国家/地区 中国（2）
IPC部 B（2）
IPC大类 D01（2）
IPC小类 D01D（2）
IPC D01F001/10（2）
发明人
公开年 2023（2）
申请年 2022（2） 
专利权人

Preparing graphene cloud velvet comprises e.g. producing raw material for recycling, recycling the production raw material, crushing the production raw material, extruding and melting the raw material by screw, placing into three-layer oven for heat setting.

DAI Q, LI J, LI C, XIU Q, GAI X

Graphene filter film comprises first non-woven fabric layer, graphene layer and second non-woven fabric layer arranged in sequentially, where each layer is embedded with each other at connection position.

JU Y, YI J, WANG W, WANG D