Abstract

The present invention provides a method for preparing a conductive silk fibroin material, comprising the steps of: (1) preparation of a high-molecular-weight silk fibroin solution; (2) preparation of an insoluble silk fibroin material; (3) surface treatment of the silk fibroin material; (4) oxidation of the silk fibroin material; and (5) in-situ oxidative polymerization of 3,4-ethylenedioxythiophene on the surface of the graft-modified silk fibroin material. In the present invention, a conductive composite film grafted with 3,4-ethylenedioxythiophene on the surface is prepared, and the surface resistance is 100 to 5000 ohms. The preparation process is simple and mild, and the obtained conductive silk fibroin material can be used as a flexible electronic device, especially as a device for measuring human blood glucose level and heartbeat.

IPC Classes  ?

• C08G 63/42 - Cyclic ethers; Cyclic carbonates; Cyclic sulfites; Cyclic orthoesters
• C08J 7/16 - Chemical modification with polymerisable compounds
• C08J 5/18 - Manufacture of films or sheets
• C08J 7/14 - Chemical modification with acids, their salts or anhydrides
• H01B 1/12 - Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances organic substances

Abstract

The invention relates to a water-repellent and lipophilic composite needle-punched nonwoven fabric and a preparation method thereof. The method comprises the following steps: blending a PET fiber and a polyolefin-based fiber in a mass ratio of 3:1-1:3, and performing needle punching to obtain a composite needle-punched nonwoven fabric; carrying out hot-drying treatment on the composite needle-punched nonwoven fabric at 110-160° C. for 40-90 min; and carrying out water-repellent finishing on the hot-dried fabric using 50-70 mL/L of an aqueous solution of a modified resin-based fluorine-free waterproofing agent, and drying to obtain the water-repellent and lipophilic composite needle-punched nonwoven fabric, wherein the water-repellent finishing is dip rolling, the air pressure is 1.8 kPa and the liquid carrying rate is 160-230%. The preparation method of the invention is simple, and the prepared composite needle-punched nonwoven fabric has significantly improved water repellency, lipophilicity and tensile strength compared with the fabric before treatment.

IPC Classes  ?

• D06N 3/00 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
• D04H 1/43 - Acrylonitrile series
• D04H 1/4291 - Olefin series
• D04H 1/435 - Polyesters
• D04H 1/46 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
• D04H 3/005 - Synthetic yarns or filaments
• D04H 3/011 - Polyesters
• D04H 3/105 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically by needling
• D04H 3/153 - Mixed yarns or filaments
• D06M 13/525 - Embossing; Calendering; Pressing
• D06M 15/00 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials with macromolecular compounds; Such treatment combined with mechanical treatment
• D04H 1/4382 - Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
• D06B 1/14 - Applying liquids, gases or vapours on to textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller
• D06M 101/30 - Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
• D06M 101/32 - Polyesters

Abstract

2 fluid and an intermediate thereof. The reactive disperse dye has a longer alkane-chain bridging group between a chromophoric parent structure and an active group of the dye, which effectively promotes the donating-withdrawing effect on the electron cloud in the conjugated system, enhances the hyperchromic effect, effectively reduce the influence of the active group itself and its reaction on the dye coloring system, improves the color and stability against acid and alkali of the dye, and facilitate the improvement of the compatibility of the dye with supercritical fluid and the dyeing performance for natural fibers as well. The invention also discloses an intermediate of the reactive disperse dye, and a method for preparing the reactive disperse dye.

IPC Classes  ?

• C09B 62/085 - Monoazo dyes
• D06P 1/382 - General processes of dyeing or printing textiles or general processes of dyeing leather, furs or solid macromolecular substances in any form, classified according to the dyes, pigments or auxiliary substances employed using reactive dyes with a reactive group directly attached to the heterocyclic group
• C07C 245/08 - Azo compounds, i.e. compounds having the free valencies of —N=N— groups attached to different atoms, e.g. diazohydroxides with nitrogen atoms of azo groups bound to carbon atoms of six-membered aromatic rings with the two nitrogen atoms of azo groups bound to carbon atoms of six-membered aromatic rings, e.g. azobenzene
• C07D 251/44 - One nitrogen atom with halogen atoms attached to the two other ring carbon atoms
• D06P 1/94 - General processes of dyeing or printing textiles or general processes of dyeing leather, furs or solid macromolecular substances in any form, classified according to the dyes, pigments or auxiliary substances employed using dyes dissolved in solvents which are in the supercritical state

Abstract

Provided is a preparation method for an electrically conductive fibroin material. The preparation method comprises the following steps of: (1) preparing a solution of high molecular weight fibroin; (2) preparing an insoluble fibroin material; (3) surface-treating the fibroin material; (4) oxidizing the fibroin material; and (5) carrying out in-situ oxidative polymerization with 3,4-ethylenedioxythiophene on a surface of the fibroin material after graft modification.

IPC Classes  ?

• C08J 7/16 - Chemical modification with polymerisable compounds
• C08J 7/14 - Chemical modification with acids, their salts or anhydrides
• C08J 5/18 - Manufacture of films or sheets
• C08L 89/00 - Compositions of proteins; Compositions of derivatives thereof

Abstract

Disclosed are a degradable suture thread having a barbed structure and a preparation method. The barbed suture thread is a surgical suture thread which has a barbed structure and which is formed by using a silk fibroin solution as "cement" and a degummed silk surgical suture thread as a "reinforcement bar" and by pouring and drying same in a mould; and the suture thread has the advantages of good biocompatibility, being degradable, a stable tissue anchoring effect, being free from knotting, excellent mechanical properties, a low production cost, etc.

IPC Classes  ?

• A61B 17/06 - Needles; Holders or packages for needles or suture materials
• A61L 17/08 - At least partly resorbable materials of animal origin, e.g. catgut, collagen
• A61L 17/10 - At least partly resorbable materials containing macromolecular materials
• A61L 17/14 - Post-treatment to improve physical properties

Abstract

A preparation method for a metal nanocluster wrapped with sericin protein, comprising the following steps of: uniformly mixing an aqueous solution of a metal nanoparticle precursor and an aqueous solution of sericin protein, then dropwise adding an aqueous solution of alkali to adjust a pH value of the solution to 11-13, performing reaction in absence of light, and after the reaction is completed, obtaining a solution of the metal nanocluster wrapped with the sericin protein. Moreover, a metal nanocluster is prepared by using the method. The metal nanocluster has good selectivity and sensitivity for different metal ions.

IPC Classes  ?

• B22F 9/24 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
• B22F 1/02 - Special treatment of metallic powder, e.g. to facilitate working, to improve properties; Metallic powders per se, e.g. mixtures of particles of different composition comprising coating of the powder
• C09K 11/02 - Use of particular materials as binders, particle coatings or suspension media therefor
• G01N 21/64 - Fluorescence; Phosphorescence
• B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites

Abstract

Disclosed in the present invention are flame-retardant silk prepared from flavone and a metal salt, a preparation method therefor, and application thereof. The method comprises the following steps: selecting a natural micromolecular flavone compound of which the structure at least meets one of three conditions that ring C contains 3-hydroxy, ring A contains 5-hydroxy, and ring B contains 3'-hydroxy and 4'-hydroxy, and treating silk at 2.5-3.5 pH and 70-90°Ϲ with a dipping adsorption method; and then dipping the silk into a metal salt solution having a 1-5 g/L concentration, treating the silk at 50-70°Ϲ with the dipping adsorption method, and performing washing and drying after the treatment is completed, thereby obtaining durable flame-retardant functional silk. In the present invention, a silk fabric having good flame-retardant performance is prepared from a natural plant extract and a metal salt, so as to avoid environmental pollution caused by using a traditional flame retardant containing nitrogen, phosphorus and halogen elements in production and use processes. The present invention has the advantages of being efficient, environmentally friendly, simple, and feasible.

IPC Classes  ?

• D06M 13/207 - Substituted carboxylic acids, e.g. by hydroxy or keto groups; Anhydrides, halides or salts thereof
• D06M 13/152 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen having a hydroxy group bound to a carbon atom of a six-membered aromatic ring
• D06M 13/165 - Ethers
• D06M 11/71 - Salts of phosphoric acids
• D06M 11/49 - Oxides or hydroxides of elements of Groups 8, 9,10 or 18 of the Periodic System; Ferrates; Cobaltates; Nickelates; Ruthenates; Osmates; Rhodates; Iridates; Palladates; Platinates
• D06M 11/56 - Sulfates or thiosulfates other than of elements of Groups 3 or 13 of the Periodic System

Abstract

Disclosed is a soluble polyelectrolyte complex and a method for the flame-retardant finishing of protein fibers using the soluble polyelectrolyte complex, wherein the present invention belongs to the technical field of the functional finishing of textiles. In the present invention, a soluble polyelectrolyte complex flame-retardant system is prepared from phytic acid and chitosan under strongly acidic conditions, and after being treated by means of a buffer solution, the phytic acid and the chitosan can be bonded to the surface of the protein fibers via ionic bonds and are attached to the surface of the protein fibers. The phytic acid and chitosan used as flame-retardant ingredients in the present invention are both natural products, there are abundant sources for the raw materials thereof, and the prepared polyelectrolyte complex is an environmentally friendly flame-retardant system. The present invention has a simple process, a short flow path and a low economic cost, and the prepared flame-retardant protein fibers have an excellent flame retardancy, a good water washing resistance and broad application prospects.

IPC Classes  ?

• D06M 15/03 - Polysaccharides or derivatives thereof
• D06M 13/292 - Mono-, di- or triesters of phosphoric or phosphorous acids; Salts thereof
• D06M 13/207 - Substituted carboxylic acids, e.g. by hydroxy or keto groups; Anhydrides, halides or salts thereof
• D06M 101/12 - Keratin fibres or silk

Abstract

Disclosed is a method for preparing a flame retardant silk, the method comprising the following steps: soaking silk in a tannic acid solution with a pH value of 3-4, and raising the temperature to 80-90℃ for a temperature holding treatment; and soaking the treated silk in a 2-6 g/L metal salt solution, and raising the temperature to 50-70℃ for a treatment to obtain the flame retardant silk. The method of the present invention endows silk with excellent flame retardant properties without adding any traditional flame retardants containing nitrogen, phosphorus or a halogen element, and can avoid the environmental pollution problems caused by nitrogen, phosphorus and a halogen element during the production and use of a flame retardant silk and after the flame retardant silk is abandoned due to the use of a traditional flame retardant. The method has the advantages of being environmentally friendly, highly efficient, and simple and easy to operate.

IPC Classes  ?

• D06M 11/00 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
• C07H 13/08 - Compounds containing saccharide radicals esterified by carbonic acid or derivatives thereof, or by organic acids, e.g. phosphonic acids by carboxylic acids having the esterifying carboxyl radicals directly attached to carbocyclic rings

Abstract

Disclosed is a composite barrier film, comprising an inner film (1) and an outer film (3), wherein the inner film (1) is a first electrospun film, the outer film (3) comprises a second electrospun film (4) and a casting film (2), the second electrospun film (4) is placed in a treatment solution to form the casting film (2), the material of the first or second electrospun film (4) comprises silk fibroin and/or a biocompatible polymer, and the material of the casting film (2) is silk fibroin. The preparation method for the composite barrier film involves: dissolving degummed silk fibroin and a biocompatible polymer in an organic solvent to obtain an electrostatic spinning solution, and then subjecting same to electrostatic spinning to obtain the first or second electrospun film (4); placing the second electrospun film (4) into a treatment solution, and forming a film by means of a casting method to obtain the outer film (3), wherein the treatment solution is an aqueous silk fibroin solution; and using the first electrospun film as the inner film (1), and compounding the outer film (3) and the inner film (1) to obtain the composite barrier film.

IPC Classes  ?

• A61L 27/44 - Composite materials, i.e. layered or containing one material dispersed in a matrix of the same or different material having a macromolecular matrix
• B32B 9/04 - Layered products essentially comprising a particular substance not covered by groups comprising such substance as the main or only constituent of a layer, next to another layer of a specific substance
• D01F 8/02 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the like; Manufacture thereof from cellulose, cellulose derivatives, or proteins

Abstract

Disclosed are a reactive flame retardant and a method for the durable flame retardant treatment of protein fibers using same. In the present invention, a reactive phosphorus-containing flame retardant is prepared using phytic acid, a polyalcohol such as pentaerythritol and a polycarboxylic acid such as 1,2,3,4-butanetetracarboxylic acid by means of an esterification reaction. The flame retardant has a high phosphorus content, contains a plurality of reactive groups in molecules, has a high reaction activity, and can crosslink with protein fibers during high-temperature baking without adding an additional crosslinking agent. Phytic acid used in the synthesis of the flame retardant of the present invention is a plant extract, and the obtained flame retardant is an environmentally friendly flame retardant. The protein fibers treated with the flame retardant not only have an excellent flame retardant performance, but also have a good washing resistance, which solves the problem of the poor washing resistance when phytic acid is used alone to treat protein fibers.

IPC Classes  ?

• D06M 13/292 - Mono-, di- or triesters of phosphoric or phosphorous acids; Salts thereof
• D06M 101/10 - Animal fibres

Abstract

22 fluid, and an intermediate thereof. A long alkane chain bridge group is comprised between a dye parent chromophore of the reactive disperse dye and an active group, the supply-absorption effect of an electron cloud of a conjugated system can be effectively promoted, the bathochromic effect is enhanced, the influences of the active group and a reaction thereof on a dye chromophore system are efficiently reduced, and the acid-alkali resistance stability of the dye color is improved. In addition, the compatibility between the dye and the supercritical fluid, and the dying performance on the natural fiber are also advantageously improved. Also disclosed are an intermediate of the reactive disperse dye, and a preparation method for the reactive disperse dye.

IPC Classes  ?

• C09B 62/085 - Monoazo dyes
• C07C 245/20 - Diazonium compounds
• C07C 245/06 - Azo compounds, i.e. compounds having the free valencies of —N=N— groups attached to different atoms, e.g. diazohydroxides with nitrogen atoms of azo groups bound to carbon atoms of six-membered aromatic rings
• D06P 1/18 - Azo dyes
• D06P 1/382 - General processes of dyeing or printing textiles or general processes of dyeing leather, furs or solid macromolecular substances in any form, classified according to the dyes, pigments or auxiliary substances employed using reactive dyes with a reactive group directly attached to the heterocyclic group

Abstract

The present invention relates to a water-repellent and lipophilic composite needle-punched non-woven fabric and a preparation method therefor. The method comprises the following steps: blending PET fiber with polyolefin fiber in a mass ratio of 3:1-1:3, and carrying out needling to obtain a composite needle-punched non-woven fabric; carrying out hot-drying treatment on the composite needle-punched non-woven fabric at 110-160°C, the treatment time being 40-90 min; carrying out padding and water-repellent finishing on the hot-dried fabric by using an aqueous solution of a modified resinous fluorine-free waterproof agent with the concentration of 50-70 mL/L, the air pressure of the padding and water-repellent finishing being 1.8 kPa, and the liquid rate being 160-230%; and drying to obtain the water-repellent and lipophilic composite needle-punched non-woven fabric. The preparation method is simple, the water repellency, lipophilicity and tensile strength of the prepared composite needle-punched non-woven fabric are obviously improved compared with the fabric before treatment.

IPC Classes  ?

• D04H 1/4382 - Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
• D04H 1/435 - Polyesters
• D04H 1/4291 - Olefin series
• D04H 1/46 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
• D06M 15/00 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials with macromolecular compounds; Such treatment combined with mechanical treatment
• D06M 101/20 - Polyalkenes, polymers or copolymers of compounds with alkenyl groups bonded to aromatic groups
• D06M 101/32 - Polyesters

Abstract

A multi-fiber blended thermal-insulating wadding, a preparation method therefor and an application thereof. The multi-fiber blended thermal-insulating wadding is prepared by mixing, by weight, 60-90% of viscose fiber, 0-30% of fine denier polyester fiber, and 10-40% of three-dimensional crimped polyester fiber; fiber materials are opened and mixed twice by an opener, and then are fed into a carding machine to be carded; a fiber net is treated by a random roller, so that the fibers are rearranged to be criss-cross in 12 directions, and then are introduced into a pre-needling machine to be pre-needled and into a lower needling machine for bottom surface needling. The multi-fiber blended thermal-insulating wadding has excellent wearability, can well meet the basic performance requirements of the thermal-insulating wadding, and has relatively high physiological comfort. In addition, the multi-fiber blended wadding enhances the bulkiness, air permeability and heat retention on the basis of a relatively low thickness by increasing the content of the three-dimensional crimped polyester fiber and the fine denier polyester fiber, thereby further reducing production costs.

IPC Classes  ?

• D04H 1/02 - Cotton wool; Wadding

Abstract

A composite material of trivalent titanium self-doped titanium dioxide nanoparticles-partially reduced graphene oxide nanosheets and a preparation method therefor, wherein the composite material is in the form of a powder, the powder particles thereof comprise the partially reduced graphene oxide nanosheets as a substrate and the trivalent titanium self-doped titanium dioxide nanoparticles as a loading substance, and the trivalent titanium self-doped titanium dioxide nanoparticles are uniformly deposited on the partially reduced graphene oxide nanosheets. The resulting composite material has both an obviously improved photoelectric performance, and also good chemical stability and reusability, the loading of the titanium dioxide nanoparticles on the graphene oxide nanosheets is realized by a one-step hydrothermal method, while realizing the self-doping of the trivalent titanium and the partial reduction of the graphene oxide, the resulting trivalent titanium doped titanium dioxide nanoparticles have a uniform size distribution, and the method thereof has a simple operation, mild conditions and a simple process, which has a good prospect in the fields of photocatalytic degradation of industrial organic dyes and hydrogen production from water by photolysis.

IPC Classes  ?

• B01J 21/06 - Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
• B01J 21/18 - Carbon
• B01J 37/10 - Heat treatment in the presence of water, e.g. steam
• B01J 37/16 - Reducing

Abstract

222 nanotube array into the bismuth sulfide and gold particle compound solution, and preparing bismuth sulfide-modified gold nanoparticles/a sodium dioxide nanotube structure by means of an oven method. The bismuth sulfide-modified gold nanoparticles/sodium dioxide nanotube structure prepared by the foregoing method may be applied to organic pollutant degradation catalysts, compound materials and non-enzymatic glucose sensors.

IPC Classes  ?

• B01J 27/04 - Sulfides
• C25D 11/26 - Anodisation of refractory metals or alloys based thereon
• G01N 27/48 - Systems using polarography, i.e. measuring changes in current under a slowly-varying voltage
• G01N 27/30 - Electrodes, e.g. test electrodes; Half-cells

Abstract

Disclosed is a method for preparing lignin-reduced carbon nitride modified by nano gold particles for efficiently treating organic pollution, the method involving first calcinating a precursor in a muffle furnace at a high temperature to prepare a semiconductor carbon nitride powder; then preparing the content of lignin according to a certain ratio, mixing same with the carbon nitride powder under acidic conditions, and adding a noble metal salt and reacting same for a period of time under water bath conditions; subjecting same to centrifugation and vacuum drying processing; and finally placing the dried powder in the muffle furnace for secondary calcination. The method not only has a simple process, low energy costs, and low raw material costs, but also has an outstanding effect with regard to the treatment of organic pollutants.

IPC Classes  ?

• B01J 27/24 - Nitrogen compounds
• B01J 23/52 - Gold
• B01J 27/20 - Carbon compounds
• B01J 37/16 - Reducing
• C02F 1/28 - Treatment of water, waste water, or sewage by sorption
• C02F 101/30 - Organic compounds

Abstract

Disclosed is an optical anti-counterfeiting mark based on fibroin, comprising a fibroin film layer and a gold film layer located on the fibroin film layer, wherein the area of the gold film layer is smaller than that of the fibroin film layer. A method for preparing the optical anti-counterfeiting mark pattern based on fibroin, comprising the following steps: a fibroin water solution is prepared; a base material is coated with the fibroin water solution to obtain a fibroin film; and a layer of a gold film is sputtered onto the fibroin film by using a mask plate to obtain the optical anti-counterfeiting mark pattern based on fibroin. By sputtering one layer of a thin gold (Au) film on the surface of the fibroin film, the anti-counterfeiting mark pattern appears under high humidity, the preparation is simple, and the manufacturing cost of the optical anti-counterfeiting mark can be markedly reduced.

IPC Classes  ?

• B42D 25/30 - Identification or security features, e.g. for preventing forgery
• B41M 3/14 - Security printing

Abstract

The present invention relates to a multi-pipe quantitative medium refill system of a supercritical fluid anhydrous dyeing machine, comprising a supercritical fluid medium reservoir, a cutoff valve, and a medium filter connected in series via a high-pressure main pipe, and at least two or more refill branches mutually independent and at the same time connected to the medium filter, each refill branch correspondingly comprises a booster pump, a supercritical fluid high-pressure mass flowmeter, a high-pressure ball valve, and dyeing units connected via a high-pressure branch pipe in the direction in which a medium progresses. The present invention, by means of the refill system employing the mutually independent multiple branches of a mass metering mode, effectively implements simultaneous and accurate quantitative medium refill with respect to the multiple independent dyeing units, and differentiated refill for different medium masses for the different dyeing units, thus overcoming the shortcomings of unreliability, inaccuracy, and low use efficiency of a conventional method and, at the same time, making a dyeing operation simple and scientifically feasible.

IPC Classes  ?

• D06B 9/02 - Solvent-treatment of textile materials solvent-dyeing

Abstract

A separation, recovery, and self-cleaning system of a supercritical fluid anhydrous dyeing machine, comprising a supercritical fluid medium reservoir (1), one or more dyeing units (4) connected side by side, a high-pressure pump (6), a stage-one separator (8), a stage-two separator (10), and a membrane separator (12) connected in series via a high-pressure pipe in the direction in which a medium progresses. Simultaneous highly efficient separation and recovery of dyeing mediums and residual dyes in multiple or selected independent dyeing units (4) are allowed, the dyeing units (4) can be uncovered directly upon completion, not only is post-dyeing cleaning with respect to the dyeing units (4) and a product allowed, but self-cleaning is also allowed, thus increasing the production and processing efficiency of the supercritical fluid anhydrous dyeing machine.

IPC Classes  ?

• D06P 1/81 - General processes of dyeing or printing textiles or general processes of dyeing leather, furs or solid macromolecular substances in any form, classified according to the dyes, pigments or auxiliary substances employed using dyes dissolved in inorganic solvents

Abstract

The invention discloses a sample dyeing container for waterless dyeing using a supercritical fluid, effectively replacing a conventional fixed supercritical fluid sample dyeing unit with a movable dyeing container, and achieving the goals of filling a medium into a plurality of dyeing units (dyeing containers) separately or simultaneously, and then increasing temperature and performing a sample dyeing process on all dyeing units together. Therefore, the invention can increase the efficiency of a sample dyeing process such as a high-pressure supercritical fluid waterless dyeing process, and increase the utilization rates of a corresponding pneumatic medium-filling, separating and recycling system, thus meeting the requirements of sample dyeing for textile waterless dyeing commercial production. Furthermore, the embodiment of the invention can be employed to stir dyes in the dyeing container to facilitate dissolution, and clean out the dyes remaining at the bottom of the container. The invention can overcome the shortcomings of conventional fixed supercritical fluid sample dyeing devices, apparatuses, or systems, including a low utilization rate, difficult cleaning, and inability to satisfy sample dyeing requirements in commercial production.

IPC Classes  ?

• D06B 23/10 - Devices for dyeing samples

Abstract

The invention discloses a movable dyeing container for supercritical fluid waterless dyeing, replacing a conventional fixed supercritical fluid sample dyeing unit with a movable dyeing container, and achieving the goals of filling a medium into a plurality of dyeing units (dyeing containers) separately or simultaneously, and then increasing temperature and performing a sample dyeing process on all dyeing units together. A medium outlet (10) is disposed at a lowest part of a round container bottom. Polytetrafluoroethylene (PTFE) is coated on the entire inner surface of the dyeing container, effectively reducing dyes attaching to the inner wall and edges of the dyeing container, and increasing cleaning efficiency. A porous blocking plate (7) at the round container bottom effectively prevents blockage of a textile product at the medium outlet (10) at the dyeing container bottom during filling or exhausting a medium, thereby successfully discharging, via the medium outlet (10), the processing medium and remaining dyes. The invention can overcome the shortcomings of conventional fixed supercritical fluid sample dyeing devices and matching systems, including a low utilization rate, difficult cleaning, and inability to satisfy sample dyeing requirements in commercial production.

IPC Classes  ?

• D06B 23/10 - Devices for dyeing samples

Abstract

A method for preparing an inverse opal colloidal crystal fiber. By vertical settlement of two colloidal spheres (micrometer scale or nanoscale), namely, a polystyrene shell-core structured spheres and silica particles, the strip-shaped inverse opal colloidal crystal fiber that is approximately 3.5 cm long and has adjustable width and thickness is obtained. The yield is high and the size is controllable. The method is fast and convenient. There is no crack on the surface of the fiber or inside the fiber, and the prepared inverse opal colloidal crystal fiber strip can be peeled off from the surface of a glass slide and is convenient to take and use.

IPC Classes  ?

• D01F 9/08 - Man-made filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material