17results about "Textile solvent-dyeing" patented technology

The invention relates to the technical field of textile fabrics, in particular to a comfortable wool blended fabric and a preparation method thereof. The comfortable wool blended fabric comprises the following fiber components in percentage by mass: 25%-45% of merino wool, 20%-35% of lyocell fibers, 10%-25% of bio-based polyamide 56 fibers, 5%-15% of recycled polyester fibers and 3%-8% of spandex. Due to the combination, the softness, the air permeability, the elasticity and the close-fitting comfort of the final fabric are well balanced, and the scratchiness of the pure wool fabric is remarkably reduced. Besides, a large amount of bio-based and regenerated fibers are used in the formula, so that the dependence on non-renewable petroleum resources is reduced, and the concept of low carbon and environmental protection is embodied. Finally, through double innovation of component design and process design, the wool blended fabric which is extremely comfortable, excellent in functionality and environmentally friendly is successfully prepared.

The supercritical CO2 dyeing recovery and separation system comprises a separation kettle, a temperature drop circulation assembly and a central controller, the separation kettle is provided with a movable cylinder and a positioning cylinder which can be driven by a lifting mechanism to be close to or away from each other, and a filter membrane capable of separating a cylinder channel is arranged between the movable cylinder and the positioning cylinder; the filtering membrane is wound and unwound by a winding and unwinding device so as to replace a filtering section arranged in a barrel channel, the barrel channel is used for feeding and discharging through a feeding connecting pipe and a discharging connecting pipe which extend out of the shell respectively, and the temperature in the shell is regulated and controlled by a temperature reduction circulating assembly; the central controller is electrically connected with the separation kettle and the temperature drop circulation assembly, automatic section changing of the filtering membrane can be achieved through the winding and unwinding device, and only low-frequency membrane cylinder changing is needed manually, so that maintenance cost and production interruption can be reduced on the basis that CO2 recovery purity is guaranteed.

The present application relates to the field of dyeing equipment, disclose a kind of supercritical carbon dioxide anhydrous dyeing horn steady flow device and application, including being located between the air inlet pipe and yarn cylinder horn steady flow main body;The horn steady flow main body includes horn front section, horn main section and horn end section, the air inlet pipe is connected with horn front section, yarn cylinder is connected with horn end section;The horn main section is the expanding diameter structure gradually increasing from input end to output end, and the inner wall of horn main section is evenly distributed with several pieces of axial guide rib along the circumferential direction, and axial guide rib is streamline straight rib.The present application has the advantages that: it can effectively stabilize the internal flow field of supercritical carbon dioxide dyeing equipment, improve dyeing uniformity, improve process stability and reduce energy consumption.

The invention discloses a wool fabric waterless dyeing device and a dyeing method thereof in the technical field of fabric processing, the wool fabric waterless dyeing device comprises a reaction kettle main body, a support is arranged on the reaction kettle main body, a hoisting piece, a plurality of outer dyeing columns and a plurality of inner dyeing columns are arranged on the support, and the outer dyeing columns and the inner dyeing columns are arranged on the hoisting piece. The inner dyeing columns are located on the inner sides of the outer dyeing columns, and second through holes used for being communicated with the inner dyeing columns and first through holes used for being communicated with the outer dyeing columns are formed in the support; a fixing piece for fixing the outer dyeing column is arranged on the bracket; the outer dyeing column can move in the axial direction (such as downward) by relieving the fixed limitation on the outer dyeing column, so that the operation space for the inner dyeing column is directly reserved, an operator can directly and conveniently get close to the inner dyeing column without shuttling back and forth in a narrow fixed column gap with great effort or detaching the outer dyeing column in advance, and the operation efficiency is greatly improved. The wool fabric is loaded or unloaded, so that the manual working efficiency is improved.

The present application relates to the field of ecological and environmentally friendly waterless dyeing, and particularly relates to a horizontal supercritical waterless dyeing color sample system and application thereof. The system comprises a carbon dioxide gas supply assembly, a dyeing circulation assembly and a plurality of dyeing kettles. The carbon dioxide gas supply assembly is connected to the dyeing kettles to provide carbon dioxide gas for the dyeing kettles. The dyeing circulation assembly is in communication with the dyeing kettles to form a dyeing circulation loop. The system further comprises a dyeing support which is detachably connected to the dyeing kettles. The dyeing support comprises dyeing pipelines and dye storage pipelines which are in communication with each other. The dyeing pipelines are used to support the winding of the textile to be dyed. The dye storage pipelines are used to store the dye. The end of the dye storage pipeline which is away from the dyeing pipeline can be inserted into the dyeing circulation assembly to form a part of the dyeing circulation assembly. The present application can determine the dye formula and process parameters required by the production equipment, thereby obtaining the color required by mass production.

The application relates to the technical field of textile printing and dyeing, and discloses a waterless printing and dyeing process intelligent control method and system.The method comprises the following steps: collecting dye dispersion and fabric fiber density data in a waterless medium, and generating an initial concentration distribution map; inputting a convolutional neural network to identify concentration instability regions and local deviation values; if the deviation exceeds a preset threshold, iteratively optimizing dye injection parameters to obtain an optimized concentration distribution map; segmenting the regions and extracting dye penetration path vectors of high fiber density regions; determining regional adsorption adjustment coefficients through a support vector machine; updating the parameters to obtain a dynamic concentration regulation sequence; iteratively optimizing the final uniform coloring distribution through coloring simulation; and extracting quality indicators to optimize process parameters and determine a production compatibility scheme.The application solves the problem of uneven dye dispersion through multi-dimensional data fusion and intelligent algorithm regulation, and improves coloring uniformity, process stability and production compatibility.

The invention provides a dye dissolving system, a dyeing system and a dyeing method, and relates to the technical field of fabric dyeing. The dyeing system comprises a dyeing kettle and a dye dissolving system, the dye dissolving system comprises a dye kettle, a partition plate, a dye layer and a separator are sequentially arranged in the dye kettle, the dye kettle is further provided with a medium inlet and a medium outlet, the partition plate, the dye layer and the separator are arranged between the medium inlet and the medium outlet, and the medium inlet is close to the partition plate. The medium outlet is arranged close to the separator; the external circulation pipeline is connected to the medium inlet and the medium outlet of the dye kettle, the external circulation pipeline comprises a flow direction keeping mechanism, and the flow direction keeping mechanism is configured to respond to the change of the flow direction of the medium in the external circulation pipeline, so that the medium entering the dye kettle always enters from the medium inlet and flows out from the medium outlet. The dyeing method comprises the step of alternately carrying out positive circulation dyeing and reverse circulation dyeing. According to the invention, the dye dissolution consistency in the positive and negative circulation process can be realized, and the dyeing uniformity is improved.

The invention discloses a differential modification and water-saving dyeing and finishing method for fiber materials of imitated composite fabrics, and relates to the technical field of dyeing and finishing and washing treatment of textile materials, and the method comprises the following steps: obtaining fiber component information and target style information of to-be-treated imitated composite fabrics; performing gas-phase dyeing on the to-be-treated imitated composite fabric; the dyed imitation composite fabric is treated through mechanical friction and steam activation; and performing low liquor ratio cleaning on the fabric subjected to the vintage treatment, and performing setting treatment. According to the method, the fiber composition of the imitated composite fabric is obtained through identification, the process parameters are subjected to differentiation and self-adaptive adjustment so as to be matched with the physicochemical characteristics of different fiber components, the authenticity and consistency of the vintage effect of the composite jean fabric are ensured from the two dimensions of dyeing selectivity and vintage selectivity, and the quality of the composite jean fabric is improved. The problems of splitting, high water consumption and unnatural and uncontrollable distressing effect in the traditional process are solved.

The invention relates to the technical field of dyeing, in particular to a dyeing system and a using method, and the dyeing system comprises a dyeing kettle, a dye box and a material supporting piece. The dye box is arranged in the dyeing kettle and comprises a box body, a dye supporting pipe and a dye layer, an inflow port of the dye supporting pipe is communicated with an input port of the dyeing kettle, the dye supporting pipe is partially inserted into the box body and provided with a ventilation section, and a first blocking end of the dye supporting pipe and the ventilation section are both located in the box body. A plurality of ventilation holes are uniformly formed in the side wall of the ventilation section, the dye layer is wound on the ventilation section, the dye layer comprises a porous loading layer and dye uniformly arranged on the porous loading layer, the box body comprises an outflow opening, and the outflow opening is communicated with a gathering space between the box body and the ventilation section. The material supporting piece is arranged in the dyeing kettle and used for supporting materials. The dyeing medium sequentially flows through the input port, the inflow port, the vent hole, the dye layer, the gathering space, the outflow port, the material and the output port.

To recover a dye from textile waste containing at least 50 mass% of polyester fibers by a safe, easy and environmentally clean means.SOLUTION: A textile waste batch is extracted with a circulating solvent in an extraction chamber, the solution comprising the solvent and the extracted material is used as a dye extraction solvent from another textile waste batch, and the extraction process is repeated until the amount of extracted material in the solution reaches a concentration that impairs further dye extraction.SELECTED DRAWING: Figure 1

The present application relates to cashmere blended fiber fabric technical field, especially to a kind of preparation method of cashmere blended fiber fabric, the cashmere blended fiber fabric is composed of the following weight parts of raw materials: cashmere fiber 50-60 parts, polybutylene adipate elastomeric fiber 3-5 parts, bacterial cellulose nanofiber 5-8 parts, PNIPAM graft modification polyester 17-22 parts, polydopamine coated basalt staple fiber 6-10 parts, bamboo pulp fiber 8-12 parts, crosslinking agent 0.8-1.5 parts.In the process of making cashmere blended fiber fabric, the breaking strength of the fabric is improved while maintaining the core touch of cashmere, forming a "temperature trigger-humidity synergy" intelligent humidity control system, improving the functional regulation of cashmere fabric, in the process, the performance of "elasticity-softness-durability" is unified, and the in-situ fixation of antibacterial agent in the fiber is also realized, solving the problem of easy falling off of traditional after-treatment functional agent, and zero wastewater discharge, with good environmental protection significance.

The invention belongs to the technical field of cleaning, and particularly relates to a cleaning method for removing cobalt pollution on the surface of fabric, which comprises the following steps: 1) preparing an additive solution which comprises a surfactant, citric acid, EDTA and water; the molar ratio of the water to the surfactant is (15-20): 1, and the molar ratio of the citric acid to the EDTA is (5-20): 1, 2) adding the cobalt-polluted fabric and an additive solution into a supercritical carbon dioxide reaction kettle; and (3) carbon dioxide is injected, static extraction cleaning is conducted on the fabric, cobalt pollution on the surface of the fabric is removed, and during static extraction cleaning, the pressure intensity is 15-20 MPa, and the temperature is 60-70 DEG C. According to the method, the removal effect can be improved.

The utility model provides a supercritical carbon dioxide waterless dyeing circulating system, system and equipment, and relates to the technical field of dyeing. The supercritical carbon dioxide waterless dyeing equipment comprises a supercritical carbon dioxide waterless dyeing system, the supercritical carbon dioxide waterless dyeing system comprises a supercritical carbon dioxide waterless dyeing circulating system, the circulating system comprises a dyeing kettle, a circulating pump and a pipeline, the circulating pump is a vane pump, and vanes of the vane pump are arranged in the radial direction of a rotor. The pipelines comprise a first pipeline and a second pipeline, the dyeing kettle is provided with a first fluid interface and a second fluid interface, the circulating pump comprises a third fluid interface and a fourth fluid interface, the first pipeline is connected with the first fluid interface of the dyeing kettle and the third fluid interface of the circulating pump, and the second pipeline is connected with the fourth fluid interface of the circulating pump. The second pipeline is connected with the second fluid interface of the dyeing kettle and the fourth fluid interface of the circulating pump. The vane pump is adopted as a circulating pump, and a circulating system does not need to be provided with a complex pipeline.

This invention provides an intelligent supercritical CO2 dyeing waste gas recovery device, comprising: a dyeing tail gas nanofilter; a first check valve connected to the outlet of the dyeing tail gas nanofilter; and a recovery carbon dioxide pump, the inlet of which is connected to the outlet of the first check valve via a pipeline for pressurizing and transporting the filtered CO2 gas. The intelligent supercritical CO2 dyeing waste gas recovery device provided by this invention utilizes the coordinated structure of the dyeing tail gas nanofilter, the first check valve, the recovery carbon dioxide pump, the condenser, the storage tank, and the low-pressure carbon dioxide pump. During operation, the recovery carbon dioxide pump can forcibly extract the low-pressure CO2 tail gas after pressure equalization, achieving residual gas recovery without additional pressurization equipment, thereby avoiding CO2 waste.

This invention discloses a supercritical fluid dyeing method. A supercritical fluid is introduced into a dye storage tank containing dye. After the temperature and pressure in the dye storage tank reach set values, the supercritical fluid containing dissolved dye is introduced into a dyeing vessel containing the material to be dyed. The supercritical fluid containing dissolved dye is circulated between the dyeing vessel and the dye storage tank. After a preset period, the dyeing of the material is completed. The supercritical fluid is a mixture of carbon dioxide and nitrogen. This method can improve the problems of poor fiber color brightness and low dyeing depth.

The present application relates to the field of anhydrous dyeing, discloses a carbon dioxide supercritical dyeing control method and a dyeing device, the control method comprises the following steps: in the process of using a circulating pump to drive supercritical fluid to circulate dyeing, a switching mechanism is used to control the supercritical fluid output by a dyeing kettle to alternately enter a dye kettle and a pipeline between the dye kettle and the dyeing kettle; when the switching mechanism controls the supercritical fluid to enter the dye kettle, the supercritical fluid dissolves the dye in the dye kettle; when the switching mechanism controls the supercritical fluid to directly enter the pipeline between the dye kettle and the dyeing kettle, the supercritical fluid dissolves the dye carried into the pipeline between the dye kettle and the dyeing kettle. The present application has the following advantages: it can ensure that all the dye is dissolved and dyed within the process time, the dyeing formula will not deviate, and color spots or color stains caused by long-term accumulation of dye on the fabric surface can be avoided, thereby ensuring the dyeing quality.

This invention relates to a yarn package distributor and its application in supercritical fluid dyeing and degreasing. The yarn package distributor is divided into an upper, middle, and lower perforated zone. The middle perforated zone has evenly distributed central ventilation holes. Both the upper and lower perforated zones have a first and a second row of ventilation holes arranged circumferentially at intervals. The first row of ventilation holes in the upper zone corresponds axially to the second row in the lower zone, and vice versa. During supercritical fluid processing of yarn packages, the yarn package distributor exhibits low static pressure loss, low dynamic pressure loss, and low total pressure loss. The distributor's inner diameter is increased, and the tube wall is thinner, facilitating airflow movement from the outlet. Furthermore, the different outlet diameters cause the airflow within the yarn package distributor to rotate, effectively converting static pressure into dynamic pressure. This avoids irregular airflow movement within the distributor, contributing to uniform and efficient processing.