A kind of preparation method of thermal sublimation ink based on disperse dye

Abstract

The invention relates to a preparation method of dye sublimation ink based on dispersive dye. The preparation method comprises the following steps of (1) sequentially adding water, a disperstant, a solvent and a surfactant into a container, shearing and dispersing; continuing to add the dispersive dye into the container, stirring, and dispersing, so as to obtain a first mixture; (2) using zirconium oxide beads with different particle sizes to grind the first mixture, wherein the particle sizes of the zirconium oxide beads are gradually reduced; (c) adding water into a product in step (b), centrifuging, separating to remove large-particle residues, and filtering, so as to obtain color paste, wherein the mass of water is same as that of the product; (d) mixing the color paste, a wetting agent, a flatting agent, a solvent and water, so as to prepare the dye sublimation ink. The preparation method can meet the use requirements under the conditions of simple technology steps, small amount of raw materials, and lower cost.

Description

technical field

[0001] The invention belongs to the field of thermal sublimation ink, in particular to a preparation method of thermal sublimation ink based on disperse dyes. Background technique

[0002] Dye-sublimation ink (also known as thermal transfer ink) is to make low-energy, easy-to-sublimate disperse dyes into digital printing inks, first print on transfer paper, and then transfer the corresponding pattern to chemical fiber cloth by heating and other methods In terms of material, it is very suitable for the market needs of individual development and the requirements of environmental protection.

[0003] The transfer printing pattern is bright in color and rich in layers, and its effect is comparable to that of printing. The difference is that thermal transfer is to sublimate thermal transfer ink at high temperature, penetrate into the surface of the medium, and form an image after sublimation. Therefore, no adhesive film will be formed on the surface of the mediu...

Examples

preparation example Construction

[0019] The preparation method of the thermal sublimation ink based on disperse dyes of the present invention comprises the following steps: (a) adding water, dispersant, solvent and surfactant to the container successively to carry out shear dispersion; Disperse dyes are stirred and dispersed to obtain a first mixture; the first mixture includes the following components in parts by weight: 15-25 parts of disperse dyes, 25-35 parts of solvents, 40-70 parts of water, and 0.5-5 parts of surfactants and 5-10 parts of dispersant; (b) using zirconia beads of different particle sizes to grind the first mixture, the particle size of the zirconia beads changing from large to small; (c) the step (b) The product is subjected to centrifugation, and the filtrate is obtained by filtration; water of the same quality as the obtained filtrate is added to the filtrate, and the large particle residue is removed to obtain a color paste; (d) the color paste is prepared with a wetting agent, a level...

Embodiment 1-14、 comparative example 1-3

[0024] Embodiment 1-14, comparative example 1-3 provide a kind of preparation method of sublimation ink based on disperse dye respectively, it comprises the following steps:

[0025] (a) add water, dispersant, solvent and tensio-active agent successively in container, carry out shear dispersion; Continue to add disperse dye in described container again, carry out stirring and disperse to obtain the first mixture (each component of the first mixture content as shown in table 1);

[0026] (b) Use zirconia beads of 0.6-0.8mm, 0.4-0.6mm, 0.25-0.35mm and 0.1-0.2mm in sequence to grind the first mixture for 2 hours each, so that the particle diameter of the dye particles is D90≤200nm, D80≤ 150nm and D75≤100nm;

[0027] (c) in the product of step (b) (the dyestuff solid content of product is about 20%), add the water of its same quality, centrifuge then and remove large particle residue, use three grades of in-line filters to filter, filter to obtain color paste ( The solid content...

technical field

[0001] The invention belongs to the field of thermal sublimation ink, in particular to a preparation method of thermal sublimation ink based on disperse dyes. Background technique

[0002] Dye-sublimation ink (also known as thermal transfer ink) is to make low-energy, easy-to-sublimate disperse dyes into digital printing inks, first print on transfer paper, and then transfer the corresponding pattern to chemical fiber cloth by heating and other methods In terms of material, it is very suitable for the market needs of individual development and the requirements of environmental protection.

[0003] The transfer printing pattern is bright in color and rich in layers, and its effect is comparable to that of printing. The difference is that thermal transfer is to sublimate thermal transfer ink at high temperature, penetrate into the surface of the medium, and form an image after sublimation. Therefore, no adhesive film will be formed on the surface of the mediu...

Examples

preparation example Construction

[0019] The preparation method of the thermal sublimation ink based on disperse dyes of the present invention comprises the following steps: (a) adding water, dispersant, solvent and surfactant to the container successively to carry out shear dispersion; Disperse dyes are stirred and dispersed to obtain a first mixture; the first mixture includes the following components in parts by weight: 15-25 parts of disperse dyes, 25-35 parts of solvents, 40-70 parts of water, and 0.5-5 parts of surfactants and 5-10 parts of dispersant; (b) using zirconia beads of different particle sizes to grind the first mixture, the particle size of the zirconia beads changing from large to small; (c) the step (b) The product is subjected to centrifugation, and the filtrate is obtained by filtration; water of the same quality as the obtained filtrate is added to the filtrate, and the large particle residue is removed to obtain a color paste; (d) the color paste is prepared with a wetting agent, a level...

Embodiment 1-14、 comparative example 1-3

[0024] Embodiment 1-14, comparative example 1-3 provide a kind of preparation method of sublimation ink based on disperse dye respectively, it comprises the following steps:

[0025] (a) add water, dispersant, solvent and tensio-active agent successively in container, carry out shear dispersion; Continue to add disperse dye in described container again, carry out stirring and disperse to obtain the first mixture (each component of the first mixture content as shown in table 1);

[0026] (b) Use zirconia beads of 0.6-0.8mm, 0.4-0.6mm, 0.25-0.35mm and 0.1-0.2mm in sequence to grind the first mixture for 2 hours each, so that the particle diameter of the dye particles is D90≤200nm, D80≤ 150nm and D75≤100nm;

[0027] (c) in the product of step (b) (the dyestuff solid content of product is about 20%), add the water of its same quality, centrifuge then and remove large particle residue, use three grades of in-line filters to filter, filter to obtain color paste ( The solid content...

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