Dab tsi yog qhov hnyav-dawb pu tawv?

Dab tsi yog qhov hnyav-dawb pu tawv?

Solvent-free PU tawv yog ib puag ncig tus phooj ywg khoom tawv tawv uas txo los yog tag nrho zam kev siv cov kuab tshuaj organic hauv nws cov txheej txheem tsim khoom. Cov txheej txheem txheej txheem tawv PU (polyurethane) feem ntau siv cov kuab tshuaj organic raws li cov kuab tshuaj los yog cov khoom ntxiv, uas yuav muaj kev cuam tshuam rau ib puag ncig thiab kev noj qab haus huv. Txhawm rau txo qhov kev cuam tshuam no, cov tawv nqaij tsis muaj kuab lom PU siv cov txheej txheem tsim khoom sib txawv, xws li cov cuab yeej siv dej los yog lwm cov thev naus laus zis hauv ib puag ncig, los hloov cov tshuaj organic hnyav.

Yog li cas yog cov kuab tshuaj tsis muaj PU tawv ua?
Cia peb saib ua ntej yuav ua li cas hnyav-dawb PU tawv yog tsim:
1. Kev npaj ntaub hauv paus: Ua ntej, koj yuav tsum npaj cov ntaub hauv paus, uas tuaj yeem yog paj rwb lossis lwm yam khoom siv hluavtaws. Qhov no substrate yuav yog lub hauv paus ntawm PU tawv,
2. Txheej primer: Siv ib txheej ntawm primer rau ntawm daim ntaub. Cov substrate no feem ntau yog polyurethane (PU), uas muaj cov khoom zoo adhesion thiab hnav tsis kam.
3. Txheej txheej saum toj kawg nkaus: Tom qab cov primer qhuav, thov ib txheej ntawm kev hlub. Cov txheej no kuj yog ua los ntawm polyurethane, uas txiav txim siab qhov tsos thiab kev xav ntawm PU tawv. Qee qhov chaw ntawm qhov chaw yuav xav tau kev kho tshwj xeeb, xws li embossing, luam ntawv lossis imitation tawv kev ntxhib los mos, ua kom cov tawv nqaij zoo nkauj thiab zoo nkauj.
4. Kev ziab thiab kho: Tom qab ua tiav cov txheej txheem lub caij ntuj sov, cov tawv PU raug xa mus rau chav ziab lossis los ntawm lwm txoj kev kho, kom cov primer thiab cov txheej txheej saum npoo yog tag nrho kho thiab ua ke.
5. Kev ua tiav thiab txiav: Tom qab ua tiav cov tawv PU, cov txheej txheem tiav yuav tsum tau ua, suav nrog kev txiav rau hauv cov duab uas xav tau thiab loj kom ua tiav cov khoom tawv tawv kawg, xws li hnab, khau, thiab lwm yam. Lub ntsiab lus tseem ceeb hauv tag nrho cov txheej txheem yog siv cov kuab tshuaj tsis muaj polyurethane (PU) xim. Cov txheej txheem no tsis tso tawm cov kuab tshuaj organic lossis tso cov kuab tshuaj me me thaum lub sijhawm txheej txheej txheej txheej, yog li txo cov pa phem ib puag ncig thiab cuam tshuam rau cov neeg ua haujlwm noj qab haus huv.

Vim li cas cov kuab tshuaj tsis muaj pu tawv tau nrov dua tam sim no?
Peb txhua tus puas muaj teeb meem, thaum peb mus tom khw mus yuav lub rooj zaum lossis rooj tog zaum, pom cov rooj zaum zoo nkauj thiab cov rooj zaum tawv dawb lossis tawv rooj tog, xav yuav, tab sis kuj txhawj xeeb txog lub rooj zaum tawv dawb tsis muaj av resistant, tsis khawb resistant, tsis yooj yim los ntxuav, ntau zaus yuav tso tseg vim li no, tam sim no tsis txhob txhawj, peb tsis muaj qhov hnyav PU tawv, tuaj yeem pab koj daws qhov teeb meem no. Solvo-dawb PU tawv nrog nws cov kev tiv thaiv ib puag ncig, kev ua haujlwm siab thiab ntau yam kev ua haujlwm, tab sis kuj muaj cov yam ntxwv ntawm cov av tsis kam, khawb tsis kam thiab ntxuav yooj yim, yog li peb tuaj yeem xaiv cov solvo-dawb PU tawv ua los ntawm lub rooj zaum dawb, tsis tas yuav txhawj txog lub rooj zaum dawb tsis qias neeg, tsis txhob txhawj txog cov menyuam yaus tsis zoo ntawm lub rooj zaum nrog tus cwj mem.
Solvent-free PU tawv ua tau raws li cov kev xav tau ntawm cov neeg siv khoom niaj hnub no thiab cov tuam txhab tsim khoom rau cov khoom lag luam zoo thiab lub luag haujlwm ib puag ncig, uas ua rau nws muaj kev nyab xeeb dua thiab muaj kev nyab xeeb thiab yog li kev nyiam ntau dua hauv kev ua lag luam.