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    • 5. 发明申请
    • HEAT TREATED PROFILE EXTRUDED HOOK
    • 热处理型材挤压钩
    • WO2004093591A1
    • 2004-11-04
    • PCT/US2004/006298
    • 2004-03-02
    • 3M INNOVATIVE PROPERTIES COMPANY
    • AUSEN, Ronald W.,UNRUH, William C.,MILLER, PhilipSETH, Jayshree
    • A44B18/00
    • B29C47/003A44B18/0049A44B18/0065A61F13/625B29C47/00B29C47/0021Y10T24/27Y10T24/2783Y10T24/2792
    • A method for forming a unitary polymeric projection or fastener comprising a thin, strong flexible backing, and a multiplicity of thin spaced hook members projecting from the upper surface of the unitary backing the method generally including extruding a thermoplastic resin through a die plate which die plate is shaped to form a base layer and spaced ridges, ribs or hook elements projecting above a surface of the base layer. When the die forms the spaced ridges or ribs the cross sectional shape of the hook members are formed by the die plate while the initial hook member thickness is formed by transversely cutting the ridges at spaced locations along their lengths to form discrete cut portions of the ridges. Subsequently longitudinal stretching of the backing layer (in the direction of the ridges on the machine direction) separates these cut portions of the ridges, which cut portion then form spaced apart hook members. The extruded hook members or cut rib hook members are then heat treated resulting in shrinkage of at least a portion of at least the hook head portion thickness by from 5 to 90 percent, preferably 30 to 90 percent.
    • 一种用于形成整体式聚合物突出物或紧固件的方法,所述单元式聚合物突出物或紧固件包括薄而强韧的柔性背衬以及从整体背衬的上表面突出的多个细间隔的钩构件,所述方法通常包括挤出热塑性塑料 树脂通过模板形成,所述模板成形为形成基层以及突出在基层的表面上方的间隔的脊,肋或钩元件。 当模具形成间隔的脊部或肋部时,钩构件的横截面形状由模板形成,而初始钩构件厚度通过沿着它们的长度在间隔开的位置横向切割脊部形成,以形成脊部的离散切割部分 。 随后,背衬层(沿机器方向上的脊的方向)的纵向拉伸将这些脊的切割部分分开,该切割部分然后形成间隔开的钩构件。 然后对挤出的钩形件或切断的肋形钩件进行热处理,使至少钩头部分厚度的至少一部分收缩5-90%,优选30-90%。
    • 8. 发明申请
    • HOOK FASTENER
    • 挂钩紧固件
    • WO2005000064A1
    • 2005-01-06
    • PCT/US2004/013873
    • 2004-05-05
    • 3M INNOVATIVE PROPERTIES COMPANY
    • AUSEN, Ronald W.,SETH, Jayshree
    • A44B18/00
    • A44B18/0092A44B18/0049A44B18/0061Y10T24/2792Y10T428/24017
    • A unitary fastener of a thermoplastic resin comprising a base film layer having generally parallel upper and lower major surfaces, arranged in a first direction the base film layer being oriented at least in the first direction. The backing layer having on at least one surface separated surface elements extending at an angle to said first direction. The invention is also related to a method of forming a unitary fastener. The method includes the steps of extruding a thermoplastic resin in a machine direction through a die plate having a continuous base portion cavity and one or more rib cavities extending from the base portion cavity, forming a strip having a base layer and continuous rib. This scoring or cutting the ribs and at least a surface layer of the film structure forms predetermined separable elements. This inelastically stretching the strip to separated projections and the separated separable surface elements across the strip. The spacings between adjacent separated separable surface elements comprises an oriented film.
    • 一种热塑性树脂的单一紧固件,包括具有大体上平行的上下主表面的基膜层,沿第一方向布置至少在第一方向上取向基膜层。 背衬层具有至少一个表面分离的表面元件,该表面元件以与所述第一方向成一定角度延伸。 本发明还涉及一种形成单一紧固件的方法。 该方法包括以下步骤:通过具有连续基部空腔和从基部空腔延伸的一个或多个肋腔的模板,沿机器方向挤出热塑性树脂,形成具有基底层和连续肋的条带。 这种刻痕或切割肋和至少薄膜结构的表面层形成预定的可分离元件。 这将钢带非常伸展,以分离出突出部分和分离的可分离的表面元件。 相邻的可分离表面元件之间的间隔包括取向膜。
    • 9. 发明申请
    • NET STRUCTURE AND METHOD OF MAKING
    • 网络结构和制作方法
    • WO2004077980A1
    • 2004-09-16
    • PCT/US2004/000041
    • 2004-01-05
    • 3M INNOVATIVE PROPERTIES COMPANY
    • SETH, JayshreeAUSEN, Ronald W.,
    • A44B18/00
    • B29D28/00A44B18/0049A44B18/0053A44B18/0061A44B18/0084B29L2031/729
    • The present invention concerns an extrusion formed reticulated web, mesh or netting including reticulated hook fasteners for use with hook and loop fasteners the polymer netting comprising two sets of strands at angles to each other. The first set of strands are a plurality of oriented (molecular orientation created by stretching) strands extending in a first direction and are generally mutually parallel and linear. The second set of strands are a plurality of substantially parallel strands attached only to a first face of the first set of oriented strands. The first set of oriented strands occupy a first planar cross-sectional area in the thickness direction of the formed netting. Said second set of oriented strands occupy a second planar cross-sectional area in the thickness direction of the formed netting. Preferably, these first and second planar cross-sectional areas are substantially mutually exclusive and are abutting. The polymer netting is preferably made by extruding a thermoplastic resin through a die plate, which die plate is shaped to form a base film layer and spaced ridges or ribs projecting from a surface of the base layer. The spaced ridges or ribs formed by the die form the first set of strands forming the reticulated mesh or netting. The second set of transverse strands are formed by transversely cutting the base layer at spaced locations along a length, at a transverse angle to the ridges or ribs, to form discrete cut portions. Subsequently longitudinal stretching of the ridges (in the direction of the ridges or the machine direction) separates these cut portions of the backing, which cut portion then form the second set of spaced apart strands of the reticulated mesh or netting.
    • 本发明涉及一种挤出成型的网状网状物,网状物或网状物,包括用于钩环紧固件的网状钩紧固件,该聚合物网包括彼此成角度的两组线。 第一组股线是在第一方向上延伸的多个定向(通过拉伸产生的分子取向),并且通常相互平行和线性。 第二组股线是多个基本上平行的股线,其仅连接到第一组取向股线的第一面。 第一组取向的线束在形成的网的厚度方向上占据第一平面横截面积。 所述第二组取向的线在所形成的网的厚度方向上占据第二平面横截面积。 优选地,这些第一和第二平面横截面区域基本相互排斥并且邻接。 聚合物网优选通过将热塑性树脂挤出通过模板来制成,该模板被成形为形成基膜层,并且从基层的表面突出的间隔开的脊或肋。 由模具形成的间隔开的脊或肋形成形成网状网或网的第一组线。 第二组横向股线通过沿着与脊或肋以横向角度的长度在间隔开的位置横向切割基底层而形成,以形成离散的切割部分。 随后,脊的纵向拉伸(在脊或机器方向上)分离背衬的这些切割部分,该切割部分然后形成网状网或网的第二组间隔开的股线。