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Coral velvet manufacturing

Product attributes

  • Classification:Coral fleece
  • Product number:1563517578
  • Number of visits:0
  • Date of publication:2019-09-03
  • Product overview
  • Characteristics
  • Technical parameter

Among the dyed coral fleece fabrics, most of the dyed products of Polyester 150D/288F coral fleece are mainly due to the fineness of the silk and the small flexural modulus, so the fabric has outstanding softness. Although there are so many advantages, everything has two sides and shortcomings, and its permeability is not very good. Take the blanket, the double-sided coral fleece is hairy because of its front and back, and the effect of the fluff is basically the same. The weight of the square square is generally 280g, 300g, 320g, which is relatively thick, so the fiber The density between the two is relatively small, and the air permeability is poorer than the single-sided felt. In view of this type of problem, there is no way to make it effective.


However, the entire process of dyeing plays a decisive role in its characteristics. Of particular importance are: dyeing and finishing. In dyeing, the choice of dyes and their combination should be selected, the choice of printing and dyeing auxiliaries (pH should be controlled at 4.5~5.5) and heating rate; in finishing, soft, napped, combed, sheared, shaken , stereotypes, each process must be strictly standardized operation, in order to prevent the quality of the finished product.


The following is the entire process of dyeing all-poly coral fleece fabrics. Detailed analysis of each process is carried out to study the attention points, effects and solutions of each process, so that the whole process can be better optimized!


General process


White fabric - unwinding - seam head - predetermined type - edging - dyeing - softening - dehydration - pulling edge - drying - pulling hair - combing hair - shearing - shaking grain - - Styling - finished product roll


Coral fleece has a soft bottom plate and a hard bottom plate. The soft bottom plate generally adopts 100D/48F semi-dull polyester yarn as the bottom wire; the hard bottom plate adopts 100D/96F low elastic wire as the bottom wire. The fabrics produced by the two types of filaments have different elastic forces.


The granulated coral velvet fabric is woven by a warp knitting machine and has a two-layer structure, which is split into a single-sided coral velvet blank. Due to the influence of the profiler, there are differences in the height of the pile between the A side and the B side of the grey fabric, and there are also woven woven fabrics such as sticky hair, weaving vertical strips, parking bars and broken wires, which affect the quality of the finished product.


Therefore, the preliminary inspection of the grey fabric should be carried out before the predetermined shape, and the predetermined shape should be pre-formed before the alkali reduction of the blank fabric, so that the coral filaments of the coral surface are arranged neatly, vertically, and loosely, and the structure of the filament is tight and stable. After the unfinished grey fabric is dyed and finished, the coralline formed by the coral surface is curved, disordered, curled, and flattened, and the style of coral fleece is lost. The predetermined shape can also effectively prevent the occurrence of alkali reduction and the curling caused by the action of the dyeing nozzle.


Alkali reduction: After the predetermined shape, the alkali reduction is generally determined according to the condition of the coral coral of the grey cloth. When there are more microfiber network points in the coral filaments, the coral surface is clear, and the alkali reduction or alkali reduction can be performed to ensure the style of the coral fleece. On the other hand, when the microfiber network as the coral filament has fewer points, and the coral silk has poor cohesion, the sharpness is not obvious, or the weaving profile is generated to produce sticky hair, the alkali reduction is performed.


Dyeing: dyeing with a high temperature and high pressure overflow dyeing machine. The product selected from the upper walking cylinder is more stable than the lower walking cylinder, has a good feel, is easy to brush, and has no ant nest on the coral surface. The soft finishing of soft-finished coral fleece is soft and gentle, and can be carried out in different ways according to the requirements of the customer. The rolling yield is high, the production is convenient, and the cloth head is reduced, but the hand feel is worse than the dipping; the dipping is good and easy to brush, but the process time is long, the output is low, and the bath ratio needs to be strictly controlled, especially to prevent The production of silicone oil spots. The bristles can be raised on the 24-roller and 26-roller pilling machines. The tension should be adjusted according to the feel of the grey cloth, and the gear size should be changed, generally from light to heavy, to ensure that the brushed fabric does not hurt the bottom silk and the suede to achieve thick and dense.


Comb and shake: According to the style of the sample, adjust the number of combs and the height of the shear and the time of the shake.


Finished finishing of the finished product: mainly to control the width and weight of the product, so that the product achieves a certain stability, which is conducive to cutting and sewing.


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