Composite filtering structures with mat of packed melt blown micro- and nano-fibres having NANO-protrusions
    1.
    发明授权
    Composite filtering structures with mat of packed melt blown micro- and nano-fibres having NANO-protrusions 有权
    具有NANO突起的填充熔喷微型和纳米纤维垫的复合过滤结构

    公开(公告)号:US09216371B2

    公开(公告)日:2015-12-22

    申请号:US13980264

    申请日:2011-01-18

    Abstract: Composite filtering structures comprising nanofibers spatially distributed between microfibers, wherein on the nanofibers and on the microfibers a palisade of protrusions of nanometric sizes in the form of nano-protrusions is produced, which palisade comprises nano-protrusions oriented with respect to the fiber surface at an angle ranging from about 70° to about 120°. A method of obtaining such composite filtering structures by a method that includes feeding a thermoplastic material from an extruder to at least one fiber formation die, stretching formed fibers coming out from the die, which fibers being still in a molten phase, to smaller sizes by a stream of hot air flowing tangentially to the fibers, collecting the fibers after their solidification and thus forming a mat of packed fibers providing a filtering structure, and subjecting the filtering structure to chemical etching.

    Abstract translation: 包括在微纤维之间空间分布的纳米纤维的复合过滤结构,其中在纳米纤维和微纤维上产生呈纳米突起形式的纳米尺寸突起的栅栏,该栅栏包括相对于纤维表面定向的纳米突起 角度约为70°至120°。 一种通过一种方法获得这种复合过滤结构的方法,该方法包括将热塑性材料从挤出机进料到至少一个纤维成形模具,将从模具出来的成型纤维拉伸,该纤维仍处于熔融状态,通过 与纤维相切流动的热空气流,在固化后收集纤维,从而形成提供过滤结构的填充纤维垫,并对过滤结构进行化学蚀刻。

    PLEATED FILTER AND A METHOD FOR MANUFACTURING OF PLEATED FILTERS
    2.
    发明申请
    PLEATED FILTER AND A METHOD FOR MANUFACTURING OF PLEATED FILTERS 审中-公开
    PLETED过滤器和制造过滤器的方法

    公开(公告)号:US20130284666A1

    公开(公告)日:2013-10-31

    申请号:US13979136

    申请日:2011-01-11

    Abstract: The present invention relates to a method for manufacturing a pleated filter (1) obtained by pleating a filtering material and folding the pleated filtering material to form a cylindrical configuration, which method further comprises applying at least one layer of fibrous covering on the outer surface of ridges of the pleats, which fibrous covering comprising melt-blown fibres (3) of thermoplastic polymer, wherein the pleated filter (1) is arranged in parallel to the blowing head which blows the molten polymer forming fibres, whereas at the same time the filter (1) performs rotational movements and/or reciprocating motions, while the distance of the blowing head from the said outer surface of the filter (1) is selected so that the fibres blown from the head from the said outer surface of the filter (1) is selected so that the fibres blown from the blowing head at the time of contacting the pleat ridges are still in a plastic state.The application provides further a pleated filter containing a pleated filtering material folded to form preferably a cylindrical configuration, on the outer surface of which filter the covering layer manufactured according to die method of the invention is arranged.

    Abstract translation: 本发明涉及一种通过打褶过滤材料并折叠褶皱过滤材料以形成圆柱形构造而获得的褶皱过滤器(1)的方法,该方法还包括在至少一层纤维覆盖物的外表面上 褶皱的脊部,其中包括热塑性聚合物的熔喷纤维(3)的纤维覆盖物,其中打褶过滤器(1)平行于吹塑熔融聚合物形成纤维的吹塑头设置,而同时过滤器 (1)执行旋转运动和/或往复运动,同时选择吹风头与过滤器(1)的所述外表面的距离,使得从过滤器(1)的所述外表面从头部吹出的纤维 ),使得在接触褶皱脊时从吹头吹出的纤维仍处于塑性状态。 本申请进一步提供了一种折叠过滤器,其包含褶皱过滤材料,折叠形成优选圆柱形构造,其外表面上布置了根据本发明的模具方法制造的覆盖层。

    COMPOSITE FILTERING STRUCTURES AND A METHOD FOR OBTAINING COMPOSITE FILTERING STRUCTURES
    3.
    发明申请
    COMPOSITE FILTERING STRUCTURES AND A METHOD FOR OBTAINING COMPOSITE FILTERING STRUCTURES 有权
    复合过滤结构和一种获得复合过滤结构的方法

    公开(公告)号:US20130298513A1

    公开(公告)日:2013-11-14

    申请号:US13980264

    申请日:2011-01-18

    Abstract: Composite filtering structures comprising nanofibres spatially distributed between microfibers, wherein on the nanofibers and on the microfibers a palisade of protrusions of nanometric sizes in the form of nano-protrusions is produced, which palisade comprises nano-protrusions oriented with respect to the fibre surface at an angle ranging from about 70° to about 120°. A method of obtaining such composite filtering structures by a method that includes feeding a thermoplastic material from an extruder to at least one fibre formation die, stretching formed fibres coming out from the die, which fibres being still in a molten phase, to smaller sizes by a stream of hot air flowing tangentially to the fibres, collecting the fibres after their solidification and thus forming a mat of packed fibres providing a filtering structure , and subjecting the filtering structure to chemical etching.

    Abstract translation: 包括在微纤维之间空间分布的纳米纤维的复合过滤结构,其中在纳米纤维和微纤维上产生呈纳米突起形式的纳米尺寸突起的栅栏,该栅栏包括相对于纤维表面定向的纳米突起 角度约为70°至120°。 一种通过一种方法获得这种复合过滤结构的方法,该方法包括将热塑性材料从挤出机进料到至少一个纤维成形模具,将从模具出来的成型纤维拉伸,该纤维仍处于熔融状态,通过 与纤维相切流动的热空气流,在固化后收集纤维,从而形成提供过滤结构的填充纤维垫,并对过滤结构进行化学蚀刻。

Patent Agency Ranking