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When using cellulose tape, one often struggle with finding the end, causing much hassle, especially for the elderly and those with slightly dull touch and visual senses. This new "ID tape" has added in between the membrane and the adhesive a layer of chemical, the phenolase, that changes color when coming in contact with air. Hence when the tape is cut with a blade, the phenolase would be exposed to the oxygen in the air, causing an oxidization effect which turns it brown, allowing users to quickly identify the end of the tape.
National Taiwan Uni. and Technology