Thermoplastic resin film
    5.
    发明授权
    Thermoplastic resin film 失效
    热塑性树脂薄膜

    公开(公告)号:US5654394A

    公开(公告)日:1997-08-05

    申请号:US416177

    申请日:1995-04-04

    摘要: A thermoplastic resin film wherein the variation in thickness of the film in the longitudinal direction is not more than 5% and the ratio "Pw1/PwT" of the sum of spectral intensities of wave-number components present in the wave-number range of 0.15 to 0.45 (1/m) (Pw1) to the sum of spectral intensities of the full wave-number range (PwT) determined when a wave form of the variation in thickness is subjected to analysis of Fourier transformation is not more than 0.20, and wherein the variation in thickness of the film in the longitudinal direction is not more than 5% and the ratio "Pw2/PwT" of the sum of spectral intensities of wave-number components present in the wave-number range of 1.00 to 2.00 (1/m) (Pw2) to the sum of spectral intensities of the full wave-number range (PwT) is not more than 0.15. In such a film, the uniformity in thickness can remarkably improved, and snaking and wrinkles in post processing can be prevented.

    摘要翻译: 一种热塑性树脂薄膜,其中薄膜在纵向方向上的厚度变化不大于5%,波数分量的光谱强度之和的总和的比值“Pw1 / PwT”为0.15 到0.45(1 / m)(Pw1)时,当对厚度变化的波形进行傅立叶变换的分析时确定的全波数范围(PwT)的光谱强度之和不大于0.20, 其中膜的纵向变化量不大于5%,波数分量的光谱强度之和的总和的比值“Pw2 / PwT”在1.00-2.00(1 / m)(Pw2)与全波数范围(PwT)的光谱强度之和不大于0.15。 在这样的膜中,厚度的均匀性可以显着提高,并且可以防止后处理中的蛇纹和皱纹。