Non woven fabric and method of making same
    2.
    发明公开
    Non woven fabric and method of making same 失效
    非织造材料和方法,用于其生产。

    公开(公告)号:EP0064853A1

    公开(公告)日:1982-11-17

    申请号:EP82302260.3

    申请日:1982-05-04

    Inventor: Plant, Derek

    Abstract: A nonwoven fabric is made by first forming a web (12) consisting predominantly of thermoplastic fibers, then pattern embossing the web at an elevated temperature to form autogenous thermal bonds extending through the web, then creping the bonded web by pressing the bonded web against a driven, grooved roll (30) which feeds the web against a retarding member (32). Removal of the web from the retarding member (32) is controlled so that the web is foreshortened in the driven direction and so that said grooves cause a noticeable ridge to be formed in the web. The temperature of the web during the creping step is controlled so that some of the thermoplastic fibers are softened which assists the formation and retention in the web of both the crepe and noticeable ridges 50, preferably of predominantly unbonded fibers. This heating of the web (12) also results in some bonding of fibers in the grooves (52) of the creped web (12) which gives the web (12) a striped appearance. In the creped web, when the autogenous bonds are lineal and generally extend in the cross direction of the web, the creped web can take on a seersucker or corduroy-like appearance depending upon the amount of compaction during the creping step.

Patent Agency Ranking