1. The key to the thin and thick symmetry of the vacuum bag is the thickness and symmetry of the composite front film. In other words, the reason why it is light and thin is the prerequisite for improving its quality.
2. The high barrier properties of the vacuum bag plastic film are closely related to the thickness of the plastic film.
3. The uniformity of the thickness of the plastic film of the vacuum bag endangers the tensile characteristics of the plastic film machinery and equipment. The aluminum foil bag plastic film with good thickness uniformity can obtain good packaging printing accuracy and composite quality.
4. For the same inner material, the greater the thickness of the vacuum bag film, the higher the start-stop heat sealing temperature, and vice versa. That is to say, the thickness of the vacuum bag film is uniform, and uniform pinning quality can be obtained, and some hidden dangers of heat sealing can be prevented.
