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廊坊印刷廠

無碳復寫單據表格印刷

無碳復寫聯單印刷

無碳復寫聯單印刷

    無碳復寫單證表格印刷常用預涂感光版(俗稱PS版)制版法。PS版利用的感光劑多是重氮或疊氮類化合物。將合成好的感光劑涂布在鋁板表面上,經烘干后即可制成感光版存放備用。依據感光劑的感光成像機理.也可以將PS版劃分為光分解型和光聚合理。

    光分解型用于制造陽圖型Ps版,常用的是鄰一重氮榮酪型,受紫外光照射后發生光分解反應,分子結構產生重排,生成不穩定的茍酮化合物,在微量水的存在下,立即變為茍按酸.蘇較酸易溶于稀堿溶液。所以利用陽圖版曬版,見光部分可在顯影時去除,露出氧化鋁親水層,制成印版的空白部分;未見光部分感光層不產生變化,不溶于稀堿溶液,仍留在版面,制成印版的圖文部分。


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