ʻO ka ʻokoʻa ma waena o ka pepa papa keʻokeʻo a me ka pepa pahu keʻokeʻo pahu mea ʻono

ʻO ka pepa papa keʻokeʻo he ʻano pepa me kahi alo keʻokeʻo a laumania a me kahi hope hina ma ke kua.pahu kokoleka. Hoʻohana nui ʻia kēia ʻano pepa pahu no ka paʻi kala ʻaoʻao hoʻokahi e hana i nā pahu no ka hoʻopili ʻana. ʻO ka nui o ka pepa papa keʻokeʻo he 787mm * 1092mm, a i ʻole nā ​​​​kikoʻī ʻē aʻe a i ʻole ka pepa ʻōwili hiki ke hana ʻia e like me ka ʻaelike kauoha. No ka mea, ʻano like ke ʻano o ka fiber o ka pepa papa keʻokeʻo, loaʻa i ka papa o luna nā mea hoʻopihapiha a me nā ʻāpana laholio, a ua uhi ʻia ka ʻili me kahi nui o ka pena, a ua hana ʻia e ka calendering multi-roller, no laila ua paʻa ke ʻano o ka papa, a ua like ke ʻano o ka mānoanoa. ʻOi aku ka keʻokeʻo a me ka laumania o nā hihia āpau, me ka omo ʻana o ka ʻīnika like, emi ka lepo a me ka nalowale o ka lauoho ma ka ʻili, ʻoi aku ka maikaʻi o ka pepa a ʻoi aku ka maikaʻi o ka pale ʻana i ka pelu ʻana, akā ʻoi aku ka kiʻekiʻe o kona wai, ma ke ʻano maʻamau ma 10%, aia kekahi kekelē o ka maʻalahi, kahi e loaʻa ai kahi hopena i ka paʻi ʻana. ʻO ka ʻokoʻa ma waena o ka pepa papa keʻokeʻo a me ka pepa i uhi ʻia, ka pepa offset, a me ka pepa letterpress, ʻo ia ke kaumaha o ka pepa a ʻoi aku ka mānoanoa o ka pepa.pepa-makana-ʻōpala

Hana ʻia ka pepa papa keʻokeʻo me ka pulp luna a me kēlā me kēia papa o ka pulp lalo ma luna o kahi mīkini pepa multi-dryer multi-drum a i ʻole kahi mīkini papa hui ʻupena oval. Ma ke ʻano laulā, ua māhele ʻia ka pulp i ka pulp ʻili (papa ʻili), ka papa ʻelua, ka papa ʻekolu, a me ka papa ʻehā. He ʻokoʻa ka lakio fiber o kēlā me kēia papa o ka pulp pepa, a ʻo ka lakio fiber o kēlā me kēia papa o ka pulp e pili ana i ke kaʻina hana pepa. ʻOkoʻa ka maikaʻi. ʻO ka papa mua ka pulp ʻili, e pono ai ke keʻokeʻo kiʻekiʻe a me kekahi ikaika. ʻO ka maʻamau, hoʻohana ʻia ka pulp lāʻau kraft i hoʻokeʻokeʻo ʻia a i ʻole ka pulp mauʻu kemika i hoʻokeʻokeʻo ʻia a me ka pulp pepa ʻōpala lihi pepa keʻokeʻo; ʻo ka papa ʻelua ka papa lining, e hana ana ma ke ʻano he ʻili hoʻokaʻawale. Pono pū kekahi ʻano keʻokeʻo o ke kuleana o ka papa kumu a me ka papa kumu, maʻamau me 100% pulp lāʻau mechanical a i ʻole ka pulp pepa ʻōpala kala māmā; ʻo ke kolu o ka papa ka papa kumu, e hana nui ana ma ke ʻano he hoʻopiha e hoʻonui i ka mānoanoa o ka pepa a hoʻomaikaʻi i ka paʻakikī. Hoʻohana ʻia ka pulp pepa ʻōpala hui a i ʻole ka pulp mauʻu. ʻO kēia papa ka mānoanoa loa, a hoʻohana pinepine ʻia ka pepa me ke kaumaha kiʻekiʻe e kau i ka pulp i nā manawa he nui i loko o kekahi mau lua mesh; ʻO ka papa aʻe ka papa lalo, nona nā hana o ka hoʻomaikaʻi ʻana i ke ʻano o ka pepa pahu, hoʻonui i kona ikaika, a pale i ka wili ʻana. Hoʻohana ʻia ka pulp hua kiʻekiʻe a i ʻole ka pulp pepa ʻōpala maikaʻi aʻe ma ke ʻano he mea maka no ka hana pepa. ʻO ka ʻili lalo o ka pepa pahu he hina hina ka hapa nui, a hiki ke hana ʻia nā kala lalo ʻē aʻe e like me nā koi.pahu mea hoʻonani

Hoʻohana ʻia ka pepa keʻokeʻo no ka paʻi ʻana i nā kāleka ʻoihana, nā uhi, nā palapala hōʻoia, nā kono a me ka hoʻopili ʻana. He pepa pālahalaha ka pepa keʻokeʻo, a ʻo kona mau ana nui: 880mm * 1230mm, 787mm * 1032mm. Wahi a ka pae maikaʻi, ua māhele ʻia ka pepa keʻokeʻo i ʻekolu mau papa: a, B, a me C. ʻOi aku ka mānoanoa a me ka paʻa o ka pepa keʻokeʻo, me ke kaumaha kumu nui aʻe, a he ʻano kikoʻī like ʻole kona kaumaha kumu e like me 200 g / m2, 220 g / m2, 250 g / m2, 270 g / m2, 300 g / m2, 400 g / m2 a pēlā aku. ʻO ka paʻa o ka pepa keʻokeʻo ʻaʻole i emi ma mua o 0.80 g / m3, a kiʻekiʻe loa nā koi keʻokeʻo. ʻAʻole emi ka keʻokeʻo o nā papa a, B, a me C ma mua o 92.0%, 87.0%, a me 82.0%. I mea e pale aku ai i ka ʻauʻau ʻana, pono ka pepa keʻokeʻo i kahi kekelē nui aʻe, a ʻo nā kekelē nui o a, B, a me C ʻaʻole emi ma mua o 1.5mm, 1.5mm, a me 1.0mm. I mea e mālama ai i ka laumania o nā huahana pepa, pono ka pepa keʻokeʻo e mānoanoa a paʻa, me ka ʻoi aku ka paʻakikī a me ka ikaika pahū. Aia nā koi like ʻole no ka ʻoʻoleʻa o nā pepa keʻokeʻo o nā papa a me nā kaumaha like ʻole. ʻO ka nui o ke kaumaha, ʻo ke kiʻekiʻe o ke papa, a ʻo ke kiʻekiʻe o ke koi ʻoʻoleʻa. ʻO ka nui o ke koi ʻoʻoleʻa, ʻaʻole pono e emi ka ʻoʻoleʻa longitudinal maʻamau ma mua o 2.10-10.6mN•m, a ʻaʻole pono e emi ka ʻoʻoleʻa transverse ma mua o 1.06-5.30 mN•m.pahu kokoleka