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BuKe factory >> Packagingbox >> 畫冊印刷公司使用膠片的種類

畫冊印刷公司使用膠片的種類

From:Buke printing factory of China | Author:China Bukeprinting factorybook0755 | Published time: 2021-01-30 | 664 Views | Share:
畫冊印刷公司使用膠片的種類

畫冊印刷公司使用膠片的種類

用於印刷的膠片,根據照排機的輸出需要,常見的有兩種軸心大小,小軸心為2.0英寸(約51mm),大軸心為2.8英寸(約71mm);按藥膜面的捲向,有內捲式和外捲式兩種,以適應不同照排機的需要

根據製版和用途的不同,膠片還有正片、負片及反轉片等種類。正片是用來印製照片、幻燈片和電影拷貝的感光膠片的總稱。它能把膠片上的負像印製為正像,使影像的明暗或色彩與被攝物體相同;負片是經曝光和顯影加工後得到的影像,其明暗與被攝體相反,其色彩則為被攝體的補色,它需經印放在照片上才還原為正像;而彩色反轉片則是一種經過反轉沖洗後直接得到彩色透明正像的膠片。

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畫冊印刷公司使用膠片的種類
畫冊印刷公司使用膠片的種類

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