107results about "Solvent treatment with solvent recovery" patented technology

The invention relates to a supercritical carbon dioxide cheese dyeing kettle and a waterless supercritical carbon dioxide cheese dyeing method. In the dyeing kettle, when carbon dioxide fluid enters a distribution tray from an inlet, blades start rotating clockwise under the effect of pressure; inserted drill rods are driven to rotate by a rotation part; and the rotating speed of the inserted drill rods is increased along with the increase of pressure in a cylinder body. When a cheese is dyed, the cheese on the inserted drill rods is dyed at a speed of 0.2-0.5 r/s. When the rotating cheese is dyed, the cheese is subjected to the pressure of the fluid flowing out from a central shaft; the rotation and bicirculation of the cheese dyeing are realized; the uniform dyeing effect of the dyed cheese can be improved; and the migration ability and the diffusibility can be improved.

The invention is a producing system for making continuous dyeing by supercritical fluid, used in continuous industrialized production, comprising interconnected supercritical fluid suppliers, dyeing circulator and supercritical fluid recovery device, where the dyeing circulator comprises at least two integrated dyeing kettles. On the one hand, the invention combines the existing dyeing kettle and dye kettles into a device, namely integrated dyeing kettle, thus making it able to complete two process steps of dye dissolving and fabrics dyeing in the same kettle, reducing circulating losses of dye and supercritical fluid in pipeline and largely reducing energy consumption and raising production efficiency; on the other hand, it adopts at least two integrated dyeing kettles for alternatively and uninterruptedly dyeing for meeting the industrial continuous production requirement. And the invention further provides a production process for continuous dyeing by the producing system.

The present invention relates to a fluid waterless dyeing technique, in the concrete, it relates to a dyeing technique using carbon dioxide as dye carrier under the supercritical condition. The invented dyeing technique includes dyeing process and dyeing equipment. Its dyeing process includes the following steps: heating and pressurizing liquid CO2 in dyeing system and making said liquid CO2 into supercritical fluid; utilizing circulation pump to make CO2 be continuously and circularly reciprocated between dyeing tank and dye tank, dissolving dye while dyeing textile, then using new CO2 to wash dyed textile, after the dyed textile is washed, said equipment releases pressure, recovering CO2 and dye. Said dyeing equipment includes dyeing system and recovery separation system, said two systems one connected by means of pipeline.

The invention relates to a supercritical carbon dioxide hairball dyeing kettle which comprises a cylinder body and a hairball dyeing barrel body fixed in the cylinder body, wherein a movable sealing cover is fixed at the upper end of the cylinder body, and the lower end of the cylinder body is provided with a carbon dioxide liquid outlet; a carbon dioxide liquid inlet is arranged at the upper part of the cylinder body; a heating clamping sleeve is fixed outside the cylinder body; a heating medium outlet is arranged at the upper end of one side of the heating clamping sleeve, and a heating medium inlet is arranged at the lower end of the other side of the heating clamping sleeve; the supercritical carbon dioxide hairball dyeing kettle is characterized in that a hole III is formed in the wall of the hairball dyeing barrel body; a central pipe is fixed to the centre of the hairball dyeing barrel body, and at least one upper limiting cover is fixed to the central pipe; the central pipe has a multi-pore shaft structure; a hole I is formed in a supporting plate at the bottom of the barrel body; a central hole Ia is corresponding to an internal chamber of the central pipe; and a hole II is formed in the upper limiting cover. According to the supercritical carbon dioxide hairball dyeing kettle increased, the direct contacting surface area of the a hairball and the dyeing liquid can be increased, and improves the influence due to the gravity in hairball dyeing can be improved, and the dyeing speed and the dye pickup can be improved, as well as the dyeing uniformity is improved.

The invention relates to a supercritical carbon dioxide skein dyeing kettle which comprises a cylinder and a skein support. The skein support is fixed in the cylinder; a movable sealing cover is fixed at the upper end of the cylinder, a carbon dioxide fluid inlet is arranged at the lower end of the cylinder, and a carbon dioxide fluid outlet is further arranged on the upper portion of the cylinder; a heating jacket is fixed on the outer side of the cylinder; a heating medium outlet is arranged at the upper end of one side of the heating jacket, and a heating medium inlet is arranged at the lower end of the other side of the heating jacket. The supercritical carbon dioxide skein dyeing kettle is characterized in that the skein support consists of a bottom distributor, a supporting tube and two skein frames; the two skein frames are fixed on the supporting tube; the supporting tube is fixed on the bottom distributor and is of a porous shaft structure; a hole is arranged on the bottom distributor; and an inner cavity of the supporting tube corresponds to the hole I.

The invention relates to the field of textile dyeing equipment, in particular to a supercritical fluid spray-dyeing device which comprises spray nozzle groups, used fluid collectors, winding rollers and a tensioning component. A driving winding roller and a driven winding roller are respectively installed at two ends of an operation orbit determined by a dyeing process flow in the device and used for winding, supporting and driving objects to be dyed; the spray nozzle groups and the used fluid collectors are respectively installed at two sides of the dying process flow operation orbit according to the order of dying processes and are respectively connected with mechanisms of supercritical fluid generation, dying material dissolution and supercritical fluid medium recycling separation and storage; guide rollers are arranged at the intervals of the all spray nozzle groups or the spray opening surfaces of the all spray nozzle groups are used for supporting and tensioning the object to be dyed; and the spray nozzle groups comprise extracting spray nozzle groups, dyeing spray nozzle groups and cleaning spray nozzle groups. The invention has the advantages of simple structure, convenient and safe operation, low investment, reasonable and advanced flow, good dyeing uniformity and continuity as well as high dyeing quality and productivity.

The continuous dyeing supercritical fluid system for continuous industrial production includes one supercritical fluid supplying device, at least two dyeing circulation devices and one supercritical fluid recovering device communicated successively. Each of the dyeing circulation devices includes one dye kettle and one dyeing kettle communicated mutually. The continuous dyeing supercritical fluid system of the present invention performs alternate dyeing continuously and has high production efficiency.

The present invention relates to a supercritical carbon dioxide dyeing continuous production equipment and its continuous dyeing method for dyeing fabrics. Said equipment includes a dyeing circulation system device which is connected after preheater by means of pipeline, can be cut off by valve and can be independently operated and a dye and carbon dioxide recovery system deice which is placed after the above-mentioned dyeing circulation system device, can be cut off by valve and can be independently operated. Said dye and carbon dioxide recovery system also is communicated with carbon dioxide storage tank by means of pipeline. Besides, said invention also provides the concrete steps of said continuous dyeing method by utilizing the above-mentioned equipment.

The invention discloses a supercritical CO2 waterless dyeing system and a cloth dyeing method thereof. The method comprises the following steps of A, preparing and storing of CO2; B, cooling; C, pressurizing; D, heating, wherein a heating device is utilized for enabling CO2 to form supercritical fluid, and the supercritical fluid is heated to 120-150 DEG C; E, dyeing, wherein a circulating pump pushes a mixture of the supercritical fluid and dye to circularly flow inside a circulation channel, cloths inside a pressure kettle are dyed, the pressure inside the pressure kettle is 28-30 MPA, the temperature is 120-150 DEG C, the circulation flowing time is 20-40 min, and the circulation flow is not smaller than 10 M<3> per hour; F, pressure relieving, wherein a nanoscale color masterbatch is dissolved through the supercritical CO2 fluid, the cloths are dyed, and dyeing technological conditions such as pressure, temperature and time are optimized at the same time so as to improve the dyeing efficiency and dyeing quality.

The invention provides a waterless dyeing device and dyeing method thereof by utilizing activated dye for cotton cone yarns.The waterless dyeing device by utilizing activated dye for cotton cone yarns is characterized in that the waterless dyeing device comprises a main dye vat; the main dye vat is connected with an electric heating device by a pipeline; the electric heating device is connected with a main pump by a pipeline; the main pump is connected with a solvent storage device and a dye liquor distributor; the main dye vat is connected with a condenser by a pipeline; the condenser is connected with the solvent storage device and the dye liquor distributor by a pipeline; and the main dye vat is connected with a solvent separation device connected with solvent recovery devices by a pipeline. The waterless dyeing device and dyeing method thereof by utilizing activated dye for cotton cone yarns have following beneficial effects: waterless dyeing of purified cotton by utilizing organic solvents is achieved in order to avoid environmental pollution; utilized dyeing solvents featuring low toxicity, environment protection and high flash point, is above 80 DEG C in flash point; and there is no need to carry out anti-explosion operation on the dyeing device and place.

An system for anhydrous boiling, bleaching and dyeing using a supercritical carbon dioxide fluid and belongs to the field of textile. The system for anhydrous boiling, bleaching and dyeing of a supercritical carbon dioxide fluid provided by the present invention is provided with a co-solvent system, a boiling, bleaching and dyeing system, and a separation and recovery system which are specially designed. By means of uniform dispersion and dissolution of a co-solvent, dyestuff and carbon dioxide, boiling, bleaching and dyeing production of jute fiber rough yarn can be achieved; meanwhile, the system for anhydrous boiling, bleaching and dyeing using a supercritical carbon dioxide fluid integrates the three functions of boiling, bleaching and dyeing, which can complete the boiling, bleaching and dyeing procedures in one step, and has the characteristic of high-efficiency, thus solving the problems of high contamination and high energy consumption of the jute fiber boiling, bleaching and dyeing procedures.

The invention relates to a method for modifying continuous multistage cotton and linen yarns, which is characterized in that cotton and linen yarns are hanked and subjected to liquid ammonia modifying and drafting at the same time, and are then subjected to microwave drying and drafting simultaneously. The drafting is carried out during the liquid ammonia modifying and the microwave drying, so the cotton and linen yarns are modified through various modes of liquid ammonia, drafting, microwave and the like, and the softness, wrinkle resistance, crack resistance, smooth type, bulkiness, dyeing property and the like of the cotton and linen yarns can be improved.

The invention relates to a continuous multi-station cotton yarn modifying device and method. The modifying device comprises a conveyer belt; the conveyer belt is provided with a treatment box; at least one microwave generator, a first quick connector and a second quick connector are arranged on an end cover above the treatment box, wherein the first quick connector can be connected with a liquid ammonia transfer system positioned above a specified station of the treatment box, and the second quick connector can be connected with an ammonia transfer system and an air conveying system positioned above a specified station of the treatment box; and at least two groups of drafting mechanisms are arranged in the treatment box, wherein the left lead screw and the right lead screw of the first group of drafting mechanism are connected with a drafting driving system. The continuous multi-station cotton yarn modifying device disclosed by the invention can be used for modifying cotton yarns withliquid ammonia and drafting cotton yarns simultaneously, carrying out the operations of microwave drying and drafting simultaneously, and modifying cotton yarns by multiple methods of liquid ammonia,drafting, microwaves and the like; and according to the device and the method disclosed by the invention, the flexibility, wrinkle resistance, crack resistance, smoothness, bulkiness, chromaticity and the like can be improved.

The invention discloses a finishing kettle and a supercritical carbon dioxide anhydrous modification device and method for aramid fibers. An finishing unit inside the finishing kettle is cylindrical, and comprises a top seal cover, a bottom seal cover I and a bottom seal cover II in sequence from top to bottom, and the center of the top seal cover and the center of the bottom seal cover I are connected with a porous center tube; the bottom seal cover I and the bottom seal cover II form a mixing chamber, a carbon dioxide fluid inlet tube penetrates through the bottom seal cover I, enters the mixing chamber and is provided with a impeller stirrer at the tail end inside the mixing chamber, and an atomizer is arranged inside the impeller stirrer; a finishing agent inlet tube is connected to the carbon dioxide fluid inlet tube; an atomizing sprayer is arranged inside the finishing agent inlet tube. With the device, surface modification can be achieved for the aramid fibers; an atomizing finishing agent and supercritical carbon dioxide fluid are evenly mixed, so that functional modification processing is completed for the aramid fibers; meanwhile, with a gas-liquid separator, the liquefied finishing agent can be condensed and recovered, and finally anhydrous clean modification is achieved for the aramid fibers.

The invention discloses a flax roving supercritical CO2 biological enzyme bleaching device and a bleaching method thereof. The bleaching method comprises the steps that flax roving is bleached for 30-120 minutes in supercritical CO2 fluid with dissolved bio-enzyme bleach, at a temperature of 25-65 DEG C, a pressure of 15-25 MPa, and CO2 fluid flow of 10-50 g/min. The enzyme bleaching agent contains 0.2-3% (o. w. f) xylanase and 0.2-5% (o. w. f) glucose oxidase. By the adoption of the bleaching method, the whiteness of the flax roving can reach 45-70%, the weight loss rate is 7-12%, the adhesive residue is 9-15%, a single fiber breaking tenacity is 6.5-13.5 cN/dtex, and the elongation at the breaking is 5-8.5%. By the flax roving supercritical CO2 biological enzyme bleaching device and the bleaching method, a clean bleaching production of flax roving is achieved using CO2 instead of aqueous medium, the use of a large amount of chemical reagents such as hydrogen peroxide and sodium hypochlorite is avoided; the whole bleaching process is free of filth and zero in emission, and the modern living concept of fashion and green for flax is expressed.

The invention relates to a separation, recycling and self-cleaning system of a supercritical fluid dyeing machine. The system includes a supercritical fluid medium reservoir, one or more parallel dyeing units, a high-pressure pump, a primary separator, a secondary separator and a membrane separator sequentially connected. A dyeing medium and residual dye in dyeing units can be efficiently separated and recycled simultaneously, and when the separation and recycling is finished, each dyeing unit can be directly opened so that the dyeing units and products can be cleaned after dyeing, thereby improving the production and processing efficiency of supercritical fluid waterless dyeing and achieving simple operations, complete separation, stability and reliability and a blowback self-cleaning. The invention has a broad application prospect and practical significance in fundamentally addressing generation and emission of pollutants in the textile printing and dyeing industry and realizing energy conservation, consumption reduction, emission reduction and clean production.

The invention discloses a visualization system in a supercritical carbon dioxide dyeing device, which comprises the following working principles of: obtaining the concentration, speed, temperature, pressure and image information of carbon dioxide in a dye kettle and a dying kettle by a sensor and a camera; introducing data into a database and displaying the image information by a display screen in real time; processing the data in the database and displaying the data by the display screen in real time; observing whether the surfaces of fabrics are covered with partial dye in the dying kettle by the display screen, if so, introducing carbon dioxide into the system to sufficiently dissolve the dye, in addition, when the dying temperature and the pressure reach standard, discovering no dye residues in the dying kettle by the display screenand observing whether the dye is attached to the fabrics in the dying kettle or not at the same time, if no, stopping running the whole supercritical dying system in advance. The visualization system has simple structure, is convenient to produce and install and is suitable for being widely popularized in the supercritical carbon-dioxide dying system.

The invention relates to a dyeing system and belongs to printing and dyeing textile equipment. The dyeing system is composed of a dyeing machine, a vacuumizer and a distillation recovery device, wherein the vacuumizer and the distillation recovery device are arranged at the tail end of the dyeing machine, an air guide port is arranged on a channel cover of the dyeing machine and connected to an air inlet of the vacuumizer through a pipeline, an air outlet of the vacuumizer is connected to a distillation still of the distillation recovery device through the pipeline, a liquid discharge port is arranged on an organic solvent storage of the distillation recovery device and connected to a material feed pipe arranged on the dyeing machine through the pipeline, and an organic solvent circulating pump is arranged at the liquid discharge port. The dyeing system is reasonable in design, concise in structure, capable of meeting dyeing process requirements of dye liquid in which organic solvents and a little water are mutually soluble for objects to be dyed under a vacuum state and recycling the organic solvents, suitable for to-be-dyed objects made of different textile materials, safe, reliable and stable in dyeing processes, good in dyeing effect and environment-friendly.