Continuous papermaking process

Details Continuous papermaking process Continuous papermaking process

1976-04-06

1978-03-28

Lindsay, Jr., Robert L.

Paper making and fiber liberation

Processes and products

Non-fiber additive

162178, 162190, D21F 166

Patent

active

040813193

ABSTRACT:
A continuous, essentially closed recirculating papermaking process is provided by using a dispersing medium of adjustable viscosity. The process permits the continuous reuse of the medium under preferred operating conditions. It includes the steps of forming a dispersion of fibers within the adjustable medium containing a pH sensitive viscosity producing agent, reducing the fiber consistency and the viscosity within the dispersion while maintaining the concentration of the agent substantially unchanged, subsequently forming a fibrous web material on a papermaking screen from said dispersion of reduced fiber consistency while separating the dispersing media from the fibers forming the web and continuously collecting the separated media and recirculating it within the system to effect a subsequent fiber dispersion as well as a fiber consistency reduction and viscosity reduction without substantially changing the concentration of the viscosity producing agent. The separated and recirculated dispersing media is capable of forming a high viscosity dispersing media for the fibers at the time of forming the subsequent fiber dispersion without the addition of more viscosity producing agent.

REFERENCES:
patent: 3098786 (1963-07-01), Biles et al.
patent: 3245871 (1966-04-01), Yang
patent: 3391057 (1968-07-01), Spence et al.

Affiliated with

Also associated with

Rating

Continuous papermaking process does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-641180