Overview of glass thermal transfer film

1-Overview of glass thermal transfer film
Glass thermal transfer film is a type of thermal transfer film, and it is also the most expensive series of thermal transfer films. It is suitable for various regular-shaped glass products, such as glass cups, flat tempered glass products, various glass panels, etc.

With the continuous development of thermal transfer technology and the gradual popularization of glass thermal transfer technology, glass thermal transfer film is moving from the original unpopular series to the conventional series, which is undoubtedly a blessing for many glass industries.

Glass thermal transfer film can make up for many shortcomings of ordinary printing technology to a certain extent. The surface decorative pattern of glass products is no longer a simple line or color block. Glass thermal transfer film makes the surface of the product rich in pattern and bright in color, which greatly improves the surface decoration effect of glass products. At the same time, it also greatly increases the added value of the product, and writes a new chapter for the surface decoration of glass products.

2-Glass thermal transfer film printing process
The process of using a gravure printing machine to print a pattern image onto the glass thermal transfer film base film can be divided into the following 6 processes:

1. Glass thermal transfer film coating release agent process; 2. Glass thermal transfer film printing process; 3. Glass thermal transfer film coating glue process; 4. Glass thermal transfer film re-inspection process; 5. Glass thermal transfer film striping process; 6. Glass thermal transfer film packaging process.

3-Glass thermal transfer film transfer process
The process of transferring the image and text on the glass thermal transfer film to the glass product through the thermal transfer machine is as follows:

1) After installing and debugging the glass product thermal transfer fixed mold, start debugging the parallelism and verticality of the thermal transfer machine. After the temperature of the thermal transfer machine rises to the set temperature, the glass thermal transfer film processing operation of the glass product can be carried out.

2) When using glass thermal transfer film for transfer process, you should pay attention to whether the circumference of the rubber wheel on the hot stamping machine is longer than the length of the glass thermal transfer film transfer hot stamping pattern, because the glass has excellent thermal conductivity, which will absorb a lot of heat from the hot stamping rubber wheel. When the circumference of the hot stamping rubber wheel is less than the length of the hot stamping area, the hot stamping effect will be affected due to uneven heating of the rubber wheel.

4-Key Technology of Glass Thermal Transfer Film
Glass thermal transfer film printing and glass thermal transfer film transfer process are the main components of glass thermal transfer film technology. Among these links of the entire glass thermal transfer film technology, the back glue (glue) of the glass is the decisive link of the whole process.

Adhesion is almost the only standard and the most difficult technical problem to solve in measuring the quality of glass thermal transfer film technology. Glass back glue has become a stepping stone for this technology.

At present, the glass thermal transfer film technology in the thermal transfer industry is uneven, and most manufacturers use imported glue from abroad, but the quality of glass thermal transfer printed films is also unstable.

Some manufacturers with technical research and development capabilities have developed their own glass adhesive with excellent adhesion and stable quality, thus better ensuring the quality of glass thermal transfer film.