首页> 外国专利> TOUCH FASTENERS HAVING PORTIONS WITH DIFFERENT PROPERTIES AND METHODS OF MAKING SAME

TOUCH FASTENERS HAVING PORTIONS WITH DIFFERENT PROPERTIES AND METHODS OF MAKING SAME

机译:纽扣紧固件具有不同的特性和制造方法

摘要

Touch fasteners with different portions having different material properties,and methods and apparatus for making such a product. In one embodiment, thefastener includes a cross-linkable polymer, and a first portion of thefastener is cross-linked and a second portion of the fastener is not cross-linked or is cross-linked to a degree less than said first portion. In anotherembodiment, the fastener is made in a continuous process on a rotating moldroll (40) having a plurality of fastener element mold cavities (42) extendinginto the mold roll (40) from its outer circumferential surface. The methodincludes applying a first polymer to the mold roll (40) and forcing some ofthe first polymer into the mold cavities (42), with some of the first polymerremaining on the surface of the mold roll (40) in the form of a film havingthickness; with a doctoring blade (44), removing at least some of the firstpolymer remaining on the surface of the mold roll (40) to at least reduce thethickness of the film of the first polymer on the mold roll (40) surface (insome cases, substantially all of the polymer on the mold roll surface isremoved); and applying a second polymer to the mold roll (40), the secondpolymer being compatible with, and adhering to, the first polymer.
机译:接触紧固件的不同部分具有不同的材料特性,以及用于制造这种产品的方法和设备。在一实施例中,紧固件包括可交联的聚合物,以及第一部分紧固件是交联的,而紧固件的第二部分是不交叉的交联或交联的程度小于所述第一部分。在另一个实施例中,紧固件是在旋转模具上以连续过程制成的辊(40)具有多个延伸的紧固件元件模具腔(42)从其外圆周表面进入模具辊(40)。方法包括将第一聚合物施加到模制辊(40)上并迫使其中的一些将第一种聚合物与一些第一聚合物一起放入模腔(42)残留在模辊(40)表面上的薄膜形式厚度;用刮水刀片(44),将至少一部分残留在模具辊(40)表面上的聚合物至少可减少模具辊(40)表面上第一聚合物薄膜的厚度(in在某些情况下,模具辊表面上基本上所有的聚合物都是移除);然后将第二种聚合物施加到模具辊(40)与第一聚合物相容并粘附的聚合物。

著录项

  • 公开/公告号CA2366743A1

    专利类型

  • 公开/公告日2000-10-12

    原文格式PDF

  • 申请/专利权人 VELCRO INDUSTRIES B.V.;

    申请/专利号CA20002366743

  • 发明设计人 TACHAUER ERNESTO;VANBENSCHOTEN BRIAN J.;

    申请日2000-03-29

  • 分类号A44B18/00;

  • 国家 CA

  • 入库时间 2022-08-22 01:52:27

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