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  • 包装印刷厂家分析印刷掉墨的原因
  • 本站编辑:杭州真彩包装制品有限公司发布日期:2020-01-28 17:11 浏览次数:

包装印刷厂家在包装盒印刷过程中,经常会出现一系列的问题,影响到包装盒印刷品的质量,如果薄膜表面未经电晕处理,或薄膜的表面张力低于油墨的表面张力,油墨就不易附着;没使用的油墨与薄膜材料特性不匹配或使用的不是专用油墨时,也会产生此类故障;而使用过期或失效油墨也不可避免地出现此类故障。另外,烘干装置(UV或红外热风干燥)功率低,致使油墨不能完全干燥或印刷墨层太厚、墨量太大、油墨粘度太大致使长时间烘干后油墨脆化,也将导致薄膜表面印刷墨层附着差,易掉墨。包装印刷厂家真彩包装为大家分析造成包装盒印刷出现印刷掉墨的4大原因:

1、 表面涂层不良薄膜类材料表面张力低,包装印刷厂家在制成包装盒之前需要进行涂层处理,涂层不良就会导致印刷掉墨。通常表现为油墨大面积脱落,尤其在胶带测试时,表面油墨会大面积被胶带粘下来。解决方案:此时需要由原材料供应商更换一批合格材料,或者印刷企业再印刷一层底涂油以增加表面张力,但会增加成本。2、 油墨与材料匹配性差包装印刷厂家由这种原因导致的掉墨通常表现为成片或零星的。解决方案:考虑到材料成本和客户需求等因素无法更换材料。可以通过油墨供应商找出与材料匹配的油墨。同时也可以采取一些辅助措施,比如提前对材料进行电晕处理等。

3、 电晕效果差薄膜材料掉墨与材料的表面能有关,表面能越强,油墨附着越牢固,反之亦然。但电晕效果会随着时间而衰减,包装印刷厂家印刷时就有可能导致掉墨。解决方案:这类现象多见于价格便宜的BOPP和PE材料,考虑到高涂层成本,多数厂家会对其进行电晕处理。遇到此种情况,应由厂家或供应商在印前重新进行电晕。4、 UV干燥不良包装盒材料大多使用UV油墨印刷,因此若干燥不完全就会导致掉墨。解决方案:这种情况表现为一到两种颜色掉墨,只需加大UV灯功率或更换UV灯管即可解决问题。

包装印刷厂家包装盒刷过程中,很容易出现面层印刷掉墨的问题,这在很大程度上影响到印刷品的质量,因此要解决印刷过程中出现印刷掉墨的问题,首先关键的一点就是要弄清造成标签印刷掉墨原因,根据具体原因选择正确的解决方法!

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包装印刷厂家在包装盒印刷过程中,经常会出现一系列的问题,影响到包装盒印刷品的质量,如果薄膜表面未经电晕处理,或薄膜的表面张力低于油墨的表面张力,油墨就不易附着;没使用的油墨与薄膜材料特性不匹配或使用的不是专用油墨时,也会产生此类故障;而使用过期或失效油墨也不可避免地出现此类故障。另外,烘干装置(UV或红外热风干燥)功率低,致使油墨不能完全干燥或印刷墨层太厚、墨量太大、油墨粘度太大致使长时间烘干后油墨脆化,也将导致薄膜表面印刷墨层附着差,易掉墨。包装印刷厂家真彩包装为大家分析造成包装盒印刷出现印刷掉墨的4大原因:

1、 表面涂层不良薄膜类材料表面张力低,包装印刷厂家在制成包装盒之前需要进行涂层处理,涂层不良就会导致印刷掉墨。通常表现为油墨大面积脱落,尤其在胶带测试时,表面油墨会大面积被胶带粘下来。解决方案:此时需要由原材料供应商更换一批合格材料,或者印刷企业再印刷一层底涂油以增加表面张力,但会增加成本。2、 油墨与材料匹配性差包装印刷厂家由这种原因导致的掉墨通常表现为成片或零星的。解决方案:考虑到材料成本和客户需求等因素无法更换材料。可以通过油墨供应商找出与材料匹配的油墨。同时也可以采取一些辅助措施,比如提前对材料进行电晕处理等。

3、 电晕效果差薄膜材料掉墨与材料的表面能有关,表面能越强,油墨附着越牢固,反之亦然。但电晕效果会随着时间而衰减,包装印刷厂家印刷时就有可能导致掉墨。解决方案:这类现象多见于价格便宜的BOPP和PE材料,考虑到高涂层成本,多数厂家会对其进行电晕处理。遇到此种情况,应由厂家或供应商在印前重新进行电晕。4、 UV干燥不良包装盒材料大多使用UV油墨印刷,因此若干燥不完全就会导致掉墨。解决方案:这种情况表现为一到两种颜色掉墨,只需加大UV灯功率或更换UV灯管即可解决问题。

包装印刷厂家包装盒刷过程中,很容易出现面层印刷掉墨的问题,这在很大程度上影响到印刷品的质量,因此要解决印刷过程中出现印刷掉墨的问题,首先关键的一点就是要弄清造成标签印刷掉墨原因,根据具体原因选择正确的解决方法!

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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