Paper web guide roller, particularly for use with a rotary print

Details Paper web guide roller, particularly for use with a rotary print Paper web guide roller, particularly for use with a rotary print

1992-06-02

1994-06-14

Burr, Edgar S.

Printing

Antismut device

492 30, 492 37, 492 53, 101417, 101420, B41F 3500, B41L 4100

Patent

active

053200420

ABSTRACT:
To provide a paper guide roller on which freshly printed ink does not smear while, still, the roller has a surface which is sufficiently rough so that it can be rotated by frictional engagement with a paper web passing thereover, the roller is formed with a base body, typically of steel or cast iron, on which a jacket (3) is placed. In accordance with the present invention, the jacket (3) has two layers, a first layer (4) of ultra-high molecular plastic material, for example polyethylene or polytetrafluorothylene, and a second layer (5) thereover, which has glass balls or beads (6) mixed therein. The material of the second layer can be the same as the first, or different; the glass balls or beads project by a distance of about 20% of their diameter from the second layer. A suitable thickness for the first layer is about 0.3 mm, and the glass balls or beads may have diameters of between 0.2 to 1 mm. The roller is easy to clean since the surface of the glass balls or beads (6) as well as the surface between the glass balls or beads is ink-rejecting or ink-repellent.

REFERENCES:
patent: 1002842 (1911-09-01), Harriss
patent: 3597818 (1971-08-01), Beck
patent: 4083092 (1978-04-01), Imperial et al.
patent: 4325998 (1982-04-01), Chapman
patent: 4368568 (1983-01-01), Watanabe
patent: 4426757 (1984-01-01), Hourticolon et al.
patent: 4586224 (1986-05-01), Sartor et al.
patent: 4683480 (1987-07-01), Sakamoto et al.
patent: 5042383 (1991-08-01), Wirz

Affiliated with

Also associated with

Rating

Paper web guide roller, particularly for use with a rotary print does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Paper web guide roller, particularly for use with a rotary print, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Paper web guide roller, particularly for use with a rotary print will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1240654