Process for producing dried singulated cellulose pulp fibers using a jet drier and injected steam and the product resulting therefrom
First Claim
1. A process for producing singulated pulp fibers comprising:
- introducing a wet pulp, steam, and air into a jet drier that recirculates said pulp in a loop;
drying said pulp in said jet drier to form singulated pulp fibers; and
removing said pulp from said jet drier and separating said pulp fibers from said air.
3 Assignments
0 Petitions
Accused Products
Abstract
This invention provides a dried singulated cellulose pulp fiber product as well as an apparatus and a method for forming singulated and dried fibers. In accordance with the process a feed pulp is delivered to a jet drier. The jet drier singulates and dries the feed pulp. The singulated and dried fibers are collected from the jet drier. The feed pulp may be treated with a treatment substance. The jet drier may be maintained at negative pressure. The product fibers may have low knot count, a low fines count, as well improved kink, curl and twist. The apparatus for carrying out the process may include a pretreatment station for supplying the treatment substance, a pulp feed device designed for pulp, a pulp feed device designed for pulp and foam suspensions, and/or a fiber separation station having a vacuum conveyor.
-
Citations
10 Claims
-
1. A process for producing singulated pulp fibers comprising:
-
introducing a wet pulp, steam, and air into a jet drier that recirculates said pulp in a loop;
drying said pulp in said jet drier to form singulated pulp fibers; and
removing said pulp from said jet drier and separating said pulp fibers from said air. - View Dependent Claims (2, 3, 4, 10)
-
-
5. A process for producing singulated pulp fibers comprising:
-
introducing a wet pulp, steam, and air into a let drier, said steam being injected through an orifice having a diameter from about 1.5 mm to about 6.5 mm, said steam being injected into said drier at a pressure of from 20 psig to 60 Psig;
drying said pulp in said jet drier to form singulated pulp fibers; and
removing said pulp from said jet drier and separating said pulp fibers from said air. - View Dependent Claims (6, 9)
-
-
7. A process for producing singulated pulp fibers comprising:
-
introducing a wet pulp, steam, and air into a jet drier;
drying said pulp in said jet drier to form singulated pulp fibers, said fibers having a length greater than about 2 mm; and
removing said pulp from said jet drier and separating said pulp fibers from said air. - View Dependent Claims (8)
-
Specification