NEWS CENTER

2023-11-29



Pad printing is an indirect concave adhesive head printing technology, through the production of a specific steel plate pattern, the use of adhesive head will be etched pattern content transferred to the product of the printing technology, has become a variety of objects on the surface of the printing and decoration of a major method.

Principle: The process is very simple, the first design will be etched on the printing plate, the etching plate coated with ink and then, through the silicone head will be most of the ink transfer to the printed object.

Principle: The process is very simple, the first design will be etched on the printing plate, the etching plate coated with ink and then, through the silicone head will be most of the ink transfer to the printed object.
Thermal transfer film is a technique whereby the design and adhesive are printed on a heat-resistant film, and the design (ink layer) and adhesive layer are adhered to the glass bottle by heat and pressure. This process is mostly used on plastic and paper, and is less used on glass wrapped bottles.

Process flow: 1. color draft; 2. printing film; 3. heat transfer; 4. baking.

Thermal transfer film is generally divided into five layers, the surface of the PET film layer as a carrier, the separation layer to play the role of heat suitable for shedding. The protective layer plays the role of protecting the ink layer, the ink layer for pattern printing, and the adhesive layer for the adhesion layer.

As the film printing stage can be a multi-color pattern into a picture, in the glass bottle transfer operation, you can transfer the existing pattern to the glass bottle at once. Compared with the cumbersome registration of multi-color screen printing, it can greatly shorten the printing case work and reduce the loss of materials due to printing errors. Nowadays, the labor cost is rising, and the customers have high quality requirements for accurate registration, so the advantages of thermal transfer printing are very obvious in multi-color manuscripts.
In addition, at the stage of film printing, CMYK printing is routinely used, and spot-color printing can also be done according to customer requirements. The effect of thermal transfer printing, more realistic, high color reproduction, and can achieve gradient color. Thermal transfer due to the image of the relationship between the heat baking, the finished image color will be more solid than the water transfer of the image, will not be easy to appear out of color, with corrosion resistance, aging resistance, abrasion resistance, high temperature resistance and other good performance.

In the processing of glass bottles, compared with water transfer printing and screen printing, thermal transfer printing has more obvious advantages.
In general, compared with the traditional water transfer printing and screen printing, thermal transfer printing advantages are: less labor consumption, high degree of automation, fast, accurate color registration, high yield, less environmental pollution. However, the shortcomings of thermal transfer printing are that it requires high regularity of the substrate and needs to work on the more regular position. Square and cylindrical bottle processing is very favorable. Shaped bottles need to be analyzed according to the entity to confirm the position that can be processed. Thermal transfer development, in addition to ordinary color powder ink, but also the development of more new types, pearlescent ink film and mirror ink thermal transfer film with hot stamping thermal transfer film. Looking to the future, the use of thermal transfer on glass bottles will be more extensive.