熒光(guang)增(zeng)白劑(ji)VBL( 用(yong)(yong)(yong)(yong)(yong)于純棉織物)其(qi)(qi)泛(fan)黃(huang)點(dian)(dian)(dian)為(wei)(wei)0 .5% , 熒光(guang)增(zeng)白劑(ji)DCB(用(yong)(yong)(yong)(yong)(yong)于腈綸(lun)(lun)增(zeng)白) 其(qi)(qi)泛(fan)黃(huang)點(dian)(dian)(dian)為(wei)(wei)0 .8% , 熒光(guang)增(zeng)白劑(ji)CH (用(yong)(yong)(yong)(yong)(yong)于腈綸(lun)(lun)膨體紗) 其(qi)(qi)泛(fan)黃(huang)點(dian)(dian)(dian)為(wei)(wei)3 .3% , Blankophor BBU(液(ye)狀) (Bayer 公(gong)司商品(pin), 用(yong)(yong)(yong)(yong)(yong)于純棉織物) 其(qi)(qi)泛(fan)黃(huang)點(dian)(dian)(dian)為(wei)(wei)1 .26% , Uvitex(ERN—P CGY 公(gong)司商品(pin), 用(yong)(yong)(yong)(yong)(yong)于滌綸(lun)(lun)織物) 其(qi)(qi)泛(fan)黃(huang)點(dian)(dian)(dian)為(wei)(wei)0 .8% , UvitexEBF 250%(漿狀) (CGY 公(gong)司商品(pin), 用(yong)(yong)(yong)(yong)(yong)于滌綸(lun)(lun)織物) 其(qi)(qi)泛(fan)黃(huang)點(dian)(dian)(dian)為(wei)(wei)3%。

那么, 為(wei)何(he)會產生增(zeng)(zeng)白(bai)作用(yong)不(bu)再隨織(zhi)(zhi)物上熒(ying)光(guang)增(zeng)(zeng)白(bai)劑濃度(du)添加而增(zeng)(zeng)強, 其主要原因是(shi): 因為(wei)織(zhi)(zhi)物上黃光(guang)的(de)強度(du)是(shi)有限的(de), 因而抵消該黃光(guang)(主波長在570nm 左右(you))所(suo)需求(qiu)的(de)由熒(ying)光(guang)增(zeng)(zeng)白(bai)劑吸收(shou)紫(zi)外(wai)線而發射出的(de)黃光(guang)的(de)補色光(guang)———藍紫(zi)色光(guang)也是(shi)有限的(de)。

液(ye)體熒(ying)光增白(bai)劑(ji)是近年迅速發展起(qi)來的一種劑(ji)型，也是具有發展潛力的一種劑(ji)型。液(ye)體增白(bai)劑(ji)隨(sui)著(zhu)液(ye)體洗滌劑(ji)的迅猛發展而發展,在造(zao)紙行業的應用(yong)也日顯其性,其應用(yong)范圍還在不斷擴大。

液(ye)體熒(ying)光增白劑在(zai)商(shang)品(pin)化(hua)加工方面(mian)具(ju)有(you)加工過程簡單不需干(gan)燥、便于(yu)改(gai)變溶(rong)(rong)液(ye)濃度、產(chan)品(pin)易于(yu)均勻一致(zhi),并(bing)可(ke)(ke)減(jian)少(shao)(shao)污水(shui)處理、節約能源、降(jiang)低成本、減(jian)少(shao)(shao)助(zhu)劑用量(如(ru)對水(shui)不溶(rong)(rong)性熒(ying)光增白劑其分(fen)散(san)劑用量僅相當于(yu)粉狀(zhuang)或(huo)(huo)顆粒狀(zhuang)產(chan)品(pin)的(de)1/5或(huo)(huo)更少(shao)(shao)).無(wu)粉塵(chen)飛揚等(deng)(deng)優點(dian)。在(zai)產(chan)品(pin)的(de)使用方面(mian)計量方便，可(ke)(ke)自動化(hua)加料,配料容易，提高了工作(zuo)效率，可(ke)(ke)避(bi)免粉狀(zhuang)或(huo)(huo)顆粒狀(zhuang)產(chan)品(pin)因溶(rong)(rong)解或(huo)(huo)分(fen)散(san)不好而產(chan)生的(de)印染疵(ci)點(dian),從根本上(shang)消除了粉塵(chen)飛揚,改(gai)善(shan)了工作(zuo)環境等(deng)(deng)。

雖然熒光增(zeng)白(bai)(bai)(bai)劑劑型(xing)比(bi)較(jiao)(jiao)(jiao)多(duo),但粉狀熒光增(zeng)白(bai)(bai)(bai)劑目前仍然是主要的商品(pin)劑型(xing)。適用(yong)于各種類型(xing)的熒光增(zeng)白(bai)(bai)(bai)劑。具有(you)對(dui)(dui)加工(gong)設備的適應能(neng)力強、操作(zuo)簡單、生(sheng)產的技術(shu)要求不高、包裝和(he)運(yun)(yun)輸比(bi)較(jiao)(jiao)(jiao)方便、產品(pin)的貯存穩(wen)定(ding)性(xing)好等優點。對(dui)(dui)印(yin)染廠(chang)和(he)熒光增(zeng)白(bai)(bai)(bai)劑生(sheng)產廠(chang)相對(dui)(dui)比(bi)較(jiao)(jiao)(jiao)分散存貯運(yun)(yun)輸周(zhou)期比(bi)較(jiao)(jiao)(jiao)長(chang)、氣候(hou)變化大的國家和(he)地區比(bi)較(jiao)(jiao)(jiao)適用(yong)。

同(tong)時,因粉(fen)狀熒光(guang)增(zeng)白劑(ji)的顆(ke)粒較(jiao)小，,在生產(chan)和使用過(guo)程中(zhong)容易造成粉(fen)塵飛揚而(er)污(wu)染環境(jing),這是粉(fen)狀劑(ji)型(xing)的缺(que)點(dian)，可加(jia)入一些(xie)防(fang)塵劑(ji),如石蠟油、低聚合(he)度的聚氧乙烯等制成防(fang)塵型(xing)粉(fen)狀熒光(guang)增(zeng)白劑(ji)。在防(fang)塵劑(ji)中(zhong)加(jia)入少量表(biao)面活(huo)性劑(ji)效果會更好。