reused as the cleaned film for lead film and pelletized as not low value added but with transparency and high value added so that expanding the range of recycling.When the printed film enters the cleaning unit, the cleaning liquid is first applied to the film by a spray meth-od, the ink is dissolved by applying an ultrasonic wave, the ink is removed by a brush, and the cleaning liquid is washed with water in the rinsing unit of the next process to complete desorp-tion. In the demonstration on the test-ing equipment, the reverse printed film of process colors is transferred by the cleaning speed 50m/min, and visually observed the cleaned film after drying from a place as far as 1m, but the ink 13Photo 1 Testing equipment installed at Orient Sogyo PlantPhoto 2 Cleaning liquid regeneration unitPhoto 3 Non-solvent-recycling heat recovery drying system “PhoeniX Photo 4 Feeding printed filmDryer”MUJICA specificationsPhoto 1 shows a testing equipment placed on a Orient Sogyo. From the left, the configuration is as follows: unwind-ing, washing unit, rinse unit, dryer, and winding. The size of the testing equip-ment is 7750mm long, 2400mm wide, and 3000mm high, and the cleaning liquid regeneration equipment (Photo 2) is placed next to the cleaning unit. In addition, the dryer section is equipped with non-solvent-recycling heat recov-ery drying system “PhoeniX Dryer” (Photo 3) developed by Orient Sogyo, and the amount of heat required for drying is also reduced by about 30% compared with the conventional return system by the waste heat recovery sys-tem. For the testing machine, the appli-cable film cleaning width is 600mm, an actual equipment is able to handle up to 1240mm wide (the equipment width is 2700mm). The height of dryer sec-tion is expected to be 2000mm. The cleaning speed is based on 50m/min, although it is required to adjust de-pending on the condition of the printed films.
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