Casein: A product of skimmed milk used for sizing and as an adhesive in the manufacture of coated papers; also used in place of albumin as a sensitizer in plate coatings.

• 干酪素:制造粉纸所用的胶和粘合剂；是纯牛乳制成的产品。亦可代替蛋的胶，作印版的感光膜。