Method of cleaning residue from a surface using a high efficiency disposable cellulosic wiper
US-2015144158-A1 · May 28, 2015 · US
High efficiency disposable cellulosic wiper
US9282871B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9282871-B2 |
| Application number | US-201514596280-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 14, 2015 |
| Priority date | Mar 21, 2006 |
| Publication date | Mar 15, 2016 |
| Grant date | Mar 15, 2016 |
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- Title
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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 a relative wicking ratio of at least 1.5.
First claim
Opening claim text (preview).
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 a relative wicking ratio of at least 1.5. 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 wiper exhibits a relative wicking ratio of at least 2. 7. The disposable cellulosic wiper according to claim 1 , wherein the wiper exhibits a relative wicking ratio of at least 3. 8. The disposable cellulosic wiper according to claim 1 , wherein the wiper exhibits a relative wicking ratio of from 1.5 to about 5. 9. 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. 10. 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. 11. 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. 12. The disposable cellulosic wiper according to claim 1 , wherein the wiper contains kraft softwood fibers and the fibrillated regenerated independent cellulosic microfibers. 13. The disposable cellulosic wiper according to claim 1 , wherein the fibrillated regenerated independent cellulosic microfibers are prepared from fiber spun from a cellulosic dope comprising cellulose dissolved in a tertiary amine N-oxide. 14. The disposable cellulosic wiper according to claim 1 , wherein the fibrillated regenerated independent cellulosic microfibers are prepared from fiber spun from a cellulosic dope comprising cellulose dissolved in an ionic liquid.
Assignees
Inventors
Classifications
from regenerated cellulose · CPC title
Chemically or biochemically modified fibres · CPC title
Cellulosic · CPC title
Kraft or sulfate pulp · CPC title
Tissue paper; Absorbent paper (D21H21/22, D21H27/02, D21H27/20 take precedence; toilet paper A47K10/00; absorbent pads for physiological fluids A61L15/16; making on paper-making machines D21F11/00) · CPC title
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- What does patent US9282871B2 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 Mar 15 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).