27 results about "Softwood" patented technology

The utility model discloses a kind of transfer devices for cork furniture, belong to furniture transport technical field.It includes vehicle plate, handle and universal wheel.Vehicle plate below installs universal wheel and is convenient for moving, above welding handle, two slide rails are installed on vehicle plate, and circular limit block with roller inclined rail is correspondingly set in one end of slide rail.Adjusting assembly is rotated by hand wheel drive screw column, drive screw block and bearing connection slider connecting column lateral movement of it, core effect is to pull fixed plate and its connecting roller from roller inclined rail to slide rail, realize accurate positioning and transport of furniture on device.Rope automatic recovery assembly is automatically recovered by clock spring drive reel, in combination with ratchet and pawl anti-loosening mechanism and guide rope board, cooperate with rope binding column to realize furniture fast binding and fixing.Solve the problem that furniture is laborious in traditional transfer, fixed operation is complicated, with loading positioning accurate, binding convenient and the like advantages, significantly improve the safety and efficiency of cork furniture transfer.

The utility model relates to the technical field of decoration structure, specifically disclose a kind of composite fireproof wood veneer structure, including the engineering base layer, protective function layer and decoration function layer sequentially arranged along preset direction;The engineering base layer includes cork pad;The protective function layer includes glass fibre cloth and fireproof layer sequentially arranged along preset direction;The decoration function layer includes non-woven fabric and wood skin sequentially arranged along preset direction, and the non-woven fabric and wood skin are combined together by hot melt composite process.The wood skin of the utility model is not susceptible to humidity, bonding is more stable, and the overall performance is improved.

The application discloses an environment-friendly sound insulation board combined with softwood and hardwood, which comprises a first softwood layer, a second softwood layer, a third hardened wood layer and a hardwood layer which are sequentially attached, wherein the thickness of the first softwood layer is 3-8 mm, the thickness of the hardwood layer is 6-12 cm, the density of the second softwood layer is 160-190 kg / m3 and the thickness is 3-8 mm, and the density of the third hardened wood layer is 250-270 kg / m3 and the thickness is 10-15 mm. The ecological environment-friendly sound insulation board combined with softwood and hardwood solves the manufacturing method of the traditional sound insulation board, has the characteristics of firm durability, natural grain, convenient construction, safety and environmental protection, sound absorption, heat insulation, durability, comfort and strong warmth, has strong adaptability, can be combined with other materials, can maintain strength while reducing the application of hardwood, and uses cheaper softwood and oak bark to replace hardwood, and has an advantage in price.

The invention relates to a process for manufacturing wood pellets from woody green waste, comprising the following steps: - collection of woody green waste (1), - coarse shredding of the woody green waste (2), - fine shredding of the first shredded material and a second shredded softwood material (3), by inserting the first and second shredded materials into at least one shredder, - drying of the first and second shredded materials (4), in at least one dryer, - mixing of the first and second shredded materials (5), in at least one mixer, - granulation of the resulting mixture (6), in at least one pellet press. The invention further relates to an installation for implementing a process according to the invention. Figure for the abstract: Fig 1

The utility model discloses a novel cork cutting device, including support, the rotatable connection of support between has rotary frame, the inside of rotary frame is provided with cutting piece, two sliding positioning frames that symmetrical are provided with on the inlet plate upper end, the outside of rotary frame evenly is provided with a plurality of press down sliding wheel. Through above -mentioned structure, support one side fixedly connected with inlet plate, and the cross fixed connection of movable block has a plurality of movable arc block, and the upper end fixed connection of movable block has sliding positioning frame, make it can place cork between sliding positioning frame and movable block, make it convenient to cut with different cork positioning place in the middle of support, and the rotatable connection of support middle has rotary frame, and the lower extreme of rotary frame is provided with first motor, and the inside of rotary frame is provided with cutting piece, make it convenient to press tightly cork cutting and not easy to shake up and down at will, and the upper end has good limiting effect, and can rotate cutting piece to different position and cut in different direction.

This invention provides a method for preparing barrier-type flesh-coated base paper, comprising: mixing softwood pulp and hardwood pulp at an oven-dry weight ratio of (30-40):(60-70), beating the pulp to a freeness of 36-42°SR, and sequentially adding a wet strength agent and a retention aid; after forming the pulp, when the wet paper sheet dryness is 23-30%, using 90-120... The paper is pressed under a linear pressure of kN / m, then dried and creased at 15-22% to obtain the base paper for wrapping meat. Through the synergy of the above processes, the resulting base paper has a density ≥0.60g / cm³, an air permeability of 1.0-5.0μm / (Pa·s), a 60-second Cobb value ≤35g / m² for refined lard (35℃), and a wet tensile strength significantly higher than that of ordinary kitchen paper. This invention effectively solves the problems of easy tearing and oil leakage when conventional kitchen paper is used to wrap fresh meat at a cost close to that of household paper, while also having good air permeability.

This invention relates to a method for preparing a high-colorfastness, wet-rub resistant colored paper yarn base paper, belonging to the interdisciplinary fields of papermaking and textile technology. The invention includes the following steps: mixing bleached softwood sulfate pulp and Manila abaca pulp in a specific ratio, adding nanocellulose dispersion, and then performing descaling and beating treatments; sequentially adding water-based dyes, composite fixing agents, environmentally friendly wet-strength agents, and release agents to the pulp, controlling temperature and stirring parameters for dyeing and auxiliary combination; forming the treated pulp onto a wire mesh, and then pressing, segmented drying, and surface sizing treatment to obtain the colored paper yarn base paper; the paper yarn base paper prepared by this invention exhibits high wet-rub resistant colorfastness, low bleaching index, and significantly improved colorfastness; the base paper also has high tear strength, can withstand the composite stress during the paper yarn cutting and twisting process, and possesses excellent mechanical properties.

The purpose of the present invention is to provide an absorptive material capable of exhibiting good absorption performance with respect to a water-containing composition containing an organic substance. Specifically, the present invention provides: an absorptive material that is for a water-containing composition containing an organic substance, and that contains a cellulose material such as pulp having a fiber length of 0.2-5 mm and a fiber width of 10-50 um; and a method that is for treating a water-containing composition containing an organic substance, and that comprises bringing a dehydrating agent into contact with the water-containing composition containing an organic substance and causing an absorptive material to absorb a component containing water in the water-containing composition. The cellulose material is preferably a pulp having a whiteness of 10-95% or a solid content of at least 15%. Further, the cellulose material is preferably hardwood or softwood pulp, or kraft pulp.

This invention provides a high-strength, low-deformation composite natural antibacterial spunlace fabric, its preparation method, and its application, belonging to the field of hygiene product technology. It includes straw pulp fiber, wood pulp fiber, and regenerated cellulose fiber, wherein the wood pulp fiber is bleached softwood pulp fiber; the regenerated cellulose fiber is lyocell fiber and / or viscose fiber; the lengths and diameters of the straw pulp fiber, wood pulp fiber, and regenerated cellulose fiber are complementary and matched to construct a multi-level reinforcing fiber network structure. This invention improves existing spunlace fabrics in terms of both materials and structure. The straw pulp fiber, wood pulp fiber, and regenerated cellulose fiber form a ternary synergistic fiber system, with filling fiber units embedded in the network pores formed by the regenerated cellulose fiber and entangled reinforcing fiber units, forming a wedge-shaped filling that significantly improves the strength of the spunlace fabric.

The application discloses a preparation method of a paper suitable for intaglio printing and brush writing, and comprises the following steps: step (1), pulp preparation: bleached kraft softwood chemical pulp and bleached kraft hardwood chemical pulp are proportioned at a ratio of 5-10% and 90-95%; step (2), beating: the NBKP beating degree is controlled to be 38-48SR to provide good fiber bonding force and paper strength; the LBKP beating degree is controlled to be 25-35SR to provide excellent paper forming uniformity, smoothness and softness; step (3), sizing: carboxymethyl modified starch is added to the pulp before a paper machine pressure screen; step (4), pulp washing, sand and gas removal and sizing: step (5), fine screening, net section dewatering forming, pressing and pre-drying, to obtain raw paper: step (6), surface coating. The paper prepared by the method has excellent printing performance, excellent writing experience and excellent comprehensive quality, and the process is advanced.

This invention discloses a Peak racket made of wood fiber reinforced composite material and its preparation method, belonging to the field of sports equipment manufacturing. The racket surface uses softwood fiber, hardwood fiber, or nanocellulose fiber as the reinforcing phase, combined with biodegradable bioplastics, natural resins, and other matrix materials, and is manufactured through hot pressing, winding / layout, or 3D printing processes. This invention uses renewable wood fiber raw materials, resulting in a low carbon footprint and biodegradability, aligning with environmental protection principles. The product combines lightweight, high specific strength, and excellent damping performance, providing good vibration absorption, comfortable and stable use, while retaining the aesthetic appeal of natural wood grain. The manufacturing process is flexible and adaptable to different needs, enabling mass production or personalized design. The raw materials are readily available, and the process is mature, facilitating industrial promotion and effectively solving the problem of balancing environmental friendliness, performance, and aesthetics in existing rackets.

This invention relates to a papermaking process for cultural paper, and relates to the technical field of papermaking. The process includes initial pulp preparation, pulp treatment, papermaking, and post-treatment steps. By using softwood pulp and poplar mechanical pulp to establish a fiber skeleton, and using chitosan grafted with acrylamide-maleic anhydride copolymer to enhance fiber bonding, a stable wet-end chemical environment is established to ensure efficient retention of fillers. This application achieves high ash content and high bulk while improving paper strength, resulting in cultural paper with good surface integrity and stable physical properties.

The utility model discloses a cork composite coiled material's roll forming machine, including roll forming machine body, the one side fixed connection of roll forming machine body has the fixed plate, the top equidistance fixed connection of fixed plate has the support seat, and the rotatable joint of guide roller has between two support seats, the utility model relates to roll forming machine technical field, this cork composite coiled material's roll forming machine through having set up second air inlet pipeline, swivel, guide roller, flow guide groove, blow -off port, filter screen, hollow board and first air inlet pipeline has realized the function that the coiled material after roll forming is air -cooled cooling, can assist reducing coiled material temperature, avoid because natural cooling too slow and lead to coiled material shrinkage uneven, warping or surface wrinkle, through having set up fixed seat, knob, two -way screw rod, adjusting block, sliding rod, return spring, sliding block, plug rod and slot have realized the function that the interval between two sets of hollow boards is adjusted, has strengthened the applicable effect of device.

A method for manufacturing paperboard in a paper-making machine, the method comprising the step of: forming a bulk ply by applying a pulp suspension comprising at least 50 wt% (based on the total dry weight of the pulp suspension) of high-bulk softwood pulp and 0.01-10 wt% (based on the total dry weight of the pulp suspension) of a strength enhancement agent selected from the group consisting of highly refined cellulose, microfibrillated cellulose (MFC), a cationic strength additive, an anionic strength additive, or a combination thereof, from a headbox onto a moving wire to form a wet web, at least partially dewatering the wet web on the wire to obtain an at least partially dewatered web, and drying the at least partially dewatered web to obtain the bulk ply; wherein the wire is provided with a wire shaker which shakes the wire at frequency of 100-600 strokes per minute and a stroke length of 5-35 mm.

The present application relates to the field of filling mold pressing process, and particularly relates to a cork special-shaped core mold pressing product filling mold pressing process, which comprises a blanking bin forming die, an A scraper, a B scraper, a C scraper, an upper forming die, a mold core and the following steps: the upper forming die is arranged in matching with the blanking bin forming die, and a filling groove is formed in the top of the blanking bin forming die; A scraping grooves are formed in the both sides of the bottom of the A scraper corresponding to the filling groove; B scraping grooves are formed in the both sides of the bottom of the B scraper corresponding to the filling groove, and B scraping grooves two are formed in the inner bottom wall of the B scraping grooves one; C scraping grooves are formed in the both sides of the bottom of the C scraper corresponding to the filling groove. The multiple groups of scrapers are arranged to scrape and fill the mold core in the scrapers, so that the filling is uniform, the density is uniform, the elasticity and strength are consistent, a piece of mold core is added in the inside to be pressed at the same time, the strength of the product after forming is strengthened due to the added mold core, and the product itself is more durable, and is not easy to break and break.

The present application relates to the technical field of composite floor manufacturing, and particularly relates to a method for manufacturing a multi-layer solid wood composite floor capable of simultaneously improving the strength, dimensional stability and surface passive protection function of fast-growing poplar, in particular a method for manufacturing a multi-layer solid wood composite floor with a softwood layer attached to the surface of poplar, comprising the following steps: 1) preparing an acrylic resin solution; 2) filling and reinforcing poplar veneer by resin impregnation; 3) laminating and compounding modified poplar veneer and unmodified poplar plywood; and 4) laminating and pressing the modified poplar veneer laminated material and the softwood adhesive layer to obtain the multi-layer solid wood composite floor with the softwood layer attached to the surface of the modified poplar plywood. The present application fills the cell cavities of poplar with acrylic resin to reinforce the poplar veneer, and through hot pressing and gluing, the modified poplar veneer, the unmodified poplar plywood substrate and the softwood layer are compounded into the multi-layer solid wood composite floor, which can effectively simultaneously improve the strength, dimensional stability and surface passive protection function of fast-growing poplar.

This application discloses a high-performance filter paper and its preparation method, relating to the field of filter paper technology. The filter paper comprises 95-105 parts by weight of functional fibers and 2.6-3 parts by weight of responsive additives. The functional fibers include 38-42 parts by weight of modified softwood pulp and 7-9 parts by weight of modified nanocellulose. The modified softwood pulp is obtained by alkali treatment of bleached sulfate softwood pulp with 5% NaOH at a temperature of 48-50°C. The modified nanocellulose is obtained by in-situ synthesis of lignin from papermaking black liquor. This application achieves significant improvements in filtration accuracy, wet strength retention, and filtration speed through alkali treatment of modified softwood pulp and in-situ synthesis of modified nanocellulose from lignin in papermaking black liquor, while also utilizing resources. The synergistic effect of the responsive additives results in controllable cost and environmental friendliness.

This invention discloses a segmented cutting propagation method, belonging to the field of garden plant propagation technology. The segmented cutting propagation method includes the following steps: cutting preparation, root primordia-promoting treatment, and root-promoting treatment. The root primordia-promoting treatment involves quickly dipping the lower part of the cutting into a root primordia-promoting solution, placing the cutting on a partition of a root primordia-promoting device, and spraying the cutting on the partition for 9-11 minutes every 2 hours until root primordia are generated, thus obtaining cuttings treated with root primordia-promoting solution. The root primordia-promoting solution is an aqueous solution of IBA, NAA, and 70% hymexazol wettable powder. Applying this segmented cutting propagation method to summer softwood cutting propagation can shorten rooting time and reduce rot rate.

The utility model discloses a large -scale softwood storage jar of preventing material from blocking, and the upper layer support ring and the lower layer support ring are arranged in the inner wall of jar body, the first main shaft, the second main shaft, the third main shaft of spliced stirrer are connected in proper order, and the first main shaft and the second main shaft are arranged in the jar body, and the third main shaft is arranged in the conical casing and the discharge gate, the first main shaft outer surface is provided with a plurality of first anti -blockage stirring rod and first support stirring rod, and the first support stirring rod is supported on the upper surface of upper layer support ring, the second main shaft outer surface is provided with a plurality of second anti -blockage stirring rod and second support stirring rod, and the second support stirring rod is supported on the upper surface of lower layer support ring, and the third main shaft outer surface is provided with a plurality of third anti -blockage stirring rod, the utility model discloses reasonable in structure can prevent the broken softwood bridge -building or blockage in the jar body, and through the cooperation of first support stirring rod and upper layer support ring, second support stirring rod and lower layer support ring, the stability of spliced stirrer is guaranteed.

This invention discloses a nanoscale biomass recyclable material and roll, comprising the following raw materials in parts by weight: 1-100 parts modified biomass filler particles, 1-100 parts marine shells, 1-100 parts rice straw, 1-100 parts corn stalks, 1-100 parts corn paste, 1-100 parts coconut shells, 1-100 parts tea tree stalks, 1-100 parts tea leaves, 1-100 parts coffee grounds, 1-100 parts rice straw and wheat straw, 1-100 parts wine cork, 1-100 parts oak cork, etc.; 1-100 parts plant starch, 1-100 parts soybean oil, and 1-50 parts rubber. This invention's nanoscale biomass recyclable material uses powder and granules ground from plant roots and stems as fillers, exhibiting excellent environmental protection and functional effects, replacing conventional rubber softening oils, and demonstrating significant recyclability.

The present invention relates to a moulded cellulose pulp product comprising mainly eucalyptus Kraft chemical fibre. Another aspect of the present invention relates to a process for producing the moulded cellulose pulp product. The moulded cellulose pulp product of the present invention exhibits homogeneity characteristics, mechanical strength properties and production cycles that are equivalent to or improved upon those of prior art products consisting of softwood fibres or non-wood fibres.

This invention relates to the field of battery materials technology, specifically to a leak-proof pulp layer paper, its preparation method, and its application in carbon-zinc batteries. The leak-proof pulp layer paper comprises, from the outside to the inside, an anti-corrosion coating, a dense core layer, and a seepage-proof surface layer, constructing multiple liquid-resistant and anti-corrosion barriers. The dense core layer comprises the following components by weight: softwood pulp, polypropylene fiber, modified starch, vinyl dimethyl fluorosilane-modified nano-silicon nitride, fumed silica, mixed monomers, initiator, and crosslinking agent. Softwood pulp provides basic strength, polypropylene fiber enhances electrolyte resistance, modified starch improves adhesion and retention, and the mixed monomers and modified nano-silicon nitride form a three-dimensional crosslinked structure. This results in high tensile strength, no swelling upon immersion, no deformation, and no collapse, significantly improving the interfacial bonding strength, leak-proof performance, and structural stability of the pulp layer paper, achieving multiple effects of efficient leak prevention, corrosion prevention, and stable discharge.

This invention belongs to the field of tobacco paper technology, and provides a formed paper for use in paper filter rods and its preparation method. The formed paper has a three-layer gradient porous composite structure, including a permeable support layer, a high-efficiency adsorption layer, and a liquid-locking and anti-seepage layer stacked sequentially, with interconnected pores between the layers. The permeable support layer is formed from a permeable support layer slurry, the raw materials of which include low-beaten softwood pulp and cationic starch, obtained through gelatinization. The high-efficiency adsorption layer is formed from a high-efficiency adsorption layer slurry, the raw materials of which include enzymatically modified grafted fibers, tobacco-derived modified porous carbon carrier, tourmaline powder, and a foaming agent, obtained through a wet compounding and foaming process. The liquid-locking and anti-seepage layer is formed from a liquid-locking and anti-seepage layer slurry, the raw materials of which include enzymatically modified grafted fibers and modified pectin-chitosan composite adhesive, obtained through mixing and dispersion. This invention features high permeability, high tar selective adsorption rate, and high aroma retention rate.

The present invention relates to a method for producing a hymenophore material using Fomitopsis quercina grown on a lignin-reduced softwood substrate. The invention further relates to the hymenophore material at different production steps, and its use as a leather or in producing a packaging material.

This invention discloses a production process and product for washable and environmentally friendly kitchen paper. The process includes pulp preparation, wet strength agent addition, papermaking, TAD drying, and post-treatment steps. The pulp is a mixture of 45% softwood pulp fiber and hardwood pulp fiber, which undergoes differentiated beating treatment. The wet strength agent is a compound of polyamide epichlorohydrin resin and cationic starch, added in a specific order and proportion. After dewatering and forming on the wire section of a TAD paper machine, it undergoes hot air penetration drying through the pre-drying cylinder and the main drying cylinder, with the hot air velocity in the main drying cylinder hood being 18-20 m / s. Post-treatment employs a composite process combining point bonding and line bonding. This process, through the synergy of fiber ratio, wet strength agent compounding, and TAD drying technology, ensures that the resulting kitchen paper has a longitudinal wet tensile strength of not less than 300 mN, can withstand at least 4 standard washes, and combines environmental friendliness and durability, meeting the washable and reusable needs of kitchen cleaning scenarios.

This invention discloses a controllable preparation method for high-strength, moisture-resistant cork composite boards. Addressing the technical problem of coupling raw material and process parameters in the cork composite board preparation process, and the difficulty of simultaneously meeting both mechanical and moisture-resistant performance indicators using traditional trial-and-error methods, this invention establishes a multiple quadratic regression model relating cork particle size distribution, adhesive content, filler content, coupling agent content, and temperature, pressure, and time during pre-pressing, hot-pressing, and depressurization stages. Interaction terms and quadratic terms between raw material and process parameters are introduced to characterize the multivariate nonlinear coupling relationship. Using a lower limit threshold for tensile strength and an upper limit threshold for water absorption thickness expansion rate as constraints, an objective function containing a squared deviation term is constructed. The optimal combination of process parameters is iteratively solved using a Gaussian process surrogate model and a Bayesian optimization algorithm with an expected improvement acquisition function. Hot-pressing according to the optimized parameters yields a composite board with a tensile strength of 2.68 MPa and a water absorption thickness expansion rate of 0.72%, achieving controllable preparation of both mechanical and moisture-resistant properties.