88results about "Fibreboard" patented technology

Methods and apparatus for vacuum forming and subsequently applying topical coatings fiber-based food containers. The slurry includes one or more of an embedded moisture barrier, vapor barrier, and oil barrier, and the topical coating comprises one or more of a vapor barrier, a moisture barrier, an oil barrier, and an oxygen barrier. For food containers having deep sidewalls, a spray coating system includes a first nozzle for applying a full cone spray pattern to the bottom surface of the container, and a second nozzle for applying a hollow cone spray pattern to the inside surfaces of the side walls.

According to an example aspect of the present invention, there is provided a method comprising: in a mould, forming a multi-layered foamed fibrous structure from foamed fibrous compositions, wherein each of the foamed fibrous compositions comprises cellulosic fibres, water, air, and at least one foaming agent; dewatering the foamed fibrous structure; hot-pressing the dewatered structure, to obtain a moulded fibrous product, wherein said at least one foaming agent comprises at least one surface-active foaming agent and / or at least one polymeric foaming agent, and wherein at least one of the foamed fibrous compositions comprises a hydrophobic agent.

A process for producing a fiberboard from wood fibers and / or other lignocellulosic fibers using a wet process, in which water (9) is added to the fibers (7) to form a suspension (10) with a fiber content of 10 wt.% or less, in which the suspension (10) is pumped onto a long screen (11) and dewatered by gravity to form a fiber fleece cake (13), characterized in that the fiber fleece cake (13) is fed to a squeezer (14) and mechanically dewatered to a residual moisture content of less than 20 wt.% to form a fiber fleece (16), and the fiber fleece (16) is then transferred to a continuously operating hot press (18) and pressed there to form a fiberboard (19) under heat input.

Floor, Wall or Ceiling panel comprising a board (11) and a decorative top layer (12), wherein the decorative top layer (12) is provided on the board. The board (12) is based on MgO and MgChloride or wherein the board (12) is based on MgO and MgSulphate. The decorative layer (12) comprises a printed paper sheet (decor) (17) being treated with a resin, such as melamine formaldehyde (MF), polyurethane (PU), latex, acrylate dispersion or a combination thereof. The decorative top layer (12) is applied to the board by means of a direct pressure lamination (DPL) process.

A method for preparing a thermoplastic composition comprising grafted cellulose and optionally grafted hemicellulose is disclosed. The method includes providing a composition comprising cellulose and optionally hemicellulose, dissolving the cellulose and optionally hemicellulose of the composition at least partially, thereby obtaining a solution comprising solubilized cellulose and optionally solubilized hemicellulose, extruding the cellulose and optionally hemicellulose into a shape, such as a filament, a bead, a 3D object, or a molded article, and treating the shape with cyclic ester monomer, such that the cyclic ester monomer reacts with the cellulose and optionally hemicellulose contained in the shape, thereby at least partially grafting the cellulose and optionally hemicellulose with the cyclic ester monomer, thereby obtaining a thermoplastic composition.

Molded pulp containers with fused junctions and methods of making of same are provided. The present invention provides a pulp container, comprising a molded pulp body, wherein the body comprising a bottom and at least one side wall forming a cavity, wherein the at least one side wall comprising a upper rim, a neck, wherein the neck comprising a upper closure part and a lower rim, a fused junction, wherein a part of the upper rim of the at least one sidewall of the body and a part of the lower rim of the neck are aligned and fused together. The fused junction may be formed by ultrasonic welding.

This invention relates to a method for manufacturing paper or paperboard from a fiber suspension, the method comprising the following steps: a) injecting a P3 polymer into a cellulose fiber suspension; b) forming paper or paperboard; c) drying the paper or paperboard. Prior to step a), a P3 polymer is prepared from a water-soluble P1 polymer of at least one nonionic monomer selected from acrylamide, methacrylamide, N,N-dimethylacrylamide, and acrylonitrile. The P1 polymer is subjected to a Re1 reaction to obtain a P2 polymer, which is then subjected to a Re2 reaction to obtain the P3 polymer. The P3 polymer is then subjected to a Re2 reaction. The e1 reaction is injected into the fiber suspension within 24 hours of the start of the reaction; the -Re1 reaction comprises the preparation of a P2 polymer containing an isocyanate functional group by reacting (i) an alkali metal hydroxide and / or an alkaline earth metal hydroxide, (ii) an alkali metal hypohalide and / or an alkaline earth metal hypohalide and (iii) a P1 polymer for 10 seconds to 60 minutes; the -Re2 reaction comprises the preparation of a P3 polymer by reacting (iv) a compound containing at least one aldehyde functional group or a compound capable of generating at least one aldehyde functional group with (v) a P2 polymer containing an isocyanate functional group.

The present invention relates to a method for producing a barrier-coated substrate web (10; 25a) coated with a first layer (12a) of a reducing agent and a water-dispersible polymer and a second layer (13a) of reduced graphene oxide. The present invention further relates to a laminate packaging material (20a) comprising the barrier-coated substrate web (10), in particular intended for liquid carton food packaging, and to a liquid carton packaging container made of this laminate packaging material.

The invention relates to a forming station (20) for forming (210), a pre-forming station (30) for pre-forming (220), a hot-press station (40) for final forming (230), a formed component (10) made of an environmentally friendly degradable fiber material (11) in a fiber forming process in a fiber forming plant (100), and such a fiber forming plant (100) for producing formed pieces (10) having the above components (20, 30, 40) in a fiber forming process in a fiber forming plant (100) by a method (200).

A board including a plurality of layers having a different composition. At least one of the layers is based on MgO and MgChloride and / or at least one of said layers is based on MgO and MgSulphate. Methods for manufacturing such boards, and methods for manufacturing coated panels include such board.

This method for producing a cellulose molded body executes: a step for generating an aqueous dispersion containing natural cellulose fibers containing cellulose microfibers having a fiber width of 1 [mu] m or less at a concentration of 10% or less; a step in which the aqueous dispersion is press-molded while being dehydrated at a pressure of 30 kgf / cm or less, and a dehydrated body having a moisture content of 10 times or less of the weight of the cellulose is produced; and a step for drying the dehydrated body at a temperature of 100-150 DEG C (inclusive) and a pressure of 10 MPa or less, thereby producing a cellulose molded body in which the natural cellulose fibers have been amorphous. Amorphous formation of the natural cellulose fibers is specified by the following indexes: crystallinity calculated by Segal method, crystallinity calculated by curve fitting method, crystallinity index, first or second crystallinity calculated from infrared absorption spectrum, oxygen transmission rate, maximum moisture content, and the like.

Molded pulp containers with fused junctions and methods of making of same are provided. The present invention provides a pulp container, comprising a molded pulp body, wherein the body comprising a bottom and at least one side wall forming a cavity, wherein the at least one side wall comprising a upper rim, a neck, wherein the neck comprising a upper closure part and a lower rim, a fused junction, wherein a part of the upper rim of the at least one sidewall of the body and a part of the lower rim of the neck are aligned and fused together. The fused junction may be formed by ultrasonic welding.

A molded pulp product formed from the molding of a three-dimensional pulp slurry. The pulp slurry comprises a natural fiber composition of virgin fibers which have not been recycled and are derived from plant materials. The natural fiber composition includes hemp fibers which have been micronized to suitable length and combined with pulverized hemp shive to form a fibrous matrix. The molded pulp product is formed from a vacuum molding process, thermoforming process, custom air-burst molding process, or other molding process wherein the slurry is applied to a three-dimensional mold and a three-dimensional product is formed. The resulting packaging product is one hundred percent biodegradable.

There is provided a use of a pulp mixture for forming a container in a mould, which pulp mixture comprises: 65-90%, such as 70-84%, by dry weight of a first pulp having a Schopper-Riegler (SR) number of below 48, preferably below 40, more preferably below 30; and 10-35%, such as 16-30%, by dry weight of a second pulp having a Schopper-Riegler (SR) number of 60-90, preferably 70-90, more preferably 77-90. A pulp mixture and a method of producing a pulp mixture are also provided.

The present disclosure relates generally to a method for providing a barrier coating on a hollow container (100) containing a molded pulp. The method comprises providing a polymeric powder coating to at least a portion of the inner surface (105a) and outer surface of the container (100) prior to curing and / or melting the powder coating. The present disclosure also relates to a hollow container (100) formed by the method.

This invention relates to a production line for a composite core material of an energy storage vacuum insulation panel, comprising a pulping tank, a pulp mixing tank, a wet forming machine, a conveyor belt, and a paper press. The wet forming machine includes a tank, a universal forming mesh, and a vacuum dewatering box. The paper press is connected to the downstream end of the wet forming machine via the conveyor belt, which is equipped with a drying device. The pulp mixing tank is connected to a phase change microcapsule mixing tank via a transfer pipe, and the phase change microcapsule mixing tank is connected to the wet forming machine via a second feeding pipe. The wet forming machine is equipped with a linear module, a lifting cylinder, and a spreading hopper. A dedicated forming mesh is provided at the bottom of the spreading hopper. This invention allows phase change microcapsules to be mixed separately and placed individually at specific locations on the wet forming machine, preventing breakage of the microcapsules. Furthermore, the addition position of the microcapsules can be adjusted as needed to ensure that the phase change microcapsule layer in the core material is at a preset position.

The invention discloses montmorillonite modified PI fiber and cellulose composite insulation paper and a preparation method thereof. The preparation method comprises the following steps: step 1, preparing montmorillonite OMMT modified PI fibers; 2, stirring the montmorillonite OMMT modified PI fibers and cellulosic fibers to form stable mixed fiber paper pulp; 3, carrying out vacuum filtration on the mixed fiber paper pulp obtained in the step 2; step 4, carrying out pressure forming on the mixed fiber obtained in the step 3; and 5, carrying out hot press molding on the mixed fiber obtained in the step 4. The insulation paper is prepared from the montmorillonite OMMT modified PI fibers and the cellulosic fibers, the carrier migration path is effectively inhibited through the interface action of the OMMT and the PI fibers, the breakdown field strength of the insulation paper is improved, the layered structure of OMMT nanosheets and the molecular polarity of the PI fibers are regulated and controlled, the dielectric constant and the breakdown field strength are remarkably reduced, the relative dielectric constant can be 2.8 to the minimum, and the dielectric constant can be 2.8 to the minimum. And the maximum breakdown field strength is 68.76 kV / mm.

The present disclosure relates generally to a method for providing a non-uniform barrier coating on a hollow container (100) comprising a molded pulp and a hollow container. The method comprises depositing a polymer powder on the interior container surface of at least one predetermined portion (105a-105d) of the hollow container and, subsequently, treating the container with heat or irradiation. The present disclosure also relates to a hollow container (100) comprising a non-uniform polymer powder coating.

A method for temperature control in a molding tool is described. The molding tool has a tool base body and at least one cavity. The method includes producing molded parts from a fiber-containing material where a temperature of the molding tool is controlled in operation between a standby temperature and a maximum production temperature of a production temperature range. The standby temperature is lower than a minimum production temperature. The molding tool is kept at a base state by heat input where a molding process is brought from the base state into a production temperature range by an additional heat input. The production temperature range lies between the minimum production temperature and the maximum production temperature. A molding process is started after reaching the minimum process temperature in the molding tool and the additional heat input into the molding tool is maintained only during the molding process.

A water-based adhesive for the manufacture of laminated cellulosic boards includes monolayer graphene oxide as a glue enhancer. Laminated cellulosic boards may be obtained by providing cellulosic plies, applying a water-based adhesive, and contacting the surface of another cellulosic ply to the first cellulosic ply. A method for producing the water-based adhesive includes mixing starch, water and glue enhancer. The glue enhancer is a suspension of between 0.1 wt % and 0.001 wt % of monolayer graphene oxide in water.

According to the preparation method of the hydrophobic deep filtering paperboard, natural fibers are subjected to hydrophobic modification, so that the deep filtering paperboard is endowed with uniform hydrophobic performance, the interaction between the surface of the paperboard and a filter cake layer can be reduced, and a filter cake is convenient to peel off. The hydrophobic natural fiber can be uniformly dispersed in water without additional treatment on the hydrophobic fiber, so that the hydrophobic fiber does not need to be subjected to pre-hydrophilic treatment in the paperboard preparation process, the process is simple, and the cost is low. The low-melting-point fibers are used as a binder, surface fibers of the deep filtering paperboard can be reinforced, when the deep filtering paperboard scrapes a filter cake, the surface fibers cannot fall off, the deep filtering paperboard has great wet strength and bending strength, and compared with a traditional deep filtering paperboard, the deep filtering paperboard has the advantages that the surface fibers are not prone to falling off; and when a filter cake is scraped, the filter cake can be prevented from being damaged due to bending and twisting in a wet state. The filter press disclosed by the invention is low in cost and convenient to use, and has a relatively high practical value.

A packaging biological material and to a method for manufacturing thereof uses residues of annual agricultural plants, where said material may be used for packaging industrial, food, cosmetic, and other various goods, as well as a building material. The packaging material may include cellulose fibers, and it further comprises clay, calcium carbonate (CaCO3), natural glycerol, natural gelatin, at least one additional natural polymer and water. A method for manufacturing a packaging biomaterial includes grinding a fibrous cellulose material comprising corn tops, boiling the ground fibrous cellulose material together with additional components, forming a resultant mass and drying the biomaterial, while sunflower straw and tops are further used as the fibrous cellulose material, and clay, calcium carbonate (C-CaCO3), natural glycerol, natural gelatin, at least one additional natural polymer and water are used as the additional components.

There is provided a method for producing a moulded fiber based article. There is also provided a moulded fiber based article.

1.A capsule (100) for preparing a beverage in a beverage production machine, wherein the capsule (100) comprises: - a capsule body (200) with a sidewall (210) delimiting a chamber (250) for containing a substance (500) for the preparation of the beverage, and a rim portion (211); - an injection wall (220) for injecting a fluid in the chamber (250) for preparing the beverage upon interaction of the fluid with the substance (500); and - a delivery wall (300) being connected to the capsule body (200) to close the chamber (250), wherein the delivery wall (300) comprises in a layered manner: o a retention layer (320) being adapted to be opened upon interaction with opening elements under the effect of rising pressure of the fluid being injected into the capsule (100), o a filter layer (310) for filtering out particles from the prepared beverage dispensed via the delivery wall (300), the filter layer (310) is provided opposite to the chamber (250) with respect to the retention layer (320), o a moisture and / or oxygen barrier layer having a barrier function against liquid and / or gaseous substances entering and / or leaving the chamber (250), and o a first adhesive layer covering, at least partially, the delivery wall (300), preferably the retention layer (320) on the side of the delivery wall (300), preferably the retention layer (320) that is oriented towards the chamber (250) for joining the delivery wall (300) to the capsule body (200), preferably to the rim portion (211); and wherein each of the filter layer (310), the retention layer (320), the barrier layer and the first adhesive layer is made of biodegradable material. The invention also relates to the use of said capsule.

This invention provides a novel natural fiber molded article and a method for producing the same. [Solution] The present invention provides a method for producing a natural fiber molded article, comprising obtaining a slurry containing natural fibers and a liquid medium, and removing the liquid by freeze-drying the slurry. The natural fiber molded article of the present invention has a nonwoven fabric-like surface and a density of 0.50 g / cm³. 3 The following, and with a thickness of 5 mm or more:

Example approaches are disclosed for manufacturing composite or fiber reinforcement preforms. Liquid, fibrous, binding and potentially other materials are mixed into a composite mixture slurry in a slurry container. A porous tool having a specific porous outer surface portion approximating a specific exterior surface portion of a spatial shape of a final product is immersed in the slurry container. A suction pressure is applied to draw a portion of the fibrous material intermixed with a corresponding portion of the binding material in the slurry onto the specific outer surface portion. The porous tool attached with the wet preform is removed from the slurry container. The wet preform is partially dried into a partially dried preform attached to the porous tool. The partially dried preform is dried, solidified and / or consolidated and / or injected with a resin and cured into a solid composite preform of the spatial shape of the final product.

The present invention relates to the field of paper and paper production and relates to paper based on microbial cellulose having properties similar to paper made from vegetal cellulose. It also relates to a process for producing such paper. The paper of the invention can advantageously be used in the same way as paper based on vegetal cellulose, in particular as a packaging material or as a writing / printing support.

[Problem] To provide a novel natural fiber molded body and a method for manufacturing same. [Solution] A method for manufacturing a natural fiber molded body according to the present invention involves: obtaining a slurry that contains natural fibers and a liquid medium; and freeze-drying the slurry to remove the liquid. In addition, the natural fiber molded body according to the present invention has a nonwoven fabric-like surface and has a density of 0.50 g / cm3 or less and a thickness of 5 mm or more.