发明名称 Method and apparatus for pin-hole prevention in zone laminates
摘要 The method and apparatus of the present invention prevents the formation of pin-holes during stretching of strip laminates in the cross-machine direction (CD). Pin-holes are prevented by creating slack areas (10a) along the length of the laminate (10) where the edges of the non-woven strips (14) meet with the polymer film (12), pressing the slack areas (10a) into the interdigital stretching rollers (26) without stretching the slack areas (10a), and stretching the remainder of the laminate (10) in a typical manner. The slack areas (10a) are formed prior to interdigitation by, for example, formation of a furrow, a fold or a corrugation.
申请公布号 US6673297(B2) 申请公布日期 2004.01.06
申请号 US20010829366 申请日期 2001.04.09
申请人 CLOPAY PLASTIC PRODUCTS COMPANY, INC. 发明人 MUSHABEN THOMAS G.
分类号 C08J5/18;B29C55/02;B29C55/18;B29K23/00;B29K105/04;B29K105/16;B29L9/00;B32B3/02;B32B5/24;B32B27/12;B32B27/32;B32B37/00;B32B37/20;C08K3/22;C08K3/26;C08L23/04;C08L27/12;D04H13/00;(IPC1-7):B29C55/00 主分类号 C08J5/18
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