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山东吉凌化工178彩票注册告诉你荧光增白剂的增白原理


网址:http://www.scvc8.com  时间:2019-03-06 11:34:47

山东吉凌化工178彩票注册告诉你荧光增白剂的增白原理
Shandong Jiling Chemical Co., Ltd. tells you the whitening principle of fluorescent whitening agent
由于纤维中木质素的残存,及制浆进程中化学药剂的运用,使纸张总是有黄的色光,以光学的原理来说,即纸张吸收了自然光的较短波长的光能,反射光中的蓝一紫色可见光稍嫌缺乏,而招致我们看见的纸张偏黄。荧光增白剂的运用即是在紫外光(Uv)的安慰下,释放出420~450 nlIl波长的荧光,以补充缺乏的蓝一紫色可见光段波长,并且添加全反射光的视感光量,从而,可添加纸张的自感。荧光增白剂是具有光学性添加白色感作用的染料,因而,我们又称荧光增白剂爲光学增白剂,独自的化学漂白无法到达令人称心的白度,并且过量漂白会损害纤维,因此,荧光增白剂被以为是抄造白色纸张比较具经济效益的药剂。
Because of the residual lignin in the fibers and the use of chemical agents in the pulping process, paper always has yellow color light. According to the principle of optics, paper absorbs the shorter wavelength of natural light, and the blue-purple visible light in the reflected light is slightly lacking, which causes the paper we see to be yellowish. The use of fluorescent whitening agent is to release 420-450 nlIl wavelength fluorescence under the consolation of ultraviolet light (Uv) to supplement the lack of blue-purple visible band wavelength, and add the total reflective light of the visual sensitivity, so as to add the self-feeling of paper. Fluorescent whitening agent is a kind of dyestuff with optical whitening effect. Therefore, we call it optical whitening agent. Chemical bleaching alone can not achieve satisfactory whiteness, and excessive bleaching will damage the fibers. Therefore, fluorescent whitening agent is considered to be the most economical agent for making white paper.
造纸用荧光增白剂的类型和功效造纸用的荧光增白剂大多属于阴离子间接性染料。普通造纸用的荧光增白剂可根据其磺化水平分爲三类:
Types and functions of fluorescent brighteners for paper making Most of the fluorescent brighteners for paper making belong to anionic indirect dyes. Fluorescent brighteners for general paper making can be classified into three categories according to their sulfonation level:
荧光增白剂OB-1
普通型:具有足够的纤维亲和力、良好的酸碱值波动性、与淀粉间有良好的相容性,属于四磺酸型的荧光增白剂,如NT一、NT逐个B。间接型:具有良好的纤维亲和力、荧光强度高,用量少,很经济,但酸碱值波动性差,属于二磺酸型的荧光增白剂,如NT一8。
Common type: with sufficient fiber affinity, good acid-base fluctuation and good compatibility with starch, it belongs to fluorescent whitening agent of tetrasulfonic acid type, such as NT-1 and NT-B one by one. Indirect type: good fiber affinity, high fluorescence intensity, low dosage, very economical, but the fluctuation of acid-base value is poor, belongs to disulfonic acid type fluorescent whitening agent, such as NT-8.
涂布型:和纤维的亲和力较差,不易吸附于纤维,却能分散在任何条件的涂料里,尤其能顺应各种接着剂和阳离子物质,本钱较高,属于六磺酸型荧光增白剂,如荧光增白剂RSB。
Coating type: It has poor affinity with fibers, is not easy to adsorb on fibers, but can be dispersed in coatings under any conditions, especially in conformity with various additives and cationic substances, and has high cost. It belongs to hexasulfonic acid type fluorescent whitening agent, such as fluorescent whitening agent RSB.
特殊型:和纤维具有较高的亲和力,耐候功能极佳,成品纸能达很高白度,耐酸碱功能也较好,但价钱较昂贵,如荧光增白剂FNW。
Special type: It has high affinity with fibers, excellent weatherability, high whiteness of finished paper, good acid and alkali resistance, but the price is more expensive, such as fluorescent whitening agent FNW.
综上所述有山东吉凌化工178彩票注册提供,想了解更多荧光增白剂OB-1知识,欢迎关注我们的网站:http://wwwjilinghuagongcom谢谢支持!
In summary, all the above-mentioned information provided by Shandong Jiling Chemical Co., Ltd. would like to know more about fluorescent brightener OB-1. Welcome to our website: http://wwjilinghuagongcom. Thank you for your support!

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