国家/地区 中国（2）
IPC部 B（2）
IPC大类 B31（2）
IPC小类 B31B（2）
IPC B32B027/10（2）
发明人
公开年
申请年
专利权人

Producing paper packaging bag comprises impregnating inner packaging base paper layer, and outer packaging base paper layer, drying, coating impregnated inner packaging base paper layer and outer packaging base paper layer with barrier adhesive material, hot pressing and cooling.

NI H, CHEN F, YANG J

Packaging material for forming individual liquid food packaging containers, comprises one or more layers of heat sealable material laminated to core, and carbon-based layer(s) provided to form workpiece of associated sealing system.

BETTI BENEVENTI G, BIERLEIN P, GUIDETTI G, WAMSLER M, HURDALEK L, BETTI B G, BENEVENTI G B