发明名称 |
Nonwovens produced from multicomponent fibers |
摘要 |
A water non-dispersible polymer microfiber is provided comprising at least one water non-dispersible polymer wherein the water non-dispersible polymer microfiber has an equivalent diameter of less than 5 microns and length of less than 25 millimeters. A process for producing water non-dispersible polymer microfibers is also provided, the process comprising: a) cutting a multicomponent fiber into cut multicomponent fibers; b) contacting a fiber-containing feedstock with water to produce a fiber mix slurry; wherein the fiber-containing feedstock comprises cut multicomponent fibers; c) heating the fiber mix slurry to produce a heated fiber mix slurry; d) optionally, mixing the fiber mix slurry in a shearing zone; e) removing at least a portion of the sulfopolyester from the multicomponent fiber to produce a slurry mixture comprising a sulfopolyester dispersion and water non-dispersible polymer microfibers; and f) separating the water non-dispersible polymer microfibers from the slurry mixture. A process for producing a nonwoven article is also provided.
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申请公布号 |
US8178199(B2) |
申请公布日期 |
2012.05.15 |
申请号 |
US201113053615 |
申请日期 |
2011.03.22 |
申请人 |
GUPTA RAKESH KUMAR;MITCHELL MELVIN GLENN;KLOSIEWICZ DANIEL WILLIAM;EASTMAN CHEMICAL COMPANY |
发明人 |
GUPTA RAKESH KUMAR;MITCHELL MELVIN GLENN;KLOSIEWICZ DANIEL WILLIAM |
分类号 |
D02G3/00;D04H1/00;D04H13/00 |
主分类号 |
D02G3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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