Kuj hu ua bopp kab xev, ntim daim kab xev, thiab lwm yam., Nws yog raws li BOPP tus kheej biodially oriented polypropylene zaj duab xis ua rau lub substrate, tom qab cua sov tusyees coated nrog siab-rhiab nplaum emulsion, tsim 8μm --- 28μm ntau ntawm txheej nplaum, Nws yog ib qho tseem ceeb ntawm cov khoom lag luam, cov tuam txhab, thiab cov tib neeg. Lub xeev tsis muaj tus qauv zoo rau kev lag luam. Tsuas yog ib qho kev lag luam, "QB / T 2422-1998 BOPP siab tawv ua daim kab xev rau sealing," txo nws hwj thawj BOPP. Tom qab zaj yeeb yaj kiab raug rau kev kho siab khov kho, qhov saum npoo ntawm zaj duab xis yog roughened. Tom qab cov kua nplaum ntim rau saum npoo, ib leej niam yob tsim thawj zaug, thiab tom qab ntawd ces daim yuag zom zom zaws rau hauv me me. Qhov no yog daim kab xev uas peb siv txhua hnub. Kev kub hnyav emulsion-sensitive, lub ntsiab tivthaiv yog butyl ester.
Kuj hu ua bopp kab xev, ntim daim kab xev, thiab lwm yam., Nws yog raws li BOPP cov yeeb yaj duab ntsej pleev ua ib qho zoo li lub substrate, tom qab cua kub npau npau npog nrog emulsion siab, ua 8μm --- 28μm ntawm cov txheej nplaum, Forming BOPP xev ntim, yog lub lag luam muaj kev lag luam, pej xeem
Lub tuam txhab, tus kheej cov khoom siv rau hauv lub neej, lub teb chaws tsis muaj ib tus qauv zoo rau kev lag luam kev lag luam, tsuas yog ib qho kev lag luam kev standard sealing BOPP siab tawv nplaum daim kab xev
Tom qab kev kho lub siab khov kho ntawm BOPP zaj duab xis, qhov saum npoo ntawm zaj duab xis yog roughened. Tom qab lub kua nplaum yog ua ntawv thov rau zaj duab xis, daim kab xev yob yog tsim ua ntej. Cov hlais hlais yog khau rau hauv me me. Qhov no yog qhov peb siv txhua hnub. Xev pem. Kev kub hnyav emulsion-sensitive, lub ntsiab tivthaiv yog butyl ester.
