32results about "Foam addition" patented technology

The present invention relates to a solid cellulose foam object comprising a first solid cellulose foam portion attached to a second solid cellulose foam portion. optionally at least one additional solid cellulose foam portion may be attached to the first and / or the second solid cellulose foam portion. The invention also relates to a method for producing said solid cellulose foam object.

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 a foaming agent; dewatering the foamed fibrous structure; hot-pressing the dewatered structure, to obtain a moulded multi-layered fibrous product, in which method at least two different foaming agents are applied, wherein said at least two different foaming agents are selected, independently from each other, from the group of surface-active foaming agents and polymeric foaming agents.

The present invention relates to surface-foamed paper and paperboard coated with a thermosensitive micro-foaming agent and, more specifically, to surface-foamed paper and paperboard that exhibit excellent shock absorption and buffering performance by coating the surface of paper with a foaming mixture comprising a micro-foaming agent and starch, and then foaming the micro-foaming agent through high-temperature drying. In addition, the present invention relates to eco-friendly surface-foamed paper and paperboard using a foam material that can volumetrically expand on the surface of paper and paperboard.

A method of manufacturing an article at least partially made of cellulose fibers comprises inserting a cellulose pulp comprising cellulose fibers and water into a mixing cavity; applying a high shear mixing action to the cellulose pulp using a high-shear mixer, such that a foam blend comprising cellulose fibers, water and air bubbles is created; inserting the foam blend into a mold cavity; and molding the article by heating the foam blend contained within the mold cavity.

A method for preparing a product comprising water repellent low-density material, the method comprising providing a product comprising dewatered foamed cellulose fiber foam, providing an aqueous dispersion of mycelium, applying the aqueous dispersion of mycelium on the surface of the dewatered foamed cellulose fiber foam to obtain a treated foamed cellulose fiber foam, incubating the treated foamed cellulose fiber foam for a time period enabling the mycelium to grow into the treated foamed cellulose fiber foam to obtain a composite product comprising mycelium filament network incorporated in the cellulose fiber foam, and drying the composite product at elevated temperature to obtain the product comprising water repellent low-density material. A product comprising water repellent cellulose fiber foam comprising mycelium filament network incorporated in the cellulose fiber foam, wherein the concentration and / or density of the mycelium filament network in the cellulose fiber foam is higher near the surface of the cellulose fiber foam compared to the interior of the cellulose fiber foam. Use of cellulose fiber foam for preparing a product comprising water repellent cellulose fiber foam.

The present invention relates to a decorative panel, in particular a floor, ceiling, or wall panel, and a method for manufacturing such a decorative panel. The panel according to the present invention comprises at least one foam layer having an upper side and a lower side, and at least one decorative solid layer attached directly or indirectly to the upper side of the foam layer, wherein both the foam layer and the decorative solid layer are wood-based materials. The present invention also relates to a floor covering made up of a plurality of such panels.

A method and system for recovering organic compounds is disclosed. In one embodiment, the methods and systems may be used to recover surfactants in industrial processes. The aqueous stream is fed to a filtration device that produces a stream containing concentrated organic compounds.

The present invention relates to a method for producing a solid cellulose foam. The method includes depositing a first wet cellulose foam to obtain a first wet foam deposit, followed by providing score lines at least partially through the height of the first wet foam deposit to form pillars of wet cellulose foam. During drying of the first wet foam deposit, gaps are formed along the score lines, separating the pillars. In a subsequent deposition step, a second wet cellulose foam is deposited to obtain a subsequent wet foam deposit that fills the gaps between the pillars. After drying, a solid cellulose foam is obtained that includes the pillars of the first solid foam deposit and the subsequent solid cellulose foam deposit that fills the gaps between the pillars.

The package insert (10) includes a number of cellulose-based airlaid or solid foam substrates (20, 20A, 20B, 20C) having first and second major sides (22, 22A, 22B, 22C; 24, 24A, 24B, 24C), respectively. The package insert (10) also includes a first paper-based sheet (30) attached to the first major sides (22, 22A, 22B, 22C) and a second paper-based sheet (40) attached to the second major sides (24, 24A, 24B, 24C). The opposing edges (26, 26A, 26B, 28, 28B, 28C) of the continuous cellulose-based airlaid or solid foam substrates (20, 20A, 20B, 20C) are beveled edges (26, 26A, 26B, 28, 28B, 28C) and form an angle (α) of less than 90° between them. At least one hinge section (50, 50A, 50B) is interposed between the beveled edges (26, 26A, 26B, 28, 28B, 28C) of the continuous cellulose-based airlaid or solid foam substrates (20, 20A, 20B, 20C). The package insert (10) is foldable at the hinge section (50, 50A, 50B) and can be positioned within a package (80) to protect the packaged goods. The present invention also relates to a method for making the package insert (10).

The present disclosure relates to a method of treating an aqueous foamable medium, such as a process stream of a pulping and paper mill, comprising contacting the aqueous process stream with a defoaming agent comprising: a) at least one C12 to C40 Guerbet alcohol; and / or b) at least one polyol ester.

A packaging insert (10) comprises multiple cellulose-based air-laid or solid foam substrates (20, 20A, 20B, 20C) having respective first and second main sides (22, 22A, 22B, 22C, 24, 24A, 24B, 24C). The packaging insert (10) also comprises a first paper-based sheet (30) attached to the first main sides (22, 22A, 22B, 22C) and a second paper-based sheet (40) attached to the second main sides (24, 24A, 24B, 24C). Edges (26, 26A, 26B, 28, 28B, 28C) of consecutive cellulose-based air-laid or solid foam substrates (20, 20A, 20B, 20C) facing each other are beveled edges (26, 26A, 26B, 28, 28B, 28C) and form an angle (a) between each other that is less than 90°. At least one hinge section (50, 50A, 50B) is interposed between the beveled edges (26, 26A, 26B, 28, 28B 28C) of the consecutive cellulose-based air-laid or solid foam substrates (20, 20A, 20B, 20C). The packaging insert (10) is foldable in the hinge section(s) (50, 50A, 50B) and can be positioned within a packaging (80) to protect packaged goods. The invention also relates to a method of producing a packaging insert (10).

Foam formulations and methods for manufacturing paper products using foam formulations are provided. An exemplary method includes producing a foam of a gas, water, a dry strength agent, and a combination of foaming agents including an anionic sulfated / sulfonated surfactant and a polysorbate-type nonionic surfactant; applying the foam to a web; and processing the web to form the product.

The present invention relates to a foamed paper for oil adsorption comprising a heat-responsive micro-foaming agent and a manufacturing method therefor and, more specifically, to a foamed paper for oil adsorption comprising a heat-sensitive micro-foaming agent and a manufacturing method thereof, wherein the heat-responsive micro-foaming agent exhibits excellent oil absorption performance and buoyancy performance at the same time by adding a micro-foaming agent and a retention enhancer to cellulose fibers containing lignin during a stock preparation stage of the manufacturing process and then, foaming the micro-foaming agent in a high-temperature drying process. In addition, the present invention relates to a foamed paper for oil adsorption and a manufacturing method thereof, wherein the foamed paper comprises a heat-responsive micro-foaming agent that can be used as a biodegradable adsorbent capable of efficiently absorbing oil in water and seawater in the event of an oil spill accident.

This invention relates to multilayer materials for press molding, a delivery system, and the resulting textile products. A recovery method is also disclosed.

The present disclosure is directed to a method of treatment of an aqueous foamable medium, such as a process stream of a pulp and paper mill, the method comprising contacting the aqueous process stream with a defoaming agent comprising: a) at least one C12 to C40 Guerbet alcohol; and / or, b) at least one polyol ester.

The present invention is directed to a method of making at least a portion of a garment that includes at least one three-dimensional contour. The disclosed method includes providing a fiber and solvent mixture that includes fibers and a solvent capable to causing a plurality of covalent bonds to be created between the fibers. In many embodiments, the plurality of covalent bonds form when a catalyst, such as heat, is provided to the fiber and solvent mixture. The process can be performed using, for example, either a 3D printer or mold form. The fibers used can be natural, synthetic, or a blend of natural and / or synthetic fibers. The solvent preferably includes ionic salts in water.

A system comprising a pulper configured to (i) accept surfactant, a liquid and fiber stock and (ii) generate a foam that suspends the fiber stock, wherein the foam has a half-life; a headbox configured to receive the foam-suspended fiber stock from the pulper and displace the foam-suspended fiber stock onto a forming wire, wherein a time it takes the foam-suspended fiber stock to move from the pulper to the headbox is less than the half-life; and a foam return device that removes at least some of the foam from the forming wire and returns the at least some of the foam to the pulper.

The present invention relates to an insulating material (10) comprising a wood-derived material (11) and a flame retardant (13). The wood-derived material is present in the insulating material as an unseparated fiber fraction (14) and a separated fiber fraction (15), and the insulating material is a combination of the fraction and the flame retardant (28) that does not contain a separate polymeric component. Additionally, the present invention also provides methods for producing insulating elements, layer structures, constructions, and insulating materials.

The present invention relates to a method of forming at least one compressed region in a solid cellulose foam, said method comprising the step of: a) Providing a solid cellulose foam; b) Providing at least one cutting line of a predetermined depth of cut into at least one surface of said solid cellulose foam, whereby the at last one cutting line defining at least one pattern on said at least one surface; and c) Pressing at least one pressing tool into said at leas one pattern of said at least one surface of said cellulose foam thereby forming at le st one compressed region. The invention further relates to a solid cellulose foam product formed by the method.

The present invention relates to foamed paper, paperboard, both comprising a thermo-responsive micro-foaming agent, and a method for manufacturing same, and more specifically, to foamed paper, paperboard, and a method for manufacturing same, wherein a micro-foaming agent and a retention enhancer are added to cellulose fibers during the stock preparation step of the papermaking process and then micro-foaming agent is foamed during a high-temperature drying process, whereby the foamed paper and paperboard exhibit excellent impact absorption and cushioning performance. In addition, the present invention relates to an eco-friendly foamed paper and paperboard, and a method for manufacturing same, in which a foamable material capable of expanding in volume is incorporated within a cellulose fiber-based paper network.

The present document is directed to a method for producing the outer ply of a paperboard product comprising at least two plies by foam-forming the outer ply. The present document also discloses a paperboard product wherein the outer ply has been foam-formed and has a density of at least 700 kg / m3, and a furnish for foam-forming an outer ply of such a paperboard product.

A one-ply absorbent article comprising a nonwoven first layer, a nonwoven third layer, a nonwoven second layer between the first layer and the third layer, and wherein the one-ply absorbent article has a first absorbency measure at a first delamination state and a second absorbency measure at a second delamination state, wherein the first absorbency measure is less than the second absorbency measure and the first delamination state is less than the second delamination state.

The present invention relates to a method for producing a solid cellulose foam, the method comprising providing individual units of a first cellulose foam on a surface to obtain a first foam stack, the distance between adjacent individual units being in the range of 2 to 20 mm, depositing a second wet cellulose foam between the individual units to obtain a subsequent foam stack, and drying the second wet cellulose foam in the subsequent foam stack to obtain a solid cellulose foam in which the individual units of cellulose foam are embedded in a cellulose foam matrix. The present invention also relates to a solid cellulose foam comprising individual units of cellulose foam embedded in a cellulose foam matrix, the distance between adjacent individual units being in the range of 2 to 20 mm.

The present disclosure relates to a method (100) for producing 3D fiber structures, the method (100) comprising the steps of: feeding (101) a foamed fiber furnish (2) to an apparatus (1), the apparatus (1) comprising a liquid-permeable substrate means (3) having a first side (4) and an opposing second side (5), a dispenser (6) having an outlet (7), wherein at least one of 5 the dispenser (6) and the substrate means (3) travel with respect to the other. Further comprising the step of dispensing (102), by means of the dispenser (6), a layer (2) of foamed fiber furnish to the first side of said liquid-permeable substrate means (3), wherein the apparatus (1) further comprises at least a reservoir (8) and a first vacuum unit (9) associated with the second side (5) of the liquid-permeable substrate means (3) so to collect fluid 10 discharge from the dispensed layer (2) of foamed fiber furnish. Further comprising the step of applying (103) at least a first dewatering pressure to at least a part of the second side (5) of said substrate means (3).

The present invention relates to a foam composition comprising cellulose fibres, a water-soluble thickener, and surfactants. The foam composition can be used for preparing a foam that can be dried without constraints to form three-dimensional objects.