Gucapura Offset, bizwi kandiGusiba, ni bumwe mu buryo bukoreshwa cyane mu bucuruzi bwo gucapa ku isi hose, bufite agaciro kubera ubwiza bwabwo, buhoraho, hamwe n’igiciro - gukora neza ku icapiro rinini.
1. Ihame ryibanze ryakazi
Gucapura Offset bishingiye kurikwanga hagati y'amavuta n'amazi. Uburyo bwingenzi bukubiyemo gutandukanya ishusho hamwe na - amashusho ahantu hacapishijwe:
Agace k'ishusho: Hydrophobique (amavuta - gukurura) na wino - yakira. Bikozwe mumucyo - polymer yoroheje yumira kuri wino.
Ahantu - amashusho: Hydrophilique (amazi - gukurura) na wino - yica. Baravuwe kugirango bagumane firime yoroheje yo gukemura.
Inzira yohereza wino muburyo butaziguye:
Isahani yo gucapa yometseho igisubizo kibanza, gifata gusa ahantu hatari -.
Inkingi ikoreshwa ku isahani; yubahiriza gusa amashusho (kuva amazi yanga wino).
Ishusho yino yimuwe (offset) kuva ku isahani ikajyanwa kuri rubber - silinderi yoroshye, yoroshye.
Igitambaro cya reberi kanda kuri substrate (impapuro, ikarito, nibindi), yimura ishusho kubintu.
Iyimurwa ritaziguye niyo mpamvu yitwa "offset" - wino ntabwo ihura na substrate iturutse ku isahani, irinda isahani kandi ikemeza ishusho isobanutse neza.
2. Inzira zingenzi zibyara umusaruro
Isohora ryuzuye rya offset ryakazi ririmo ibyiciro 5 byingenzi:
(1) Gutegura imyiteguro
Iyi niyo ntambwe y'ifatizo kugirango tumenye neza ibyanditse:
Igishushanyo cya dosiye: Kora icapiro - dosiye ziteguye ukoresheje software nka Adobe Illustrator cyangwa InDesign. Ibisabwa byingenzi birimo gushyiraho ibara ryukuri (CMYK, ntabwo ari RGB.
Gukora amasahani: Icapiro - dosiye yiteguye isohoka kuri plaque ya digitale ukoresheje aCTP (Mudasobwa - kugeza - Isahani)imashini. CTP isimbuza firime gakondo - ishingiye ku gukora isahani, kunoza imikorere no kugabanya amakosa. Isahani noneho ishyirwa kuri silinderi yo gucapa.
(2) Kanda kuri Setup
Gupakira ibikoresho: Shyiramo amasahani yo gucapura, fata substrate (impapuro, ikarito, vinyl, nibindi), hanyuma wuzuze wino hamwe nigikoresho cyo gukemura.
Guhindura amabara & kwiyandikisha: Hindura imashini kugirango uhuze ibyapa bine bya CMYK neza (kwiyandikisha) kugirango wirinde guhuzagurika. Kora ibizamini byerekana neza - guhuza ibara ryinshi, kwemeza ibisohoka bihuye nibimenyetso.
(3) Gucapa
Imashini ikora ubudahwema, hamwe nigitambaro cya reberi yimura ishusho kuri substrate. Abakoresha bakurikirana inzira kugirango bagumane ibara nubuziranenge buhoraho, bareba inenge nka smudges, kutiyandikisha nabi, cyangwa wino.
(4) Kohereza - kanda Kurangiza
Iki cyiciro cyongerera agaciro nibikorwa kubicuruzwa byacapwe:
Inzira shingiro: Gukata, gutema, kuzinga, no guhambira (stapling, guhuza neza, kudoda indogobe).
Agaciro - yongeyeho inzira: Kumurika (glossy cyangwa matte kugirango urinde ubuso), gushushanya / gusibanganya (gukora ibishushanyo bizamuye cyangwa byasuzumwe), kashe ya kashe (wongeyeho ibyuma), hanyuma upfe - gukata (gushushanya ibicuruzwa muburyo bwihariye).
(5) Kugenzura Ubuziranenge & Gupakira
Kugenzura ibicuruzwa byarangiye kugirango ibara ryukuri, inenge zanditse, hamwe nuburinganire. Ibicuruzwa byujuje ibyangombwa bipakirwa kubitanga.