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BuKe factory >> Design >> 印刷工藝覆膜岀現打皺的原因

印刷工藝覆膜岀現打皺的原因

From:Buke printing factory of China | Author:China Bukeprinting factorybook0755 | Published time: 2020-10-16 | 431 Views | 🔊 Click to read aloud ❚❚ ▶ | Share:
印刷工藝覆膜岀現打皺的原因

印刷工藝覆膜岀現打皺的原因

①薄膜傳送輥不平衡。應調整傳送輥


②薄膜兩端松緊不一致或起波浪邊。應更換合格薄膜


③膠層過厚,溶劑蒸發不徹底,影響了黏度,受壓力滾筒擠壓,紙張(印刷品)與薄膜之間產生滑動。應調整塗膠量,增加烘乾道溫度。


④電熱滾筒與橡膠滾筒兩端不平,壓力不一致,線速度不等。應調整兩個滾筒。


⑤拉力不夠使薄膜走勢不均勻,會引起薄膜起皺。應調整壓力,使之正常


⑥薄膜上塗料層錶面不乾,也會引起薄膜起皺,提高烘乾溫度可解決。


⑦溫度偏高進紙時也會引起薄膜起皺。覆膜工藝中,加溫的目的是使薄膜軟化,使紙張與塑料薄膜相黏合。應採取風扇冷卻關閉電熱絲或採用其他散熱措施,盡快使溫度恢復正常

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印刷工藝覆膜岀現打皺的原因
印刷工藝覆膜岀現打皺的原因

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