Method of making a paper web having a high internal void volume of secondary fibers
First Claim
1. A method for forming a soft absorbent paper product comprising:
- supplying a furnish comprising fibers in an aqueous stream;
adding a charge modifier to said furnish wherein said charge modifier contacts said furnish for a time sufficient to reduce the charge in the furnish;
adding a debonder to said furnish, after said charge has been reduced;
adding a retention aid to said furnish after said debonder or wet has been in contact with said furnish for a time sufficient to allow distribution of said debonder on said fibers;
supplying said furnish to a headbox, and wherein said furnish has a consistency of not greater than 0.9% as supplied to the headbox;
applying said furnish to a forming wire and forming a nascent web; and
drying said web to form a paper product.
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Accused Products
Abstract
The present invention is a method of making a near-premium quality paper product having good strength and absorbency characteristics and a product made by that method. The invention is also a method for retaining a high ash content within a paper web formed by conventional wet pressing. The present invention is also a method for retaining a high percentage of softening agent within a paper web that includes such an agent. Further, the present invention is a soft absorbent paper product having a high void volume. Finally, the invention is also a method for producing a soft, absorbent, and near premium paper product having a high void volume using an undulatory crepe blade having a multiplicity of serrulations in its rake surface which presents differentiated creping angles and/or rake angles as to the paper being creped.
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Citations
34 Claims
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1. A method for forming a soft absorbent paper product comprising:
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supplying a furnish comprising fibers in an aqueous stream; adding a charge modifier to said furnish wherein said charge modifier contacts said furnish for a time sufficient to reduce the charge in the furnish; adding a debonder to said furnish, after said charge has been reduced; adding a retention aid to said furnish after said debonder or wet has been in contact with said furnish for a time sufficient to allow distribution of said debonder on said fibers; supplying said furnish to a headbox, and wherein said furnish has a consistency of not greater than 0.9% as supplied to the headbox; applying said furnish to a forming wire and forming a nascent web; and drying said web to form a paper product. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A method for improving the retention of a softener or debonder in a web produced from a furnish containing contaminants selected from ash, fines, filler and mixtures thereof comprising, in the following order:
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adding to said furnish a charge-modifying agent capable of neutralizing the charge on said contaminants, allowing the charge-modifying agent to contact the furnish for a time sufficient to neutralize charge on said contaminants; adding to said furnish a softener or debonder; adding to said furnish a retention aid; forming a nascent web from said furnish; and drying said web, wherein the charge on the contaminants has been reduced by at least 70% of the original value.
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Specification