Preparation method of blue disperse dye composition

Abstract

The invention discloses a preparation method of a blue disperse dye composition. The method can be conducted according to a method I or a method II. The method I comprises mixing a dye, a dispersant, and water, performing micro-granulation, and performing spray-drying to obtain the composition. The method II comprises micro-granulating components of the dye in the presence of a dispersant and water, performing spray-drying, and performing mixing to obtain the composition. The mass ratio of the dispersant to the dye is in a range from 0.35:1 to 5.0:1. The dye comprises 15-85% of a component B and 15-85% of a component C. The percentage of each component is a mass percentage of each component to the dye. The component B is one or more kinds of a compound 2, and the component C is one or more kinds of a compound 3, wherein the compound 2 and the compound 3 are shown in the description. The preparation method is simple to operate, and the prepared composition is bright-colored, is excellent in alkali resistance and light fastness, and can be used for a strong-base-resistant and super-base-resistant dyeing and one-bath scouring method or bleaching and dyeing and one-bath scouring method, a disperse / reactive printing process in one paste, and an alkaline burnt-out printing process.

Description

Technical field [0001] The invention relates to a preparation method of a blue disperse dye composition. Background technique [0002] Polyester fiber and its blended fabric have important applications in current high-end fabrics, and the applicable dyes are disperse dyes. When disperse dyes are applied to the dyeing of polyester fiber products, acid dye bath dyeing is generally used, but acid dyeing is prone to staining spots, color spots, and dyeing flowers caused by oligomer contamination. The disperse dye alkaline dyeing process can effectively remove the oligomers produced during the dyeing process, and is expected to shorten the production process, and has the characteristics of low consumption, high efficiency, energy saving and time saving. Chinese patents CN200910101329.6, CN201010240844.5, CN201110043597.4, and CN201210442433.3 all relate to disperse dye compositions suitable for alkaline dyeing. [0003] Blue is an important color in the application of disperse dyes, a...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a blue disperse dye in order to overcome the tedious operation of the preparation method of the existing blue disperse dye composition, and the defects of the obtained composition such as dull color, poor alkali resistance, and poor light fastness. The preparation method of the composition, the method is simple to operate, and the composition prepared by the method has bright color, excellent alkali resistance and good light fastness, and can be used for one-bath scouring and dyeing or bleaching of strong alkali and super alkali resistance Processing of one-bath method, disperse reactive homogeneous printing and alkaline burn-out printing process

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