国家/地区 中国（2）
IPC部 A（3）
IPC大类 A41（3） B32（3） D04（2）
IPC小类 A41D（3）
IPC B32B027/06（3）
发明人
公开年 2022（2）
申请年 2022（2） 
专利权人

Laminated structure hollow micro-nano fiber non-woven material useful in e.g. field of cold protection and heat preservation, comprises upper surface layer, lower surface layer, and middle layer arranged between upper and lower layers, which are hollow nano-fiber layer with dense fibers stacked.

ZHANG W, GE J, XIE D, SHAN H, FU Q

Waterproof fabric useful for e.g. down jackets, comprises e.g. warm-keeping layer, ventilating waterproof layer, water-absorbing and heating layer, and base cloth layer arranged from inner side to outer side, where heating layer is obtained by applying water-absorbing self-heating substance.

WU K, LIU H, CHEN Y

Multi-layered mask is useful for e.g. protecting against the aerosol transmission of COVID-19 comprises five layers characterized that first and last layers are made of e.g. cotton textile layers, natural fiber layers, and nanofibers layer.

SHIREESHA G, KARBARI S R, UTTARA K M, SUBRAMANYA K