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FABRIC PRODUCTION PROCESSRelease date：2022-02-17 Number of views：346
The words grey cloth and white cloth refer to a kind of cloth. They are collectively referred to as grey cloth or white cloth, which is also often referred to as cloth. The cloth woven by circular machine without dyeing is also semi-finished cloth. What about the production process of grey cloth?
I Production process of white cloth
II Tasks of each production process
1. Tasks of winding process.
2. Make the original yarn transported from the textile factory into bobbins with large capacity.
3. Check the yarn. Remove yarn defects.
4. The yarn is wound into a uniform and solid package under a certain tension, so that the warp tension is consistent during warping.
5. Task of warping process: according to the process design requirements, a certain number of warp yarns are wound on the warp shaft in parallel and evenly according to the specified length.
6. Task of sizing process: improve the weavability of cloth warp, improve yarn strength and reduce end breakage.
7. Task of reed threading process: thread the warp wound on the weaving shaft into the heald eye and reed according to the process design requirements, so as to meet the needs of weaving process.
8. The weaving process of cloth weaving process includes: opening, weft insertion, beating up, coiling and let off.
III Quality evaluation range of grey cloth
1. Fabric structure
When evaluating a fabric, first look at whether it meets the design requirements. If it does not meet the requirements and is eliminated, the cloth will be degraded automatically.
2. Width of cloth
The deviation between the width of superior fabric and first-class fabric and the specified value shall not exceed + 1.5% - 1.0%. If it exceeds the above range but is within + 2.0% - 1.5%, it can be rated as second-class fabric, otherwise it can be rated as third-class fabric.
3. Density of grey cloth
Warp density deviation of superior and first-class fabrics shall not exceed - 1.5%, and weft density deviation shall not exceed - 1.0%.
(1) breaking strength (2) NEP impurity defect (3) cloth surface defect
IV Grey cloth post-processing procedure
1. Bleached cloth: clean the grey cloth.
2. Fabric dyeing: high temperature dyeing is adopted according to the characteristics of different colors of fabrics absorbed by different warp and weft materials.
3. Fabric shaping: the fabric will be more flat and soft after this process, which is an essential link.
4. Cloth finishing: there are many finishing cloth processes, mainly to change the appearance and performance of the cloth, etc.
Technological process of woven grey fabric factory
Warping: a one-step process of converting the original yarn (bobbin yarn) into warp yarn (beam) through the yarn frame. It is divided into three types: original yarn warping, color yarn warping and partial warping.
Sizing: the beam after sizing and warping or the beam after dyeing (warp shaft yarn) is hung on the yarn frame of the sizing machine and passes through the slurry in the slurry tank → tin for drying → yarn splitting frame layering → integrated into fabric beam. Main function: compress the cilia of the original yarn through the slurry, so that the cilia are not pressed on the loom due to friction.
Heald threading: the original pulp yarn passes through three kinds of auxiliary accessories such as warp stop, heald and reed, so as to facilitate the weaving of warp stop: one of the induction equipment to prevent warp breakage, which can complete the induction with the warp stop rod
Heald: one of the equipment to change the texture of weaving. It can complete the texture change with the peach tray and lifting heald of the loom.
Reed: it can complete the action of weaving with the input of weft and the change of heald lifting.
On the loom: an action of hanging the heald worn shaft yarn on the loom through the carriage of the on-board locomotive.
Self connection: the beam after sizing is directly completed by the action of the knotter without threading, and the result is the same as that on the machine.
Weaving: put the worn shaft yarn on the loom to complete the weaving action with the input of weft and the operation of the loom.
Blank inspection: after weaving, the blank inspection personnel will complete the inspection action according to the CNS inspection standard, so as to understand the quality status after weaving, so as to facilitate the function of embryo cloth dyeing
Fabric: it is a fabric made of two or more groups of mutually perpendicular yarns interwoven at a 90 degree angle. The longitudinal yarn is called warp and the transverse yarn is called weft.
Principle difference between shuttle weaving and knitting
Every intersection between warp and weft is called weave point, which is the smallest basic unit of woven fabric. Because the warp and weft interlaced places are somewhat bent, and the run is bent in the direction perpendicular to the fabric plane, the degree of bending is related to the mutual tension between warp and weft yarns and the yarn stiffness. When the shuttle fabric is subjected to external tension, such as longitudinal tension, the tension of warp yarn increases and the bending decreases, while the bending of weft yarn increases, such as continuous longitudinal tension, Until the warp is completely straightened, and the fabric shrinks laterally.
When the shuttle fabric is stretched laterally by external tension, the tension of the weft increases and the bending decreases, while the bending of the warp increases. For example, the transverse stretching does not stop until the weft is completely straightened, and the fabric shrinks longitudinally at the same time. Unlike knitted fabrics, warp and weft yarns do not change. Because the warp and weft extension of shuttle fabric has little relationship with shrinkage and there is no conversion, the fabric is generally tight and hard. The physical and mechanical properties of woven fabrics, including the yarn density of warp and weft, selvage, front and back sides, wool direction and fabric coverage.
I Production process of white cloth
II Tasks of each production process
1. Tasks of winding process.
2. Make the original yarn transported from the textile factory into bobbins with large capacity.
3. Check the yarn. Remove yarn defects.
4. The yarn is wound into a uniform and solid package under a certain tension, so that the warp tension is consistent during warping.
5. Task of warping process: according to the process design requirements, a certain number of warp yarns are wound on the warp shaft in parallel and evenly according to the specified length.
6. Task of sizing process: improve the weavability of cloth warp, improve yarn strength and reduce end breakage.
7. Task of reed threading process: thread the warp wound on the weaving shaft into the heald eye and reed according to the process design requirements, so as to meet the needs of weaving process.
8. The weaving process of cloth weaving process includes: opening, weft insertion, beating up, coiling and let off.
III Quality evaluation range of grey cloth
1. Fabric structure
When evaluating a fabric, first look at whether it meets the design requirements. If it does not meet the requirements and is eliminated, the cloth will be degraded automatically.
2. Width of cloth
The deviation between the width of superior fabric and first-class fabric and the specified value shall not exceed + 1.5% - 1.0%. If it exceeds the above range but is within + 2.0% - 1.5%, it can be rated as second-class fabric, otherwise it can be rated as third-class fabric.
3. Density of grey cloth
Warp density deviation of superior and first-class fabrics shall not exceed - 1.5%, and weft density deviation shall not exceed - 1.0%.
(1) breaking strength (2) NEP impurity defect (3) cloth surface defect
IV Grey cloth post-processing procedure
1. Bleached cloth: clean the grey cloth.
2. Fabric dyeing: high temperature dyeing is adopted according to the characteristics of different colors of fabrics absorbed by different warp and weft materials.
3. Fabric shaping: the fabric will be more flat and soft after this process, which is an essential link.
4. Cloth finishing: there are many finishing cloth processes, mainly to change the appearance and performance of the cloth, etc.
Technological process of woven grey fabric factory
Warping: a one-step process of converting the original yarn (bobbin yarn) into warp yarn (beam) through the yarn frame. It is divided into three types: original yarn warping, color yarn warping and partial warping.
Sizing: the beam after sizing and warping or the beam after dyeing (warp shaft yarn) is hung on the yarn frame of the sizing machine and passes through the slurry in the slurry tank → tin for drying → yarn splitting frame layering → integrated into fabric beam. Main function: compress the cilia of the original yarn through the slurry, so that the cilia are not pressed on the loom due to friction.
Heald threading: the original pulp yarn passes through three kinds of auxiliary accessories such as warp stop, heald and reed, so as to facilitate the weaving of warp stop: one of the induction equipment to prevent warp breakage, which can complete the induction with the warp stop rod
Heald: one of the equipment to change the texture of weaving. It can complete the texture change with the peach tray and lifting heald of the loom.
Reed: it can complete the action of weaving with the input of weft and the change of heald lifting.
On the loom: an action of hanging the heald worn shaft yarn on the loom through the carriage of the on-board locomotive.
Self connection: the beam after sizing is directly completed by the action of the knotter without threading, and the result is the same as that on the machine.
Weaving: put the worn shaft yarn on the loom to complete the weaving action with the input of weft and the operation of the loom.
Blank inspection: after weaving, the blank inspection personnel will complete the inspection action according to the CNS inspection standard, so as to understand the quality status after weaving, so as to facilitate the function of embryo cloth dyeing
Fabric: it is a fabric made of two or more groups of mutually perpendicular yarns interwoven at a 90 degree angle. The longitudinal yarn is called warp and the transverse yarn is called weft.
Principle difference between shuttle weaving and knitting
Every intersection between warp and weft is called weave point, which is the smallest basic unit of woven fabric. Because the warp and weft interlaced places are somewhat bent, and the run is bent in the direction perpendicular to the fabric plane, the degree of bending is related to the mutual tension between warp and weft yarns and the yarn stiffness. When the shuttle fabric is subjected to external tension, such as longitudinal tension, the tension of warp yarn increases and the bending decreases, while the bending of weft yarn increases, such as continuous longitudinal tension, Until the warp is completely straightened, and the fabric shrinks laterally.
When the shuttle fabric is stretched laterally by external tension, the tension of the weft increases and the bending decreases, while the bending of the warp increases. For example, the transverse stretching does not stop until the weft is completely straightened, and the fabric shrinks longitudinally at the same time. Unlike knitted fabrics, warp and weft yarns do not change. Because the warp and weft extension of shuttle fabric has little relationship with shrinkage and there is no conversion, the fabric is generally tight and hard. The physical and mechanical properties of woven fabrics, including the yarn density of warp and weft, selvage, front and back sides, wool direction and fabric coverage.
