As people’s awareness of environmental protection increases, non-woven environmentally friendly bags have gradually replaced traditional plastic bags due to their environmentally friendly characteristics such as reusability and degradability, and have become common shopping bags in daily life. In the production process of non-woven environmentally friendly bags, the printing link is particularly important. It not only increases the beauty of the bag, but also plays a role in publicity and promotion. So, what should we pay attention to when printing non-woven environmentally friendly bags?
Choose the right printing process
There are many printing processes for non-woven environmentally friendly bags fabric , such as screen printing, thermal transfer, digital printing, etc. When choosing a printing process, comprehensive consideration should be given to the material, thickness, color and printing effect requirements of the bag. For example, screen printing is suitable for large-area, multi-color printing, while thermal transfer is more suitable for small-area, high-precision printing.
Case: Water-based elastic paste
Generally, there are two types of printing inks for us to choose, one is water-based elastic paste and the other is ink. For example, the printing on ordinary Shandong non-woven bags is all done with water-based elastic glue. The main feature of this water-based elastic glue is that the effect after printing has a significant concave and convex feeling, and the coverage is good, it is washable, and basically has no odor. Ink is generally used for screen printing of ordinary objects, such as the surface of metal boxes, etc. The main feature of this printing process is high printing accuracy. Why do we basically use water-based elastic glue for printing on our environmentally friendly bags? This is mainly due to the following factors:
1. Unlike the surface of ordinary objects, the mesh on the surface of the fabric is relatively large. If you choose ordinary ink for printing, if its coverage is not good, that is, after printing, a lot of the base color of the fabric itself is exposed, such a printing effect will be ugly. Therefore, because of the surface properties of the fabric itself, we use water-based elastic glue.
2. Water-based elastic glue is a relatively environmentally friendly ink, and it basically has no odor. Therefore, since we are making Shandong non-woven environmentally friendly bags, of course we have to choose environmentally friendly ink.
Ensure the clarity of the printed pattern
The clarity of the printed pattern is directly related to the visual effect of the non-woven environmentally friendly bag. Therefore, during the printing process, it should be ensured that the pattern lines are smooth, the colors are full, and there is no blur. At the same time, for patterns or texts that need to be enlarged, attention should be paid to maintaining their proportions and clarity to avoid deformation or distortion.
Pay attention to the selection of printing colors
The color selection of non-woven environmentally friendly bags should follow the principles of environmental protection, simplicity, and generosity. When choosing printing colors, environmentally friendly inks should be used as much as possible to reduce pollution to the environment. At the same time, the color matching should also be coordinated with the overall style of the bag to avoid being too fancy or abrupt.
Ensure the accuracy of the printing position
The accuracy of the printing position is crucial to the overall aesthetics of the non-woven environmentally friendly bag. During the printing process, it should be ensured that the position of the pattern or text is consistent with the preset position to avoid deviation or dislocation. In addition, for patterns that require color printing, attention should be paid to the alignment and registration between the colors.
Control the printing pressure
The size of the printing pressure directly affects the printing effect. Excessive printing pressure may cause the pattern to deform or the ink to penetrate too deeply; while too little printing pressure may cause the ink to be uneven or unable to fully adhere to the bag. Therefore, during the printing process, the appropriate printing pressure should be adjusted according to the material and thickness of the bag to ensure the stability of the printing effect.
Check the printing quality
After printing, the printing quality of the non-woven environmentally friendly bag should be fully checked. The inspection content includes the clarity of the pattern, the accuracy of the color, the accuracy of the position, and the adhesion of the ink. For bags with problems, they should be reworked or processed in time to ensure that every bag shipped meets the quality requirements.
Conclusion
In summary, when printing non-woven environmentally friendly bags, you need to pay attention to many aspects, including choosing a suitable printing process, ensuring the clarity of the printed pattern, paying attention to the selection of printing colors, ensuring the accuracy of the printing position, controlling the printing pressure, and checking the printing quality. Only when these aspects are in place can we produce non-woven environmentally friendly bags that are both beautiful and environmentally friendly to meet the needs of consumers.
Dongguan Liansheng Non woven Technology Co., Ltd. was established in May 2020. It is a large-scale non-woven fabric production enterprise integrating research and development, production, and sales. It can produce various colors of PP spunbond non-woven fabrics with a width of less than 3.2 meters from 9 grams to 300 grams.
Post time: Jan-21-2025