摘要
研究了四磺酸类荧光增白剂和紫色、蓝色调色染料对纸的增白作用。结果表明四磺酸类荧光增白剂的最经济用量为0.3%~0.5%,紫色、蓝色染料能提高纸张白度但少量降低亮度,用CIE1976L*、a*、b*表示的纸张最佳色相范围为:b*/a*≈-2,a*=1~2.5,b*=-2~-6。对常用染料的调色效果作了比较。研究结果已在生产中得到验证。
The paper whitening effect of 4 sulpho groups F.W.A.and violet and blue shading dyes was investigated.The results indicated that the most economical dosage of 4 sulplo groups F.W.A is 03%~05%.Violet and blue dyes can improve whiteness but decrease ISO brightness and L* value a little.The best shade scale of paper indicated by CIE 1976 L*,a*,b* is:b*/a* -2,a*=1~25,b*=2~-6.The research results have been verified in mill running.
出处
《中国造纸》
CAS
北大核心
1998年第4期18-22,共5页
China Pulp & Paper