Non woven bags generally use screen printing technology, also known as "screen printing", which has always been a commonly used printing process by many non-woven bag manufacturers. Generally, it is printed manually, so it is difficult to control the color in the process. Therefore, many new non-woven fabric printing methods have emerged. Here, we introduce several mainstream methods in the current market:
1, Watermark
It is named after its use of water-based elastic adhesive as a printing medium and is commonly used in textile printing, also known as printing. Mix the color paste with water-based elastic glue during printing. When developing the printing plate, chemical solvents are not used and can be directly rinsed with water. Its characteristics are good coloring power, strong covering and fastness, water resistance, and basically no odor.
2, Gravure printing
The finished product processed by this method is usually called a peritoneal non-woven bag. This process is divided into two steps: first, traditional gravure printing technology is used to print the graphics and text onto a thin film, and then the film with the printed pattern is laminated onto non-woven fabric using a laminating process. This process is commonly used for non-woven bags with large-area color pattern printing. Its characteristic is exquisite printing, the entire process is produced by machines, and the production cycle is short. 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. There are two options for thin films: glossy and matte, with matte having a matte effect! The disadvantage is that it conflicts with environmental protection concepts, as the film is difficult to degrade.
3, Heat transfer printing
Heat transfer printing belongs to special printing in printing! This method requires an intermediate medium, which is to first print the image and text onto a heat transfer film or paper, and then transfer the pattern onto non-woven fabric by heating the transfer equipment. The commonly used medium in textile printing is heat transfer film. Its advantages are: exquisite printing, rich layering, and comparable to photos. Suitable for small area color image printing. The disadvantage is that the price is high and the printing cost is high.