Method for producing a blade coated paper from recycled, high li

Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Waste paper or textile waste

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

162 8, 162 13, 162135, D21C 502

Patent

active

055385940

ABSTRACT:
A method is disclosed for producing, in a continuous throughput, high quality paper from recycled waste paper utilizing high consistency, low shear pulping, followed by a series of cleaning steps to produce a wet, friable pulp which is digested and optionally bleached. The resulting pulp can be run on a paper machine alone or blended with virgin pulp to produce a paper containing at least 10% by weight recycled paper with less than 20 ppm per unit area solid non-fibrous contaminants larger than 0.3 mm.sup.2, and which may be blade coated on a high speed paper machine.

REFERENCES:
patent: 1625279 (1927-04-01), Plumstead
patent: 3440134 (1969-04-01), Murphy, Jr.
patent: 3471361 (1969-10-01), Brill
patent: 3736223 (1973-05-01), Marsh
patent: 4012280 (1977-03-01), Holton
patent: 4231526 (1980-11-01), Ortner et al.
patent: 4272315 (1981-06-01), Espenmiller
patent: 4317701 (1982-03-01), Pfalzer et al.
patent: 4360402 (1982-11-01), Ortner et al.
patent: 4604193 (1986-08-01), Lamort
patent: 4780179 (1988-10-01), Clement
patent: 4818339 (1989-04-01), Lamort
patent: 5080759 (1992-01-01), Buzby et al.
patent: 5122228 (1992-06-01), Bouchette et al.
patent: 5131980 (1992-07-01), Chamblee et al.
patent: 5139616 (1992-08-01), Ling
patent: 5147503 (1992-09-01), Nguyen
patent: 5183535 (1993-02-01), Tikka
Aikawa and Kanazawa, "Processing OCC, Deinking, Approach Flow Screening," World Pulp & Paper Technology 1990, pp. 102-105, Sterling Publications International Limited.
T. Kanazawa, "Recovery of Unbleached Kraft From A.O.C.C. For Use As . . . Kraft Pulp", Nov. 1988.
A. de Ruvo et al, "Upgrading of Pulp from Corrugated Containers by Oxygen Delignification", Jun. 1986, Tappi, pp. 100-103.
T. Garbutt, "Hot Melts Pose a Complex Problem . . . Age," vol. 35, No. 12, Nov. 1992, pp. (3 unnumbered pages).
C. E. McCarthy, "Alkali Soaking Technology Yields Cleaner Furnish", Paperage Recycling Annual 1990, pp. 12, 13 and 53.
J. T. Bales et al, "Pima Roundtable: Recycle Chemistry", PIMA Magazine, Jun. 1992, pp. 37-44.
E. Healy, "Alkali Soaking Ups Quality, . . . Furnishers", Pulp & Paper, Sep. 1990, pp. 138-139.
"Pulping of Secondary Fiber, Recycling Paper: From Fiber . . . Product", pp. 571-581; 574-575; and 580 (author/date unknown).
D. S. Rao, "Old Corrugated Containers: Genesis to Paper Machine", Recycling Paper, 1983, pp. 107-111.
Nguyen et al, "Bleached Pulps for Printing & Writing . . . Containers", Progress in Paper Recycling, May 1993.
S. Temple, "Longview Fibre Doubles OCC Pulping . . . Product", Pulp & Paper, Mar. 1992, p. 187.
A. J. Fenton, "Secondary Fiber Technology--1974", Tappi, vol. 58, No. 4, Apr. 1975, pp. 78-83.
R. J. Getman et al, "Series Screening of Waste Corrugated", Tappi, vol. 60, No. 7, Jul. 1977, pp. 137-139.
D. C. Grantz, "Continuous Pulping of OCC and Mixed Waste", Progress in Paper Recycling, May 1992, pp. 37-44.
A. de Ruvo, "Upgrading of OCC by Oxygen Delignification", 1985 Pulping Conference, pp. 553-560.
M. Ketcham, "Secondary Fiber Pulping: How Much Cleaning? . . . Worthwhile", Tappi, 1990 Engineering Conference, pp. 791-802.
T. Bahr, "Recycling Paper: From Fiber to Finished Product", Recent Developments in Helical-Rotor Pulpers, (date unknown), pp. 597-600.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method for producing a blade coated paper from recycled, high li 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 producing a blade coated paper from recycled, high li, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing a blade coated paper from recycled, high li will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-710459

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.