申请人:Toray Industries, Inc.
公开号:US10688753B2
公开(公告)日:2020-06-23
A laminated polyarylene sulfide heat-resistant filter has a plurality of layers, at least including a first web layer that is a filtering surface, and a second web layer that is a non-filtering surface, the laminated polyarylene sulfide heat-resistant filter being characterized in that the first web layer contains 30 to 70 wt % of polyarylene sulfide fibers having a fineness of 0.5 to 1.2 dtex, and 30 to 70 wt % of polyarylene sulfide fibers having a fineness of 1.3 to 3.0 dtex taking a total of a weight percentages of the first web layer as 100 wt %, wherein the second web layer contains polyarylene sulfide fibers having a fineness of 1.0 to 4.0 dtex.
一种层叠式聚芳基硫醚耐热过滤器具有多层,至少包括作为过滤面的第一纤网层和作为非过滤面的第二纤网层,该层叠式聚芳基硫醚耐热过滤器的特征在于,第一纤网层含有30至70重量%的聚芳基硫醚纤维,其细度为0.5至1.2dtex的聚芳硫醚纤维,以及30至70重量%的细度为1.3至3.0dtex的聚芳硫醚纤维,第一纤维层的总重量百分比为100重量%,其中第二纤维层含有细度为1.0至4.0dtex的聚芳硫醚纤维。