The present invention provides a moldable mixture containing large portion of agricultural fibers and small portion of a binding agent and a flow-promoting filler material. The moldable mixture is substantially free of formaldehyde, with low moisture content and high draw ratio. The present invention also provides methods of manufacturing molded products and related parts, based on the claimed moldable mixture. Molded products (830) and related parts such as runner (810) and plank (820) with light weight, high density and more complex profile are manufactured by the claimed methods including steps of providing required materials for a moldable mixture, mixing the provided materials to form a moldable mixture, shaking the moldable mixture in preparing for compression molding and compression molding the moldable mixture to form molded products and related parts.

A sheet manufacturing method includes a mixing step of mixing a fiber and a resin powder in air, and a sheet forming step of accumulating and heating a mixture mixed in the mixing step to form a sheet. The resin powder has a volume average particle diameter of equal to or less than 50 μm, and an absolute value of an average charging amount in a range of 5 (μC/g) to 40 (μC/g).

A sheet manufacturing method includes a mixing step of mixing a fiber and a resin powder in air, and a sheet forming step of accumulating and heating a mixture mixed in the mixing step to form a sheet. The resin powder has a volume average particle diameter of equal to or less than 50 μm, and an absolute value of an average charging amount in a range of 5 (μC/g) to 40 (μC/g).

The present invention provides a method for processing a molded tray based on bamboo-wood mixed shavings, comprising: extracting, crushing, mixing, drying, separating by wind separation, heat balance treatment, mixing glue, paving and hot pressing, cooling and grinding, inspecting and warehousing. In the invention, the industrial trays are manufactured by mixed bamboo and wood materials. The bamboo materials do not include bamboo peels and other impurities. The use of bamboo materials can improve the quality of trays from raw materials and reduce the moisture content of the trays. In addition, the brittleness of bamboo materials can improve the hardness of trays. The combined bamboo materials and wood materials can increase the toughness of the product and reduce the cost; furthermore, each link in the production process is elaborately designed and adjusted in the invention. The industrial trays made by the processing method of the present invention have increased the weight supporting capacity by at least 1.5 times compared to ordinary trays, and the product's service life is 3 to 5 years in normal uses (no water soaking, no overpressure).

A resin powder for manufacturing paper or non-woven fabric has a volume average particle diameter that is equal to or less than 50 m, and an absolute value of an average charging amount that is in a range of 5 (C/g) to 40 (C/g).

This invention discloses adhesive compositions useful for providing cohesive strength to particles, for example a mat of wood particles produced while making particleboard prior to curing. The adhesive compositions has a) one or more biopolymers and b) one or more monomers or oligomers. An oligomer may have a degree of polymerization of 4 or less. The weight ratio of the monomer/oligomer to the biopolymer is optionally between 30:70 and 80:20. Optionally, the adhesive compositions may be combined with an isocyanate. The adhesive composition may be used to make no added formaldehyde wood composites such as particleboard.

A method for producing a compressed cellulosic fiber product and a compressed cellulosic fiber product manufactured from cellulosic raw material using this method. The method comprises the steps of: (i) providing cellulosic raw material comprising cellulosic fibers; (ii) treating the cellulosic raw material with an adhesive composition to obtain a raw mass; and (iii) compressing the raw mass in a pre-defined form to effect condensation to obtain the compressed cellulosic fiber product.

The present invention provides a method for processing a molded tray based on bamboo-wood mixed shavings, comprising: extracting, crushing, mixing, drying, separating by wind separation, heat balance treatment, mixing glue, paving and hot pressing, cooling and grinding, inspecting and warehousing. In the invention, the industrial trays are manufactured by mixed bamboo and wood materials. The bamboo materials do not include bamboo peels and other impurities. The use of bamboo materials can improve the quality of trays from raw materials and reduce the moisture content of the trays. In addition, the brittleness of bamboo materials can improve the hardness of trays. The combined bamboo materials and wood materials can increase the toughness of the product and reduce the cost; furthermore, each link in the production process is elaborately designed and adjusted in the invention. The industrial trays made by the processing method of the present invention have increased the weight supporting capacity by at least 1.5 times compared to ordinary trays, and the product's service life is 3 to 5 years in normal uses (no water soaking, no overpressure).

A sheet manufacturing apparatus according to the invention includes: a mixing unit that mixes a fiber and a resin powder in air; and a sheet forming unit that accumulates and heats a mixture mixed by the mixing unit to form a sheet, in which the resin powder has a volume average particle diameter of equal to or less than 50 m, and an absolute value of an average charging amount in a range of 5 (C/g) to 40 (C/g).

A system and method for manufacturing a cardboard fiber composite, including: a multi-stage fiber refining system configured to generate milled cardboard fibers by reducing cardboard into a predetermined particle size threshold suitable for further processing; a bio-based epoxy resin dispensing system including a motorized airless sprayer configured to generate resin-applied cardboard fibers by atomizing and applying a bio-based epoxy resin into a mixing system; the mixing system including a mixer equipped with a plurality of blades, configured to blend the resin-applied cardboard fibers with the bio-based epoxy resin to a predefined distribution threshold; and a heat press forming system including at least one mechanical shim, configured to form the blended resin-applied cardboard fibers into a molded fiber composite material of a predefined shape and density.