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129results about How to "Dry surface" patented technology
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Substrate processing apparatus and substrate processing method
InactiveUS20150270146A1Supply is stoppedDry surfaceSemiconductor/solid-state device testing/measurementSemiconductor/solid-state device manufacturingOrganic solventEngineering
In parallel with a substrate heating step, a liquid surface sensor is used to monitor the raising of an IPA liquid film. An organic solvent removing step is started in response to the raising of the IPA liquid film over the upper surface of the substrate. At the end of the organic solvent removing step, a visual sensor is used to determine whether or not IPA droplets remain on the upper surface of the substrate.
Owner:DAINIPPON SCREEN MTG CO LTD
Apparatus for substrate handling
InactiveUS20050042768A1Preserve integrityDry substrate surfaceMaterial nanotechnologyPeptide librariesChemical reactionControl manner
Devices, apparatus and methods are disclosed for carrying out processing steps involved in chemical reactions such as hybridization reactions conducted on the surface of a substrate comprising chemical compounds such as biopolymer features. A device comprises a housing comprising a housing chamber. The housing comprises an opening through which a substrate may be inserted into the housing chamber. The device may also comprise a lift mechanism for moving the substrate in and out of the housing chamber in a controlled manner. At least one inlet may be in fluid communication with the housing chamber and at least one outlet may be in fluid communication with the housing chamber. Also disclosed are methods wherein the surface is brought into contact with a processing fluid; and, then, the surface is removed from contact with the fluid in a controlled manner at a rate that substantially eliminates droplet formation of the fluid on the surface of the substrate.
Owner:AGILENT TECH INC
Absorbent product
InactiveUS20110106036A1Increased free volumeDistanceSanitary towelsBaby linensMechanical engineeringMoisture
The invention refers to an absorbent product including a liquid permeable apertured top sheet facing the wearer during use, and a liquid-impermeable back sheet facing away from the wearer during use, whereby longitudinally extending textile-like edges are positioned on both longitudinal sides of the top sheet whereby the textile-like edges comprise apertures. Hereby, the textile-like edges will amongst others have the capacity to transport moisture that is formed at the interface between the textile-like edges and the wearer skin. Further, the apertures will allow a certain acquisition, i.e., liquid can be transported to the absorbent structure of the product.
Owner:SCA HYGIENE PROD AB
Pneumatic Tire
ActiveUS20130240101A1Improve steering stabilityImprove propertiesTyre tread bands/patternsNon-skid devicesEngineeringContact patch
The contact patch of the center land portion partitioned by the center side main grooves protrudes outward in the tire radial direction from the overall standard profile line of the tread portion. The maximum protruding amount is not less than 1.0% and not more than 2.5% of the tire width direction dimension of the center land portion. The contact patch of the intermediate land portion partitioned by the center side main groove and the shoulder side main groove protrudes outward in the tire radial direction from the standard profile line. The maximum protruding amount is not less than 0.7% and not more than 2.0% of the tire width direction dimension of the intermediate land portion. The maximum protruding amount of the center land portion is greater than the maximum protruding amount of the intermediate land portion.
Owner:YOKOHAMA RUBBER CO LTD
Substrate processing apparatus and substrate processing method drying substrate by spraying gas
InactiveUS20060123658A1Dry surfaceThorough removalDrying solid materials with heatDrying solid materials without heatEngineeringNitrogen gas
A first gas nozzle and a second gas nozzle are fixedly provided in the vicinity of the forward end of a nozzle arm. The nozzle arm is rotated along a locus R while a substrate rinsed with deionized water is rotated, for discharging nitrogen gas from the first and second gas nozzles. Visible moisture is loosely expelled from the upper surface of the substrate by spraying the nitrogen gas from the first gas nozzle, and moisture slightly remaining on a fine pattern or the like can also be completely removed by spraying the nitrogen gas from the second gas nozzle to the same region of the substrate as that sprayed with the nitrogen gas by the first gas nozzle. Consequently, the surface of the substrate can be stably and reliably dried. Thus, a substrate processing apparatus capable of stably and reliably drying the surface of the substrate is provided.
Owner:DAINIPPON SCREEN MTG CO LTD
Substrate processing apparatus and substrate processing method drying substrate by spraying gas
InactiveUS7017281B2Stably and reliably drying surface of substrateDry surfaceDrying using combination processesDrying solid materials with heatEngineeringProduct gas
A first gas nozzle and a second gas nozzle are fixedly provided in the vicinity of the forward end of a nozzle arm. The nozzle arm is rotated along a locus R while a substrate rinsed with deionized water is rotated, for discharging nitrogen gas from the first and second gas nozzles. Visible moisture is loosely expelled from the upper surface of the substrate by spraying the nitrogen gas from the first gas nozzle, and moisture slightly remaining on a fine pattern or the like can also be completely removed by spraying the nitrogen gas from the second gas nozzle to the same region of the substrate as that sprayed with the nitrogen gas by the first gas nozzle. Consequently, the surface of the substrate can be stably and reliably dried. Thus, a substrate processing apparatus capable of stably and reliably drying the surface of the substrate is provided.
Owner:DAINIPPON SCREEN MTG CO LTD
Method and apparatus for drying a semiconductor wafer
InactiveUS20120103371A1Accelerated dryingReduce surface tensionSemiconductor/solid-state device manufacturingCleaning using liquidsEngineeringNitrogen gas
A method and apparatus for drying semiconductor wafers uses hot isopropyl alcohol in liquid form at temperatures above 60° C. and below 82° C. The use of hot IPA better avoids pattern collapse and permits reduced consumption of IPA. The wafer temperature can be maintained by applying hot deionized water to the opposite wafer side and by evaporating the hot IPA from the wafer surface using heated nitrogen gas.
Owner:LAM RES AG
Apparatus for substrate handling
InactiveUS7517498B2Preserve integrityDry surfaceMaterial nanotechnologyPeptide librariesChemical reactionControl manner
Devices, apparatus and methods are disclosed for carrying out processing steps involved in chemical reactions such as hybridization reactions conducted on the surface of a substrate comprising chemical compounds such as biopolymer features. A device comprises a housing comprising a housing chamber. The housing comprises an opening through which a substrate may be inserted into the housing chamber. The device may also comprise a lift mechanism for moving the substrate in and out of the housing chamber in a controlled manner. At least one inlet may be in fluid communication with the housing chamber and at least one outlet may be in fluid communication with the housing chamber. Also disclosed are methods wherein the surface is brought into contact with a processing fluid; and, then, the surface is removed from contact with the fluid in a controlled manner at a rate that substantially eliminates droplet formation of the fluid on the surface of the substrate.
Owner:AGILENT TECH INC
Technology for processing formaldehyde-free and benzo(alpha)pyrene-free smoked meat product
ActiveCN102742857AOptimizing the smoking processShorten process timeMeat/fish preservationFood preparationPyreneBenzene
The invention belongs to the field of food processing and discloses a technology for processing a formaldehyde-free and benzo(alpha)pyrene-free smoked meat product. The technology comprises the following steps of 1, raw material selection and pretreatment, 2, pickling liquid preparation and pickling, 3, washing and drying in air, 4, pre-heating, drying and smoking, and 5, heat dissipation, vacuum packaging, labeling and warehousing. The technology adopts a sectional-type baking technology, improves product quality and solves the problems of meat product surface scabbing, drying and hardening caused by the traditional technology. The technology simplifies and optimizes the traditional smoking technology, shortens processing time, reduces a production cost, obviously improves product quality, and well solves the problems of meat product surface scabbing, drying and hardening caused by the traditional technology. Through the combination of the processes and use of a smoking solution which has effects of coloring and improving a taste and is safe, the formaldehyde-free and benzo(alpha)pyrene-free smoked meat product is obtained.
Owner:NANJING AGRICULTURAL UNIVERSITY
Substrate processing apparatus and substrate processing method
ActiveUS20170186599A1Expand smoothlyDry fastSemiconductor/solid-state device manufacturingEngineeringMechanical engineering
The controller is programmed to cause a low-surface-tension liquid supply unit to supply a liquid film of a low-surface-tension liquid to a front surface of a substrate so as to form a liquid film of the low-surface-tension liquid. The controller is programmed to control the substrate rotating unit and the inert gas supply unit so that an inert gas is supplied toward the rotational center position while rotating the substrate, thereby forming an opening spreading from the rotational center position to be formed in the liquid film, and enlarging the opening in a direction away from the rotational center position, and to control the landing-position changing unit to change the landing position of the low-surface-tension liquid to at least two positions except the rotational center position in accordance with enlargement of the opening so that the landing position is placed outside the peripheral edge of the opening.
Owner:DAINIPPON SCREEN MTG CO LTD
UV-curing adhesive with low Tg point and high permeability and preparation method thereof
ActiveCN105925238AReduce surface tensionImprove wettabilityNon-macromolecular adhesive additivesPolyureas/polyurethane adhesivesAdhesiveTemperature resistance
The invention provides a UV-curing adhesive with low Tg point and high permeability and a preparation method thereof. The UV-curing adhesive is prepared from the following raw materials in parts by weight: 10-30 parts of a self-prepared urethane acrylate prepolymer with low Tg point, 30-60 parts of aliphatic polyurethane acrylate with low Tg point, 20-50 parts of a reactive diluent with low Tg point, 0.5-5 parts of a leveling wetting agent, 2-4 parts of a photoinitiator and 1-3 parts of a silane coupling agent; the self-prepared urethane acrylate prepolymer comprises long-chain glycol, diisocyanate, a catalyst, a polymerization inhibitor, an antioxygen and hydroxyl acrylate resin; the molar ratio of long-chain glycol, diisocyanate and acroleic hydroxyl ester is 1:(1.82.0):(1.8-2.0); the catalyst, the polymerization inhibitor and the antioxygen respectively account for 0.01-0.1wt% of the urethane acrylate prepolymer with low Tg point. Compared with the prior art, the UV-curing adhesive has the vitrification temperature less than or equal to 50 DEG C, and has the performances of low surface tension is low, good wettability, good surface dryness, excellent tenacity, excellent dampness and humidity resistance, high temperature resistance and the like.
Owner:YANTAI SEAYU NEW MATERIALS CORP LTD
Method and device for drying substrate
InactiveUS6962007B1Smoothly introducedHigh densityDrying using combination processesDrying solid materials with heatEngineeringNozzle
A device for drying substrates which stores a plurality of substrate (1) and which comprises a processing container (3) to which cleaning fluid (2) after cleaning the substrates (1) is drained and an injection nozzle (5) for injecting drying fluid located at the terminating part of a feed pipe (4) through which liquid drying fluid is supplied, whereby an exhaust equipment is eliminated or simplified, and the drying fluid is fed smoothly.
Owner:TOHO KASEI CO LTD +1
Modified demineralized cortical bone fibers
ActiveUS20160361171A1Reduce swellIncrease wettabilityBone implantPharmaceutical delivery mechanismFiberBone Cortex
Surgical grafts for the repair of bone defects, more particularly, surgical grafts that include demineralized bone fibers, are disclosed. Methods for making such grafts and for increasing their wettability and ensuring uniform density are also disclosed.
Owner:MUSCULOSKELETAL TRANSPLANT FOUND INC
Pneumatic tire
InactiveUS20120060987A1Steering stabilityProcess stabilityTyre tread bands/patternsNon-skid devicesGround contactArea ratio
A pneumatic tire wherein a side from a tire ground contact center line having a smaller groove area ratio includes at least one circumferential main groove and at least one circumferential narrow groove. A depth of the circumferential narrow groove is not less than 60% and not more than 80% of a depth of the circumferential main groove closest to the tire ground contact center line. A width of the circumferential narrow groove is not less than 25% and not more than 40% of a width of the circumferential main groove closest to the tire ground contact center line. A distance from the tire ground contact center line to a center position in the tire width direction of the circumferential narrow groove is not less than 25% and not more than 35% of a tire ground contact width.
Owner:YOKOHAMA RUBBER CO LTD
Pneumatic Tire
ActiveUS20170282651A1Improve drivabilityDry surfaceTyre tread bands/patternsEngineeringMechanical engineering
A pneumatic tire comprises a tread portion which is asymmetric about a tire equatorial plane. The tread portion comprises a first land portion on a vehicle outer side, and a second land portion on a vehicle inner side. The first land portion comprises a circumferential narrow groove extending in a circumferential direction, a plurality of first auxiliary grooves that pass through the circumferential narrow groove and are disposed at periodic intervals in the circumferential direction, first blocks defined by the plurality of first auxiliary grooves, and first narrow grooves that pass through the circumferential narrow groove and are disposed in the first blocks. The second land portion comprises a plurality of second auxiliary grooves disposed at periodic intervals in the circumferential direction, second blocks defined by the plurality of second auxiliary grooves, and second narrow grooves disposed in the second blocks.
Owner:THE YOKOHAMA RUBBER CO LTD
Pneumatic tire
InactiveUS20090266457A1Reduce pattern noiseImprove driving stabilityTyre tread bands/patternsNon-skid devicesAutomotive engineeringPitch variation
Provided is a pneumatic tire which achieves both reduction of pattern noise and improvement in driving stability on a dry road surface. The pneumatic tire according to the present invention is designed to be mounted in such a way that a designated side of the tire faces to the outside of a vehicle, and is characterized in that: multiple block elements arrayed in a circumferential direction of the tire are formed in each of regions sectioned by an equator of the tire in a tread portion of the tire, the regions on inner and outer sides; the number of pitches of the block elements on the vehicle inner side is set to 60 to 80; the number of pitch variations of the block elements on the vehicle inner side is set to at least 4; the number of pitches of block elements on the vehicle outer side is set to 50 to 70; the number of pitch variations of the block elements on the vehicle outer side is set to at least 4; the number of pitches of the block elements on the vehicle inner side is set larger than the number of pitches of the block elements on the vehicle outer side; and a ratio of an average pitch length of the block elements on the vehicle outer side to an average pitch length of the block elements on the vehicle inner side is set in a range of 1.05 to 1.20.
Owner:YOKOHAMA RUBBER CO LTD
Acrylate structural adhesive being resistant against solvent scrubbing
InactiveCN107603497AGlue evenlyMix rubber evenlyNon-macromolecular adhesive additivesMacromolecular adhesive additivesEpoxyAdhesive
The invention relates to an acrylate structural adhesive being resistant against solvent scrubbing, which includes a component A and a component B; the component A is composed of: an acrylate monomer,methacrylic acid, toughening rubber, toughening filler, an accelerant, a stabilizer and a coupling agent; the component B is composed of: an oxidizing agent, epoxy resin, a plasticizer, filler and pigments. The component A and the component B are uniformly stirred according to the volume ratio of 10:1 to produce the acrylate structural adhesive. The acrylate structural adhesive is resistant against solvent scrubbing, is high in thixotropy and is good in infiltrability on an adhesion interface. In addition, after solidification, an adhesive layer is good in toughness and is high in adhesion force between anodised alumina, Al / Mg alloy, an electrophoresis ED layer, ABS / PC and the like plastic alloy, etc.
Owner:YANTAI DARBOND TECH
Pneumatic tire
ActiveUS20120312438A1Maintain stiffnessImprove steering stabilityTyre tread bands/patternsNon-skid devicesFront and back endsAutomotive engineering
Owner:YOKOHAMA RUBBER CO LTD
Pneumatic tire
ActiveUS20160144668A1Reduce the angleReduce rigidityTyre tread bands/patternsNon-skid devicesRoad surfaceEngineering
To provide a pneumatic tire which is improved in on-snow performance, while maintaining steering stability on dry road surface. The pneumatic tire is provided in a tread portion 2 with a pair of shoulder main grooves 3, a center main groove 4, shoulder land portions 6, and middle land portions 5. The middle land portions 5 are provided with middle lateral grooves 10 extending from the shoulder main grooves 3 toward the inside in the tire axial direction, while gradually decreasing the angle with respect to tire circumferential direction. The middle lateral groove 10 is provided with a groove bottom sipe 15 opened in the groove bottom.
Owner:SUMITOMO RUBBER IND LTD
Method for building high-efficiency regenerating and transforming system of Oryza sativaL. subsp. japonica 11
InactiveCN102220277AHigh induction rateEnough to transform the materialFermentationGenetic engineeringGenetically modified riceRice plants
The invention belongs to the field of genetic engineering of plants and discloses a method for building a high-efficiency regenerating and transforming system of Oryza sativaL. subsp. japonica 11 through cultivation of induction of embryogenic callus, subculture multiplication of embryogenic callus, transformation mediated by agrobacterium tumefaciens, cocultivation of embryogenic callus and agrobacterium tumefaciens, screening and cultivation of resistant callus and seedlings differentiation of resistant callus. The method has the advantages of simple technological processes, low production cost, and capabilities of obviously increasing the inductivity of the embryogenic callus, the subculture multiplication rate and the differentiation and regeneration rate of the embryogenic callus of the Oryza sativaL. subsp. japonica 11 and simultaneously shortening the period of obtaining regenerative rice plants; and on the basis, an improved agrobacterium tumefaciens-mediated method can be used for remarkably increasing the efficiency of obtaining the transgenosis rice plants and shortening the period of obtaining regenerative rice plants.
Owner:SOUTH CHINA UNIV OF TECH
Radiation-curable fiber-optic ring tail fiber packaging adhesive
ActiveCN104559811AFast curingDry surfaceNon-macromolecular adhesive additivesMacromolecular adhesive additivesFiberOligomer
The invention relates to a radiation-curable fiber-optic ring tail fiber packaging adhesive. The adhesive comprises the following components in percentage by weight: 35.5-70% of radiation curable oligomer, 15.5%-50% of an active diluent, 3-10% of a photoinitiator, 0.05-3% of a flatting agent, 0.01-0.5% of a defoaming agent and 0.05-1% of a polymerization inhibitor, wherein the sum of each component meets 100%. The radiation-curable fiber-optic ring tail fiber packaging adhesive is easy to rapidly fix and peel, prevents sliding and resists vibration and the production efficiency and success rate of fiber-optic ring and fiber-optic gyroscope can be significantly increased.
Owner:武汉长盈鑫科技有限公司
Water-absorbing wipe and manufacturing method thereof
Owner:XIAMEN YANJAN NEW MATERIAL CO LTD
Graphene-based 3D printing non-photocuring model wax and synthesis method thereof
InactiveCN108676370AHigh strengthImprove toughnessAdditive manufacturing apparatusHeat-exchange elementsParaffin waxSynthesis methods
The invention discloses graphene-based 3D printing non-photocuring model wax and a synthesis method thereof. The model wax comprises the following components in percentage by mass: 20-30% of #70 microcrystal wax, 20-360% of #64 paraffin, 30-40% of #58 paraffin, 3-10% of a modified rosin resin, 3-10% of a C5 petroleum resin, 2-5% of EVA (Ethylene Vinyl Acetate), 1-2% of a surfactant and 0.5-2% of graphene. After printing of a 3D printer, the non-photocuring model wax for 3D printing, which is disclosed by the invention, can be directly used as a cast mold of the field of precise casting of fired molds, has the advantages of being high in precision, excellent in mechanical property, good in surface property, good in stability, good in non-photocuring molding, and the like, and is simple andcontrollable in process; cast molds can be manufactured in a large scale; manufacturing procedures of wax molds can be greatly simplified; and demands of practical production can be well met.
Owner:DONGGUAN HENGTIAN NEW MATERIAL CO LTD
Ultraviolet curable water-based paint used for wooden products
InactiveCN104877552AFast curingNo pollutionAntifouling/underwater paintsPaints with biocidesWater basedAcrylic resin
The invention belongs to the field of paint and in particular relates to ultraviolet curable water-based paint used for wooden products. The water-based paint comprises the following raw materials in parts by weight: 40-65 parts of water-based polyurethane acrylate, 10-15 parts of rosin-based hyperbranched polyester acrylic resin, 5-10 parts of 1,6-hexanediol diacrylate, 5-10 parts of acrylic resin, 5-10 parts of nano aluminium oxide dispersion, 2-4 parts of photoinitiators, 0.2-0.5 part of levelling agent, 10-20 parts of water-based organic assistants, 0.2-0.5 part of anti-settling agent, 0.5-1 part of defoaming agent and 10-15 parts of graphene. The water-based paint can meet the requirements of high performance and environmental protection, has high gloss and longer valid time, and has good compatibility with ultraviolet curable resin.
Owner:CHENGDU NASHUO TECH
Tissue product, method of manufacture of a tissue product and apparatus for embossing a tissue ply
InactiveUS20070144694A1Improve visual appearanceProduced more cost-effectively without affecting the visual appearanceNon-fibrous pulp additionNatural cellulose pulp/paperEngineeringBiomedical engineering
A one-ply tissue product includes a first external surface and a second external surface, the first surface having a wet-formed pattern and the second surface having an embossed pattern imitating the wet-formed pattern. Additionally, also multi-ply tissue product is suggested comprising at least two plies including two outer plies, each outer ply having a first surface and a second surface, one outer ply having a wet-formed pattern on at least the first surface and the other outer ply having an embossed pattern on at least the first surface imitating the wet-formed pattern on the first surface of the one outer ply, both outer plies being brought together so that their respective first surfaces represent external surfaces of the multi-ply tissue product. Moreover, a corresponding method and an embossing unit are also disclosed.
Owner:SCA HYGIENE PROD AB
Water-based ink set for ink-jet recording
ActiveUS7674329B2Improve the problemLower performance requirementsDuplicating/marking methodsInksWater basedMagenta
According embodiments of the present disclosure, a water-based ink set for ink-jet recording is provided. The ink set may contain a black ink, a cyan ink, a magenta ink and a yellow ink. Each ink may contain a polyoxyethylene alkyl ether sulfonate.
Owner:BROTHER KOGYO KK
Ultraviolet curable water-based antibacterial paint used for wooden products
InactiveCN104877549AIncreased activity and range of applicationGood antibacterial propertiesAntifouling/underwater paintsPaints with biocidesChemistryRosin
The invention belongs to the field of paint and in particular relates to ultraviolet curable water-based antibacterial paint used for wooden products. The water-based antibacterial paint comprises the following raw materials in parts by weight: 40-65 parts of water-based polyurethane acrylate, 10-15 parts of rosin-based hyperbranched polyester acrylic resin, 5-10 parts of 1,6-hexanediol diacrylate, 5-10 parts of acrylic resin, 5-10 parts of nano aluminium oxide dispersion, 2-4 parts of photoinitiators, 0.2-0.5 part of levelling agent, 10-20 parts of water-based organic assistants, 0.2-0.5 part of anti-settling agent, 0.5-1 part of defoaming agent, 10-15 parts of graphene, 5-10 parts of nano titanium dioxide sol and 2-5 parts of silver ion solution. The water-based antibacterial paint can meet the requirements of high performance and environmental protection, has composite antibacterial ability and longer valid time, and has good compatibility with ultraviolet curable resin.
Owner:CHENGDU NASHUO TECH
Pneumatic Tire
InactiveUS20080135149A1Suppress in stabilityImprove rigidityTyre tread bands/patternsNon-skid devicesGroove widthEngineering
A pneumatic tire including a plurality of grooves which extend at least in the circumferential direction, and which are formed in a tread portion and sipes which are formed in a plurality of blocks formed by the grooves. In the pneumatic tire, the groove width of the sipe formed in each of the blocks constituting a center region of the tread portion is greater than the groove width of the sipe formed in each of the blocks constituting edge regions of the tread portion. At least the sipes formed in the blocks constituting the center region are three-dimensional sipes each having a zigzag shape extending in the width, circumferential and radial directions of the tire. Each of the three-dimensional sipes is provided with, on the inner side thereof in the tire radial direction, at least one cutout which has a length, in the tire radial direction, of 50 to 90% of the length of the three-dimensional sipe in the tire radial direction, and which has a length, in the tire width direction, of 1 to 5 mm.
Owner:BRIDGESTONE CORP
Substrate processing apparatus and substrate processing method
ActiveUS20100218791A1Shorten the time periodInhibition formationSemiconductor/solid-state device manufacturingCleaning using liquidsEngineeringMechanical engineering
A drying gas is supplied into a drying chamber in a substantially horizontal direction, an obliquely downward direction descendent from the substantially horizontal direction, or a vertically downward direction under a state where a wafer is immersed in a cleaning liquid in a cleaning tank. The wafer is moved from the cleaning tank into the drying chamber, with the drying gas being supplied into the drying chamber. At this time, the supply of the drying gas into the drying chamber is stopped, under a condition where a part of the wafer is immersed in the cleaning liquid stored in the cleaning tank. After the movement of the wafer into the drying chamber has been finished, a drying gas is supplied into the drying chamber in an obliquely upward direction ascendant from the substantially horizontal direction or a vertically upward direction.
Owner:TOKYO ELECTRON LTD
Bio-antimicrobial water-absorbing sanitary material and preparation method thereof
InactiveCN107432787AHigh antibacterial activityImprove antibacterial propertiesNon-adhesive dressingsAdhesive dressingsFluff pulpReverse osmosis
The invention discloses a bio-antimicrobial water-absorbing sanitary material, which is applied to medical dressing materials, sanitary napkins, sanitary towels and paper diapers, and a preparation method of the bio-antimicrobial water-absorbing sanitary material. An antimicrobial liquid-permeable surface layer, an antimicrobial functional absorbent core and a liquid-impermeable bottom layer are sequentially arranged from top to bottom in a superposed mode, wherein the antimicrobial liquid-permeable surface layer is a single-layer or double-layer non-woven fabric which is processed by virtue of a bio-antimicrobial agent, and the bio-antimicrobial agent is one or more of epsilon-polylysine and / or epsilon-polylysine hydrochloride, natamycin and nisin; the antimicrobial absorbent core comprises the bio-antimicrobial agent which is one or more of epsilon-polylysine, epsilon-polylysine hydrochloride, natamycin and nisin, a polymer absorbent, fluff pulp and plant extracts; and a porous air-permeable thin film serves as a backing layer. The bio-antimicrobial water-absorbing sanitary material has the advantages of being good in antimicrobial endurance, broad in antimicrobial spectrum, high in biological safety and low in reverse osmosis rate.
Owner:TIANJIN UNIV OF SCI & TECH
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