Vim li cas spandex fabrics nquag yellowing?

Spandex yog cov khoom siv fiber ntau hauv peb lub neej. Qhov tseem ceeb tshaj plaws yog elasticity zoo, thiab nws muaj qhov zoo ntawm qhov tsis zoo, qhov loj elastic modulus (elongation ntawm kev tawg tuaj yeem ncav cuag 400 feem pua ​​-800 feem pua), thiab me me tshwj xeeb lub ntiajteb txawj nqus. Spandex tuaj yeem sib xyaw nrog cov ntaub plaub, paj rwb, polyester, acrylic, viscose thiab lwm yam ntaub ntawv, thiab cov ntaub ua tau yog mos, elastic, thiab nyiam hnav. Hauv khaub ncaws thiab ris tsho hauv qab, spandex fabrics yog nrov dua ntawm cov poj niam vim hais tias cov poj niam cov khaub ncaws muaj kev xav tau ntau dua rau kev sib raug zoo.

Piv txwv li, cov poj niam nyiam lace fabrics (xws li spandex) yog feem ntau yellowing tom qab hnav los yog tawm rau lawv ntev. Yog vim li cas?

Txij li thaum cov saw hlau molecular ntawm spandex muaj ntau pawg reactive xws li cov amino pawg, nws yooj yim tig daj thaum lub sij hawm kub kub los yog cia, uas cuam tshuam rau qhov zoo ntawm cov khoom tiav, tshwj xeeb tshaj yog fluorescent whitening fabrics thiab lub teeb xim ntaub. Txhawm rau txhim kho kev khiav haujlwm ntawm spandex thaum lub sij hawm spinning, silicone roj lubricants thiab lwm yam auxiliaries yog siv nyob rau hauv cov txheej txheem weaving. Cov additives lawm degrade dhau lub sij hawm ua rau cov fibers daj. Tsis tas li ntawd, spandex nws tus kheej tsis yooj yim rau xim, uas yog, cov pa dyes tsis tuaj yeem xim spandex, yog li tom qab cov ntaub dyed, yog tias qhov txo qis thiab tu tsis txaus, qhov tshwm sim hu ua yellowing tshwm sim kuj tshwm sim.

Qhov muag zoo tshaj plaws dub spandex filament ---dope dyeing tshuab

Dub spandex yog siv dav hauv cov khaub ncaws fabrics. Nyob rau hauv xyoo tas los no, lub domestic dub spandex filament muaj peev xwm tau txuas ntxiv nthuav dav, thiab cov khoom lag luam tau raug txhim kho tas li. Cov dub spandex filament ncaj qha spun los ntawm cov txheej txheem tshwj xeeb xws li dope dyeing lossis online ntxiv tsis tsuas yog muaj cov xim dub ntau dua thiab ntev ntev, ntau dua xim ceev thiab zoo heev ntxuav, tab sis kuj txuag cov txheej txheem dyeing ntawm fiber. Kev siv hluav taws xob hauv cov txheej txheem dyeing, txo cov pa phem ib puag ncig.