Koj siv qhov kub thiab txias (siab tshaj 100 ° C) thiab lub zog kom dye rau hauv hluavtaws fibers xws li nylon thiab polyester. Cov txheej txheem no ua tiav cov txiaj ntsig zoo.
Koj yuav tau txais superior colorfastness, qhov tob, thiab uniformity. Cov qualities no tshaj cov ntawm atmospheric dyeing.
An HTHP nylon xov paj dyeing tshuabyog tus qauv kev lag luam rau nws cov efficiency.
Ntsiab Cai
HTHP dyeing siv kub kub thiab siab rau xim hluavtaws fibers xws li polyester thiab nylon. Txoj kev no ua kom cov xim sib sib zog nqus.
HTHP dyeing txheej txheem muaj rau theem. Cov kauj ruam no suav nrog kev npaj cov xov paj, thauj khoom kom raug, ua cov xim da dej, khiav lub voj voog dyeing, yaug, thiab ziab.
Kev saib xyuas kom raug thiab kev nyab xeeb yog qhov tseem ceeb heev rau cov tshuab HTHP. Qhov no pab lub tshuab ua haujlwm zoo thiab ua rau tib neeg muaj kev nyab xeeb.
Qauv thiab muaj peev xwm
| Qauv | Muaj peev xwm ntawm lub khob hliav qab (raws li 1kg / lub khob hliav qab) Chaw nrug ntawm cov xov paj O / D165 × H165 mm | Muaj peev xwm ntawm polyester siab elastic qhob cij xov paj | Muaj peev xwm ntawm nylon siab elastic qhob cij xov paj | Main twj tso kua mis |
| QD-20 | 1 tube * 2layer = 2 cones | 1kg ua | 1.2kg ib | 0.75 kwm |
| QD-20 | 1 tube * 4layer = 4 cones | 1, 44kg | 1.8kg ib | 1.5 kwv |
| QD-25 | 1 tube * 5layer = 5 cones | 3kg ua | 4kg ua | 2.2 kwm |
| QD-40 | 3 tube * 4layer = 12 cones | 9 ,72kg | 12.15 Kg | 3 kwv |
| QD-45 | 4 tube * 5layer = 20 cones | 13.2 kg ib | 16.5kg 3 | 4 kwv |
| QD-50 | 5 tube * 7layer = 35 cones | 20kg ua | 25kg ua | 5.5 kwv |
| QD-60 | 7 tube * 7layer = 49 cones | 30kg ua | 3 6,5kg | 7,5 kwv |
| QD-75 | 12 tube * 7layer = 84 cones | 42.8kg :ua | 5 3,5kg | 11 kwv |
| QD-90 | 19 tube * 7layer = 133 cones | 6 1,6kg | 7 7,3kg | 15 kwv |
| QD-105 | 28 tube * 7layer = 196 cones | 8 6,5kg | 108.1kg ib | 22 kwv |
| QD-120 | 37 lub cev * 7layer = 259 cones | 121.1kg ib | 1 54,4kg | 22 kwv |
| QD-120 | 54 lub cev * 7layer = 378 cones | 1 71,2kg | 2 14,1kg | 37 kwv |
| QD-140 | 54 tube * 10layer = 540 cones | 240kg ua | 300 kg | 45 kwv |
| QD-152 | 61 tube * 10layer = 610 cones | 290kg ua | 3 61,6kg | 55 kwv |
| QD-170 | 77 lub cev * 10 txheej = 770 cones | 3 40,2kg | 4 25,4kg | 75 kwv |
| QD-186 | 92 tube * 10 txheej = 920 cones | 4 17,5kg | 5 22,0kg | 90 kwv |
| QD-200 | 108 yeeb nkab * 12 txheej = 1296 cones | 6 09,2kg | 7 61,6kg | 110 kwv |
HTHP Dyeing yog dab tsi?
Koj tuaj yeem xav txog HTHP (High Temperature, High Pressure) dyeing raws li cov txheej txheem tshwj xeeb rau cov hluavtaws fibers. Nws siv lub nkoj kaw, nias lub nkoj, nias lub nkoj kom ua tiav qhov txias txias rau saum dej (100 ° C lossis 212 ° F). Txoj kev no yog qhov tseem ceeb rau cov fibers xws li polyester thiab nylon. Lawv cov qauv molecular compact resists dye penetration nyob rau hauv ib txwm atmospheric tej yam kev mob. HTHP nylon xov paj dyeing tshuab tsim qhov zoo tagnrho ib puag ncig kom dye sib sib zog nqus mus rau hauv cov fibers, ua kom cov xim muaj zog thiab kav ntev.
Vim li cas Kub Kub thiab Siab Siab yog qhov tseem ceeb
Koj xav tau ob qho tib si kub thiab kub siab kom ua tau zoo dua dyeing tau. Txhua tus plays lub luag haujlwm sib txawv thiab tseem ceeb hauv cov txheej txheem. Kev kub siab quab yuam cov dye cawv los ntawm cov pob xov paj, kom txhua tus fiber ntau tau txais cov xim zoo ib yam. Nws kuj nce qhov kub ntawm cov dej, tso cai rau lub kaw lus ua haujlwm ntawm qhov kub siab yam tsis muaj kev tsim cov voids.
Lus Cim: Kev sib xyaw ntawm cov cua sov thiab lub siab yog qhov ua rau HTHP dyeing thiaj li zoo rau cov khoom siv hluavtaws.
Qhov kub thiab txias yog qhov tseem ceeb rau ntau yam:
● Fiber Swelling: Kub ntawm 120-130 ° C ua rau cov qauv molecular ntawm hluavtaws fibers qhib, los yog "swell." Qhov no tsim txoj hauv kev rau dye molecules nkag mus.
●Dye Dispersion:Lub da dej zas xim muaj cov tshuaj tshwj xeeb xws li cov tshuaj tua kab mob thiab cov tshuaj tua kab mob. Thaum tshav kub kub pab cov neeg ua hauj lwm kom cov dye particles sib npaug zos rau hauv dej.
●Dye Penetration:Lub siab nce, feem ntau mus txog 300 kPa, ua haujlwm nrog cov cua sov kom thawb cov dye dye molecules sib sib zog nqus mus rau hauv cov qauv qhib fiber ntau.
Cov Khoom Tseem Ceeb ntawm HTHP Dyeing Tshuab
Koj yuav ua haujlwm ib qho nyuaj ntawm cov khoom siv thaum siv HTHP nylon yarn dyeing tshuab. Lub nkoj loj yog kier, muaj zog, kaw lub thawv tsim los tiv thaiv kev kub ntxhov thiab siab. Sab hauv, tus neeg nqa khoom tuav cov pob xov paj. Lub twj tso kua mis muaj zog txav cov dej cawv dye los ntawm cov xov paj, thaum lub tshav kub exchanger tswj qhov kub thiab txias. Thaum kawg, chav tsev pressurization tuav lub siab xav tau thoob plaws lub voj voog dyeing.
Kev ua tiav HTHP dyeing voj voog ua tiav yuav tsum muaj qhov tseeb thiab kev nkag siab tob ntawm txhua theem. Koj tuaj yeem ua tiav cov txiaj ntsig zoo sib xws los ntawm kev ua raws li cov txheej txheem rau qib no. Txhua kauj ruam ua raws li qhov kawg, kom ntseeg tau tias cov khoom kawg ua tau raws li cov xim xim thiab ceev ceev specifications.
Kauj Ruam 1: Kev npaj xov paj thiab kev kho ua ntej
Koj txoj kev mus rau ib lub xov paj zoo meej dyed pib ntev ua ntej nws nkag mus rau hauv lub tshuab dyeing. Kev npaj kom raug yog lub hauv paus rau kev vam meej. Koj yuav tsum xyuas kom meej tias cov xov paj polyester yog huv si. Txhua cov roj, plua plav, lossis cov neeg ua haujlwm sizing los ntawm cov txheej txheem tsim khoom yuav ua raws li kev thaiv, tiv thaiv cov xim tsis sib xws.
Koj yuav tsum ntxuav cov khoom kom huv si kom tshem tawm cov impurities. Qhov kev kho ua ntej no yog qhov tseem ceeb rau kev ua kom cov xov paj muaj peev xwm nqus cov xim. Rau feem ntau polyester yarns, ntxuav nrog ib tug me me detergent nyob rau hauv dej sov yog txaus los npaj cov fibers rau cov mob hnyav ntawm cov txheej txheem HTHP. Kev hla cov kauj ruam no tuaj yeem ua rau patchy, xim tsis sib xws thiab tsis nrawm nrawm.
Kauj Ruam 2: Thauj khoom xov paj kom raug
Yuav ua li cas koj thauj cov xov paj rau hauv lub tshuab nqa ncaj qha cuam tshuam qhov kawg qhov zoo. Koj lub hom phiaj yog los tsim kom muaj qhov sib txawv ntom ntom uas tso cai rau cov dye cawv kom ntws sib npaug los ntawm txhua qhov fiber ntau. Kev thauj khoom tsis raug yog thawj qhov ua rau dyeing tsis xws luag.
Ceeb Toom: Cov pob ntim tsis raug yog ib qho ntawm cov xim tsis zoo. Ua tib zoo saib xyuas winding thiab thauj khoom kom tsis txhob raug nqi.
Koj yuav tsum zam cov pitfalls uas muaj cov loading:
● Cov pob yog mos heev:Yog tias koj cua cov xov paj xoob dhau lawm, cov dej cawv dye yuav pom txoj hauv kev tsawg kawg nkaus. Qhov no ua rau "channeling," qhov chaw dye rushes los ntawm txoj kev yooj yim thiab tawm mus rau lwm qhov chaw sib dua lossis tsis muaj xim.
●Pob ntawv nyuaj dhau:Winding cov xov paj nruj heev txwv tsis pub cawv txaus. Qhov no starves lub puab txheej ntawm pob dye, uas ua rau lub teeb los yog tag nrho undyed core.
●Qhov sib txawv tsis zoo:Siv spacers nrog cones tuaj yeem ua rau cov dej cawv dyeing tawm ntawm cov pob qij txha, cuam tshuam cov dej sib xws uas xav tau rau qib dyeing.
●Uncovered perforations:Yog tias koj siv cheeses perforated, koj yuav tsum xyuas kom cov xov paj npog tag nrho cov qhov sib npaug. Uncovered qhov tsim lwm txoj kev rau channeling.
Kauj Ruam 3: Npaj Dye Bath Liquor
Lub da dej dye yog ib qho kev daws teeb meem uas koj yuav tsum tau npaj nrog qhov tseeb. Nws muaj ntau tshaj li dej thiab xim. Koj yuav ntxiv ob peb lub koom haum kom ntseeg tau tias cov xim sib txawv kom raug thiab nkag mus rau cov fiber ntau sib npaug. Cov khoom tseem ceeb muaj xws li:
1. Disperse Dyes:Cov no yog cov tshuaj pleev xim, tshwj xeeb tsim rau hydrophobic fibers zoo li polyester.
2. Dispersing Agents:Cov tshuaj no khaws cov xim zoo nkauj los ntawm clumping ua ke (agglomerating) hauv dej. Kev cuam tshuam zoo yog qhov tseem ceeb rau kev tiv thaiv qhov chaw thiab ua kom muaj qhov ntxoov ntxoo.
3.Leveling Agents:Cov no pab cov dye migrate los ntawm cov cheeb tsam ntawm high concentration mus rau cov cheeb tsam uas tsis muaj concentration, txhawb ib tug txawm xim nyob rau hauv tag nrho cov xov paj pob.
4. pH tsis:Koj yuav tsum tuav cov xim da dej ntawm ib qho acidic pH (feem ntau 4.5-5.5) kom pom cov xim zoo nkauj.
Rau disperse dyes, koj yuav siv cov tshuaj dispersing tshwj xeeb kom muaj kev ruaj ntseg zoo colloidal nyob rau hauv qhov kub thiab txias thiab shear rog hauv lub tshuab. Cov hom muaj xws li:
●Anionic Surfactants:Cov khoom zoo li sulfonates feem ntau siv rau lawv cov txiaj ntsig hauv polyester dyeing.
●Tsis-ionic Surfactants:Cov no muaj nuj nqis rau lawv kev sib raug zoo nrog lwm cov tshuaj hauv da dej.
●Polymeric Dispersants:Cov no yog high-molecular-yuag compounds stabilize complex dye systems thiab inhibit particle aggregation.
Kauj Ruam 4: Ua raws li Dyeing Cycle
Nrog rau cov xov paj loaded thiab dye da dej npaj, koj npaj txhij pib qhov kev tshwm sim tseem ceeb. Lub voj voog dyeing yog ua tib zoo tswj qhov kub, siab, thiab lub sijhawm. Lub voj voog ib txwm muaj xws li qhov kub thiab txias nce, lub sijhawm tuav ntawm qhov kub siab tshaj plaws, thiab lub sijhawm tswj kom txias.
Koj yuav tsum ua tib zoo tswj tus nqi ntawm qhov kub thiab txias kom ntseeg tau tias qib dyeing. Qhov zoo tagnrho tus nqi nyob ntawm ntau yam:
●Shade Qhov tob:Koj tuaj yeem siv cov cua kub nrawm dua rau qhov ntxoov ntxoo tsaus, tab sis koj yuav tsum ua kom nws qis dua rau cov ntxoov ntxoo kom tiv thaiv kom tsis txhob muaj qhov tsis sib xws.
●Dye Properties:Dyes nrog zoo leveling zog tso cai rau ib tug sai ramp-up.
●Cawv Cwj Pwm:Kev siv twj tso kua mis zoo tso cai rau kom muaj cua sov sai dua.
Ib lub tswv yim sib txawv yog qhov sib txawv ntawm tus nqi. Piv txwv li, koj tuaj yeem ua kom sov sai sai rau 85 ° C, qeeb tus nqi mus rau 1-1.5 ° C / min ntawm 85 ° C thiab 110 ° C qhov twg dye absorption accelerates, thiab tom qab ntawd nce ntxiv mus txog qhov kawg dyeing kub.
Tus qauv dyeing profile rau polyester yuav zoo li no:
| Parameter | Tus nqi |
|---|---|
| Thaum kawg kub | 130-135 ° C |
| Siab | Txog li 3.0 kg / cm² |
| Dyeing Sijhawm | 30-60 feeb |
Thaum lub sij hawm tuav ntawm qhov kub siab tshaj plaws (piv txwv li, 130 ° C), cov dye molecules nkag mus thiab kho lawv tus kheej hauv cov o polyester fibers.
Kauj Ruam 5: Tom qab Dyeing Rinsing thiab Neutralization
Thaum lub voj voog dyeing tiav, koj tsis tas. Koj yuav tsum tshem tawm cov xim tsis muaj xim los ntawm qhov chaw ntawm cov fibers. Cov kauj ruam no, hu ua txo kev tshem tawm, yog qhov tseem ceeb rau kev ua tiav cov xim zoo nkauj thiab ci ntsa iab, ntxoov ntxoo.
Lub hom phiaj tseem ceeb ntawm kev txo qhov kev tshem tawm yog tshem tawm cov khoom seem ntawm cov xim uas tuaj yeem los ntshav lossis rub tawm tom qab. Cov txheej txheem no feem ntau suav nrog kev kho cov xov paj hauv lub da dej kom muaj zog. Koj yuav tsim cov da dej no nrog cov tshuaj xws li sodium dithionite thiab caustic soda thiab khiav ntawm 70-80 ° C rau li 20 feeb. Cov tshuaj kho mob no rhuav tshem lossis solubilizes cov xim xoob xoob, cia lawv ntxuav tau yooj yim. Tom qab txo kev tshem tawm, koj yuav ua ntau yam yaug, nrog rau qhov kawg ntawm kev ntxuav tawm, tshem tawm tag nrho cov tshuaj thiab coj cov xov paj rov qab mus rau qhov nruab nrab pH.
Kauj Ruam 6: Tshem tawm thiab ziab kawg
Cov kauj ruam kawg yog tshem tawm cov xov paj los ntawm HTHP nylon yarn dyeing tshuab thiab npaj rau siv. Tom qab unloading lub carrier, cov xov paj yog saturated nrog dej. Koj yuav tsum tshem tawm cov dej ntau dhau no kom txo tau lub sijhawm ziab thiab siv zog.
Qhov no yog ua los ntawm hydro-extraction. Koj yuav thauj cov pob xov paj mus rau spindles nyob rau hauv ib tug high-ceev centrifugal extractor. Lub tshuab no tig cov pob khoom ntawm RPMs siab heev (txog 1500 RPM), yuam dej tawm yam tsis tau deforming lub pob lossis ua rau cov xov paj puas. Niaj hnub nimno hydro extractors nrog PLC tswj tso cai rau koj xaiv qhov zoo tshaj plaws kev sib hloov ceev thiab lub sij hawm voj voog raws li hom xov paj. Kev ua tiav cov dej tsis zoo thiab tsis sib xws yog qhov tseem ceeb rau kev ua kom muaj txiaj ntsig zoo kom qhuav thiab cov khoom zoo kawg nkaus. Tom qab hydro-extraction, cov xov paj pob khoom mus rau qhov kawg ziab theem, feem ntau nyob rau hauv lub xov tooj cua zaus (RF) tshuab ziab khaub ncaws.
Koj tuaj yeem txhim kho koj cov dyeing zoo los ntawm kev paub txog kev ua haujlwm nuances ntawm HTHP nylon yarn dyeing tshuab. Kev nkag siab txog nws qhov zoo, cov teeb meem tshwm sim, thiab cov tsis tseem ceeb yuav pab koj tsim cov txiaj ntsig zoo ib yam.
Koj tau txais txiaj ntsig zoo los ntawm kev siv HTHP txoj kev. Cov tshuab niaj hnub no yog tsim los nrog cov chav da dej tsawg, txhais tau tias lawv siv dej tsawg thiab lub zog ntau dua li cov khoom siv. Qhov kev ua tau zoo no txhais ncaj qha rau hauv kev txo nqi loj.
Kev ntsuam xyuas nyiaj txiag qhia tau hais tias HTHP cov tshuab tuaj yeem ua tiav kwv yees li 47% kev txuag nyiaj hauv cov nqi ua haujlwm piv rau cov txheej txheem cua sov ib txwm muaj. Qhov no ua rau kev siv tshuab ob qho tib si zoo thiab raug nqi.
Tej zaum koj yuav ntsib ob peb yam teeb meem. Ib qho teeb meem loj yog oligomer tsim. Cov no yog cov khoom lag luam los ntawm cov khoom lag luam polyester uas tsiv mus rau cov xov paj ntawm qhov kub thiab txias, ua rau cov hmoov dawb paug.
Txhawm rau tiv thaiv qhov no, koj tuaj yeem:
● Siv cov tshuaj oligomer dispersing uas haum rau hauv koj lub da dej dye.
●Khaws lub sij hawm dyeing kom luv li sai tau.
●Ua qhov txo qis alkaline tshem tawm tom qab dyeing.
Lwm qhov kev sib tw yog ntxoov ntxoo variation ntawm batch. Koj tuaj yeem kho qhov no los ntawm kev tswj xyuas nruj nruj. Nco ntsoov xyuas kom cov khoom muaj qhov hnyav tib yam, siv tib cov txheej txheem kev pab cuam, thiab xyuas kom meej tias cov dej zoo (pH, hardness) zoo ib yam rau txhua qhov kev khiav.
Koj yuav tsum ua tib zoo tswj cov cawv sib piv, uas yog qhov piv ntawm cov dye cawv ntim rau cov xov paj hnyav. Ib qho dej cawv qis feem ntau zoo dua. Nws txhim kho cov dye exhaustion thiab txuag dej, tshuaj, thiab lub zog. Txawm li cas los xij, koj xav tau dej cawv txaus rau kev dyeing.
Qhov zoo tagnrho piv yog nyob ntawm txoj kev dyeing:
| Txoj Kev Dyeing | Hom cawv Ratio | Kev cuam tshuam tseem ceeb |
|---|---|---|
| Pob Dyeing | qis | Nce ntau lawm throughput |
| Hank Dyeing | Siab (piv txwv li, 30: 1) | Cov nqi siab dua, tab sis tsim bulkiness |
Koj lub hom phiaj yog txhawm rau nrhiav qhov zoo tshaj plaws ntws. Qhov no ua kom cov qib dyeing tsis ua rau muaj kev kub ntxhov ntau dhau uas tuaj yeem ua rau cov xov paj puas. Kev tswj kom zoo ntawm cov cawv sib piv hauv koj HTHP nylon yarn dyeing tshuab yog qhov tseem ceeb rau kev ntsuas qhov zoo thiab kev ua haujlwm.
Koj yuav tsum ua qhov tseem ceeb ntawm kev saib xyuas tsis tu ncua thiab kev ntsuas kev nyab xeeb nruj kom ntseeg tau tias koj lub tshuab HTHP ua haujlwm tau zoo thiab nyab xeeb. Kev saib xyuas zoo ib yam tiv thaiv tus nqi poob qis thiab tiv thaiv cov neeg ua haujlwm los ntawm kev phom sij ntawm kev kub siab thiab kub.
Koj yuav tsum tau kuaj xyuas txhua hnub kom koj lub tshuab ua haujlwm zoo tshaj plaws. Lub nplhaib sealing tseem ceeb tshwj xeeb tshaj yog. Koj yuav tsum xyuas kom meej tias nws muab lub foob zoo meej los tiv thaiv huab cua.
Lub foob foob tuaj yeem ua rau muaj xim sib txawv ntawm cov xim ntau, khib nyiab hluav taws xob, thiab tsim kom muaj kev nyab xeeb loj.
Koj daim ntawv txheeb xyuas txhua hnub yuav tsum suav nrog cov haujlwm tseem ceeb no:
● Ntxuav lossis hloov lub twj tso kua mis loj lub lim.
●Tshawb xyuas thiab so lub lim vaj tsev foob.
●Ntxuav lub twj tso kua mis tshuaj nrog dej huv tom qab nws siv zaum kawg.
Koj yuav tsum tau teem sijhawm saib xyuas kev tiv thaiv tsis tu ncua los daws qhov hnav thiab tsim kua muag. Sensor calibration yog ib feem tseem ceeb ntawm lub sijhawm no. Sij hawm dhau mus, cov sensors tuaj yeem poob qhov tseeb vim kev laus thiab ib puag ncig, ua rau qhov ntsuas kub tsis raug thiab siab nyeem ntawv.
Txhawm rau calibrate lub siab sensor, koj tuaj yeem sib piv nws cov kev nyeem ntawv digital rau kev ntsuas phau ntawv. Koj mam li xam qhov sib txawv, lossis "offset," thiab sau tus nqi no rau hauv lub tshuab software. Qhov kev hloov kho yooj yim no kho qhov ntsuas qhov kev nyeem ntawv, ua kom koj cov dyeing tsis nyob twj ywm thiab rov ua dua.
Koj ua haujlwm nrog cov khoom siv uas ua haujlwm nyob rau hauv cov xwm txheej tsis zoo. Nkag siab txog cov txheej txheem kev nyab xeeb yog tsis sib tham. Hmoov zoo, niaj hnub HTHP cov cav tov muaj kev ruaj ntseg zoo heev.
Cov tshuab no siv cov sensors los saib xyuas lub zog hauv lub sijhawm. Yog tias lub kaw lus pom tias muaj lub siab ntws los yog qhov tshwm sim ntau dhau, nws ua rau lub tshuab kaw tsis siv neeg. Lub kaw lus tswj tam sim ntawd nres lub tshuab ua haujlwm hauv vib nas this. Cov lus teb sai, txhim khu kev qha no yog tsim los tiv thaiv cov cuab yeej puas tsuaj thiab txo kev pheej hmoo rau koj thiab koj pab neeg.
Koj paub tus txheej txheem HTHP los ntawm kev tswj hwm txhua kauj ruam. Koj qhov kev nkag siab tob txog cov tshuab tsis zoo thiab cov tshuaj dye chemistry muab cov khoom zoo ib yam, txhawb cov xim rov qab thiab xim uniformity. Kev mob siab rau kev saib xyuas yog tsis sib tham. Nws ua kom koj lub tshuab ua haujlwm ntev, kev nyab xeeb, thiab txhim khu kev qha dyeing tshwm sim rau txhua pawg.
Dab tsi fibers koj tuaj yeem dye nrog lub tshuab HTHP?
Koj siv HTHP tshuab rau hluavtaws fibers. Polyester, nylon, thiab acrylic yuav tsum tau kub kub kom zoo dye nkag. Txoj kev no ua kom cov xim muaj zog, kav ntev ntawm cov ntaub ntawv tshwj xeeb.
Vim li cas cov cawv cawv tseem ceeb heev?
Koj yuav tsum tswj cov cawv piv rau qhov zoo thiab tus nqi. Nws cuam tshuam ncaj qha rau cov xim dyeing, kev siv dej, thiab kev siv hluav taws xob, ua rau nws yog qhov tseem ceeb rau kev tsim khoom.
Koj puas tuaj yeem dye paj rwb siv txoj kev HTHP?
Koj yuav tsum tsis txhob dye paj rwb nrog txoj kev no. Cov txheej txheem yog hnyav heev rau natural fibers. Qhov kub thiab txias tuaj yeem ua rau cov paj rwb puas, uas yuav tsum tau muaj kev sib txawv dyeing.
Post lub sij hawm: Oct-28-2025