Non-woven bags are generally screen-printed, which is often referred to as "silk screen printing." This has also been a common printing process used by many non-woven bags manufacturers. Generally, they are printed manually, so the color of the process is not easy to control, so many new non-woven printing methods have emerged. Here we introduce several mainstream ones on the market:
1. Watermark
Got its name because it uses water-based elastic glue as printing medium, which is more common in textile printing, also called printing. Mix color paste and water-based elastic rubber during printing. No chemical solvent is needed when washing the printing plate, it can be washed directly with water. It is characterized by good coloring power, strong hiding power and fastness, washing resistance, and basically no odor.
Second, gravure printing
The finished product processed by this method is usually called peritoneal non-woven bag. This process is divided into two steps, that is, the traditional gravure printing process is used to print the graphics on the film, and then the laminating process is used to compound the printed film on the non-woven fabric. Generally, nonwoven bags printed with large-area color patterns adopt this process. It is characterized by exquisite printing, machine production throughout, and short production cycle. In addition, the product has excellent waterproof performance, and the durability of the finished product is better than that of non-woven bags produced by other processes. The film is available in two options: bright and matt. Matte has a matte effect! The disadvantage is that it conflicts with the concept of environmental protection, because the film is difficult to degrade.
Third, thermal transfer
Thermal transfer is a special printing in printing! This method requires an intermediate medium, that is, first print the image on the thermal transfer film or thermal transfer paper, and then transfer the pattern to the nonwoven fabric by heating the transfer device. The media commonly used in textile printing is thermal transfer film. Its advantages are: beautifully printed, rich layered version, comparable to photos. Suitable for small area color image printing. The disadvantage is the high price and high printing cost.