The present invention relates to a process for producing a colored nonwoven fabric that contains a colorant and nanofibers, which includes the step of injecting a polymer compound A by an electrospinning method to deposit the nanofibers on a surface of a collector, in which the surface of the collector on which the nanofibers are deposited is at least partially formed into an uneven shape.

Counter-flow washing. The present invention relates to a process for washing filaments.

A first irrigation assembly includes a base plate having an upwardly curved sidewall and a planar annular peripheral flange. Spray outlets on the upwardly curved sidewall provide liquid spray to exterior portions of a wetsuit at a plurality of spray angles. Spray outlets on the annular peripheral flange provide liquid spray to exterior portions of the wetsuit at spray angles different from the spray angles of the spray outlets on the upwardly curved sidewall. A second irrigation assembly includes first and second curved pipes and an upper piping arrangement having major external surfaces. First and second flow junctions provide fluid flow connection between the curved pipes and the upper piping arrangement. Spray outlets arranged along the major external surfaces of the curved pipes and the upper piping arrangement provide liquid spray to upper and lower interior rear and front portions of the wetsuit.

A blower for an airflow dyeing machine is provided. Each four nozzles of the airflow dyeing machine shares a blower, the blower being disposed at a central position of the four nozzles; wherein the blower comprises: a motor, a blowing machine, a primary air duct, a secondary air duct, an air inlet and an air outlet, the motor driving the blowing machine to rotate, the blowing machine comprising a blowing machine housing and impellers, the impellers being disposed inside the blowing machine housing, two air outlets of the blowing machine being oppositely arranged and are disposed on two sides of the blowing machine housing which respectively supply air to the two nozzles at the two sides, the air inlet of the blowing machine being on a side opposing the motor, the two air outlets of the blowing machine being respectively coupled to one ends of the two primary air ducts.

A system (10) for in-line treatment of thread (20) for use with a thread consuming device (15) is provided. The system comprises a treatment unit (100) comprising at least one discharge device (150) being configured to dispense one or more coating substances onto the at least one thread (20) when activated; and a drive unit (32) being configured to move said at least one discharge device (150) between an idle position (42) and an operational position (41) being arranged along an axis of movement (A).

A waterless dyeing device for cone yarn, a waterless dyeing method and a produce are provided; wherein the device comprising: a dye autoclave (1); a dyeing autoclave (2); a recycle autoclave (6); a dyeing circulation system in which the dye autoclave (1), the dyeing autoclave (2) and the recycle autoclave (6) are in fluid communication with; wherein further comprises: a cone yarn inlet formed on the top of the dyeing autoclave (2), which is provided with a sealing cap (7); a cone yarn center shaft (10) vertically disposed at the center inside the dyeing autoclave, which is a perforated outlet tube with fluid discharge holes opened on the side wall; an intake pipe (13) disposed on the bottom of the dying autoclave (2) which is in communication with the cone yarn center shaft (10); a dyeing autoclave outlet (9) disposed on the dying autoclave (2); and a CO2 container (4), a pressure pump, a circulation pump (3) and conduits which are included in the dyeing circulation system. The dyes are disposed in the dye autoclave (1) and the cone yarns are disposed inside the dyeing autoclave (2), CO2 is introduced into the dye autoclave (1) to dissolve the dyes gradually, and the CO2 carrying the dyes to the dyeing autoclave (2) to dye and diffuse. The present invention has the advantages of being high in production efficiency, even in dyeing effect and high in safety, and is suitable for waterless dyeing of polyester cone yarns.

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.

A production apparatus and production method for colored spun yarn with fiber dyeing and mixing in a spinning process is provided. The production apparatus is a ring spinning machine. The ring spinning machine includes a front table board and a rear table board with a same structure. Each of the front table board and the rear table board is formed by a plurality of spindles with a same structure. Each spindle includes a drafting system. A roving feeding bell mouth is connected at the rear of the drafting system, and a splitting plate is arranged at the front of the drafting system. A dyeing system is arranged at the front of the splitting plate. A color fixing system is added at the front of the dyeing system. A bunching bell mouth device and a delivery roller pair are arranged at the front of the color fixing system.

A weaving machine includes a yarn winding mechanism for winding and unwinding undyed yarns, and a yarn coloring mechanism including a hot roller, inner and outer layer color paper tape winding devices for winding and unwinding inner and outer layer color paper tapes, respectively, and a packing paper winding device for winding and unwinding a packing paper. The inner and outer layer color paper tapes are configured to clamp therebetween the undyed yarns. A squeezing device includes a closed loop belt movably pressing the packing paper against the hot roller such that inks of the inner and outer layer color paper tapes are transferred to the undyed yarns. A back-end system is configured to weave or wind the dyed yarns.

The invention discloses a waterless fiber dyeing machine suitable for mixed fluid medium, including a dyeing tank, a carbon dioxide pressurizing system and a polar medium pressurizing system, a fiber loading system, a circulating dyeing system, a carbon dioxide recycling system, a polar medium separating and recycling system and an automatic unloading system. Since there are pressurizing systems and separating and recycling systems for carbon dioxide medium and polar medium, dyeing with the mixed fluid medium is realized in the waterless dyeing tank and the circulating dyeing system thereof; the hydrophobic carbon dioxide fluid medium is effectively modified, so that the dyeing performance and effect of the dye molecules on the hydrophilic natural fiber are improved. The fiber loading system and the unloading system can significantly improve the fiber loading efficiency, the discharging efficiency of the products.