国家/地区 中国（2）
IPC部 B（3） D（3） A（2）
C（2）
IPC大类 B01（3）
IPC小类 B01D（3）
IPC B01D039/08（3）
发明人
公开年 2021（3）
申请年 2020（2） 
专利权人

Increasing an electrical and/or thermal conductivity, as well as filtering power and germ-blocking properties of textile article by preparing impregnation composition consisting of graphene, polymeric binder and wetting agent, and stirring.

CESAREO G G, RIZZI L G

Preparing environmentally friendly air filtering non-woven fabric comprises e.g. mixing polypropylene, electret masterbatch and polymer electret, and subjecting melt blown cloth to constant temperature infrared radiation heat treatment.

ZHANG C

Heat detection mask comprises mid-leaf filter cloth having four corners and four sides, upper leaf of middle leaf filter fabric and upper leaf bonded to have same edge on upper side of left and right sides and having arc-shaped sewing line.

SHIM B