The production process of corduroy fabrics from raw materials to grey fabrics, grey cloth fabrics and white fabrics refers to a fabric, collectively referred to as grey fabric or white fabric, also often referred to as cloth. It is a fabric that has been woven by a circular machine and has no dyed fabric. It is also a semi-finished fabric.
White blank fabric production process
1. Winding: 1The original yarn conveyed by the spinning mill is made into a large-sized cheese yarn; 2; the yarn is checked; 3 the yarn defect is removed; 4 the yarn is wound into a uniform and solid package under a certain tension. In order to warp the warp tension is consistent.
2. Warping: According to the process design requirements, a certain number of warp yarns are wound into the warp beam in parallel and evenly according to the specified length.
3, sizing: improve the woven fabric warp woven, improve the yarn strength, reduce breakage.
4. Wear the warp: According to the process design requirements, the warp yarn wound on the weaving shaft is inserted into the eyelet and the steel twist to meet the needs of the weaving process.
5, weaving: opening, weft insertion, beating, winding and delivery.
Quality evaluation range of grey fabric
1. Cloth fabric organization: A fabric should first be evaluated to meet the design requirements. If it does not meet and the fabric is automatically degraded.
2. Fabric width: The deviation between the width of the superior fabric and the first-class fabric and the specified value shall not exceed +1.5% ~-1.0%. If it exceeds the above range, it can be rated as second-class product at +2.0% ~-1.5%. Cloth, otherwise rated as third-class fabric.
3. Denim fabric density: The density deviation of the superior and first-class fabrics shall not exceed -1.5%, and the weft density deviation shall not exceed -1.0%. (1) Breaking strength (2) Neps impurities (3) Fabric processing after processing
1, fabric open burning hair: cut velvet hair.
2. Bleached fabric: Clean the grey fabric.
3, fabric dyeing: according to the different materials of the warp and weft and absorb the characteristics of different color fabrics and high temperature dyeing.
4, fabric stereotypes: cloth after this process will be more flat and soft is an essential part.
5, fabric finishing: there are many finishing processes, mainly to change the appearance and performance of the fabric and so on.
Woven fabric factory process warping: the one-step process of converting the original yarn (bobbin yarn) into a warp (Beam), which is divided into three types: original yarn warping, color yarn whole yarn and partial warping.
Sizing: After the pulp is finished, the Beam or the dyed Beam is hanged on the creel of the sizing machine, and the slurry in the slurry tank → the cylinder for drying → the creel is layered. → Integrate into a weaving Beam. The main function: the cilia of the original yarn is compressed by the slurry, so that the cilia can not be used to rub the cotton ball on the loom.
Wear the whole: The raw yarn passes through three kinds of accessory parts such as the dropper, heald and steel shovel for weaving.
Warp: One of the sensing devices that prevent the warp from breaking, and the induction can be completed with the warp beam.
Healds: One of the equipments for changing the weaving and weaving of the weaving, we can complete the texture change with the peach plate and the lifting machine of the loom.
Steel shovel: The movement of the woven fabric can be completed by the input of the weft yarn and the change of the weft.
On the machine: a kind of action of hanging the well-worn yarn through the locomotive and hanging on the looms.
Self-connecting: After the sizing, the Beam does not have to be completed directly by the knotting machine through the wearing of the heald, and the result is the same as that of the machine.
Weaving: The operation of the weaving is performed by the input of the weft yarn on the loom and the operation of the weaving machine.
Blank inspection: After the woven fabric is finished, the inspection personnel will complete the inspection operation by CNS inspection standard to understand the quality condition after the completion of the woven fabric, and the functional woven fabric for the dyeing of the woven fabric: two or more sets The mutually perpendicular yarns are woven into warp and weft at a 90 degree angle, the longitudinal yarn is called warp yarn, and the transverse yarn is called weft yarn.
Each point of intersection between the warp and weft yarns is called the tissue point and is the smallest basic unit of the woven fabric. Where the warp and weft yarns are interlaced somewhat, and the weir is bent in a direction perpendicular to the plane of the fabric, the degree of bending is related to the mutual tension between the warp and weft yarns, and the yarn stiffness, when the woven fabric is subjected to external tension, such as in the longitudinal direction. When stretched, the tension of the warp yarn increases, the bending decreases, and the bending of the weft yarn increases, such as longitudinal stretching, until the warp yarn is completely straightened, while the fabric shrinks laterally.
When the woven fabric is stretched in the transverse direction by the external tension, the tension of the weft yarn is increased, the bending is reduced, and the warp yarn bending is increased, such as the transverse stretching, until the weft yarn is completely straightened, and the fabric is longitudinally contracted. The warp and weft yarns do not change, unlike knitted fabrics. Because of the woven fabric, the weft extension and shrinkage have little relationship, and no conversion occurs. Therefore, the fabric is generally compact and quite hard. The physical and mechanical properties of the woven fabric, including the yarn density of the warp and weft yarns, the hem, the front and back, the reverse wool direction, and the fabric coverage.
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