浆内施胶对纸和纸箱的强度都不利，对制造瓦楞纸板不利。
There was negative effect on the paper and container strength with inner sizing, and it was also bad for box producing line.
造纸施胶剂是一种十分重要的造纸助剂，可主要分为浆内施胶剂与表面施胶剂两大类。
As an important group of paper chemicals, internal sizing agents can mainly be divided into two dispensable groups comprising acidic sizing agents and neutral-to-alkaline sizing agents.
内施胶：纸浆在打浆或精磨时，加上松香、明矾或淀粉等胶料，使完成的书写或印刷用纸没有洇墨情况。
Intirnal sizing: Rosin, alum or starch sizing introduced into the papermaking stock at the beating or refining stage to prevent ink spread on printing and writing paper.
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