制浆造纸厂一般通过木片风化或贮存来降低木片中的树脂含量,这样可以减少进入工厂的树脂,在制浆造纸过程中减少树脂沉积。然而,木片贮存时间过长,也会引起霉点、发脆和酸性高等变质现象。当木片堆的温度达到60～70℃,半纤维素分子中的乙酰 Pulp and paper mills generally reduce the resin content of chips by weathered or stored chips, which reduces the amount of resin that enters the factory and reduces resin deposition during the pulp and paper manufacturing process. However, the long storage time of the wood chips will also cause mildew, brittle and acidic deterioration. When the temperature of the chip stack reaches 60-70 ° C, acetyl in the hemicellulose molecule