公开(公告)号：US5306545A

公开(公告)日：1994-04-26

申请号：US987807

申请日：1992-12-09

申请人： Ryutaro Shirayanagi ,  Akimi Saeki ,  Kazuhiro Masumoto ,  Masaki Shimizu

发明人： Ryutaro Shirayanagi ,  Akimi Saeki ,  Kazuhiro Masumoto ,  Masaki Shimizu

IPC分类号： D04H1/56 ,  B32B27/14

CPC分类号： D04H1/4291 ,  D04H1/544 ,  D04H1/559 ,  D04H1/56 ,  D04H3/14 ,  D04H3/16 ,  Y10S428/903 ,  Y10T428/24603 ,  Y10T428/24612 ,  Y10T428/24826 ,  Y10T442/66 ,  Y10T442/68

摘要： The invention provides a melt-blown non-woven fabric obtained by melt-blowing an ethylene-.alpha.-olefin copolymer having a density of smaller than 0.900 g/cm.sup.3 and a crystallinity of from 5 to 40% or by melt-blowing a resin composition which chiefly comprises said copolymer, a laminated non-woven fabric obtained by laminating as a unitary structure a dry-type non-woven fabric on the melt-blown fabric that is obtained by melt-blowing said copolymer or the resin composition which chiefly comprises said copolymer, and a cataplasm which comprises the non-woven fabric obtained by melt-blowing said copolymer or said resin composition which chiefly comprises said copolymer, a dry-type non-woven fabric laminated on said melt-blown non-woven fabric, and a medicine layer applied onto said dry-type non-woven fabric. The non-woven fabric or the laminated non-woven fabric has excellent elastic property, i.e., excellent elasticity under the two-dimensional condition, and exhibit excellent fitness to the curved portions and to the stretched or contracted portions. The invention further provides a non-woven fabric obtained by melt-blowing a resin composition which contains 98 to 40% by weight of a polypropylene and 2 to 60% by weight of an ethylene-.alpha.-olefin copolymer having a density of smaller than 0.900 g/cm.sup.3 and a crystallinity of from 5 to 40%, and a laminated non-woven fabric material using the above non-woven fabric, featuring excellent softness and heat-adhesiveness at low temperatures as well as easy heat-working such as heat-embossing.

摘要翻译： 本发明提供一种通过熔融吹制密度小于0.900g / cm 3，结晶度为5〜40％的乙烯 - （α） - 烯烃共聚物而得到的熔喷无纺布， 主要包括所述共聚物的树脂组合物，通过将熔融吹塑所得共聚物或树脂组合物获得的在熔喷织物上的干式无纺布作为整体结构层压而获得的层压无纺织物 包括所述共聚物和包含通过熔融吹制所述共聚物或所述主要包含所述共聚物的所述树脂组合物获得的无纺布的粘土，层压在所述熔喷无纺织物上的干式无纺织物， 以及施加到所述干式无纺布上的药物层。 无纺布或层叠无纺布具有优异的弹性，即在二维条件下的优异的弹性，并且对弯曲部分和拉伸或收缩部分表现出优异的适应性。 本发明还提供一种通过熔融吹塑树脂组合物而获得的无纺织物，该树脂组合物含有98-40重量％的聚丙烯和2-60重量％的密度较小的乙烯 - （α-） - 烯烃共聚物 比例为0.900g / cm 3，结晶度为5〜40％，使用上述无纺布的层叠无纺布材料，在低温下具有优异的柔软性和热粘合性，并且易于加热，例如 热压花。