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2. 发明公开

EP2422866A1 LOW-BASIS-WEIGHT FILTER MEDIA FOR AIR FILTERS 有权转让
标题翻译：过滤麻醉剂GERINGER GRAMMATURFÜRLUFTFILTER
公开(公告)号：EP2422866A1
公开(公告)日：2012-02-29
申请号：EP10767056.4
申请日：2010-04-20
申请人： Hokuetsu Kishu Paper Co., Ltd.
发明人： SOYAMA Toshihiko , SATO Masashi
IPC分类号： B01D39/14 , D21H13/10 , D21H13/40 , D21H27/08
CPC分类号： B01D39/163 , B01D39/2024 , B01D2239/0457 , B01D2239/086 , B01D2239/1233 , D21H13/04 , D21H13/10 , D21H13/40 , D21H27/08
摘要： An object of the present invention is to improve a problem of the decrease in the internal tearing strength and water repellency in accordance with the decrease in the basis weight of a filter medium for air filters, and to provide a filter medium for air filters that can also address a demand for flame retardancy. The low-basis-weight filter medium for air filters according to the present invention is characterized by glass short fibers (A) and short fibers of hydrophobic chemical synthetic fibers each having a fiber diameter of 5 µm or less (B), as raw material fibers of the filter medium, by a mass ratio (A/B) in the range of from 70/30 to 95/5; a hydrophobic synthetic resin-based binder is added to the filter medium by 3 to 10 parts by mass of with respect to 100 parts by mass of the raw material fibers; and the filter medium has a basis weight of from 25 g/m 2 or more to 50 g/m 2 or less.
摘要翻译：本发明的目的在于，根据空气过滤器用过滤介质的单位面积重量的减少，改善内部撕裂强度和防水性降低的问题，并提供一种空气过滤器用过滤介质，也满足了阻燃需求。本发明的空气过滤器的低基重过滤介质的特征在于，玻璃短纤维（A）和纤维直径为5μm以下（B）的疏水化学合成纤维的短纤维为原料过滤介质的纤维，质量比（A / B）在70/30至95/5的范围内; 相对于原料纤维100质量份，向过滤介质中添加疏水性合成树脂系粘合剂3〜10质量份。过滤介质的单位面积重量为25g / m 2以上且50g / m 2以下。

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