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Do you know the printing method of non-woven bags?

by:FAST SINCERE     2020-03-22
The printing of non-woven bags can be generally divided into the following types: 1. Watermark: that is, water-based mucilage screen printing, named for its use of water-based elastic mucilage as printing medium, is more common in textile printing, also called printing. The color paste and the water-based Elastic Glue are mixed during printing. When washing the plate, no chemical solvent is used, and it can be washed directly with water. It is characterized by good tinting strength, strong covering and fastness, washable resistance, basically no odor, and is absolutely environmentally friendly printing. Second, intaglio printing: The finished product processed by this method is usually called a coated non-woven bag. This process is divided into two steps, that is, the traditional gravure printing process is used to print the picture and text onto the PP film, and then the patterned film is compounded on the non-woven fabric by the film coating process. Generally, non-woven bags printed with large-area color patterns adopt this process. It is characterized by exquisite printing, machine production in the whole process 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 both bright and Matt, and the Matt has a matte effect! Third, letterpress printing: use letterpress (Graphic part of the raised plate)Printing. Referred to as stamping. It is one of the main printing methods. The longest history. Engraving printing in the early years of the Tang Dynasty, the engraving printing technology was invented. The text or image was carved on the wooden board, and the non-graphic parts were removed to make the text and text protruding, and then the ink was applied by hand, and the paper was printed, this is the most primitive embossing method. The current letterpress printing uses rubber laser engraving, and then machine brush, printing on non-woven fabrics is particularly common, characterized by faster speed and cheaper price than silk screen printing. However, the shortcomings are also very Star, the printing ink is relatively thin, especially when printing on dark non-woven fabrics, the color is not as obvious as silk screen printing. 4. Thermal transfer printing: thermal transfer printing belongs to special printing in printing. This method requires intermediate medium, I . e. printing pictures and texts on thermal transfer film or thermal transfer paper first, and then transferring the pattern to non-woven fabric through heating of transfer printing equipment. The medium commonly used in textile printing is thermal transfer film. Its advantages are: beautifully printed, rich in layers, comparable to photos. Suitable for small area color image printing. The disadvantage is that the price is high and the printing cost is high. 5. Sublimation: sublimation transfer refers to the printing process in which dyes are transferred to non-woven fabrics through transfer paper. According to the sublimation characteristics of some disperse dyes, it is selected at 150 ~ 230 °C sublimated disperse dye, mixed with slurry'Color Ink' According to different design pattern requirements, will'Color Ink' Printed on the transfer paper, and then the transfer paper printed with the pattern is in close contact with the non-woven fabric. Under the condition of controlling a certain temperature, pressure and time, the dye is transferred from the printed paper to the fabric, after diffusion, it enters the interior of the non-woven fabric to achieve the purpose of coloring. Its characteristic is that it can be printed directly on the non-woven fabric with full color, the printing effect is exquisite, it can be compared with the offset printing on the paper, and it is absolutely environmentally friendly, but the price is relatively high, and it can only be printed on the PE non-woven fabric, generally used and exported.
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