Claims
- 1. A method of manufacturing a paper of mono- and multi-color ink-jet printable grade by de-watering a paper web from fiber pulp slurry, said method containing a step of adding a 2-oxetanone based size to said pulp slurry, said 2-oxetanone being manufactured from a plurality of saturated fatty acids having a main chain comprising 6 to 22 carbons essentially free of unsaturated bonds, wherein at least one said fatty acid comprises a branched chain.
- 2. The method of claim 1, wherein said 2-oxetanone size is made from a mixture of saturated linear-chain and saturated branched-chain fatty acids.
- 3. The method of claim 1, wherein said 2-oxetanone size is made from a mixture of saturated fatty acids with the proportion of linear-chain and branched-chain fatty acids in the order of 1 to 1.
- 4. The method of claim 1, wherein the 2-oxetanone size is made from a mixture of fatty acids wherein said at least one branched-chain fatty acid comprises at least 40% of said mixture.
- 5. The method of claim 1, wherein said at least one branched-chain fatty acid is isostearic acid.
- 6. The method of claim 1, wherein the 2-oxetanone size is added in an amount of from 0.05% to 0.25% of fiber weight in the pulp slurry.
- 7. The method of claim 1 including further a step of adding a hydrophobizing size onto the de-watered web.
- 8. The method of claim 1 including further a step of adding a mineral filler material to the slurry.
- 9. The method of claim 8, wherein the filler material is calcium carbonate.
- 10. The method of claim 8, wherein the filler material is precipitated calcium carbonate.
- 11. The method of claim 1 conducted under neutral conditions.
- 12. The method of claim 1 conducted under alkaline conditions.
- 13. A paper grade made using the method of claim 1.
- 14. A method of manufacturing a paper of mono- and multi-color ink-jet printable grade from fiber pulp slurry into a paper web, the method containing a step of adding a size onto the paper web, wherein the size is a 2-oxetanone based size manufactured from a plurality of saturated fatty acids having a main chain comprising 6 to 22 carbons essentially free of unsaturated bonds, and wherein at least one said fatty acid comprises a branched chain.
- 15. The method of claim 14, wherein said 2-oxetanone is made from a mixture of a linear-chain and a branched-chain fatty acids.
- 16. The method of claim 14, wherein the 2-oxetanone size is made from a mixture of fatty acids with the proportion of linear-chain and branched-chain fatty acids in the order of 1 to 1.
- 17. The method of claim 14, wherein the 2-oxetanone size is made from a mixture of fatty acids with a fatty acid proportion of 40% or higher of the at least one branched-chain fatty acid.
- 18. The method of claim 14, wherein the at least one branched-chain fatty acid is isostearic acid.
- 19. The method of claim 14, wherein the 2-oxetanone size is added in an amount of from 0.05% to 0.25% of the fiber weight in the pulp slurry.
- 20. The method of claim 14, including further a stock sizing step where a 2-oxetanone based stock size is used which is manufactured from greater number than one of fatty acids, the acids having a main chain comprising 6 to 22 carbons linked to each other by saturated bonds, and of which acids at least one is an acid with a branched chain.
- 21. The method of claim 14 further including a step of adding a filler material into the pulp slurry.
- 22. The method of claim 21, wherein the filler material is calcium carbonate.
- 23. The method of claim 21, wherein the filler material is precipitated calcium carbonate.
- 24. The method of claim 14 conducted under neutral conditions.
- 25. The method of claim 14 conducted under alkaline conditions.
- 26. A paper grade made using the method of claim 14.
- 27. A 2-oxetanone based paper size manufactured from fatty acids having a main chain containing 6-22 carbons free of unsaturated bonds, and at least 40% of the chains including a branching.
- 28. A 2-oxetanone based paper size of claim 27 wherein 40 to 60% of said fatty acids have a branched main chain.
- 29. A 2-oxetanone based paper size of claim 27 wherein said fatty acid with the branched main chain is isostearic acid.
Priority Claims (1)
Number |
Date |
Country |
Kind |
971084 |
Mar 1997 |
FI |
|
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation-in-part of copending U.S. patent application Ser. No. 09/380,752 filed Sep. 13, 1999, now abandoned, which is the U.S. national phase filing of International Patent Application No. PCT/FI98/00212 filed Mar. 11, 1998, which claims priority from Finland Patent Application No. 971084 filed Mar. 14, 1997.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
5766417 |
Brungardt |
Jun 1998 |
A |
5846663 |
Brungardt et al. |
Dec 1998 |
A |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
09/380752 |
|
US |
Child |
09/895160 |
|
US |