New technology and equipment: Breaking through the bright light (2)

Normal > 7. Liquid flexo


Normal > Since the paper component of the liquid flexographic material is a highly viscous resin, it is also called a liquid flexible resin plate. The application of liquid flexible resin plate to corrugated box printing in Europe, the United States, Japan, and Australia can be described as popular, and the application in corrugated boxes in Southeast Asian countries also accounts for half of the world. The liquid flexible resin sheet is washed with a water solvent, which is pollution-free, environmentally friendly, and less expensive than the solid-state version. The water affinity of the plate surface is much higher than that of the solid plate, and the ink transfer effect is better. The plate version of the liquid version takes about 1.5 hours, while the solid version requires more than 3.5 hours.


Normal > The application of liquid flexible cardboard in China is relatively low compared to foreign countries. So far, there are only a few liquid photopolymer board machines in the country. However, from the perspective of environmental protection and increasing the self-interest of the company, over time, the liquid photosensitive resin flexible plate making will replace the solid flexible plate making will be the trend of the times.


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Normal > 7. Corrugated paper conveyor belt


Normal > At the 2005 China International Exhibition, we saw the ondulvit 1f anti-skid belt brought by the French company Brick, which is specially used for the skidding on high-speed lines. It has a high coefficient of friction and heat resistance. The layer can ensure that any shift is run on the high-speed line without slipping, so the benefits are obvious: reduce downtime; production is not limited by the paper conditions; the cut length is more accurate on the cross slitter; The lower belt is clean and there are no indentations on other processing lines. This can completely change the design of the stretch or cold section of the production line, such as designing machines with fewer pressure rollers to make the FCT better; designing short machines, reducing manufacturing costs, and saving space; obtaining perfect tension to make the cardboard size precise The cardboard does not slip.


Normal > At present, some of the world's advanced manufacturers have used this type of belt on new double-sided machines, and have also achieved unexpected success.


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Normal > 8. Anilox roller cleaning technology


Normal > Advanced Anilox Cleaning Concept “ THIXO Mask Cleaner” has become the protagonist of this year's anilox roller cleaning technology. The principle of this technology is to use high-pressure, high-density, particulate oxygenated carbon dioxide for long-term storage or to facilitate worker operations. After fully recharging the jets, the concentrated elements begin to decompose after fully distributing and mixing compressed air. When spraying, the contact of carbonated oxygen with the ink on the anilox roller rapidly oxidizes the ink into organic substances, so that the independent molecular structure of the substance tends to fall off.


Normal> This technology is characterized by: rapid cleaning, low cost; can reduce production downtime; dry decontamination can be directly operated on the production line; THIXO element instantaneous vaporization during the injection, no residue, no secondary pollution; Injury to ceramics and metals; harmless to the human body; simple and safe to operate. At present, Guangzhou Nuorun Industrial Material Co., Ltd. has introduced the technology into the domestic market.


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Normal > 9. High speed splicer


Normal> High-speed and high-efficiency is the direction that the carton enterprises have pursued in low cost in the case of cost increase and profit decline in recent years. The BSH SP-X's take-up speed can be stabilized at 350m/min. This is because bsh's dual control presets the paper side tension in all operating condition modes, avoiding extreme tension formation of waste paper while maintaining high quality. The serrated knife can ensure the smooth cutting of the old paper, and the affixing system guarantees the safe reception of the new paper web, and the reliability of the tying paper exceeds 99%. The zero end of the paper is only 60mm, which can avoid unnecessary waste when the paper is received, reduce the downtime of the wire and quality problems, ensure a stable high production speed and high board quality of the entire production line. At present, reliable and continuous operation is ensured, and the average production throughput and board quality are improved; it can be adapted to all grades of base paper (80g/m2 to 440g/m2); it can ensure smooth embedding of existing tile lines.


Normal > At the same time, the Qingdao Micron SSP series is designed to meet the domestic needs of 150m / min, 180m / min of the speed of the paper to meet the needs of more than 80% of the domestic production of paperboard production lines, accurate tracking and control of the speed of the floss paper base paper success rate It is of utmost importance that the very gentle tension changes in the paper-making process make it easy to use the low-tensile-level fragile base papers, and that those functions and indicators that are not practically reflect the design concept for the customers and greatly reduce purchases. Machine cost and use cost. Reducing the loss of raw paper, reducing the production energy consumption, and automatically controlling the full-speed control of high-speed paper-feed PLC.


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Normal > 10. Equalizer


Normal > The automatic packaging production line has stricter and stricter requirements on the dimensional accuracy of the carton. Once the precision is not up to the standards required by the automatic production line, it will seriously affect the production. The DICAR equilibrium period unveiled at the 2005 China International Corrugated Exhibition provided an excellent solution. The equalizer is sleeved on the bearing sleeve, no matter how the diameter of the bottom rubber pad changes, because the bearing can slide freely on the bottom roller, so that the surface speed of the bottom rubber pad is completely controlled by the cutter die, so that the die-cut carton and cutter die The shape is exactly the same.


Normal > The major progress made by the equalizer in controlling the size of the carton is that it does not require operator intervention and does not require the operator to adjust the drum speed at regular intervals. Instead, it is automatically adjusted by the equalizer. Based on this, when running more than one plate or multiple sets of molds, there will be no end to end.


Normal > Since the linear speeds of the upper and lower rollers are completely the same, the tension applied to the bottom pad is reduced, so that the life of the bottom pad is prolonged. In addition, the diameter of the die and the diameter of the bottom pad do not have to be the same, so that the cut-in point of each roller knife is uniformly moved on the bottom pad, that is, each time does not fall on the same point, the wear of the bottom pad is very average, and the service life is longer. Its practical application proves that the life of the bottom pad on the equalizer can be extended by more than 30%. The replacement of the DICAR equalizer bottom pad is very convenient and takes only 5 minutes, which saves considerable downtime.

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Normal > 11. Nanotechnology Applications


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Next: Flexible packaging products: to raise the bar on their own The previous article: New breakthroughs in wine packaging materials and technology
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