Title:
WATER-WASHABLE ANTIALLERGENIC FILTER MEDIUM
Document Type and Number:
Japanese Patent JP2015062451
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an antiallergenic filter medium which can be used for a long period, by water-washing a tannic acid-carrying filter for regeneration.SOLUTION: A water-washable antiallergenic filter medium includes a filter base material which contains tannic acid and zinc or a zinc compound. The content of tannic acid in the filter medium is preferably 0.5 g/mor more and 10 g/mor less.
Inventors:
YASUJIMA TAKEHIKO
Application Number:
JP2013196470A
Publication Date:
April 09, 2015
Filing Date:
September 24, 2013
Export Citation:
Assignee:
MITSUBISHI PAPER MILLS LTD
International Classes:
A61L9/01; A61L9/16; B01D39/14