The present disclosure is drawn to sizing compositions, which can include 25 wt % to 80 wt % starch based on dry components, 15 wt % to 60 wt % cationic multivalent salt based on dry components, and an organic additive. The organic additive can be a water-swellable polymer having a weight average molecular weight ranging from 150,000 Mw to 1,000,000 Mw, a wax, or both the water-swellable polymer and the wax.

The present disclosure is drawn to sizing compositions, which can include 25 wt % to 80 wt % starch based on dry components, 15 wt % to 60 wt % cationic multivalent salt based on dry components, and an organic additive. The organic additive can be a water-swellable polymer having a weight average molecular weight ranging from 150,000 Mw to 1,000,000 Mw, a wax, or both the water-swellable polymer and the wax.

A water-dispersible composite structure, which comprises one or more layers, and a method of producing the same. At least a part of the layers is formed by a fibrous web or sheet containing 50-90 parts by weight of wood fibers and 10-90 parts by weight of annual or perennial plant fibers and/or 10-50 parts by weight of synthetic short-cut fibers, and 0.1-20% by weight of a binder, calculated from the weight of the fibers, and at least a part of the binder being a water-soluble polymer and another part a water dispersible binder, and the fibrous sheet or web being produced by wet forming. By means of the invention, the fibers of the composite structure can be recovered and recycled by equipment conventionally used in the paper and paperboard industry.

A water-dispersible composite structure, which comprises one or more layers, and a method of producing the same. At least a part of the layers is formed by a fibrous web or sheet containing 50-90 parts by weight of wood fibers and 10-90 parts by weight of annual or perennial plant fibers and/or 10-50 parts by weight of synthetic short-cut fibers, and 0.1-20% by weight of a binder, calculated from the weight of the fibers, and at least a part of the binder being a water-soluble polymer and another part a water dispersible binder, and the fibrous sheet or web being produced by wet forming. By means of the invention, the fibers of the composite structure can be recovered and recycled by equipment conventionally used in the paper and paperboard industry.

The invention relates to a method of transferring a tissue web with residual moisture to a Yankee cylinder and final removal of the dried tissue web from the Yankee cylinder using a doctor blade and collecting the dried web on a reel-up machine forming a tissue reel. The invention also relates to the Yankee adhesive composition per se. The method involves preparation of a water solution of a Yankee adhesive composition with less than 10% final solids content to be applied on the surface of the Yankee cylinder ahead of transferring the tissue web with residual moisture to the Yankee cylinder. The inventive method applies an aqueous PVOH solution with a very high molecular weight polyvinyl alcohol as a part of the solid content of the Yankee adhesive in an amount ranging from 20-65% of the final solids content of the Yankee adhesive. The aqueous PVOH solution with the very high molecular weight polyvinyl alcohol establish a viscosity ranging from 90 cP to 300 cP.

A biodegradable (repulpable, compostable and/or water soluble) zipper is provided for attachment to a biodegradable flexible package. The biodegradable zipper is formed using a water-soluble polymer that can be combined with a repulpable and/or compostable material, such as a plant-based cellulose material. The biodegradable zipper enables the biodegradable package to be opened and closed by the consumer, so that the consumer has the option to determine, change or manipulate the contents of the biodegradable flexible package.

A fluff pulp is provided, which comprises softwood fibers; and 3 to 35% by weight of hardwood fibers. A fluff is also provided, which comprises the fiberized or shredded fluff pulp. A core is also provided, which comprises the fluff and at least an SAP. Processes for making and using the fluff pulp, fluff, and core are provided, and products made thereby.

A fluff pulp is provided, which comprises softwood fibers; and 3 to 35% by weight of hardwood fibers. A fluff is also provided, which comprises the fiberized or shredded fluff pulp. A core is also provided, which comprises the fluff and at least an SAP. Processes for making and using the fluff pulp, fluff, and core are provided, and products made thereby.

The present disclosure is drawn to primer compositions, which can include a binder including polyvinyl alcohol, starch nanoparticles, and a polyurethane dispersion. The primer competitions can also include a cationic salt and water.

The present disclosure is drawn to primer compositions, which can include a binder including polyvinyl alcohol, starch nanoparticles, and a polyurethane dispersion. The primer competitions can also include a cationic salt and water.