为了提高纸和纸板的表面强度防止水质液体的扩散和渗透，需要对纸和纸板进行施胶处理。 添加的助剂称作造纸施胶剂.施胶剂品种很多，浆内施胶剂主要有松香、未改性和改性淀粉PVA、烷基烯酮二聚体(AKD)、烯基琥珀酸酐(ASA)；表面施胶剂有改性和未改性淀粉、石蜡乳液、羧甲基纤维素及苯乙烯－马来酸酐共聚物等。
详细介绍了造纸施胶剂的试验工艺。
The testing processes of a rosin size used for papermaking are introduced in detail.
我国对马来松香的研制及其用作造纸施胶剂进行了十多年的研究。
The study of preparation of maleated rosins and their application as paper size was started in China in 1974.
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.
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