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公开(公告)号：US4135023A
公开(公告)日：1979-01-16
申请号：US780917
申请日：1977-03-24
CPC分类号： B29D28/00 , A61L15/24 , B29C47/0021 , B29C59/022 , B29C47/00 , B29C47/003 , B29C47/0033 , B29C59/04 , Y10S264/47 , Y10T428/24298 , Y10T428/2457 , Y10T428/28
摘要： A melt-embossed polymer film with primary parallel grooves on one surface and secondary parallel grooves on the other surface such that the combined tapes of the grooves is at least substantially equal to the film thickness, the two sets of grooves being located at an angle to each other of not less than 30.degree., is stretched at right angles to the direction of the primary grooves by a small amount to give a perforate product which can be formed into strips tearable longitudinally or transversely and thus useful as a vapor-permeable substrate for adhesive-coated tape.
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公开(公告)号：US4133310A
公开(公告)日：1979-01-09
申请号：US627347
申请日：1975-10-30
CPC分类号： D04H13/02 , C09J7/04 , D04H13/00 , C09J2400/263 , Y10S428/91 , Y10T428/24314 , Y10T428/24479 , Y10T428/24802 , Y10T428/249984 , Y10T428/28
摘要： A non-woven fabric is produced by stretching the film with on one surface a regular pattern of raised areas such as spaced hexagonal bosses and on the other surface a plurality of parallel grooves. Stretching is carried out in the groove direction. Preferably the polymer is a mixture of incompatible polymers so that on stretching a fibrous structure is formed. The film can be produced by melt-embossing. The stretched non-woven fabric may be coated with various adhesives to provide a tape useful in a medical context.
摘要翻译： 通过在一个表面上拉伸具有规则图案的凸起区域（例如间隔开的六角形凸起）并且在另一个表面上具有多个平行凹槽来生产无纺织物。 在槽方向进行拉伸。 优选地，聚合物是不相容的聚合物的混合物，使得在拉伸纤维结构时形成。 该膜可以通过熔体压花制造。 拉伸的无纺织物可以涂覆有各种粘合剂以提供在医学语境中有用的带。
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