US 12,331,456 B2
Method for processing recycled cellulose fibers, and processed recycled cellulose fibers
Hidemi Aita, Yonezawa (JP)
Assigned to TOHOKU SEIREN CO., LTD., Yonezawa (JP)
Appl. No. 17/759,383
Filed by TOHOKU SEIREN Co., Ltd., Yonezawa (JP)
PCT Filed Jan. 23, 2021, PCT No. PCT/JP2021/002351
§ 371(c)(1), (2) Date Jul. 25, 2022,
PCT Pub. No. WO2021/149826, PCT Pub. Date Jul. 29, 2021.
Claims priority of application No. 2020-010451 (JP), filed on Jan. 25, 2020.
Prior Publication US 2023/0340722 A1, Oct. 26, 2023
Int. Cl. D06M 15/05 (2006.01); D01F 2/04 (2006.01); D03D 15/225 (2021.01); D03D 15/283 (2021.01); D06B 3/02 (2006.01); D06M 101/06 (2006.01)
CPC D06M 15/05 (2013.01) [D01F 2/04 (2013.01); D03D 15/225 (2021.01); D03D 15/283 (2021.01); D06B 3/02 (2013.01); D06M 2101/06 (2013.01); D06M 2200/45 (2013.01); D10B 2331/04 (2013.01); D10B 2401/063 (2013.01)] 4 Claims
OG exemplary drawing
 
1. An anti-shrink processing method for recycled cellulose fibers, the method comprising:
a cellulose nanofiber adsorption step of immersing recycled cellulose fibers in a cellulose nanofiber dispersion in which cellulose nanofibers are dispersed, such that the cellulose nanofibers are adsorbed onto the recycled cellulose fibers;
a drying step of drying the recycled cellulose fibers onto which the cellulose nanofibers are adsorbed; and
a resin adsorption step of immersing the recycled cellulose fibers in a solution containing a resin component after the drying step.