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US 5,989,682 AGranted
Scrim-like paper wiping product and method for making the same
AssigneeKimberly-Clark Worldwide, Inc.
InventorRalph L. Anderson
Life of this patent
Estimating the term…
Abstract
The present invention is generally directed to single ply scrim-like wiping products having great softness and strength. The wiping products are made from a paper web containing softwood fibers in combination with bicomponent fibers. Once formed, the paper web is treated on each side with a bonding agent in a preselected pattern. Both sides of the paper web are also creped. In order to create a wiping product with a scrim-like appearance, a reticular pattern is then embossed into the paper web. Specifically, the pattern is permanently imprinted into the product by compressing and fusing together the bicomponent fibers contained within the lines of the pattern.
Claims33
A single ply paper wiping product comprising:
- a paper web containing pulp fibers in combination with bicomponent fibers, said bicomponent fibers including a core polymer surrounded by a sheath polymer, said core polymer comprising a material selected from the group consisting of polyester and nylon, said sheath polymer comprising a material selected from the group consisting of polyethylene and polypropylene, said bicomponent fibers being present within said paper web in an amount from about 10% to about 30% by weight, said paper web having a first side and a second side;
- a bonding agent applied to said first side of said web and to said second side of said web in a preselected pattern, said first side and said second side of said paper web being creped in the areas where said bonding agent has been applied;
- and
- a reticular pattern embossed into at least one side of said paper web, said reticular pattern comprising a network of compressed lines formed into said paper web under sufficient heat and pressure to cause said bicomponent fibers to compress and fuse together within said lines.
1 more element
A method for producing a single ply paper wiping product comprising the steps of:
- providing a paper web containing pulp fibers in combination with bicomponent fibers, said bicomponent fibers comprising a core polymer surrounded by a sheath polymer, said core polymer having a melting temperature higher than the melting temperature of said sheath polymer, said paper web having a first side and a second side;
- applying a first bonding agent to said first side of said web in a preselected pattern;
- applying a second bonding agent to said second side of said web in a preselected pattern;
- creping at least one side of said web;
- and
- embossing a reticular pattern into said paper web, said reticular pattern comprising a network of compressed lines formed into said paper web under sufficient heat and pressure to cause said bicomponent fibers to fuse together within said lines.
3 more elements
A method for producing a single ply paper wiping product comprising the steps of:
- providing a paper web containing softwood fibers in combination with bicomponent fibers, said bicomponent fibers comprising a core polymer surrounded by a sheath polymer, said core polymer having a melting temperature higher than the melting temperature of said sheath polymer, said bicomponent fibers being present within said paper web in an amount from about 10% to about 30% by weight, said paper web having a first side and a second side;
- applying a bonding agent to said first side of said web in a preselected pattern, said bonding agent being added to said first side in an amount from about 4% to about 8% by weight of said web, said bonding agent being used to adhere said first side of said web to a first creping surface;
- 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 4% to about 8% by weight based on the weight of said web, said bonding agent being used to adhere said second side of said web to a second creping surface;
- creping said second side of said web from said second creping surface;
- and
- embossing a reticular pattern into said paper web, said reticular pattern comprising a network of compressed lines formed into said paper web under sufficient heat and pressure to cause said bicomponent fibers to fuse together within said lines.
4 more elements
A method for producing a single ply paper wiping product comprising the steps of:
- providing a paper web containing softwood fibers in combination with bicomponent fibers, said bicomponent fibers including a core polymer surrounded by a sheath polymer, said core polymer comprising a material selected from the group consisting of polyester and nylon, said sheath polymer comprising a material selected from the group consisting of polyethylene and polypropylene, said bicomponent fibers being present within said paper web in an amount from about 10% to about 30% by weight, said paper web having a first side and a second side;
- applying a bonding agent to said first side of said web in a preselected pattern, said bonding agent covering from about 40% to about 50% of the surface area of said first side of said web, said bonding agent being added in an amount from about 4% to about 8% by weight, said bonding agent being used to adhere said first side of said paper web to a first creping surface;
- 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 covering from about 40% to about 50% of the surface area of said second side of said web, said bonding agent being added in an amount from about 4% to about 8% by weight, said bonding agent being used to adhere said second side of said web to a second creping surface;
- creping said second side of said web from said second creping surface;
- heating said paper web to a temperature sufficient to cure said bonding agent, said temperature being above the softening point of said sheath polymer causing said bicomponent fibers to fuse together;
- and
- while said paper web is at a temperature above the softening point of said sheath polymer, embossing a reticular pattern into said paper web, said reticular pattern comprising a network of compressed lines formed into said paper web under sufficient pressure to cause said bicomponent fibers to compress and fuse together within said lines.
5 more elements
Dependencies are inferred from the claim text.