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      • 包裝印刷廠家分析印刷掉墨的原因
      • 本站編輯:杭州AG平台app包裝製品有限公司發布日期:2020-01-28 17:11 瀏覽次數:

      包裝印刷廠家在包裝盒印刷過程中,經常會出現一係列的問題,影響到包裝盒印刷品的質量,如果薄膜表麵未經電暈處理,或薄膜的表麵張力低於油墨的表麵張力,油墨就不易附著;沒使用的油墨與薄膜材料特性不匹配或使用的不是專用油墨時,也會產生此類故障;而使用過期或失效油墨也不可避免地出現此類故障。另外,烘幹裝置(UV或紅外熱風幹燥)功率低,致使油墨不能完全幹燥或印刷墨層太厚、墨量太大、油墨粘度太大致使長時間烘幹後油墨脆化,也將導致薄膜表麵印刷墨層附著差,易掉墨。包裝印刷廠家AG平台app包裝為大家分析造成包裝盒印刷出現印刷掉墨的4大原因:

      1、 表麵塗層不良薄膜類材料表麵張力低,包裝印刷廠家在製成包裝盒之前需要進行塗層處理,塗層不良就會導致印刷掉墨。通常表現為油墨大麵積脫落,尤其在膠帶測試時,表麵油墨會大麵積被膠帶粘下來。解決方案:此時需要由原材料供應商更換一批合格材料,或者印刷企業再印刷一層底塗油以增加表麵張力,但會增加成本。2、 油墨與材料匹配性差包裝印刷廠家由這種原因導致的掉墨通常表現為成片或零星的。解決方案:考慮到材料成本和客戶需求等因素無法更換材料。可以通過油墨供應商找出與材料匹配的油墨。同時也可以采取一些輔助措施,比如提前對材料進行電暈處理等。

      3、 電暈效果差薄膜材料掉墨與材料的表麵能有關,表麵能越強,油墨附著越牢固,反之亦然。但電暈效果會隨著時間而衰減,包裝印刷廠家印刷時就有可能導致掉墨。解決方案:這類現象多見於價格便宜的BOPP和PE材料,考慮到高塗層成本,多數廠家會對其進行電暈處理。遇到此種情況,應由廠家或供應商在印前重新進行電暈。4、 UV幹燥不良包裝盒材料大多使用UV油墨印刷,因此若幹燥不完全就會導致掉墨。解決方案:這種情況表現為一到兩種顏色掉墨,隻需加大UV燈功率或更換UV燈管即可解決問題。

      包裝印刷廠家包裝盒刷過程中,很容易出現麵層印刷掉墨的問題,這在很大程度上影響到印刷品的質量,因此要解決印刷過程中出現印刷掉墨的問題,首先關鍵的一點就是要弄清造成標簽印刷掉墨原因,根據具體原因選擇正確的解決方法!

      2-1Z525141646-51.jpg

      包裝印刷廠家在包裝盒印刷過程中,經常會出現一係列的問題,影響到包裝盒印刷品的質量,如果薄膜表麵未經電暈處理,或薄膜的表麵張力低於油墨的表麵張力,油墨就不易附著;沒使用的油墨與薄膜材料特性不匹配或使用的不是專用油墨時,也會產生此類故障;而使用過期或失效油墨也不可避免地出現此類故障。另外,烘幹裝置(UV或紅外熱風幹燥)功率低,致使油墨不能完全幹燥或印刷墨層太厚、墨量太大、油墨粘度太大致使長時間烘幹後油墨脆化,也將導致薄膜表麵印刷墨層附著差,易掉墨。包裝印刷廠家AG平台app包裝為大家分析造成包裝盒印刷出現印刷掉墨的4大原因:

      1、 表麵塗層不良薄膜類材料表麵張力低,包裝印刷廠家在製成包裝盒之前需要進行塗層處理,塗層不良就會導致印刷掉墨。通常表現為油墨大麵積脫落,尤其在膠帶測試時,表麵油墨會大麵積被膠帶粘下來。解決方案:此時需要由原材料供應商更換一批合格材料,或者印刷企業再印刷一層底塗油以增加表麵張力,但會增加成本。2、 油墨與材料匹配性差包裝印刷廠家由這種原因導致的掉墨通常表現為成片或零星的。解決方案:考慮到材料成本和客戶需求等因素無法更換材料。可以通過油墨供應商找出與材料匹配的油墨。同時也可以采取一些輔助措施,比如提前對材料進行電暈處理等。

      3、 電暈效果差薄膜材料掉墨與材料的表麵能有關,表麵能越強,油墨附著越牢固,反之亦然。但電暈效果會隨著時間而衰減,包裝印刷廠家印刷時就有可能導致掉墨。解決方案:這類現象多見於價格便宜的BOPP和PE材料,考慮到高塗層成本,多數廠家會對其進行電暈處理。遇到此種情況,應由廠家或供應商在印前重新進行電暈。4、 UV幹燥不良包裝盒材料大多使用UV油墨印刷,因此若幹燥不完全就會導致掉墨。解決方案:這種情況表現為一到兩種顏色掉墨,隻需加大UV燈功率或更換UV燈管即可解決問題。

      包裝印刷廠家包裝盒刷過程中,很容易出現麵層印刷掉墨的問題,這在很大程度上影響到印刷品的質量,因此要解決印刷過程中出現印刷掉墨的問題,首先關鍵的一點就是要弄清造成標簽印刷掉墨原因,根據具體原因選擇正確的解決方法!

      In the process of packaging and printing, packaging and printing manufacturers often have a series of problems, which affect the quality of packaging and printing products. If the film surface is not corona treated, or the surface tension of the film is lower than the surface tension of the ink, the ink is not easy to adhere; if the unused oil and ink do not match the characteristics of the film material or the special ink is not used, such failures will also occur ; and the use of expired or invalid inks is also inevitable such failures. In addition, due to the low power of drying device (UV or infrared hot air drying), the ink cannot be completely dried or the printing ink layer is too thick, the ink volume is too large, and the ink viscosity is too large to make the ink embrittlement after drying for a long time, which will also cause poor adhesion of the printing ink layer on the film surface and easy ink removal. The real color packaging of packaging and printing manufacturers analyzes the four reasons for ink loss in packaging box printing:

      1. Poor surface coating film material surface tension is low, packaging and printing manufacturers need coating treatment before making packaging box, poor coating will lead to printing ink. Usually, the ink falls off in a large area, especially when the tape is tested, the surface ink will be glued down in a large area by the tape. Solution: at this time, the raw material supplier needs to replace a batch of qualified materials, or the printing enterprise needs to print another layer of primer to increase the surface tension, but it will increase the cost. 2. The poor matching of ink and materials packaging printing factory caused by this reason ink loss usually appears in pieces or sporadic. Solution: material cannot be replaced considering factors such as material cost and customer demand. The ink supplier can find the ink matching the material. At the same time, some auxiliary measures can be taken, such as corona treatment of materials in advance.

      3. Corona effect poor film material ink and material surface energy, the stronger the surface energy, ink adhesion more firm, and vice versa. However, the corona effect will decline with time, which may lead to ink loss when printing by packaging and printing manufacturers. Solution: this kind of phenomenon is often seen in cheap BOPP and PE materials. Considering the high coating cost, most manufacturers will corona treat them. In this case, the manufacturer or supplier shall conduct corona again before printing. 4. UV drying poor packaging materials mostly use UV ink printing, so a number of drying incomplete will lead to ink loss. Solution: this situation is represented by one or two colors of ink, just increase the power of UV lamp or replace the UV lamp to solve the problem.

      In the process of packaging and printing, it is easy for packaging and printing manufacturers to have ink loss in surface printing, which greatly affects the quality of printed products. Therefore, to solve the problem of ink loss in printing, the first key point is to find out the cause of ink loss in label printing, and choose the right solution according to the specific reason!

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