The main factors affecting quality of non silicon release film are as follows:

1. Coating head

At present, the coating head widely used by domestic silicon coating enterprises mainly includes scraper/Anilox/roller coating/multi roller coating. Just slightly improve the appearance and performance. Essentially, improvements should not exceed 20%. However, foreign countries use micro forming rollers with a certain angle for coating, which improves transparency from an optical perspective. Meanwhile, the possibility of rainbow lines has been completely eliminated.

2. Composition of coating agent formula

At present, the product commonly known as 120 # solvent oil is widely used in silicon coating enterprises in China. However, from the perspective of non silicon release films used in coatings, the better solvents should be toluene, xylene, and even some special solvents. Toluene and xylene can cause a certain degree of physical harm to production line operators, and protective measures need to be taken.

Organic silicon release agents and 120 # solvent oil are not universally compatible, and some organic silicon release agents still require special solvents to cooperate with them during use.

3. Drying channel

A good baking tunnel is also the key to the success of non silicon release films. The design of many key points such as the outlet and angle of the drying tunnel also determines the quality equipment of the production line. The manufacturer is also unaware of the operating environment and process. Otherwise, they will not manufacture equipment, but materials.

4. Temperature curve

A reasonable temperature curve is also the core of solving the appearance problem of non silicon release films. What is the temperature when entering the oven? What temperature is most conducive to solvent evaporation? What temperature is most favorable for curing silicone resin? What temperature is most conducive to the stability of the release layer? These are all crucial. Many domestic equipment manufacturers equip coating machines with the most primitive thermal relays. During the production process, temperature fluctuations are significant.

5. Winding environment

The quality of winding also has a significant impact on the quality. Some equipment manufacturers, due to outdated manufacturing processes, either use high tension to roll up pet separation membranes (which are not easy to roll off), but the membranes deform and get injured. In some cases, the tension during film wrapping is very low, which makes it easy for the film to run and be damaged. A reasonable control system is crucial. Being able to finish neatly on the coating machine is the most important. Without certain operating experience and high-quality equipment, these are all in vain.

The above is the main factors that affect the appearance quality of PET non silicon release films introduced to you. If you are not familiar with this, please come to consult our website, and we will have professional personnel to explain it to you.