Process for producing newsprint

Details Process for producing newsprint Process for producing newsprint

1980-11-24

1982-08-31

Alvo, Steve

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Chemical treatment after start or completion of mechanical...

162 28, 162 96, 162141, D21C 102, D21C 326

Patent

active

043471013

ABSTRACT:
A high quality newsprint pulp can be produced from wood or vegetable fibers by thermomechanically pulping one portion of these fibers and thermochemically pulping the remaining portion. After combining these pulps the result is a pulp which has a GE brightness of 55 to 60, an opacity of 93 to 96 percent, and a relatively high tear strength. A pulp useful for making low strength papers can be produced by solely thermomechanically pulping fiber and directly using this pulp to make such products.

REFERENCES:
patent: 2862813 (1958-12-01), Birdseye
patent: 2913362 (1959-11-01), Cusi
patent: 3238088 (1966-03-01), Villavicencio
patent: 3773610 (1973-11-01), Shouvlin
patent: 4152197 (1979-05-01), Lindahl et al.
patent: 4235665 (1980-11-01), Reinhall
patent: 4260452 (1981-04-01), Kruger et al.
"High Yield Bagasse Pulping Process Developed", pp. 23-24.

Affiliated with

Also associated with

Rating

Process for producing newsprint does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for producing newsprint, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing newsprint will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2183370