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BuKePrinting >> knowledge >> 什麽是熱敏變色印刷油墨

什麽是熱敏變色印刷油墨

From:Buke printing factory of China | Author:China Bukeprinting factorybook0755 | Published time: 2021-01-04 | 1089 Views | Share:
什麽是熱敏變色印刷油墨

什麽是熱敏變色印刷油墨

熱敏變色印刷油墨，是指在外界溫度變化的條件下顏色發生改變的油墨。

熱敏變色的原理是在加熱情況下使變色化合物發生物理變化或化學變化帶來自身的吸光性變化，這類油墨按變色所需溫度的不同，可分為手溫變色防偽油墨（溫度在3436℃之間）和高溫變色防偽油墨（溫度一般在40～60℃甚至更高）：

按變色方式，可分為可逆（單變色可逆，多變色可逆）熱敏防偽油墨和不可逆（單變色不可逆和多變色不可逆）熱敏防偽油墨。

什麽是熱敏變色印刷油墨
什麽是熱敏變色印刷油墨

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