PS mbale

Tanthauzo la mbale ya PS ndi mbale yodziwitsidwa kale yomwe imagwiritsidwa ntchito posindikiza. Pakusindikiza kwa offset, chithunzi chomwe chiyenera kusindikizidwa chimachokera ku pepala lophimbidwa ndi aluminiyamu, loyikidwa mozungulira silinda yosindikizira. Aluminiyamu amathandizidwa kuti pamwamba pake ndi hydrophilic (amakopa madzi), pomwe zokutira za PS zomwe zidapangidwa ndi hydrophobic.
PS mbale ili ndi mitundu iwiri: mbale yabwino ya PS ndi mbale ya PS yoyipa. Mwa iwo, mbale zabwino za PS ndizomwe zimagawana zambiri, zomwe zimagwiritsidwa ntchito m'ntchito zambiri zosindikizira zapakati mpaka zazikulu masiku ano. Ukadaulo wake wopanga nawonso umakhwima.
Mbale ya PS imapangidwa ndi gawo lapansi ndi zokutira za PS, ndiye kuti, wosanjikiza zithunzi. Gawo laling'ono nthawi zambiri limapangidwa ndi aluminiyamu. The photosensitive wosanjikiza ndi wosanjikiza wopangidwa ndi kupaka photosensitive madzi pa maziko mbale.
Zigawo zake zazikulu ndi photosensitizer, film-forming agent ndi wothandizira. The photosensitizer yomwe imagwiritsidwa ntchito m'mbale zabwino za PS ndi sungunuka wa diazonaphthoquinone wamtundu wa photosensitive resin pomwe utomoni woyipa wa PS ndi wosasungunuka wa azide-based photosensitive resins.
Positive PS mbale ili ndi ubwino wopepuka wopepuka, magwiridwe antchito okhazikika, zithunzi zomveka bwino, zigawo zolemera, komanso kusindikiza kwapamwamba. Kupangidwa ndi kugwiritsa ntchito kwake ndikusintha kwakukulu pamakampani osindikiza. Pakalipano, mbale ya PS yagwirizanitsidwa ndi makina osindikizira amagetsi, kusiyanitsa mitundu yamagetsi, ndi kusindikiza kwa multicolor offset, komwe kwakhala njira yaikulu yopangira mapulaneti masiku ano.