1. Preparation of raw materials

Prepare The Base

There are many types of reflective heat transfer film carriers, among which PET is widely used, which has the characteristics of stable size, uniform tension, high temperature resistance, and good peeling performance. Especially in the reproduction of tone originals, it has its obvious advantages. At the same time, check the flatness of the film, whether there are ribs, ruffles, etc. that do not meet the quality requirements.

Prepare A Separating Agent

The mold release agent is a low-viscosity transparent resin with mold release, film-forming properties and adhesion. Because the solvent in the release agent is volatile, care should be taken to control the viscosity when coating, that is, to control the solid content of the release agent, which is generally controlled at about 23%. When the solid content is lower than 19%, the heat transfer effect after coating is not ideal. In addition, pay attention to the light transmittance of the release agent, otherwise it will affect the printing effect.


Ink Ready

Heat transfer printing ink belongs to gravure printing ink, and its drying mainly depends on the volatilization of solvent. After the base film is determined, the base film can be selected according to the use of the printed product, the properties of the printed material or the requirements of the building board. Check ink fineness, viscosity, hue, tinting strength and other indicators to see if it fully meets the printing quality requirements.

 
Glue Mixing Process

 
The adhesive for heat transfer is hot melt adhesive, which is a colorless transparent or light yellow viscous liquid. After the coating film dries, the film is transparent. On the surface coated with release agent and ink, it has excellent composite fastness and flexibility, abrasion resistance, water resistance, acid and alkali resistance and other medium resistance and weather resistance.Yishi Reflective is the best reflective heat transfer film manufacturer, and it has achieved standards and professionalism in the preparation of raw materials and the production process.