Printing methods and characteristics of non-woven fabrics

I often see colorful shopping bags in supermarkets with different logos printed on them. What is their printing method? Most of them use screen printing 　　 process, which is what people often call “silk printing”. What are the characteristics of silk screen printing: 　　1, beautiful, yes, bright colors; 　　2, the price is high, yes, silk screen is the most expensive in all printing processes of non-woven fabrics, according to the number of colors, one color, less A dime, 　　 is more than five or six cents; 　　3, sheet packaging, slow speed, most screen printers only support sheet packaging printing, not roll printing, so the efficiency of manual screen printing is very low.　　With the continuous improvement of the market's requirements for non-woven printing products, the above-mentioned characteristics of screen printing are obviously unable to meet. Here we introduce the mainstream ones in the current market 　　: 　　1. Offset printing (gravure printing). This type of printing technology allows the pattern to be printed to be formed in a prominent manner on the rubber. The plate making process is fast, and then printed on the machine. The printing feature is no ink loss, low consumption, energy saving and fast. It is characterized by surface printing and pattern expressiveness. limited.　　 2. Copperplate printing (gravure printing). This type of printing technology allows the pattern to be printed to be formed in a concave manner on the copper and chromium. The plate-making process is slow, 　　 and then printed through the machine, which is characterized by fine printing and fast speed.　　 Three, heat transfer printing. This method is more troublesome, that is, first print the graphics on the thermal transfer film or the thermal transfer paper, and then transfer the pattern ``'' to the non-woven fabric by heating the transfer device. The commonly used medium in textile printing is thermal transfer film, which has the advantages of exquisite, layered version and comparable photos.　　 Therefore, we have seen that non-woven bags with beautiful styles are more expensive because of the high cost of this method.　　The above are all about the printing methods of non-woven fabrics, because each method is different, and the consumption cost and the time of use are different, 　　 therefore has a price difference. The better-looking, the more expensive, the simpler and monotonous, the cheaper.　　Finally, let me talk about the problem of printing pigments　　Ink. It is named after the use of water-based elastic glue as the printing medium. It is more common in textile printing and is also called printing. When printing, the color paste 　　 is mixed with water-based elastic glue. No chemical solvents are used when washing the printing plate, and it can be washed directly with water. It is characterized by good coloring power, strong covering and fastness, 　　 washing resistance, and basically no peculiar smell.　　 ink has good coloring power and strong color expression, but its environmental performance is worse than that of ink. Previous post: Environmental protection function of non-woven bags