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US 2024/0263400 A1Published application
Use of an anionic additive to improve dry strength composition performance
AssigneeEcolab USA Inc.
InventorsDavid Steven JORDAN, Heqing HUANG, Mingli WEI
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Abstract
Compositions and colloidal particles are provided that may be used to improve a papermaking process. The compositions and colloidal particles may include a cationic polymer, an inorganic salt, and an anionic component. A papermaking process carried out using the presently disclosed compositions and colloidal particles may produce a paper product that has increased strength properties.
Claims20
An aqueous colloidal composition, comprising:
- a colloidal particle comprising a cationic polymer embedded within a colloidal hydroxide complex, wherein the colloidal particle comprises an anionic component.
A pulp fiber, comprising:
- a first layer adsorbed onto a surface of the pulp fiber, and
- a second layer disposed on the first layer, wherein the first layer comprises a colloidal particle comprising a cationic polymer embedded within a colloidal hydroxide complex, and wherein the second layer comprises an anionic component.
A method of improving a papermaking process, comprising:
- adding a colloidal particle to a papermaking machine, the colloidal particle comprising a cationic polymer embedded within a colloidal hydroxide complex, and
- adding an anionic component to the papermaking machine.
Dependencies are inferred from the claim text.