Cov dyes nyob qhov twg?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Feem ntau natural dyes los ntawm xim cov nroj tsuag, qhov zoo tshaj plaws-paub sawv daws yuav woad, weld thiab madder los ntawm cov teb chaws Europe, thiab brazilwood, logwood thiab indigo los ntawm lub tropics. Ib txhia, xws li cochineal, los ntawm kab thiab ib tug me me, nrog rau cov hlau thiab tooj liab ntsev, los ntawm cov pob zeb hauv av.

Kuj kom paub yog, qhov twg dyes siv?

Ncaj qha dyes yog siv ntawm paj rwb, ntawv, tawv, ntaub plaub, silk thiab nylon. Lawv kuj yog siv raws li pH ntsuas thiab raws li cov kab mob lom. Mordant dyes xav tau ib tug mordant, uas txhim kho lub ceev ceev ntawm lub xim tiv thaiv dej, lub teeb thiab hws.

Tsis tas li ntawd, qhov twg yog dye manufactured? Dyes feem ntau yog siv hauv textiles thiab ntawv. Nyob rau hauv lub dhau los 25 xyoo, zus tau tej cov dyes Hauv Tebchaws Meskas, Western Europe, thiab Nyij Pooj tau poob qis, thaum ntau lawm hauv cov tebchaws Esxias, tshwj xeeb hauv Suav teb, Is Nrias teb, thiab Kaus Lim Qab Teb, tau nce ntxiv.

Ib yam li ntawd, cov xim yog dab tsi?

Ntuj dyes yog tsim los ntawm cov nroj tsuag thiab minerals, ces yog ua ke nrog starches thiab seaweed rau ua paub tseeb tias nws yuav siv rau cov khoom siv. Synthetic dyes feem ntau yog ua los ntawm cov thee tar thiab roj av. Lawv sib txawv heev vim hais tias cov ntaub ntawv sib txawv xav tau cov tshuaj sib txawv ua tus xim ua raws.

Cov hluavtaws dyes tuaj qhov twg?

Synthetic organic dyes los los ntawm cracking crude roj. Cov xim tshwj xeeb, yam ntxwv, thiab ntau yam tuaj los ntawm cov tshuaj muab tau los ntawm cov khoom siv roj av. Lawv ua tsis tshwm sim hauv qhov, yog li peb categorize lawv li manmade dyes . “Organic” los los ntawm lub tswv yim tias lawv tseem muab tau los ntawm cov khoom siv organic, hauv qhov no, roj.