Digital inkjet printing is a systematic project, and its key technologies are research and development of equipment, software, and color inks. The high-speed belt-type digital inkjet printer adopts 6 world-class American-made industrial grade stainless steel piezoelectric nozzles. The maximum printing speed is 40m/h (60dpi, 4 colors), and the highest printing precision is 080dpi. At the same time support a variety of professional inks and fabrics, software and hardware control technology to control the size and speed of ink droplets. Realized the industrial digital inkjet printing production.
Digital inkjet printing machine technology involves digital printing equipment and manufacturing methods and processes. It is a combination of software and hardware. The software part includes textile graphic online collaborative design technology, special RIP control technology suitable for various varieties of textiles, etc. The hardware part includes digital Printing electromechanical structures, etc. VEGA high-speed digital inkjet printing machine includes a belt-driven media conveying device, an inkjet printing device, an ink supply device, a belt guiding device, a synchronous lifting device for an inkjet printing device, a belt surface cleaning device, and a medium adhesive guide. Attached to the applicator, etc. The VEGA system adds a 4-bit to 6-bit RGB format conversion based on the traditional image compression technology, and proposes a new method for efficient coding and coding of collaborative design shared patterns.
Digital inkjet (active, acidic) printing process. Fabric digital inkjet printing is only part of the entire production process of the printed fabric, and it must be accompanied by matching fabric pre-treatment and post-processing equipment. Fabric pretreatment → pre-press drying and flattening → inkjet printing → post-press drying → steaming → water washing → soaping → water washing → drying. Pretreatment process. The choice of pretreatment agent varies depending on the dye component contained in the ink. Such as the addition of certain enhancers, can improve the dyeing and fixing effect of reactive dyes, can reduce the permeation. The addition of the alkaline agent sodium hydrogencarbonate accelerates the fixation reaction of the reactive dye with cellulose during steaming, and the faster the fixation, the less likely to permeate. Sodium alginate is mainly used to prevent the dye from colliding and drying during dyeing and drying, and to improve the fineness of printing. Increasing the wetting of the fabric by the ink or paste and ensuring that the dye is well dissolved during fixing is also an important condition for ensuring sufficient dyeing of the dye, so sometimes some surfactant is added to the pretreatment liquid.
Fabric requirements. In order to obtain a bright and clear pattern, fabrics used for digital inkjet printing should have the following conditions: absorption of ink or color paste should be fast, and can inhibit the permeation of the dye solution: allowing the ink droplets to overlap, and the adhered droplets will not Flow and permeation: The ink droplets can be kept fine and uniform in size on the fabric. The ink droplets are round in shape and smooth in circumference. It can be seen that for the application of digital inkjet printing technology, the main measure to improve the printing effect is to carry out special pretreatment of the fabric to reduce the permeation.
Printing processing. The high-speed belt-type digital inkjet printing machine absorbs the advantages of the traditional printing machine, and adopts the translational belt conveying method to meet the printing requirements of the whole roll, positioning and other fabric products. On the one hand, the printed fabric should be dried in time to prevent the dye ink from coloring. On the other hand, it needs to be steamed and washed in time to prevent the dye from being reduced or oxidized after a long time to affect the color development. The post-treatment process is as follows: steaming (00 ~ 0 ° C, 5 ~ 45 min) → cold water washing (anti-staining soaping agent g / L) → cold water washing two → 80 ° C soaping (neutral soaping agent g /L)→Two washes in cold water→Fixed softness (fixing agent g/L, softener%, room temperature treatment for 5 min)→drying (00 °C). The steaming equipment can be selected from continuous flat steaming machines or cylindrical steamers. Due to the bright color of the cylinder steamer, it is recommended to use a cylindrical steamer.
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Founded in 2004, Jiangmen YIDENG Lighting Technology CO., LTD has evolved into a global company that designs, engineers and manufactures innovative and decorative lighting solutions with a new sustainable LED collection for residential, retail, hospitality, museum, industrial and commercial applications.
We have developed an extensive line of award-winning LED luminaires including patented products and revolutionary LED fixtures. Technical innovation is central to what people have come to expect from YIDENG Lighting brand.
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