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1. 发明授权

US07871946B2 Nonwoven fabric composed of ultra-fine continuous fibers, and production process and application thereof 有权
标题翻译：由超细连续纤维组成的无纺布及其生产工艺及其应用
公开(公告)号：US07871946B2
公开(公告)日：2011-01-18
申请号：US10949452
申请日：2004-09-27
申请人： Takuya Tsujimoto , Naoki Fujiwara , Midori Okazaki , Nozomu Sugo
发明人： Takuya Tsujimoto , Naoki Fujiwara , Midori Okazaki , Nozomu Sugo
IPC分类号： D04H1/00 , B29D28/00 , B32B1/00 , B32B15/04
CPC分类号： D04H3/12 , D04H3/016 , Y10T442/20 , Y10T442/2484 , Y10T442/637 , Y10T442/64
摘要： A nonwoven fabric composed of ultra-fine continuous fibers having a mean fineness of not more than 0.5 dtex is prepared. The nonwoven fabric comprises a water-soluble thermoplastic resin in a proportion of not more than 5% by weight relative to the nonwoven fabric, has an absorbing height of not less than 30 mm as determined at 20° C. after 10 minutes based on Byreck method when the nonwoven fabric immersion-treated for 60 minutes in a water of 80° C. is used, and satisfies the following formula: (B)/(A)≧0.25, wherein the symbol (B) represents a tensile strength [N/5 cm] in the longitudinal direction and the lateral direction of the nonwoven fabric and the symbol (A) represents a fabric weight [g/m] of the nonwoven fabric. In the nonwoven fabric, not less than 30% of the surface may be coated with the water-soluble thermoplastic resin. The water-soluble thermoplastic resin may be a water-soluble thermoplastic polyvinyl alcohol, e.g., a modified polyvinyl alcohol containing an ethylene unit in a proportion of 3 to 20 mol %.The present invention provides a nonwoven fabric composed of ultra-fine continuous fibers, having a high flexibility or softness, and having a high mechanical strength even when the fiber diameter is small, and having an excellent water absorbency, as well as a production process and an application thereof.
摘要翻译：制备由平均细度不超过0.5dtex的超细连续纤维构成的无纺布。无纺织物相对于无纺布的比例不超过5重量％的水溶性热塑性树脂，基于Byreck，在20℃下测定的吸收高度不小于30mm。使用在80℃的水中浸渍处理60分钟的无纺布的方法，满足下式（B）/（A）≥0.25，其中符号（B）表示拉伸强度[N / 5cm]的无纺布的长度方向和横向，符号（A）表示无纺布的织物重量[g / m]。在无纺布中，表面的不少于30％可以用水溶性热塑性树脂涂布。水溶性热塑性树脂可以是水溶性热塑性聚乙烯醇，例如含有3〜20摩尔％的乙烯单元的改性聚乙烯醇。本发明提供一种由超细连续纤维构成的无纺布，其具有高的柔软性或柔软性，并且即使纤维直径小，具有优异的吸水性也具有高的机械强度，以及制造方法和其应用。

2. 发明申请

US20050079781A1 Nonwoven fabric composed of ultra-fine continuous fibers, and production process and application thereof 有权
标题翻译：由超细连续纤维组成的无纺布及其生产工艺及其应用
公开(公告)号：US20050079781A1
公开(公告)日：2005-04-14
申请号：US10949452
申请日：2004-09-27
申请人： Takuya Tsujimoto , Naoki Fujiwara , Midori Okazaki , Nozomu Sugo
发明人： Takuya Tsujimoto , Naoki Fujiwara , Midori Okazaki , Nozomu Sugo
IPC分类号： D04H3/16 , D04H3/12 , D04H13/00 , B32B3/00 , B32B5/02 , B32B9/00 , B32B27/04 , D04H1/00 , D04H3/00
CPC分类号： D04H3/12 , D04H3/016 , Y10T442/20 , Y10T442/2484 , Y10T442/637 , Y10T442/64
摘要： A nonwoven fabric composed of ultra-fine continuous fibers having a mean fineness of not more than 0.5 dtex is prepared. The nonwoven fabric comprises a water-soluble thermoplastic resin in a proportion of not more than 5% by weight relative to the nonwoven fabric, has an absorbing height of not less than 30 mm as determined at 20° C. after 10 minutes based on Byreck method when the nonwoven fabric immersion-treated for 60 minutes in a water of 80° C. is used, and satisfies the following formula: (B)/(A)≧0.25, wherein the symbol (B) represents a tensile strength [N/5 cm] in the longitudinal direction and the lateral direction of the nonwoven fabric and the symbol (A) represents a fabric weight [g/m] of the nonwoven fabric. In the nonwoven fabric, not less than 30% of the surface may be coated with the water-soluble thermoplastic resin. The water-soluble thermoplastic resin may be a water-soluble thermoplastic polyvinyl alcohol, e.g., a modified polyvinyl alcohol containing an ethylene unit in a proportion of 3 to 20 mol %. The present invention provides a nonwoven fabric composed of ultra-fine continuous fibers, having a high flexibility or softness, and having a high mechanical strength even when the fiber diameter is small, and having an excellent water absorbency, as well as a production process and an application thereof.
摘要翻译：制备由平均细度不超过0.5dtex的超细连续纤维构成的无纺布。无纺织物相对于无纺布的比例不超过5重量％的水溶性热塑性树脂，基于Byreck，在20℃下测定的吸收高度不小于30mm。使用在80℃的水中浸渍处理60分钟的无纺布的方法，满足下式：（B）/（A）> = 0.25，其中符号（B）表示抗拉强度[ N / 5cm）的无纺布的长度方向和横向，符号（A）表示无纺织物的织物重量[g / m]。在无纺布中，表面的不少于30％可以用水溶性热塑性树脂涂布。水溶性热塑性树脂可以是水溶性热塑性聚乙烯醇，例如含有3〜20摩尔％的乙烯单元的改性聚乙烯醇。本发明提供一种由超细连续纤维构成的无纺布，其具有高的柔软性或柔软性，并且即使纤维直径小，具有优异的吸水性也具有高的机械强度，以及制造方法和其应用。

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