A commercial mixed cellulase and hemicellulase solution was used to the deinking of five month old colored offset newsprint and the deinking effectiveness was perfect.

• 用纤维素酶和半纤维素酶的混合酶液对存放5个月的100%25美国彩色胶印废报纸进行脱墨处理,获得了理想的脱墨效果。