In order to make the raw materials have better fluffiness to facilitate the opening of hair, the network nozzle aperture is smaller than ordinary filament 0.1 mm, so as to facilitate the finished product in the post-treatment to open the network; elongation 10% ~ 15%, boiling water shrinkage rate of 2.8% ~ 3.2%, curling elasticity of the high rate of return and stabilization rate, to ensure that the surface of the cloth has a large gap, fluffy and soft, silk between the non-slippage, dimensional stability, so as to facilitate the needling into the needle to improve the pilling Effect.
Adapt to such varieties of raw materials, plus the key points of the elasticity process for: deformation processing speed of 750 ~ 790 m/min; the first heating box temperature H1 to take 190 ~ 200 ℃, H2 lower than the H1 30 ~ 40 ℃; D / Y ratio as high as possible, so that the false-twist twist to increase the K-value adjusted to 0.7 ~ 0.9; stretch multiplier to meet the wool does not affect the withdrawal of the windings, elongation of the smallest.
Velvet
Standing velvet fabric surface fluffy dense towering, feel thick, full, soft, elastic, woven into the blank fabric after the first cut, pre-form, dyeing, and then by pulling the hair, combing, shearing and other treatments, the back of the fabric has a pulling effect, the fluffy dense and not easy to fall out of the hair, the typical varieties of "coral velvet" and so on.
Such fabrics are prone to quality problems are: the finished product style does not meet the requirements, such as hair is not shrugged, inverted hair, fabric feel too soft and not firm, and no luster; network points too firm, the finished fabric network points can not be opened, wire head elbow, in the formation of obvious sesame seed points on the surface of the cloth; blank cloth after cutting the width of the vertical stripes in the cloth; finished product can not reach the predetermined shrinkage rate, the friction between the fibers is not enough to pull the hair on the reverse side of the poor, causing the finished product to fall out of hair. The finished product caused by hair loss.
This kind of varieties of raw materials requirements include: generally use ultra-fine denier, appearance straight and glossy, silk bundle embracing good, style between DTY and FDY; in order to facilitate the 700 m/min high-speed rewinding, raw materials are added network, in order to make the raw materials have better fluffiness to facilitate the opening of the hair, the network nozzle aperture than the ordinary filament diameter is smaller than 0.1 ~ 0.2 mm, so as to facilitate the finished product to open the network points in the post-processing; elongation of 15% to 0.2%. Network points; elongation of 15% to 20%, boiling water shrinkage rate of 2.5% to 3.0%, high rate of curl stabilization to ensure that the cloth surface has a large gap, fluffy and soft, no slippage between the filaments, size stability.
Adapt to such varieties of raw materials, the key points of the elasticization process are: in order to produce quality, the deformation of the processing speed stabilized at 660m/min or less; the first heating box temperature H1 to 180 ~ 190 ℃, H2 higher than the H1 2 ~ 7 ℃; D / Y ratio as small as possible in order to make the false-twist twist is as small as possible; K value is adjusted to 0.9 ~ 1.0; the stretch multiplier in the absence of stiffness of the silk as far as possible to adjust the lower; to facilitate the rewinding and less hairy filaments. For the convenience of unwinding and less hairy silk, pre-net (pressure of 0.5 kg/cm2) and middle net (pressure of 0.8-1.0kg/cm2) are added at the same time.
Weft Knitted Fabrics
Flat fabrics
Flat fabrics are made of low elastic polyester filaments of the same fiber or interwoven with low elastic filaments of different fiber. This kind of fabric is prone to quality problems mainly include: the finished fabric surface has a horizontal file, uneven; the finished product has poor resilience and unstable size.
This type of varieties of low grade, most of the transfer printing process, the general requirements for raw materials, dyeing requirements in the 4.0 level or so, elongation of 20% to 25%, boiling water shrinkage rate of 3.5% to 4.5%, fluffiness, shrinkage rate, curl elasticity of the return rate and the stability of the rate requirements of the high, the size of the residual torque is not taken into account to ensure that the finished product shrinkage effect is good.
Adapt to such varieties of raw materials, plus the key points of the elasticity process for: deformation processing speed of 750 ~ 790 m/min; the first heating box temperature H1 to take 195 ~ 205 ℃; H2 H1 lower 35 ~ 45 ℃; D / Y ratio as high as possible, in order to increase the false twist twist, K value adjusted to 0.75 ~ 0.85; as small as possible to stretch multiples (adjusted to the stiffness of the silk out of the time until the end).
Pilling
Pilling class weft knitting fabric cloth body is dense and thick, feel firm, fabric drape good, dense surface velvet towering, mainly used as winter clothing, children's clothing fabrics, typical varieties of "shaking velvet" (a "single shake" and "double shake " points) and so on.
Such fabrics are prone to quality problems are: blank cloth surface is not flat, raw material file, finished fabric color is poor, there is a horizontal file; post-treatment is not easy to pull hair, finished products are easy to fall out; shearing due to the length of the plush is uneven or too long and had to be more shearing, so the finished product has a high rate of loss.
The requirements of such products on raw materials mainly include: raw materials directly on the weaving machine when the retreat winding speed is not high, the requirements of the network degree is not high (ultra-fine denier silk need to add light net), dyeing requirements in the 4.5 level or more, elongation of 10% to 15%, boiling water shrinkage rate of 4.0% to 4.5%, the rate of shrinkage, curling elasticity of the rate of return and stability of the rate is high, the size of the residual torque will not be taken into account to ensure that the finished product of the high shrinkage.
Adaptation of such varieties of raw materials, plus the key points of the elasticity process for: deformation processing speed of 750 ~ 790m/min; the first heating box temperature H1 to take 195 ~ 205 ℃, H2 H1 lower 35 ~ 45 ℃; D / Y ratio as high as possible, so that the false-twist twist, K value adjusted to 0.7 ~ 0.8; tensile multiplier adjusted to the appropriate elongation rate can be.