- Document Number:
20100155004
- Appl. No:
12/557969
- Application Filed:
September 11, 2009
- نبذة مختصرة :
Fibrous articles are disclosed containing an additive composition. The additive composition, for instance, may include a water-soluble film forming component and water-soluble modifying components that is deposited at least at the surface of a fibrous web. In some aspects, the additive composition includes polymers that demonstrate a certain LCST and melting temperature. In another aspect, the additive composition is applied to the fibrous web during the heated drying phase, such as with a Yankee dryer. The fibrous web with additive composition is then creped. The additive composition may improve the perceived softness of the web without substantially affecting the absorbency of the web in an adverse manner.
- Inventors:
Soerens, Dave A. (Neenah, WI, US); Qin, Jian (Appleton, WI, US); Werner, John A. (Hortonville, WI, US); Druecke, Frank G. (Oshkosh, WI, US); Uttecht, Cathleen M. (Menasha, WI, US); Satori, Christopher L. (Hortonville, WI, US); Wang, James H. (Appleton, WI, US)
- Claim:
1. A fibrous article comprising: a creped fibrous web having a first side and an opposite second side, wherein the fibrous web comprises pulp fibers; an additive composition disposed on the pulp fibers, the additive composition comprising a first polymer and a second polymer, wherein the first and second polymers are each water-soluble and non-crosslinked; and wherein the first polymer has a LCST of equal to or greater than 40° C., and the second polymer has a melting point of equal to or less than 90° C.
- Claim:
2. The fibrous article of claim 1 further comprising a third polymer having a LCST of equal to or greater than 40° C. and/or a melting point of equal to or less than 90° C.
- Claim:
3. The fibrous article of claim 1 wherein the first polymer is selected from poly(2-ethyloxazoline), vinyl caprolactone-vinyl pyrrolidone copolymers, polyethylene glycol methacrylates, and/or hydroxyalkylated carbohydrate polymers comprising hydroxypropyl cellulose, hydroxyethyl cellulose, methyl cellulose, and/or hydroxypropyl starch.
- Claim:
4. The fibrous article of claim 1 comprising a lubricious hand feel of greater than a 53% reduction with respect to untreated collagen as determined by a Lubricious Hand Feel test described herein.
- Claim:
5. The fibrous article of claim 1 comprising a fuzz on edge value of greater than 1.2 as determined by a Fuzz On Edge test described herein.
- Claim:
6. The fibrous article of claim 1 comprising a water extractable value of greater than 0.35% as determined by a Water Extractable test described herein.
- Claim:
7. The fibrous article of claim 1 comprising a fine crepe structure of less than or equal to 25% as determined by a Fine Crepe Structure test described herein.
- Claim:
8. The fibrous article of claim 1 wherein the first and second polymers are non-ionic.
- Claim:
9. The fibrous article of claim 1 wherein the wet out time is less than 14.8 seconds as determined by an Absorbent Rate test described herein.
- Claim:
10. The fibrous article of claim 1 wherein the fibrous web contains pulp fibers in an amount of at least 30% by weight.
- Claim:
11. (canceled)
- Claim:
12. (canceled)
- Claim:
13. The fibrous article of claim 1 wherein the second polymer is selected from polyethylene glycol polymers and/or polyalkylene oxides.
- Claim:
14. The fibrous article of claim 13 wherein the polyalkylene oxides are selected from polyethylene glycols with crystalline melting points of 30° C. or greater; polyethylene oxide; and/or polyethylene oxide-polypropylene oxide block copolymers.
- Claim:
15. The fibrous article of claim 1 wherein an outer ply of the fibrous article has a water extractable value of greater than 0.051 g/m2 as determined by the product of each outer ply's Water Extractable test described herein and its corresponding conditioned basis weight.
- Claim:
16. The fibrous article of claim 1 wherein an outer ply of the fibrous article has a water extractable value of greater than 0.044 g/m2 as determined by the product of each outer ply's Water Extractable test described herein and its corresponding conditioned basis weight, and a wet-out time of less than 14.8 seconds.
- Claim:
17. A method of applying an additive composition to a fibrous material comprising the steps of: (a) preparing the additive composition comprising a first polymer and a second polymer, wherein the first and second polymers are each water-soluble and non-crosslinked; and wherein the first polymer has a LCST of equal to or greater than 40° C., and the second polymer has a melting point of equal to or less than 90° C.; (b) mixing the first polymer and the second polymer into an aqueous solution to have a solute concentration of equal to or less than 30%; (c) applying the aqueous solution to a heated dryer surface; (d) applying the fibrous material to the solute; and (e) removing the fibrous material attached to the solute from the heated dryer surface.
- Claim:
18. The method of claim 17 further comprising the step supplying the fibrous material having pulp fibers at least 30% by weight.
- Claim:
19. The method of claim 17 wherein the additive composition is applied to the heated dryer surface at 50 to 1000 mg/square meter.
- Claim:
20. A fibrous article comprising: a creped fibrous web comprising pulp fibers; an additive composition disposed on the pulp fibers, wherein the additive composition comprises two components; and wherein the fibrous article has a fuzz on edge value greater than 1.2 as determined by a Fuzz on Edge test described herein.
- Claim:
21. The fibrous article of claim 20 wherein the components of the additive composition comprise a first polymer and a second polymer, wherein the first polymer and the second polymer are each water soluble and non-crosslinked.
- Claim:
22. The fibrous article of claim 1 further comprising a third polymer.
- Current U.S. Class:
162/111
- Current International Class:
21
- الرقم المعرف:
edspap.20100155004
Processing Request
No Comments.