Abstract: A biodegradable food service item is disclosed, which includes a biodegradable substrate having at least one food contact surface. This substrate is made of cellulosic fibers. The food service item also includes a coating applied over the at least one food contact surface. This coating is made up of from about 25 to about 60 weight percent of at least one biodegradable polymer, such as polyhydroxyalkanoates. A method for making the biodegradable food service item is also disclosed.

Abstract: 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 example polyvinyl alcohol, sugar alcohol, citric acid, and cellulose nanofibrils.

Abstract: The present invention discloses a pulp molding negative angle container comprising a conical pulp container which is open on the upper end, wherein: the inner wall of the open end of the pulp container has a separation space which is inclined downwards and set outwards; a protruding shoulder is provided on the outer wall of the open end of the pulp container, wherein the outer diameter of the protruding shoulder is larger than the inner diameter of the hole on the open end; wherein when two pulp containers are nested over each other, the protruding shoulder is placed on the upper hole of the open end and a separation gap is formed between the separation space on one pulp container and the outer wall on the other pulp container. The process comprises: A. injection; B. demolding. The present invention can greatly reduce the difficulty of separation.

Abstract: A pulp molding negative angle container comprises a conical pulp container which is open on the upper end. The inner wall of the open end of the pulp container has a separation space which is inclined downwards and set outwards. A protruding shoulder is provided on the outer wall of the open end of the pulp container, wherein the outer diameter of the protruding shoulder is larger than the inner diameter of the hole on the open end. When two pulp containers are nested over each other, the protruding shoulder is placed on the upper hole of the open end and a separation gap is formed between the separation space on one pulp container and the outer wall on the other pulp container.

Abstract: A pulp molding machine, a pulp molding process and a paper-shaped article made thereby are provided. The pulp molding machine comprises a pulp-dredging stage, a first pre-compression forming sub-stage, a second pre-compression stage, a compression thermo-forming stage and an edge-cutting stage. The pulp molding process comprises the steps of a pulp-dredging step, a first pre-compression forming step, a second pre-compression forming step, a compression thermo-forming step and an edge-cutting step. The pulp molding machine the pulp molding process can drain off water or vapor from a wet pulp more efficiently and shorten the cycle time of the pulp molding process due to the extra pre-compression sub-stage. The paper-shaped article made thereby has a greater smoothness and structural strength than conventional paper-shaped product.

Abstract: A pulp molding machine and a paper-shaped article made thereby are provided. The pulp molding machine comprises a machine frame body, a pulp-dredging stage, a compression thermo-forming stage and an edge-cutting stage disposed on the machine frame body. The pulp-dredging stage comprises a paper slurry tank, a first upper mold and a first lower mold, a wet pulp is dredged up by the first lower mold from the paper slurry tank, and is pre-compressed by and between the first upper mold and the first lower mold to form a first semi-finished product. The compression thermo-forming stage comprises a second upper mold and a second lower mold, the first semi-finished product is thermo-compressed by and between the second upper mold and the second lower mold to form a second semi-finished product. The edge-cutting stage is utilized for cutting superfluous edges of the second semi-finished product to form a paper-shaped article.

Abstract: A batch-automated microfiltration press for producing large uniform thickness nanomaterial sheets includes a filtration envelope of variable size that is defined between an upper platen having a fixed position and a lower platen disposed in spaced apart, parallel relation to the upper platen. The upper platen has a plurality of input nozzles and a plurality of flow dispersers associated with each of the input nozzles. Nanoparticles are deposited onto a fine filter membrane positioned in the filtration envelope. Flow channels and drain holes are formed in the lower platen. Each of the flow channels has a non-linear path of travel. A closed-loop fluid control system maintains a predetermined rate of nanoparticle deposition onto the fine filter membrane. A motion control system controls the raising and the lowering of the lower platen, maintaining a constant displacement instead of constant pressure, enabling the production of clean, undamaged sheets of nanomaterial papers.

Abstract: A method for manufacturing a right-angled pulp product uses a mixture of cellulose fibers as pulp. Steps in the method include taking the pulp to form a flat shape, pressing and heat-drying the flat-shaped pulp to form a pulp product having a plurality of troughs, taking out the pulp product, cutting off a burr around the pulp product, applying adhesive onto each of the troughs, and bending two adjacent plates at two sides of each trough to form a right angle and a fixed shape.

Abstract: A method for preparing a pulp molded cup lid with buckles without overlapping curves on both surfaces, comprising: diluting plant fiber into pulp and placing it into a forming mold with a filter screen to form a paper embryo through vacuum adsorption; assembling the forming mold with a transfer mold under no pressure for vacuumization to obtain a paper embryo; transferring the paper embryo into a heat setting mold without mesh screen and assembling the mold under no pressure to obtain a cup lid body with stiffening ribs; then stamping into a finished cup lid. The cup lid has smooth internal and external surfaces without overlapping curves and no paper fiber dissolved out at the places where the internal surface and the liquid contact and the suction port and the labial part of the user contact; buckles improves the strength of the cup lid and the leakproofness.

Abstract: The present invention provides a transformable molding assembly, which has a lower mold, an upper mold, and an activating device. The lower mold has a first plane formed with at least one cave. The upper mold has a second plane formed with at least one guide rail and at least one protrusion assembly corresponding to the at least one cave. The lower mold and the upper mold are matched with each other along a first direction by the at least one cave and the at least one protrusion assembly thereof. The activating device is linked with the upper mold. The at least one protrusion assembly comprises at least one driving element and a plurality of driven elements.

Abstract: A method of forming a moulded and printed product from pulp material including the steps of: forming a pre-form mould to have one or more planar surfaces, compound conjoined planar surfaces and/or two dimensional curved surfaces; transferring an amount of pulp slurry material to the pre-form mould; forming a moulded pre-form from the transferred pulp slurry material; applying printing to the planar and/or dimensional curved surfaces in a pre-distorted configuration; and moulding the printed pre-form to a different final shape whereby the printed surfaces retain the printing without running and the printing conforms to a desired post distortion configuration.

Abstract: A process for molding recyclable, compostable, and disposable containers made of pulp paper is disclosed herein. The process includes disposing a wet pulp layer on a male or female mold, mating the mold with its counterpart, and applying a force on the pulp layer to remove moisture and thin the pulp. The process continues by applying a vacuum to either the male or female mold to hold the pulp layer, and removing the other mold. The process further comprises sequentially mating male and female molds until the pulp layer is the desired thickness and shape of the container. Embodiments of the process may include molding pulp containers to include pleats, stability features, reverse draft features, and puffed pulp configurations.

Abstract: A process and apparatus for making die-dried friction wafers collects friction particulates in a mold defining a wafer. The mold includes at least one perforate wall portion against which an aqueous slurry including the particulates is passed to form at least one layer on the wall as the particulates collect in the mold. The collection is dried followed by curing, and may be cured in the mold by heating.

Abstract: A fabric for a papermaking machine is provided. The fabric includes a machine facing side and a web facing side comprising pockets formed by warp and weft yarns. Each pocket is defined by four sides of the web facing side. Two of the four sides are each formed by a warp knuckle of a single warp yarn that passes over at least three consecutive weft yarns to define the warp knuckle. The other two of the four sides are each formed by a weft knuckle of a single weft yarn that passes over two consecutive warp yarns to define the weft knuckle.

Abstract: A fabric for a papermaking machine that includes a machine facing side and a web facing side comprising pockets formed by warp and weft yarns is provided. Each pocket is defined by four sides on the web facing side, each of the four sides is formed by a knuckle of a single yarn that passes over only two consecutive yarns to define the knuckle.

Abstract: A method for manufacturing a wastepaper shock absorbing material using a vacuum forming principle is provided. The method includes disintegrating wastepaper selected from at least one of old corrugated containers, old newspapers and milk cartons, diluting the disintegrated wastepaper to form a pulp suspension, mixing the pulp suspension with a cationic starch to form a mixture, and vacuuming the mixture by applying a first vacuum in a first direction and a second vacuum in a second direction in a vacuum former to vacuum-dehydrate the mixture and provide a shock absorbing material. The first direction is substantially opposite to the second direction. The method further includes drying the shock absorbing material and performing a surface sizing process on a surface of the shock absorbing material. The wastepaper shock absorbing material has a low elastic modulus and density and can be manufactured without using the conventional press process performed by a press plate.

Abstract: A shaped pulp article and the method for making same are disclosed. The method of making a shaped pulp article includes the steps of preparing a slurry by mixing at least one material of construction with water, placing the slurry in a porous mold having a shaped molding surface, extracting excess water through the porous mold to form the shaped article, and pressing the shaped article between complementary heated male and female structures.

Abstract: A method of producing a lipped molded article comprising the steps of forming a molded article having an opening portion by papermaking and outwardly curling the peripheral wall portion which constitutes the opening portion to make a lip. The method is characterized in that the inner surface of the molded article is coated with a resin layer to make a multilayer molded article, the part to be curled of the peripheral wall portion of the molded article is impregnated with a liquid, and the part to be curled is subjected to curling processing while or after being heated.

Abstract: A method of producing a fiber molded article using a pressing mold, includes inserting a first split and a second split into a slurry tank such that a fiber layer is formed on the first split and a fiber layer is formed on the second split, placing the pressing mold, which includes a solid elastic member and an inflatable elastic member configured to be inflated, onto the fiber layer on the first split, joining the first split and the second split such that a fiber molded article is formed from the fiber layer on the first split and the fiber layer on the second split, and dewatering and shaping the fiber molded article by pressing the fiber molded article by the solid elastic pressing member and the inflatable elastic pressing member.

Abstract: A method of making absorbent pads is disclosed. The method includes homogeneously mixing superabsorbent material and fluff in a forming chamber of an online drum former and wrapping a porous fabric over a forming screen on a forming drum of the drum former. The method further includes forming an absorbent pad from the homogeneously mixed superabsorbent material and fluff pulp as the homogeneously mixed superabsorbent material and fluff pulp exits the forming chamber onto the forming screen and compacting the absorbent pad to a density of at least 0.28 grams per cubic centimeter after the absorbent pad leaves the forming screen.

Abstract: Apparatus for forming fibrous filter elements such as tubular elements molded from borosilicate microfibers. Molding rigs are supplied with a slurry from a system including a holding tank and a reservoir. The reservoir is coupled to a water intake and also receives recycled aqueous liquid. The holding tank receives a mixture of fibers and aqueous liquid. A controller monitors volume levels in the holding tank and reservoir and allows for incremental pH changes.

Abstract: A method for manufacturing shock absorbing materials using wastepaper using vacuum forming principle and wastepaper shock absorbing materials using the method are disclosed, wherein the method comprises: disintegrating wastepaper selected from at least one or more of Korea Old Corrugated Container (KOCC), Korea Old Newspaper (KONP) and milk carton, using a blender; diluting the disintegrated wastepaper to manufacture pulp suspension; mixing the pulp suspension with cationic starch; vacuum-dehydrating the pulp cationic starch mixed with the pulp suspension to a dual direction using a vacuum forming capable of dual vacuuming to manufacture a shock absorbing material; drying the shock absorbing material; and performing a surface sizing process on a surface of the dried shock absorbing material, such that a shock absorbing material having a remarkably low elastic modulus and density can be effectively manufactured without recourse to the conventional press performed by a press plate.

Abstract: A fibrous panel is molded in two or more progressively formed mold members each comprising a porous support plate to which a plurality of rigid mold pieces are affixed. The mold pieces are truncated 3D tapered structures, and are arranged on the support plate in a regular array so that an intersecting grid or lattice of channels is defined between them. A fiber stock is poured into a first mold member and the stock is compressed and dewatered to form a panel. The panel is removed from the first mold member and placed into a second mold member having narrower and shallower channels whose side walls are more upright than those of the first mold member. The panel is further compressed and dewatered in the second mold member, and is densified in both the vertical and lateral directions by virtue of the progressive formation of the mold members.

Abstract: A method of producing pulp moldings having a paper-making process comprising the steps of assembling split mold halves (11, 12) having suction passageways (14) to form a paper-making mold (10), feeding pulp slurry of predetermined set feed concentration into the cavity (13) in the paper-making mold (10), and sucking the pulp slurry through the suction passageways (14) to form a pulp layer (15) on the inner surface of the paper-making mold (10), wherein the concentration of the pulp slurry in the cavity (13) in the initial and/or final period of formation of the pulp layer (15) in the paper-making process is lower than the above-mentioned set feed concentration of the pulp slurry.

Abstract: A method of producing a pulp molded article. The method feeds a pulp slurry to a cavity of a papermaking mold having a prescribed cavity shape to form a pulp preform including a main part having an opening and a separable part having a flange and connected to an edge of the opening. A pressing member is inserted into the preform, the pressing member is expanded to press the preform toward the papermaking surface, the preform is removed from the papermaking mold, and then the preform is cut at a joint between the separable part and the main part.

Abstract: A method for producing a pulp molded article (7) comprising the steps of supplying a pulp slurry into the cavity (1) of a mold (10) composed of a set of splits (3 and 4), the set of splits (3 and 4) being assembled together to form the cavity (1) with a prescribed configuration, to form a pulp deposited body (5), feeding a fluid into the cavity (1) to press the pulp deposited body (5) onto the inner wall of the cavity (1) for dewatering.

Abstract: A manufacturing process for a fire component by having a mixture containing expansion graphite powder, chemical fiber and paper fiber at a specific ratio to be bound by a process normally used for the non-woven fabric, and finally hot pressed into sheet, or the mixture is treated as a pulp to be dried for serving as a fire component; accordingly, the process of the present invention gives accurate control of the mixing ratio of the expansion graphite powder and allows to increase the containment of the expansion graphite powder in the fire component up to eighty-five percent (85%), thus to significant upgrade the performance of the fire component.

Abstract: A pulp packing material comprising: a first layer containing crosslinked pulp as a main component; and a second layer containing non-crosslinked pulp or biodegradable plastics as a main component, which are produced by sheet making, wherein the first and second layers are stuck and laminated onto each other.

Abstract: ET-743 is used in the preparation of a medicament for an effective treatment of a tumour by combination therapy employing ET-743 with another drug.

Abstract: Apparatus for producing a molded pulp product from a fiber slurry comprising a dip tank containing a fiber slurry therein and having a liquid level. A platen is provided. A porous mold is carried by the platen. The platen and the mold carried thereby are lowered into the fiber slurry in a downward direction with the platen being disposed upwardly of the mold so that the mold is introduced through the liquid level into the fiber slurry. A vacuum is supplied to the platen and to the mold while the mold is disposed in the fiber slurry to cause fibers in the fiber slurry to collect onto the mold and form a wet molded pulp product. The platen and the mold with the wet molded product thereon are moved out of the fiber slurry through the liquid level to permit water to drain from the mold and the wet molded pulp product. The wet molded pulp product is then dried.

Abstract: A method of producing a pulp molded article comprising the steps of assembling splits (10, 11) each having a suction passageway and a papermaking screen (5) into a papermaking mold (1), filling the cavity of the papermaking mold (1) with a pulp slurry, discharging the liquid component of the pulp slurry through the suction passageway to deposit pulp fiber on the inner side of the papermaking screen (5) into an undried wet molded article, and dewatering the undried molded article deposited on the inner side of the papermaking screen (5), wherein the splits (10, 11) each have a large number of flow passageways (2) for feeding a purging fluid for cleaning the papermaking screen (5), and the purging fluid is ejected from the outer side of the papermaking screen (5) toward the cavity through the flow passageways (2) during the filling with the pulp slurry.

Abstract: A method of producing a pulp molded article comprising a papermaking step in which a pulp slurry is fed to the surface of a papermaking mold having suction paths, and water contained in the pulp slurry is sucked through the suction paths whereby the pulp is deposited on the surface to form a wet preform, and a dewatering step in which the wet preform is dewatered, wherein the temperature of the fed pulp slurry is raised while the pulp is being deposited on the surface.

Abstract: A method for producing a pulp molded article (7) comprising the steps of supplying a pulp slurry into the cavity (1) of a mold (10) composed of a set of splits (3 and 4), the set of splits (3 and 4) being assembled together to form the cavity (1) with a prescribed configuration, to form a pulp deposited body (5), feeding a fluid into the cavity (1) to press the pulp deposited body (5) onto the inner wall of the cavity (1) for dewatering.

Abstract: A method for producing a pulp molded article (7) comprising the steps of supplying a pulp slurry into the cavity (1) of a mold (10) composed of a set of splits (3 and 4), the set of splits (3 and 4) being assembled together to form the cavity (1) with a prescribed configuration, to form a pulp deposited body (5), feeding a fluid into the cavity (1) to press the pulp deposited body (5) onto the inner wall of the cavity (1) for dewatering.

Abstract: A papermaking mold for producing a pulp molded article comprising a core of prescribed shape which has a plurality of holes for fluid passage interconnecting the outside and the inside and is made of an elastically deformable material and a fluid-permeable material which covers the outer surface of the core, the fluid-permeable material being capable of forming passages for a fluid in its thickness direction even when pressed and deformed.

Abstract: Pulp deposited bodies (7 and 8) are formed on the surfaces (2a and 3a) of a set of splits (2 and 3) of a papermaking mold, each split having a plurality of interconnecting holes connecting the outside to the inside thereof, and the splits (2 and 3) are mated to join the pulp deposited bodies (7 and 8).

Abstract: A method is disclosed for forming from a fiber slurry a three-dimensional fiber truss. The forming method involves compressing a fiber slurry or a fiber pulp between a pair of rigid foraminous dies to rapidly drive out most of the carrier fluid. The fiber retained between the dies is compacted into a pre-form fiber truss. The pre-form fiber truss is subsequently dried and consolidated in a heated press to produce a finished fiber truss. In panel applications, the fiber truss can be used by itself, or combined with other fiber trusses, to form a light-weight structural core for sandwich panels. Sandwich panels have numerous uses in packaging, material handling, construction, and furniture industries. Specific products include bulk bins, heavy-duty boxes, shipping containers, wall panels, roof panels, cement forms, partitions, poster displays, reels, desks, caskets, shelves, tables, and doors.

Abstract: A method of making a three-dimensional object from fibers includes attaching a mold made at least in part of elastomeric material to a porous support. The mold comprises a first mold member defining at least one channel in fluid communication with the porous support. Each channel has within it at least one second mold member. A mixture of fibers and fluid carrier is poured onto the mold. Thereafter, a pressure differential is created across the mold to create a flow of the mixture toward the porous support via the second mold members. This flow causes the fluid carrier to pass through the porous support, thus depositing the fibers within the recessed parts of the second mold members in the mold. Thereafter, the mold is compressed sufficiently to deform the mold and to provide uniform, normal pressure to the fibers which have been deposited in the second mold members.

Abstract: The present invention provides a core for receiving a wound product wherein the core is made of a waste sludge produced in a papermaking process. The process for making the core includes the steps of mixing the sludge with a binder material, which may be either a wet strength or a dry strength agent, and then compressing the mixture into a core through a process such as extrusion or molding. Optionally, the sludge may be dried prior to mixing with the binder material.

Abstract: In a filter manufacturing method, during a time period from the start of the suction of the slurry to a point in time when fibers in the slurry accumulate on the outer peripheral surface of the protector to a prescribed thickness, the protector and its leg portions are held spaced away from each other. The leg portions are moved toward the protector so that the leg portions are disposed at a position spaced by a uniform distance from the outer peripheral surface of the protector and the suction operation is continued. Thus, the slurry containing the fibers therein can be easily caused to flow deeply into recess portions of a fin-like portion with no fiber being caught between the protector and the leg portions, thus reducing non-walled portions.

Abstract: A method is used for making disposable trays and bowls with organic materials or herbaceous plants that can be easily disintegrated and that has low economical value. The organic materials include straws, bagasses or forage grasses etc., which are cheap and can be easily obtained. The manufacturing costs of the trays and bowls are thus competitive in price and suitable for producing disposable trays and bowls for containing food. No waste water and gas will be produced such that the method meets the requirement of environmental protection.

Abstract: In a process for molding a fiber molding for a fiber-reinforced composite material with short fibers oriented in one direction, a slurry molding material having short fibers dispersed in a liquid is used, and pressing forces are applied to the molding material from two directions substantially perpendicular to each other within a mold, while removing the liquid.

Abstract: The invention relates to a lining textile and a method of manufacturing same.It comprises a woven or knitted textile support (1) and at least one non-woven layer (2).According to the invention, the non-woven layer or layers (2) are bonded to the knitted or woven textile support (1) by fluid jet needling.

Abstract: A light-weight fiber brick is formed from a water-fiber suspension including ceramic fibers. A molding device is introduced into the suspension and has plurality walls including at least three walls each of which extends perpendicular to the other two of the three walls. Water is withdrawn simultaneously from the interior of the molding device through at least the three walls, thus causing the fibers of the suspension to tend to align longitudinally within the interior of the molding device in three spatial coordinate directions (X, Y, Z). Thereby there is formed a brick having fibers thereof aligned with longitudinal directions thereof having directional components in three spatial coordinate directions.

Abstract: A paperboard, containing a major portion of cellulose and a minor portion of an uncured biodegradable latex polymer, is molded into a shaped packaging form.

Abstract: A process for consistently making ceiling tiles having uniform density and surface texture includes using a conveyor along which trays are moved in a generally horizontal direction. A feeder box is used to deposit pulp in the trays, the pulp being comprised of a mixture of water, starch, fibrous material, and other ingredients. The feeder box through which pulp is deposited in the trays is of a special design, and includes a sloping front edge which creates a negative rake angle with respect to layers produced by the system. The lower front edge of the feeder box includes a surface having a compound curvature. Ceiling tiles are produced by the process having improved uniformity of density and surface texture.

Abstract: A method for recycling wood fiber products and particularly newspaper-type pulp, into a new and useful molded product is disclosed. A quantity of paper to be recycled is mixed with sufficient water to form a viscous pulp or slurry by beating the pulp to a desired consistency for a given texture of the product to be made. A pulp press is employed which has a molding chamber with interior sidewalls comprised of a rigid screen through which water can pass and a rigid plate outboard from the screen. The rigid plate has channels formed therein facing the screen through which channels water can flow. One of the sidewalls is movable into the molding chamber to serve as a piston. Some means to drive the movable sidewall, such as an hydraulic jack, completes the press. The beaten pulp is poured into the molding chamber. The chamber is then closed, and the press operated by moving the movable sidewall into the chamber to compress the beaten pulp to a desired pressure and pulp density.

Abstract: Economical manufacturing of wood powder-molded products becomes possible with the introduction of wood pulp as the binding agent to be used in combination with water. The molded products feature not only high moisture absorbing capability and a unique natural touch of hybrid between wood and paper, but easy and convenient disposability after use. The product can be molded into any shape, but the method would be more suitable for manufacturing small-size pellet products form the practical standpoint to perform drying (dehydration) process. This invention enables to utilize wood powder resources including sawdust, which is currently disposed of in a huge amount as the industrial waste, all over the world.

Abstract: A sculptured structural fiberboard product is formed using a mold that includes porous forming areas which, in one embodiment, are porous forming mandrels movably mounted on the mold, and liquid impervious thimbles which removably cover the porous areas. A fiber network is formed as water is drained off through the porous areas and the thimbles are moved to gradually unveil the porous areas during the mat formation. When mandrels are used, the mandrels are withdrawn in cooperation with a pressing force applied to the mat to consolidate and dry the web. The porous areas can also act as heat and mass transfer means during consolidation and drying. An alternative embodiment permits formation of laminated products and another alternative embodiment permits close control over the product density during consolidation and drying.

Abstract: Methods and apparatus for producing three-dimensional structural members having one flat side from wood fibers utilizing flow deposition of the fibers onto a support. The support includes resilient deformable mold inserts. The mold inserts are formed of silicone rubber and may be blocks of the material, or may be a membrane which can be inflated to form the mold inserts. Pressing is done with a force normal to the support, and the mold inserts create response forces at varying directions to thus shape and hold the three-dimensional finished part. Heat drying also may be used.