225results about "Pulp beating methods" patented technology

The invention belongs to the technical field of environment-friendly paper materials, and provides environment-friendly fireproof flame-retardant paper and a preparation method thereof, and the environment-friendly fireproof flame-retardant paper is prepared from the following raw materials in parts by mass: 20-40 parts of alginate fiber, 50-80 parts of bamboo pulp fiber, 5-15 parts of a flame retardant, 2-5 parts of chitosan, 1-3 parts of nano silicon dioxide and 200-400 parts of water. The alginate fibers and the bamboo pulp fibers are used as main raw materials, and the phosphorus-nitrogen environment-friendly flame retardant and the modified magnesium hydroxide are compounded, so that the dual effects of natural flame retardance and chemical synergy are achieved; according to the invention, the flame retardant and the fibers are synchronously beaten, so that nonuniformity and agent waste caused by later-stage coating are avoided; the environment-friendly fireproof flame-retardant paper is prepared from environment-friendly materials, volatile organic compounds are not discharged in the whole process, the paper can be recycled and degraded, the binding force between modified magnesium hydroxide and fibers is high, and the physical performance of the paper can be further improved.

The invention relates to the technical field of aramid fiber recycling, high-performance fiber modification and functional fiber reinforced materials, in particular to recycled aramid pulp with mechanical force induced brooming and a preparation method of the recycled aramid pulp. The preparation method comprises the steps of physical screening, chemical stripping pretreatment, thread rolling, pulping, pulping mechanical force coupling, stepped heating drying and opener secondary delinting, and the prepared high-quality aramid pulp is applied to the fields of automobile friction materials, high-performance sealing products and special rubber composite materials. The problems that traditional recycled fibers are poor in dispersity, insufficient in specific surface area and weak in matrix interface bonding can be effectively solved.

The utility model discloses a paper pulp preparation device which comprises a dissolving tank, a constant volume tank, a white water tank and a mixing and dissolving tank, the dissolving tank, the constant volume tank and the mixing and dissolving tank are respectively provided with a liquid outlet, the liquid outlet of the dissolving tank is communicated with the interior of the constant volume tank, a first valve is arranged at the communication position, the liquid outlet of the constant volume tank is communicated with the interior of the mixing and dissolving tank, and a second valve is arranged at the communication position. The white water tank is provided with a water outlet, the water outlet of the white water tank is communicated with the dissolving tank and the constant volume tank, a third valve is arranged at the communication position, a liquid outlet of the mixing and dissolving tank is communicated with the paper machine, a fourth valve is arranged at the communication position, and the dissolving tank is used for adding papermaking filler and white water for pre-dissolving to prepare a filler solution; the constant volume tank is used for adding a filler solution and white water to make the volume of the filler solution constant to a preset concentration, and the mixing and dissolving tank is used for adding papermaking fibers and the constant-volume filler solution and uniformly mixing to prepare paper pulp, so that the papermaking filler, the papermaking fibers and the white water can be conveniently and continuously uniformly mixed to obtain the paper pulp.

The invention discloses a preparation method of high-color-fastness woven body paper and the high-color-fastness woven body paper, and relates to the technical field of papermaking, and the preparation method of the high-color-fastness woven body paper comprises the steps of preparing a composite dyeing assistant and preparing the woven body paper. The preparation method comprises the following steps: stirring and mixing cationic microcrystalline cellulose, sodium carboxymethyl cellulose, triethanolamine myriceate, glucan hydroxypropyl trimethyl ammonium chloride, a water-based polycarbodiimide cross-linking agent and deionized water to obtain a composite dyeing assistant, then adding the composite dyeing assistant into slurry, adding a water-based dye, and carrying out a papermaking process to obtain the composite dyeing assistant. According to the method, the color fastness of the woven body paper can be improved. The sun-proof grade of the high-color-fastness woven body paper is greater than or equal to 4 grades.

The utility model discloses a pulping device for production raw materials of packaging color boxes, which relates to the technical field of pulping of raw materials of color boxes and comprises a tank body, a support is fixedly connected to the lower portion of the outer surface of the tank body, and a supporting plate is fixedly connected to the inner surface of the support. A stirring device is jointly arranged on the top surface of the supporting plate and in the tank body and comprises a fixing box, a rotating shaft movably penetrates through the outer surface of the fixing box, a fixing plate is fixedly connected to the upper portion of the inner wall of the tank body, and the top end of the rotating shaft is rotationally connected with the middle of the bottom surface of the fixing plate; the lower portion of the outer surface of the rotating shaft is fixedly sleeved with a first bevel gear, the outer surface of the first bevel gear is connected with a second bevel gear in a meshed mode, and the outer surface of the rotating shaft is fixedly sleeved with blades. Raw materials can be stirred and beaten into paper pulp, and the beaten paper pulp can be poured out.

The invention discloses a manufacturing method of an environment-friendly paper product. The environment-friendly paper product is prepared from the following raw materials in parts by mass: 60-70 parts of a main fiber raw material, 25-35 parts of an auxiliary fiber raw material, 3-8 parts of an environment-friendly additive and 1-2 parts of a pretreating agent. By means of the components, by adding the auxiliary fiber raw materials, the environmental protection property is remarkably improved, waste cotton and linen and agricultural waste are converted into papermaking raw materials, consumption of primary fibers is reduced, meanwhile, waste recycling is achieved, and pollution caused by incineration and landfill is reduced. The auxiliary fibers and the main fibers have a synergistic effect and are matched with the environment-friendly auxiliaries to reinforce the quality of the paper, the cotton and linen fibers improve the flexibility, the agricultural waste fibers enhance the stiffness, lignin and short fibers are separated through low-temperature pyrolysis, impurities are prevented from affecting the performance of the paper, and solid powder rich in the lignin and the short fibers is recycled and reused.

The utility model relates to the technical field of papermaking equipment, in particular to a hydraulic pulper with coaxial different-speed impellers, which comprises a barrel-shaped tank body, a mounting part is hermetically arranged at the lower part of the tank body, and an external rotation mechanism for stirring pulp in the tank body is hermetically and rotatably arranged in the mounting part; an internal rotation mechanism for rotatably cutting pulp fibers is arranged in the external rotation mechanism in a sealed and rotating manner; the rotating speeds of the external rotating mechanism and the internal rotating mechanism are adjustable, and the rotating directions of the external rotating mechanism and the internal rotating mechanism are opposite. According to the hydraulic pulper with the coaxial different-speed impellers, the cutting and dispersing effects are improved by stirring pulp.

The invention relates to the technical field of corrugated medium paper production equipment, in particular to high-efficiency production equipment and process for high-strength corrugated medium paper, which comprises a beating tank, a stirring structure arranged on the inner wall of the beating tank and used for processing corrugated medium paper pulp with different fiber lengths, and a stirring mechanism arranged on the inner wall of the beating tank, the stirring structure comprises a rotary table rotationally mounted on the inner wall of the pulping tank and an extension strip used for smashing corrugated medium paper pulp fibers; the water injection structure is arranged at the upper end of the pulping tank and used for adding water into the pulping tank, and the water injection structure comprises a support fixedly installed at the upper end of the pulping tank and a spray head used for spraying water. According to the pulping machine, by arranging the stirring structure, when high-strength corrugated medium paper is produced, paper pulp with different fiber lengths can be processed as required by controlling the positions of the extension strips, so that the high-strength corrugated medium paper can be conveniently processed by using the paper pulp, and the processing efficiency and practicability of the pulping machine are improved.

The present application belongs to the technical field of pulping and papermaking, and provides a method for preparing a cotton-stalk biochemomechanical pulp. The present application provides a method for preparing a cotton-stalk biochemomechanical pulp, the method comprising the following steps: cutting cleaned and dried cotton stalks, and then sequentially performing pre-steaming and a screw extrusion fiberization treatment; immersing the defibrated cotton stalks into a buffer solution of cellulase to perform an enzymatic treatment for a set period of time, and then immersing same into a hot alkali solution; sequentially subjecting the cotton stalks, which have been subjected to a hot alkali impregnation treatment, to high-consistency pulp refining and a latency removal treatment, and then subjecting the resulting coarse pulp to a second-stage enzymatic treatment by using a compound enzyme of xylanase and pectinase; and subjecting the pulp, which has been subjected to the second-stage enzymatic treatment, to pulp screening and PFI beating, so as to obtain a cotton-stalk biochemomechanical pulp.

The invention discloses a production method for reducing the proportion of long fibers of cream base paper, and belongs to the field of papermaking. The main technical scheme is as follows: raw materials comprise long fibers (one or more of cotton pulp, softwood pulp and bamboo pulp which are subjected to repulping and are ground by two serially connected disc mills until the beating degree is 25-35 degrees SR and the wet weight is 8.0-13.0 g), short fibers (hardwood pulp which is subjected to repulping and defibering and the beating degree is 15-20 degrees SR) and broken paper (subjected to repulping and defibering); adjusting the flow, mixing the three components according to the mass ratio of (8-20): (85-70): (15-0) in a pulp preparation pool, and uniformly grinding until the beating degree is 25-45 degrees SR; the white water reflux quantity is regulated and controlled in the process. And after the slurry is formed by a high-speed paper machine, wrinkling by using a ceramic or carbon steel scraper under the dryness of 55-85% at the wrinkling rate of 18-25%, and coiling and slitting to obtain the cream base paper. The quantification of the raw paper is 10-20g / m < 2 >, and the transverse dry tensile index is gt; 3.0 N.m / g, and the longitudinal wet tensile index gt; 3.0 N.m / g, and the softness lt; the bulk is gt; 6.60 m < 3 > / g, and the transverse liquid absorption height gt; and 75 mm / (100s). The process is optimized, the use amount of long fibers is remarkably reduced, meanwhile, it is ensured that the cream base paper has excellent strength and bearing performance, and the cost is remarkably reduced.

The invention discloses a preparation method of coated gift packaging paper. The preparation method comprises the following operation steps: S1, pulping: respectively pulping bleached sulfate softwood chemical pulp, bleached sulfate broadleaf wood chemical pulp and alkaline hydrogen peroxide bleached poplar chemimechanical pulp, and mixing to form mixed pulp; s2, auxiliary material adding, wet paper sheet forming and pre-drying; s3, coating and sizing are conducted, specifically, the front face and the back face of the paper sheet are coated with a coating respectively, and the coating comprises coating-grade light calcium carbonate, coating-grade talcum powder, a dispersing agent, sodium hydroxide, modified acrylic copolymer emulsion, polyvinyl acetate latex, coating starch, sodium carboxyl cellulose, a lubricating agent and a defoaming agent; s4, carrying out post-drying and carrying out super-soft calendering treatment by adopting eight rollers and seven pressing areas; the invention also provides the coated gift packaging paper prepared by adopting the preparation method, the smoothness of the coated gift packaging paper is greater than 1200s, the roughness of the coated gift packaging paper is less than 1.2 microns, and the coated gift packaging paper completely meets the requirements of the coated gift packaging paper for absorbing and drying gravure or flexographic printing water-based ink.

The application discloses a non-asbestos yarn and a manufacturing method and application thereof. The non-asbestos yarn is spun by using a papermaking method with mineral fibers and cotton pulp and / or waste paper pulp, the mineral fibers are any one or several of sepiolite, brucite and wollastonite, the amount of the mineral fibers is 70-100%, and the amount of the cotton pulp and / or waste paper pulp is 0-30%. The application further provides a manufacturing method of the non-asbestos yarn, the mineral fibers, the cotton pulp and the waste paper pulp are prepared through pulp preparation, papermaking, cutting, twisting and plying. The non-asbestos yarn is used for manufacturing friction materials and sealing materials. The non-asbestos yarn can replace the asbestos yarn, solves the harm caused by traditional asbestos, has simple manufacturing process, convenient operation, avoids environmental pollution, low cost, and is equivalent to the asbestos yarn in ignition loss and tensile strength at room temperature, and can completely replace the asbestos yarn and be used for manufacturing friction materials and sealing materials.

The invention discloses a high-strength paper packaging material and a preparation method thereof, and relates to the technical field of paper pulp molding.The preparation method comprises the following steps that waste paper is crushed and then mixed with bamboo fibers and nanocellulose for pulping, a chitosan solution, melamino-formaldehyde resin, gamma-aminopropyltriethoxysilane, alums and glycerinum are added to prepare forming slurry, and the forming slurry is prepared; performing vacuum adsorption to form a wet blank, preheating a hot press, putting the wet blank into a hot pressing mold, covering the wet blank with the polyvinyl alcohol-sodium alginate composite film, setting pressure and hot pressing time, and after hot pressing is finished, slowly relieving pressure to obtain a formed blank; and putting the formed blank into a blast oven, drying, taking out a dried sample, and standing at room temperature to balance moisture, so as to obtain the high-strength paper packaging material.

The invention discloses pulping equipment for chemi-mechanical pulp and a pulping method thereof, and relates to the technical field of fiber product pulping, the pulping equipment comprises a shell, and a stepping motor is connected with one side of a pulping assembly through an output shaft; an automatic feeding mechanism is arranged on the inner side face of the conveying pipe. And one side of the telescopic rod is connected with an automatic discharging mechanism. According to the pulping equipment and the pulping method of the chemi-mechanical pulp, the stepping motor works to drive the output shaft to rotate, the output shaft drives the pulping assembly to rotate, the pulping assembly conducts pulping treatment on falling bamboo cellulose pulp, hot water is added while pulping is conducted, the temperature of the pulp is kept at 50 DEG C, the stepping motor is adjusted to 30000 revolutions for defibering treatment, and the pulping efficiency is improved. Slurry is discharged through the arranged automatic discharging mechanism, the discharged slurry is conveyed through the automatic feeding mechanism, bamboo pulp softening enzyme and pulping enzyme are added during conveying, after waiting for one hour, the bamboo pulp softening enzyme and the pulping enzyme are fully mixed under conveying of the spiral pushing rod, and the quality of the slurry is improved.

To provide a cellulose pulp excellent in both particle trapping property and binder property, and to provide a method for producing the cellulose pulp, since beaten fibers are used in a variety of fields due to their excellent ability to capture functional particles, but there are also applications that require not only particle trapping property but also binder property, pulp-like acrylonitrile fibers are known as beaten fibers that combine these properties, but in recent years the environmental impact of plastic waste has become an issue and there has been a demand for a shift to bio-based materials, while conventional bio-based materials containing cellulose have not necessarily been satisfactory in terms of combining the above-mentioned properties.SOLUTION: The cellulose pulp according to the present invention is characterized in that the cellulose pulp fibril area is 15% or more and the fibril area(%) / 100×fine(%) / 100 is 0.05 or more.SELECTED DRAWING: None

The present invention relates to a method for preparing water-repellent and breathable bamboo fiber paper, comprising the following steps: pulping a bleached bamboo pulp board to prepare a pulp with a beating degree of 45-65°SR, adding sodium carboxymethyl cellulose and polyamide polyamine epichlorohydrin resin, and then conveying the pulp to a net, pressing, drying, surface sizing, surface spraying, drying, and winding to obtain the water-repellent and breathable bamboo fiber paper. The surface sizing liquid is obtained by compounding a self-made cationic silicone, an alkyl ketene dimer, and water; and the surface is sprayed with self-made modified polyvinyl alcohol to provide the paper with water resistance. The prepared water-repellent and breathable bamboo fiber paper has a basis weight of 25-40g / m 2 , longitudinal tensile strength ≥3.5kN / m, wet tensile strength ≥0.50kN / m, water absorption ≤9.0g / m 2 , air permeability ≥1.0μm / Pa·s, whiteness ≥80%, softness ≤600mN, moisture 5.0%-7.5%, used for breathable base film for sanitary products, and is biodegradable.

The utility model provides pulping optimization equipment for papermaking, and belongs to the technical field of papermaking. The pulping cylinder can be used for polishing the papermaking materials; the stirring barrel is fixedly connected to the circumferential surface of the pulping barrel and can be used for stirring the papermaking materials; the block removing mechanism comprises a first motor which is fixedly connected to the upper end of the stirring barrel and can be used for driving a stirring wheel to rotate; the two stirring wheels are fixedly connected to the output end of the first motor through rotating rods and can be used for uniformly stirring the papermaking materials; the mounting frame is fixedly connected to the upper end of the pulping cylinder, and the second motor can be mounted on the pulping cylinder; and the second motor is fixedly connected to the circumferential inner wall of the mounting frame and can be used for driving the first gear to rotate, after the papermaking materials are stirred, the effect of pulping the papermaking materials can be achieved, then the blocked papermaking materials are ground through a brush disc and a filter plate, and the situation that the subsequent processing effect is affected by the blocked papermaking materials after pulping can be reduced.

The application provides a preparation method of lyocell fibrillated fiber, and specifically comprises the following steps: S1, adding lyocell cut fibers into water to control the concentration to be 2-4%, and dispersing the lyocell cut fibers by using a pulper; S2, filtering water from the dispersed pulp by using a filter press to obtain 10-30% high-concentration pulp, and conveying the high-concentration pulp to a group of high-concentration pulping machines by using a screw feeder to perform pulping, so as to obtain pulp 1 with a beating degree of 40-50°SR; S3, diluting the pulp 1 to a concentration of 1-3% by adding water, and performing beating and defibration by using a high-frequency defibrator, and repeatedly performing beating and defibration by using the high-speed hydraulic shearing effect of the high-frequency defibrator, so as to obtain lyocell fibrillated fiber with a beating degree of 75-95°SR. The lyocell fibrillated fiber can obtain a larger length and a lower fine fiber component by fully utilizing the friction force between fibers and the hydraulic shearing effect, a large number of fibrils can be obtained, and the lyocell fiber can be fully fibrillated.

The invention relates to the field of papermaking, and particularly provides a compound pulping method for a low-expansion-and-contraction-rate decorative paper-based material. Comprising the following steps: S100, adding a compound enzyme solution into primary pulp, and carrying out an enzymolysis reaction to obtain enzymolysis pulp; s200, performing mechanical pulping on the enzymolysis slurry to obtain slurry; s300, compounding the slurry with polyamide-epichlorohydrin resin, polyacrylamide, nano silicon dioxide, titanium dioxide and nano cellulose, and performing post-treatment to obtain a low-expansion-and-contraction-rate decorative paper base; through the synergistic effect of four enzymes, the fiber separation efficiency is improved, the fiber surface is microcosmically modified, the specific surface area is increased, more hydroxyls are exposed, and hydrogen bond bonding in the papermaking process is enhanced; the polyamide-epichlorohydrin resin and polyacrylamide are crosslinked in a fiber network, so that the dry and wet strength of the paper base is improved, and the wet size deformation is reduced; the nano silicon dioxide and the nano cellulose fill up micro gaps, optimize a pore structure and inhibit moisture absorption stress, so that low expansion and contraction rate and high stability of the decorative paper are realized.

The utility model belongs to the technical field of papermaking, and particularly relates to efficient pulping equipment for papermaking. The pulping device comprises a pulping tank, one side of the top of the pulping tank is fixedly communicated with a feeding pipe, and the center of the bottom of the pulping tank is fixedly communicated with a discharging pipe; the defoaming assembly comprises a motor fixedly connected to the center of the top of the pulping tank, a shaft rod coaxially and fixedly connected with the tail end of a motor rotor and rotationally connected to the interior of the pulping tank, a sleeve movably connected to the shaft rod in a sleeving mode, a tension spring arranged on the shaft rod and used for jacking up the sleeve downwards, and a connecting frame fixedly connected to the sleeve; the rolling ball is arranged at the end of the connecting frame, the guide rail is fixedly connected to an inner cavity of the pulping tank and used for installing the rolling ball, and the spine assembly is fixedly connected to the bottom of the connecting frame. A plurality of protrusions are arranged on the bottom face of the inner side of the guide rail and used for repeatedly jacking up the rolling ball. The device disclosed by the utility model adopts a structure capable of eliminating bubbles generated in the paper pulp stirring process, so that the papermaking quality is improved.

The invention belongs to the technical field of composite material preparation, and discloses a method for preparing a high-performance waste paper composite material and application of the high-performance waste paper composite material, and the method comprises the following steps: crushing a waste corrugated carton, pulping, making paper into quantitative waste paper of 100-200g / m < 2 >, dipping the waste paper in an ethanol solution of esterified modified lignin, and then carrying out low-temperature hot pressing treatment to prepare the composite material. According to the invention, the reinforcing process of the waste paperboard is optimized, and the lignin forms a compact cross-linked network among fibers by adopting a modified lignin impregnation and hot pressing combined technology, so that the problem of poor performances of the waste paperboard during secondary recycling is solved. The esterified modified lignin has good dispersity and permeability in an ethanol solution, and can be uniformly distributed in a waste paper fiber network; and after the composite material is hot-pressed for 20-30 minutes under the pressure of 10MPa, the tensile strength and burst index of the composite material are improved.

The application discloses a paper with high coffee residue content and a preparation method and application thereof. The paper can be paper or paperboard, and contains pulp fibers and coffee residue. The beating degree of the pulp fibers is 45-95SR, and the water retention value is 1.4-2.2. The particle size of the coffee residue is 30-500 mesh. The mass percentage of the coffee residue in the paper or paperboard is 40%-90%. The paper can be prepared through the steps of fiber pulp, coffee residue grinding, mixing and molding. The paper can be used for preparing a coffee bag, and the paperboard can be used for preparing a cup sleeve of a coffee cup.

The invention discloses a high-strength environment-friendly craft paper production process with low bleached hardwood pulp consumption, and relates to the technical field of papermaking, and the high-strength environment-friendly craft paper production process comprises the following steps: adopting 20-30% by mass of natural-color sulfate-process softwood pulp and 70-80% by mass of recycled paper pulp; pulping the natural-color sulfate-process softwood pulp by using three conical pulping machines which are connected in series; grading and screening the recycled paper pulp into long, medium and short fibers for later use; carrying out heat dispersion treatment on the recycled paper pulp subjected to the grading treatment by utilizing a heat dispersion machine; adding a mucilage control enzyme into the recycled paper pulp subjected to heat dispersion treatment; blending slurry; surfing the Internet; squeezing the paper; sizing on the surface; and hard calendaring. According to the method, the high-strength environment-friendly craft paper with the burst index of 2.8 kPa.m < 2 > / g can be produced on the premise that the pulp consumption of the natural color needle leaf pulp is low; the prepared high-strength environment-friendly craft paper has the advantages of low cost and low market demand.

Provided are: a cellulose pulp having excellent particle trapping properties and adhesion; and a method for producing the cellulose pulp. The pulped fiber is applied to various fields due to excellent capturing properties of functional particles, but has applications that require not only particle capturing properties but also cohesiveness. Pulp-like acrylonitrile-based fibers are known as pulped fibers that give consideration to these characteristics, but in recent years, the influence of plastic waste on the environment becomes a problem, and conversion into a bio-based raw material is required. On the other hand, a conventional cellulose-containing bio-based raw material is not necessarily a satisfactory raw material in consideration of the above-mentioned characteristics. The purpose of the present invention is to provide: a cellulose pulp having excellent particle trapping properties and caking properties; and a method for producing the cellulose pulp. The cellulose pulp is characterized in that the fibril area is 15% or more, and the fibril area (%) / 100 * fine fiber (%) / 100 is 0.05 or more.

The invention relates to the technical field of papermaking, in particular to book paper capable of quickly absorbing ink and a preparation method of the book paper. By changing the air permeability of the paper, ink permeation is accelerated in a physical mode, so that the quick-drying effect of the paper is achieved. According to the technology, the rapid absorption and drying of ink on the paper surface are realized by adopting an innovative slurry ratio and a production process, so that the writing fluency and the reusability of the paper are remarkably improved, the smoothness of the paper is improved, and the writing experience of a user is greatly improved through the high-end paper fineness. In addition, the novel paper also gives consideration to environmental protection and durability so as to meet the requirements of the modern society on sustainable development.

The invention belongs to the technical field of tipping paper, and particularly relates to low-air-permeability tipping base paper for cigarettes and a preparation process of the low-air-permeability tipping base paper, and the preparation process comprises the steps of pulping, papermaking and calendaring. Two kinds of pulp including bleached softwood pulp and bleached hardwood pulp are continuously pulped through a pulping machine, and the pulping degree is larger than or equal to 70 degrees SR; a non-porous filler and a neutral sizing agent are continuously added into the prepared mixed pulp, a binary retention aid composed of cationic starch and CPAM is added, and after the pulp is dehydrated and formed through a net part and a pressing part, wet paper sheets enter a pre-drying stage to be dried; the printing surface is coated with oxidized starch, the non-printing surface is coated with oxidized starch, PVA and a food-grade oil-proofing agent, and the coated paper sheet continues to be dried; and carrying out surface treatment on the body paper of the tipping paper for the cigarettes by using a soft calender. According to the invention, fibers are combined more tightly, pores are reduced, fiber gaps can be filled, and air permeability is reduced.

The application relates to the technical field of paper for fuel cells, and particularly discloses carbon fiber raw paper for fuel cells and a preparation method thereof, which comprises the following components: 100 parts (70-95 parts of short-cut carbon fibers and 5-30 parts of water-soluble fibers) of fibers, 40-50 parts of dispersant A, 50-100 parts of dispersant B and 0.5-1 part of defoaming agent; after the short-cut carbon fibers and the water-soluble fibers are defibrated, the dispersant A is added for mixing and high-speed stirring to complete foam dispersion, water is added for dilution to first-concentration carbon fiber slurry; the defoaming agent is added for first-time stirring to obtain carbon fiber dispersion slurry; the remaining dispersant A and the dispersant B are added for second-time stirring, water is added for dilution to second-concentration carbon fiber slurry; the second-concentration carbon fiber slurry is used for papermaking to obtain the carbon fiber raw paper for fuel cells. The carbon fibers are prone to occur in the dispersion process, the phenomenon of silk and flocculation is solved, the paper uniformity is good, the tensile strength is high, the carbon fiber raw paper for fuel cells is used for fuel cells, and the important index requirements of porosity and resistance and the like are met.

The utility model discloses a multi-parameter real-time monitoring device of an intelligent centralized pulping station, which comprises a bottom plate, a feeding component mounted at the top end of a supporting plate, a cylinder mounted at the top end of the bottom plate, a stirring component mounted at the top end of the cylinder, an inner shell fixedly connected to the inside of the cylinder, a testing component mounted on the inner shell, and a monitoring component mounted on the testing component. The utility model relates to the technical field of pulping stations. According to the multi-parameter real-time monitoring device of the intelligent centralized pulping station, by starting the liquid pump and controlling opening and closing of the switch valve, liquid in the material storage barrel is detected by the flow meter and then enters the barrel body through the feeding pipe and the discharging pipe, after adjustment and mixing are completed, the liquid inlet valve is opened, and then the liquid in the material storage barrel is fed into the barrel body. Through the arrangement of the filter plate, pulp in the inner shell reaches the fixed cylinder through the liquid inlet pipe and is filtered by the filter plate, water is discharged through the filter plate, fibers are intercepted on the filter plate, the pulping degree is calculated according to the amount of water filtered in a certain time or the characteristics of a fiber layer after water filtering, and the pulping effect can be effectively improved.

The application belongs to the technical field of paper product manufacturing, and discloses a food-grade antibacterial and mildew-proof paper pulp, a paper product and a preparation method of the paper product. The paper product is prepared by papermaking and drying of the paper pulp. The food-grade antibacterial and mildew-proof paper pulp comprises the following components in parts by weight: 100 parts of pulp for household paper, 0.1-0.3 parts of sodium alginate, 0.5-1 parts of a retention aid, 4-10 parts of a slow-release antibacterial and mildew-proof agent, and 0.8-1.5 parts of a wet strength agent. The slow-release antibacterial and mildew-proof agent is prepared by coating MOF-ELA-THY with chitosan. The MOF in the MOF-ELA-THY is prepared from zinc ions and two ligands of citric acid and malic acid. The chitosan is first subjected to antibacterial and degradation treatment, and then gradually exposes the MOF-ELA-THY. The MOF is hydrolyzed to release zinc ions and ELA and THY, thereby endowing the paper towel with long-acting antibacterial performance. In addition, the THY emits a fragrance, thereby judging the persistence of the antibacterial performance of the paper towel.

The invention relates to the technical field of pulping and papermaking, in particular to traditional Lanpavilion cocoon paper and a preparation method thereof. The preparation method of the traditional Lanting cocoon paper comprises the following steps: pretreating and selecting raw materials; carrying out two-stage chemical cooking; washing and fiber decomposition; pulping and preparing pulp; and performing papermaking and drying to obtain the traditional Lanpavilion cocoon paper. The traditional Lanting cocoon paper (mulberry paper) prepared by adopting the technical scheme is excellent in fiber purity, ageing resistance, mechanical strength and the like, the whiteness is greater than or equal to 60%, the ageing-resistant whiteness is reduced by less than or equal to 0.5%, the tearability is greater than or equal to 1560 mN, and the dust degree is less than or equal to 50 pieces / m < 2 >; the style and appearance of traditional famous paper are restored, and a feasible process path is provided for modern production of high-quality handmade paper.