Convertech International 2022 4th
14/68

In order to cope with Japan’s costs and spread them more widely than expensive deinking devices made overseas.Orient Sogyo first began to develop it by making full use of the flexographic plate cleaning techniques they had ac-cumulated until now.Separately, SAWA of ultrasonic cleaning equipment manufacturer was also asked to develop deinking equip-ment. With a track record in the elec-tronics industry, they decided to start developing a deinking device with the intention of contributing to the printing industry and aiming to create products that will help improve the environment by upholding “For global interests” as the company mission statement.As a manufacturer of gravure printing machines, Orient Sogyo was proficient in film transport and drying technology, but continued to search for cleaning technologies. On the other hand, although SAWA had ultrasonic cleaning techniques, they did not have techniques such as unwinding, trans-ferring, drying, and winding films, and they repeatedly tested them with sim-ple equipment. Initially, the two com-panies worked on the development of the deinking equipment without know-ing each other, but it was not without interaction. In terms of overseas ex-pansion, we had exchanges through trading companies, so they had the opportunity to meet in Japan, where the development of a deinking equip-ment became a hot topic, and they de-cided to combine our know-how and jointly develop it.Hidenori Harada, Managing Direc-tor of Orient Sogyo, and Hikaru Sawairi, President of SAWA also participated in the project from the same viewpoint of making environmentally-friendly equipment, saying that they would not have received the project if the clean-ing solution had been an organic sol-vent. It was found that not only can the ink be cleaned, but also the difficulty in handling organic solvents and the con-sideration of the working environment are strong.12Plastics Material Cycle Strategy, deinking equipment for removing ink from the printed film, reusing it as a film for color matching and registration, or pelletizing it into recycled resin has been de-veloped in Japan. One of these is the “MUJICA” jointly developed by Orient Sogyo Co., Ltd. and SAWA Co., Ltd. In February of this year, we visited the factory of Orient Sogyo, where the test machine is installed, in order to cover the de-velopment status.Through joint developmentThe discussion on the development of the deinking system went back to 2019, and in June of the same year, a project was launched on the oc-casion of the meeting of the gravure printing machinery subcommittee of Japan Printing Machinery Association (JPMA) to entrust the development to manufacturers who raised their hands. Equipment has been developed on the assumption that the cleaning liquid is used as provided by JPMA. Although the solution was plant-derived, it satis-fied the good ink dissolution capability, and test data were also provided by JPMA in the heating system and ultra-sonic system as the cleaning system. One of the objectives was to reduce From incineration to reuse and recyclingIn Roll-to-Roll film printing, lead film (film for test) is used for printing, and after checking registration, color matching, etc., it is switched to film for production and starts the main print-ing. Printed lead film that has been used before the main printing gener-ally becomes industrial waste. How much its waste generated depends on the printing method, the required print quality, the operator experience, and how many print jobs you have. Though these types of film are generally col-lected for simple incineration and ther-mal recycling, by the new “MUJICA” deinking equipment, the film will be

元のページ  ../index.html#14

このブックを見る