Thermal dye sublimation transfer paper with high transfer rate and preparation method thereof

Abstract

The invention provides thermal dye sublimation transfer paper with a high transfer rate and a preparation method thereof. The thermal dye sublimation transfer paper comprises a base material layer, a first coating and a second coating which are sequentially stacked, wherein the base material layer is coated with the first coating, and the first coating is coated with the second coating. The first coating is prepared from the following components in parts by weight: 18-25 parts of sodium carboxymethyl cellulose, 50-65 parts of ureido mesylate, 9-18 parts of polyvinyl alcohol and 8-14 parts of acrylic ester. The second coating is prepared from the following components in parts by weight: 60-75 parts of a filler, 5-10 parts of a thickening agent, 1-5 parts of a buffering agent and 1-5 parts of a dispersing agent. The thermal dye sublimation transfer paper disclosed by the invention selects a micromolecular thermal dye sublimation functional material ureido mesylate with high performance as a main material. The thermal dye sublimation transfer paper has efficient dye release capacity, effectively weakens the negative influence of a high polymer material and a rigid filler on dye sublimation, and further greatly improves the transfer rate.

Description

technical field [0001] The invention relates to a transfer paper, in particular to a thermal sublimation transfer paper with high transfer rate and a preparation method thereof. Background technique [0002] At present, when the existing sublimation transfer paper is put into use, the final transfer rate is low and the production quality is not up to standard due to the penetration of the sublimation ink into the paper fiber and the incomplete sublimation of dye molecules. This is because the sublimation ink is a solid suspension of tiny particles. During the printing process, the polymer functional material dissolves in a small amount of water and forms a high-viscosity liquid locally, which is easy to wrap the dye particles in it, resulting in blocked dye sublimation, unable to sublimate completely, and easily resulting in a low transfer rate. At the same time, most of the common insoluble rigid fillers (such as silica) have a porous structure. When the dye is sublimated,...

AI Technical Summary

Problems solved by technology

b class="d_n">[0002] At present, when the existing sublimation transfer paper is put into use, the final transfer rate is often low due to the penetration of the sublimation ink into the paper fiber, incomplete sublimation of dye molecules, etc. , The production quality is not up to standard

This is because the sublimation ink is a solid suspension of tiny particles. During the printing process, the polymer functional material dissolves in a small amount of water and forms a high-viscosity liquid locally, which is easy to wrap the dye particles in it, resulting in blocked dye sublimation, unable to sublimate completely, and easily resulting in a low transfer rate

At the same time, most of the common insoluble rigid fillers (such as silica) have a porous structure. When the dye is sublimated, the porous structure of the material hinders the sublimation of the dye, slows down the sublimation, and easily causes a low transfer rate.

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