Wetlay process for manufacture of highly-oriented fibrous mats

Details Wetlay process for manufacture of highly-oriented fibrous mats Wetlay process for manufacture of highly-oriented fibrous mats

1998-04-03

2000-05-23

Chin, Peter

Paper making and fiber liberation

Processes and products

Plural fiber containing

162131, 162156, 1621571, 162202, 162211, 162212, 162216, 162145, 162146, 162152, 1621572, 162158, 1621641, 1621646, 1621681, 162169, D21F 100

Patent

active

060662352

ABSTRACT:
A mat containing highly machine direction oriented (90% or greater), discontinuous reinforcement fibers, is produced on inclined wire or rotary paper making machinery. Fibers are first uniformly dispersed in an aqueous medium containing thickeners and wetting agents. In one embodiment, antifoaming agents are also added to prevent floating fibers which entangle and reduce orientation. Thermoplastic fibers or particles may also be included. Stock is brought into an open headbox in a flow pattern which allows the fibers to decelerate before approaching the porous suction belt (wire). As the fibers approach the suction belt, the fibers begin to turn and align in the streamline so as to present one end toward the suction wire. The leading ends of the fibers are gripped by the moving belt which drags the fibers out of the dispersion stock in a straight line. The porous mat produced may be dried and bonded through hot air, heat and/or pressure, or chemical binders. Stacks of such mats may be compressed partially to produce porous structures, or fully to produce

REFERENCES:
patent: 4049491 (1977-09-01), Brandon
patent: 4925528 (1990-05-01), Tse et al.
patent: 5009747 (1991-04-01), Viazmensky et al.
patent: 5164255 (1992-11-01), Weeks
patent: 5182060 (1993-01-01), Berecz
patent: 5194106 (1993-03-01), Geary, Jr.
patent: 5409573 (1995-04-01), Weeks
Casey, James P "Pulp and Paper" vol. 2 Wiley-Interscience, p1129-1153, Oct. 31, 1980.

Affiliated with

Also associated with

Rating

Wetlay process for manufacture of highly-oriented fibrous mats does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Wetlay process for manufacture of highly-oriented fibrous mats, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wetlay process for manufacture of highly-oriented fibrous mats will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1834589