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    VAPOR DEPOSITED BIAXIALLY ORIENTED POLYESTER FILM
    6.
    发明专利
    VAPOR DEPOSITED BIAXIALLY ORIENTED POLYESTER FILM 失效

    公开(公告)号：JPH10119172A

    公开(公告)日：1998-05-12

    申请号：JP22650997

    申请日：1997-08-22

    Applicant: TORAY INDUSTRIES

    Inventor： KATAOKA NORIYASU ,  SUMIYA TAKASHI ,  KAWAMURA MASAJI

    IPC: B65D65/40 ,  B29C55/12 ,  B29K67/00 ,  B29L7/00 ,  B29L9/00 ,  B32B7/02 ,  B32B9/00 ,  B32B27/36 ,  C23C14/08

    Abstract: PROBLEM TO BE SOLVED: To upgrade gas barrier properties and moistureproofness by forming a vapor deposited layer having a specific thickness on a surface of a specific shape at least on one surface. SOLUTION: A vapor deposited layer having a thickness of 500 to 15000nm is provided on a surface satisfying 0.1nm ) at least on one surface. The deposited layer uses metal or metal oxide, and the metal is preferably aluminum in view of food hygien, cost and stability of a vapor deposited film. And, the oxide is preferably aluminum oxide film in view of cost, production facility and coloring. The vapor deposited surface side surface of the biaxially oriented polyester film preferable has wetting tension of 45mN/m or more, and wetting tension of a non vapor deposited surface is preferably 45mN/m or more. To form the metal vapor deposited film, a vacuum vapor deposited method, sputtering method, ion plating method or chemical vapor deposition method is used.

    EASILY ADHERENT POLYPROPYLENE FILM
    9.
    发明专利
    EASILY ADHERENT POLYPROPYLENE FILM 失效

    公开(公告)号：JPS5822134A

    公开(公告)日：1983-02-09

    申请号：JP12139081

    申请日：1981-08-04

    Applicant: TORAY INDUSTRIES

    Inventor： YOSHII TOSHIYA ,  KAWAMURA MASAJI

    IPC: B29C65/00 ,  B29B11/00 ,  B29C61/00 ,  B29C71/04 ,  B29D7/00 ,  B29D7/01 ,  B32B27/10 ,  C08J7/00

    Abstract: PURPOSE:To produce the polypropylene film having superior adhesion, slipperiness, transparency, luster and antistatic property and suitable for preparation of sacks wherein the outer layer of the film has the atomic constitution-ratio of O/C and N/C respectively in a specified range. CONSTITUTION:In this good adhesive PP film, atomic constitution-ratio (ratio of number of atoms) on the surface layer of at least one side of a film is specified such that O/C is in the range of 0.15-0.35 and N/C is in the range of 0.005- 0.08. By such atomic constitution-ratio, (A) it is well adhesive and suitable for making a seak by adhesion, (B) it has good workability on account of sufficient slipperiness, (C) it has good workability due to its superior antistatic property, and (D) the apparance of the box may be finished finely by its transparency and its luster, when the sack is made by adhesion. Owing to said superior properties, it is utilized for print laminate, packaging material with the print made on the film itself, the base material for adhesion tape and so on, besides it is suitable for the sack-adhesion.

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