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實際印刷生產中握潤濕液如何使用

From:Buke printing factory of China | Author:China Bukeprinting factorybook0755 | Published time: 2020-09-27 | 634 Views | Share:
在實際印刷生產中潤濕液的使用應把握以下幾條。

實際印刷生產中握潤濕液如何使用

在實際印刷生產中潤濕液的使用應把握以下幾條。

①根據不同情況掌握潤濕液的酸性。一般對於PS版來說,濕液的pH值控制在5左右(常為小於5);對於鋅皮版來說,潤濕液的pH值為4左右



②根據不同情況掌握潤濕液的用量大小。應視產品圖像情況
和墨色,以及紙張情況掌握潤濕液的用量。在能保證印刷性能良,印刷過程正常的前提下,盡可能地減少潤濕液的用量。印刷過程中,油墨中的含水量應控制在20%左右。景不雖木味墨0EE



③根據油墨和印版等相關因素,合理掌握和正確使用潤濕液。
關於潤濕液酸性的掌握,對於油墨來說,黏性較大的紅墨,含燥油較多的油墨,以及印版圖像需要加厚墨層等,一般可適當提高潤濕液的酸性,但潤濕液的酸性也應控制在允許的範圍內。潤濕液用量過大,對印刷很不利,如會引起油墨加速乳化,產品表現平淡等。

實際印刷生產中握潤濕液如何使用
實際印刷生產中握潤濕液如何使用

 

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