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.

Processes and apparatus for dyeing a textile product are provided whereby an undyed textile product is introduced into a substantially anaerobic dyeing chamber having an oxygen content of less than 1000 ppm oxygen therein, and at least two dye mixtures having a differential dye exhaustion rate of at least 10% are applied onto the textile product within the substantially anaerobic dying chamber. Thereafter the dyed textile product may be exposed to an oxygen-containing atmosphere so as to oxidize the applied dyes. At least one of the dyes may have a dye exhaustion rate of at least about 25%, or even at least about 50%. The embodiments herein are especially adapted to dyeing of textile products whereby one dye in the at least two dye mixtures is a sulfur dye and another dye in the at least two dye mixtures is a leuco indigo dye.

The present invention discloses a multifunctional dyeing and finishing kettle and a production-type supercritical CO.sub.2 fluid anhydrous dyeing and finishing apparatus with a scale over 1000 liters. The production-type supercritical CO.sub.2 fluid anhydrous dyeing and finishing apparatus mainly comprises a CO.sub.2 low-temperature storage tank, a CO.sub.2 supply storage tank, a low-temperature transfer pump, an ethylene glycol head tank, an ethylene glycol pump, a water cooling tower, a water pump, a refrigeration unit, a condenser, a heat exchanger, a heat transfer oil system, a heat transfer oil replenishment system, a precooler, a CO.sub.2 boost pump, a dye kettle, a feeder, a multifunctional dyeing and finishing kettle, a CO.sub.2 circulation pump, a cooler, a separation kettle, an adsorber and a recovery compressor, an on-line monitoring system and an automatic control system. The apparatus is capable of meeting single-color or multi-color dyeing and finishing production of a plurality of textiles.

A device for the treatment of strand-shaped textiles includes a treatment container, a transport nozzle array, and a transport path by way of which a material strand can be moved through the transport nozzle array in a transport direction. The transport nozzle array includes a transport nozzle with nozzle inlet and outlet orifices for the material strand, between which are delimited at least two nozzle gaps for a transport medium. At least one of the nozzle gaps is adjustable regarding its gap width. At least one nozzle gap can convey the material strand in the transport direction, and at least one nozzle gap can convey the material strand in a direction counter to the transport direction. The device also includes a control unit that selectively drives the material strand in the transport direction or in the direction counter to the transport direction by appropriate actuation of the nozzle gaps.

A method (10) for cleaning fibers from a contaminated article is disclosed. The method (10) can include pulping (20) a contaminated article to separate the fibers or filaments from the contaminated article in a first solution to provide dissociated pulped fibers. The method (10) can also include washing (26) the dissociated pulped fibers by forming a suspension comprising the dissociated pulped fibers from the contaminated article and a detergent, applying a magnetic field to the suspension, and mixing the suspension to wash the dissociated pulped fibers while applying the magnetic field to the suspension thereby forming washed pulped fibers. Contaminates can be removed from the suspension while washing (26) the dissociated pulped fibers. The washed pulped fibers can be rinsed and dried to provide clean fibers.

The invention discloses a proofing dyeing cup for supercritical fluid waterless dyeing and finishing, which achieves separate or simultaneous filling of the medium into multiple dyeing units, and simultaneous heating of the dyeing units for proofing processing. Efficiency of proofing processing such as high-pressure supercritical fluid waterless dyeing and thus the utilization rate of the medium boosting and filling system and separation and recycling system are significantly improved, so that the proofing requirements of commercial production of textile waterless dyeing and finishing are met. Furthermore, dye chemicals at the bottom of the cup can be stirred to facilitate dissolution, and the dye chemicals at the bottom of the cup can be swept and cleaned. Thus, defects of an existing fixed supercritical fluid dyeing proofing device or an equipment system thereof, such as low utilization efficiency, complex cleaning and incapability of meeting the proofing requirements of commercial production, are overcome.

A dyeing machine with symmetrical double spiral fabric tanks includes a barrel body with a fabric inlet, two spiral fabric tanks arranged side by side with each other in the barrel body and installed on both sides of the fabric inlet respectively, and each spiral fabric tank having a fabric guiding tube, a spiral fabric sliding plate and a receiving tank. The two fabric guiding tubes are disposed proximate to adjacent sides and facing to the front side and arranged symmetrically with respect to the left and right sides. The two spiral fabric sliding plates are coupled to the rear end of the two fabric guiding tubes and configured to be spirally from top to bottom, so that cloths can be dipped and dyed in the two spiral fabric tanks.

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.

A dispenser for treating a textile is disclosed. The dispenser includes a dispenser body defining an interior cavity for storage of a composition and an applicator assembly coupleable to the dispenser body in an assembled configuration. The applicator assembly includes an applicator body defining an outer surface with a central orifice extending therethrough and a plurality of projections extending from and arranged on at least a first portion and a second portion of the outer surface of the applicator body, the plurality of projections arranged on the first portion differing from the plurality of projections arranged on the second portion, wherein, in the assembled configuration, the dispenser body is orientable into a first orientation or a second orientation to dispense the composition and massage the textile with the plurality of projections of the first portion or second portion.

A dyeing apparatus (10) is described which is provided with a single tank (12) comprising: side walls (14); a bottom wall (16), which has a convex outer surface; a first inner partition wall (18) and a second inner partition wall (20), which delimit a dyeing compartment (26) and define respectively a first interspace (28) and a second interspace (30); and at least one mobile and/or removable upper lid (32), which closes the dyeing compartment in a watertight sealed manner. A first hydraulic circuit (34, 36; 38, 40) is designed for circulation of a first process fluid (B), whereas a second fluid circuit (42) is designed for circulation of a second process fluid (N). The first hydraulic circuit comprises first means (34, 36) for entry/exit of the first process fluid, which are designed to feed the first process fluid up to a first predefined filling level (L1) both in the dyeing compartment and in the interspaces, and second means (38, 40) for entry/exit of the first process fluid, which are designed to feed the first process fluid up to a second predefined filling level (L2) both in the dyeing compartment and in the interspaces. The second distance (D2) is greater than the first distance (D1), so that the second predefined filling level (L2) is greater than the first predefined filling level (L1).