Acid Dyes Rau Dyeing Wool

Acid dyes yog thawj xim rau cov protein fibers xws li ntaub plaub thiab txhob lo lo ntxhuav. Cov txheej txheem dyeing feem ntau yog nyob ntawm ionic daim ntawv cog lus tsim los ntawm sulfonic acid pawg hauv cov dye molecule thiab cov amino pawg hauv cov ntaub plaub fiber ntau hauv cov kua qaub.

Dyeing yam ntxwv & Classification

Raws li cov txheej txheem dyeing thiab ceev ceev, acid dyes feem ntau muab faib ua peb pawg:

· Muaj zog Acid Dyes: Siv ntawm pH ntawm 2-4. Lawv muab cov khoom zoo tshaj plaws (kev tsiv teb tsaws chaw) tab sis muaj kev ntub dej nrawm dua. Lawv feem ntau tsim cov xim vibrant heev.

· Tsis muaj zog Acid Dyes: Siv ntawm pH ntawm 4-6. Cov dye molecules yog me ntsis complex, muab zoo dua ntub fastness thiab nruab nrab levelling. Feem ntau yog siv rau wool yarn thiab fabrics.

· Neutral Acid Dyes: Siv nyob ze - nruab nrab pH ntawm 6-7. Lawv cia siab rau van der Waals rog thiab hydrogen bonds rau fixation. Lawv nthuav tawm qhov ntub dej ceev tshaj plaws tab sis muaj qhov nruab nrab levelling, ua rau lawv haum rau qhov sib sib zog nqus ntxoov ntxoo.

Txheej Txheem Dyeing

Dyeing wool feem ntau siv qhov kub thiab txias -nce txoj kev. Cov txheej txheem dav dav yog raws li nram no:

1. Dissolving: Muab cov kua qaub dye nrog dej kub kom yaj, ces ntxiv cov auxiliaries xws li Glauber's ntsev (raws li tus neeg sawv cev leveling) thiab acetic acid los kho pH.

2. Pib Dyeing: Submerge cov ntaub plaub nyob rau hauv dyebath ntawm 40-50 degree.

3. Thaum tshav kub kub: nce qhov kub thiab txias ntawm tus nqi ntawm 1-2℃ib feeb kom txog thaum boiling (98-100 degree).

4. Tuav: Dye ntawm boiling rau 40-60 feeb kom tso cai rau tag nrho cov tsiv teb tsaws thiab fixation.

5. Txias & Yaug: Txias ib txwm thiab yaug tawm cov xim dyes.

Qhov zoo thiab qhov tsis zoo

· Qhov zoo:

· Wide Color Range: Ua kom ci, siab - xim saturation.

· Soft Hand Feel: Muab piv rau cov dyes reactive, cov txheej txheem yog maj mam, pab tswj wool lub ntuj softness.

· Qhov tsis zoo:

· Kev ntub dej nrawm: Qee cov xim acidic dyes muaj kev ntub dej tsis zoo, ua rau los ntshav lossis staining.

· Kev puas tsuaj fiber ntau: Cov kua qaub muaj zog los yog kub kub ntev tuaj yeem ua rau txo qis zog lossis muaj kev xav.