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公开(公告)号：EP1517736A1
公开(公告)日：2005-03-30
申请号：EP03761512.7
申请日：2003-06-26
发明人： AMTMANN, Till , BRANDT, Sigrid , GEIGER, Günther
CPC分类号： B01D39/1615 , B01D39/163
摘要： The invention relates to a filter material, especially in the form of a deep-bed filter layer, consisting of a supporting layer forming passages, a first type of plastic fibres and a pre-determinable amount of natural fibres. The first type of fibres are embodied as bicomponent fibres comprising a core which has a high melting point and is surrounded by an envelope having a lower melting point. An essentially non-shrinkable, stable filter matrix with reliable connection points can be formed without additional wetting agents or binding agents, due to the fact that the filter material contains a wet-strength agent selected from the group consisting of epichlorohydrine resins and/or melamine formaldehyde resins. Fine deposition processes can thus be carried out with said filter material for fluids, in order to separate tiny particles such as micro-organisms or proteins of liquid solutions.
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公开(公告)号：EP1517736B1
公开(公告)日：2006-09-27
申请号：EP03761512.7
申请日：2003-06-26
发明人： AMTMANN, Till , BRANDT, Sigrid , GEIGER, Günther
CPC分类号： B01D39/1615 , B01D39/163
摘要： The invention relates to a filter material, especially in the form of a deep-bed filter layer, consisting of a supporting layer forming passages, a first type of plastic fibres and a pre-determinable amount of natural fibres. The first type of fibres are embodied as bicomponent fibres comprising a core which has a high melting point and is surrounded by an envelope having a lower melting point. An essentially non-shrinkable, stable filter matrix with reliable connection points can be formed without additional wetting agents or binding agents, due to the fact that the filter material contains a wet-strength agent selected from the group consisting of epichlorohydrine resins and/or melamine formaldehyde resins. Fine deposition processes can thus be carried out with said filter material for fluids, in order to separate tiny particles such as micro-organisms or proteins of liquid solutions.
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