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Paper Cup Bottom Permeability
Aug 16, 2017

Paper Cup Bottom Permeability

1. Classification of release paper: You can press the plastic release paper and no plastic release paper classification; can also be classified by type of silicone release paper and non-silicone release paper. There is a plastic release paper, because the release agent has a certain permeability, if there is no certain barrier, the release agent will penetrate into the paper inside, resulting in poor curing and release agent use too large (too high) and many other bad factor. So the need to do the plastic coating on the paper (commonly known as Laminating), the domestic general use of polyethylene (PE) particles for Laminating, requiring melting index of 7 or so, domestic PE particles generally choose Yanshan Petrochemical 1C7A. Divided into single plastic release paper and double plastic release paper; no plastic release paper, mainly Granaxin, CCK and other special treatment of other release paper.

1. Leaf release paper

     After the base paper through the membrane, in the leaching surface coated with release agent, produced by the release paper.

Because the paper surface with paper wool and fiber, so the membrane must be a certain amount, in order to ensure that there is no penetration point in order to ensure that silicone oil will not penetrate into the paper, in order to ensure that there will be no dislocation. Generally, the amount of glued paper is 16 grams per square meter, and it is said that the Wenzhou area has made 11 to 13 grams per square meter, which is close to the data of foreign advanced equipment. Theoretically, as long as the tape can be stripped from the release paper, and then the amount of low leaching is allowed.

      Laminating release paper is divided into single and double leaching. General single-sided release paper is a single leaching, of course, there are double-leaching single-sided release paper, because the surface of the surface of the film is generally thicker of 20 grams, the surface is generally thinner 15 grams, such a release paper comparison smooth.

If the amount of double-sided membrane are 22 grams of coated paper, it is more suitable for double-sided release paper.

Lining release paper are generally selected all wood pulp paper, especially the electronics industry. If you choose straw pulp paper, in the die-cutting time there will be a lot of paper and easy to break edge.

      The whole wood pulp paper is generally called kraft paper, such as the nature of kraft paper (commonly known as: the cattle), white kraft paper (commonly known as: white cattle), yellow kraft paper (commonly known as: Japan Huang Cai cattle), blue kraft paper (commonly known as: Indonesian blue cattle).

Of course, it is also useful to make all the pulp paper to make the base paper, the more useful photographic paper to do the base paper, and with coated paper and white paper, cattle card, milk card and so on paper to do the base paper.