JPS6096672A - Plasterer's marking ink for building - Google Patents

Abstract

PURPOSE:To provide the titled ink which can be easily dispersed in or mixed with cement or mortar, by soaking fine carbon powder with a surfactant having good wetting properties and dispersibility. CONSTITUTION:10pts.wt. wetting agent such as polyoxyethylene styrenated phenol and 10pts.wt.dispersant such as polyoxyethylene fatty acid polyhydric alcohol ester are added to 100pts.wt. fine carbon powder such as soot or carbon black. While adding water in portions, the mixture is thoroughly kneaded. When the pigment concn. reaches 40%, the mixture is dried with hot air and finely divided to obtain the desired ink.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the improvement of ink (black ink) used by plasterers for building walls, particularly black walls, black polished walls, mortar black walls, black soil openings, etc.

Traditionally commercially available plastering ink is fine carbon powder called powder smoke or gray ink, but these fine carbon powders have an extremely low bulk specific gravity bi and are not suitable for mixing into cement, mortar, plaster, etc. It scatters when mixed, floats and flows out when water is added, and not only does it require a large amount of ink to increase the degree of coloring, but it is also difficult to mix it with wall materials such as cement. When painted, cement, etc. stand out on the surface, making it difficult to obtain a high level of coloring power.

This invention solves the above-mentioned problems of conventional plastering ink, and its purpose is to create a plastering ink in which fine carbon powder can be easily dispersed and mixed into cement, mortar, etc.

This invention is characterized in that a dispersible and wettable surfactant is impregnated into fine carbon powder.

[Example 1] To 100 parts by weight of soot, add 1 part by weight of polyoxyethylene styrenated phenol as a wetting agent and 10 parts by weight of polyoxyethylene fatty acid polyhydric alcohol ester as a dispersing agent, and add water little by little to make a sufficient amount. When the pigment concentration reaches about 40%, the mixture is dried with hot air and the dried product is ground into fine powder.

[Example 2] Center of gravity of polyoxyethylene styrenated phenol 3 for carbon black 25 overlapped part! , polyoxyethylene VIW fatty acid poly1+Ii alcohol ester 2 parts by weight,
After adding 70 parts by weight of water and kneading thoroughly, the mixture was dried at about 40° C. for 5 hours and ground in a hammer mill to obtain a fine powder with a particle size of about 0.1 m.

This invention is as described above, and this plastering ink is made by impregnating fine carbon powder such as soot with a surfactant that has good wettability and dispersibility. When adding plastering ink to the main material such as cement, simply dissolve 3 to 5% of the plastering ink in the water used for mixing it with the main material such as cement, and knead it completely. It has the effect of being able to create a black wall or a black clay floor with a high degree of blackness without causing the buildup of cement or plaster to float.

Patent applicant: Sumi Renjo Co., Ltd. Open agent sickle 1) sentence 2

Claims (1)

[Claims] Plastering ink for buildings, characterized in that fine carbon powder such as soot is impregnated with a surfactant consisting of a dispersant and a wetting agent.