Several domestic equipment companies are researching ink gravure printing machines. At the CHINAPLAS 2016 rubber exhibition, Weinan Outai also showcased its OTY350EW high-speed ink gravure printing machine and conducted multiple on-site demonstrations. With the continuous introduction of VOCs charging standards in multiple regions, VOCs governance in the flexible packaging industry is becoming increasingly urgent. Among numerous solutions, ink gravure printing has become the most effective source treatment for VOCs in most enterprises. The on-site demonstration of the OTY350EW high-speed ink gravure printing machine starts with low-speed register operation at a working temperature of 60-70 ℃ to ensure that the film does not deform. Then the device accelerated to 250m/min, and during the acceleration process, the color matching was very stable, running smoothly, and the noise was very low* Color temperature: 67 ℃, second color temperature: 66 ℃, third color temperature: 76 ℃.
OTY350EW high-speed ink gravure printing machine
At 250m/min, online roll changing and material feeding, as well as automatic cutting of leftover materials, were demonstrated on site. This demonstration uses ink wash from Beijing Eagle Rainbow Ink Co., Ltd. Ink contains 8% ethanol, and when adding tap water, 13% ethanol is added to the water.
Using plate materials specially made by Zhengzhou Cologne, the shallow plate, mesh holes, angles, etc. are different from ordinary solvent based inks. The scraper also uses a high-speed stable box type scraper system. When the equipment is running at high speed, the scraper can be at an ideal angle with the plate, which will not scratch the plate and improve the printing quality.
According to Mr. Outailu, although the machine only demonstrated a speed of 250m/min on site, its design speed is 400 m/min and the mechanical speed can reach 450 m/min. It has been ordered by Zhengzhou Yixing Color Printing and successfully operated at high speeds of 250 m/min and 350 m/min during Yixing's acceptance. During acceptance, an eight color test version was used, including black, blue, red, yellow, blue, green, red, and full white. The printed patterns included layers, transitions, figures, fruits, and other patterns that were difficult to print with ink. The transition color of the pattern is natural, and the colors of the characters' faces and fruits are all reproduced, meeting the printing requirements of the customer.
Due to insufficient booth length, only 3 colors were displayed on site.
Mr. Outailu said, "Our equipment needs to change the industry's understanding that ink printing must be dried at high temperatures!" Outailu's ink printing machine adopts a self-developed oven design and a unique circulating exhaust design. Therefore, although it uses traditional drying methods, its drying ability is very strong, laying the foundation for high-speed ink printing.
The disc type gapless feeding and unloading system independently developed by Outai is currently under application. The small distance clutch pressure device on the machine can prevent the film from stretching and wrinkling when the equipment is temporarily stopped, and it is also being applied for *.
Several on-site flexible packaging audience members who visited the demonstration expressed that we are closely monitoring ink printing, and we have also seen the continuous innovation and development of gravure printing equipment and ink manufacturers. In addition, our color printing enterprises actively use it and cooperate with the three parties. Ink printing technology will definitely become more and more mature.
Many viewers have expressed that ink gravure printing is a feasible and acceptable solution for VOCs source control, and believe that in the future, environmentally friendly printing methods are likely to be dominated by ink gravure printing.
As one of the exhibitors at the 2016 Rubber and Plastic Exhibition, Weinan Outai showcased its OTY350EW high-speed ink gravure printing machine at the Shanghai New Expo Center exhibition hall. At the exhibition site, there were a sea of people, both new and old friends from home and abroad, who came to the company booth to have in-depth exchanges with the exhibitors. Excellent quality and excellent service have won unanimous praise and love from customers!
With excellent quality and excellent service, Weinan Outai has achieved fruitful results at the Rubber and Plastic Exhibition.
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