it.

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00 98 4 6/0727

The invention is based on the object mentioned Avoid disadvantages and in particular a method for Making a wallpaper that can be easily corrected after sticking it on the wall.

This object is gelösx according to the invention that the Gumming made of a water-soluble paste or adhesive and an application that serves to form a swelling layer and these two components follow one another in any order on the back of the wallpaper strip in the form a colorless, flexible and reversible film can be applied. It is to be regarded as particularly advantageous that the gumming is applied in the form of a colorless, flexible and reversible film. A colorless gum allows the use of very thin paper webs, the goods being very good due to the flexibility of the gumming can be rolled up. The reversibility of the gumming is to be understood as meaning that the applied film is under Addition or withdrawal of water can be transformed into an adhesive layer or a solid connection at any time.

It is very advantageous if the water-soluble paste or adhesive is applied in a rather even layer directly to the wallpaper strip and pre-dried, and preferably consists of methyl cellulose, carboxymethyl cellulose, polyvinyl alcohol, and contains additives of polyacrylates with free carboxyl groups. After the pre-drying of the adhesive on the wallpaper strip, the application used to form the swelling layer is advantageously applied as a uniform layer on the pre-dried adhesive, the application consisting of sodium or ammonium ions in the form of their salts kaaan ₉ which are provided with a binder component.

009846/0727

BATH ORIGINAL

The order and the water-soluble glue that together make the Form gumming, have the advantage that the gumming on contact with water a swelling, self-binding Forms an adhesive layer that allows the wallpaper to move easily and, after drying, creates a firm connection between the wallpaper roll and the V / and manufactures. The applied layers swell when they come into contact with water. Through the Formation of the salt of the polyacrylic acid creates a gel layer which enables the path to be corrected well.

In a special embodiment of the manufacturing process a one-sided Gurnniierung on wallpaper strips and the like. The application used to form the swelling layer can consist of borax or boric acid and be in a uniform layer can be applied to the pre-dried glue, which is made using polyvinyl alcohol.

In the drawing, for example, a wallpaper is in cross section shown made in accordance with the invention. Hit 1 is the wallpaper strip marked with a on the back Adhesive 2 and a further application 3 serving to form a swelling layer is provided. After placing the order 3 the adhesive 2 creates a uniform layer which, when water is applied, achieves the above-mentioned effect. The order in which the adhesive 2 is applied and the order is arbitrary.

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0098A6 / 0727

Claims (6)

_ 4 - Patent and protection claims 1. Process air production of a one-sided rubber coating foil-like carrier webs, preferably wallpaper webs, characterized in that the gumming consists of a water-soluble Paste or glue and an order serving to form a swelling layer and these two Components in any order one after the other on the back of the wallpaper strip in the form of a colorless, flexible and reversible film can be applied. 2. The method according to claim 1, characterized in that the paste or adhesive is applied directly to the wallpaper strip in an even layer and pre-dried is and preferably made of Kethylcellulose, Carboxymethylcellulose, Polyvinyl alcohol consists and contains additives of polyacrylates with free carboxyl groups. 3. The method according to claims 1 and 2, characterized in that that the application used to form the swelling layer is applied as a uniform layer on top of the predried Paste or glue is applied and consists of sodium or ammonium ions in the form of their Äze, which with a Binder content are provided. 4. The method according to claim 1, characterized in that the application used to form the swelling layer consists of borax or boric acid and is uniform Layer is applied to the pre-dried glue, which is made using polyvinyl alcohol. _ 5 _. 009846/0727 5. The method according to one or more of claims 1 to 4, characterized in that the rubber coating on contact forms a swelling, self-binding adhesive layer with water, which allows the wallpaper strips to be moved and creates a firm connection between the wallpaper and the wall after drying. 6. Wallpaper, produced by one of the methods of claims 1 to 5. 009846/0727 Blank page