2results about How to "High tinting strength" patented technology

The application belongs to the technical field of functional pigments, and particularly relates to a preparation method of high-light-resistance composite pigments. The preparation method of the application is that: after pretreatment and cleaning, hexagonal boron nitride is obtained to be modified boron nitride nanosheet, and then the modified boron nitride nanosheet is compounded with organic pigments to obtain ideal high-light-resistance composite pigments. The modified boron nitride nanosheet used in the application can be better combined with the organic pigments by using the principle of entropy increase, the rich electron boron-nitrogen plane of the hexagonal boron nitride and the aromatic conjugated system of the lithol red molecules produce pi-pi stacking interaction, and then the two are driven to self-assemble to form high-light-resistance composite pigments, and the high-light-resistance composite pigments form a structure that is compact. The high-light-resistance composite pigments obtained by the application still maintain the chemical structure and gloss of the original organic pigments, and have excellent stability and good light resistance, and the problem of poor light resistance of the organic pigments is solved.

The invention discloses a disperse dye embroidery-imitating printing process for acetate fiber fabric, which comprises the following steps: printing and steaming the acetate fiber fabric with a printing dye, washing with water, and setting at high temperature to obtain the embroidery-imitating printed acetate fiber fabric. The hydroxyl group can form a hydrogen bond with hydroxyl oxygen on acetate fiber acetoxy, the cyano group is a strong polar group and can interact with ester group polarity of acetate fiber, meanwhile, the modified dye molecule contains a large number of azo groups, the saturation degree and tinting strength of the dye can be improved, meanwhile, the modified dye molecule contains an organic silicon chain segment, the hydrophobicity of the dye can be improved, and the dye can be used for dye dyeing. And after multiple times of washing, the dye on the surface does not fade and fall off, and meanwhile, the film layer can be endowed with soft and smooth characteristics, so that the printed part is softer and is closer to the touch feeling of high-quality embroidery.