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荧光增白剂厂家告诉你什么是荧光增白剂


网址:http://www.scvc8.com  时间:2018-11-06 10:45:14

荧光增白剂厂家告诉你什么是荧光增白剂
Fluorescent whitening manufacturers tell you what fluorescent brighteners are.
跟着荧光增白剂的广泛应用,越来越多的人开始对其发作喜好,那么你真的了解它吗?
With the wide application of fluorescent whitening agents, more and more people begin to like their attacks. Do you really understand it?
1.什么是荧光增白剂?
1. what is fluorescent whitening agent?
它是一种荧光染料,或称为白色染料,也是一种凌乱的有机化合物。它的特性是能激起入射光线发作荧光,使所染物质获得相似荧石的闪闪发光的效应,使肉眼看到的物质很白,抵达增白的效果。
It is a fluorescent dye, also known as white dye, and a messy organic compound. Its characteristic is that it can stimulate the fluorescence of incident light, and make the dyed substance obtain the effect of flashing like fluorite, so that the substance seen by the naked eye is very white, reaching the effect of whitening.
增白原理:在日光照射下,它能够吸收光线中肉眼不能看见的紫外线(波长为300-400nm),使分子激起,再回复到基态时,紫外线能量便消失一部分,进而转化为量较低的蓝紫光(波长为420-480nm)发射出来。这样,被效果物上的蓝紫光的反射量便得以添加,然后抵消了原物体上因黄光反射量多而构成的黄色感,在视觉上发作皎白、耀目的效果。
Whitening Principle: Under sunlight, it can absorb the invisible ultraviolet light (wavelength 300-400 nm) in the light, so that the molecule is stimulated, and then returned to the ground state, the ultraviolet energy will disappear part, and then converted into a lower amount of blue-violet light (wavelength 420-480 nm) emitted. In this way, the blue and purple light reflections on the effect object can be added, and then the Yellow feeling caused by the large yellow light reflections on the original object can be cancelled out. The visual effect is white and dazzling.
2.荧光增白剂的分类
2. classification of fluorescent whitening agents
按照其母体分类,大致可将它们分为碳环类、三嗪基氨基二苯乙烯类、二苯乙烯-三氮唑类、苯并噁唑类、呋喃,苯并呋喃和苯并咪唑类、1,3-二苯基-吡唑啉类、香豆素类、萘酰亚胺类和杂类等九类。下面就为咱们介绍其间的几大类。
According to their parent classification, they can be roughly divided into nine categories: carbon ring, triazinyl aminodistilbene, stilbene-triazole, benzoxazole, furan, benzofuran and benzimidazole, 1,3-diphenyl-pyrazoline, coumarin, naphthalimide and miscellaneous. Here are some of the major categories.
荧光增白剂厂家
三嗪基氨基二苯乙烯类
Three azine amino two styrene
三嗪基氨基二苯乙烯是由4,4'-二氨基-二苯乙烯-2,2'-二磺酸(DSD酸)与三聚氯氰的缩合物,具有该结构类型的增白剂是现有已商品化的增白剂中的品种比较多的,约80%以上的增白剂都属于此结构类型。
Triazine-amino-stilbene is a condensate of 4,4'-diamino-stilbene-2,2'-disulfonic acid (DSD acid) and cyanuric chloride. The brighteners with this structure type are the most widely used commercial brighteners. About 80% of the brighteners belong to this structure type.
二苯乙烯-三氮唑类
Two styrene three azazole
二苯乙烯-三氮唑是二苯乙烯类化合物与三氮唑类化合物的缩合物,该类增白剂面世较早。它的缺点是荧光色彩偏绿,对纤维增白的白度不够高,现已退出商场。
Stilbene-triazole is a condensate of stilbene compounds and triazole compounds, and this kind of whitening agent came into being earlier. Its disadvantage is that the fluorescent color is green, and the whiteness of fiber whitening is not high enough.
呋喃,苯并呋喃和苯并咪唑类
Furans, benzofurans and benzimidazolidones
呋喃,苯并呋喃和苯并咪唑自身不是它的母体,但它们都是构成它的结构单元。它们可与其他结构单元(如联苯)一同组成功能良好的荧光增白剂。呋喃与联苯的组合在结构上相似于苯乙烯与联苯的组合。含磺酸基团的此类组合具有很好的水溶性,特别合适尼龙纤维和纤维素纤维的增白,典型化合物。
Furan, benzofuran and benzimidazole are not their parent, but they are the structural units that make up them. They can be used in conjunction with other structural units, such as biphenyl, to form fluorescent brighteners with good functions. The combination of furan and biphenyl is structurally similar to the combination of styrene and biphenyl. Such combinations containing sulfonic acid groups have good water solubility, especially suitable for whitening of nylon and cellulose fibers, typical compounds.
综上所述有山东吉凌化工178彩票注册提供,想了解更多知识,欢迎关注我们的网站:谢谢支持!
In summary, all of the above-mentioned information provided by Shandong Jiling Chemical Co., Ltd. would like to know more about the manufacturers of fluorescent brighteners. Welcome to our website: http://www.wfzhongtebao.com. Thank you for your support!

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