Hoʻokumu ʻia ka pepa Copperplate me ka paʻi pale, no ka mea, ʻoi aku ka nui o ka hui ʻana o ka fiber pepa uncoated o ka ʻili ʻole a me ke degere ma mua o ke anawaena o ke kiko, aia kekahi mau kiko i ke āpau ma waena o nā fibers a ʻaʻole hiki ke hoʻololi i ka ʻīnika i ke kiko. pepa, i hiki ole ke hana hou i ke kii pika ma keia mahele.ʻO ka pepa i uhi ʻia me ka pulp a laila calendered, ʻoi aku ka liʻiliʻi o ka ʻili o nā ʻāpana pepa ma mua o ke anawaena o ke kiko, ʻoi aku ka maikaʻi o ka pulp ma mua o nā fiber cellulose, no laila hiki ke hana hou ʻia ke kiko.ʻIke loa, ʻoi aku ka maikaʻi o ka paʻi pepa i uhi ʻia i uhi ʻia ma mua o ka pepa offset ʻole.
ʻO ka pepa mua o ka pepa i uhi ʻia i hana ʻia me ka pepa pepa i ʻōwili ʻia a i ʻole pepa paʻi offset, a ua hana ʻia ka pepa i uhi ʻia me ka pepa kumu kūikawā.Hoʻopili paʻa ka uhi ʻili i ka pepa kumu.Hoʻopili ʻia ka ʻili pepa me ka uhi paʻa, ʻaʻohe ʻōhū, ʻaʻohe kaha, ʻālohilohi ikaika a me ka maʻalahi.ʻOi aku ka maʻalahi o ka pepa i uhi ʻia ma mua o 600s, ʻoi aku ia ma mua o 10 mau manawa kiʻekiʻe ma mua o ka pepa offset.ʻO kēia ka mea e hiki ai i ka pepa i uhi ʻia ke pili kokoke me ka pā paʻi a paʻi pono i ke kiko.ʻO ka pH waiwai o ka pepa i uhi ʻia ma kahi o 7, ʻaʻohe hopena maikaʻi ʻole i ka hopena wai lithographic a ʻaʻohe hopena ʻino i ke kaʻina hoʻomaloʻo ʻīnika.I ka pepa keleawe paʻa pepa inika pili koke, maloʻo koke, a ma hope o ka maloʻo hiki no hoi hoonoho iho la i ka gloss, maikaʻi reproducibility o ka paena kikoo, ka inika mea lahilahi a me ka maopopo kiʻi, ka pūnaewele mea maʻemaʻe.ʻOi aku ka maikaʻi o ka paʻa o ka pepa i uhi ʻia ma mua o ka pepa offset, a ʻo ka paʻi ʻana ma ka pepa i uhi ʻia e hiki ke hoʻokō i nā koi o ka overprinting pololei.He kiʻekiʻe nō hoʻi ka ikaika tensile a me ka ʻili o ka pepa i uhi ʻia e pale aku i ka ikaika tensile nui i hana ʻia e ke kiʻi ʻoniʻoni ʻoniʻoni ʻoi aku ka viscous i hoʻohana ʻia.Ma muli o nā mea i luna, hoʻohana pinepine ʻia ka pepa i uhi ʻia e paʻi i nā mea paʻi kiʻekiʻe
Ka manawa hoʻouna: Jan-03-2023