A method for manufacturing a paperboard structure includes passing a paperboard substrate through a hot-hard calender to yield a calendered paperboard substrate, the hot-hard calender including a nip defined by a thermo-roller and a counter roller, wherein a contact surface of the thermo-roller is heated to an elevated temperature. The method then includes applying a basecoat to the calendered paperboard substrate to yield a basecoated paperboard substrate, the basecoat includes a basecoat binder and a basecoat pigment blend. The method further includes applying a topcoat to the basecoated paperboard substrate.

In general, the present invention is directed to a process for producing multi-ply tissue products from a single ply tissue web and the resulting multi-ply products, which have good softness and strength characteristics. The process of the present invention generally involves producing a first single ply tissue web and then splitting the web into two separate single ply tissue webs that can be converted into a multi-ply web. In certain preferred embodiments the single ply web may be manufactured such that when it is split into two separate webs the two webs are substantially identical.

In general, the present invention is directed to a process for producing multi-ply tissue products from a single ply tissue web and the resulting multi-ply products, which have good softness and strength characteristics. The process of the present invention generally involves producing a first single ply tissue web and then splitting the web into two separate single ply tissue webs that can be converted into a multi-ply web. In certain preferred embodiments the single ply web may be manufactured such that when it is split into two separate webs the two webs are substantially identical.

A method for manufacturing a paperboard structure includes passing a paperboard substrate through a hot-hard calender to yield a calendered paperboard substrate, the hot-hard calender including a nip defined by a thermo-roller and a counter roller, wherein a contact surface of the thermo-roller is heated to an elevated temperature. The method then includes applying a basecoat to the calendered paperboard substrate to yield a basecoated paperboard substrate, the basecoat includes a basecoat binder and a basecoat pigment blend. The method further includes applying a topcoat to the basecoated paperboard substrate.

A method of manufacturing a paper sheet with improved softness and the paper sheet are provided. A method of manufacturing a paper sheet 101 according to the present invention includes a supply step of supplying a continuous base sheet 1, 1A, or 1B, and a plurality of times of pressing steps of applying, to a surface of the base sheet 1, 1A, or 1B, pressing force having a normal-direction component of the surface.

The present invention relates to a parchmentized fibrous support containing parchmentizable synthetic fibers parchmentized with sulfuric acid, the process for making such a support and the use thereof.

The present invention relates to a parchmentized fibrous support containing parchmentizable synthetic fibers parchmentized with sulfuric acid, the process for making such a support and the use thereof.

The method of the invention relates to a method of manufacturing a fibrous, oxygen barrier film by casting a suspension comprising microfibrillated cellulose onto a non-porous substrate in a number of subsequent steps with intermediate drying. The invention enables an efficient method to manufacture an MFC film by casting technology without the problems of cracks or voids formed in the film. By applying the MFC in several layers, with in-between drying, the distance the water has to diffuse through is shorter, whereby the evaporation is more efficient and the film properties are not negatively affected by the drying.

An apparatus for producing a web of fibrous material includes a roll having incisions with a depth of 0.01-2.00 mm, a width of 0.01-2.00 mm, and a pitch 0.01-10.00 mm, and rotated at a peripheral velocity v.sub.1 equal to the velocity of an upstream apparatus unit; a belt stretched between transmission rollers that advances at a velocity v.sub.2 less than v.sub.1, wherein v.sub.1/v.sub.2 lies between 1.05 and 1.40; a presser roller rotating at a peripheral velocity v.sub.2, associated with a presser system acting to press the belt against the metal roll with a pressure of 1-200 kg per centimeter; and a system that feeds a sheet of pliable fibrous material between the belt and the roll, the belt having a longitudinal elongation of no more than 5%, dimensional stability along its entire length, a thickness of 1-10 cm, and a hardness 24-70° Shore A.

A method for manufacturing a paperboard structure includes passing a paperboard substrate through a hot-hard calender to yield a calendered paperboard substrate, the hot-hard calender including a nip defined by a thermo-roller and a counter roller, wherein a contact surface of the thermo-roller is heated to an elevated temperature. The method then includes applying a basecoat to the calendered paperboard substrate to yield a basecoated paperboard substrate, the basecoat includes a basecoat binder and a basecoat pigment blend. The method further includes applying a topcoat to the basecoated paperboard substrate.