Kraft reed pulp and oxygen delignified kra ft reed pulp were separately pretreated with Ciba Xylanase Irgazyme 40-X4, and then bleached with hydrogen peroxide.

• 硫酸盐苇浆或经氧脱木素的硫酸盐苇浆用木聚糖酶Irgazyme40-X4进行预处理，然后用过氧化氢漂白。