79295-99-1Relevant academic research and scientific papers
Disperse dye composition, and preparation method and application thereof
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Paragraph 0102-0104; 0123, (2017/08/28)
Disclosed are a disperse dye composition, and a preparation method and application thereof. The disperse dye composition comprises a component A composed of one or more of compounds shown as a formula (1) (please see the specifications for the formula), a component B composed of one or more of compounds shown as a formula (2) (please see the specifications for the formula), forbidden aromatic amine compounds, chlorinated phenols, chlorobenzene and chlorotoluene, optional auxiliaries, and other unavoidable impurities. The total content of the forbidden aromatic amine compounds is 10 ppm or below, the respective content of the various chlorinated phenols is 0.5 ppm or below, and the total content of the chlorobenzene and chlorotoluene is 1 ppm or below. The various environment protection indexes of the disperse dye composition meet the requirements of Oeko-Tex Standard 100(2016). In addition, after fabric is dyed through the disperse dye composition, the dyed fabric meets the baby level requirements of Oeko-Tex Standard 100(2016).
Preparing method of disperse blue dye
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Paragraph 0028; 0029; 0030; 0031; 0032; 0033; 0034-0039, (2017/07/21)
The invention relates to a preparing method of disperse blue dye. The preparing method includes the following steps that 1), 2,4-binitro-6-chloroaniline is added into a sulfuric acid solution containing sodium nitrite to carry out diazo reaction so as to obtain diazonium liquid; 2), water and solvent are added into a coupling reactor to obtain reaction base solution, and the mass fraction of solvent in the reaction base solution is 10-20%; 3), 2-methoxy-5-acetamido-(diethyl) aniline is added into the reaction base solution, pulping is carried out when the pH value is adjusted to be 2-4, the temperature is reduced to minus 5-0 DEG C, the diazonium liquid with the volume amount accounting for 30-60% is added for coupling reaction, water continues to be added, remaining diazonium liquid is added to obtain reaction solution, coupling reaction continues to be carried out until coupling is finished, and the disperse blue dye is obtained through filtering and cleaning; the mass fraction of the solvent in the reaction solution is 1-10%. The disperse blue dye prepared through the preparing method is fine in crystal, high-temperature dispersity of the dye is improved, conventional commercialization is achieved, and the product requirement is met.
Azo disperse dye mixtures
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Page column 13, (2010/02/05)
The present invention refers to a dye mixture comprising an azo dye of the formula (I) wherein each of X and X1independently is chlorine or bromine; R1is absent or is C1-4alkyl; and each of R2and R3independently is hydrogen, C1-6alkyl or cyanoethyl; but when R1is absent, R2is n-butyl or cyanoethyl and R3is cyanoethyl; and further dye components according to claim 1, a method for the preparation of such mixtures and a method for coloring a synthetic textile material or fiber blend thereof using such mixtures.
Azo disperse dye mixtures
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Example 3, (2010/11/30)
The present invention refers to a dye mixture comprising an azo dye of the formula (I) whereineach of X and X1 independently is chlorine or bromine;R1 is absent or is C1-4 alkyl; andeach of R2 and R3 independently is hydrogen, C1-6 alkyl or cyanoethyl;but when R1 is absent, R2 is n-butyl or cyanoethyl and R3 is cyanoethyl;and further dye components according to claim 1,a method for the preparation of such mixtures and a method for colouring a synthetic textile material or fibre blend thereof using such mixtures.
