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公开(公告)号：US4837067A
公开(公告)日：1989-06-06
申请号：US60041
申请日：1987-06-08
IPC分类号： D04H1/70
CPC分类号： D04H1/74 , D04H1/732 , Y10T428/24058 , Y10T428/24074 , Y10T428/24083 , Y10T428/24116 , Y10T428/24124 , Y10T428/24132 , Y10T428/24174 , Y10T428/249922
摘要： A nonwoven thermal insulating batt is provided. The batt comprises structural staple fibers and bonding staple fibers, the fibers being entangled and substantially parallel to the faces of the batt at the face portions and substantially perpendicular to the faces of the batt in the central portion of the batt. The bonding staple fibers are bonded to the structural staple fibers and other bonding staple fibers at points of contact. Also provided is a method of making the nonwoven thermal insulating batt which comprises air-laying a web of structural staple fibers and bonding staple fibers with the fibers being entangled and substantially parallel to the faces of the web at the face portions and in an angled, layered configuration in the central portions of the web. The air-laid web is reconfigured such that the fibers in the central portion of the web are substantially parallel and perpendicular to the faces of the web and the fibers are bonded to stabilize the reconfigured web to form the nonwoven thermal insulating batt.
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公开(公告)号：US07131442B1
公开(公告)日：2006-11-07
申请号：US08661834
申请日：1996-06-11
申请人： Joseph P. Kronzer , James F. Dyrud
发明人： Joseph P. Kronzer , James F. Dyrud
IPC分类号： A62B7/10
CPC分类号： B01D39/1623 , A41D13/1146 , A62B23/025 , B01D2239/0216 , B01D2239/065 , B01D2239/0681 , B01D2239/086 , B01D2239/10 , D04H1/54
摘要： A face mask for filtering contaminants from the air. The face mask includes a harness for securing the mask over the nose and mouth of the wearer and a nonwoven fibrous layer attached to the harness. The nonwoven fibrous layer contains at least 40 weight percent thermally bonding fibers, where at least 10 weight percent of the fibers in the nonwoven fibrous layer are bicomponent fibers. The nonwoven fibrous layer is molded in a cup-shaped configuration and has a surface fuzz value of not less than 7.5 after being subjected to a surface fuzz abrasion test.
摘要翻译： 用于过滤空气中的污染物的面罩。 面罩包括用于将面罩固定在穿戴者的鼻子和嘴部上的线束以及附接到线束的非织造纤维层。 非织造纤维层含有至少40重量％的热粘合纤维，其中非织造纤维层中至少10重量％的纤维是双组分纤维。 非织造纤维层被模制成杯状构造，并且在进行表面绒毛磨损试验之后具有不小于7.5的表面绒毛值。
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公开(公告)号：US5307796A
公开(公告)日：1994-05-03
申请号：US632964
申请日：1990-12-20
CPC分类号： B01D39/1623 , A41D13/1146 , D04H1/54 , A62B23/025 , B01D2239/0216 , B01D2239/065 , B01D2239/0681 , B01D2239/086 , B01D2239/10
摘要： A method of forming a cup-shaped, non-woven fibrous shaping layer for a filtering face mask. The method includes the steps: (a) heating a non-woven fibrous web that contains at least 40 weight percent thermally bonding fibers, where at least 10 weight percent of the fibrous material is bicomponent fibers, to a temperature at which the thermally bonding fibers, including at least one component of the bicomponent fibers, are softened; and then (b) molding the heated non-woven fibrous web, while the thermally bonding fibers and the at least cone component of the bicomponent fibers are still soft, in a mold having molding members that are at a temperature below the softening temperatures of the thermally bonding fibers, including all components of the bicomponent fibers.
摘要翻译： 一种形成用于过滤面罩的杯形非织造纤维成形层的方法。 该方法包括以下步骤：（a）加热含有至少40重量％热粘合纤维的非织造纤维网，其中至少10重量％的纤维材料是双组分纤维，其中热粘合纤维 包括双组分纤维的至少一种组分软化; 然后（b）在具有模制构件的模具中，在热粘合纤维和双组分纤维的至少锥形组分仍然柔软的同时，（b）模制加热的无纺纤维网，其温度低于 热粘合纤维，包括双组分纤维的所有组分。
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公开(公告)号：US4769022A
公开(公告)日：1988-09-06
申请号：US859041
申请日：1986-05-02
CPC分类号： A45D40/00 , A45D2200/1018
摘要： A nonwoven cleansing pad is provided. The pad comprises high-sorbency, liquid sorbent fibers capable of forming a hydrogelatinous outer surface by sorption of liquid and thermally bondable binder fibers. The cleansing pad is substantially free of supplemental lubricant and is integrally self-lubricating when wet with water.
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