D21H17/56

CELLULOSE COMPOSITION
20210269981 · 2021-09-02 ·

The present invention relates to a microfibrillated cellulose composition comprising a microfibrillated cellulose originating from agricultural biomass, said microfibrillated cellulose composition comprising: 30 wt % cellulose, 1-15 wt % pectin, 8-25 wt % hemicellulose, 0-12 wt %, lignin, 0-15 wt % ash, and 0-8 wt % protein, based on dry solids content of said composition. The present invention further relates to its manufacture, and use in and manufacture of paper and paperboard products.

Composition and method of producing a creping paper and the creping paper thereof

The present disclosure provides for a composition and method of producing a creped paper and the creped paper products made using this method. The method includes treating the surface of a wet fibrous web and/or surface of a Yankee drum dryer or cylinder with compositions containing a combination of a polyaminosilicone/polyaminosilicone block copolymer/surfactant and optionally one or more creping aids.

Glyoxylated polyacrylamide polymer composition, its use and method for increasing the strength properties of paper, board or the like

A cationic glyoxylated polyacrylamide polymer composition having improved storage stability for use in manufacture of paper, board or the like, which aqueous composition includes a glyoxylated polyacrylamide polymer having a cationic charge density in a range of 0.8-1.8 meq/g of dry polymer in dry content of 5-15% and a buffering acid. The aqueous composition has pH in a range of 2.2-4.0 and a viscosity of less than 80 mPas measured at 25° C. by using a Brookfield viscometer after 30 days storage at 35° C. or after 60 days storage at 23° C.

METHOD FOR MANUFACTURING A FIBROUS WEB
20210189646 · 2021-06-24 · ·

A method for manufacturing a fibrous web, such as web of paper, board, tissue or the like is disclosed. The method includes obtaining at least one fibre suspension of lignocellulosic and/or cellulosic fibres and feeding the fibre suspension into an intermediate residence entity. The fibre suspension including bacterial endospores, is discharged out of the intermediate residence entity via an outlet after a residence time of at least 2 hours in the intermediate residence entity and after a time delay the fibre suspension is formed into a fibrous web. Bacterial endospores are sensitized by adding a germinant surfactant including a primary or secondary ammonium head group and a linear unsubstituted C12-alkyl tail, to the fibre suspension at an addition point located at a lower part of the intermediate residence entity or after the outlet of the intermediate residence entity, but before the formation of the fibrous web.

QUATERNARY CATIONIC SURFACTANTS AND POLYMERS FOR USE AS RELEASE AND COATING MODIFYING AGENTS IN CREPING AND TISSUE PAPERS

A composition is disclosed that may include an adhesive agent and a release aid. A Yankee dryer coating is also disclosed that may include a release aid. The release aid may include a cationic polymer salt that is a reaction product of a polyamine or a polyalkyleneimine and a substituted alkyl trialkyl quaternary ammonium salt. Also provided are methods of treating and creping paper.

QUATERNARY CATIONIC SURFACTANTS AND POLYMERS FOR USE AS RELEASE AND COATING MODIFYING AGENTS IN CREPING AND TISSUE PAPERS

A composition is disclosed that may include an adhesive agent and a release aid. A Yankee dryer coating is also disclosed that may include a release aid. The release aid may include a cationic polymer salt that is a reaction product of a polyamine or a polyalkyleneimine and a substituted alkyl trialkyl quaternary ammonium salt. Also provided are methods of treating and creping paper.

IMPREGNATED CORE PAPER FOR DECORATIVE LAMINATE
20230407572 · 2023-12-21 ·

An impregnated core paper for a decorative laminate, in particular high-pressure decorative laminate, obtained by impregnating a paper substrate with an aqueous impregnating composition including one or more resins selected from melamine-ether resins, acrylic resins, epoxy resins, and mixtures thereof.

IMPREGNATED CORE PAPER FOR DECORATIVE LAMINATE
20230407572 · 2023-12-21 ·

An impregnated core paper for a decorative laminate, in particular high-pressure decorative laminate, obtained by impregnating a paper substrate with an aqueous impregnating composition including one or more resins selected from melamine-ether resins, acrylic resins, epoxy resins, and mixtures thereof.

METHOD OF INCREASING EFFICIENCY OF CHEMICAL ADDITIVES IN A PAPERMARKING SYSTEMS

A method of increasing chemical efficiency of chemical additives in a papermaking system includes the steps of providing thick stock pulp comprising soluble lignin, process water, and at least about 2% by weight of cellulosic fiber based on total weight of thick stock pulp, and adding at least one organic polymer to the thick stock pulp to reduce the amount of soluble lignin therein. The organic polymer is chosen from cationic polymers, non-ionic polymers and combinations thereof.

Methods and Apparatus For High-Strength Fiber-Based Beverage Holders

Methods and apparatus for vacuum forming a beverage carrier yoke are described. The yoke comprises a number (e.g., four or six) collars interconnected by a web, and each collar exhibits dimensionsincluding a nominal diameter and a substantially uniform thicknessselected to improve strength and increase comfort. The yoke is produced using a slurry comprising a moisture barrier and a fiber base.