At the reporter’s apartment, on garbage collection Marine Saponin is a special extract extracted from starfish by fermenta-tion. A biotechnology com-pany, Hokkaido Environ-ment Bio Sector Co., Ltd. developed it. This extract reflects ultraviolet rays and emits intense light. The light is invisible to hu-mans, but appears so dazzling to crows that they are frightened by it and do not come near it.President Kei Kato says, “As the paper printing market was sluggish, we thought we had to do something that other companies could not do. At that time, we received a proposal to produce printed materials using starfish extract, and we thought, ‘It sounds interesting, we’ll try it,’ and commercialized it.”Mikiko MatsushimaRegarding the difficul-ties encountered during development, Director Mikiko Matsushima says, 48day, crows fly in search of food, breaking the garbage bags lined up on the sidewalk and scat-tering the contents. Just as I was wondering if there was any countermeasure, I discovered a wonderful item. It is the “Hyper Crow Shield,” where crows run away just holding it up. Marine Saponin, an extract from starfish, is applied to the paper and emits an intense luminescence when ultraviolet rays reflect off the paper, making it appear very dazzling to crows. It is manufactured and sold by HATAMOTO PRINTING COMPANY, a commercial printing company in Hok-kaido in the north of Japan.President Kei KatoHyper Crow ShieldHATAMOTO PRINTING COMPANYStarfish-derived extract ‘Marine Saponin’HATAMOTO PRINTING is a printing company mainly en-gaged in offset printing. With the recent spread of digital media and paperless documents, demand for paper print-ing has been declining. As a new commercial material, the company has focused on an extract called Marine Saponin, which crows run away from.Extract is applied over entire surface of patternThe “Hyper Crow Shield” is made by offset printing a design on a 20 cm square sheet of paper, then applying Marine Saponin to the entire surface. In addition, both sides are laminated. This process is necessary to protect it from rain, wind and snow, as it is to be installed out-doors. When used, the crow shield can be hung by string through the holes in the crow shield.Printing company develops magical sheet that crows run away from just by hanging it up
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