Cov tshuaj pleev xim rau cov tshuaj pleev ib ce yog hais txog cov dej-soluble dyes uas muaj cov acidic pawg nyob rau hauv cov qauv dye, uas feem ntau yog dyed nyob rau hauv acidic tej yam kev mob.
Kev piav qhia ntawm cov kua qaub dyes
1. Keeb kwm ntawm acid dyes:
Xyoo 1868, qhov ntxov tshaj plaws acid dye triarylmethane acid dye tau tshwm sim, uas muaj peev xwm dyeing muaj zog tab sis tsis ceev ceev;
Xyoo 1877, thawj cov kua qaub dye acid liab A siv rau wool dyeing yog synthesized, thiab nws cov qauv tsim tau txiav txim siab;
** 0 xyoo tom qab, cov kua qaub dyes nrog cov qauv anthraquinone tau tsim, thiab lawv cov chromatograms tau ua tiav ntau dua;
Txog rau tam sim no, cov kua qaub dyes muaj ze li ntau pua hom xim, uas tau siv dav hauv dyeing ntawm wool, silk, nylon thiab lwm yam fibers.
2. Cov yam ntxwv ntawm cov kua qaub dyes:
Cov pab pawg acidic hauv cov kua qaub dyes feem ntau yog cov pab pawg sulfonic acid (-SO3H), uas muaj nyob rau ntawm cov xim molecules hauv daim ntawv ntawm sulfonic acid sodium ntsev (-SO3Na), thiab qee cov dyes yog acidic nrog carboxylic acid sodium ntsev (-COONa). ).pab pawg.
Nws yog tus cwj pwm los ntawm cov dej zoo solubility, ci xim, ua tiav chromatogram, cov qauv molecular yooj yim dua li lwm cov dyes, tsis muaj qhov sib txuas ua ke ntev hauv cov xim molecule, thiab qis directivity ntawm cov xim.
3. Cov tshuaj tiv thaiv mechanism ntawm acid dyes:
Classification ntawm acid dyes
1. Kev faib tawm raws li cov qauv molecular ntawm tus niam txiv dye:
Azos (60%, broad spectrum) Anthraquinones (20%, feem ntau yog xiav thiab ntsuab) Triarylmethanes (10%, ntshav, ntsuab) Heterocycles (10%, liab, ntsuab) ntshav)
2. Kev faib tawm los ntawm pH ntawm dyeing:
Muaj zog acid da dej acid dye: pH 2.5-4 rau dyeing, zoo lub teeb ceev ceev, tab sis tsis zoo ntub fastness, ci xim, zoo levelness;Tsis muaj zog acid da dej acid dye: pH 4-5 rau dyeing, molecular qauv ntawm dye Qhov feem ntawm sulfonic acid pawg nyob rau hauv nruab nrab yog me ntsis qis, yog li cov dej solubility yog me ntsis zuj zus, cov ntub kev kho mob ceev ceev yog zoo dua li cov muaj zog acid da dej. dyes, thiab lub levelness yog me ntsis zuj zus.Cov dej tsis huv ntawm cov kua qaub dyes: pH tus nqi ntawm dyeing yog 6-7, qhov feem pua ntawm sulfonic acid pawg nyob rau hauv cov xim molecular qauv yog qis dua, cov dye solubility yog tsawg, lub levelness tsis zoo, xim tsis kaj txaus, tab sis ntub dej. ceev ceev yog siab.
Cov ntsiab lus hais txog acid dyes
1. Xim ceev:
Cov xim ntawm textiles yog resistant rau ntau yam lub cev, tshuaj thiab biochemical teebmeem nyob rau hauv lub dyeing thiab tiav cov txheej txheem los yog nyob rau hauv tus txheej txheem ntawm kev siv thiab noj.2. Txuj qhov tob:
Cov txheej txheem ntawm kev lees paub qhov tob uas txhais qhov nruab nrab qhov tob li 1/1 tus qauv qhov tob.Cov xim ntawm tib tus qauv qhov tob yog qhov sib npaug ntawm lub hlwb, yog li cov xim nrawm tuaj yeem muab piv rau tib lub hauv paus.Tam sim no, nws tau tsim rau tag nrho rau qhov tob ntawm 2/1, 1/1, 1/3, 1/6, 1/12 thiab 1/25.3. Dyeing qhov tob:
Qhia tawm raws li qhov feem pua ntawm cov dye mass rau fiber ntau (ie OMF), dye concentration txawv raws li qhov sib txawv ntxoov.4. Discoloration:
Qhov kev hloov ntawm qhov ntxoov ntxoo, qhov tob lossis ci ntsa iab ntawm cov xim ntawm cov ntaub dyed tom qab ib qho kev kho mob, los yog kev sib xyaw ua ke ntawm cov kev hloov no.5. Stain:
Tom qab qee qhov kev kho mob, cov xim ntawm cov ntaub dyed yog pauv mus rau cov ntaub ntawv uas nyob ib sab, thiab cov ntaub hauv ob sab phlu yog stained.6. Grey qauv daim npav rau kev ntsuam xyuas cov xim tsis zoo:
Hauv kev sim xim nrawm, tus qauv grey qauv daim npav siv los ntsuas qhov degree ntawm discoloration ntawm cov khoom dyed feem ntau hu ua daim npav discoloration qauv.7. Grey qauv daim npav rau kev ntsuam xyuas staining:
Nyob rau hauv cov xim ceev ceev, tus qauv grey qauv daim npav siv los ntsuas qhov degree ntawm staining ntawm cov khoom dyed rau hauv ob sab phlu feem ntau hu ua daim npav staining.8. Xim ceev ceev:
Raws li kev ntsuam xyuas xim ceev, qhov degree ntawm discoloration ntawm dyed fabrics thiab cov degree ntawm staining rau cov ntaub ntawv thaub qab, cov xim ceev ceev cov khoom ntawm textiles yog ntsuas.Ntxiv nrog rau lub teeb nrawm ntawm yim (tshwj tsis yog AATCC tus qauv lub teeb nrawm), tus so yog tsib-theem system, qib siab dua, zoo dua qhov ceev ceev.9. Npuag ntaub:
Hauv kev sim xim ceev ceev, txhawm rau txiav txim siab txog qib ntawm staining ntawm cov ntaub dyed rau lwm cov fibers, cov ntaub dawb uas tsis muaj xim yog kho nrog cov ntaub dyed.
Plaub, cov xim ceev ceev ntawm cov kua qaub dyes
1. Ceev ceev rau hnub ci:
Kuj tseem hu ua xim nrawm rau lub teeb, lub peev xwm ntawm cov xim ntawm textiles los tiv thaiv lub teeb pom kev zoo, cov qauv tshuaj xyuas dav dav yog ISO105 B02;
2. Xim ceev rau kev ntxuav (dej immersion):
Kev tiv thaiv ntawm cov xim ntawm textiles rau kev ntxuav nyob rau hauv ntau yam kev mob, xws li ISO105 C01C03E01, thiab lwm yam.;3. Xim ceev rau txhuam:
Cov xim tsis kam ntawm textiles rau txhuam tuaj yeem muab faib ua kom qhuav thiab ntub ntub nrawm nrawm.4. Xim ceev rau cov dej chlorine:
Kuj tseem hu ua chlorine pas dej ceev ceev, nws feem ntau ua los ntawm kev ua raws li cov ntsiab lus ntawm cov tshuaj chlorine hauv cov pas dej da dej.Lub degree ntawm chlorine discoloration ntawm cov ntaub, xws li haum rau nylon swimwear, txoj kev tshawb pom yog ISO105 E03 (zoo chlorine ntsiab lus 50ppm);5. Xim ceev rau hws:
Kev tiv thaiv ntawm cov xim ntawm textiles rau tib neeg hws tuaj yeem muab faib ua kua qaub thiab alkali perspiration ceev raws li acidity thiab alkalinity ntawm cov hws kuaj.Cov ntaub dyed nrog acid dyes feem ntau yog kuaj rau alkaline perspiration ceev ceev.
Post lub sij hawm: Lub Xya hli ntuj-21-2022