国家/地区 中国（4）
IPC部 B（4）
IPC大类 B65（4） B32（2）
IPC小类 B65D（4）
IPC B65D030/08（4）
发明人
公开年 2021（4）
申请年 2020（3） 
专利权人

Multi-layer nonwoven fabric of bag with heat preservation function, has insulating layer that comprises glass cotton layer, sponge rubber layer and phenolic resin layer.

ZHU M

Composite laver bag, has nylon film layer whose back part is provided with high barrier layer, where back part of high barrier layer is provided with printing layer and rear part of printing layer is provided with polyethylene film layer.

YANG S

Non-preservative packaging bag structure, has waterproof film whose front side upper end is formed with air outlet hole, where inner part of air outlet hole is movably inserted with fixed column, and bag body whose outer surface is provided with film.

JIANG R

Antibacterial high-barrier external diagnostic packaging bag, has packaging bag main body whose outer wall is fixedly connected with transparent plate, and isolation layer whose right side is fixedly connected with inner layer.

YAN B