169results 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.

There is provided a coated paperboard product comprising: - a paperboard substrate; and - a barrier coating, wherein the barrier coating comprises talc and a polyolefin-based binder and wherein the amount of talc in the barrier coating is 15-40 wt-% based on the dry weight of the barrier coating.

The current invention concerns a fire retardant composition for use in wood composite panels, either comprising a fire retardant agent or an intumescent formulation, whereby the pH of a 10% aqueous solution of said composition lies between 3.5 and 8.5. The present invention also provides for a specific use of the composition in fire retardant wood composite panels, the respective method for producing those panels, as well as the resulting wood composite panels themselves.

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.

The invention discloses an antibacterial and bacteriostatic bamboo-wood fiber-based food material packaging box and a preparation method thereof, and relates to the technical field of packaging materials. The packaging box is composed of a paper base layer and an antibacterial coating on the surface of the paper base layer. Wherein the paper base layer is made of mixed paper pulp; the antibacterial coating is obtained by coating the surface of the paper base layer with an antibacterial coating; the antibacterial coating is prepared from the following raw materials in parts by mass: 30 to 40 parts of deionized water, 2 to 2.4 parts of polyvinyl alcohol, 1.2 to 1.5 parts of glycerol, 6.7 to 7.3 parts of antibacterial particles, 0.1 to 0.4 part of rosmarinic acid and 0.5 to 0.8 part of modified silicon dioxide; the antibacterial particles are formed by mesoporous carrier materials loaded with wormwood essential oil. Due to the introduction of components such as the antibacterial particles and the modified silicon dioxide, the long-acting antibacterial, waterproof and fresh-keeping capacities of the bamboo-wood fiber-based food material packaging box are effectively improved. Therefore, the method has a wide application prospect.

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.

The invention relates to a method (2) for manufacturing a moulded fiber packaging unit (46, 52, 72, 92, 102, 202, 302, 402, 502, 602), the method comprising the steps of: - preparing (4) a mouldable fiber material (22); - forming (6) the mouldable fiber material in a mould into a primary packaging unit (30) with a compartment; - bringing (10) the primary packaging unit to a lamination temperature; - providing (13a) a laminate layer (58); - positioning (12) a lamination plug (54) with the laminate layer at least partly in the compartment of the primary packaging unit; and - attaching (16) the laminate layer to the fiber material of the packaging unit.

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).

The application discloses a paper-based material with uniform internal micropore distribution and a preparation method thereof. The preparation method comprises the steps of pulping, beating, preparing a pore-releasing agent solution, blending, swelling treatment and micropore drying treatment. The paper-based material provided by the application has uniform internal micropore distribution and good elasticity, and is a green and environment-friendly paper-based material which is renewable, degradable and recyclable. The paper-based material with uniform internal micropore distribution has more fine pores and higher energy dissipation characteristics compared with traditional paper-based materials. The microporous paper-based material takes long fibers as a skeleton, and short fibers are filled in the skeleton to form a three-dimensional microporous paper-based material with long and short fibers interwoven with each other, and can be used in the fields of building, packaging and noise reduction.

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.

The invention relates to a method for producing a folding box blank by means of dry fiber forming, the folding box body formed therefrom and a folding box produced by this method.

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.

The invention provides a fluff pulp board. The complete raising and defibering time of the fluff pulp board is not longer than 30 s, and the tightness is not higher than 0.6 g / cm < 3 >. The fluff pulp board is made of mixed fibers of needle-leaved wood fibers and bamboo fibers, and the mass percent of the needle-leaved wood fibers is 30%-60%; the average fiber length of the mixed fibers is larger than 2 mm, and the length weighted proportion of fine fibers is lower than 17%. The invention further provides a preparation method of the fluff pulp board. According to the technical scheme, the respective advantages of the coniferous wood and the bamboo wood are considered, the using requirements of downstream customers can be met, the using amount of the coniferous wood can be effectively reduced, the purchasing period of the coniferous wood is prolonged, and closed-loop cyclic utilization of bamboo wood resources in the natural world is achieved.

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.

The present invention is directed to gypsum panels containing a natural fiber material layer and a method of making such gypsum panels. The gypsum panel may include a gypsum core, a first facing material, and a second facing material. The natural fiber material layer may be one or more of the first facing material, the second facing material, or an additional layer. The natural fiber material layer comprises plant-derived fibers. The methods of the present invention are directed to making the aforementioned gypsum panels.

The utility model relates to the field of plate laminating machines, and discloses a multifunctional sound insulation plate laminating machine which comprises an operation frame, a first moving column is arranged on the inner wall of the top side of the operation frame, a second moving column is arranged on the bottom side of the first moving column, and fixing grooves are formed in the left side and the right side of the first moving column. Limiting grooves are formed in the inner walls of the ends, close to each other, of the first moving column and the second moving column, fixing blocks are arranged on the inner walls of the two fixing grooves, bolts are arranged on the inner walls of the two limiting grooves, a bottom plate is arranged on the bottom side of the operation frame, and a second bevel gear is rotationally connected to the inner wall of the bottom plate. The clamping device has a clamping effect, can ensure that materials are stably fixed in the laminating process, prevents the materials from displacing or misplacing in high-pressure and high-temperature environments, has an effect of conveniently replacing the pressing plate, and can be applied to solid surfaces of various materials, such as paper files, medium-density fiberboards and sectional materials.

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.

A method for improving the grease and oil resistance of a molded textile product is provided. The method includes introducing a composition including a synthetic polymer component and a cationic polymer component into a textile raw material and thermoforming the textile raw material. Molded textile products and the use of the composition for improving the grease and oil resistance of molded textile products are also provided. A method for producing a molded textile product is 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.