Polyester film for recording medium and magnetic recording tape
    61.
    发明授权
    Polyester film for recording medium and magnetic recording tape 有权
    聚酯薄膜用于记录介质和磁记录胶带

    公开(公告)号:US07608349B2

    公开(公告)日:2009-10-27

    申请号:US10544446

    申请日:2004-02-04

    IPC分类号: G11B5/00 G11B3/00

    摘要: A polyester film for recording medium, having one major surface thereof provided with a coating layer containing fine particles of 5 to 60 nm diameter and an organic compound, wherein the number of fine surface projections existing on the surface of the coating layer is in the range of 3 million to 100 million/mm2, and the number of surface defects of 120 nm or greater height attributed to foreign matter contained in the film is 30/100 cm2 or less, and wherein the polyester contains a titanium compound substantially not having any particle diameter. Thus, there are provided a magnetic recording tape for digital data recording that can reduce dropouts and excels in durability, and further provided a polyester film that is suitable as a base film thereof.

    摘要翻译: 一种用于记录介质的聚酯膜,其一个主表面设置有包含5至60nm直径的细颗粒的涂层和有机化合物,其中存在于涂层表面上的细微表面突起的数量在该范围内 为300万至1亿/ mm 2,由于膜中含有的异物而导致120nm以上的表面缺陷的数量为30/100cm 2以下,其中,聚酯含有基本上不具有任何颗粒的钛化合物 直径。 因此,提供了一种用于数字数据记录的磁记录带,其可以减少落差并且耐久性优异,并且还提供了适合作为其基膜的聚酯膜。

    Polyester film for recording medium and magnetic recording tape
    63.
    发明申请
    Polyester film for recording medium and magnetic recording tape 有权
    聚酯薄膜用于记录介质和磁记录胶带

    公开(公告)号:US20060147762A1

    公开(公告)日:2006-07-06

    申请号:US10544446

    申请日:2004-02-04

    IPC分类号: G11B5/706

    摘要: A polyester film for recording medium, having one major surface thereof provided with a coating layer containing fine particles of 5 to 60 nm diameter and an organic compound, wherein the number of fine surface projections existing on the surface of the coating layer is in the range of 3 million to 100 million/mm2, and the number of surface defects of 120 nm or greater height attributed to foreign matter contained in the film is 30/100 cm2 or less, and wherein the polyester contains a titanium compound substantially not having any particle diameter. Thus, there are provided a magnetic recording tape for digital data recording that can reduce dropouts and excels in durability, and further provided a polyester film that is suitable as a base film thereof.

    摘要翻译: 一种用于记录介质的聚酯膜,其一个主表面设置有包含5至60nm直径的细颗粒的涂层和有机化合物,其中存在于涂层表面上的细微表面突起的数量在该范围内 300万至1亿/平方毫米,由于包含在膜中的异物所引起的高度为120纳米或更大的表面缺陷数为30/100厘米2 或更少,并且其中所述聚酯含有基本上不具有任何粒径的钛化合物。 因此,提供了一种用于数字数据记录的磁记录带,其可以减少落差并且耐久性优异,并且还提供了适合作为其基膜的聚酯膜。