Introduction to Coated Release Paper
Feb 18, 2021
After the base paper is coated, a release agent is coated on the coated surface to produce a release paper.
Because there are paper wool and fibers on the surface of the paper, the coating must reach a certain amount to ensure that there is no penetration point, to ensure that the silicone oil will not penetrate into the paper, and that there will be no peeling defects. Generally, the coating amount of coated paper is 16 grams per square meter. It is said that Wenzhou area has reached 11~13 grams per square meter, which is quite close to the coating data of advanced foreign equipment. Theoretically speaking, as long as the tape can be peeled from the release paper, the lower the amount of coating is allowed.
Laminated release paper is divided into single shower and double shower. Generally, single-sided release paper is single-coated, of course, there are also double-coated single-sided release papers, because the thicker coating on the release surface is generally 20 grams, and the non-released surface is generally thinner by 15 grams. Compared with this type of release paper smooth.
If it is coated paper with a double-sided coating amount of 22 grams, it is more suitable for double-sided release paper.
Laminated release paper generally uses wood pulp paper, especially in the electronics industry. If straw pulp paper is used, there will be a lot of paper scraps and easy edges during die cutting.
Wood pulp paper is generally called kraft paper, such as natural kraft paper (commonly known as: Benniu), white kraft paper (commonly known as Bainiu), yellow kraft paper (commonly known as Japanese yellow color cow), blue kraft paper (commonly known as Indonesian blue color cow). Of course, the base paper is made of wood-pulp double-adhesive paper, more photographic paper is used as the base paper, and the base paper is made of coated paper, white paper, cow card, milk card, etc.
As long as the paper-plastic fastness of the film can meet the requirements, as long as the film has no penetration points and the film is even and flat, it should be said that any paper can be used as base paper.
