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BuKePrinting >> Bookprinting >> 畫冊印刷印刷廠​凹印工藝

畫冊印刷印刷廠​凹印工藝

From:Buke printing factory of China | Author:China Bukeprinting factorybook0755 | Published time: 2021-11-07 | 375 Views | Share:
直接印花是一種直接在白色織物或在已預先染色的織物上印花，後者稱做罩印。

                            畫冊印刷印刷廠凹印工藝


凹版印刷根據印花時所採用工藝的不同，可分為以下幾類：


直接印花是一種直接在白色織物或在已預先染色的織物上印花，後者稱做罩印。當然印圖案的顏色要比預染底色深得多，是主要的印花方式。


拔染印花工藝要先把織物染成單色後再進行印刷。印花色漿含有能破壞底色染料的強漂白劑，因此用這種方法能生產藍底白圓點圖案的花布。


當漂白劑與不同它發生反應的染料混合在同一色漿中時，可進行拔染印花。拔染印花織物能通過滾筒印花和篩網印花來實現，但不能通過熱轉移印花來實現。


因為與直接印花相比，拔印織物的生產成本很高，需要準確地控制使用所需的還原劑。使用這種方式印花的織物價格檔次較高。防染印花包括兩個步驟，


先是在白色織物上印上能阻止或防止染料滲透進織物的化學藥劑或蠟狀樹脂，再匹染織物。匹染織物的目的是上染底色從而襯托出白色花紋。


註意其結果與拔染印花織物的一樣，然而達到這種結果的方法卻與拔染印花相反。防染印花方法應用並不普遍，一般在底色不能拔染的情況下才會使用。


大多數防染印花是通過如手工藝或手工印花（如蠟防印花）等方法實現的。因為拔染印花和防染印花能夠產生同樣的印花效果，


所以般通過肉眼觀察常常不能鑒別。


畫冊印刷印刷廠凹印工藝

畫冊印刷印刷廠凹印工藝




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