Xyoo 1928 hauv St. Paul, Minnesota, Richard Drew tau tsim daim kab xev Scotch. Daim kab xev tuaj yeem faib ua daim kab xev kub siab, daim kab xev ob sab, daim kab xev rwb thaiv tsev, daim kab xev tshwj xeeb, daim kab xev rhiab siab, thiab daim kab xev txiav tuag raws li nws txoj haujlwm. Cov haujlwm sib txawv yog tsim rau cov kev xav tau sib txawv ntawm kev lag luam. Qhov saum npoo ntawm daim kab xev yog coated nrog ib txheej ntawm cov nplaum kom daim kab xev lo rau ntawm qhov khoom. Cov nplaum thaum ntxov tshaj plaws los ntawm cov tsiaj thiab cov nroj tsuag. Hauv xyoo pua kaum cuaj, roj hmab yog cov khoom tseem ceeb ntawm cov nplaum; nyob rau lub sijhawm niaj hnub no, ntau yam polymers tau siv dav.
1. Lub hauv paus ntsiab lus ntawm kev siv daim kab xev
Daim kab xev nplaum yog tsim los ntawm ob ntu: cov khoom siv hauv qab thiab cov nplaum, uas txuas ob lossis ntau yam khoom sib cais los ntawm kev sib txuas. Nws qhov chaw yog coated nrog ib txheej ntawm cov nplaum. Cov nplaum thaum ntxov tshaj plaws los ntawm cov tsiaj thiab cov nroj tsuag. Nyob rau hauv lub xyoo pua kaum cuaj, roj hmab yog cov khoom tseem ceeb ntawm cov nplaum; nyob rau hauv lub sijhawm niaj hnub no, ntau yam polymers tau siv dav. Cov nplaum tuaj yeem lo rau cov khoom vim tias lawv cov molecules tsim cov kev sib txuas nrog cov molecules ntawm cov khoom yuav tsum tau txuas, thiab qhov kev sib txuas no tuaj yeem khi cov molecules ua ke. Cov khoom sib xyaw ntawm cov nplaum, raws li ntau hom, thiab ntau hom, muaj ntau yam polymers.
2. Kev faib tawm ntawm cov kab xev
Cov khoom siv hauv paus: tuaj yeem muab faib ua daim kab xev BOPP, daim kab xev ntaub, daim kab xev ntawv kraft, daim kab xev masking, daim kab xev fiber, daim kab xev PVC, daim kab xev PE ua npuas ncauj, thiab lwm yam.
Raws li qhov ntau thiab tsawg ntawm daim ntawv thov: nws muaj peev xwm muab faib ua daim kab xev ceeb toom, daim kab xev ntaub pua plag, daim kab xev hluav taws xob, daim kab xev tiv thaiv ntawv, daim kab xev qhwv, daim kab xev sealing, daim kab xev module, thiab lwm yam.
Tus nqi nkag mus rau hauv kev ua lag luam: tuaj yeem muab faib ua daim kab xev ib txwm thiab daim kab xev tshwj xeeb.
Raws li qhov kub thiab txias ntawm daim ntawv thov: tuaj yeem muab faib ua daim kab xev kub qis, daim kab xev kub ib txwm, thiab daim kab xev kub siab.
Raws li qhov nplaum: daim kab xev ib sab thiab daim kab xev ob sab.
3. Cov lus qhia ntawm daim kab xev
(1) Lub Jumbo Roll master yob, uas yog, daim kab xev prototype rau thiab tawm ntawm lub tshuab, muaj qhov dav ntawm 1 'meter' txog 1.5 'meter', thiab ntev ntawm ntau pua 'meter' txog ntau mais, nyob ntawm cov khoom sib txawv.
(2) Log Roll yog cov khoom tom qab rewinding ntawm niam txiv yob, qhov dav tsis hloov pauv, thiab qhov ntev sib txawv raws li qhov yuav tsum tau ua (feem ntau yog 100 meters, 50 meters, 25 meters, 10 meters, 5 meters, thiab lwm yam).
(3) Slit Roll (yob tiav lawm) yog ib yam khoom hauv khw feem ntau.
Lub sijhawm tshaj tawm: Cuaj hlis-24-2022