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BuKePrinting >> knowledge >> 印刷廠​常用的紙張種類⑥新聞紙【步殼印刷】

印刷廠​常用的紙張種類⑥新聞紙【步殼印刷】

From:Buke printing factory of China | Author:China Bukeprinting factorybook0755 | Published time: 2022-06-14 | 58 Views | Share:
印刷廠​常用的紙張種類⑥新聞紙【步殼印刷】

印刷廠常用的紙張種類⑥新聞紙【步殼印刷】


供報紙印刷用,又稱白報紙。定量51g/m2。國外新聞紙有向低定量發展的趨勢,國產新聞紙也有49g/m2和45g/m2按品質標準分為A、B、C、D四個等級,其中A、B級適用於高速平印輪轉機印刷。新聞紙為捲筒紙,規格有781mm、787mm、1575m和1562mm。新聞紙以機械木漿為主要原料,摻少量化學木漿,大多以長網機生產。鉛印新聞紙在抄造過程中一般不施膠自20世紀80年代以後為適應平印印報的發展趨勢,對新聞紙的生產工藝進行改造,適當添加一些松香一類的膠料,以改善紙的印刷適性,這就是平印新聞紙。由於南、北紙廠所用木材不同,紙的性能也各不相同。北方紙廠大都採用楊木,紅、白松做木漿,紙質白而細膩,平滑度也好,但抗拉強度差一些;南方紙廠大多用馬尾松做木漿,紙的白度差一些,質地粗糙,平滑度也差,但抗拉強度和錶面強度要好一些。新聞紙會隨放時間長而發黃變脆,所以不宜用來印刷圖書。

印刷廠常用的紙張種類⑥新聞紙【步殼印刷】

印刷廠常用的紙張種類⑥新聞紙【步殼印刷】

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