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液晶油墨的配製畫冊印刷廠

From:Buke printing factory of China | Author:China Bukeprinting factorybook0755 | Published time: 2021-04-13 | 1091 Views | Share:
配製比例越高,液晶微膠的變色越靈做,顏色也越鮮艷,但印刷適性越差;

          液晶油墨的配製畫冊印刷廠

被其他物質污染,保證其呈色效果,必須把液晶包覆到微膠囊中,再與連結料混合製成微膠液晶微膠囊的制取方法與發泡微膠囊和香味微膠囊的制取方法基本相同,

但對形成的微
囊型的液晶油墨。膠囊的囊壁有不同的要求。發泡微膠囊的囊整要有隨體積膨脹而增大,且又具有不易被破壞的柔韌性;

香味微膠囊的囊壁要求在印刷時不能受壓損壞,而在使用時用指甲、鉛筆等擦壓又容易破壞,達到散發香味的目的;液晶微膠囊的囊壁要求是不僅能順利地通過印版,

還必在制取液晶微膠囊時應做到選用的膠囊壁殼體材料不易被腐蝕,膠囊噻要充分硬化,
須具有永久性的堅固,不易被外力損壞。

徑分佈盡量均勻一致且要求各微膠囊應獨立存在,不可黏結成塊。液品經微膠費化後,應選擇合適的合劑成樹脂作為液晶微膠囊的載體配製成油墨。

這類黏合劑或樹脂應具有一定的透明度和流動性,對液品微膠囊影響小,並使微膠囊能長期懸
浮在載體中而成一種膠體,不分層,以利於長期保存。

取乙烯肺樹脂,屬於水溶性樹脂,為提高黏附性,其聚合度宜在2000以上。聚乙烯醉常用於液品微膠青作為載體的材料有:

連結科具有透明性、光澤性好的特點,但耐久性差,機械強度低,耐水性差,印後要塗一層丙烯酸清漆保護,丙烯酸共聚物,具有較好的耐久性和機械強度,

是一種較理想的載體材料。乙烯系合物乳劑及合成橡膠系乳劑具有優異的耐久性和機械強度,但光澤性和透明性
差,會影響光學呈色效果,一般很少使用配製油墨時,

液晶微膠囊在連結料中的比例應控制在
40%-60%之間。配製比例越高,液晶微膠的變色越靈做,顏色也越鮮艷,但印刷適性越差;

反之比例越低,則液晶微膠囊的呈色效果不理想,達不到印刷的要求。

液晶油墨的配製畫冊印刷廠
液晶油墨的配製畫冊印刷廠

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