国家/地区 中国（2）
IPC部 D（2）
IPC大类 D21（2）
IPC小类 D21H（2）
IPC D21H019/38（2）
发明人
公开年 2023（2）
申请年 2023（2）
专利权人

Producing pit paper useful in paper boxes for storing food, comprises e.g. mixing crushed waste paper, diatomaceous earth, glass fiber, starch, graphene and water, stirring, pulping, papermaking, drying, embossing, coating adhesive on corrugated core layer, adhering flat layer, drying and coating.

ZHOU X, LIU Y

Improving brittleness of melamine-impregnated paper comprises e.g. glue impregnating, mixing polyvinyl acetate, polyvinylidene fluoride and absolute ethanol, ultrasonically vibrating, applying the emulsion on both sides of obtained melamine impregnated paper, drying and glue coating.

YUAN Y, LI Y, YUAN R