Information about Paper Bag

During the printing of the Paper Bag, there may be bubbles in the ink marks. When the bubbles appear, it means that the printing effect is not good. So what is the reason for the bubbles to appear in the ink marks when the Paper Bag is printed? In addition, when the customer customizes the Square Bottom Paper Bag, the printer manufacturer will confirm many things with the customer. Among them, some very professional words are difficult to understand and distinguish, such as bronzing and gold printing. Many people cannot distinguish between the two. Today I will tell you the difference between these two words.

Here is the content list:

• How to distinguish bronzing and stamping when printing Paper Bags?

• Why do ink marks appear when the Paper Bag is printed?

How to distinguish bronzing and stamping when printing Paper Bags?

Although bronzing and stamping look golden on the surface, there are still differences in the performance of the Paper Bag. The bronzing process has a certain three-dimensional effect and gloss and has a metallic texture. The effect will be better than that of gold stamping. The bronzing process is done after printing 4 colors. For 4 colors, just make a piece for the hot stamping place to the printing master. However, the disadvantage is that the poor production process will cause it to fall off easily.

Gold printing mainly relies on ink to make a specific golden color and is printed by a printing machine. It is easy to produce a color difference, and the effect is not as good as bronze. It can be done directly on the printing machine. Of course, the price of hot stamping is higher than that of printing gold, because the operation is more complicated. I believe that through the above description, you should now be able to easily understand the difference between bronzing and gold stamping. Although bronzing looks more textured, it is recommended that customers make choices according to their own needs and costs when customizing the Paper Bag, to be more secure.

Why do ink marks appear when the Paper Bag is printed?

If there are bubbles on the ink marks when the Paper Bag is printed, it depends on the severity of the problem. If the situation is not serious, it will only affect the effect of the produced product. If it is serious, it may lead to the failure of the printing. For the consideration of cost and finished product, we should find out the reason for the bubbles in the ink marks, so that we can find a corresponding solution.

First, there is dust or oil on the surface of the Kraft Paper Bag. Due to the presence of dust or oil stains on the Paper Bag itself during printing, air bubbles are generated. Because the oil molecules and the printed ink repel each other, it will cause no coloring, so air bubbles will naturally appear on the surface of the Kraft Paper Bag. Second, the ink itself has a high concentration. Because of the high concentration of the ink itself, the bubbles cannot be squeezed out, so the custom-made paper bag printed in this way will naturally have this problem. This is because the concentration of the ink is too high, and it is easy to form bubbles inside, these bubbles will make When the ink is printed on the customized printing surface of the shopping Paper Bag, a vacuum will be formed, which will greatly affect the printing effect. Third, the ink viscosity is high. Due to the high viscosity of the ink and the large surface tension of the ink, it is difficult for the gasoline in the ink to escape from the ink film and stay in the ink layer. If the ink viscosity is low and the ink surface tension is small, the bubbles will disappear on their own, so there will be no Paper. Bag ink bubbling phenomenon. The above points are the reasons for the bubbles in the ink marks when the Paper Bag is printed. We find the corresponding solutions for the above reasons, to avoid the problem.

For more Paper Bag-related questions, please contact us. Years of accumulated R&D and production experience, to provide you with more product services and technical support! Our official website is https://www.welmpackaging.com/. Our company adheres to the corporate culture of "quality first, customer first", and always makes unremitting efforts to become a professional Gift Paper Bag supplier in the industry.