B31B50/741

METHOD FOR MANUFACTURING A CELLULOSE PRODUCT, CELLULOSE PRODUCT FORMING APPARATUS AND CELLULOSE PRODUCT
20190070819 · 2019-03-07 ·

A method for manufacturing a cellulose product, comprising the steps: dry forming a cellulose blank in a dry forming unit; arranging the cellulose blank in a forming mould; heating the cellulose blank to a forming temperature in the range of 100? C. to 200? C.; and pressing the cellulose blank in the forming mould with a forming pressure of at least 1 MPa.

LASER INDUCED STRUCTURAL MODIFICATION OF PAPERBOARDS

A method for locally modifying a structure of a paperboard. A penetrating region (114) of the paperboard (110) is penetrated by laser radiation (102) such that moisture in the penetrating region (114) evaporates for locally modifying the structure of the penetrating region (114) e.g. by weakening the paperboard at the region and for deforming it there.

CUSTOMISABLE DISPOSABLE TABLEWARE
20180281333 · 2018-10-04 ·

Apparatus and methods for manufacture of customisable disposable tableware, such as paper plates, is provided. A digital printer is arranged to receive a feed of sheet material for printing and a cutter is arranged receive the sheet material exiting the printer. The cutter cuts the profile of discrete articles of tableware from the sheet material and a press is arranged to receive the discrete articles of tableware exiting the cutter. The press presses the articles of tableware to impart a three-dimensional shape to the articles. The printer, cutter and press may be provided as part of a continuous, in-line system. The printer may receive graphics to be printed from a server, for example to allow printing of small batch orders of bespoke paper plates in an efficient manner.

Method for manufacturing a cellulose product by a pressure moulding apparatus, pressure moulding apparatus and cellulose product
12134214 · 2024-11-05 · ·

The present invention relates to a method of manufacturing a cellulose product having a flat or non-flat product shape by a pressure moulding apparatus comprising a forming mould. The forming mould has a forming surface defining said product shape, The method comprises the steps of: arranging a cellulose blank containing less than 45 weight percent water in said forming mould; heating said cellulose blank to a forming temperature in the range of 100 C. to 200 C.; and pressing said cellulose blank by means of said forming mould with a forming pressure acting on the cellulose blank across said forming surface, said forming pressure being in the range of 1 MPa to 100 MPa.

Method for manufacturing a cellulose product, cellulose product forming apparatus and cellulose product
12134215 · 2024-11-05 · ·

A method for manufacturing a cellulose product, comprising the steps: dry forming a cellulose blank in a dry forming unit; arranging the cellulose blank in a forming mould; heating the cellulose blank to a forming temperature in the range of 100 C. to 200 C.; and pressing the cellulose blank in the forming mould with a forming pressure of at least 1 MPa.

Method and Apparatus For Making Skirtless Seals
20180056599 · 2018-03-01 · ·

A machine and method for making bags is described and includes a web traveling from an input section to a rotary drum, to an output section. The rotary drum includes at least one seal bar, having a single sealing zone, and a weakening zone disposed within the single sealing zone. The single sealing zone may be a heated perforator, includes a heating wire. The heating wire may be an NiCr wire stitched into the heater, and be disposed on a cap or on the seal bar. The weakening zone may create a line of weakness that is uniform or varies in intensity. The sealing zone may include temperature zones, cartridge heaters, cooling air, or heated air, or a source of ultrasonic, microwave or radiative energy.

Repulpable corrugated box and process for making same

A repulpable moisture resistant poultry box having a composite structure with a fluted medium, a top backing board secured to one side of the fluted medium and a bottom backing board secured to the other side of the fluted medium. The backing boards and the fluted medium are impregnated with a hydrogenated triglyceride. The backing boards each have an outer surface coated with an emulsion of hydrogenated triglyceride and styrene acrylic to provide moisture resistance repulpable and recyclable box.

Method for processing planar material webs made of a fiber-containing material
20240416612 · 2024-12-19 ·

A method for processing planar material webs made of a fiber-containing material is disclosed. The planar material webs are fed as material web portions or endless material web, for the production of three-dimensional products. Before a material web is pressed for shaping, the material web is preformed three-dimensionally by deforming the material web in at least one direction substantially without stretching or compressing.

Process for the pretreatment of fibrous material, pretreatment chamber and fiber molding plant
20240417928 · 2024-12-19 ·

The present disclosure relates to a process for the pretreatment of fibrous material in a production process for producing three-dimensional products, to a pretreatment chamber for the pretreatment of fibrous material, and to a fiber molding plant having at least one pretreatment chamber. By pretreating relatively dry fiber material, the shaping step in a manufacturing process can be significantly improved and the choice of product geometries can be increased.

Paper sheet fitting method and paper molded article

A method for fitting a paper sheet includes a water absorption step of causing a region of the paper sheet to absorb water, the region being at least a part of the paper sheet; a placing step of placing the region of the paper sheet between one set of first molding surfaces of a press mold; a molding step of molding the region of the paper sheet into a three-dimensional shape, by closing the press mold; a layering step of layering another paper sheet that is not caused to absorb water on the molded paper sheet, after opening the press mold; a fitting step of fitting the molded paper sheet and the another paper sheet by closing the press mold to mold a laminate into a three-dimensional shape; and a removal step of removing a molded article including a fitting portion, after opening the press mold.