Method of providing paper-making fibers with durable curl and absorbent products incorporating same

摘要: A process for producing high bulk cellulosic fiber exhibiting a durable elevated curl index includes: (a) concurrently heat treating and convolving pulp at temperature pressure consistency under conditions selected so as to preclude substantial fibrillation attendant paper strength bonding development; (b) recovering the wherein length weighted of treated is least about 20% higher than prior treatment thereof. The imparted persists upon 30 minutes in laboratory disintegrator 3000 rpm 1% 125° F. Moreover, may be disk refiner very short residence times, on order several seconds or less. In general, carried out presence saturated steam from 5 150 psig.