Eight harness papermaking fabric
AssigneeAlbany International Corp.
InventorEdward R. Hahn
Life of this patent
Estimating the term…
Abstract
A papermaking fabric is woven from synthetic warp and weft threads in an eight harness weave pattern, and is characterized by having long knuckles of at least six crossovers in length in at least one thread system with a minimal number of interlacings of the threads in the fabric. In one embodiment, the long knuckles of each weave repeat of one thread system are six crossovers in length on one side of the fabric and the short knuckles of the system are two crossovers in length on the other side of the fabric. In a second embodiment, the long knuckles of each weave repeat of each thread system are seven crossovers in length and the short knuckles are one crossover in length.
Claims11
In a papermaking fabric having machine direction and cross machine direction thread systems that interlace with one another to form thread knuckles in each thread system on opposite sides of the fabric, the combination of:
- a weave repeat pattern of eight crossovers for each thread system;
- the cross machine direction threads having long knuckles of at least six crossovers in length on the paper forming side of the fabric;
- the machine direction threads having binding knuckles on the same fabric side of a single crossover;
- the long knuckles of the cross machine direction threads on the paper side of the fabric extend outwardly of the machine direction thread knuckles;
- and
- the threads of both thread systems are of a polymeric material.
In a papermaking fabric having machine direction and cross machine direction thread systems that interlace with one another to form thread knuckles in each thread system on opposite sides of the fabric, the combination of:
- a weave repeat pattern of eight crossovers for each thread system;
- threads of one direction being woven in a 2.times.6 pattern;
- and
- the threads of both thread systems being of a polymeric material.
A papermaking fabric having machine direction and cross machine direction thread systems that interweave with one another to form thread knuckles in each thread system on opposite sides of the fabric, comprising:
- a weave repeat pattern of eight crossovers for each thread system;
- threads of one thread system having four interlacings through the fabric in each weave repeat to form long knuckles of four crossovers in length;
- and
- threads of the other thread system having two interlacings through the fabric in each weave repeat to form long knuckles of six crossovers in length.
A papermaking fabric having machine direction and cross machine direction thread systems that interweave with one another to form thread knuckles in each thread system on opposite sides of the fabric, comprising:
- a weave repeat pattern of eight crossovers for each thread system;
- threads of one thread system having four interlacings through the fabric in each weave repeat to form two knuckles on one side of the fabric each of a single crossover in length, and two knuckles on the other side of the fabric, one of two crossovers in length and the other of four crossovers in length;
- and
- threads of the other thread system having two interlacings through the fabric in each weave repeat to form one knuckle on said one side of the fabric of six crossovers in length, and one knuckle on said other side of the fabric of two crossovers in length.
Dependencies are inferred from the claim text.