Working principle of fast dry sublimation paper

The working principle of fast dry sublimation paper mainly involves three key processes: ink absorption and fixation, drying, and thermal sublimation transfer, as follows:

1. Ink absorption and fixation

The surface of fast-dry sublimation paper has a special coating, which is composed of a variety of chemical substances and has good hydrophilicity and adsorption to thermal sublimation ink. When thermal sublimation ink is sprayed onto the surface of paper, a strong force will be formed between the molecules in the coating and the ink molecules, so that the ink is quickly absorbed and fixed on the surface of the paper. This process ensures that the ink will not flow or diffuse on the paper at will, laying the foundation for the subsequent drying and transfer process.

2. Fast drying

The coating also contains some special ingredients that can accelerate the volatilization of water. On the one hand, these ingredients can reduce the surface tension between the ink and the paper, making it easier to separate water from the ink system; on the other hand, they can form a structure similar to a "channel" on the surface of the paper, allowing water to evaporate into the air more quickly through these channels. Under the combined influence of these two effects, the ink can dry in a short time, leaving the dye molecules on the surface of the paper to form a stable pattern.

3. Sublimation transfer

When fast dry sublimation paper and the object to be transferred (such as fabric, ceramic, metal, etc.) are placed in the thermal transfer equipment and heated to a certain temperature, the dye molecules on the surface of the paper obtain sufficient energy. Due to the special properties of sublimation transfer paper and the effect of heat, the dye molecules will sublimate directly from solid to gaseous. At the same time, the molecular gap on the surface of the object to be transferred will become larger at high temperature, and the gaseous dye molecules will be able to smoothly penetrate the molecular structure of the object. When the temperature drops, the gaseous dye molecules re-condense into a solid state inside the object, thereby realizing the transfer of the pattern from the transfer paper to the surface of the object, and closely combine with the surface of the object to form a lasting and bright pattern.

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