Txheej Txheem Ntawm Cationic Dyeing Txheej Txheem

Txheej txheem cationic dyeing txheej txheem

Raws li qhov kub nce, thaum kub nce mus txog lub khob hloov kub ntawm acrylic, molecular saw ntu txav yog tsim thiab sib zog, yog li qhov micro sib txawv ntawm cov xov qhia molecular tsub kom thiab nce, tom qab ntawd cov xim sib txawv rau sab hauv ntawm lub fiber, vim tias cov qauv acrylic nws nruj me ntsis, ntxiv rau cov zas xim thiab lub fiber muaj qhov hluav taws xob zoo dua, yog li cov xim sib txawv hauv sab hauv fiber ntau kuj sib txawv, yog li qee tus neeg xav tias qhov zas xim yog ib qho los ntawm ib lub rooj zaum zas rau diffusionThe Hauv luv, cov diffusion ntawm cationic dyestuffs hauv acrylics yuav tsum muaj lub zog siab thiab yog li kev tsiv teb tsaws yog qhov nyuaj. Lub ntsuas kub tau ua kom muaj zog nyob rau ntawm qhov sib txawv ntawm qhov sib zog.

I. Cov qauv thiab cov khoom ntawm cationic dyestuffs

Cationic dyestuffs yog cov tshuaj tiv thaiv tshiab tsim los ntawm cov khoom siv yooj yim kom thiaj li hloov kho kom haum rau cov tshuaj pleev xim ntawm cov acrylics. Cov dyes no tuaj yeem sib cais ua cov zoo cation xim xim hauv kev daws teeb meem, thiab yog li ntawd hu ua cationic dyes.

Thib ob, txoj cai yooj yim ntawm cationic dyeing

Cov ntawv pleev xim dawb lias ntawm cationic dyes tau muab tso ua ke nrog kev tsis zoo ntawm cov pab pawg ntawm cov fibers hauv cov txheej txheem ntsev, piv txwv li:

Fiber-COOH + CL-zas - → Fiber-COO-zas + HCL

Txoj kev khi no yog ib feem ntawm txheej txheem adsorption hauv zos. Qhov dyeing ntawm acrylics nrog cationic dyes muaj peb txheej txheem

1. Adsorption - acrylics raug pov thawj tsis zoo hauv dej vim muaj kev cuam tshuam ntawm cov kua qaub ua ke, ua kom yooj yim rau adsorb dye cations, yog li cov nqi tsis zoo nyob rau saum npoo ntawm cov fibers yog neutralized, thiab raws li cov xim ions txuas ntxiv mus rau hauv cov fibers, saum npoo ntawm cov fibers ua ntau raug them thiab cov fibers adsorb cov xim sib dua.

Diffusion - qhov sib txawv ntawm zas xim rau hauv fiber yog qhov txheej txheem ntau. Diffusion ntawm cov qog lwg me me feem ntau nyuaj thiab feem ntau nqa tawm nrog kev pab ntawm kev nce hauv kub.

3. Kev Txhim Kho - Txhim kho cov txheej txheem yog cov txheej txheem uas cov cations ntawm cov xim los ua ntsev nrog cov pab pawg anionic ntawm cov fibers.

C. Dyeing cov yam ntxwv ntawm cationic dyeing

Thaum cationic dyestuff muaj xim nyob rau acrylics, cov adsorption tau nrawm thiab tsis sib xws, thiab qhov kub tau sawv nrawm dhau thiab tsis zoo. Thaum cov zas xim tsis sib xws, nws nyuaj rau kev cia siab rau kev hloov cov zas kom tau txais kev zas xim. Vim li no, cov hauv qab no yuav tsum raug coj los txiav txim.

1. PH hloov kho: Txhawm rau txawm tias dhau txoj kev zas xim, cationic dyestuff dyeing feem ntau tswj tau zoo tshaj plaws ntawm tus nqi PH ntawm 4-5.

2. Kev ntsuas kub: qhov kub thiab txias tuaj yeem nce rau hauv tshooj, feem ntau qis dua 60 degrees, thiab qeeb dua li 60 degrees. 100 degrees yuav tsum ceev kom sov li 30-50 feeb tom qab kom paub tseeb tias nkag mus zoo, txwv tsis pub nws yuav cuam tshuam rau xim xim ceev.

3. Daim ntawv thov ntawm tus neeg saib xyuas qeeb: txhawm rau kom tau txais cov txiaj ntsig txawm tias zas xim, tus neeg sawv cev tuaj yeem tuaj yeem tso rau hauv cov xim da dej, rov tuaj yeem ua tus neeg sawv cev nws tus kheej tsis muaj xim cationic xim, uas tuaj yeem siv tau rau cov xim acrylic thaum cationic dyeing.

4. Kev Siv Hluav Taws Xob: Electrolytes tuaj yeem siv los txhawm rau txhawm rau pleev xim rau acrylics nrog cationi