国内外荧光增白剂的状况与展望

综述了国内外荧光增白剂的状况,展望了其发展趋势。     

荧光增白剂中三嗪杂质的测定方法研究

本文通过多次试验,确定了荧光增白荆中三嗪杂质的测定方法。本方法采用液相色谱-质谱联用仪和红外光谱对标准样品进行了定性;使用液相色谱进行分离,用263nm波长进行检测,峰面积外标法进行定量。给出了定量方法的线性回归方程,回收率90％～110％,最小检测限0．005％。     

Mechanism of Wool Whitening in the Rare Earth Assistant Dyeing Process

The keratins of wool underwent Photooxidation to form a weaker luminophor in visible blue region(λ_(max)=420nm),that reacts with cerium ion to produce an enhanced luminophor complex (λ_(max)=426 nm),itmakes wool white obviously.     

Whitening Effect for Wool Processed by Rare Earth in the Dyeing Processes

The wool which were processed by rare earth in the dyeing processes have soft and loose hair withpure-white tone and silky luster. A few papers concerned with the mechanism of wool dyeing in the presenceof rare earth~[1,2]. However, the distribution of the combining of rare earth ions with wool toward the color andluster of woollen has not been discussed yet. In this paper, the whitening effect of Inner Mongolia goatwool~([3]) processed by rare earth after coarse wool were pulled out was investigated by electronic spectral ana-lysis. The wool samples including normal and rare earth processed Inner Mongolia goat wool were supplied     

稀土在腈纶染色中的作用

80年代初,内蒙第一毛纺厂和北京第二毛线厂先后把稀土用于羊毛和腈纶的染色工艺,提高了产品质量并取得了明显的经济效益。最近,方建云等报道了羊毛染色中稀土