Cloth-like base sheet and method for making the same
AssigneeKimberly-Clark Worldwide, Inc.
InventorsRalph L. Anderson, Fritz Radwanski, Henry Skoog, Donald E. Waldroup
Life of this patent
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Abstract
An improved cloth-like base web is disclosed. In particular, the base web of the present invention has a cloth-like look and feel and has improved absorbency. The base web is made by first hydroneedling a web containing pulp and/or staple fibers. A bonding material is then applied to at least one side of the web and the web is creped on at least one side. By combining a hydroneedling operation with a creping operation, a base web is produced that is strong, stretchable, very soft and absorbent.
Claims44
A base web comprising:
- a hydroneedled, single layered fibrous web having a first side and a second side, said web being hydroneedled an amount sufficient to form a swirled fiber structure, to increase the strength of the web in the z -direction and to increase the specific volume of the web;
- and
- a bonding material applied to at least said first side of said web according to a predetermined pattern, at least said first side of said web being creped after application of said bonding material, said first side of said web being creped where said bonding material has been applied to said web.
A cloth-like base web comprising:
- a hydroneedled, single layered web containing fibers, said web having a first side and a second side, said hydroneedled web including raised portions separated by channel-like portions, said raised portions having a swirled fiber structure, said web being hydroneedled an amount sufficient to increase the strength of the web in the −z direction and to increase the specific volume of the web;
- a bonding material applied to at least one side of said web in a preselected pattern;
- and
- wherein said at least one side of said web has been creped according to said preselected pattern.
A method for forming a cloth-like base web comprising the steps of:
- providing a single-layered web made from fibers;
- hydroneedling said web on a foraminous surface in an amount sufficient to increase the strength of the web in the −z direction and to increase the specific volume of the web;
- applying a bonding material to at least one side of said web according to a predetermined pattern;
- and
- creping said at least one side of said web according to where the bonding material has been applied.
A method for forming a base web comprising the steps of:
- providing a single-layered web containing fibers, said web having a first side and a second side;
- hydroneedling said web on a foraminous surface in an amount sufficient to increase the strength of the web in the −z direction and to increase the specific volume of the web;
- drying said web;
- applying a bonding material to said first side of said web in a preselected pattern, said bonding material being added to said first side in an amount from about 2% to about 10% by weight of said web, said bonding material being used to adhere said first side of said web to a first creping surface according to said preselected pattern;
- creping said first side of said web from said first creping surface;
- applying said bonding agent to said second side of said web in a preselected pattern, said bonding agent being added to said second side in an amount from about 2% to about 10% by weight of said web, said bonding material being used to adhere said second side of said web to a second creping surface;
- and
- creping said second side of said web from said second creping surface.
A cloth-like paper product comprising:
- a hydroneedled, single-layered web containing pulp fibers, said web having a first side and a second side, said web being hydroneedled an amount sufficient to increase the strength of the web in the −z direction and to increase the specific volume of the web;
- a bonding material applied to said first side of said web and to said second side of said web in a preselected pattern, each side of said web being creped according to where the bonding material has been applied;
- and
- wherein said cloth-like wiping product has a basis weight of from about 20 pounds per 2,880 sq. feet to about 70 pounds per 2,880 sq. feet.
Dependencies are inferred from the claim text.