Puas muaj sulfur dub yaj hauv dej txias?

Tau kawg. Ntawm no yog cov lus piav qhia ntxaws ntxaws ua lus Askiv, ua raws li cov qauv qub raws li cov lus teb dhau los.

Luv teb

Tsis yog, Sulfur Black tsis tuaj yeem yaj hauv dej txias.

Nws yuav tsum muaj cov txheej txheem tshuaj tshwj xeeb uas muaj cov cua sov thiab cov neeg ua haujlwm txo kom dhau los ua soluble.

Kev piav qhia ntxaws

1. Vim li cas nws thiaj tsis yaj hauv dej txias

Sulfur Black yog cov tshuaj zawv plaub hau. Nws cov molecules loj thiab complex, thiab lawv tsis muaj dej -solubilizing pawg (xws li sulfonic acid pawg -SO₃⁻). Qhov no txhais tau hais tias cov xim xim tsis tuaj yeem cuam tshuam zoo nrog cov dej molecules los tsim cov tshuaj.

Xav txog nws zoo li sib tov xuab zeb rau hauv dej - cov xuab zeb yuav ntws thiab nyob tab sis yuav tsis yaj tiag tiag.

2. Txoj hau kev kom raug: Kev txo qis thiab kev sib cais

Txhawm rau ua kom Sulfur Black siv tau rau dyeing, nws yuav tsum tau ua cov kauj ruam tshuaj tseem ceeb hu ua txo. Cov txheej txheem no yuav tsum muaj cua sov siab thiab txo tus neeg sawv cev.

Txheem txheej txheem:

1. Pasting: Ua ntej, qhuav Sulfur Black hmoov yog tov nrog ib tug me me ntawm cov dej sov (xws li, 40-50 degree) los ua ib tug du muab tshuaj txhuam. Qhov no tiv thaiv cov dye los ntawm clumping thaum ntxiv rau lub ntsiab dye da dej.

2. Txo / Dissolution:

· Dej ntxiv rau hauv lub nkoj dyeing.

· Ib tus neeg txo qis tau ntxiv, feem ntau yog Sodium Sulfide (Na₂S).

· Cov tshuaj yog rhuab mus rau qhov kub siab (siab tshaj 90 degree) thiab tuav rau 10-15 feeb.

· Cov tshuaj pleev xim yog tom qab ntawd maj mam ntxiv rau cov tshuaj txo qhov kub.

Yuav ua li cas Chemically?

· Cov tshuaj txo qis (Sodium Sulfide), nyob rau hauv tshav kub, rhuav tshem cov disulfide bonds (-S-S-) nyob rau hauv cov Sulfur Black molecules thiab txo lawv mus rau thiol pawg (-SH).

· Nyob rau hauv cov xwm txheej alkaline muab los ntawm sulfide, cov -SH pawg ionize los ua dej-soluble thiyl anions (-S⁻).

· Qhov hloov pauv ntawm cov xim no hu ua leuco daim ntawv lossis vat. Cov tshuaj tov xim hloov los ntawm dub mus rau yellowish -xim av los yog txiv ntseej ntsuab. Cov leuco compound no yog cov dej -soluble daim ntawv uas tuaj yeem nkag mus rau cov ntaub ntawv fibers.

3. Cov txheej txheem dyeing

1. Cov ntaub (feem ntau yog cellulose fibers xws li paj rwb, rayon, los yog hemp) yog immersed nyob rau hauv lub kub leuco compound dye da dej.

2. Dyeing yog nqa tawm, tso cai rau cov soluble leuco compound absorbed rau hauv fiber.

3. Oxidation: Tom qab dyeing, cov ntaub yog raug rau huab cua los yog kho nrog oxidizing tus neeg sawv cev (xws li hydrogen peroxide). Oxygen hloov kho qhov qub insoluble disulfide daim ntawv cog lus (-S-S-) hauv fiber ntau, xauv cov xim rau hauv qhov chaw thiab tsim cov xim dub kawg.

4. Thaum kawg, cov ntaub yog rinsed thiab soaped kom tshem tawm tej nto dye thiab txhim kho xim ceev.

Cov ntsiab lus

Khoom Piav Qhia

Hauv dej txias Insoluble. Nws tsuas tuaj yeem tsim ib qho kev ncua uas yuav daws tau.

Solubility Condition Can only be "dissolved" as a leuco compound under high temperature (>90 degree) nyob rau hauv lub xub ntiag ntawm ib tug txo tus neeg sawv cev (piv txwv li, Sodium Sulfide).

Cov ntsiab lus tseem ceeb Cov "kev sib cais" yog qhov tseem ceeb ntawm cov tshuaj txo cov tshuaj tiv thaiv, tsis yog ib qho yooj yim lub cev dissolving txheej txheem.

Yog li ntawd, txhawm rau siv Sulfur Black rau dyeing, koj yuav tsum ua raws li cov txheej txheem kev lag luam uas raug siv sodium sulfide thiab qhov chaw tshav kub. Tsuas yog sim yaj nws hauv dej txias lossis dej kub ib leeg yuav tsis ua haujlwm.