CN-117089971-B - Cloth edge process for solving hemming problem of double-layer fabric with elastic back surface

Abstract

The invention provides a selvedge process for a weaving procedure for solving the problem of double-layer fabric hemming with elastic force on a reverse side, which comprises the steps of adjusting selvedge tissues, selvedge width and selvedge tightness, wherein the selvedge tissues are used by matching single-layer tissues with double-layer tissues, the double-layer tissues adopt tissues with layers being replaced with the front side and the back side of a ground tissue, the selvedge width is 2.5-3.0 cm, and the selvedge tightness is adjusted according to yarn varieties. In the production process, the rigidity of the selvedge is increased by adjusting the selvedge structure and the raw material composition, so that the double-layer fabric with the elastic back surface can be produced without any dyeing and finishing equipment or manual assistance, the obtained double-layer fabric with the elastic back surface has no curling and other problems, the quality of products is improved, the market competitiveness of the varieties is improved, and meanwhile, the production cost and the labor intensity of workers are effectively reduced because the manual selvedge ironing and other treatments are not needed.

Inventors

• ZHAO LIANG
• LIU GANGZHONG
• XU XIAHONG
• CHANG TINGTING
• GAO SEN
• SUN HAIYAN
• ZHANG MINGYUE

Assignees

• 山东南山智尚科技股份有限公司

Dates

Publication Date

20260505

Application Date

20230816

Claims (3)

1. 1. The selvedge process of the weaving procedure for solving the problem of the hemming of the double-layer fabric with elastic force on the back surface is characterized by comprising the steps of adjusting selvedge tissues, selvedge width, selvedge tightness and selvedge raw materials; The selvedge structure adopts a joint structure formed by matching a single-layer structure and a double-layer structure, wherein the double-layer structure used by the selvedge structure adopts the double-layer structure of the ground structure to perform front and back layer exchange; When the selvedge structure is adjusted, the single-layer structure is 2/2 of the double-layer structure, and the double-layer structure is a plain double-layer structure; in the process of adjusting the selvedge weave, when a double-layer plain weave which is used for exchanging layers with the selvedge weave is adopted, the selvedge double-layer weave after exchanging layers is adopted, the weft yarns of the inner layer of the selvedge are normal yarns, and the weft yarns of the surface layer are elastic yarns; the width of the selvedge is 2.5-3.0 cm; the selvedge tightness is adjusted according to yarn varieties; The selvedge raw material is added with viscose or Mao Disha with smaller shrinkage; adding viscose or wool polyester yarn accounting for 45-55% of the total weight of the selvedge into the selvedge.
2. 2. The selvedge process of claim 1 for solving the problem of hemming a double layer fabric having a resilient back side, wherein the number of selvedge frames is 8 when a combination is used.
3. 3. The selvedge process of claim 1, wherein the selvedge tightness is increased by increasing the warp density of the selvedge in adjusting the selvedge tightness.

Description

Cloth edge process for solving hemming problem of double-layer fabric with elastic back surface Technical Field The invention relates to the technical field of textile, in particular to a selvedge process of a weaving procedure for solving the problem of hemming a double-layer fabric with elastic back surface. Background When designing the selvedge, the selvedge weave structure should select the double-sided weave with the same number of floating points of the warp and weft on the front and back sides. For a simple weave fabric, the average float length of the selvedge weave warp and weft is the same as that of the ground weave, and for a 1/1 and 2/2 double-sided fabric with similar ground weave, no matter whether the yarn has elasticity or not, the selvedge adopts the conventional double-sided weave. In recent years, with the improvement of the wearing performance and comfort requirements of people on fabrics, wool fabrics also develop elastic fabrics, which have wide width due to elasticity, and are often shrunk 40-50 cm from grey cloth to finished products in the after finishing process, when double-layer fabrics with elasticity on the back surface, namely the inner layer with elasticity and the surface layer without elasticity are woven, the elastic yarns have large shrinkage after finishing, so that the rolling cloth can influence the normal production of dyeing and finishing processes, and even the folding and crease of the finished fabrics can be caused, so that the normal delivery is influenced. The problem of curling of the double-layer fabric with the elastic reverse surface is caused by the fact that the weave structure of the fabric cannot resist the difference of stress caused by different elastic force of yarns on the front side and the back side, and the difference of shrinkage force on the front side and the back side is the root cause of the curling. The spandex has better elasticity and higher elastic recovery rate, and the elasticity and the comfort of the fabric can be obviously improved when the spandex is added into the fabric, and the clothing made of the fabric has better shape retention and comfort when being worn. The chemical property of spandex is complex, people have certain limitation on the performance understanding, and due to the influence of the original dyeing and finishing equipment, the structure of the fabric and other factors, the double-layer elastic fabric of spandex elastic yarn often has the curling problem in the dyeing and finishing treatment process, and due to curling, the fabric body position within 30 cm close to the edge is extremely easy to fold, so that folds of the finished fabric are caused, and in order to reduce the influence of the problem on the finished fabric, the dyeing and finishing process is carried out in a manual auxiliary production mode, such as manual edge ironing and other operations, so that the production efficiency is reduced, the labor intensity and the labor cost are increased, and the market competitiveness of the finished fabric is further reduced. In this regard, the invention provides a solution to the problem of curling in the process of producing the double-layer fabric with elastic back surface. Disclosure of Invention Aiming at the defects in the prior art, the invention provides a selvedge process of a weaving process for solving the problem of hemming a double-layer fabric with elastic reverse surface. The production process aims at the double-layer fabric with elastic reverse surface, so as to reduce the production difficulty and labor cost of dyeing and finishing procedures, improve the quality of finished fabric, and perform experiments on selvedge design in multiple aspects in the weaving procedure, and mainly aims to enlarge the counter balance of the selvedge and the change of the front and back stresses of the fabric. The technical scheme of the invention is as follows: The invention relates to a selvedge weaving process for solving the problem of hemming of a double-layer elastic fabric with a back side, which is characterized in that only the warp and weft yarns of the back side (the back side) are elastic yarns, the surface layer (the front side) is normal yarns, and the shrinkage of the back side of the elastic yarns after finishing is large, so that the selvedge hemming is serious; the selvedge structure adopts a combined structure formed by matching a single-layer structure and a double-layer structure, wherein the double-layer structure used by the selvedge adopts a double-layer structure with a ground structure to change layers on the front side and the back side; The selvedge structure design is the key of the selvedge weaving process, and is different from the square or heavy flat structure used by the traditional selvedge, the selvedge structure is matched with the double-layer structure for use, and the stress on the front side and the back side of the elastic yarn is balanced by utilizing the change of t