Topological composite film heat sublimation transfer printing digital paper

Abstract

The invention belongs to the technical field of heat sublimation transfer printing, and discloses a topological composite film heat sublimation transfer printing digital paper. The topological composite film heat sublimation transfer printing digital paper comprises a base material paper layer (1), a topological composite film layer (2), and a surface channel layer (3) successively from bottom totop; the topological composite film layer (2) is composed of a topological network resin and a porous compound; the topological network resin is an interpenetrating network resin formed via crosslinking of a composition of isophorone diisocyanate and triphenylmethane-4,4',4''-triisocyanate with a composition of carboxymethylcellulose sodium and acrylic resin; the topological composite film layer (2) is capable of expanding to intercept dyes, and realizing multi-layer separation of dye molecules and water molecules, and at the same time, the network intensity of the topological composite film layer (2) is adopted to improve separation performance; the topological composite film layer (2) is directly connected with the base material paper layer (1) so as to realize rapid drying of ink. The topological composite film heat sublimation transfer printing digital paper is of a double-layer structure; the production technology is simple; printing instant drying, rapid ink absorption, and transfer printing effects are excellent, and rapid printing and high efficiency manufacturing requirements are satisfied.

Description

technical field [0001] The invention relates to the technical field of thermal sublimation transfer printing, in particular to digital paper for thermal sublimation transfer printing of a topological composite film. Background technique [0002] Thermal transfer printing technology refers to printing text, graphics and other content on plain paper or high-precision printing paper with thermal printing ink, and then heating it to 180-230°C within a few minutes by the corresponding thermal transfer equipment A special process in which the colors of images are transferred to different materials realistically. Transfer printing digital paper is the carrier of pattern and ink. When heated to 180-230°C, the pattern is transferred and printed on different material media, which basically ensures that all dye molecules are transferred to the media material. [0003] Patent application number 201410849229.2 is a self-adhesive fast-drying thermal sublimation transfer digital paper, wh...

AI Technical Summary

Problems solved by technology

[0007] The present invention aims at the disadvantages of the three-coat structure and the relatively complicated coating process and relatively low coating yield in the prior art, and provides a topological composite film thermal sublimation transfer digital paper with a two-layer structure. Printed digital paper has the characteristics of instant drying, fast ink absorption, and good transfer effect, and the coating process is simple, and only two coating heads are needed to realize production

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