荧光增白剂HST在纸张表面增白处理中的应用  

Application of Fluorescent Whitening Agent HST on Surface Whitening Treatment of Paper

作　　者：石建博[1] 王志杰[1,2] 徐强[1] 刘秀君 高飞 

机构地区：[1]陕西科技大学轻工与能源学院,陕西西安710021 [2]教育部轻化工助剂化学与技术重点实验室,陕西科技大学,陕西西安710021 [3]山西青山化工有限公司,山西临猗044100

出　　处：《纸和造纸》2013年第4期43-47,共5页Paper and Paper Making

摘　　要：研究荧光增白剂HST在纸张表面施胶和涂布中的添加工艺,并对比几家企业市售产品的增白效果。研究表明:用醚化淀粉配制成1%的表面施胶液,加入10%(相对于淀粉固含量)荧光增白剂后,白度增幅达到55%以上;涂料固含量30%,增白剂添加量0.8%,涂布后纸页白度提高55.57%,且经UV照射白度损失最小,仅为4.65%。对比不同企业HST的增白效果,发现表面施胶过程中,HZ及YC新增白剂白度增幅可达56%以上,且YC的明度指数增幅为0.92%,增白效果较佳;在纸页涂布应用中,白度性能从高到低依次为:HZ>YC05-10>YC05-7>YC03-6>SX,其中HZ和YC05-10产品的增白幅度可达到54.7%,效果显著。Additive process of fluorescent whitening agent HST in surface sizing and coating process of paper was studied, while comparing whitening effect of HST of different enterprises. The research showed that the sizing agent was formulated by 1% etherified starch and 10% （relative to the solids content of starch） HST. When it was added in pulp, the increase in whiteness is more than 55%; when the solid content of coating adhesive is 30% and dosage of liST is 0.8%, CIE whiteness of coated paper increased by 55.57%, meanwhile the paper is irradiated by UV for the durability test of the whiteness and loss of whiteness is minimum, only 4.65%. Comparing whitening effect of different HST of enterprises, it was found that the whiteness of HZ and YC new craft increased by 56% and brightness index of YC new craft increased by 0.92%, and whitening effect is better in the sizing process under this condition; In the application of paper coating, the whiteness from high to low as follows： HZ〉YC05-10〉YC05-7〉YC03-6〉 SX, and HST from HZ and YC05-10 whitening increased by 54.7%, and it gets a pronounced effect of whiteness.

关 键 词：荧光增白剂HST 表面施胶 纸张涂布 白度性能 

分 类 号：TS727.5[轻工技术与工程—制浆造纸工程]