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不干胶标签彩印,材质外型质量检测不可忽视

来源:http://www.njhxsfs.com/ 日期:2019-05-13 发布人:admin   以便尽量地防止由不干胶材料自身的质量事故造成的不干胶标签彩印故章,在彩印挤压成型前,必须先向不干胶材料的外型品质开展用心查验,便于在彩印前就能及时处理将会造成彩印挤压成型质量事故的缺点。
  In order to prevent as much as possible from the quality accidents caused by the self-adhesive material itself, the color stamp of the self-adhesive label must be carefully checked before the extrusion forming of the color printing, so that the defects that will cause the quality accidents of the extrusion forming of the color printing can be dealt with in time before the color printing.
  1、检查不干胶材料是否有毛边
  1. Check whether the adhesive material has fur edges.
  滚筒不干胶材料边沿光滑、无毁坏,是保证不干胶标签彩印品质的基本,因此,彩印挤压成型前必须要认真仔细滚筒不干胶材料的模切边沿是不是有毛刺,是不是因贮运不善而出現了损坏,而且要将滚筒不干胶材料卷下4~5圈,细心检查其分切边缘。
  The smooth and non-destructive edge of the drum adhesive material is the basic guarantee of the quality of the color printing of the adhesive label. Therefore, before extrusion, it is necessary to carefully examine whether the die cutting edge of the drum adhesive material is burred or damaged due to poor storage and transportation. Moreover, the drum adhesive material should be rolled down 4 to 5 laps to carefully inspect its cutting edge.
  2、检查不干胶材料上是否有裂纹
  2. Check whether there are cracks in the adhesive material不干胶材料在分切时,如果分切刀具调整不合适或刀刃不够锋利,都会在不干胶材料的面纸或底纸上出现裂纹,裂纹处拉出的纤维又会被粘合剂粘住。裂纹的发生可能是连续的,也可能是随机的,可能出现在卷筒不干胶材料的一边,也可能两边都有,所以,不干胶材料上机印刷前,不定要仔细察看其底纸和面纸上是否有小的裂纹。
  If the cutting tool is not adjusted properly or the cutting edge is not sharp enough, cracks will appear on the surface paper or the base paper of the dry adhesive material, and the fibers pulled out from the cracks will be bonded by the adhesive again. Cracks may occur continuously or randomly. They may occur on one side or both sides of the drum. Therefore, it is not necessary to carefully check whether there are small cracks on the base paper and the surface paper before printing.
  然后,取一段经过上述检查的样纸,剥于底纸再次检查一下面纸和底纸上是否有裂纹,因为裂纹有时是非常小的,只有分开底纸和面纸后才能发现。值得注意的是,由于油墨和粘合剂在印刷过程中会逐渐积存到印刷机的导纸辊上,也会引起不干胶材料边缘出现裂纹。所以,即使已经开始印刷,也不能忽社上述问题。
  Then, take a sample paper which has been checked above and peel it on the bottom paper to check again whether there are cracks on the top paper and the bottom paper, because the cracks are sometimes very small and can only be found after separating the bottom paper from the top paper. It is noteworthy that the ink and adhesives will gradually accumulate on the guide roll of the printing press during the printing process, which will also cause cracks on the edge of the adhesive material. Therefore, even if printing has started, we can not ignore the above problems.
                                     不干胶防伪标签印刷制作
  3、检查不干胶材料边缘是否粘连,底纸是否漏涂硅不干胶材料边缘粘连或底纸上有部分区域漏涂硅油,在印刷加工过程中均会引起排废时面纸断裂,不能正常生产。所以,印刷前先要取一段长1米左右的不干胶材料,用手剥开,看看边缘或其它部分有无不能顺滑一致剥开的部分。通常,面纸和底纸边缘粘连都发生在整卷涂布的不干胶材料的一个分切卷上,而且一般只发生在外层7~10米处,所以,遇到分切的卷筒不干胶材料边缘有粘连,不要马上就断言整卷纸都有此毛病。
  3. Check whether the edge of the adhesive material is adherent or not, whether the bottom paper is leaked to coat the edge of the silicone adhesive material or whether some areas on the bottom paper are leaked to coat silicone oil, which will cause the surface paper to break when discharging waste in the process of printing and can not be produced normally. Therefore, before printing, we should take a piece of 1 meter long adhesive material and peel it off by hand to see if the edge or other parts can not be smoothly and uniformly peeled off. Usually, the edge adhesion of face paper and bottom paper occurs on a slitting roll of the whole coated dry adhesive material, and generally only occurs in the outer layer of 7-10 meters. Therefore, when there is adhesion on the edge of the slitting drum dry adhesive material, do not immediately assert that the whole roll of paper has this problem.
  此外要注意,剥离重量轻的面纸(如60G/平方米和80G/平方米的面纸)比剥离重量重的面纸所用的力要大,面纸越轻,剥离时手感越紧。也正因为如此,有时按客户所要求的形状去模切客户所选择的不干胶材料时,无法在常规印刷速度下完成。
  In addition, it should be noted that the paper with lighter weight (such as 60G/m2 and 80G/m2) is more powerful than the paper with heavier weight. The lighter the paper, the tighter the handle is. It is also because of this, sometimes according to the shape required by customers to die the customer's choice of adhesive materials, can not be completed at the conventional printing speed.
  4、检查卷筒不干胶材料分切端面是否平直、复卷松紧是否一致如果卷筒不干胶材料的分切端面不齐,不仅会影响印刷时的套准,而且会因模切位置发生变化而发生排废困难;复卷时松紧不一致则会引起印刷时纸张力的变化,张力不均同样会造成印刷质量问题。
  4. Check whether the slitting end surface of drum adhesive material is straight or not, and whether the rewinding tightness is uniform. If the slitting end surface of drum adhesive material is not uniform, it will not only affect the alignment of printing, but also cause discarding difficulties due to the change of die-cutting position. When rewinding, inconsistent tightness will cause the change of paper force in printing, and uneven tension will also cause printing quality problems.
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