Wet end starch application

Details Wet end starch application Wet end starch application

1996-02-07

1998-08-11

Chin, Peter

Paper making and fiber liberation

Processes and products

Non-fiber additive

162183, 162186, D21H 2328

Patent

active

057923175

ABSTRACT:
A method of applying a starch sizing to a forming web on a paper machine, such as in the form of a curtain on a fourdrinier machine, employs a suspension of uncooked particulate starch and water which is applied, as a suspension, to the inlet of a downwardly opening die positioned over the forming web and applied at a consistency of between about 2 to 10% onto the surface of the web as a free falling curtain, the impact velocity of which is controlled to a rate sufficiently low to prevent distortion of the web on impact. Improved drainage is achieved by heating the suspension to a temperature less than about 150.degree., to prevent the cooking of the starched particles. The curtain may be applied to the web at fourdrinier table consistencies as low as about 2% and still obtain starch retention rates of about 80%.

REFERENCES:
patent: 874946 (1907-12-01), Eichorn et al.
patent: 1538582 (1925-05-01), Olander et al.
patent: 1903236 (1933-03-01), Johnsen
patent: 2373914 (1945-04-01), Quinn
patent: 3919042 (1975-11-01), Spiller
patent: 3992252 (1976-11-01), Coleman
patent: 4093016 (1978-06-01), Coleman
patent: 4342423 (1982-08-01), Coleman
patent: 4355762 (1982-10-01), Coleman
patent: 5149341 (1992-09-01), Taylor et al.
patent: 5433826 (1995-07-01), Glomb et al.

Affiliated with

Also associated with

Rating

Wet end starch application does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-385550