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    • 52. 发明申请
    • A THERMALLY SHRINKABLE PLASTIC FILM AND AN ITEM COMPRISING THE SAME
    • 一种热收缩塑料薄膜和包含该塑料薄膜的项目
    • WO2015004313A1
    • 2015-01-15
    • PCT/FI2013/050758
    • 2013-07-12
    • UPM RAFLATAC OY
    • MITCHELL, NoelMANNER, Matti
    • B32B27/32B65D75/00
    • B32B27/325B32B27/32B32B2307/516B32B2307/736B32B2519/00
    • A monoaxially oriented thermally shrinkable plastic film, having a temperature dependent shrinkage E(~0, wherein the shrinkage of the thermally shrinkable plastic film, after a thermal treatment such that the temperature of the thermally shrinkable plastic film has been T=98 °C is less than -0.35. Moreover, the shrinkage, after a thermal treatment such that the temperature of the thermally shrinkable plastic film has been T=65 °C is greater than -0.10. The film has a relative temperature dependent shrinkage ErO~) such that the difference between the values of the relative temperature dependent shrinkage for at least one pair of temperatures T2 and Ti having a difference T2-Ti=15 °C is more than 50 percentage points; wherein the lower of the two temperatures of the pair, T1( is from 65°C to 70 °C. An item comprising a body (100) and a loop (22) of a plastic film, which loop (22) encircles a part of the body, wherein the plastic film has been made by thermally treating the thermally shrinkable plastic film.
    • 具有温度依赖性收缩率E(〜0)的单轴取向热收缩塑料膜,其中热收缩塑料膜的收缩在热处理之后使得热收缩塑料膜的温度已经为T = 98℃是 小于-0.35,此外,在热处理后,使热收缩性塑料膜的温度为T = 65℃的收缩率大于-0.10,该膜具有相对温度依赖性收缩率ErO〜),使得 对于至少一对温度T2和T2-Ti = 15℃的Ti的相对温度依赖性收缩的值之间的差异超过50个百分点; 其中所述对的两个温度中的较低的温度T1(从65℃到70℃),包括塑料膜的主体(100)和环(22)的物品,所述环(22)环绕一部分 其中塑料薄膜是通过热处理热收缩塑料薄膜制成的。