Super absorbent fiber is a new kind of fiber which can absorb a large amount of ... water, urine, blood,ect. Super absorbent fiber is a new kind of fiber which can absorb a large amount of ... water, urine, blood,ect. Its different from normal fiber when absorbing, rather than through physical absorption , it ... theory, then swell itself , and keep fluid in fiber, hard to press out. So it has strong ...