Mawu Oyamba
Kusindikiza kwa offset kwasintha kwambiri pa ntchito yosindikiza mabuku, kusinthiratu mmene timapangira mabuku, manyuzipepala, ndi zinthu zina zosindikizira. Koma kodi munayamba mwadzifunsapo kuti ndani anatulukira njira yosindikizira yodabwitsa imeneyi? M'nkhaniyi, tiwona momwe makina osindikizira a offset adayambira komanso nzeru zanzeru zomwe zidapangidwa. Tiona mwatsatanetsatane mbiri, chitukuko, ndi mphamvu ya makina osindikizira a offset, kuwunikira anthu omwe adayambitsa njira zamakono zosindikizira.
Njira Zosindikizira Zoyambirira
Tisanafufuze za kupangidwa kwa makina osindikizira a offset, ndikofunikira kumvetsetsa njira zosindikizira zoyambirira zomwe zidayambitsa njira yosinthirayi. Kusindikiza kuli ndi mbiri yakale komanso yodziwika bwino, kuyambira kumadera akale monga Mesopotamiya ndi China. Njira zakale zosindikizira, monga zosindikizira zamatabwa ndi makina osunthika, zinathandiza kwambiri pa chitukuko cha luso losindikiza.
Kusindikiza kwa matabwa, komwe kunayambika ku China wakale, kunali kuzokota zilembo kapena zifaniziro pamtengo, womwe kenaka ankakutidwa ndi inki n’kumaupanikiza papepala kapena pansalu. Njira imeneyi inali yofuna anthu ambiri ndipo inali ndi luso lochepa, koma inayala maziko a njira zosindikizira za m’tsogolo. Kupanga makina osunthika ndi Johannes Gutenberg m’zaka za m’ma 1500 kunapita patsogolo kwambiri pa luso losindikiza mabuku, chifukwa kunathandiza kuti mabuku ndi zinthu zina zosindikizidwa zizichuluka.
Kubadwa kwa Offset Printing
Kupangidwa kwa makina osindikizira a offset kutha kukhala kwa anthu awiri: Robert Barclay ndi Ira Washington Rubel. Robert Barclay, Mngelezi, akunenedwa kuti ndiye anayambitsa lingaliro la kusindikiza kwa offset mu 1875. Komabe, anali Ira Washington Rubel, wa ku America, amene anawongolera lusoli ndi kulipangitsa kukhala lochita malonda kuchiyambi kwa zaka za zana la 20.
Lingaliro la Barclay la kusindikiza kwa offset linazikidwa pa mfundo ya lithography, njira yosindikizira yomwe imagwiritsa ntchito kusagwirizana kwa mafuta ndi madzi. Mu lithography, chithunzi chomwe chiyenera kusindikizidwa chimakokedwa pamtunda, monga mwala kapena mbale yachitsulo, pogwiritsa ntchito mafuta. Madera osakhala azithunzi amachitiridwa kuti akope madzi, pomwe malo azithunzi amathamangitsa madzi ndikukopa inki. Mbaleyo ikayikidwa inki, inkiyo imamatira kumadera azithunzi ndipo imasamutsidwa ku bulangeti la rabara isanatsitsidwe papepala.
Chopereka cha Robert Barclay
Kuyesera koyambirira kwa Robert Barclay pa makina osindikizira a offset kunayala maziko opangira makinawo. Barclay anazindikira kuthekera kwa lithography ngati njira yotumizira inki ku pepala ndipo adapanga njira yogwiritsira ntchito mfundo ya kusamvana kwamafuta ndi madzi kuti apange njira yosindikizira yabwino kwambiri. Ngakhale kuyesa koyamba kwa Barclay pa kusindikiza kwa offset kunali kwachibwanabwana, kuzindikira kwake kunakhazikitsa maziko a luso lamtsogolo m'munda.
Ntchito ya Barclay yosindikiza mabuku a offset sinadziŵike kwambiri m’nthaŵi ya moyo wake, ndipo anavutika kuti avomereze malingaliro ake m’makampani osindikizira. Komabe, zopereka zake pakupanga makina osindikizira a offset sizinganenedwe, popeza zidapereka maziko omwe Ira Washington Rubel amanga.
Ira Washington Rubel's Innovation
Ira Washington Rubel, katswiri wojambula zithunzi, ndiye adatsogolera kukonzanso ndi kutchuka kwa makina osindikizira. Kupambana kwa Rubel kunachitika mu 1904 pomwe adazindikira mwangozi kuti chithunzi chomwe chimasamutsidwa ku bulangeti la rabara chikhoza kuchotsedwa papepala. Kutulukira mwangozi kumeneku kunasintha kwambiri ntchito yosindikiza mabuku ndipo kunayala maziko a njira zamakono zosindikizira za offset.
Rubel anakonza zoti asinthe mwala kapena mbale yosindikizira yachitsulo ndi bulangeti labala, zomwe zinapangitsa kuti zikhale zosavuta kusinthasintha komanso zotsika mtengo. Kupita patsogolo kumeneku kunapangitsa kuti ntchito yosindikiza ya offset ikhale yothandiza komanso yotsika mtengo, zomwe zinachititsa kuti osindikiza ambiri padziko lonse ayambe kusindikiza. Kudzipereka kwa Rubel pakukonza makina osindikizira a offset kunalimbitsa udindo wake monga mpainiya pantchito yaukadaulo yosindikiza.
Zotsatira ndi Cholowa
Kupangidwa kwa makina osindikizira a offset kunakhudza kwambiri mafakitale osindikizira, kusinthiratu mmene zosindikizira zimapangidwira ndi kufalitsidwa. Ubwino wa makina osindikizira a offset, monga kutulutsa kwapamwamba kwambiri, kuwononga ndalama zambiri, ndi kusinthasintha, kunapangitsa kuti ikhale njira yosindikizira yabwino pa chilichonse, kuyambira m'mabuku ndi m'manyuzipepala mpaka kulongedza katundu ndi malonda. Kutha kwa makina osindikizira a offset kuti azisindikiza zilembo zazikulu kumayenda bwino ndipo nthawi zonse kumapangitsa kukhala chida chofunikira kwambiri kwa osindikiza, otsatsa, ndi mabizinesi.
Komanso, cholowa chosindikizira cha offset chikukhalabe m'zaka za digito, monga mfundo ndi njira zomwe Barclay ndi Rubel amapangira zikupitirizabe kukhudza luso lamakono losindikiza. Ngakhale kusindikiza kwa digito kwatulukira ngati njira yotheka yosindikizira muzinthu zina, mfundo zazikuluzikulu za kusindikiza kwa offset zimakhalabe zofunikira komanso zothandiza.
Mapeto
Kupangidwa kwa makina osindikizira a offset ndi Robert Barclay ndi Ira Washington Rubel akuimira nthawi yowonongeka m'mbiri ya luso losindikiza. Masomphenya awo, luso lawo, ndi khama lawo zinayala maziko a njira yosindikizira yomwe ingasinthe makampani ndi kusiya mbiri yosatha. Kuchokera ku chiyambi chake chonyozeka kufika pa kugwiritsiridwa ntchito kofala, makina osindikizira a offset asintha mmene timapangira ndi kugwiritsira ntchito zosindikizira, kuumba dziko lonse la zosindikizira, kulankhulana, ndi malonda. Pamene tikuyang'ana tsogolo la umisiri wosindikizira, tingathe kutsata chisinthiko chake kubwerera kwa anthu anzeru amene anatulukira makina osindikizira a offset.
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