Txheej txheem luam ntawv ceev faj
Printing Method xaiv: Txij li tus number case offset tsis zoo adhesion ntawm PVC zaj duab xis, thiab nyem luam ntawv daim hlau yog yooj yim o thiab corroded, gravure printing los yog tshuaj ntsuam luam ntawv feem ntau yog siv.
Printing Temperature Control: PVC zaj duab xis softens thiab deforms ntawm 60-70 degree, uas cuam tshuam rau kev luam ntawv raug. Thaum lub sij hawm luam ntawv, lub qhov cub kom qhuav yuav tsum tsis txhob siab tshaj 60 degree, thiab feem ntau pom zoo kom tswj nws ntawm 20-30℃. Yog tias siv lub tshuab luam ntawv gravure nrog lub qhov cub ncaj qha tshav kub kom qhuav, nws raug nquahu kom qhib tsuas yog cua tshuab ua haujlwm yam tsis muaj cua sov.
Ink Xaiv thiab siv
Siv cov inks tshwj xeeb sib xws nrog cov khoom ntawm PVC zaj duab xis los xyuas kom meej affinity thiab adhesion.
Tsis txhob siv chlorinated polypropylene composite inks uas muaj ntau cov ester thiab ketone cov kuab tshuaj, vim PVC zaj duab xis yuav o thiab yaj nyob rau hauv xws li cov kuab tshuaj.
Thaum siv polyamide deg number case, yuav tsum ceev faj kom tsis txhob muaj plasticizer tsiv teb tsaws los ntawm PVC zaj duab xis, uas tuaj yeem ua rau number case thaiv thiab zaj duab xis adhesion.
Tswj tus number case; Cov kuab tshuaj ntau dhau hauv tus cwj mem (xws li cyclohexanone) tuaj yeem ua rau lub ntsej muag zaj duab xis ua ntxhib los yog wrinkled.
Lamination thiab Post-Cov txheej txheem ua haujlwm
Lamination txheej txheem: Yog tias siv PVC nplaum zaj duab xis (lamination zaj duab xis) rau kev tiv thaiv saum npoo, cov txheej txheem tshwj xeeb yuav tsum ua raws. Muab cov txheej txheem luam tawm nrog cov nplaum nplaum thiab muab tso rau hauv lub tshuab laminating, kom ntseeg tau tias cov nplaum sab ntawm lub ntsej muag tseem ceeb.
Yam tsis muaj lamination: Kub 120-140℃(siv ntau 110-150 degree), siab 6-8 MPa, lub sijhawm 10-15 feeb. Cov kev txwv tshwj xeeb yuav tsum tau hloov kho raws li cov khoom siv tiag tiag, thiab feem ntau nws yog qhov zoo dua los ua kom qhov kub thiab txias kom zoo dua yog tias cov khoom tsis raug puas tsuaj.
Tom qab lamination, cov khoom tuaj yeem ua haujlwm ntxiv xws li txiav thiab xuas nrig ntaus.
Thaum tshav kub kub Sealing rau lub hnab: PVC zaj duab xis hnab yuav tsum tsis txhob ua tiav nrog ncaj qha - tshav kub los yog mem tes - hom sealing tshuab ncaj qha, vim qhov no yuav ua rau nto shrinkage, wrinkles, thiab tsis zoo sealing. Nws raug nquahu kom siv siab - zaus lossis ultrasonic cua sov sealing thiab txiav tshuab rau cua sov sealing.
Adhesive Treatment: Rau kev sib txuas sib txuas ntawm PVC shrink films (xws li lub raj mis ntawv), polyvinyl chloride resin kua nplaum feem ntau yog siv. Cov kua nplaum no yog tsim los ntawm kev yaj 40% -45% polyvinyl chloride resin hauv 55% -60% cyclohexanone hnyav. Thaum siv nws, tswj tus nqi ntawm cov kua nplaum siv kom tsis txhob muaj cov kuab tshuaj ntau dhau nkag mus rau hauv zaj duab xis thiab ua rau cov nplaum nplaum.