Color spinning yarn generally refers to the yarns containing two or more kinds of fibers of different colors, which are mixed and spun by specific processes. The yarns have specific appearance color styles.
Colored spinning is also called colored fiber spinning. Some or all of the fiber raw materials used before spinning are dyed or colored by the stock solution, and then mixed by the cotton mixer fully and evenly to spin the colored yarn with a unique color mixing effect. The yarn with the fiber dyed in advance does not need to be dyed again in the post-processing process, which not only shortens the processing process, but also reduces the pollution to the environment. The production of color spinning yarn is characterized by variety, small batch, large change and frequent modification. It has strict requirements on the workshop production management, especially the field management of batch, color separation, identification and other division areas, so as to reduce and eliminate the occurrence of quality accidents such as mixed batch, mixed color, different color flying hair and wrong special. Therefore, before the production of color spinning yarn quality requirements should be fully considered, reasonable arrangements should be made, the quality of each channel should be strictly controlled, and quality problems such as color skew, fabric holes, rungs, shadows, different color fibers, cotton knots and defects should be reduced.
There are usually four types of blending processes for colour spun yarns. The first type is the traditional mixing process, which refers to the cotton bag mixing process. One or more kinds of loose fibers of different colors are mixed through the premix and cotton clearing process, so as to ensure the full mixing of the white fiber and the colored fiber, which has a more uniform mixing effect. However, the proportion of raw material mixing is not accurate enough, and the cleaning is difficult. The second category is sliver blending, the grey with colored or contain dyeing fiber is sliver, or bobbin yarn, yarn blending, this method can accurately control the raw material mixing ratio, but the blending of stereoscopic effect is the former is a bit poor, mixed, evenly extent for processing high-grade colored spun yarn, due to the uneven color mixture is easy to produce off color. The third type is to choose different mixing styles of slivers and roving yarn or filament or bobbin yarn mixed in the roving process; The fourth type is the selection of different color mixing styles of roving or sliver with roving or filament or bobbin yarn mixing in the spinning process. Different blending methods and processes will make the color spun yarn have different structure and color style effect.
Color spinning is different from bobbin dyeing in that it does not process 100% dyed fibers, but mixes some dyed fibers in the spinning process. In general, only 10% of the light colored fibers are dyed, and about 90% of the fibers are not dyed. Compared with the traditional process, color spinning yarn is lower carbon, energy saving and environmental protection. Color spinning yarn adopts the processing mode of "dyeing first, spinning later", which changes the traditional production mode of "spinning first, dyeing later". The woven fabric does not need to be dyed and finished, which not only shortens the processing process but also reduces environmental pollution. Relatively speaking, it is an environmental protection and energy saving product. The fabric composed of color-spun yarn has a three-dimensional color mixing style, natural and implicit color, strong hazy sense, can meet the personalized, diversified and fashionable clothing consumption needs of modern consumers, has strong product competitiveness, conforms to the mainstream development trend, and has a huge market demand.
