Preparation method for 3119 light fast red BBS

A technology of sunfast red and B acid, applied in the direction of organic dyes, etc., can solve the problems of artificial waste, high energy consumption, poor dispersibility, etc., and achieve the effect of avoiding high energy consumption, avoiding artificial waste and good dispersibility.

CN102732054AInactive Publication Date: 2012-10-17WUJIANG TUNCUN PIGMENT PLANT

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Patent Information

Authority / Receiving Office: CN · China
Current Assignee / Owner: WUJIANG TUNCUN PIGMENT PLANT
Publication Date: 2012-10-17
Estimated Expiration: Not applicable · inactive patent

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Abstract

The invention discloses a preparation method for 3119 light fast red BBS. The method comprises the following steps: dissolving 2B acid and liquid alkali until a transparent solution is obtained, cooling the solution with ice, adding hydrochloric acid for acidification, adding a sodium nitrite solution, carrying out stirring for one hour, leaving an obtained mixture for subsequent usage, dissolving 2,3-acid, liquid alkali and water in a dissolving kettle until a transparent solution is obtained, placing the obtained transparent solution into a coupling kettle, adjusting the temperature and the volume of the transparent solution, adding a liquid diazonium solution for coupling, adding dissolved rosin soap after coupling is finished, adding strontium chloride for laking according to process time, carrying out washing in a filter press, drying a filter cake and grinding and packaging the filter cake to obtain a product. The product prepared by using the preparation method for 3119 light fast red BBS provided in the invention has good dispersibility, which enables waste of labor and high consumption of energy during production of plastics and EVA to be avoided and fracture of wires during spinning of chemical fibers to be reduced.

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Description

technical field

[0001] The invention relates to a preparation method of a pigment, in particular to a preparation method of 3119 fast red BBS. Background technique

[0002] 3119 Light Fast Red BBS is mainly used for plastic, EVA, and chemical fiber spinning. The dispersibility of 3119 Light Fast Red BBS currently on the market is not good, and it is difficult to apply downstream, which will cause plastic and EVA to go through many processes in the production process. In order to achieve uniformity, it needs to be rolled once to achieve uniformity, resulting in high energy consumption and labor waste, and in the process of chemical fiber spinning, the screen plate will be blocked due to poor dispersion, resulting in broken filaments. Contents of the invention

[0003] The technical problem to be solved by the present invention is to provide a method capable of preparing 3119 fast red BBS with good dispersibility.

[0004] The solution adopted by the present invention t...

Claims

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