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PS版圖文部分對潤濕液和油墨的吸附的影響

From:Buke printing factory of China | Author:China Bukeprinting factorybook0755 | Published time: 2020-09-14 | 427 Views | Share:
PS版圖文部分對潤濕液和油墨的吸附的影響

PS版圖文部分對潤濕液和油墨的吸附的影響


Ps版圖文部分的比錶面能,略高於油墨的比錶面能,但低於潤濕液的比錶面能。

根據熱力學第二定律,只有體系能量變小的過
程才能自發進行。

油墨在PS版上圖文部分的鋪展,可導致體系的
能量下降,是可以自發地進行的。而對於無潤濕液來說,情況正相反,潤濕液在B版圖文部分的鋪展,會導致體系能量升高,是非自發的過程。

因此,PS版的圖文部分對油墨和潤濕液的吸附,
有選擇性的,潤濕液在圖文基礎上是不潤濕的。

PS版圖文部分對潤濕液和油墨的吸附的影響
PS版圖文部分對潤濕液和油墨的吸附的影響

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