Nyob rau hauv textile dyeing thiab xov system, txawm hais tias pretreatment agents koom nyob rau hauv pretreatment theem, lawv muaj ib tug tseem ceeb sib txawv vim variations ntawm fiber ntau thiab ntau yam txheej txheem hom phiaj. Kev nkag siab tob txog cov txheej txheem ntawm kev nqis tes ua thiab thaj tsam siv tau ntawm ntau yam tshuaj kho ua ntej yog qhov yuav tsum tau ua ua ntej kom ua tiav cov txiaj ntsig tau zoo thiab qis dua - kev noj haus.
Los ntawm qhov kev xav ntawm lub hom phiaj tshuaj, qhov sib txawv tseem ceeb ntawm pretreatment agents rau natural fibers thiab tshuaj fibers nyob rau hauv hom impurities thiab lawv cov logic tshem tawm. Cov paj rwb fibers muaj tsis yog - cellulose impurities xws li waxes thiab pectin. Cov tshuaj Scouring feem ntau yog tsim los ntawm anionic lossis nonionic surfactants, uas tev tawm cov txheej txheem hydrophobic los ntawm emulsification thiab nkag mus. Tib lub sijhawm, cov neeg ua haujlwm chelate yog xav tau rau cov hlau ions nyuaj los tiv thaiv oxidation thiab yellowing. Wool, vim nws cov qauv scaly thiab nitrogen-muaj cov khoom, yog qhov ua rau muaj kev xav. Nws cov pretreatment agents tsom mus rau qhov maj mam degradation ntawm scaly nto los ntawm cov enzymes lom (xws li proteases), ntxiv los ntawm antistatic agents kom txo tau fiber ntau entanglement, tsim ib tug stark sib piv rau cov muaj zog alkaline ib puag ncig ntawm paj rwb pretreatment agents. Tshuaj fiber ntau pretreatment tsom rau ntawm qhov chaw inertia hloov kho: polyester alkali txo cov neeg ua hauj lwm yuav tsum muaj alkali cov neeg ua hauj lwm thiab penetrants nrog cov qauv tshwj xeeb kom meej swell amorphous cheeb tsam yam tsis muaj kev puas tsuaj rau thaj tsam crystalline; nylon, vim tsis sib npaug ntawm cov amino pawg faib, yuav tsum muaj cov kua qaub / alkali regulators kom dynamically sib npaug pH kom stabilize tus nqi thiab tsis txhob muaj xim txawv thaum dyeing, uas yog heev txawv ntawm lub zog impurity tshem tawm orientation ntawm paj rwb.
Raws li kev ua haujlwm ua haujlwm, cov neeg ua haujlwm ua ntej tuaj yeem muab faib ua hom kev sib xyaw ua haujlwm yooj yim thiab ua haujlwm. Cov hom yooj yim tsom rau kev ntxuav thiab desizing, xws li amylase desizing agents uas tshwj xeeb cov hmoov txhuv nplej siab thiab tsim nyog rau cov paj rwb ntshiab; Thaum cov khoom sib xyaw ua haujlwm ua tau ntau yam haujlwm ib txhij, xws li paj rwb / spandex muab cov neeg ua haujlwm ua ntej uas yuav tsum tau ua kom tiav scouring, degreasing, thiab spandex tiv thaiv los ntawm compounding antioxidants thiab pH buffers los tiv thaiv spandex degradation nyob rau hauv muaj zog alkalis. Cov neeg sawv cev sib xyaw no muaj cov kev cai nruj sib xws, xav tau kom tsis txhob muaj kev tiv thaiv kev tiv thaiv uas tuaj yeem ua rau txo qis kev ua haujlwm.
Qhov sib txawv hauv cov txheej txheem kuj zoo li cov khoom tshwj xeeb ntawm cov neeg ua haujlwm ua ntej. Nruam ncoo-steaming txheej txheem yuav tsum tau auxiliaries kom muaj kev nkag mus sai thiab siab - kub stability; yog li ntawd, cov tshuaj prepreg feem ntau siv qis-foaming, siab-concentration formulations. Kev sib cuam tshuam ntawm kev sib tsoo thiab tshuaj dawb, ntawm qhov tod tes, yuav tsum sib npaug cov tshuaj tiv thaiv ib puag ncig thiab yooj yim yaug, yuav tsum tau tsim cov tshuaj tua kab mob thiab cov tshuaj tua kab mob kom txo tau cov kab mob. Tsis tas li ntawd, muaj qhov sib txawv tseem ceeb hauv cov ntsuas ecological: cov tshuaj ua ntej ib txwm muaj feem ntau muaj cov khoom hnyav ib puag ncig xws li phosphorus thiab APEO, thaum cov qauv ntsuab tshiab siv bio-}enzymes, phosphorus-cov tshuaj dawb chelating, thiab biodegradable surfactants. Txawm hais tias kim dua me ntsis, cov qauv no ua tau raws li kev cai ib puag ncig thiab cov khoom lag luam muaj txiaj ntsig.
Hauv cov ntsiab lus, qhov sib txawv ntawm cov khoom siv kho mob ua ntej yuav tsum muaj kev cuam tshuam rau "kev sib tw"- cov yam ntxwv fiber ntau txiav txim siab thaj chaw lub hom phiaj, cov txheej txheem txheej txheem txwv tsis pub muaj kev ua haujlwm, thiab kev xav tau ib puag ncig tsav kev tsim kho tshiab. Tsuas yog los ntawm kev xaiv cov qauv tsim nyog raws li cov khoom siv tshwj xeeb thiab cov hom phiaj tuaj yeem ua kom zoo dua qub, ua kom lub hauv paus ruaj khov rau cov txheej txheem dyeing thiab ua tiav.
