A cellulose nanofiber (CNF) powder of the present invention contains cellulose nanofibers, and a hydrophobic polymer that is chemically bonded to at least some of the —OH groups of the cellulose nanofibers. The CNF powder has the ability to be dispersed in water and to return to a powder form again when an aqueous dispersion of the CNF powder is dried. The distance between the fibers in the CNF powder in a dry state is 3 nm or more, and preferably 8 to 12 nm. Since the distance between the fibers in the conventional cellulose nanofibers is about 1 nm, the present invention reduces the Van der Waals force between the fibers (i.e., the force of attraction between the fibers) to one millionth of that of the conventional cellulose nanofibers. Thus, the present invention provides the CNF powder that can be used in a powder form, and that can also be reversibly changed between a powder state and a dispersed state in water, and a method for producing the CNF powder.

A sheet having dead-fold properties, wherein said sheet comprises cellulose fibers whereof at least 75%, preferably at least 90%, or more preferably at least 95% of said cellulose fibers have a fiber length of less than 1 mm, and wherein the tensile strength ratio (MD/CD) of the film is above 1.4, preferably higher than 1.6 and most preferably higher than 1.8.

A sheet having dead-fold properties, wherein said sheet comprises cellulose fibers whereof at least 75%, preferably at least 90%, or more preferably at least 95% of said cellulose fibers have a fiber length of less than 1 mm, and wherein the tensile strength ratio (MD/CD) of the film is above 1.4, preferably higher than 1.6 and most preferably higher than 1.8.

Described herein is a composition that can be used for treating media. The composition includes an organosilane treated water dispersible organic acid salt, a water soluble organic acid salt, a chelating agent, and an optical brightening agent.

Described herein is a composition that can be used for treating media. The composition includes an organosilane treated water dispersible organic acid salt, a water soluble organic acid salt, a chelating agent, and an optical brightening agent.

A method is disclosed that includes washing corn husks with an acid wash to degrade at least a portion of a non-cellulosic material present in the corn husks and from pulped corn husks, wherein the non-cellulosic material comprises lignan. The method further comprises forming a slurry, wherein the slurry comprises pulped corn husks; forming the slurry into a sheet; removing a volume of liquid from the sheet; and calendaring the sheet. The method further comprises coating the sheet and cutting the sheet into a plurality of sheets.

A method is disclosed that includes washing corn husks with an acid wash to degrade at least a portion of a non-cellulosic material present in the corn husks and from pulped corn husks, wherein the non-cellulosic material comprises lignan. The method further comprises forming a slurry, wherein the slurry comprises pulped corn husks; forming the slurry into a sheet; removing a volume of liquid from the sheet; and calendaring the sheet. The method further comprises coating the sheet and cutting the sheet into a plurality of sheets.

Disclosed is a packaging sheet for packaging of cheese, in particular white moulded soft cheese. The packaging sheet comprises: an inner surface and an outer surface of the packaging sheet, said inner surface being configured for facing the cheese in a packaged use position of the packaging sheet; a paper layer with a first surface and a second surface; a coloured layer provided on a first surface of the paper layer, an outer surface of the coloured layer establishing said outer surface of the packaging sheet; and a polymer layer with a water vapour transmission rate of at least 300 g/m.sup.2/24 hours at 38° C. and 90% atmospheric humidity. The polymer layer being coated on the second surface of the paper layer with a first surface of the polymer layer facing the paper layer and a second surface of the polymer layer establishing said inner surface of the packaging sheet.

A water-disintegrable sheet in which a base paper sheet is impregnated with an aqueous agent is provided. The base paper sheet has a weight per unit area of 30 to 150 gsm, and includes a water-soluble binder and cellulose nanofibers. The aqueous agent includes a cross-linking agent which cross-links with a water-soluble binder.

A water-disintegrable sheet in which a base paper sheet is impregnated with an aqueous agent is provided. The base paper sheet has a weight per unit area of 30 to 150 gsm, and includes a water-soluble binder and cellulose nanofibers. The aqueous agent includes a cross-linking agent which cross-links with a water-soluble binder.