Tshooj 1: Cov Lus Txhais thiab Cov Ntsiab Lus Tseem Ceeb - Dej-Raws li PU tawv yog dab tsi?
Dej-raws li PU tawv, tseem hu ua dej-raws li polyurethane hluavtaws tawv, yog qib siab tawv tawv ua los ntawm txheej los yog impregnating ib lub hauv paus ntaub nrog ib tug polyurethane resin siv dej raws li ib tug dispersion nruab nrab (diluent). Txhawm rau kom nkag siab txog nws tus nqi, peb yuav tsum ua ntej rhuav tshem lub sijhawm:
Polyurethane (PU): Qhov no yog lub siab molecular polymer nrog kev ua haujlwm zoo heev, ua kom yooj yim, siab elasticity, thiab kev laus ua haujlwm. Nws yog cov khoom siv tseem ceeb rau cov tawv hluavtaws, thiab nws cov khoom ncaj qha txiav txim siab cov tawv nqaij, hnov, thiab ua haujlwm ntev.
Dej-raws li: Qhov no yog qhov sib txawv tseem ceeb ntawm cov txheej txheem ib txwm muaj. Nws hais txog qhov tseeb tias cov polyurethane resin tsis yaj hauv cov kuab tshuaj organic (xws li DMF, toluene, lossis butanone), tab sis nws yog qhov sib txawv hauv dej li cov khoom me me, tsim cov emulsion.
Yog li, dej-raws li PU tawv yog qhov tseem ceeb ntawm ib puag ncig tus phooj ywg cov tawv nqaij uas ua los ntawm polyurethane thev naus laus zis siv dej ua cov kuab tshuaj. Nws qhov tshwm sim thiab kev loj hlob sawv cev yog ib qho tseem ceeb thev naus laus zis mus rau pem hauv ntej rau kev lag luam tawv hauv kev teb rau lub ntiaj teb kev tiv thaiv ib puag ncig thiab kev xav tau kev noj qab haus huv thiab kev nyab xeeb.
Tshooj 2: Keeb kwm - Vim li cas dej-raws li PU tawv?
Qhov tshwm sim ntawm dej-raws li PU tawv yog tsis muaj xwm txheej; nws tau tsim los daws cov teeb meem loj uas nthuav tawm los ntawm cov tshuaj hnyav-raws li PU tawv.
1. Disadvantages of Traditional Solvent-Based PU Leather:
Ib puag ncig muaj kuab paug hnyav: Thaum lub sijhawm tsim khoom, ntau cov khoom siv hluav taws xob tsis zoo (VOCs) raug tso tawm rau hauv qhov chaw. VOCs yog qhov tseem ceeb ua ntej rau photochemical smog thiab PM2.5, ua rau muaj kev pheej hmoo loj rau ib puag ncig thiab tib neeg kev noj qab haus huv.
Kev Noj Qab Haus Huv thiab Kev Nyab Xeeb Kev Nyab Xeeb: Cov kuab tshuaj organic feem ntau yog tshuaj lom, tawg, thiab tawg. Kev cuam tshuam rau cov neeg ua haujlwm hauv lub Hoobkas mus ntev ua rau muaj kev phom sij rau kev lom, thiab cov kuab tshuaj me me tuaj yeem nyob hauv cov khoom tiav thaum lub sijhawm pib, ua rau muaj kev hem thawj rau cov neeg siv khoom.
Cov Khoom Siv Hluav Taws Xob: Cov txheej txheem raws li cov kuab tshuaj yuav tsum muaj cov cuab yeej siv rov ua dua tshiab thiab ua cov kuab tshuaj organic no, ua rau muaj zog siv zog thiab tsis muaj peev xwm ua tiav 100% rov qab, ua rau cov khoom pov tseg.
2. Txoj Cai thiab Kev Lag Luam Tsav Tsheb:
Tightening Global Environmental Regulations: Cov teb chaws thoob ntiaj teb, tshwj xeeb tshaj yog Tuam Tshoj, EU, thiab North America, tau tshaj tawm cov kev txwv tsis pub tshaj VOC emission txwv thiab ib puag ncig cov cai lij choj, yuam kev txhim kho kev lag luam.
Kev paub txog ib puag ncig ntawm cov neeg siv khoom tau nce: Ntau thiab ntau lub npe thiab cov neeg siv khoom xav txog "kev tiv thaiv ib puag ncig," "sustainability," thiab "ntsuab" yog qhov tseem ceeb hauv lawv cov kev txiav txim siab yuav khoom, ua rau muaj kev xav tau ntau ntxiv rau cov ntaub ntawv huv.
Corporate Social Responsibility (CSR) thiab Hom Duab: Siv cov ntaub ntawv tus phooj ywg ib puag ncig tau dhau los ua txoj hauv kev zoo rau cov tuam txhab kom ua tiav lawv lub luag haujlwm hauv zej zog thiab txhim kho lawv lub koob npe nrov.
Tsav los ntawm cov xwm txheej no, dej-raws li PU thev naus laus zis, uas yog qhov ua tau zoo tshaj plaws, nthuav tawm txoj hauv kev loj hlob zoo.
Tshooj 3: Cov Txheej Txheem Kev Tsim Khoom - Cov Txheej Txheem Qhov Sib txawv ntawm Cov Dej-raws li thiab Cov Khoom Siv Tawv-raws li tawv
Cov txheej txheem tsim khoom rau dej-raws li PU tawv feem ntau zoo ib yam li cov kuab tshuaj, feem ntau suav nrog cov ntaub ntawv npaj, polyurethane txheej, kho, ntxuav, ziab, thiab kho deg (embossing, printing, thiab rubbing). Qhov sib txawv tseem ceeb nyob hauv theem "txheej" thiab "kho" theem.
1. Solvent-Based Process (DMF System):
Txheej: Cov PU resin yog yaj nyob rau hauv cov organic hnyav xws li DMF (dimethylformamide) los tsim cov kua nplaum, uas yog tom qab ntawd siv rau hauv cov ntaub.
Coagulation: Cov khoom coated semi-tiav yog immersed nyob rau hauv dej-raws li coagulation da dej. Leveraging infinite miscibility ntawm DMF thiab dej, DMF sai diffuses los ntawm PU tov rau hauv dej, thaum cov dej permeates PU tov. Cov txheej txheem no ua rau PU los nag los ntawm cov tshuaj, tsim cov txheej txheem microporous cortical. DMF cov dej khib nyiab xav tau cov khoom siv hluav taws xob kim thiab rov qab los.
2. Dej raws li txheej txheem:
Txheej: Ib qho dej-raws li PU emulsion (PU particles dispersed nyob rau hauv dej) yog siv rau lub hauv paus ntaub los ntawm txoj kev xws li riam txheej los yog dipping.
Coagulation: Qhov no yog txheej txheem nyuaj. Dej-raws li emulsions tsis muaj cov kuab tshuaj xws li DMF, yog li coagulation tsis tuaj yeem ua tiav nrog dej. Tam sim no, muaj ob txoj hauv kev coagulation tseem ceeb:
Thermal coagulation: Thaum tshav kub kub thiab ziab yog siv los evaporate cov dej, ua rau cov dej-raws li PU particles yaj thiab tsim ib zaj duab xis. Txoj kev no tsim cov yeeb yaj kiab ntom ntom nrog huab cua permeability tsis zoo.
Coagulation (tshuaj coagulation): Qhov no yog tus yuam sij rau kev tsim cov tawv nqaij breathable dej. Tom qab txheej txheej, cov khoom dhau los ntawm lub da dej uas muaj cov coagulant (feem ntau yog cov tshuaj aqueous ntawm ntsev los yog organic acid). Lub coagulant destabilizes aqueous emulsion, yuam cov PU hais kom tawg, sib sau ua ke, thiab khom, uas ua rau ib tug microporous qauv zoo ib yam li cov kuab tshuaj raws li cov ntaub ntawv. Qhov no muab cov huab cua zoo thiab noo noo permeability.
Cov txheej txheem dej ua tiav tshem tawm cov kuab tshuaj organic, tshem tawm VOC emissions ntawm qhov chaw. Qhov no ua rau tag nrho qhov chaw tsim khoom muaj kev nyab xeeb dua thiab tshem tawm qhov xav tau ntawm cov txheej txheem hnyav hnyav rov qab, uas ua rau cov txheej txheem yooj yim dua thiab zoo dua ib puag ncig.
Tshooj 4: Cov yam ntxwv ua tau zoo - qhov zoo thiab qhov tsis zoo ntawm cov dej-raws li PU tawv
(I) Core Advantages:
Qhov kawg Environmental Protection:
Zero VOC Emissions: Tsis muaj tshuaj lom los yog cov kuab tshuaj lom neeg muaj kev puas tsuaj raug tso tawm thaum lub sijhawm tsim khoom, ua rau kev ua haujlwm zoo ib puag ncig.
Non-Toxic and Harmless: Cov khoom kawg tsis muaj cov kuab tshuaj seem, tsis ua rau tib neeg tawv nqaij, thiab muaj kev nyab xeeb thiab tsis muaj tshuaj lom. Nws ua raws li cov qauv nruj tshaj plaws ntawm ib puag ncig (xws li EU REACH thiab OEKO-TEX Standard 100), ua rau nws zoo tagnrho rau cov ntawv thov uas xav tau cov qauv kev noj qab haus huv siab, xws li cov khoom me me thiab me me, cov khoom siv hauv tsheb, thiab cov khoom siv hauv tsev.
Cov txheej txheem tsim khoom muaj kev nyab xeeb: tshem tawm cov kev pheej hmoo ntawm hluav taws kub, tawg, thiab kev lom neeg ua haujlwm.
Kev ua tau zoo heev:
Zoo Handfeel: Tawv ua nrog dej-raws li PU resin feem ntau muaj softer, fuller xav, ze rau cov tawv tiag.
Breathable thiab Moisture-Permeable (rau Coagulation): Cov qauv microporous tsim tso cai rau huab cua thiab noo noo dhau mus, ua rau khau, hnab, sofas, thiab lwm yam khoom siv tshuab ziab khaub ncaws thiab siv tau zoo dua, kov yeej cov khoom siv feem ntau cuam tshuam nrog tawv tawv.
High Hydrolysis Resistance: Ib qho tsis muaj zog ntawm polyurethane yog nws qhov cuam tshuam rau hydrolysis thiab degradation nyob rau hauv high-temperature thiab high humidity ib puag ncig. Dej-raws li PU tshuab feem ntau muab kev tswj xyuas zoo dua ntawm lawv cov qauv molecular, ua rau muaj kev tiv thaiv hydrolysis zoo dua piv rau cov khoom hnyav-raws li PU tawv, uas ua rau lub neej ntev dua.
Strong Adhesion: Dej-raws li resins pom zoo wettability thiab adhesion rau ntau yam substrates (non-woven, woven, thiab microfiber-based fabrics).
Txoj Cai thiab Kev Ua Lag Luam Zoo:
Yooj yim ua tau raws li kev cai hauv tsev thiab thoob ntiaj teb ib puag ncig, kom ntseeg tau tias tsis muaj kev txhawj xeeb.
Nrog rau "Green Product" daim ntawv lo, nws yooj yim dua los nrhiav kev yuav khoom ntawm cov npe khoom ntawm cov khoom lag luam siab thiab cov neeg siv khoom.
Tshooj 5: Daim Ntawv Thov Cheeb Tsam - Ib qho Kev Xaiv Zoo Tshaj Plaws hauv Eco-Friendly
Leveraging nws dual zoo ntawm ib puag ncig tus phooj ywg thiab kev ua tau zoo, dej-raws li PU tawv yog sai nkag mus rau ntau yam sectors:
Apparel thiab Khaub Ncaws: Cov khau kis las, khau xws li, khau zam, khau tawv, ris tsho hauv qab, hnab ev khoom, thiab lwm yam yog nws cov ntawv loj tshaj plaws. Breathability thiab kev nplij siab yog qhov tseem ceeb.
Cov rooj tog zaum thiab cov rooj tog zaum hauv tsev: cov rooj zaum siab kawg, rooj zaum noj mov, txaj txaj, thiab cov rooj tog zaum sab hauv. Cov ntawv thov no xav tau qib siab ntawm hydrolysis tsis kam, ua kom tsis haum, thiab kev nyab xeeb ib puag ncig.
Automotive interiors: Lub rooj zaum hauv tsheb, armrests, qhov rooj vaj huam sib luag, lub kauj log npog, thiab lwm yam. Qhov no yog lub lag luam tseem ceeb rau high-end dej-raws li PU tawv, uas yuav tsum tau ua raws li cov qauv nruj rau kev laus tiv thaiv, lub teeb tsis kam, tsis tshua muaj VOCs, thiab nplaim retardancy.
Cov Khoom Siv Hluav Taws Xob: Cov ntaub ntawv laptop, rooj plaub lub mloog pob ntseg, cov hlua smartwatch, thiab lwm yam, muab cov kev xav zoo nkauj, zoo nkauj, thiab stylish.
Luggage and Handbags: Fabrics rau ntau yam fashionable handbags, briefcases, and luggage, combining aesthetics, durability, and light weight design.
Cov khoom siv ncaws pob: ncaws pob, ntaus pob, hnab looj tes, thiab lwm yam.
Tshooj 6: Sib piv nrog lwm yam khoom siv
vs. Solvent-Based PU Leather: Raws li tau hais los saum no, cov tawv tawv dej yog qhov zoo tshaj plaws ntawm kev ua phooj ywg ib puag ncig, kev noj qab haus huv, thiab kev xav ntawm tes, tab sis nws tseem muaj chaw kom ntes tau ntawm tus nqi thiab qee qhov kev ua tau zoo. Dej-raws li tawv tawv yog qhov kev txhim kho thev naus laus zis meej.
vs. Cov tawv nqaij tiag tiag: Cov tawv tiag tiag yog cov khoom siv ntuj tsim nrog cov kev ntxhib los mos thiab ua pa zoo dua, tab sis nws kim heev, muaj qhov tsis sib xws, thiab cov txheej txheem tsim khoom (tanning) yog qias neeg. Dej-raws li PU tawv muaj qhov zoo sib xws thiab kev ua haujlwm ntawm tus nqi qis, tsis muaj kev phom sij rau tsiaj, thiab ua raws li kev coj noj coj ua zoo dua qub.
vs. PVC Artificial Leather: PVC tawv muab tus nqi qis tshaj plaws, tab sis nws muaj kev xav tsis zoo, ua tsis taus pa, tsis txias-tiv taus, thiab tej zaum yuav ua rau muaj teeb meem ib puag ncig vim muaj kev sib ntxiv ntawm plasticizers. Water-based PU tawv surpasses PVC nyob rau hauv cov nqe lus ntawm kev ua tau zoo thiab ib puag ncig tus phooj ywg.
vs. Microfiber Leather: Microfiber tawv yog cov tawv hluavtaws zoo tshaj plaws nrog kev ua tau zoo tshaj plaws rau tawv tawv. Nws feem ntau siv microfiber non-woven npuag raws li nws cov thaub qab, thiab cov txheej txheem tuaj yeem ua los ntawm cov kuab tshuaj los yog dej-raws li PU. Kev sib xyaw ua ke ntawm high-end dej-raws li PU thiab microfiber npuag sawv cev rau qhov kawg ntawm cov tshuab tawv tawv tam sim no.
Tshooj 6: Kev Txhim Kho Yav Tom Ntej
Technological Iteration thiab Performance Breakthroughs: Los ntawm kev tsim cov dej tshiab (xws li silicone-modified PU thiab acrylic-modified PU) thiab optimizing curing thev naus laus zis, cov khoom siv lub cev thiab kev ua haujlwm zoo (nplaim hluav taws xob, hluav taws xob tiv thaiv kab mob, kho tus kheej, thiab lwm yam) yuav raug txhim kho ntxiv.
Tus nqi Optimization thiab Scalability: Nrog rau qhov nrov ntawm kev siv tshuab thiab nthuav dav ntawm cov peev txheej, kev lag luam ntawm cov nplai yuav maj mam txo tus nqi tag nrho ntawm cov dej-raws li PU tawv, ua rau nws muaj kev sib tw hauv kev ua lag luam.
Kev Lag Luam Chain Integration thiab Standardization: Los ntawm resin synthesis mus rau tannery manufacturing rau hom ntawv thov, tag nrho cov kev lag luam saw yuav tsim kom muaj kev sib koom tes thiab koom tes txhawb kev tsim thiab txhim kho cov qauv kev lag luam.
Circular Economy thiab Bio-based Materials: Kev tshawb fawb thiab kev loj hlob yav tom ntej yuav tsom tsis yog rau cov txheej txheem tsim khoom xwb, tab sis kuj tseem nyob ntawm kev rov ua dua tshiab thiab biodegradability ntawm cov khoom tom qab lawv qhov kawg ntawm lub neej voj voog. Kev siv cov khoom siv bio-raws li raw khoom (xws li pob kws thiab cov roj castor) los npaj cov dej-raws li PU resins yuav yog qhov tom ntej.
Xaus
Dej-raws li PU tawv yog ntau tshaj li cov khoom siv yooj yim hloov; nws sawv cev rau txoj hauv kev tseem ceeb rau kev lag luam tawv kom hloov pauv los ntawm ib txwm muaj, muaj kuab paug siab heev, thiab lub zog siv tus qauv mus rau ntsuab, ruaj khov. Nws ua tiav qhov txiaj ntsig zoo ntawm kev ua tau zoo, tus nqi, thiab kev phooj ywg ib puag ncig, ua rau cov neeg siv khoom txaus siab rau cov khoom siv tawv zoo thaum tseem ua tiav lub luag haujlwm hauv zej zog los tiv thaiv ib puag ncig. Thaum tam sim no ntsib qee tus nqi thiab kev cov nyom, nws qhov zoo ib puag ncig zoo thiab muaj peev xwm rau daim ntawv thov ua rau nws qhov kev lag luam tsis hloov pauv. Raws li thev naus laus zis kom loj hlob thiab kev paub txog kev lag luam tob zuj zus, cov tawv PU tawv dej tau npaj los ua qhov tseem ceeb ntawm kev lag luam tawv tawv yav tom ntej, tsim kom muaj kev huv, kev nyab xeeb, thiab ntau dua "tawv" ntiaj teb.
Lub sij hawm xa tuaj: Sep-10-2025
