Application, principle and material of thermal transfer film

Thermal transfer film is a kind of material widely used in printing, packaging, home decoration and other fields. It transfers the pattern or text to the substrate by thermal transfer technology, with clear pattern, bright color, strong durability and other good performance. Today, Wuxin Technology will introduce the principle, material, process and other aspects of thermal transfer film, so that we can better understand and apply thermal transfer film.

Principle of thermal transfer film

The thermal transfer film is usually made of polyethylene film as the bottom layer, the surface is printed with decorative layer, the surface is coated with protective layer, printing layer, release layer and adhesive layer, this multi-layer structure makes the thermal transfer film can be heated and pressurized by the thermal transfer machine, the exquisite and beautiful pattern texture of the surface of the thermal transfer film can be completely transferred to the substrate surface. After the transfer, the substrate surface presents a decorative effect of novel color and stable tone, so that the substrate surface has good performance such as heat resistance and light resistance.

Material for thermal transfer film

The material of thermal transfer film includes substrate, protective layer, printing layer, release layer and adhesive layer. The substrate layer is usually made of PET (polyethylene terephthalate) material; Printing layer can use ink, resin and other materials; The protective layer is overlaid on top of the decorative layer to protect the pattern texture from damage while improving the wear and weather resistance of the thermal transfer film; In the process of thermal transfer, the release layer separates the decorative layer from the polyethylene film, ensuring that the pattern and text can be transferred to the substrate smoothly; The adhesive layer is located at the bottom of the thermal transfer film, and by heating and pressurizing, the decorative layer forms a chemical bond with the substrate surface to achieve the transfer of the pattern. Different combinations of materials can achieve different results, for example, high definition pattern transfer can be achieved with thermal inks, and better durability can be achieved with thermal resins.

The process of heat transfer film

The process of heat transfer film includes design, printing, heat transfer and other links. First of all, you need to design, and the pattern or text that needs to be transferred is made into a printing layer. The printing layer is then printed onto the release layer to form a thermal transfer film. The heat transfer film is hot pressed with the substrate to transfer the pattern or text to the substrate. In practical applications, it is also necessary to consider the control of hot pressing temperature, pressure, time and other parameters, as well as the selection of substrates, surface treatment and other factors.

Application of heat transfer film

Thermal transfer film is widely used in printing, packaging, home decoration and other fields. In the field of printing, thermal transfer film can be used for printing paper, plastic, metal and other materials to achieve high definition, brightness and durability of the pattern transfer. In the field of packaging, thermal transfer film can be used for the packaging of food, drugs, cosmetics and other products to improve the beauty and quality of products. In the field of home decoration, the thermal transfer film can be used for the decoration of wallpaper, flooring, furniture and other materials to achieve personalized and fashionable effects.

Thermal transfer film is a kind of widely used material with good effect, which has great market potential. By understanding the principle, material, process and other aspects of the thermal transfer film, you can better apply the thermal transfer film and achieve better results.