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    • 8. 发明授权
    • Elastic tab laminate
    • 弹性片层压板
    • US06531207B1
    • 2003-03-11
    • US09704854
    • 2000-11-02
    • Bradley W. EatonNedlin B. JohnsonMichael R. GormanShou-Lu G. Wang
    • Bradley W. EatonNedlin B. JohnsonMichael R. GormanShou-Lu G. Wang
    • B32B2712
    • A61F13/58A61F13/5622Y10T428/24826Y10T442/601Y10T442/678Y10T442/679
    • There is provided an extensible elastic tab designed to be adhered to the edge of an article, formed using a coextruded elastic film comprising at least one elastic layer and at least one second layer on at least a first face of the elastic layer with at least one face of the coextruded elastic film attached to at least a partially extensible nonwoven layer. The partially expandable, or extensible nonwoven layer has at least one first portion with limited extensibility in a first direction and at least one second inextensible portion in the first direction. The extensible elastic tab when stretched to the extension limit of the first portion or portions in the first direction will elastically recover at least 1.0 cm, preferably at least 2 cm providing an elastic tab having a Useful Stretch Ratio (as defined in the Examples) of at least 30 percent. The Useful Stretch Ratio includes the portion of the elastic recovery length having an elastic recovery force of greater than 20 grams/cm force, but below a given extension which generally is 90 percent of the extension limit. Further the elastic tab in the region of the Useful Stretch Ratio preferably has an incremental extension force of less than about 300 grams/cm. The invention tab provides definable predictable elastic performance and is useful as a fastening tab used to join to surfaces requiring elastic engagement, particularly a person or animal. The tab is particularly useful as a diaper fastening tab.
    • 提供了一种设计成粘附到制品边缘的可伸展的弹性片,其使用共挤出的弹性膜形成,所述共挤出的弹性膜包括至少一个弹性层和在弹性层的至少第一面上的至少一个第二层, 附着在至少部分可伸长的非织造层上的共挤出的弹性膜的表面。 部分可扩张的或可延伸的非织造层具有至少一个在第一方向上具有有限延伸性的第一部分和在第一方向上的至少一个第二不可伸展部分。 当伸展到第一部分或第一方向的部分的延伸极限时的可伸展弹性片将弹性恢复至少1.0cm,优选至少2cm,提供具有有用的拉伸比(如实施例中所定义)的弹性片 至少30%。 有用的拉伸比包括具有大于20克/厘米力的弹性回复力的弹性恢复长度的一部分,但低于通常为延伸极限的90%的给定延伸部。 此外,有用拉伸比区域中的弹性片优选地具有小于约300克/厘米3的增量延伸力。 本发明标签提供可定义的可预测的弹性性能,并且可用作用于连接到需要弹性接合的表面,特别是人或动物的紧固片。 该贴片特别适用于尿布紧固片。
    • 10. 发明授权
    • Elastic sheet-like composite
    • 弹性片状复合材料
    • US5681302A
    • 1997-10-28
    • US259485
    • 1994-06-14
    • William L. MelbyeDennis L. BeckerMichael R. Gorman
    • William L. MelbyeDennis L. BeckerMichael R. Gorman
    • A61F13/494A61F5/44A61F13/15A61F13/49B29C47/02B32B3/28A61F13/20
    • A61F13/15593
    • An elastic sheet-like composite comprising a multiplicity of elongate strands of resiliently elastic material, and one or more sheets of material bonded along its length or at sheet bonding locations to the elastic strands, some of which sheets have arcuate portions projecting from the elastic strands between those sheet bonding locations. The elastic sheet-like composite may be incorporated in disposable garments such as diapers or training pants. Also disclosed is a novel method and novel equipment for making the elastic sheet-like composite including in different combinations, sheet corrugating members, equipment for compacting the sheet along its length and an extruder that extrudes the strands onto the sheets and affords versatility in selecting characteristics of the elastic sheet-like composite to be produced without major modifications of the equipment.
    • 一种弹性片状复合材料,包括多个弹性弹性材料的细长股线,以及一个或多个材料片沿其长度或在片材接合位置处接合到弹性股线上,其中一些片材具有从弹性股线突出的弓形部分 在这些片材粘合位置之间。 弹性片状复合材料可以并入一次性衣物如尿布或训练裤中。 还公开了一种用于制造弹性片状复合材料的新颖方法和新颖的设备,其包括不同的组合,片材波纹构件,沿其长度压缩片材的设备和挤出机,其将线材挤出到片材上并提供选择特性的多功能性 的弹性片状复合材料,而不需要对设备进行大的修改。