Ipuleti le-PS

I-PS plate okusho ukuthi ipuleti elaziswa ngaphambili elisetshenziswa ekuphrinteni kwe-offset. Ekuphrinteni kwe-offset, isithombe esizophrintwa sivela eshidini elimbozwe nge-aluminium, elibekwe eduze kwesilinda sokuphrinta. I-aluminium iphathwa ukuze ubuso bayo bube yi-hydrophilic (iheha amanzi), kanti i-PS plate coating ethuthukisiwe i-hydrophobic.
Ipuleti le-PS linezinhlobo ezimbili: ipuleti le-PS elihle kanye nepuleti le-PS elingalungile. Kuzo, ipuleti le-PS elihle lithatha ingxenye enkulu, esetshenziswa emisebenzini eminingi yokunyathelisa emaphakathi ukuya kwezinkulu namuhla. Ubuchwepheshe bayo bokwenza nabo bukhulile.
Ipuleti le-PS lenziwe nge-substrate kanye ne-PS plate coating, okungukuthi, isendlalelo se-photosensitive. I-substrate iningi i-aluminium base plate. Isendlalelo se-photosensitive yisendlalelo esakhiwe ngokumboza uketshezi oluthatha izithombe ku-base plate.
Izingxenye zayo eziyinhloko ziyi-photosensitizer, i-ejenti eyenza ifilimu kanye ne-ejenti eyisizayo. I-photosensitizer evame ukusetshenziswa kumapuleti e-PS e-positive iyinhlaka encibilikayo ye-diazonaphthoquinone e-photosensitive resin kuyilapho epuleti le-PS elinegethivu liyizinhlaka ezizwelayo ezisuselwa ku-azide ezingancibiliki.
I-positve PS plate inezinzuzo zesisindo esilula, ukusebenza okuzinzile, izithombe ezicacile, izendlalelo ezicebile, nekhwalithi yokuphrinta ephezulu. Ukusungulwa kanye nokusetshenziswa kwayo kuwushintsho olukhulu embonini yokunyathelisa. Njengamanje, ipuleti le-PS seliqhathaniswe nokuhlelwa kwezinhlamvu nge-elekthronikhi, ukuhlukaniswa kwemibala nge-elekthronikhi, kanye nokunyathelisa kwe-multicolor offset, osekuyisimiso esivamile sokwenza amapulangwe namuhla.