Technique for incorporating a liquid additive into a nonwoven web
    2.
    发明申请
    Technique for incorporating a liquid additive into a nonwoven web 有权
    将液体添加剂掺入非织造纤维网中的技术

    公开(公告)号:US20070141941A1

    公开(公告)日:2007-06-21

    申请号:US11304988

    申请日:2005-12-15

    IPC分类号: B32B5/26

    摘要: A technique for incorporating a liquid additive into a nonwoven web is disclosed. Specifically, the liquid additive is loaded into filler particles to form a “dry liquid concentrate”, i.e., pulverulent granular solid or powder loaded with the liquid additive. The incorporation of the liquid additive into dry liquid concentrates provides a variety of benefits. For example, prior to extrusion, the dry liquid concentrates generally retain the properties of filler particles from which they are formed as the liquid remains isolated. In this manner, a higher level of the liquid additive may be compounded with a melt-extrudable base composition without adversely affecting the extrusion process. Only upon extrusion of the composition will a significant portion of the liquid additive be released to provide the desired properties to the resulting nonwoven web.

    摘要翻译: 公开了一种将液体添加剂掺入非织造纤维网中的技术。 具体地说,将液体添加剂装载到填料颗粒中以形成“干液浓缩物”,即装载液体添加剂的粉状颗粒状固体或粉末。 将液体添加剂掺入干燥液体浓缩物中提供了各种益处。 例如,在挤出之前,干燥液体浓缩物通常保留当液体保持分离时从其形成的填料颗粒的性质。 以这种方式,可以将较高水平的液体添加剂与可熔融挤出的基础组合物混合而不会对挤出过程产生不利影响。 只有在挤出组合物时,大部分液体添加剂才能被释放,从而为所得非织造织物提供所需的性能。