JPH0259252B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a construction method for making a mud wall into a black polished wall in a building made of mud, and a wall ink therefor.

Conventional black polished walls are coated with an intermediate coat on the rough wall and then painted with plaster mixed with wall ink, which not only requires a large amount of expensive wall ink, but also requires a large amount of expensive wall ink. Since it is used after aging for a long period of about 6 months to 2 years, the construction period is extended and the construction cost becomes extremely high.In addition, the wall ink plaster may rot while it ages, and the black polishing after construction is difficult. Cracks and peeling may occur in the walls, and it took many years of experience and skill to overcome the technical difficulties of construction.

This invention solves the above-mentioned problems in conventional black polished wall construction and develops a new wall ink.The purpose of this invention is to eliminate the need for long-term aging at all and to reduce the amount of wall ink used. There is a black polished wall construction method that requires less work.

Another object of the present invention is to provide a wall ink that can be applied to a plastered wall and then finished by troweling, and can also be used for repair purposes.

The construction method of the present invention is characterized by painting a plaster wall formed by a conventional method with wall ink and troweling it immediately before drying.

Moreover, the wall ink for the construction method of this invention includes ink pigment, water,
It is characterized by being made of a water-soluble paste.

The details of the black polished wall construction method of this invention will be explained below.

Forming the plaster wall First, form the rough wall. The material for the rough walls is clay mixed with straw.

Next, apply an intermediate coat to the rough walls. The material for the intermediate coating is a mixture of nashime clay and straw zusa. There is nothing different from the conventional method.

Paint plaster over the intermediate coating. The plaster material is a mixture of slaked lime, funori paste, and paper cushions, and the coating thickness is approximately 1 mm.

Next, wall ink is applied to the plaster, but this should be done just before the plaster dries, and the painting is done with a trowel, brush, spray, etc.

The amount of wall ink used is sufficient so that the white background of the plaster wall is not visible, and the thinner the coating, the less it will peel off and the better the water resistance will be.

When the painted wall ink starts to dry, press it with a polishing trowel to make it shine.

The black polished wall construction method of this invention is as described above, and this method differs from the conventional black polished wall construction method because it forms a plaster wall and paints the wall ink just before drying the plaster wall. There is no need for long-term aging of plaster with wall ink, which can significantly shorten the construction period, and only a small amount of wall ink is required, so not only can installation costs be greatly reduced, but no special skill is required for installation. It has excellent effects such as

Next, wall ink used in the implementation method of this invention will be explained in detail.

This wall ink uses carbon black as a pigment, mixed with water, water-soluble synthetic paste, or water-soluble natural paste.

Water-soluble synthetic glues include polyvinyl alcohol, hydroxyethyl cellulose, methyl cellulose, ethyl cellulose, carboxymethyl cellulose, etc., as well as acrylic and vinyl acetate polymer compounds, but the viscosity of all of them increases as the degree of polymerization increases. A film with a low degree of polymerization is preferable because it forms a strong film and causes cracks, wrinkles, peeling, etc. on the wall surface.

Examples of water-soluble natural thickeners include glue, gelatin, gum arabic, starch, funori, sodium alginate, and many other processed starches obtained from starch.

These thickeners can be added to pigments either singly or as a composite thickener, but if too small a quantity, the dispersion of the pigment will be poor, the viscosity will drop, resulting in poor applicability, and poor adhesion to walls and gloss. On the other hand, if the amount is too high, the film formation is strengthened, causing cracks, wrinkles, etc. on the wall surface and causing peeling.

Example 1 25 parts by weight of pigment (carbon black) and 4 parts by weight of glue
A trace amount of a surfactant (nonionic type) and a trace amount of a preservative (amine type) were added and thoroughly kneaded, and then 71 parts by weight of water was gradually added to dilute the mixture.

Example 2 (composition only) Pigment (fumes) 25 parts by weight Methylcellulose 2 Surfactant (nonionic) Trace amount of preservative (amine type) Trace amount of water 73 parts by weight Example 3 (composition only) Pigment (fumes) 25 Parts by weight Polyvinyl alcohol 3 Surfactant (nonionic) Trace amount preservative (amine type) Trace amount water 72 parts by weight The wall ink of this invention is as described above,
The resulting product has moderate viscosity and good adhesion to walls, can be applied without any other contaminants, and can be finished with a beautiful gloss by pressing with a trowel, unlike conventional products. It was possible to paint a black polished wall with unprecedented ease, and this wall ink could withstand long-term storage.

Claims (1)

[Scope of Claims] 1. Black polishing characterized by applying an intermediate coating on a rough wall by a conventional method to form a plaster wall on the intermediate coating wall, and immediately before the plaster wall dries, applying wall ink and finishing with a trowel. Wall construction method. 2. A black polished wall ink comprising a black pigment, water, and a water-soluble synthetic paste or a water-soluble natural paste.