JPH03287683A - Adhesive for wall paper, sliding door paper, or the like - Google Patents

Abstract

PURPOSE:To obtain an adhesive adaptable to the use for wall paper, sliding door paper, etc., without making the hand dirty by enclosing a prescribed amount of a granular starch for an adhesive in a packaging material made of a water-soluble film sheet and putting it in a prescribed amount of water before use. CONSTITUTION:A prescribed amount of a granular or powdery starch for an adhesive with or without a very small amount of an additive (e.g. an antiseptic and mildewproofing agent) is enclosed in a packaging material made of a water- soluble film sheet (e.g. PVA resin sheet) and hermetically sealed to give the title adhesive. Since this adhesive consists of solid matter only, it can realize the reduction in transportation cost, the narrowing of storage space, and the reduction in weight to be carried. Because it is packed, weighing is unnecessary, the operation can be performed rapidly, and a required quantity of the paste can be prepared quickly and easily. By putting it together with the bag in a prescribed amount of water before use, the viscosity can be adjusted to suit to the use for wall paper, sliding door paper, etc., without making the hand dirty. Since it does not come into direct contact with the hand, various bacteria can be prevented from getting mixed therein, so that its decay can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention mainly relates to an adhesive for wallpaper adhesive construction.

Background Art> Currently, wallpaper adhesives commonly used in the wallpaper construction industry contain starch powder as a main component and contain 20%
] and about 80% liter of water was added to form a paste, which was then stored in containers and sold, and contractors used it after diluting it with about twice as much water during construction.

<Problems to be Solved by the Invention> As mentioned above, conventional adhesives have a water content of about 80 [%1] and a solid content of about 20 [%1], so when transported to the construction site, most of the weight is water. At the same time, the bulk of the container was large compared to the amount of water, which had the disadvantage of requiring a lot of trouble to transport and transporting helmets.

In order to improve these drawbacks, powdered adhesives have already been put into various bags made of paper, plastic sheets, etc. and are emitting light on the market. During construction, a predetermined amount of water is poured into the powdered adhesive taken out of the bag, or vice versa, the adhesive is poured into a predetermined amount of water and stirred to form a paste. .

Here, the important points to keep in mind when obtaining a paste-like adhesive are: (1) It must have appropriate viscosity and initial adhesive strength (without this strength, it would be impossible to apply it to the ceiling).

(If water is absorbed by the backing paper, it will be difficult to spread the glue on the paper surface, and the paper will not peel). C) The viscosity can be maintained for about 7 days. In fact, it can maintain its antiseptic and antifungal effects for more than 7 days. 2. In terms of external performance, it must be odorless or have the same odor as ordinary construction pastes and adhesives, and be white in color. is required.

Although these internal and external performances are easy to satisfy,
Regarding the performance of the adhesive as an adhesive, it is extremely important that the powdered adhesive has good dispersibility when added to water, that is, does not form "clumps" (also referred to as lumps).

However, due to the nature of the powder adhesive, it is hygroscopic and hardens easily, but it has low dispersibility when added to water, and even when stirred, a large amount of light powder is dispersed on the water surface and dissolution is slow. , some of them solidify and cannot be mixed or dissolved completely, resulting in small lumps called "dama" or "*mako", and the whole does not become a perfect glue. At present, it has not been widely used due to serious problems such as deterioration of adhesion, antiseptic properties, anti-mold properties, and viscosity retention of the glue during construction.

The present invention was developed to improve the drawbacks of the above-mentioned conventional adhesives.

Means for Solving the Problems> The present invention is made by storing granular starch for adhesives mixed with necessary additives such as powdered preservatives and antifungal agents in a package made of a water-soluble film sheet. This is an adhesive side for wallpaper that is characterized by:

Action> At the time of construction, a predetermined amount of the adhesive of the present invention stored in a water-soluble film sheet package is poured into the required amount of water for dilution and stirred to dissolve.

<Example> Granular ether crosslinked starch 9.0 Powder vinyl acetate-ethylene copolymer resin 0.9 Mold
0.1 Total (weight ratio) 10.0 A predetermined amount of the above mixture is stored in a bag made of a water-soluble film sheet (commercially available polyvinyl alcohol resin), sealed, and sold as a product.

When used by construction workers or homeowners for do-it-yourself work,
When the above-mentioned water-soluble bag is put into a predetermined amount of dilution water, the weight of the bag submerges in the water, the bag dissolves in water, and the adhesive inside is sufficiently stirred and dissolved in the water. Glue with a predetermined viscosity can be easily obtained without forming lumps.

The weight ratio of dilution water and adhesive is approximately 10 to 12:1, but may be adjusted depending on the purpose, paper quality, weather, temperature, etc.

Effects of the invention: Due to the solid content, transportation costs are reduced, inventory space is reduced,
The weight to be transported can be reduced. Because it is packed in a bag, there is no need to weigh it, making the work faster.

The required amount of glue can be created quickly and easily.

Also, by using a water-soluble resin bag, measuring the glue was simplified. It has the feature of minimizing the powder residue when gelatinizing powder in water.

When using, you can easily adjust the viscosity of the glue to suit walls, ceilings, shoji, and sliding doors without getting your hands dirty by putting a certain amount of powder into a bag and adding it to the specified amount of water. By not touching it directly with your hands, you can prevent the 13-glue from getting mixed into the glue, which will accelerate its decay and reduce its physical properties.

Therefore, it was found through experiments that the above-mentioned effect produced a synergistic effect with the antiseptic/fungal agent in the compounded material, making it possible to maintain the physical properties for 20 days or more.

Claims (1)

[Claims] 1. A predetermined amount of granular or powdered starch for adhesives, with or without addition of trace additives, is stored in a package made of water-soluble film sheet, sealed and packaged together. An adhesive for wallpaper, fusuma paper, etc., which is made into a paste by adding it to water and stirring it.