The Swiss owner of a pulp mill in Alabama said Wednesday that it is investing $80 million to increase the amount of absorbent pulp it can produce there. The second line at the GP Cellulose Alabama River mill near Monroeville should be able to produce rolls of the absorbent material called fluff pulp in late 2023, a news release said. It said some major aspects are complete. “This investment will enable GP Cellulose to address the increasing fluff pulp needs of our customers worldwide,” said Munir Abdallah, president of GP Cellulose. “The completion of this project will add capability and flexibility to our system to meet a wider range of needs and position us to grow with our customers.” The mill’s first line has been able to produce both bales of paper pulp and rolls of fluff pulp since 2011. Fluff pulp is used in such items as diapers and feminine hygiene and adult incontinence products.