The present invention relates to a process for producing a paper or a board product having increased dimension stability including providing a fibre slurry including never-dried fibres, treating the fibre slurry with a strength composition, and forming a paper or a board product from the treated fibre slurry, where the strength composition includes a permanent wet strength resin component and a sizing agent. The present invention further relates to a use of a strength composition for increasing dimensional stability of a paper and a board, and to a paper or a board product having improved dimensional stability.

The present invention relates to a process for producing a paper or a board product having increased dimension stability including providing a fibre slurry including never-dried fibres, treating the fibre slurry with a strength composition, and forming a paper or a board product from the treated fibre slurry, where the strength composition includes a permanent wet strength resin component and a sizing agent. The present invention further relates to a use of a strength composition for increasing dimensional stability of a paper and a board, and to a paper or a board product having improved dimensional stability.

An electronic cigarette cartridge tube and a method for preparing the same is introduced herein. Both of a filter tip and a cartridge container of the electronic cigarette cartridge tube are made respectively by consistent-and-continuous production machines used with a pulp-molding fabrication approach which is researched and improved, thereby integrally forming a solid geometrical shape of any one of the filter tip and the cartridge container. It can not only resolve the technical problems of the existing pulp-molding fabrication method that is incapable of producing a component (e.g. a cylinder-shaped longitudinal filter tip or cartridge container) of a cylinder-shaped lengthwise electronic cigarette cartridge tube, having a ratio, greater than one, of a maximum longitudinal height thereof being relative to a maximum transverse width thereof, but can also save its working cycle time, benefit its mass production, and assure its higher product yield and quality.

Provided are purified Cannabis hurd fiber, and refined Cannabis hurd fibers, and methods for preparing cellulosic fiber from the hurd of Cannabis plants. The methods include decorticating the bast from the hurd, at least partially fibrillating the hurd fibers, abiotic retting of the hurd fibers, and exposing the hurd fibers to synthetic sunlight and ozonation to produce a purified hurd fiber. The purified Cannabis hurd fibers are substantially free of bast fiber, and have little to no pectin. Also provided are compositions containing the Cannabis hurd fiber or refined Cannabis hurd fiber, including packaging products, molded pulp cartons such as egg cartons, smoking papers, paper packaging materials, single ply or multi-ply paperboard, absorbent paper products and ink receptive papers.

Provided are purified Cannabis hurd fiber, and refined Cannabis hurd fibers, and methods for preparing cellulosic fiber from the hurd of Cannabis plants. The methods include decorticating the bast from the hurd, at least partially fibrillating the hurd fibers, abiotic retting of the hurd fibers, and exposing the hurd fibers to synthetic sunlight and ozonation to produce a purified hurd fiber. The purified Cannabis hurd fibers are substantially free of bast fiber, and have little to no pectin. Also provided are compositions containing the Cannabis hurd fiber or refined Cannabis hurd fiber, including packaging products, molded pulp cartons such as egg cartons, smoking papers, paper packaging materials, single ply or multi-ply paperboard, absorbent paper products and ink receptive papers.

A method of manufacturing a cellulose nanofiber compact includes a supporting step of supporting a plate-like first precursor containing cellulose nanofibers in a heating vessel, a preliminary molding step of heating the first precursor supported in the heating vessel with infrared rays to obtain a plate-like second precursor and a molding step of molding the second precursor, with heating and pressurizing the second precursor in a mold.

Unique, inexpensive, and strong biocomposites are obtained from blending cellulose matrix materials pith lignocellulosic reinforcement materials with the aid of alkaline aqueous solvent and cold temperatures. These lignocellulosic composites (LCs) are produced without use of any thermoplastic resins, adhesives, catalysts, plasticizers or d chemical or physical procedures. The LCs include a matrix and a reinforcement material. The matrix is a cellulose material (e.g., cotton, hemp, flax, or wood) that is liquefied using an aqueous alkaline solvent solution under cold temperatures to more readily adhere and or incorporate/encapsulate the lignocellulosic reinforcements (wood chips, fibers, and other lignocellulosic sources).

Unique, inexpensive, and strong biocomposites are obtained from blending cellulose matrix materials pith lignocellulosic reinforcement materials with the aid of alkaline aqueous solvent and cold temperatures. These lignocellulosic composites (LCs) are produced without use of any thermoplastic resins, adhesives, catalysts, plasticizers or d chemical or physical procedures. The LCs include a matrix and a reinforcement material. The matrix is a cellulose material (e.g., cotton, hemp, flax, or wood) that is liquefied using an aqueous alkaline solvent solution under cold temperatures to more readily adhere and or incorporate/encapsulate the lignocellulosic reinforcements (wood chips, fibers, and other lignocellulosic sources).

A pulp-molded paper lid for a beverage cup and a method for fabricating the same is introduced. While said pulp-molded paper lid bears an external pressure to accommodate the convex-ridge ring of the cup body therein, by preloading of an insertion force of said convex-ridge ring, a generating-elasticity device of said pulp-molded paper lid is pre-compressed to compressively deform, along inward directions respectively opposite to radial directions of said pulp-molded paper lid. By removal of said external pressure, a movable bearing wall and an outermost sidewall of said generating-elasticity device exert two reversed elastically-rebound forces by a stretched deformation occurring therebetween, for clamp-retaining two opposed sides of said convex-ridge ring. Said generating-elasticity device is released from the pre-compression to exert preloaded elastic forces along said radial directions, for strengthening the clamp-retention and avoiding the technical problems of the prior arts.

Disclosed is a negative angle pulp molded cup lid, wherein the cup lid is made of pulp and comprises a top portion (1) and a side portion (2) connected to an edge of the top portion (1). An inner wall of the side portion (2) has an inner conical surface (31), the inner conical surface (31) forms an angle of less than 90 with a lower surface of the top portion (1), and the inner diameter of the inner conical surface (31) gradually decreases from top to bottom, such that the sealing property and the structural strength can be improved.