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    Thermo-shrinkable polyester film
    2.
    发明授权
    Thermo-shrinkable polyester film 有权
    热收缩聚酯薄膜

    公开(公告)号：US5985387A

    公开(公告)日：1999-11-16

    申请号：US240024

    申请日：1999-01-29

    申请人： Kuniharu Mori ,  Mitsuo Inoue ,  Shinichiro Okumura ,  Tsutomu Oko ,  Norimi Tabota ,  Masatoshi Hashimoto ,  Hideki Ito ,  Seizo Takabayashi ,  Tsutomu Isaka

    发明人： Kuniharu Mori ,  Mitsuo Inoue ,  Shinichiro Okumura ,  Tsutomu Oko ,  Norimi Tabota ,  Masatoshi Hashimoto ,  Hideki Ito ,  Seizo Takabayashi ,  Tsutomu Isaka

    IPC分类号： B29C61/00 ,  B29C61/06 ,  B29C63/42 ,  C08J5/18 ,  B65B53/00

    CPC分类号： C08J5/18 ,  B29C61/003 ,  B29C61/0608 ,  B29C63/42 ,  B29C63/423 ,  B29K2067/00 ,  C08J2367/02 ,  Y10T428/1328 ,  Y10T428/26 ,  Y10T428/269

    摘要： In a thermo-shrinkable polyester film, the thermal shrinkage ratio in a main shrinking direction is about 20% or more after being treated in water of about 70.degree. C. for about seconds, about 35 to about 55% after treated in water of about 75.degree. C. for about 5 seconds, and about 50 to about 60% after being treated in water of about 80.degree. C. for about 5 seconds. After the film is shrunk by about 5% by treatment in water of about 75.degree. C. for about 10 seconds, the probability of the elongation at rupture of the film in the direction perpendicular to the main shrinking direction being about 20% or less, is about 10% or less. The ratio of .tau..sub.1 /.tau..sub.2 is about 0.05 to about 0.45, where .tau..sub.2 is the stress of shrinkage in a main shrinking direction of the film at about 90.degree. C., and .tau..sub.1 is the stress of shrinkage in a direction perpendicular to the main shrinking direction of the film at about 90.degree. C. The sealing strength of the film is about 1.2 kg/15 mm of width or more.

    摘要翻译： 在热收缩性聚酯膜中，在约70℃的水中处理约秒之后，主要收缩方向的热收缩率为约20％或更多，约35至约55％在约 在约80℃的水中处理约5秒钟，约75℃至约5秒，约50至约60％。 通过在约75℃的水中处理约5％的膜约10秒后，膜在垂直于主收缩方向的方向上的断裂伸长的概率为约20％以下， 约为10％以下。 tau 1 / tau 2的比例为约0.05至约0.45，其中τ2是在约90℃的膜的主收缩方向上的收缩应力，τ1是在垂直方向上的收缩应力 到约90℃的膜的主收缩方向。膜的密封强度为约1.2kg / 15mm的宽度或更大。

    Heat-shrinkable polyester films
    3.
    发明授权
    Heat-shrinkable polyester films 失效
    热收缩聚酯薄膜

    公开(公告)号：US06447925B1

    公开(公告)日：2002-09-10

    申请号：US09678384

    申请日：2000-10-03

    申请人： Norimi Tabota ,  Masatoshi Hashimoto ,  Seizo Takabayashi ,  Hiroshi Nagano ,  Atsuhiko Ohtsuka

    发明人： Norimi Tabota ,  Masatoshi Hashimoto ,  Seizo Takabayashi ,  Hiroshi Nagano ,  Atsuhiko Ohtsuka

    IPC分类号： B32B2736

    CPC分类号： C08J5/18 ,  B29D7/01 ,  B29K2067/00 ,  B29K2995/0049 ,  C08J2367/02 ,  Y10S428/91 ,  Y10T428/1328 ,  Y10T428/31786

    摘要： A heat-shrinkable polyester film having a shrinkability in hot water (hereinafter referred to as a hot-water shrinkability) at 95° C. for 10 seconds ranging from 30% to 50% in at least one direction (hereinafter referred to as direction (A)) and ranging from 25% to 45% in a direction (hereinafter referred to as direction (B)) perpendicular to said at least one direction, wherein a difference &Dgr;HS between the hot-water shrinkability in direction (A) and the hot-water shrinkability in direction (B) (ie., &Dgr;HS=|hot-water shrinkability in direction (A)—hot-water shrinkability in direction (B)|) is 10% or smaller, is useful as a wrapping material, mainly as a covering material for the openings of vessels used for packing noodles, puddings, salads, and other foods.

    摘要翻译： 在95℃下在至少一个方向上在30％至50％范围内（以下称为方向（以下称为方向性（以下称为热收缩性） （A）），并且在垂直于所述至少一个方向的方向（以下称为方向（B））为25％至45％，其中方向（A）的热水收缩率与热 方向（B）（即DELTAHS = |方向（A） - 热收缩方向（B）|的热水收缩率）方向（B）的水收缩率为10％以下，主要用作包装材料 作为用于包装面条，布丁，沙拉和其他食品的容器开口的覆盖材料。