Method of cleaning residue from a surface using a high efficiency disposable cellulosic wiper
US-2015144157-A1 · May 28, 2015 · US
High efficiency disposable cellulosic wiper
US9259131B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9259131-B2 |
| Application number | US-201514596286-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 14, 2015 |
| Priority date | Mar 21, 2006 |
| Publication date | Feb 16, 2016 |
| Grant date | Feb 16, 2016 |
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Abstract
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A disposable cellulosic wiper includes a percentage by weight of pulp-derived papermaking fibers, and a percentage by weight of regenerated independent cellulosic microfibers having a number average diameter of less than about 2 microns and a characteristic Canadian Standard Freeness (CSF) value of less than 175 ml. The microfibers are selected and present in amounts such that the wiper exhibits an average effective pore radius of less than 50 microns.
First claim
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We claim: 1. A disposable cellulosic wiper comprising: (a) a percentage by weight of pulp-derived papermaking fibers; and (b) from about 10% to about 75% by weight of fibrillated regenerated independent cellulosic microfibers having a number average diameter of less than about 2 microns and a characteristic Canadian Standard Freeness (CSF) value of less than 175 ml, the microfibers being selected and present in amounts such that the wiper exhibits an average effective pore radius of less than 50 microns. 2. The disposable cellulosic wiper according to claim 1 , wherein the percentage by weight of the pulp-derived papermaking fibers is 25% or more. 3. The disposable cellulosic wiper according to claim 1 , wherein the wiper includes more than 25% by weight of the fibrillated regenerated independent cellulosic microfibers. 4. The disposable cellulosic wiper according to claim 1 , wherein the wiper includes more than 30% by weight of the fibrillated regenerated independent cellulosic microfibers. 5. The disposable cellulosic wiper according to claim 1 , wherein the wiper includes more than 35% by weight of the fibrillated regenerated independent cellulosic microfibers. 6. The disposable cellulosic wiper according to claim 1 , wherein the microfibers are selected and present in amounts such that the wiper exhibits an average effective pore radius of less than 40 microns. 7. The disposable cellulosic wiper according to claim 1 , wherein the microfibers are selected and present in amounts such that the wiper exhibits an average effective pore radius of less than 35 microns. 8. The disposable cellulosic wiper according to claim 1 , wherein the microfibers are selected and present in amounts such that the wiper exhibits an average effective pore radius of less than 30 microns. 9. The disposable cellulosic wiper according to claim 1 , wherein the microfibers are selected and present in amounts such that the wiper exhibits an average effective pore radius of from about 15 microns to less than 50 microns. 10. The disposable cellulosic wiper according to claim 1 , wherein the wiper comprises from about 30% by weight to about 75% by weight of the pulp-derived papermaking fibers and up to 70% by weight of the fibrillated regenerated independent cellulosic microfibers. 11. The disposable cellulosic wiper according to claim 1 , wherein the wiper comprises from about 35% by weight to about 70% by weight of the pulp-derived papermaking fibers and from about 30% by weight to about 65% by weight of the fibrillated regenerated independent cellulosic microfibers. 12. The disposable cellulosic wiper according to claim 1 , wherein the wiper comprises from about 40% by weight to about 60% by weight of the pulp-derived papermaking fibers and from about 40% by weight to about 60% by weight of the fibrillated regenerated independent cellulosic microfibers. 13. The disposable cellulosic wiper according to claim 1 , wherein the wiper contains kraft softwood fiber and the fibrillated regenerated independent cellulosic microfibers.
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- What does patent US9259131B2 cover?
- A disposable cellulosic wiper includes a percentage by weight of pulp-derived papermaking fibers, and a percentage by weight of regenerated independent cellulosic microfibers having a number average diameter of less than about 2 microns and a characteristic Canadian Standard Freeness (CSF) value of less than 175 ml. The microfibers are selected and present in amounts such that the wiper exhibit…
- Who is the assignee on this patent?
- Georgia Pacific Consumer Prod
- What technology area does this patent fall under?
- Primary CPC classification D21H21/18. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Tue Feb 16 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).