Soft absorbent imprinted paper sheet and method of manufacture thereof
First Claim
1. A soft absorbent imprinted paper sheet characterized by a patterned array of relatively closely spaced uncompressed pillow-like zones which zones are each circumscribed by a picket-like lineament comprising alternately spaced areas of compacted fibers and relatively non-compacted fibers, said zones being disposed in staggered relation in both the machine direction and the cross-machine direction of said paper sheet.
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Accused Products
Abstract
Wet-laid paper having, when creped, improved bulk, softness, and flexibility; a relatively large cross-machine-direction to machine-direction stretch ratio; and improved burst to total tensile strength ratio. The paper is characterized by an array of uncompressed zones which are in staggered relation in both the machine direction and the cross-machine direction; and by having each uncompressed zone defined by a picket-like discontinuous lineament of compacted fibrous material. The invention also includes a process for making the paper through the use of an imprinting fabric which is configured to precipitate the requisite compacting of the picket-like lineaments prior to final drying and creping of the paper.
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Citations
8 Claims
- 1. A soft absorbent imprinted paper sheet characterized by a patterned array of relatively closely spaced uncompressed pillow-like zones which zones are each circumscribed by a picket-like lineament comprising alternately spaced areas of compacted fibers and relatively non-compacted fibers, said zones being disposed in staggered relation in both the machine direction and the cross-machine direction of said paper sheet.
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6. A method of manufacturing a soft absorbent sheet of paper characterized by a bilaterally staggered array of relatively closely spaced uncompressed pillow-like zones which zones are each circumscribed by a picket-like-lineament of alternately spaced areas of compacted fibers and relatively non-compacted fibers, said method comprising the steps of
a. forming an embryonic paper web having substantially uniform density throughout; - and
b. imprinting, prior to final drying, a network of picket-like-lineaments on said embryonic web, said lineaments comprising alternately spaced areas of compacted fibers and relatively non-compacted fibers, and said network being so configured that the lineaments discretely perimetrically enclose each zone of a bilaterally staggered array of said uncompressed pillow-like zones in said embryonic paper. - View Dependent Claims (7, 8)
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Specification