Method for heat treating short fiber fractions after separation

Details Method for heat treating short fiber fractions after separation Method for heat treating short fiber fractions after separation

1989-08-04

1991-03-12

Lacey, David L.

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Waste paper or textile waste

162 9, 162 55, 162 60, 162 68, 162147, 162149, D21B 132, D21C 502

Patent

active

049990845

ABSTRACT:
To remove disturbing wax particles and for increasing the specific volume the short fiber fraction is subjected to a thermal treatment, especially by application of water vapor or steam, in a heater, such as a worm heater throughout a defined residence time and a defined temperature. With relatively low energy expenditure the distrubing wax particles are eliminated in such a manner that no wax spots or speckles can be discerned in the finished product. The specific volume of the short fiber fraction is appreciably increased while obtaining a predetermined strength.

REFERENCES:
patent: 2317384 (1943-04-01), Mason et al.
patent: 4312701 (1982-01-01), Campbell
patent: 4332638 (1982-06-01), Mauer et al.
patent: 4334984 (1982-06-01), Vagac et al.
patent: 4405450 (1983-09-01), Selder
patent: 4704201 (1987-11-01), Keck et al.

Affiliated with

Also associated with

Rating

Method for heat treating short fiber fractions after separation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for heat treating short fiber fractions after separation , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for heat treating short fiber fractions after separation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-447064