Non-woven bags of classified by printing process A, screen printing non-woven bags Printing non-woven bag, that is, through the silk screen printing process printing design is made of non-woven bag. Screen printing non-woven bag printing steps: 1, silk edition; , version 2 (the silk screen version loaded on the silk screen printing equipment); 3, green ink color; 4, printing debugging (only one or a few, debugging substrates location). 5 positioning; 6, batch printing production. Screen printing net printing non-woven bags of limitations 1, a single color, unable to printing color. 2, in combination of color chromaticity difficulty coefficient; 3, screen printing non-woven bag use environmental protection ink is ink drying speed is slow, printing speed slower. Screen printing non-woven bag 1, plate-making cost is low, to do small batch production, non-woven bag cost is low. 2, screen printing non-woven bags Ink layer thick, strong coverage, have stereo feeling. Second, flexo non-woven bags Flexo printing non-woven bags, namely, the printing way flexo printing production of non-woven bags. Flexo flexo printing, is to use a raised flexible way of graphic print of a direct printing. Used for non-woven bags and soft plate material for rubber board commonly. Flexo printing non-woven bag steps 1, stick the rubber plate fixed on the plate cylinder; 2, the ink pour ink shell, by metal sculpture and ink roller; 3, print money, will ink transferred to the rubber roller version on transferred to non-woven fabrics. Flexo printing non-woven bag artwork design requirements 1 lines and colors in the color and pattern design is preferred; . 2, meticulous line flexo difficult to achieve, when the design should be avoided; 3, a combination pattern design should avoid color; 4, the design of printing color big contrast with the cloth color as far as possible; 5, flexo ink forme is thinner, the domestic flexo machine difficult to print the white and yellow. Flexo printing non-woven bags of advantages and disadvantages Advantage: 1, flexo flexibility, economy, and to protect the environment is very good; 2, flexo printing speed, low cost; Disadvantage: flexo ink layer thin coverage is poor, suitable for heavy color light color non-woven seal, domestic flexo machine generally unable to print white, yellow. The development trend of flexo printing non-woven bag From the point of the current situation in our country, screen printing non-woven bag is popular, intaglio printing, thermal transfer, also has occupied a large market, whereas flexo printing this technology started relatively late, though does have made great progress in recent years, however, there is a great gap with the international advanced technology level. Three, color printing non-woven bags Color printing non-woven bag is printed with a picture of the color non-woven bag. Has the characteristics of colorful, rich. Include: non-woven bags and non-woven thermal transfer bag laminating machine. Color printing non-woven bag printing process gravure This process in two steps, namely, the first traditional graphic printing intaglio printing process to membrane, then laminating process will be patterned film composite on non-woven fabric. Generally large area color design non-woven bag adopts the technology of printing. Its characteristic is beautifully printed, using machine production, short production cycle. Another product has excellent waterproof performance, product durability is the production of other non-woven bag is good. There's a light at the end of the film and the second two to choose from, with inferior smooth frosted effect! The product fashionable and easy, durable, full color, pattern, the disadvantage is that price is usually printing non-woven fabric price is a bit expensive. Thermal transfer Thermal transfer belongs to the special printing in the printing! This method requires intermediate medium, that is, first to graphic printing to thermal transfer film or thermal transfer paper, again through the transfer printing equipment on the heat transfer the pattern to non-woven fabrics. Medium is commonly used in textile printing machine. Its advantage is: beautifully printed version, has the rich level, comparable with photos. Applicable to small area of color image printing. Defect is a long time printing design is easy to fall off, and expensive. Four, thermal transfer non-woven bags Thermal transfer non-woven bag is thermal transfer printing process of non-woven bag. Thermal transfer by any such landscape pattern or character images using thermal transfer ink to print on the high precision printing paper, again through the heat pyrograph machine high temperature and high pressure to the established temperature will design accurate transfer to the surface of non-woven fabric, the printing paper paper vivid image transfer to the non-woven bag on a special process. Thermal transfer non-woven bag making process 1, production need to be printed with high resolution images; 2, through the thermal transfer printer to print logo printed on the thermal transfer paper; 3, use pyrograph machine printing the pattern on the non-woven bag. Thermal transfer non-woven bag features: 1, design beautifully vivid, rich layers, colorful, good reproducibility, and can meet the requirements of design patterns is effect. 2, the industry a molding without matching color. 3, design, cover rate is high, strong adhesion, breathe freely, not sticky, not to crack, resistant to wash off. 4, accord with standard of green printing, no environmental pollution. Thermal transfer non-woven bag a little and disadvantages advantages 1, simple printing steps. Without plate, plate burning, repeat the tinted steps; 2, can accurate printing high-definition images, can have color transition, pattern is clear. disadvantages 1, technical difficulty is big, the printing pressure or temperature are harder to control. 2, because of the need to use high quality imported transfer paper and ink, the high cost, suitable for small area color printing non-woven bag.