469 results about "Sizing" patented technology

The invention discloses a high-toughness PPR pipe machining device which comprises an extrusion system, a pulsation mixing system, a melt online monitoring device, a sizing cooling system, a traction device and a winding device. The extrusion system is used for melting and conveying raw materials, and the pulsation mixing system is used for deeply mixing a melt by utilizing a periodic disturbance structure, so that a toughening agent and a copolymerization component are more uniformly dispersed in the melt. The melt on-line monitoring device can detect the temperature, pressure and dispersity of the melt in real time, so that the extrusion process is monitorable. The sizing cooling system adopts a subsection cooling mode of rapid cooling, constant-temperature slow release and low-temperature shaping, and stable shape control is achieved through vacuum sizing. The traction device and the winding device are used for keeping the production rhythm stable and achieving continuous winding of the formed pipe. According to the invention, the melt mixing quality can be improved, the cooling internal stress is reduced, and the toughness and dimensional stability of the PPR pipe are improved.

The invention discloses an acid-neutral nano PHA paperboard reinforcing agent as well as preparation and application thereof, and belongs to the technical field of papermaking chemicals. The reinforcing agent is a bio-based nano water-based emulsion, and the core of the reinforcing agent is that a stable high-positive-charge nanoparticle interface is constructed under an acid-neutral window through the synergistic effect of polyphenol and an amine polymer. The environment-friendly wet strength agent solves the potential safety hazard of the traditional wet strength agent, and does not contain free formaldehyde and epichlorohydrin. The method has the outstanding advantages that the method is completely compatible with a modern papermaking acid-neutral process, and the defect that the similar bio-based technology needs to react under alkalinity is overcome; the adhesive is flexible to apply, can be efficiently used for wet end addition, or can be stably compounded with oxidized starch for surface sizing; the preparation method is simple, efficient and energy-saving, can realize excellent wet strength retention rate and dry strength improvement under the conditions of low addition amount and conventional industrial drying at 105 DEG C, and does not need extra high-temperature curing.

The invention discloses a method for solving linting and dusting during paperboard printing, and belongs to the technical field of papermaking. Comprising the following detailed steps: a slurry preparation process, surface sizing treatment and a drying and curing process, in the slurry preparation process, various high-quality fiber raw materials are carefully selected and mixed, the proportion of various fibers is accurately controlled according to the expected performance and quality requirements of the paperboard, and meanwhile, a proper amount of auxiliaries are added; and the binding force between the fibers and the strength of the paper are enhanced. The raw material ratio in the paperboard production process is precisely regulated and controlled, the specially-made composite surface sizing agent is adopted for surface treatment, and scientific and reasonable drying and curing processes are matched, so that the problems of linting and powdering of the paperboard in the printing process are effectively solved, and the printing quality and the production efficiency of the paperboard are improved.

The invention discloses a rubber flat cable extruding machine head, which belongs to the technical field of cable forming and comprises a machine head jacket, a runner body and a mold core. And the runner body is sleeved in the machine head outer sleeve. The mold core is sleeved with the runner body, and an adjusting piece is arranged between the mold core and the end face of the runner body. The adjusting piece is arranged between the tail end of the mold core and the end face of the runner body, and the core function of the adjusting piece is to accurately adjust the position of the mold core in the axial direction. By adjusting the axial position of the die core, the relative distance between the front end of the die core and the inner opening of the flat die sleeve can be changed, and the distance is a key area of sizing materials from shunting to converging and shaping and directly affects pressure distribution and flow speed of the sizing materials. Through fine adjustment, the flow and the pressure of the sizing material in each area of the flat die sleeve, especially narrow areas on two sides with larger resistance and an open area in the middle can be ensured to be close to balance, so that a flat cable with uniform thickness, full edge and width conforming to design can be extruded.

The present invention discloses a pattern leather fabric production process, which mainly comprises five steps of raw material preparation, slurry coating, fabric compounding, curing and curing, and peeling, the base cloth is subjected to pre-shaping and corona treatment to enhance the binding force, the coating slurry is composed of vinyl silicone rubber, hydrogen silicone oil, a platinum catalyst and other environmental protection materials, and the coating slurry is prepared through vacuum stirring. The release paper with the lines forms a pattern coating through gravure or rotary screen coating, the pattern coating is subjected to hot-pressing compounding with the base cloth after being pre-cured, the composite fabric is cured and cured in an online or offline mode, and finally the release paper is stripped to obtain a finished product. The invention relates to a fabric production process which can be used for producing high-grade and breathable products.

The invention discloses a manufacturing method of a high-strength and high-toughness X65QL long-distance conveying seamless line pipe in a low-temperature environment. The X65QL long-distance conveying seamless line pipe comprises the following chemical components in percentage by weight: 0.8-0.12% of C, 0.15-0.45% of Si, 1.10-1.50% of Mn, 0.04-0.07% of V, 0.005-0.020% of Ti, 0.005-0.045% of Al, less than or equal to 0.018% of P, less than or equal to 0.008% of S and the balance of Fe and impurity elements. The manufacturing process comprises the steps of annular furnace heating, perforating through a perforating machine, PQF hot continuous rolling, pipe removing, sizing, cooling bed cooling, saw cutting, straightening, quenching and tempering heat treatment, flaw detection, water pressing and packaging and warehousing. Through the composite synergistic effect of V and Ti and the subsequent quenching and tempering heat treatment process, the technical requirements of the high-strength and high-toughness X65QL seamless pipeline steel pipe for long-distance conveying in the low-temperature environment are met.

The invention discloses a fiber synergistic copolymer as well as a preparation method and application thereof, and belongs to the technical field of papermaking chemicals and high polymer materials. Aiming at anion garbage interference caused by deepening of closed circulation of white water in the papermaking industry and green compliance challenges caused by replacing plastic with paper, the copolymer adopts a specific polycarboxylic acid and trace cationic monomer structure-effect design, and has excellent anti-interference capability and permeability. In the wet-end in-pulp enhancement, the enhancement effect of the additive can be superior to that of a traditional high-molecular-weight additive only by a relatively low addition amount, and water filtration and retention are remarkably improved; in a surface sizing and pulp molding hot pressing process, the rigidity and the water-resistant size stability of a product can be greatly improved through a unique cross-linking mechanism. According to the scheme, the industrial pain point of low enhancement efficiency in a complex environment is effectively solved, and the product does not contain organic fluorine and completely meets the requirements of environmental protection and sustainable development of a high-performance fiber-based material.

The invention discloses an environment-friendly wide-temperature-range adhesive tape with a high-toughness structure and a preparation method of the environment-friendly wide-temperature-range adhesive tape, and belongs to the technical field of high-performance composite materials. The core-shell particles with the soft core-hard shell structure are added, the core layer is composed of the elastic polymer with the glass transition temperature lower than-20 DEG C, the shell layer is the rigid polymer with the glass transition temperature higher than 60 DEG C, and the wide temperature range self-adaption of the high-toughness structure adhesive tape to summer and winter environments is achieved through the synergistic effect of temperature-sensitive characteristics. In a summer high-temperature environment, the rigid shell layer plays a microscopic scaffold effect and a physical cross-linking strengthening effect and inhibits flowing permeation of a sizing material to micropores of the release paper. And in a low-temperature scene in winter, the elastomer of the core layer still maintains high elasticity, can absorb and dissipate impact energy, serves as a microscopic pressure head, enhances mechanical interlocking and Van der Waals' force effects, and rapidly establishes sufficient initial adhesive force. And the contradictory problems of constructability and reliability of difficult paper uncovering in summer and poor adhesion in winter of the structural adhesive tape are integrally solved.

This invention discloses a silicone emulsion defoamer for textiles and its preparation method. It is prepared from the following components by weight percentage: 5%-40% polysiloxane silicone paste, 0.3%-20% silicone polyether, 1%-20% emulsifier, 0.1%-5% thickener, 0.05%-0.3% bactericide, and the balance being water, with the sum of the weight percentages of all components being 100%. The stability of the emulsion under high temperature and high pressure environments is improved by using cross-linked polysiloxane silicone paste and silicone polyether with a specific structure. The cross-linked polysiloxane silicone paste provides superior defoaming and foam-suppressing performance. Utilizing the intertwined spatial structure of the high-viscosity silicone composition and the silicone polyether, the defoamer prepared by this method not only exhibits good stability under high temperature and alkaline environments but also significantly improves its late-stage foam-suppressing performance in sizing. More importantly, it enhances the compatibility between the silicone emulsion defoamer and the sizing.

The invention belongs to the technical field of electronic cloth, and particularly relates to slurry for low-dielectric fiber cloth as well as a preparation method and application of the slurry. The slurry for the low-dielectric fiber cloth is prepared from the following components in percentage by mass: 3.0 to 4.0 percent of vinyl alcohol polymer, 1.0 to 2.0 percent of ethylene oxide polymer, 0.1 to 0.3 percent of lubricating agent, 0.1 to 0.3 percent of dispersing agent, 0.1 to 0.3 percent of antistatic agent, 0.1 to 0.2 percent of coupling agent and the balance of pure water. According to the sizing agent for the low-dielectric fiber cloth, a low-polarity auxiliary agent system is adopted, the abrasion resistance of a sizing agent film and the stability of a sizing agent system are improved, fiber hairiness is reduced, the prepared electronic cloth is good in fiber dispersity and high in resin binding force after being subjected to high-temperature desizing, the use requirement of a high-speed PCB is met, and the reliability and CAF resistance of the electronic cloth in a severe environment can be improved; the invention also provides a preparation method thereof.

The utility model provides a textile sizing machine which comprises a machine frame, the inner wall of the machine frame is rotationally connected with a first guide roller and a coating roller, the coating roller is arranged on the right side of the first guide roller, a size disc is fixedly arranged on the inner wall of the machine frame, the size disc is arranged below the coating roller, the inner wall of the machine frame is rotationally connected with a first conveying roller, and the inner wall of the machine frame is fixedly connected with a second conveying roller. The first conveying roller is arranged above the coating roller, the rear end of the coating roller penetrates through the rack and is connected with an output shaft of a first motor, and a controller is arranged on the front side of the rack. According to the utility model, the electric telescopic rod on the auxiliary frame below pushes the bearing bracket to adjust, and the two side edges of the mop fabric in the conveying process are supported and leveled under the action of the second limiting roller and the first limiting roller below, so that the two side edges of the mop fabric can be in better contact with the coating roller; the edges of the two sides of the mop fabric can be uniformly coated and sized, and the coated slurry can be quickly dried through the fan.

The invention relates to the technical field of silicon carbide ceramic materials, and particularly discloses a preparation method of high-performance silicon carbide granulation powder. The method comprises the following steps: S1, preparing a composite adhesive system; s2, pre-dispersing the slurry; s3, ball milling dispersion; s4, mixing and size mixing; s5, spray drying; and S6, low-temperature activation. The adhesive is a ceric ammonium nitrate-ascorbic acid-dicyandiamide composite catalytic oxidation system, in the low-temperature activation stage, high-activity Ce < 3 + > generated by reaction of ceric ammonium nitrate and ascorbic acid efficiently catalyzes and cuts off polyvinyl alcohol molecular chains and promotes thorough decomposition of the polyvinyl alcohol molecular chains, dicyandiamide is decomposed to release gas to form a micro-channel, and a local atmosphere is created; the carbon residual rate is remarkably reduced to 0.06% or below, the apparent density is larger than or equal to 0.85 g / cm < 3 >, the porosity of a sintered body is smaller than or equal to 0.7%, and the technical problems of residual carbon control and uniform forming are solved.

The application discloses electronic glass fiber cloth based on impregnating treating agent and a preparation process thereof, and relates to the technical field of electronic glass fiber cloth; and specifically comprises the following preparation steps: uniformly winding the sized glass fiber yarn on a warp beam to obtain glass fiber gray cloth through sizing weaving; performing heat desizing on the glass fiber gray cloth to obtain sized glass fiber cloth after cooling; sequentially performing water opening treatment, drying, impregnating treatment and drying on the sized glass fiber cloth to obtain the electronic glass fiber cloth; the impregnating treatment adopts an impregnating treating agent; the impregnating treating agent comprises the following raw materials: 1-3% functionalized silane, 0.5-0.8% polymer modified silane, 0.3-0.5% pH regulator, 0.05-0.08% surfactant, 0.04-0.07% defoaming agent and the balance of deionized water in percentage by mass; and the prepared impregnating treating agent effectively improves the high-temperature resistance and mechanical properties of the electronic glass fiber cloth.

This invention discloses a fluorine-free oil-resistant agent for internal sizing, its preparation method, and its application method, belonging to the field of papermaking additives technology. Using agricultural waste as raw material, silicon carbide and silicon dioxide are mixed and pyrolyzed with nitrogen and dichloromethane. The pyrolysis products are condensed and allowed to stand to obtain an aqueous phase, a hydrophobic and oleophobic phase, and a dichloromethane phase. The hydrophobic and oleophobic phase is treated to generate chain-like siloxane compounds. These are then added to the dichloromethane phase and subjected to a halogenation reaction to generate halosiloxane compounds. The dehydrated aqueous phase is then added to the halosiloxane compounds to undergo an oxidation reaction, generating siloxane oxide compounds, i.e., the fluorine-free oil-resistant agent for internal sizing. The fluorine-free oil-resistant agent for internal sizing prepared by this method is used in the wet-end chemical stage of papermaking. It can be dispersed in water and adsorbed onto fibers. During the papermaking drying stage, it cross-links with the fibers through esterification, giving the paper good ring crush strength and oil-resistant effect.

The utility model relates to the technical field of textile sizing agent production, and discloses efficient textile sizing agent dispersing and emulsifying equipment which comprises a bottom plate, a supporting column is fixedly connected to the top of the bottom plate, a hollow protective shell is fixedly connected to the top end of the supporting column, and an asynchronous motor is fixedly connected to the inner wall of the hollow protective shell. The left side of the inner wall of the hollow protective shell is rotationally connected with a second hollow rotating column, the outer wall of the second hollow rotating column is fixedly connected with a second bevel gear, the output end of the asynchronous motor is fixedly connected with a first bevel gear, and the outer wall of the first bevel gear is connected with the outer wall of the second bevel gear in a meshed mode. The bottom end of the second hollow rotating column is fixedly connected with a first hollow rotating column. According to the utility model, the sliding rod is pulled to compress the spring to retract into the hollow rotating shaft, and after the sliding rod is loosened, the spring pushes the sliding rod to slide, so that the clamping teeth between the fixed disc I and the fixed disc II are clamped again, the purpose of quick disassembly and cleaning is achieved, the maintenance efficiency is accelerated, and the labor cost is reduced.

The invention discloses a glass fiber impregnating compound. The solid mass of each component accounts for the total mass of the impregnating compound, and the impregnating compound comprises the following components in percentage by mass: 0.10-1.00% of a coupling agent; 0.20%-5.00% of an antistatic agent; 5.00% to 15.00% of a polyester emulsion; 0.20%-5.00% of a belt forming agent; 0.01% to 0.20% of a pH value regulator; 73.80 to 94.49 percent of water; the belt forming agent is at least one of polyurethane, epoxy resin or an aqueous solution of the polyurethane and the epoxy resin. The impregnating compound not only ensures the performances of jet chopping, infiltration, uniform dispersion and the like, but also keeps good banding performance, omits the heating and shaping treatment of the products, improves the internal production efficiency, shortens the internal production process and improves the product quality.

The present disclosure relates to a sizing equipment. The sizing equipment comprises a base, a promoter material tank, a conventional material tank, the conventional material tank and the promoter material tank are arranged on the base, a metering pump arranged on the base, a first temperature sensor, a filling pipe assembly in communication with the conventional material tank, and the filling pipe assembly is in communication with the promoter material tank through the metering pump, a controller electrically connected with the first temperature sensor, the controller is used for controlling the weight of the promoter material pumped into the filling pipe assembly through the metering pump according to the ambient temperature detected by the first temperature sensor.

[Problem] To provide a sizing-agent-coated carbon fiber bundle in which, even when the sizing-agent-coated carbon fiber bundle has superior handling properties, the sizing agent on the sizing-agent-coated carbon fiber bundle exhibits excellent solubility in water and the adhesion amount of remaining sizing agent is reduced. [Solution] A sizing-agent-coated carbon fiber bundle obtained by applying polyethylene glycol and / or a surfactant to a carbon fiber bundle as a sizing agent, wherein all of the following conditions (i)-(iii) are satisfied. (i) The adhesion amount of the sizing agent is 0.15-0.80 parts by mass (inclusive) per 100 mass parts of the sizing-agent-coated carbon fiber bundle 100. (ii) The dry F-F friction coefficient is 0.39 or less. (iii) The adhesion amount of the sizing agent after washing for 50 seconds under the conditions disclosed in the specification is 0.12 parts by mass or less per 100 parts by mass of the sizing-agent-coated carbon fiber bundle 100.

The application provides a coated white surface kraft paper with a back surface not easy to drop hair and powder and a preparation method thereof, and relates to the field of coated white surface kraft paper. The preparation method of the coated white surface kraft paper with a back surface not easy to drop hair and powder comprises the following steps: preparing a coating liquid, primary sizing and secondary coating. The coating liquid is prepared from the following raw materials: heavy pulp calcium, kaolin, starch, butadiene styrene latex, polyvinyl alcohol, sodium carboxymethyl cellulose, water-based epoxy silane, ethylene glycol diglycidyl ether and amino silicone oil. The preparation method can ensure that OCC waste paper boxes are effectively recycled for the back surface of the coated white surface kraft paper, and can overcome the problems of hair and powder dropping and adhesive residue on the back surface of the coated white surface kraft paper, so as to avoid the secondary transfer of hair, powder and adhesive on the back surface of the coated white surface kraft paper to the front surface of the paper, and to ensure the printing effect and printing efficiency of the coated white surface kraft paper.

The utility model belongs to the field of catenary cross-linking plastic extruding machines, and provides a flange structure for a catenary cross-linking plastic extruding machine, which comprises a flange, a filter plate and a glue guide pipe, the filter plate is used for being connected with a plastic extruding machine, a first feeding taper hole and a second feeding taper hole which are communicated with each other are formed in the filter plate and the flange respectively, the small diameter of the first feeding taper hole is the same as the large diameter of the second feeding taper hole, and the feeding angle of the first feeding taper hole for feeding rubber is larger than that of the second feeding taper hole for feeding rubber. And the flow rate of the sizing material is increased. Compared with the prior art, the utility model has the advantages that through the design of the feeding angle of the two feeding taper holes, the flow speed of the sizing material is effectively increased, and the material accumulation phenomenon caused by the blocking of the sizing material is reduced; meanwhile, a spherical interface between the flange and the glue guide pipe is changed into a conical interface, so that alignment is easier during mounting, and the glue leakage phenomenon is effectively prevented; the additionally-arranged heating ring is matched, it is guaranteed that the temperature inside and outside the flange is more uniform, and the stiff block phenomenon is avoided.

The utility model relates to the technical field of plasterboard sizing machines, and provides a plasterboard sizing machine capable of uniformly sizing, which comprises a rack, a plurality of rotating round pipes rotationally connected in the rack, two symmetrically distributed support plates fixedly connected to the top end of the middle of the rack, a mounting table fixedly connected to the top ends of the support plates, and an electric control glue box fixedly mounted at the top end of the mounting table. A plurality of adjustable spraying mechanisms are fixedly arranged at the front end of the mounting table, pressing rollers are arranged on the portions, located on the two sides of the supporting plate, of the rack, mounting frames are fixedly connected to the portions, corresponding to the two sides of the pressing rollers, of the rack, sliding blocks are slidably connected into the mounting frames, and regulation and control mechanisms for controlling the sliding blocks are arranged in the mounting frames. By changing the position of the spraying mechanism, the position of the spraying mechanism can be adjusted according to the joint condition of the gypsum board, and the height of the compression roller can be adjusted according to the height of the gypsum board, so that the device has the capability of flexible adjustment, the use freedom degree is higher, and the use is more flexible.

The invention belongs to the technical field of papermaking, and particularly relates to high-strength corrugated base paper and a production method thereof. The method comprises the following steps: respectively preparing waste paper pulp and natural color chemithermomechanical pulp with 20-35-degree SR beating degree through independent preparation lines; then, mixing the two kinds of pulp in a drifting system according to the proportion of 20-50% of natural color chemimechanical pulp, and adding a ternary retention aid composed of cationic retention aids polyacrylamide with the molecular weight of 8-10 million and cationic retention aids polyacrylamide with the molecular weight of 3-6 million and bentonite; and finally, the mixed pulp is put on a net to be formed, surface sizing is conducted on paper sheets, and sizing paint comprises corn starch, starch converting enzyme, styrene acrylate emulsion, AKD emulsion and aluminum sulfate. Through the synergistic effect of branching pulping, proportion optimization, a special chemical system and surface treatment, high-proportion waste paper replacement is achieved, meanwhile, the paper forming strength is guaranteed and improved, the production cost is effectively reduced, and remarkable economic benefits are achieved.

The utility model provides a kind of high comfort no-wrinkle microfiber synthetic leather, including from top to bottom sequentially compounded release paper, surface sizing layer, middle layer sizing layer, bottom sizing layer, pure TPU layer, PUR resin layer, dry method resin base material layer and microfiber layer;The pure TPU layer is adhered to the surface of dry method resin base material layer by PUR resin layer.The high comfort no-wrinkle microfiber synthetic leather of the utility model has no-wrinkle performance while ensuring wearing comfort.

The present application provides a kind of multi-step composite stamping feature springback compensation calculation and forming method, it is related to sheet metal stamping forming technical field, include: to the pre-bending forming processing of the stamping material belt to be executed, generate multi-step pre-bending blank;To pre-bending blank executes step-by-step round operation, generates round transition piece;According to static springback numerical value, finishing sizing and corner shaping operation are executed to transition piece.The method also includes dynamic compensation control: obtain adjacent step size correlation parameters and continuous operation batch parameters;According to size correlation parameters, stress coupling coefficient is established;According to batch parameter, compensation attenuation factor is generated;Coefficient, factor and static springback numerical value are fused and calculated, and target springback compensation instruction is generated;According to target instruction, the compensation shaping action of subsequent batch is controlled.The present application can compensate the dynamic error accumulation generated in long-term processing, and improve the size consistency of multi-step finished product forming.

The invention belongs to the technical field of long material sizing equipment, and particularly relates to a buffering baffle device and method based on impulse control, the buffering baffle device comprises a buffering cylinder and a conveying roller way used for conveying long materials, the buffering cylinder is fixedly installed on the ground, and the moving end of the buffering cylinder is fixedly connected with a buffering plate; a pressure sensor is fixedly installed on the side, close to the conveying roller way, of the buffering plate in an embedded mode, and the oil inlet end and the oil outlet end of the buffering cylinder fixedly communicate with an auxiliary buffering mechanism. According to the baffle buffering device and method, damage to a mechanical device caused by impact of long materials is reduced, the service life of the device is prolonged, meanwhile, the device can adapt to the long materials of various specifications through dynamic correction of an algorithm in the method, good buffering performance is guaranteed, accurate sizing of the long materials is achieved through the automatic pressure adjusting and positioning process, and the production efficiency is improved. In addition, each component in the baffle buffering device works independently, so that maintenance is convenient, and the practicability is rich.

The application discloses a plastic pipeline with spiral strip structure on the outer surface and a preparation method thereof, and comprises the following steps: mixing, hot stirring and cooling and stirring plastic pipeline raw materials to obtain a mixture; feeding the mixture into an extruder and extruding through a die to form a pipe blank with spiral strip structure; making the pipe blank pass through a rotating sizing sleeve assembly and being cooled and shaped in a water tank to obtain the plastic pipeline with spiral strip structure on the outer surface; synchronously rotating and dragging the plastic pipeline by using a rotating pipe dragging mechanism, and then performing length cutting; after cutting, the pipeline is corrected by a correction pipe supporting frame, is dragged by a two-jaw belt dragging machine, and is marked by code spraying, and then is packed into a warehouse to obtain the plastic pipeline with spiral strip structure on the outer surface. The application is a new type of dragging and rotating extrusion technology instead of a traditional die rotating extrusion technology, and the technology can realize long-term stable production and has a high production speed.

The application belongs to the technical field of cigarette materials, and particularly relates to a preparation method of a fine cigarette paper; the method comprises the following steps: (1) selecting long needle-leaf wood fibers and short broad-leaf wood fibers as papermaking fibers; respectively crushing needle-leaf wood pulp plates and broad-leaf wood pulp plates, and then performing disc grinding and beating; mixing the two kinds of pulp according to a certain proportion, adding calcium carbonate, uniformly mixing, and then removing slag to obtain pulp; (2) performing dehydration, molding, pressing, and wet paper forming on the pulp in step (1), and then performing drying; during the drying process, an additive is added into the paper through sizing; after drying, the paper is wound, rewound, and cut to obtain the cigarette paper; by increasing the ratio of long fibers to short fibers, the proportion of long fibers is increased, which is helpful to improve the stiffness and physical indexes of the cigarette paper.

The invention belongs to the technical field of papermaking, and particularly relates to a process for improving blister fastness of a blister card. Comprising the following steps: treating needle and hardwood pulp with compound enzyme, adding light magnesium oxide, grinding to obtain compound modified pulp, preparing three layers of pulp, diluting and purifying, adding auxiliaries into a three-layer slushing pump before purifying, and adding core layer auxiliaries containing hydroxymethyl urea modified cationic polysaccharide and the like into a core layer pump; the three layers of pulp are compounded into a wet paper web layer by layer through an upper net of a headbox, gradient pre-drying is performed after multiple times of squeezing dehydration, and then surface sizing, post-drying, hard calendaring, front and back coating and soft calendaring are performed in sequence to obtain a finished blister card product. The process effectively solves the problems of infirm blister and shelling in narrow-edge blister processing, realizes standardized control of slurry quality, greatly reduces batch-to-batch difference of blister effects, remarkably improves the binding force of a narrow-edge blister area, optimizes the surface performance of paper, reduces the phenomena of linting and powdering during printing, and improves the printing quality of the narrow-edge blister blister. And the printing adaptability is improved.

The utility model discloses a filter paperboard hot melting compound device, relates to hot melting compound machine technical field, including: shell and water tank, shell outer surface top end is fixedly equipped with the water tank, water pipe is equipped on one side of water tank outer surface, water pipe shaft surface top end is fixedly equipped with steam generator, water pipe shaft surface top end is equipped with the steam generator, water pipe shaft surface top end is equipped with the water pipe shaft surface top end, the water pipe shaft surface top end is equipped with the water pipe shaft surface top end. And the steam generator is combined with the efficient heating wire structure, so that the heating speed and uniformity of the sizing material are improved, and the optimal viscosity of the sizing material in the coating process is guaranteed. In addition, due to the design of the one-way valve, water flow backflow is effectively prevented, and the safety and stability of the system are improved. Meanwhile, by adjusting the position of the limiting rod, an operator can flexibly control the distance between the gluing roller and the material, and therefore precise gluing of different types of materials is achieved. Due to the modular design, the overall operation is more convenient and efficient, the production time is shortened, and meanwhile, the compounding quality is greatly improved.

The present application relates to a kind of high uniformity transformer insulating paperboard dynamic forming process and integrated preparation system, belong to transformer insulating material processing technical field, the system includes multiple-source modification module, ultrasonic fluidization module, dynamic reconfiguration module and gradient compaction module.Processing steps cover: slurry is carried out electromagnetic polarization and is compounded nanofiber to break flocculation;In the sizing stage, microflow beam treatment is carried out by applying ultrasonic field;In the forming net part, Z-axis interpenetration interweaving is generated by pulse vacuum induction fiber;Finally, temperature gradient formed by multistage temperature control press roller guides moisture migration and completes compaction.The present application introduces electric physical intervention and fluctuation pressure field, realizes the accurate control of fiber from micro-dispersion to three-dimensional reconstruction, effectively solves the problem of insufficient interlaminar bonding force and tightness of insulating paperboard, improves the electrical strength and mechanical robustness of transformer insulating component.