MUMBAI, India, July 13 -- Intellectual Property India has published a patent application (202617074016 A) filed by Unicharm Corporation on June 15, 2026, for Method For Producing Recycled Fibers From Mixture Of Superabsorbent Polymer And Pulp Fibers.
Inventors include Kurita, Noritomo; and Konishi, Takayoshi.
The application for the patent was published on July 10, 2026, under issue no. 28/2026.
Abstract: Provided is a method for producing recycled fibers from a mixture of a superabsorbent polymer and pulp fibers, the method making it possible to achieve both treatment speed and energy efficiency in ozone treatment. This method for producing recycled fibers from a mixture of a superabsorbent polymer and pulp fibers comprises a first treatment step (S6) and a second treatment step (S9). The first treatment step includes removing at least part of the superabsorbent polymer by treating the mixture of the superabsorbent polymer and the pulp fibers with ozone in a first treatment liquid (52-1) within a first treatment tank (31-1) while supplying ozone to the first treatment liquid. The second treatment step includes treating the pulp fibers with ozone in a second treatment liquid (52-2) within a second treatment tank (31-2) while supplying ozone released from the first treatment liquid within the first treatment tank to the second treatment liquid.
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