Method of using aldehyde-functionalized polymers to increase papermachine performance and enhance sizing
US-9145646-B2 · Sep 29, 2015 · US
Tissue dust reduction
US10648133B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10648133-B2 |
| Application number | US-201715594835-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 15, 2017 |
| Priority date | May 13, 2016 |
| Publication date | May 12, 2020 |
| Grant date | May 12, 2020 |
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- Title
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Abstract
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Methods of reducing paper dusting in a papermaking process, and a low dusting tissue having increased strength are provided. Application of a polymer comprising at least one amine-containing vinylic or allylic monomer to at least one surface of a paper web during the papermaking process reduces the dusting tendency of the paper, and increases both the wet and dry strength of the paper product.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for reducing dust in a tissue making process comprising: applying a polymer comprising at least one amine-containing vinylic or allylic monomer to the surface of a tissue web, wherein the polymer does not comprise an aldehyde-functionalized polymer. 2. The method of claim 1 , wherein the polymer is applied by spraying onto a surface of the tissue web. 3. The method of claim 2 , wherein the polymer is applied by spraying onto the surface of the tissue web utilizing a spray boom. 4. The method of claim 1 , wherein the polymer is applied prior to drying the tissue web. 5. The method of claim 1 , wherein the tissue web is at least partially dried after the polymer is applied to the tissue web. 6. The method of claim 1 , wherein the tissue web has a wet web consistency of from about 5% to about 40%. 7. The method of claim 1 , wherein the polymer is a diallylamine acrylamide copolymer. 8. The method of claim 1 , wherein the polymer is applied in combination with a diallylamine homopolymer. 9. The method of claim 1 , wherein the polymer comprises about 0.1 mol % to about 20 mol % diallylamine monomer. 10. The method of claim 1 , wherein the polymer has an average molecular weight of from about 200,000 Daltons to about 1,500,000 Daltons. 11. The method of claim 1 , wherein the polymer is applied to the surface of the tissue web as a solution having a concentration of from about 0.01% to about 10% by weight of the polymer based on the weight of the solution.
Assignees
Inventors
Classifications
Acrylamide; Methacrylamide · CPC title
performed by spraying · CPC title
Polymerisation in bulk · CPC title
Agents for preventing deposition on the paper mill equipment, e.g. pitch or slime control (removal of fats, resins, pitch, or waxes D21C9/08) · CPC title
Reinforcing agents · CPC title
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- What does patent US10648133B2 cover?
- Methods of reducing paper dusting in a papermaking process, and a low dusting tissue having increased strength are provided. Application of a polymer comprising at least one amine-containing vinylic or allylic monomer to at least one surface of a paper web during the papermaking process reduces the dusting tendency of the paper, and increases both the wet and dry strength of the paper product.
- Who is the assignee on this patent?
- Ecolab Usa Inc
- What technology area does this patent fall under?
- Primary CPC classification D21H21/20. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Tue May 12 2020 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).