What is pet thermal transfer filmWhat is pet thermal transfer film
1. What is thermal transfer film
Thermal transfer film is to pre-print the pattern on the surface of the film. In fact, it refers to a graphic with a release agent, protective layer, adhesive and base film as a carrier. Under the combined action of heating and pressure, the graphic Detach the carrier base film, and firmly transfer the special function printing film attached to the surface of the substrate. The substrate of the film is opp, pet, pvc, cp, and the most widely used is pet.
2. Material characteristics of pet thermal transfer film:
① Has good mechanical properties, impact strength is 3 to 5 times that of other films, good folding resistance.
②Resistant to oil, fat, dilute acid and alkali, and resistant to most solvents.
③ Has excellent high and low temperature resistance, can be used for a long time in the temperature range of 120 ℃, short-term use can withstand 150 ℃ high temperature, can withstand -70 ℃ low temperature, and high and low temperature has little effect on its mechanical properties.
④ Low gas and water vapor permeability, that is, it has excellent gas barrier, water, oil and odor properties.
⑤High transparency, can block ultraviolet rays, good gloss.
⑥ Non-toxic, odorless, good hygiene and safety, can be directly used for food packaging.
The pet film is most widely used because of its good stability, tension and thin film thickness deviation.
3. Application of pet thermal transfer film
Thermal transfer film is suitable for hot stamping on the plane, curved surface, special-shaped, cylindrical surface and conical surface of plastic, metal, leather, ceramics, wood and other products. Give gifts, food packaging, signs and other industries and packaging surface printing and decorating.
Such as the common plastic water cups in our lives, the beautiful thermal transfer patterns on it are transferred with the thermal transfer film of the water cup.
4. Safety of thermal transfer film
As consumers pay more and more attention to food safety issues and daily necessities safety issues, the quality and safety issues of thermal transfer films have also received much attention in the industry. From the base film of the thermal transfer flower film to the ink, it needs to pass a very comprehensive inspection.