Textile Dyeing, Printing & Finishing

Ntawm no kuv yuav qhia cov ntaub ntawv hais txog cov ntaub dyeing, printing & xov txheej txheem.

Dyeing, printing & finishing yog cov txheej txheem tseem ceeb hauv kev tsim cov textiles vim tias lawv muab xim, zoo li, thiab kov rau cov khoom kawg.Cov txheej txheem yog nyob ntawm cov khoom siv, cov khoom siv thiab cov qauv ntawm cov xov paj thiab cov ntaub.Dyeing, printing & finishing tej zaum yuav nqa tawm nyob rau hauv ntau theem ntawm textile ntau lawm.

Ntuj fibers xws li paj rwb los yog ntaub plaub yuav dyed ua ntej yuav spun rau hauv yarns thiab yarns ua nyob rau hauv no hu ua fiber-dyed yarns.Dyes tuaj yeem muab ntxiv rau cov kev daws teeb meem los yog txawm nyob rau hauv cov khoom siv polymer thaum cov hluavtaws fibers yog spun, thiab, nyob rau hauv txoj kev no, cov tshuaj dyed yarns los yog spun-dyed yarns yog tsim.Rau cov xov paj-dyed fabrics, yarns yuav tsum tau dyed ua ntej weaving los yog knitting tshwm sim.Dyeing tshuab yog tsim los rau dyeing yarns nyob rau hauv daim ntawv ntawm ib tug xoob lub qhov txhab hanks los yog lub qhov txhab rau hauv pob.Xws li cov cav tov raug xa mus rau hank dyeing thiab pob dyeing tshuab feem.

Cov txheej txheem tiav kuv kuj tau ua rau ntawm cov khaub ncaws sib dhos.Piv txwv li, denim khaub ncaws ntxhua hauv ntau txoj kev, xws li ntxuav pob zeb lossis enzyme ntxuav, yog nrov heev hnub no.Cov tsoos tsho dyeing kuj tseem siv tau rau qee hom knitwear los tsim cov khaub ncaws kom tsis txhob muaj xim shading hauv lawv.

Txawm li cas los xij, feem ntau dyeing, luam ntawv & xov yog nqa tawm ntawm cov ntaub, uas cov ntaub yog woven lossis knitted thiab tom qab ntawd cov grey lossis "greige" lub xeev cov ntaub, tom qab kev kho mob ua ntej, dyed, thiab / los yog luam tawm, thiab tshuaj lom neeg los yog cov khoom tiav. .

Kev kho mob ua ntej

Txhawm rau kom ua tiav cov txiaj ntsig "predictable thiab rov tsim dua" hauv dyeing thiab tiav, qee qhov kev kho mob ua ntej yog tsim nyog.Nyob ntawm tus txheej txheem, fabrics yuav raug kho raws li ib daim los yog batch, los yog sewn ua ke siv saw stitches, yooj yim muab tshem tawm rau tom qab ua, tsim ntev ntev ntawm txawv batches rau tas mus li ua.

1. Hu nkauj

Singeing yog cov txheej txheem los hlawv cov fibers los yog pw tsaug zog ntawm cov ntaub nto kom tsis txhob muaj qhov sib npaug ntawm cov dyeing lossis luam ntawv blotches.Feem ntau hais lus, woven paj rwb grey ntaub yuav tsum tau hu nkauj ua ntej lwm yam kev kho mob pib.Muaj ntau ntau hom singeing tshuab, xws li lub phaj singer, rau cov menyuam hu nkauj thiab cov neeg hu nkauj roj.Lub phaj singeing tshuab yog hom yooj yim tshaj plaws thiab qub tshaj plaws.Daim ntaub yuav hu nkauj hla dhau ib lossis ob lub phaj tooj liab uas kub ceev kom tshem tawm cov pw tsaug zog tab sis tsis muaj scorching daim ntaub.Nyob rau hauv lub tshuab singeing tshuab, rhuab steel rollers yog siv es tsis txhob ntawm tooj liab daim hlau los muab kev tswj kom zoo ntawm cov cua sov.Gas singeing tshuab, nyob rau hauv cov ntaub ntawv hla dhau cov pa roj burners rau singe cov fibers nto, yog hom siv feem ntau niaj hnub no.Tus naj npawb thiab txoj hauj lwm ntawm cov burners thiab qhov ntev ntawm cov nplaim taws tuaj yeem hloov kho kom ua tiav qhov zoo tshaj plaws.

2. Desizing

Rau warp yarns, tshwj xeeb tshaj yog paj rwb, siv nyob rau hauv weaving, sizing, feem ntau yog siv cov hmoov txhuv nplej siab, feem ntau yog tsim nyog los txo cov xov paj plaub hau thiab ntxiv dag zog rau cov xov paj kom nws muaj peev xwm tiv taus lub weaving tensions.Txawm li cas los xij, qhov loj me ntawm daim ntaub tuaj yeem cuam tshuam cov tshuaj lom neeg lossis cov dyes los ntawm kev sib cuag cov fibers ntawm daim ntaub.Yog li ntawd qhov loj me yuav tsum tau muab tshem tawm ua ntej scouring pib.

Cov txheej txheem tshem tawm qhov loj ntawm daim ntaub yog hu ua desizing lossis steeping.Enzyme desizing, alkali desizing lossis acid desizing tuaj yeem siv.Hauv enzyme desizing, cov ntaub yog padded nrog dej kub kom swell cov hmoov txhuv nplej siab, thiab ces padded nyob rau hauv enzyme cawv.Tom qab muab tso rau hauv pawg rau 2 mus rau 4 teev, cov ntaub yog wahsed nyob rau hauv dej kub.Enzyme desizing yuav tsum tau siv sij hawm tsawg dua thiab ua rau cov ntaub puas tsawg dua, tab sis yog tias siv cov tshuaj me me es tsis txhob siv cov hmoov nplej, cov enzymes yuav tsis tshem tawm qhov loj me.Tom qab ntawd, txoj kev siv dav rau desizing yog alkali desizing.Cov ntaub yog impregnated nrog ib tug tsis muaj zog tov ntawm caustic soda thiab muab tso rau hauv ib tug steeping bin rau 2 mus rau 12 teev, thiab ces ntxuav.Yog tias tom qab ntawd, cov ntaub yog kho nrog dilute sulfuric acid, cov txiaj ntsig zoo tuaj yeem ua tiav.

Rau knitted fabrics, desizing tsis xav tau vim yarns siv nyob rau hauv knitting tsis loj.

3. Kev nplawm

Rau cov khoom grey ua los ntawm ntuj fibers, impurities ntawm fibers yog inevitable.Siv paj rwb ua piv txwv, yuav muaj cov quav ciab, cov khoom pectin nrog rau cov zaub uas muaj cov ntxhia hauv lawv.Cov impurities no tuaj yeem muab cov fibers nyoos xim daj thiab ua rau lawv hnyav.Cov waxy impurities nyob rau hauv cov fibers thiab roj me ntsis ntawm cov ntaub yuav muaj feem xyuam rau dyeing tau.

Tsis tas li ntawd, waxing los yog oiling tej zaum yuav tsim nyog los ua kom cov staple yarns mos thiab du nrog qis kev sib txhuam coefficients rau winding los yog knitting.Rau hluavtaws filaments, tshwj xeeb tshaj yog cov uas yuav tsum tau siv nyob rau hauv warp knitting, nto active cov neeg sawv cev thiab static inhibitors, uas feem ntau yog ib tug tshwj xeeb formulated roj emulsion, yuav tsum tau siv thaum lub sij hawm warping, txwv tsis pub cov filaments yuav nqa electrostatic nqi, uas yuav cuam tshuam loj heev rau knitting los yog weaving kev ua.

Tag nrho cov impurities nrog rau cov roj thiab cov quav ciab yuav tsum tau muab tshem tawm ua ntej dyeing thiab xov, thiab scouring tuaj yeem, rau qhov zoo, ua haujlwm rau lub hom phiaj.Ib qho ntawm feem ntau txoj kev ntawm scouring rau paj rwb grey ntaub yog kier khaub ncaws.Cov paj rwb tau ntim cov ntaub dawb huv hauv qhov ua kom nruj thiab ua kom cov cawv txiv ntoo alkaline tau sib tw tau ncig ua si hauv lub siab.Lwm txoj hauv kev uas feem ntau siv hauv scouring yog nruam steaming thiab scouring yog ua tiav nyob rau hauv serially txheej apparatus, uas gengerally muaj xws li ib tug mangle, ib tug J-box thiab ib tug menyuam tshuab ntxhua khaub ncaws.

Cov dej cawv alkaline yog siv rau ntawm cov ntaub los ntawm mangle, thiab tom qab ntawd, cov ntaub yog nkag mus rau hauv J-box, uas nyob rau hauv uas saturated steam yog txhaj los ntawm lub tshuab rhaub, thiab tom qab ntawd, cov ntaub yog piled uniformly.Tom qab ib lossis ntau teev, cov ntaub raug xa mus rau lub tshuab ntxhua khaub ncaws.

4. Ua kom dawb huv

Txawm hais tias feem ntau ntawm cov impurities hauv paj rwb lossis ntaub linen tuaj yeem raug tshem tawm tom qab scouring, cov xim ntuj tseem nyob hauv daim ntaub.Rau cov ntaub ntawv no yuav tsum tau dyed rau ib lub teeb xim los yog siv los ua cov ntaub hauv av rau prints, bleaching yog tsim nyog los tshem tawm cov xim inherent.

Cov tshuaj bleaching tiag tiag yog oxidizing tus neeg sawv cev.Cov tshuaj bleaching hauv qab no feem ntau yog siv.

Sodium hypochlorite (calcium hypochlorite kuj tseem siv tau) tej zaum yuav yog cov tshuaj bleaching uas nquag siv.Kev ntxuav nrog sodium hypochlorite feem ntau yog ua nyob rau hauv alkaline tej yam kev mob, vim hais tias nyob rau hauv nruab nrab los yog acidic tej yam kev mob, sodium hypochlorite yuav decomposed heev thiab oxidization ntawm cellulosic fibers yuav intensified, uas yuav ua rau cov cellulosic fibers ua oxidized cellulose.Tsis tas li ntawd, cov hlau xws li hlau, npib tsib xee thiab tooj liab thiab lawv cov tebchaw yog cov tshuaj catalytic zoo heev hauv cov decompositon ntawm sodium hypochlorite, yog li cov khoom siv los ntawm cov khoom siv tsis tuaj yeem siv rau hauv cov txheej txheem.

Hydrogen peroxide yog cov tshuaj tua kab mob zoo heev.Muaj ntau qhov zoo rau tshuaj dawb nrog hydrogen peroxide.Piv txwv li, bleached ntaub yuav muaj ib tug zoo whiteness thiab ib tug ruaj khov qauv, thiab txo cov ntaub lub zog yog tsawg tshaj li thaum bleached nrog sodium hypochlorite.Nws muaj peev xwm muab cov desizing, scouring thiab bleaching processess rau hauv ib txheej txheem.Cov tshuaj ntxuav tes nrog hydrogen peroxide yog generally ua nyob rau hauv ib tug qaug zog alkali tov, thiab stabilizers xws li sodium silicate los yog tri-ethanolamine yuav tsum tau siv los kov yeej cov catalytic ua los ntawm cov hlau hais saum toj no thiab lawv cov tebchaw.

Sodium chlorite yog lwm cov tshuaj ntxuav tes, uas tuaj yeem muab cov xim zoo nkauj rau hauv cov ntaub uas tsis muaj kev puas tsuaj rau cov fiber ntau thiab tseem tsim nyog rau kev ua haujlwm tas mus li.Kev ntxuav nrog sodium chlorite yuav tsum tau ua nyob rau hauv acidic tej yam kev mob.Txawm li cas los xij, raws li sodium chlorite decomposed, chlorine dioxide vapor yuav raug tso tawm, thiab qhov no ua rau tib neeg noj qab haus huv thiab muaj zog corrosive rau ntau cov hlau, yas thiab roj hmab.Yog li ntawd, titanium hlau feem ntau yog siv los ua cov khoom siv bleaching, thiab kev tiv thaiv tsim nyog tiv thaiv cov pa phem yuav tsum tau ua.Tag nrho cov no ua rau txoj kev bleaching kim dua.

Ua tsaug rau koj lub sijhawm.