专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP3395426A1 SPUNBOND NONWOVEN FABRIC FOR FILTER AND METHOD FOR MANUFACTURING SAID FABRIC 审中-公开
公开(公告)号：EP3395426A1
公开(公告)日：2018-10-31
申请号：EP16878259.7
申请日：2016-11-25
申请人： Toray Industries, Inc.
发明人： SHIMADA, Daiki , NAKANO, Yohei , MIZOGAMI, Hitoshi , KOBAYASHI, Takuji
IPC分类号： B01D39/16 , D01F8/14 , D04H3/011 , D04H3/147
CPC分类号： B01D39/16 , D01F8/14 , D04H3/011 , D04H3/147
摘要： The present invention provides a spunbond non-woven fabric for a filter having high rigidity and air permeability as well as excellent dust brush-off performance. The spunbond non-woven fabric for a filter of the present invention is a spunbond non-woven fabric for a filter including a composite polyester fiber containing a low melting point polyester arranged in the vicinity of a high melting point polyester, the low melting point polyester having a melting point which is 10 to 140°C lower than the melting point of the high melting point polyester, the composite polyester fiber having a single fiber fineness of not less than 1.5 dtex and less than 5.0 dtex, the spunbond non-woven fabric having a basis weight of 150 to 300 g/m 2 , an apparent density of 0.25 to 0.40 g/cm 3 , an air permeability per basis weight of 0.05 to 0.45 (cm 3 /cm 2 ·sec)/(g/m 2 ), and a bending resistance per basis weight, in at least one of the machine direction (MD) and the transverse direction (TD), of 0.09 to 0.32 (mN)/(g/m 2 ).

2. 发明公开

EP3632524A1 SPUNBONDED NONWOVEN FABRIC FOR FILTER AND METHOD FOR PRODUCING SAME 审中-公开
公开(公告)号：EP3632524A1
公开(公告)日：2020-04-08
申请号：EP18809935.2
申请日：2018-05-07
申请人： Toray Industries, Inc.
发明人： MIZOGAMI, Shinobu , NAKANO, Yohei , SHIMADA, Daiki
IPC分类号： B01D39/16 , D04H3/011 , D04H3/147
摘要： The spunbond non-woven fabric for a filter of the present invention comprises a composite polyester fiber containing a low melting point polyester arranged in the vicinity of a high melting point polyester, the low melting point polyester having a melting point which is 10 to 140°C lower than the melting point of the high melting point polyester, the spunbond non-woven fabric having a surface layer and a back layer, the composite polyester fiber having a single fiber fineness of not less than 1 dtex and less than 3 dtex at the surface layer and said composite polyester fiber having a single fiber fineness of not less than 3 dtex and not more than 5 dtex at the back layer, and the spunbond non-woven fabric having a basis weight of 130 to 300 g/m 2 .
A spunbond non-woven fabric for a filter having high rigidity and air permeability as well as excellent dust brush-off performance is provided.

3. 发明公开

EP3508639A1 SPUNBONDED NONWOVEN FABRIC AND PRODUCTION METHOD THEREFOR 有权
公开(公告)号：EP3508639A1
公开(公告)日：2019-07-10
申请号：EP17846327.9
申请日：2017-08-25
申请人： Toray Industries, Inc.
发明人： SHIMADA, Daiki , IKEJIRI, Yuki , NAKANO, Yohei
IPC分类号： D04H3/147 , B01D63/00 , D04H3/011
摘要： The present invention provides a spunbonded nonwoven fabric which has a smooth surface, is highly unlikely to cause a widthwise curl due to a difference between the states of front and back surfaces, has a superior membrane formability of not allowing, at the time of casting of a resin solution, a bleed-through of the resin solution due to excessive permeation, a peel-off of a membrane substance, or any other defect such as nonuniform membrane or pin hole due to fluffing of the support, and further exhibits membrane bondability that is strong enough to prevent the membrane substance from peeling off after membrane formation.
The spunbonded nonwoven fabric of the present invention is a spunbonded nonwoven fabric composed of thermoplastic fibers. In this spunbonded nonwoven fabric, the thermoplastic fiber is a conjugate fiber in which a low-melting polymer having a melting point lower by 10 to 140°C than that of a high-melting polymer is provided around the high-melting polymer, an apparent single fiber fineness of the conjugate fiber as viewed from the surface of the spunbonded nonwoven fabric is 0.5 dtex or more and 10 dtex or less. When the apparent single fiber fineness of the conjugate fiber is 0.5 dtex or more and less than 2 dtex, an apparent density is 0.50 to 0.70 g/cm 3 , and air permeability satisfies the following [formula 1]. When the apparent single fiber fineness of the conjugate fiber is 2 dtex or more and 10 dtex or less, the apparent density is 0.50 to 0.80 g/cm 3 , and the air permeability satisfies the following [formula 2].
. 3.8 × 10 4 × basis weight g / m 2 − 2 ≤ air permeability cc / cm 2 ⋅ sec ≤ 6.0 × 10 4 × basis weight g / m 2 − 2
. 2.2 × 10 4 × basis weight g / m 2 − 2 ≤ air permeability cc / cm 2 ⋅ sec ≤ 4.6 × 10 4 × basis weight g / m 2 − 2

4. 发明公开

EP4435165A1 SPUN-BONDED NON-WOVEN FABRIC 审中-实审
公开(公告)号：EP4435165A1
公开(公告)日：2024-09-25
申请号：EP22895481.4
申请日：2022-11-08
申请人： Toray Industries, Inc.
发明人： SHIMADA, Daiki , NAKAJIMA, Itaru , KOIDE, Gen
IPC分类号： D04H3/16 , D04H3/007 , D04H3/147
CPC分类号： D04H3/147 , D04H3/007 , D04H3/16
摘要： To provide a spun-bonded nonwoven fabric having excellent strength even at a low basis weight and excellent flexibility and touch feeling, the spun-bonded nonwoven fabric of the present invention is a spun-bonded nonwoven fabric made of a core-sheath composite fiber containing polypropylene-based resin as a main component, in which the spun-bonded nonwoven fabric has a bonding area and a non-bonding area, and a ratio (Os/Oc) of an orientation parameter Os of a sheath component of the core-sheath composite fiber in the non-bonding area to an orientation parameter Oc of a core component of the core-sheath composite fiber in the non-bonding area is 0.10 to 0.90.

5. 发明公开

EP3508640A1 SPUNBONDED NONWOVEN FABRIC AND PRODUCTION METHOD THEREFOR 有权
公开(公告)号：EP3508640A1
公开(公告)日：2019-07-10
申请号：EP17846329.5
申请日：2017-08-25
申请人： Toray Industries, Inc.
发明人： SHIMADA, Daiki , IKEJIRI, Yuki , NAKANO, Yohei
IPC分类号： D04H3/147 , B01D69/10 , D04H3/011
摘要： The present invention provides a spunbonded nonwoven fabric, which has a superior membrane formability of not allowing, at the time of casting of a resin solution, a bleed-through of the resin solution due to excessive permeation, a peel-off of a membrane substance, or any other defect such as nonuniform membrane or pin hole due to fluffing of the support, and further exhibits membrane bondability that is strong enough to prevent the membrane substance from peeling off after membrane formation, and a production method for the spunbonded nonwoven fabric. The spunbonded nonwoven fabric of the present invention is a spunbonded nonwoven fabric composed of thermoplastic fibers. In this spunbonded nonwoven fabric, the thermoplastic fiber is a conjugate fiber in which a low-melting polymer having a melting point lower by 10 to 140°C than that of a high-melting polymer is provided around the high-melting polymer, the spunbonded nonwoven fabric has a non-pressure bonding portion having an apparent density of 0.20 to 0.60 g/cm 3 , when a length of a long axis of a fiber cross section of the non-pressure bonding portion is a and a length of a short axis thereof is b, a fiber flatness a/b is 1.5 to 5, and an air permeability satisfies the following [formula 1]. air permeability cc / cm 2 • sec ≤ 520 × exp − 0.0236 × basis weight g / m 2 − 2.85 × apparent density g / cm 3

6. 发明公开

EP3187637A1 MELT-BLOWN NONWOVEN FABRIC AND METHOD FOR MANUFACTURING SAME 有权
标题翻译：熔喷非织造织物及其制造方法
公开(公告)号：EP3187637A1
公开(公告)日：2017-07-05
申请号：EP15836602.1
申请日：2015-08-21
申请人： Toray Industries, Inc.
发明人： SHIMADA, Daiki , NAKANO, Youhei , YAKAKE, Yoshikazu , KOBAYASHI, Takuji
IPC分类号： D04H3/14 , H01M2/16
CPC分类号： D04H3/14 , H01M2/145 , H01M2/16 , H01M2/162
摘要： The present invention provides a melt-blown nonwoven fabric which exhibits good texture with no waviness or surface unevenness as well as high thermal size stability without undergoing drastic decrease in the gas flow rate in heat treatment.
The melt-blown nonwoven fabric of the present invention comprises a fiber containing a thermoplastic resin as its main component, wherein apparent density is 0.1 to 0.4 g/cm 3 , KES surface roughness of at least one surface of the fabric sheet is up to 1.2 µm, and dry heat shrinkage at a temperature of 200°C is up to 2%.
The method for producing a melt-blown nonwoven fabric of the present invention comprises the step of conveying a web of nonwoven fabric comprising a fiber containing a thermoplastic resin as its main component by sandwiching the web between 2 sets of belt conveyers each comprising a belt of flexible material having a smooth surface; wherein a heat treatment zone where surface of one or both of the two sets of the belt conveyers has been heated to a temperature not lower than cold crystallization temperature of the thermoplastic resin and not higher than the temperature -3°C lower than melting temperature of the thermoplastic resin is provided in at least a part of the course where the nonwoven fabric is conveyed between the belts; and wherein the nonwoven fabric web is heated in the heat treatment zone by bringing both surfaces of the nonwoven fabric web in contact with the belt conveyers.
摘要翻译：本发明提供了一种熔喷非织造织物，其具有良好的织构，没有波纹或表面不平坦，并且热尺寸稳定性高，而热处理中的气体流速没有急剧下降。本发明的熔喷非织造织物包含含有热塑性树脂作为其主要组分的纤维，其中表观密度为0.1-0.4g / cm 3，织物片至少一个表面的KES表面粗糙度为1.2μm ，在200℃的温度下的干热收缩率高达2％。本发明的熔喷非织造布的制造方法包括以下步骤：通过将纤维网夹在两组皮带输送机之间来输送由包含热塑性树脂作为其主要成分的纤维构成的非织造纤维网，每组皮带输送机包括具有光滑表面的柔性材料; 其中，所述两组带式输送机中的一组或两组的表面已经被加热到不低于所述热塑性树脂的冷结晶温度并且不高于比所述热塑性树脂的熔融温度低-3℃的温度在传送带之间传送无纺布的过程的至少一部分中设置热塑性树脂; 并且其中通过使所述非织造织物网的两个表面与所述带式输送器接触而在所述热处理区中加热所述非织造织物网。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式