Master batch adding system and method for preparing colored fibers

Abstract

The invention relates to a master batch adding system and a method for preparing colored fibers. Problems that an existing master batch adding system cannot be randomly switched in single spindle place, multiple spindle places and a whole line, the master batch consumption is high, and spun fibers are poor in strength and color fastness are solved mainly. The master batch adding system comprises a main feed bin, the bottom of the main feed bin is sequentially connected with a main feed screw extruder, a filter and a first static mixer through pipes, a discharging port of the first static mixer is connected with a main melt pipe through a melt pipe, the main melt pipe is connected with a plurality of single spindle place branch melt pipes through a four-way switch, the bottom of a mixing bin is connected with a small screw extruder through a pipe, and a discharging port of the small screw extruder is connected with the main melt pipe and the plurality of single spindle place branch melt pipes through a three-way valve. Through the technical scheme, the problems are solved well, and the master batch adding system can be used for production of the colored fibers.

Description

technical field [0001] The invention belongs to the technical field of colored fiber preparation, and in particular relates to a method for preparing colored fiber by adding a masterbatch into a system. Background technique [0002] The current fiber products are made of a certain proportion of polyester and nylon as raw materials through composite spinning, false twist deformation or stretching process. This fiber product can meet the requirements of high-end textile products with unique super water absorption and decontamination properties. , ultra-soft performance and super-simulation performance and other style requirements, and also have the physical properties of high elasticity, high strength, wear resistance and corrosion resistance common to synthetic fibers. Yet because the fiber in the prior art is all off-white, it must be dyed to obtain the textile products of various colors and lusters required by users after it is further processed into textile products, there...

AI Technical Summary

Problems solved by technology

Yet because the fiber in the prior art is all off-white, it must be dyed to obtain the textile products of various colors and lusters required by users after it is further processed into textile products, thereby causing the following two deficiencies: its First, as a textile product made of fiber, the fineness of the single filament after fiber opening is only about 0.08dtex. Because the fineness of the single filament is extremely fine, the color fastness and vividness of the color cannot reach some high-end deep The requirements for colored textile products and bright textile products limit the application range of the products; secondly, any textile products will produce a large amount of industrial waste gas and sewage during the post-processing dyeing process, seriously polluting the environment and endangering health

The traditional method is to introduce the raw materials of the main silo and the master batch silo into the color injection machine below for color injection, and then mix the two raw materials in proportion and then enter the screw extruder, and the screw extruder melts the two raw materials Finally, it enters the filter to filter out air bubbles and impurities, then enters the main pipeline static mixer for full mixing, and finally enters the spinning box of each spindle position for spinning to obtain the final color silk variety. This masterbatch addition method exists The technical problems are: 1. Because the masterbatch and the main material enter the main screw together for melting, the setting of the main screw temperature needs to consider factors such as the spinnability and index of the fiber, so generally the adjustable range is small, and the general main screw temperature It will be relatively high, resulting in excessive degradation of some masterbatches, thereby reducing the strength and color fastness of the fibers; 2. When adding masterbatch raw materials during the spinning process, the entire line needs to be shut down first, and then extruded by the main screw It can only be driven out after the color injection machine is connected to the front of the machine, and the energy waste caused by parking and driving; 3. During the spinning process, the masterbatch needs to be filtered through a filter, which will filter out some masterbatch components and increase the consumption of masterbatch , which increases the production cost of the enterprise; 4. The masterbatch adding system cannot be switched between single spindle position, multi-spindle position and the whole line at will

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