纸吸管原纸制备工艺研究

Study on preparing technology of paper straw base paper

以漂白硫酸盐针叶木浆和阔叶木浆为原料,制备出了纸吸管原纸.研究了浆料配比、湿强剂以及施胶剂用量等因素对原纸常规性能指标的影响,确定了原纸的最佳制备工艺;并通过测定温水抽出物含量,衡量了纸吸管原纸的使用安全性.结果表明:里纸、面纸的最佳原料配比分别为30∶70和40∶60(针叶木∶阔叶木)、湿强剂用量范围分别为0.50%~0.75%和0.75%~1.00%、施胶剂用量范围均为0.25%~0.30%.在此工艺条件下,原纸获得了较好的湿强度、抗张强度、吸收性等;当APMP用量为30%时,里纸、面纸的挺度分别提高了3.51%和2.23%;里纸、面纸的温水抽出物含量分别只有0.218%和0.206%,满足了纸吸管原纸的使用安全性.

The paper straw base paper was prepared from bleached softwood pulp and hardwood pulp,and the optimum preparation technology was determined by studying the influence of size ratio,wet strength agent and sizing agent dosage on the general performance index of the base paper.The safety of paper straw base paper was measured by measuring the content of warm water extract.The results showed that the best ratio of raw materials for lining paper and face paper is 30∶70 and 40∶60(softwood∶hardwood),the dosage range of wet strength agent for lining paper and face paper is 0.50%~0.75%and 0.75%~1.00%respectively,and the dosage range of sizing agent is 0.25%~0.30%.Under this condition,the base paper has better wet strength,tensile strength,absorption,etc.When the dosage of APMP is 30%,the stiffness of lining paper and face paper increased by 3.51%and 2.23%,respectively.The water extraction content of lining paper and face paper is only 0.218%and 0.206%respectively,which satisfied the safety of pipette base paper.