D21J5/00

FIBER-BASED PACKAGING CAPSULE AND A METHOD OF PRESS-FORMING THE SAME
20240384476 · 2024-11-21 · ·

A fiber capsule and a method of compression molding a fiber-based packaging capsule, includes the steps: forming a raw capsule of a loosely bonded fiber mat, which capsule has an opening, positioning the raw capsule of the loosely bonded fiber mat on the inside of a substantially rigid mol having inner surfaces defining the molded outer surfaces of the fiber-based packaging capsule, compression molding the loosely bonded fiber mat by the insertion of a pressurizable compression member through the opening, and pressurizing the pressing device at a temperature of 150-250 degrees C.?, preferably 160-200 degrees C., and at a pressure of 100-5000 bar, preferably 300-1200 bar. The compression molding may take place by reshaping the reshaping pressing device and pressing the inside of the capsule against the inner surfaces of the rigid mold so that a cohesive fiber-based packaging capsule is obtained.

Mouldable fibrous sheet and a production method thereof

The present invention relates to a web of fibrous cellulosic material derived from wood pulp, said web being suitable for three-dimensional moulding to form a packaging product, wherein the web comprises >40 wt % of soft wood chemical pulp and at least one strength enhancement agent, wherein the web has a grammage less than 400 g/m.sup.2, and wherein the cellulose fibers of said soft wood chemical pulp comprise a fiber curl of >9%.

Method for producing a cellulose product
12138830 · 2024-11-12 · ·

A method for producing a cellulose product from a multi-layer cellulose blank structure, wherein the method comprises the steps; forming the multi-layer cellulose blank structure from at least a first layer of dry-formed cellulose fibres and a second layer of a cellulose fibre web structure, through arranging the at least first layer and second layer in a superimposed relationship to each other and in the superimposed relationship arranging the at least first layer and second layer in contact with each other; arranging the multi-layer cellulose blank structure in a forming mould; heating the multi-layer cellulose blank structure to a forming temperature in the range of 100 C. to 300 C., and forming the cellulose product from the multi-layer cellulose blank structure in the forming mould, by pressing the heated multi-layer cellulose blank structure with an isostatic forming pressure of at least 1 MPa, preferably 4-20 MPa, wherein the multi-layer cellulose blank structure is shaped into a two-dimensional or three-dimensional fibre composite structure having a single-layer configuration.

FIBRE MOULDING PLANT FOR PRODUCING MOULDED PARTS FROM ENVIRONMENTALLY DEGRADABLE FIBRE MATERIAL
20240368844 · 2024-11-07 ·

The invention relates to a fiber-forming system (100) comprising at least a molding station (20) according to the invention, a preforming station (30) according to the invention and a hot-pressing station (40) according to the invention for producing a formed part (10) from environmentally-friendly-degradable fiber material (11) by means of a fiber-forming process executed in the fiber-forming system (100), wherein the fiber-forming system (100) is designed to enable an automatic change of tools (2, 3, 400, 40u) from the molding station (20), preforming station (30) and or hot-pressing station (40). The invention also relates to such a molding station (20), preforming station (30) and hot-pressing station (40) and a corresponding method (200) for automatically changing tools in the fiber-forming system (100).

FIBRE MOULDING PLANT FOR PRODUCING MOULDED PARTS FROM ENVIRONMENTALLY DEGRADABLE FIBRE MATERIAL
20240368844 · 2024-11-07 ·

The invention relates to a fiber-forming system (100) comprising at least a molding station (20) according to the invention, a preforming station (30) according to the invention and a hot-pressing station (40) according to the invention for producing a formed part (10) from environmentally-friendly-degradable fiber material (11) by means of a fiber-forming process executed in the fiber-forming system (100), wherein the fiber-forming system (100) is designed to enable an automatic change of tools (2, 3, 400, 40u) from the molding station (20), preforming station (30) and or hot-pressing station (40). The invention also relates to such a molding station (20), preforming station (30) and hot-pressing station (40) and a corresponding method (200) for automatically changing tools in the fiber-forming system (100).

METHOD FOR PRODUCING MOLDED PARTS FROM FIBER MATERIAL, WHICH FIBER MATERIAL IS DEGRADABLE IN AN ENVIRONMENTALLY FRIENDLY WAY
20240368843 · 2024-11-07 ·

The invention relates to a method (100) for manufacturing molded parts (10) from biodegradable fiber material (11) by means of a fiber molding process in a fiber molding system (20), comprising the following steps of providing (110) a pulp (1) as a liquid solution containing a biodegradable fiber material; contacting (120) a suction tool (2) with the pulp by placing it on or at least partially dipping it into the pulp, wherein the suction tool comprises a suction head (21) with a three-dimensionally shaped suction head suction side (21i), whose shape is adapted to a contour of the subsequent molded part; molding (130) the molded part by sucking the fiber material onto the suction head suction side (21i) by means of negative pressure in the suction tool; pre-pressing (140) the molded part in a pre-pressing station (3) with a pre-pressing pressure (VD) to reduce a proportion of the liquid solution in the molded part; hot-pressing (150) the pre-pressed molding at a hot-pressing pressure (HD) for finishing the molded part and for further reducing the proportion of the liquid solution in the molded part in a hot-pressing station (4); and outputting (160) the finished molded part (10). The invention also relates to such a fiber molding system for carrying out the above-mentioned method and to a molded part manufactured by means of such a fiber molding system or by means of such a method.

METHOD FOR PRODUCING MOLDED PARTS FROM FIBER MATERIAL, WHICH FIBER MATERIAL IS DEGRADABLE IN AN ENVIRONMENTALLY FRIENDLY WAY
20240368843 · 2024-11-07 ·

The invention relates to a method (100) for manufacturing molded parts (10) from biodegradable fiber material (11) by means of a fiber molding process in a fiber molding system (20), comprising the following steps of providing (110) a pulp (1) as a liquid solution containing a biodegradable fiber material; contacting (120) a suction tool (2) with the pulp by placing it on or at least partially dipping it into the pulp, wherein the suction tool comprises a suction head (21) with a three-dimensionally shaped suction head suction side (21i), whose shape is adapted to a contour of the subsequent molded part; molding (130) the molded part by sucking the fiber material onto the suction head suction side (21i) by means of negative pressure in the suction tool; pre-pressing (140) the molded part in a pre-pressing station (3) with a pre-pressing pressure (VD) to reduce a proportion of the liquid solution in the molded part; hot-pressing (150) the pre-pressed molding at a hot-pressing pressure (HD) for finishing the molded part and for further reducing the proportion of the liquid solution in the molded part in a hot-pressing station (4); and outputting (160) the finished molded part (10). The invention also relates to such a fiber molding system for carrying out the above-mentioned method and to a molded part manufactured by means of such a fiber molding system or by means of such a method.

Water Filter and Medium Therefor

A process for making a water filter having the steps of hydropulping particulate and fibrous ingredients including a quantity of fibrillated cellulose with water to create a suspension, circulating the suspension in a molding tank, submerging a mold having cavities in the circulating suspension, applying a vacuum to the cavities to draw the suspension into the cavities such that the water passes through the mold and the ingredients accumulate within the cavities to form a dewatered material, ejecting the dewatered material from the mold to create a molded object, drying and curing the molded object and capping an open end of the molded object to make a filter that flows under gravity and is naturally hydrophilic with a mean flow path (MFP) as determined by porometry of less than 5 micron and preferably less than 2 micron.

Composition and Method for Making a Water Filter by Accretion

A process for making a water filter having the steps of hydropulping particulate and fibrous ingredients including a quantity of fibrillated cellulose with water to create a suspension, circulating the suspension in a molding tank, submerging a mold having cavities in the circulating suspension, applying a vacuum to the cavities to draw the suspension into the cavities such that the water passes through the mold and the ingredients accumulate within the cavities to form a dewatered material, ejecting the dewatered material from the mold to create a molded object, drying and curing the molded object and capping an open end of the molded object to make a filter that flows under gravity and is naturally hydrophilic with a mean flow path (MFP) as determined by porometry of less than 5 micron and preferably less than 2 micron.

Composition and Method for Making a Water Filter by Accretion

A process for making a water filter having the steps of hydropulping particulate and fibrous ingredients including a quantity of fibrillated cellulose with water to create a suspension, circulating the suspension in a molding tank, submerging a mold having cavities in the circulating suspension, applying a vacuum to the cavities to draw the suspension into the cavities such that the water passes through the mold and the ingredients accumulate within the cavities to form a dewatered material, ejecting the dewatered material from the mold to create a molded object, drying and curing the molded object and capping an open end of the molded object to make a filter that flows under gravity and is naturally hydrophilic with a mean flow path (MFP) as determined by porometry of less than 5 micron and preferably less than 2 micron.