19results about "Solvent-treatment" patented technology

The utility model relates to the technical field of linen fiber processing, in particular to supercritical carbon dioxide treatment equipment for uvioresistant linen, which is characterized in that a sealing cover assembly is opened, linen fibers of a hanging assembly are taken down, and the linen fibers rise along with the sealing cover assembly, so that the linen fibers are prevented from being manually taken from the inside of a pressure container; comprising a supporting frame, a gas storage tank, a pressure container and a controller, the gas storage tank and the pressure container are arranged at the bottom end of the interior of the supporting frame, the controller is installed at the front end of the pressure container, the sealing cover assembly is arranged at the top end of the supporting frame, and the sealing cover assembly is used for sealing the top end of the pressure container; a hanging assembly is arranged at the bottom end of the sealing cover assembly and used for hanging linen fibers, and a double-pump assembly is arranged at the bottom end in the supporting frame and used for transferring carbon dioxide between the gas storage tank and the pressure container.

A textile recycling method receives textile-waste-to-be-recycled, sorts the waste to isolate cellulose-containing articles from non-cellulose-containing articles, and re-sizes at least some of the cellulose-containing articles to create feedstock. The feedstock is processed in a cellulose solvent reactor, which has at least one ionic liquid. The ionic liquid dissolves intermolecular cellulose bonds of the feedstock to create a spinning dope. Cellulose fibers dissolved in the cellulose-bearing spinning dope solution are extruded in a cellulose coagulation bath reservoir to reconstitute at least some of the cellulose fibers, and the reconstituted fibers are wet-spun to form a continuous cellulose thread that is commercially indistinguishable from virgin fiber thread. Synthetic fiber material is vacuum-extracted or mechanically extracted from the cellulose-bearing solution and recycled into a continuous synthetic thread. Original color of textile-waste-to-be-recycled can be retained or removed, and new color can be added.

To perform decolorizing treatment efficiently.SOLUTION: A decolorizing device 1 comprises a processing tank 23 of a decolorizing part 2 for containing a decolorizing liquid Q, a processing tank 43 of a rinsing part 4 for containing a rinsing liquid, and a conveying part 10 for conveying a workpiece W including fibers dyed or colored with a disperse dye, wherein the decolorizing device 1 decolorizes the workpiece W by continuously conveying the workpiece W to the processing tank 23 and the processing tank 43 in sequence by means of the conveying part 10.SELECTED DRAWING: Figure 1

A non-woven fabric entangling and functional finishing method based on step-by-step carbon dioxide fluid comprises the following steps: inputting a dry fiber web into a pretreatment cabin, injecting gaseous carbon dioxide into the pretreatment cabin to convert the gaseous carbon dioxide into supercritical carbon dioxide, dipping the fiber web into the supercritical carbon dioxide, injecting functional liquid, dipping the fiber web to obtain a finished fiber web, and drying the finished fiber web to obtain the non-woven fabric entangling and functional finishing method based on the step-by-step carbon dioxide fluid. Then separating the finished fiber web from supercritical carbon dioxide under an anti-precipitation pressure, jetting a fluid formed by subcritical carbon dioxide to the finished fiber web, enabling the fluid jet to penetrate through or penetrate into the fiber web to entangle raw material fibers in the fiber web until an entangled fiber web is obtained, and then performing pressure relief on an environment in which the entangled fiber web is located to obtain the finished fiber web. And vaporizing the carbon dioxide fluid to generate gaseous carbon dioxide. By means of the design, functional finishing and entanglement reinforcing can be coordinated, the strong entanglement reinforcing and functional finishing effects are achieved, water consumption and energy consumption are reduced, and adjustability is high.

To suitably decolorize a decolorization target without depending on a shape or a size of the decolorization target.SOLUTION: In a decolorization method for removing pigments of a dye from a decolorization target including fibers dyed or colored with the dye, the pigments are retained gaps in molecular chains of the fibers, respectively. The method includes a step of washing the decolorization target with a first decolorizing solution at a decolorization temperature equal to or higher than a fiber-opening temperature that loosens the molecular chains to an extent that the pigments move out from the gaps of the molecular chains of the fibers included in the decolorization target.SELECTED DRAWING: Figure 1

The present invention efficiently performs decolorization treatment.　A decolorizing device 1 comprises: a treatment tank 23 of a decolorization part 2 that stores a decolorizing liquid Q; a treatment tank 43 of a rinsing part 4 that stores the decolorization liquid; and a conveyance part 10 that conveys a workpiece W containing fibers dyed or colored by a disperse dye. The decolorizing device 1 decolorizes the workpiece W by continuously conveying the workpiece W to the treatment tank 23 and the treatment tank 43 by the conveyance part 10.

A continuous fabric treatment apparatus includes a steaming section for steaming a section of a fabric. A steam container, a steam suction means and at least one motorized conveyor belt of a fabric section A in a forward direction X above the steam container are arranged in the steaming channel, and steam generated by the steam generation means is introduced into the steam container. Unlike similar known systems, the system of the present disclosure includes at least two different and separate conveyor belts configured to move at different speeds, and an equal number of motorized rollers, each motorized roller mounted upstream of a respective conveyor belt and configured to place a fabric on the conveyor belt, the fabric advances in a flat or overlapping configuration that differs from the configuration exhibited by the fabric itself on other conveyor belts. Related fabric processing methods implemented with the systems of the present disclosure are also disclosed in which two conveyor belts travel at different speeds.

The present invention decolorizes an object to be decolorized without imposing a burden on the user.　A solvent application unit 30 of a decolorizing device 100 applies, to an object 200 to be decolorized including fibers colorized by a dye, a solvent 400 capable of dissociating the dye from the fibers. A hot press unit 60 applies pressure while applying heat to the object 200 to be decolorized to which the solvent 400 has been applied, and to an absorbing body 300 that is overlaid on the object 200 to be decolorized to absorb, from the object 200 to be decolorized, the solvent 400 containing the dye. Object transport units 40AA, 40AB transport the object 200 to be decolorized to which the solvent 400 has not been applied to a solvent application position, and transport the object 200 to be decolorized to which the solvent 400 has been applied to a hot press position. An absorbing body transport unit 50 transports the absorbing body 300 to the hot press position in coordination with the transport of the object 200 to be decolorized.

To provide a polyamide fiber decolorization method employing a solvent that is relatively inexpensive, readily obtainable in large amounts, and applicable for industrial use, enabling reduction of nitrogen atom content in waste liquid from the decolorization treatment and contributing to reduction of environmental load.SOLUTION: A method for decolorizing polyamide fiber, the method comprising a step of bringing a colored polyamide fiber into contact with a metal chloride alcohol solution containing a metal chloride and an alcohol.SELECTED DRAWING: None

The invention relates to the technical field of textile, in particular to a high-elasticity polyester-imitated cotton blended woven sportswear fabric and a preparation method thereof, and aims to solve the bottleneck that when the conventional sportswear fabric integrates high elasticity, imitated cotton comfort and intelligent response functions, materials are incompatible, process conflicts exist and the performance is difficult to balance. The fabric is woven by skin-core blended yarns formed by various plasma grafting modified functional fibers, through the innovative application of supercritical CO2 fluid treatment and microwave catalytic fixation processes, damage to fiber materials and functional molecules caused by traditional high-temperature and high-pressure conditions is avoided, and meanwhile firm combination between a functional layer and a fiber base material is ensured. By systematically designing fiber components, a fabric structure and a functional finishing process, the problems of insufficient multifunctional integration, mutual performance restriction, insufficient mechanical properties and the like in the prior art are solved, and a brand new solution is provided for the woven sportswear fabric for high-strength sports and daily leisure scenes.

To provide a fiber product with a sizing agent that offers superior fiber convergence.SOLUTION: The present invention provides a fiber product with a sizing agent, where the sizing agent includes (A) at least one cellulose ether selected from the group consisting of alkyl cellulose, hydroxy alkyl cellulose, and hydroxyalkyl alkyl cellulose.SELECTED DRAWING: None

To decolor an object to be decolored without applying a load on a user.SOLUTION: A solvent applying part 30 of a decoloring device 100 applies a solvent 400 capable of eliminating pigment from a fiber onto an object to be decolored 200 including the fiber colored with the pigment. A heat pressing part 60 adds pressure while applying heat to the object to be decolored 200 to which the solvent 400 is applied, and an absorber 300, which is overlapped on the object to be decolored 200 and absorbs the solvent 400 including the pigment from the object to be decolored 200. An object transporting parts 40AA, 40AB transport the object to be decolored 200 to which the solvent 400 is not applied to a solvent applying position and transport the object to be decolored 200 to which the solvent 400 is applied to a heat pressing position. An absorber transporting part 50 transports the absorber 300 to the heat pressing position along with transportation of the object to be decolored 200.SELECTED DRAWING: Figure 2

The present application relates to the technical field of textiles, in particular to a high-elasticity polyester-cotton blended woven sports fabric and a preparation method thereof, aiming to solve the bottleneck of material incompatibility, process conflict and performance difficulty in balancing when integrating high elasticity, cotton-like comfort and intelligent response functions in the existing sports fabric. The fabric is woven from a variety of plasma-grafted functional fibers, and through the innovative application of supercritical CO2 fluid treatment and microwave catalytic fixation process, the damage of traditional high temperature and high pressure conditions to fiber materials and functional molecules is avoided, and at the same time, the firm combination between the functional layer and the fiber substrate is ensured. Through systematic design of fiber components, fabric structure and functional finishing process, the problems of insufficient multifunctional integration, mutual performance restriction and insufficient mechanical properties in the prior art are solved, and a new solution is provided for high-strength sports and daily leisure scenarios.

To provide a high-efficiency method for extracting a coloring component from a colored polyester fiber, the method being capable of suppressing re-attachment of the coloring component to the fiber due to retention of the extract solution, and being capable of processing in a short time even when the colored polyester fiber is packed such that a load of 10 kg / m2 or more is applied to some portion of a bottom surface of a polyester-fiber-packed section in an extraction apparatus.SOLUTION: A method for extracting a coloring component from a colored polyester fiber comprises passing a heated liquid and a heated vapor of a glycol or monoalkyl ether alcohol through the colored polyester fiber to extract the coloring component, where the passage of the heated liquid and the passage of the heated vapor are performed in the same direction and in the same flow sense.SELECTED DRAWING: None

An object of the present invention is to realize an environment-friendly manufacturing process for textile products that solves the problem of wastewater by using a solvent instead of conventionally used water in a sizing process and / or desizing process of textile products. According to an aspect of the present invention, there is provided a method for applying a sizing agent to a textile product, the method including: a step of sizing the textile product by bringing the textile product into contact with a fluid containing the sizing agent and supercritical carbon dioxide.

The invention relates to the technical field of non-woven fabric production equipment, and discloses a non-woven fabric processing system which comprises fiber surface pretreatment, fiber pretreatment, fiber carding, fiber lapping, dynamic structure forming, reinforcing, post-treatment, automatic control and environment-friendly treatment. The fiber carding comprises dynamic self-adaptive card clothing carding and ultrasonic-assisted carding, and the fiber lapping comprises multi-shaft collaborative lapping and laser-induced lapping. According to the non-woven fabric processing system, the fiber carding and lapping technology is optimized, carding card clothing is automatically adjusted according to the real-time condition of fibers, ultrasonic assistance is matched, fiber damage is reduced, the carding uniformity and efficiency are improved, the lapping path is flexibly adjusted through multi-axis cooperation, the fibers are locally heated and fused through laser induction, the lapping stability is improved, and the non-woven fabric processing efficiency is improved. The strength and the uniformity of the non-woven fabric are improved, so that the effects of ensuring the uniform distribution of fibers and the uniformity and the thin thickness of lapping can be achieved.

A continuous fabric treatment plant includes a steaming section for carrying out a steaming treatment on a segment of fabric. Within the steaming tunnel there are the steaming tank into which the steam is introduced, generated by steam generation means, the steam suction means as well as at least one motorized conveyor belt of the fabric segment A in a forward direction X above this tank. Unlike similar known systems, the system of the present disclosure includes at least two distinct and separate conveyor belts configured to be moved at different speeds, as well as an equal number of motorized rollers each installed upstream of the respective conveyor belt and configured to place on a conveyor belt the fabric which advances in a flat or overlapping configuration different from that assumed by the fabric itself on the other conveyor belt. Also disclosed is a related fabric processing method implemented with the system of the present disclosure, in which the two conveyor belts travel at different speeds.

[Problem] To make it possible to appropriately decolorize a decoloration target object without imposing a burden on a user. [Solution] This decoloring method is for decoloring a dye of a staining material from a decoloration target object including fibers that have been colored or stained by the staining material. The dye is held in gaps of molecular chains of the fibers. The method comprises a decoloring step for washing the decoloration target object by using a first decoloring liquid at a decoloring temperature that is equal to or higher than a fiber-opening temperature at which the molecular chains are loosened to such a degree that the dye escapes from the gaps of the molecular chains of the fibers included in the decoloration target object.

The invention relates to a method, a product and a system for cleaning and recycling waste textiles by using carbon dioxide fluid, which comprises the following steps of: putting an obtained waste fiber net into a pretreatment tank, injecting supercritical carbon dioxide into the pretreatment tank to statically soak the waste fiber net to obtain a soaked fiber net, taking the soaked fiber net out of the pretreatment tank, and drying the soaked fiber net in a drying oven to obtain a finished product. The method comprises the following steps of: soaking a fiber web in the fiber web, feeding the fiber web into an entangling working chamber, ejecting a fluid jet flow formed by supercritical carbon dioxide or subcritical carbon dioxide from top to bottom to the soaked fiber web, penetrating or penetrating the fluid jet flow into the fiber web to entangle fibers in the fiber web, and washing pollutants on the fibers until the fiber web is conveyed out of the entangling working chamber; therefore, the reinforced fiber web is obtained. According to the design, mutual cooperation of cleaning and entanglement can be achieved, the recycling effect is good, water consumption and energy consumption are low, and environment friendliness is achieved.