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533 results about "Molded pulp" patented technology
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Molded pulp, also named moulded pulp or molded fibre, is a packaging material, typically made from recycled paperboard and/or newsprint. It is used for protective packaging or for food service trays and beverage carriers. Other typical uses are end caps, trays, plates, bowls and clamshell containers.
Intelligent detection and grading method for product packaging surface defects
The invention provides a product package surface defect intelligent detection and grading method, which comprises the following steps: acquiring discrete point cloud data of an environment-friendly paper pulp molding package surface, removing outliers and noise points in the point cloud data to obtain preprocessed point cloud data, and according to the preprocessed point cloud data, carrying out classification on the surface defects of the environment-friendly paper pulp molding package surface. Connecting the discrete point clouds through triangular patches to generate an initial grid model so as to form a three-dimensional grid model representing the geometric morphology of the environment-friendly molded pulp packaging surface; drawing a surface curvature distribution diagram by calculating Gaussian curvature and average curvature of grid vertexes, and judging defect information of each grid vertex according to the surface curvature distribution diagram to obtain environment-friendly paper pulp molding package surface defect distribution information; boundary curves of the three-dimensional grid model are extracted, local shape features of the boundary curves are analyzed, if deviation exists between the local shape feature of a certain boundary curve and a typical form of a preset normal boundary, it is indicated that burr defects exist in the position, and the burr defects are added into surface defect distribution information.
Owner:GUANGZHOU JIANGREN PRINTING & PACKAGING CO LTD
Tool and method for producing a 3D molded pulp product
The document relates to a tool for producing a 3D molded product from a pulp slurry, comprising a pair of molds having respective product faces, that are configured to face each other and to press a pulp layer therebetween, said product faces providing a 3D shape for molding the 3D molded product, said product faces presenting a respective outer product face edge, defining an outermost limit of a forming area of mold. At least one of the product faces, as seen from the product face edge and inwardly towards a center of gravity of the product face, presents an outer zone (Z1) having effectively no porosity, and an inner zone (Z4) having a porosity of 40-75%, wherein a first intermediate zone (Z2) is arranged between the outer zone (Z1) and the inner zone (Z4), and has a porosity that is greater than that of the outer zone (Z1) and less than that of the inner zone (Z4).
Owner:CELWISE AB
Automatic feeding and hot-pressing mechanism for paper pulp molded products
The utility model discloses an automatic feeding and hot-pressing mechanism for molded pulp products, which relates to the technical field of hot pressing and comprises a frame, a hot-pressing shaping mechanism, a receiving mechanism, a taking mechanism and a finished product transfer mechanism. A material receiving mechanism capable of receiving multiple rows of to-be-hot-pressed paper pulp molded semi-finished products at the same time and a material taking mechanism capable of transferring the multiple rows of paper pulp molded semi-finished products at the same time are arranged, and a hot-pressing lower die capable of being automatically switched between a feeding position and a hot-pressing position in a reciprocating mode is arranged; automatic material receiving, automatic material taking and automatic hot-pressing feeding of multiple rows of paper pulp molding semi-finished products can be achieved, the hot-pressing shaping mechanism, the material receiving mechanism and the material taking mechanism are closely connected and matched with one another, automatic transferring and automatic hot pressing of the multiple rows of paper pulp molding semi-finished products in the hot-pressing shaping process can be achieved, and the working efficiency and the yield are greatly improved. Meanwhile, the material fixing clamp fixes the molded pulp semi-finished product from the outside, the product is transferred in a pushing mode, indentation cannot be caused to the product, and the product quality can be effectively guaranteed.
Owner:HGHY PULP MOLDING PACK
Full-automatic high-quality paper pulp molding microwave drying forming equipment
The invention provides full-automatic high-quality paper pulp molding microwave drying forming equipment which comprises a microwave drying forming part, a suction filtration forming part and a cooling circulation system. The full-automatic high-quality paper pulp molding microwave drying forming equipment has the following beneficial effects that a wave heat source can be turned on and turned off according to actual requirements; in a traditional electric heating mode, a heat source needs to be started all the time to ensure that a mold is in a high-temperature state, and the heat conduction direction is opposite to the water vapor transmission direction, so that the outer part of a paper-plastic product is dried firstly, and internal moisture diffuses to the surface and then is dried under the humidity and temperature gradient, the drying speed is slower, and places with high moisture content are dried slowly. The heat conduction direction of microwave drying is the same as the transfer direction of water vapor, the temperature is increased inside and outside at the same time, and based on the drying characteristic that microwaves can polarize water molecules, the higher the water content is, the higher the temperature is, the higher the drying rate is, the material can be heated more uniformly, and the production period can be greatly shortened.
Owner:YONGFA (JIANGSU) MOLDING PACKAGING TECH CO LTD
Hot-pressing shaping mold and production line for molded pulp packaging products
The utility model relates to a hot-pressing shaping die for a molded pulp packaging product. The defects of unreasonable design and the like in the prior art are overcome. The hot-pressing shaping mold for the paper pulp molding packaging product comprises a hot-pressing shaping concave mold for at least forcing the outer diameter of the original side wing wall thickness of a paper pulp molding wet blank product to be kept unchanged, and a shaping internal expanding mold which is matched with the hot-pressing shaping concave mold and forms a hot-pressing shaping profiling cavity for accommodating the paper pulp molding wet blank product, the shaping internal expansion die applies radial internal expansion force from inside to outside to the original side wing wall thickness, and the radial internal expansion force enables the original side wing wall thickness to be compressed and thinned to the set side wing wall thickness; and when the original side wing wall thickness is forced to be compressed and thinned by the radial internal expansive force, at least part of the inner wall of the original side wing wall thickness is shaped in the direction opposite to the radial internal expansive force to form an inward protrusion. The method has the advantages that the inner convex structure is shaped in the hot-pressing shaping stage, the risk that the inner diameter of the inner convex structure is further enlarged during post-treatment processing demolding can be prevented, and a molded pulp packaging product has better fastening tightness.
Owner:ZHEJIANG SHURCON MFG
Biodegradable pulp packaging products from natural fibers
A molded pulp product formed from the molding of a three-dimensional pulp slurry. The pulp slurry comprises a natural fiber composition of virgin fibers which have not been recycled and are derived from plant materials. The natural fiber composition includes hemp fibers which have been micronized to suitable length and combined with pulverized hemp shive to form a fibrous matrix. The molded pulp product is formed from a vacuum molding process, thermoforming process, custom air-burst molding process, or other molding process wherein the slurry is applied to a three-dimensional mold and a three-dimensional product is formed. The resulting packaging product is one hundred percent biodegradable.
Owner:PAPACKS SALES GMBH
Bio-based composition and application thereof as paper-plastic pulp additive
PendingCN119266004AIncreased ring compressive strengthHigh tear strengthReinforcing agents additionVegetable material additionCelluloseMolded pulp
The invention discloses a bio-based composition and application of the bio-based composition as a paper-plastic pulp additive. The bio-based composition comprises a component A, a component B and a component C, wherein the component A is one or two of a biomass material or a cationized biomass material; the biomass material and the cationized biomass material have a dendritic, fibrous, sheet-shaped, pinniform, flocculent or porous spongy structure; the component B is selected from one, two or more of PHA (polyhydroxyalkanoate), AKD (alkyl ketene dimer), PGA (polyglutamic acid), PLA (polylactic acid), PBAT (polybutylene adipate-co-terephthalate), cellulose ester and cellulose ether; a component C: a retention aid; the bio-based composition does not contain a reinforcing agent, a sizing agent and / or a mineral filler. The bio-based composition provided by the invention is used for paper pulp molding production, and can effectively improve the physical strength indexes of paper plastic, such as ring crush compression resistance, tear strength, bursting strength and / or tensile strength. Mold sticking and mold hole blocking can be avoided, and the production efficiency is improved.
Owner:HANGZHOU GREEN MICRO-NANO TECH CO LTD
Punching and waste cleaning integrated device for paper pulp molding three-dimensional product
The utility model discloses a punching and waste cleaning integrated device for a paper pulp molding three-dimensional product, and relates to the technical field of paper pulp molding, in particular to the punching and waste cleaning integrated device for the paper pulp molding three-dimensional product, which comprises a platform base, and an air cylinder support, a punching knife moving support and a jig base are arranged above the platform base. According to the punching and waste cleaning integrated device for the paper pulp molding three-dimensional product, through the cooperative arrangement of the jig base and the punching jig, the device for punching and waste cleaning integrated device for the paper pulp molding three-dimensional product has the effect that the product can be automatically pulled down to be placed in place, and the punching height uniformity is achieved; the punching and waste cleaning integrated device for the paper pulp molding three-dimensional product has the effects that waste edges can be prevented from being clamped in the waste cleaning cavity, the yield is improved, and the cutter is protected; the punching and waste cleaning integrated device for the paper pulp molding three-dimensional product has the effects that the product can be conveniently taken down, and the production efficiency is improved.
Owner:WING FAT (HENAN) MOLDED FIBER TECH DEV CO LTD
Tool and method for producing three-dimensional molded pulp product
To provide an improved tool and method for forming a three-dimensional molded pulp product.SOLUTION: There is provided a tool for producing a three-dimensional molded product from a pulp slurry, comprising a pair of molds having respective product faces, which are configured to face each other and to press a pulp layer therebetween, and the product faces providing a three-dimensional shape for molding the three-dimensional molded product, the product faces presenting respective outer product face edges, defining an outermost limit of a forming area of the mold. At least one of the product faces, as seen from the product face edge and inwardly towards a center of gravity of the product face, presents an outer zone (Z1) having effectively no porosity, and an inner zone (Z4) having a porosity of 40 to 75%, wherein a first intermediate zone (Z2) is arranged between the outer zone (Z1) and the inner zone (Z4), and has a porosity that is greater than that of the outer zone (Z1) and less than that of the inner zone (Z4).SELECTED DRAWING: Figure 3
Owner:CELWISE AB
Process and equipment for coating film in narrow-mouth container
The invention discloses a film coating process and equipment in a narrow-mouth container, and relates to the technical field of paper container preparation, and the equipment comprises a film coating system, a mold closing system, a vacuum system, a heating system, an adjusting system and a control system. The polylactic acid air bag is adopted as a film covering raw material, so that the produced paper-plastic product has biodegradability, the produced product can be naturally degraded, and the problems that the paper-plastic product is difficult to recycle and treat are solved. According to the invention, the polylactic acid air bag is attached to the inner wall of the molded pulp container by directly utilizing the characteristic that polylactic acid becomes soft and generates colloid after being heated, so that the influence on the volume of the container can be reduced as much as possible, and the environment-friendly characteristic is better. The environment-friendly characteristic and the physical and mechanical properties of the paper mold can be obviously improved, and the application range of the paper mold is expanded. By optimizing and innovating a film laminating process and equipment, a more environment-friendly liquid container can be prepared, and the development and the use of the paper pulp molded container are more in line with the requirements of sustainable development.
Owner:YONGFA (JIANGSU) MOLDING PACKAGING TECH CO LTD
Capsule for the preparation of a beverage
A biodegradable and / or compostable capsule for use with a beverage preparation machine (10) for preparing a beverage and / or foodstuff thereof is disclosed. The capsule comprises a cup-shaped body (1) and a closing membrane (2) for closing the cup-shaped body, both elements defining a closed cavity for a beverage and / or foodstuff ingredient, preferably roast and ground coffee, and a liner (20) or a coating having barrier function providing barrier function to the cup-shaped body. The cup-shaped body is made of cellulose-based material, preferably molded pulp-based material and comprises a bottom wall (4), a tubular lateral side wall (5), an annular flange (3) connected to the lateral wall for the closing membrane to seal thereon, and an outwardly extending rim portion (6) connected to the annular flange. The rim portion is made of cellulose-based material and comprises a curved and / or curled end portion (6A) comprising a treated region in which the cellulose-based material has a porosity that is less than 40%, preferably between 0% to 25%.
Owner:SOCIETE DES PRODUITS NESTLE SA
Efficient and energy-saving paper pulp molding drying machine
The utility model provides an efficient and energy-saving paper pulp molding dryer. The efficient and energy-saving paper pulp molding drying machine comprises a supporting plate, the top of the supporting plate is fixedly connected with a drying box, and the side face of the drying box is fixedly sleeved with a ventilation hood. According to the efficient and energy-saving molded pulp forming dryer, the adsorption plate is arranged, when molded pulp is dried, hot air is conveyed into the drying box, at the moment, the hot air can bake the molded pulp in the drying box, water in the molded pulp is heated and evaporated to form water vapor, and the molded pulp is dried. The water vapor is conveyed into the drying box through the exhaust pipe, so that an adsorption plate adsorbs and dries the water vapor, the water vapor drying treatment effect is achieved, the problem that the humidity of the paper pulp mold is increased due to the fact that the water vapor is detained around the paper pulp mold for a long time is solved, and the drying speed of the paper pulp mold is increased; and the drying efficiency of the dryer is improved.
Owner:DEAN ZHULI INTELLIGENT CONTROL ENVIRONMENTAL PROTECTION TECH CO LTD
Capsule for the preparation of a beverage
A biodegradable and / or compostable capsule for use with a beverage preparation machine for preparing a beverage and / or foodstuff thereof is disclosed. The capsule comprises a cup-shaped body and a closing membrane for closing the cup-shaped body, both elements defining a closed cavity for a beverage and / or foodstuff ingredient, preferably roast and ground coffee, and a liner or a coating having barrier function, providing barrier function to the cup-shaped body. The cup-shaped body is made of cellulose-based material, preferably molded pulp-based material and comprises a bottom wall, a tubular lateral side wall, an annular flange connected to the lateral wall for the closing membrane to seal thereon, and an outwardly extending rim portion connected to the annular flange. The annular flange is made of cellulose-based material and comprises a first portion in which the cellulose-based material has a porosity comprised between 30% and 70%, preferably between 50% and 70% and the first portion of the annular flange cooperates with an edge of a capsule enclosing member of the beverage preparation machine for improving leak tightness during the preparation of the beverage.
Owner:SOCIETE DES PRODUITS NESTLE SA
Biodegradable pulp packaging products from natural fibers
A molded pulp product formed from the molding of a three-dimensional pulp slurry. The pulp slurry comprises a natural fiber composition of virgin fibers which have not been recycled and are derived from plant materials. The natural fiber composition includes hemp fibers which have been micronized to suitable length and combined with pulverized hemp shive to form a fibrous matrix. The molded pulp product is formed from a vacuum molding process, thermoforming process, custom air-burst molding process, or other molding process wherein the slurry is applied to a three-dimensional mold and a three-dimensional product is formed. The resulting packaging product is one hundred percent biodegradable.
Owner:PAPACKS SALES GMBH
Telescopic hemming internal expansion device, hemming equipment and hemming method
ActiveCN115302856BGuaranteed tightnessImprove sealingMechanical working/deformationPaper/cardboard articlesMolded pulpRotational axis
The present invention relates to a telescopic hemming device, hemming equipment and hemming method for a pulp molded container cover. It solves the defects of the prior art such as unreasonable design. The telescopic hemming device for the pulp molded container cover includes: a fixed air supply seat; a rotating shaft in an upright state; the rotating shaft passes through the fixed air supply seat and the rotating shaft can rotate relative to the fixed air supply seat; a hemming positioning seat fixed to the top of the rotating shaft; a plurality of telescopic hemming blocks; the telescopic hemming blocks are evenly distributed in a circle with the axis of the hemming positioning seat, and the telescopic hemming blocks translate on a plane perpendicular to the axis of the hemming positioning seat. The advantages of the present application are: the pulp container cover after hemming processing can be quickly removed and the inner diameter of the inner convex part will not expand during the removal process, ultimately ensuring the sealing of the pulp molded cover on the cup.
Owner:ZHEJIANG SHURCON MFG
Drying device for paper pulp molded product production
The utility model relates to the technical field of molded pulp products, in particular to a drying device for producing molded pulp products, which comprises a drying box, a first support frame is arranged in the drying box, a first conveyor belt body is rotatably arranged on the first support frame, and a second conveyor belt body is movably arranged above the first conveyor belt body. A first drying device is arranged below the first conveying belt body, and a second drying device is arranged above the second conveying belt body; and an exhaust device is arranged at the top of the drying box. According to the drying device for producing the paper pulp molded products, the products can be prevented from being blown away from the conveying belt body during drying.
Owner:XINYANG ZEXING TECHNOLOGY CO LTD
Molded pulp suction mold capable of uniformly sucking pulp
ActiveCN222275098UImprove suction capacitydischarge fullyTextiles and paperMolded pulpSuction equipment
The pulp sucking mold comprises a base and a support, the support is fixedly arranged outside the base, a Y-shaped pipe fixedly penetrates through the rear end of the outer portion of the base, and an extrusion assembly is arranged at the top of the support. Through the design of the squeezing function, paper pulp is repeatedly squeezed by the pressing plate, so that liquid in the paper pulp is fully discharged, the discharged liquid can be conveniently sucked by suction equipment, and the paper pulp suction effect is improved through the device provided by the utility model. According to the utility model, through the function design of reverse squeezing, the whole part of the paper pulp can be completely squeezed, so that the paper pulp squeezing efficiency is improved, namely, the effect of discharging the whole liquid in the paper pulp to the outside is improved, and meanwhile, the paper pulp sucking efficiency is also improved.
Owner:DEAN ZHULI INTELLIGENT CONTROL ENVIRONMENTAL PROTECTION TECH CO LTD
Paper pulp molding waste recycling device
The invention provides a paper pulp molding waste recycling device, and relates to the technical field of molding waste recycling. Two crushing rollers are rotationally arranged on the crushing box, the two crushing rollers are meshed with each other, a first gear is welded to a rotating shaft of each crushing roller, and the two first gears are meshed with each other; a base is welded to the left end of the smashing box and is of an L-shaped structure, a first motor is fixed to the base, and an output shaft of the first motor is fixed to a rotating shaft of the smashing roller on the front side. When a gear rotates, the gear pokes a stress rod to enable two shearing plates to move back and forth in a reciprocating mode, molding waste is pre-sheared, follow-up smashing work is facilitated, the waste can be preliminarily treated into the shape easier to smash, the overall smashing efficiency is further improved, and the problems that the smashing structure is single, and the smashing efficiency is high are solved. The problems that the crushing effect on the large wood-plastic waste is not thorough enough, waste fragments cannot be screened after crushing, and the crushed large waste cannot be crushed again are solved.
Owner:YANCHENG LIJIE PACKAGING PRODUCTS CO LTD
Paper pulp molding thermal forming device with waste heat utilization system
The invention provides a pulp molding thermal forming device with a waste heat utilization system, which comprises a forming machine lower shell, a forming machine upper shell, a hydraulic system, a hot pressing upper mold heating system, a hot pressing lower mold heating system, the waste heat utilization system, a sliding table and a steam-water separation system. The waste heat utilization system has the following beneficial effects that the multiple heat exchangers in the heat exchange area are connected with the cold water inlet, the cold air inlet, the hot water outlet and the hot air outlet through the multiple circulating inlet pipes and the multiple circulating outlet pipes to form a cold part structure of the whole waste heat utilization system; the interior of the loading base is divided into two heat exchange areas to form a heat part structure of the whole waste heat utilization system; according to the waste heat utilization system, cold water and cold air can be synchronously heated, two heat sources of hot water and hot air are finally obtained, follow-up waste heat recycling is facilitated, and meanwhile energy waste and environmental pollution caused by direct steam discharging are effectively avoided.
Owner:WING FAT (HENAN) MOLDED FIBER TECH DEV CO LTD
Paper pulp molding mold
Owner:沈勇
Paper pulp molding mold
The utility model discloses a paper pulp molding mold which comprises a workbench, the bottom of the workbench is fixedly connected with a pulp frame, the interior of the pulp frame is fixedly connected with a lifting inner column, the top of the lifting inner column is fixedly connected with a molding frame, and the top of the workbench is fixedly connected with a liquid pumping device. And a liquid extraction opening of the liquid extraction equipment is fixedly connected with a liquid extraction pipe. By means of the workbench, the slurry frame, the lifting inner column, the shaping frame, the liquid pumping device, the liquid pumping pipe and the liquid discharging pipe, the pulp molding mold can be used more conveniently, slurry in the mold can be rapidly cleaned out when the mold is cleaned, workers do not need to manually collect and treat the slurry, and therefore the working content of the workers is reduced, and the working efficiency is improved. And the working complexity of workers is reduced, the follow-up mold cleaning speed is increased, the follow-up work progress is accelerated, the overall work efficiency of work is improved, and long-term use of the paper pulp molding mold is facilitated.
Owner:GUANGZHOU YUHE TRADE CO LTD
A polyvinyl alcohol / nanocellulose / ferric tannate-based high-strength food packaging material
A polyvinyl alcohol / nanocellulose / tannic acid iron-based high-strength food packaging material disclosed in the present invention relates to the preparation and development technology field of food packaging materials, and the materials include polyvinyl alcohol (PVA), hydrophobic quaternary ammonium salt functionalized nanocellulose (CNF-QAS) and tannic acid iron (TA-Fe), and the mass proportion of CNF-QAS is 1% to 7%, and the mass proportion of TA-Fe is 0.4% to 1% (all in terms of PVA mass). Its preparation includes using QAS for the modification of CNF and preparing CNF-QAS, adding TA-Fe after mixing with PVA, and magnetic stirring evenly, and obtaining after drying. Its macroscopic form can be a film, electrospun fiber, aerogel, paper and paperboard or used as a powder additive in pulp molding materials. The above-mentioned material has good biocompatibility, mechanical properties, water vapor and oxygen barrier properties, antibacterial properties and food preservation properties. Under near-infrared laser triggering, the material has high precision and broad-spectrum antibacterial activity; and the preparation process is both economical and simple, and can be widely used in non-directly imported foods such as fruits and vegetables.
Owner:CHINA NAT PULP & PAPER RES INST CO LTD
Cold extrusion turnover molding type pulp molding automatic machine
The utility model belongs to the technical field of paper pulp molding machines, and particularly relates to a cold extrusion turnover molding type paper pulp molding automatic machine which comprises a bottom frame, a machine frame is arranged on the bottom frame, a molding pulp box is arranged on the bottom frame, a molding die holder is arranged on the machine frame, a guide rail is fixedly connected to the machine frame, and the guide rail is fixedly connected to the machine frame. A hydraulic station is arranged on the machine frame, a hot-pressing lower die assembly is arranged on the machine frame, a hot-pressing upper die assembly is arranged on the machine frame, and a driving oil cylinder is arranged on the machine frame. According to the utility model, the wet blank is directly delivered to the hot-pressing lower die through the forming die, so that the wet blank is prevented from passing through a transfer die, a transfer die is saved, and the operation cost is reduced. The net face of the wet blank faces upwards, the surface is bright after hot pressing, the hot pressing lower mold discharges water vapor, a large amount of carbonized dirt can be smoothly discharged under the gravity effect, the probability that black spots exist on the surface when a product is demolded is reduced, and the product percent of pass is improved.
Owner:GUANGDONG DARWAI TECH CO LTD
All-bamboo fiber oil-proof paper pulp molded product and preparation method thereof
ActiveCN119411422AGood oil resistancehigh purityWater-repelling agents additionPaper/cardboardMolded pulpFiber
The invention discloses a preparation method of an all-bamboo fiber oil-proof paper pulp molded product. The invention relates to the technical field of paper pulp molded products. The method comprises the following steps: processing a bamboo pulp board raw material to obtain long fiber pulp; 3%-3.5% of an anionic oil-proofing agent, 3% of a waterproof agent and 0.03% of a cationic retention aid are added into the long fiber pulp for pulp preparation, and blended pulp with the pulp concentration being 0.5% is obtained; the preparation method comprises the following steps: blending pulp, carrying out vacuum pulp suction molding on the blended pulp to obtain a paper pulp molding wet blank with the water content of 70-80%, carrying out hot pressing treatment on the wet blank to obtain a semi-finished product with the dryness of more than 90%, and trimming to obtain the full-bamboo fiber oil-proof paper pulp molding product. The oil-proof performance of the product is improved by screening out impurity cells and adding the cationic retention aid.
Owner:SICHUAN HUANLONG NEW MATERIAL +1
Fluorine-free oil-proof agent for paper pulp molding and preparation method of fluoride-free oil-proof agent
The invention discloses a fluoride-free oil-proof agent for paper pulp molding and a preparation method thereof, and belongs to the technical field of paper pulp molding materials. The fluoride-free oil-proof agent is prepared from the following raw materials in parts by weight: 40 to 60 parts of long-chain alkane, 10 to 20 parts of short-chain alkane, 10 to 15 parts of film-forming agent, 5 to 10 parts of modified polysilazane, 3 to 7 parts of nano material, 1 to 3 parts of chitosan derivative, 0.1 to 3 parts of cross-linking agent, 6 to 10 parts of filler and 60 to 100 parts of solvent. Wherein the modified polysilazane is prepared by reacting polysilazane with methyltriethoxysilane and 3-halogenated propylene under the action of a catalyst and chloroplatinic acid isopropanol. The preparation method comprises the following steps: mixing long-chain alkane, short-chain alkane and a solvent, and heating to react; other components are mixed and subjected to ultrasonic treatment; and mixing the two mixtures under ultrasonic and pressure conditions. The fluoride-free oil-proof agent provided by the invention is environment-friendly and safe, has excellent oil-proof performance, and is suitable for surface treatment of paper pulp molded products.
Owner:SHENZHEN YANMO TECHNOLOGY HOLDINGS CO LTD
Fiber synergistic copolymer as well as preparation method and application thereof
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.
Owner:DU BAI CHENG NEW MATERIAL TECH (SHANGHAI) CO LTD +3
Pulp molding surface spraying system and spraying process
The invention belongs to the technical field of spraying equipment, and mainly relates to a paper pulp molding surface spraying system and process, and the spraying system comprises a feeding mechanism used for conveying products; the spraying mechanism comprises a working cavity and a spraying head arranged on one side of the working cavity, a spraying platform used for fixing a product is horizontally and rotationally assembled in the working cavity, and the spraying head is used for spraying paint to the product; the drying mechanism is used for drying the sprayed product; the transverse moving manipulator enables the products to be transferred among the feeding mechanism, the spraying mechanism and the drying mechanism; and the receiving mechanism is used for receiving the dried products. A static visual angle blind area is broken through a dynamically rotating spraying platform, a transverse moving mechanical arm accurately transfers and maintains the posture of a product, and a drying link is matched with the drying characteristic of a coating, and the three-dimension synergistic effect of spraying process control, coating leveling assistance and follow-up process protection is achieved; and the problem of non-uniform spraying caused by complex structure, poor coating flowability and much manual intervention of the product is systematically solved.
Owner:HETRUN CHEMICAL LTD CO
Wet blank flipping method for manufacturing molded pulp products and pulp molding machine
A wet blank flipping method for manufacturing pulp molded products, which follows these steps: after the wet blank is formed in the suction filtration forming mold, it is transferred to the hot-pressing shaping device for hot-press drying and shaping to create pulp molded products, characterized in that: said transfer is done using a first wet blank transfer device and a second wet blank transfer device to move the wet blank from the suction filtration forming mold to the hot-pressing shaping device; wherein, the first wet blank transfer device extracts the wet blank from the suction filtration forming mold and transfers it to the second wet blank transfer device, which then moves the wet blank to the hot-pressing shaping device.
Owner:EURASIA EP MACHINERY +1
Biomass-based degradable waterproof and oilproof coating as well as preparation method and application thereof
The invention discloses a biomass-based degradable waterproof and oilproof coating as well as a preparation method and application thereof. The biomass-based degradable waterproof and oil-proof coating is composed of a waterproof coating and an oil-proof coating, and the waterproof coating is composed of a stearic acid emulsion, nano cellulose, a waterproof agent, an inorganic filler, a dispersant, a defoaming agent, a coalescing agent, a pH regulator and water. The oil-proof coating is prepared from natural resin, plant-based fatty acid ester, chitosan, nano cellulose, a waterproof agent, an oil-proof agent, inorganic filler, a dispersing agent, a defoaming agent, a preservative, a pH regulator and water. The biomass-based degradable waterproof and oil-proof coating has the advantages that the raw materials are natural in source, degradable and convenient to use, a formed coating has excellent waterproof and oil-proof performance and excellent thermal stability, and the like, can be used for products needing waterproof and oil-proof performance such as paper pulp molded products, and is suitable for large-scale industrial production and application.
Owner:GUANGZHOU YINGCHUANG TECH CO LTD