Patent classifications
D21H21/26
TRANSPARENT PAPER OR CARDBOARD SUBSTRATE AND METHOD FOR ITS PRODUCTION
Method of printing at least one transparent area on a major surface of a non-coated paper or cardboard substrate (1), wherein an optical transmittance, as measured with spectrophotometry, through the substrate (1) at a printed transparent area (2) is at least 20% higher than through the substrate (1) at a non-printed area (3) of the same paper or cardboard 5 substrate (1) at a wavelength in the electromagnetic spectrum of wavelengths from 400 nm to 1000 nm that.
TRANSPARENT PAPER OR CARDBOARD SUBSTRATE AND METHOD FOR ITS PRODUCTION
Method of printing at least one transparent area on a major surface of a non-coated paper or cardboard substrate (1), wherein an optical transmittance, as measured with spectrophotometry, through the substrate (1) at a printed transparent area (2) is at least 20% higher than through the substrate (1) at a non-printed area (3) of the same paper or cardboard 5 substrate (1) at a wavelength in the electromagnetic spectrum of wavelengths from 400 nm to 1000 nm that.
MULTILAYER FILM COMPRISING HIGHLY REFINED CELLULOSE FIBERS
The present invention relates to a method for manufacturing a multilayer film comprising highly refined cellulose fibers, the method comprising the steps of: a) forming a first wet web by applying a first pulp suspension comprising highly refined cellulose fibers on a first wire; b) partially dewatering the first wet web to obtain a first partially dewatered web; c) forming a second wet web by applying a second pulp suspension comprising highly refined cellulose fibers on a second wire; d) partially dewatering the second wet web to obtain a second partially dewatered web; e) joining the first and second partially dewatered web to obtain a multilayer web; and f) further dewatering, and optionally drying, the multilayer web to obtain a multilayer film comprising highly refined cellulose fibers.
MULTILAYER FILM COMPRISING HIGHLY REFINED CELLULOSE FIBERS
The present invention relates to a method for manufacturing a multilayer film comprising highly refined cellulose fibers, the method comprising the steps of: a) forming a first wet web by applying a first pulp suspension comprising highly refined cellulose fibers on a first wire; b) partially dewatering the first wet web to obtain a first partially dewatered web; c) forming a second wet web by applying a second pulp suspension comprising highly refined cellulose fibers on a second wire; d) partially dewatering the second wet web to obtain a second partially dewatered web; e) joining the first and second partially dewatered web to obtain a multilayer web; and f) further dewatering, and optionally drying, the multilayer web to obtain a multilayer film comprising highly refined cellulose fibers.
FINE FIBROUS CELLULOSE, DISPERSED SOLUTION, SHEET, LAMINATED SHEET, LAMINATE, AND METHOD FOR PRODUCING FINE FIBROUS CELLULOSE
It is an object of the present invention to provide fine fibrous cellulose capable of enhancing transparency and suppressing coloring, when the fine fibrous cellulose are processed into a dispersed solution or a sheet. The present invention relates to fine fibrous cellulose, in which the amount of substituents introduced is less than 0.5 mmol/g and the fiber width is 1 to 10 nm. Moreover, the present invention relates to a dispersed solution and a sheet, each of which comprises fine fibrous cellulose. Furthermore, the present invention relates to a method for producing fine fibrous cellulose, comprising: (A) removing at least a part of substituents from fine fibrous cellulose with a fiber width of 1000 nm or less having the substituents, and (B) performing a uniform dispersion treatment on the resulting fine fibrous cellulose after completion of the (A).
FINE FIBROUS CELLULOSE, DISPERSED SOLUTION, SHEET, LAMINATED SHEET, LAMINATE, AND METHOD FOR PRODUCING FINE FIBROUS CELLULOSE
It is an object of the present invention to provide fine fibrous cellulose capable of enhancing transparency and suppressing coloring, when the fine fibrous cellulose are processed into a dispersed solution or a sheet. The present invention relates to fine fibrous cellulose, in which the amount of substituents introduced is less than 0.5 mmol/g and the fiber width is 1 to 10 nm. Moreover, the present invention relates to a dispersed solution and a sheet, each of which comprises fine fibrous cellulose. Furthermore, the present invention relates to a method for producing fine fibrous cellulose, comprising: (A) removing at least a part of substituents from fine fibrous cellulose with a fiber width of 1000 nm or less having the substituents, and (B) performing a uniform dispersion treatment on the resulting fine fibrous cellulose after completion of the (A).
Paper with high covering power
A paper or a decorative base paper for decorative coating materials contains pigment-resin particles that contain a carrier-free pigment and a cured resin and have a mean particle size from 1 to 30 m and delivers a high opacity.
Paper with high covering power
A paper or a decorative base paper for decorative coating materials contains pigment-resin particles that contain a carrier-free pigment and a cured resin and have a mean particle size from 1 to 30 m and delivers a high opacity.
METHOD FOR PROVIDING MOULDED AIR-LAID PULP
A method including applying a wetting agent to air-laid pulp to form an intermediate pulp and cold-pressing the intermediate pulp to form a moulded product. The pulp may be formed from a fibrous raw material. The wetting agent may include a functional additive such as a sol. A sol may include a solvent, an alkoxide, and optionally a catalyst. The air-laid pulp, intermediate pulp, and/or moulded product may be free or substantially free of thermoplastic polymers and/or hydrocarbon-based plastics. The moulded product may be a fibre-based bubble wrap. The fibre-based bubble wrap may be formed from reel-to-reel processes.
Fine fibrous cellulose, dispersed solution, sheet, laminated sheet, laminate, and method for producing fine fibrous cellulose
It is an object of the present invention to provide fine fibrous cellulose capable of enhancing transparency and suppressing coloring, when the fine fibrous cellulose are processed into a dispersed solution or a sheet. The present invention relates to fine fibrous cellulose, in which the amount of substituents introduced is less than 0.5 mmol/g and the fiber width is 1 to 10 nm. Moreover, the present invention relates to a dispersed solution and a sheet, each of which comprises fine fibrous cellulose. Furthermore, the present invention relates to a method for producing fine fibrous cellulose, comprising: (A) removing at least a part of substituents from fine fibrous cellulose with a fiber width of 1000 nm or less having the substituents, and (B) performing a uniform dispersion treatment on the resulting fine fibrous cellulose after completion of the (A).