CA-3187176-C - KNITTED FABRIC AND USE THEREOF

Abstract

Disclosed in the present invention are a knitted fabric and a use thereof. The knitted fabric comprises an elastic yarn A and a single-sided knitted fabric containing a polyurethane fiber, and a coil surface comprises a coil together formed by the elastic yarn A and the polyurethane fiber that are separately fed. The knitted fabric of the present invention is close to a woven fabric in appearance and performance, has good elasticity, and is particularly suitable for manufacturing coats, trousers, dresses or the like.

Inventors

• Hongxia Xia
• Qiang Wang
• Chao Guo
• Hongchuan JING

Assignees

• TORAY FIBERS&TEXTILES RESEARCH LABORATORIES (CHINA) CO., LTD.
• Toray International (China) Co., Ltd.

Dates

Publication Date

20260505

Application Date

20210611

Priority Date

20200615

Claims (1)

1. 90212587 18 CLAIMS: 1. A knitted fabric, wherein the knitted fabric is a single-sided knitted fabric comprising an elastic yarn A and a polyurethane fiber, and a coil surface comprises a coil together formed by the elastic yarn A and the polyurethane fiber that are separately fed, and wherein in a weave-repeat on a warp-wise section of the knitted fabric along a transverse direction, the area sum S1 of the elastic yarn A and the polyurethane fiber and the total area S2 of the coil in a weave-repeat satisfy the following formula: 10≦(S1/S2) *100≦35. 2. The knitted fabric according to claim 1, wherein the elastic yarn A is one or more of a polytrimethylene terephthalate fiber, a polybutylene terephthalate fiber, a polyethylene terephthalate/polytrimethylene terephthalate composite fiber, a polyethylene terephthalate/polybutylene terephthalate composite fiber, and a polyethylene terephthalate composite fiber comprising two polyethylene terephthalates with different viscosities. 3. The knitted fabric according to claim 1, wherein the ratio of the total fiber numbers of the elastic yarn A to the total fiber numbers of the polyurethane fiber is 0.5-2.5. 4. The knitted fabric according to any one of claims 1-3, wherein the elongations in the transverse direction and the longitudinal direction of the knitted fabric are both 10%- 60%, and the elongation recovery rate is above 80%. 5. The knitted fabric according to any one of claims 1-3, wherein the ventilation volume of the knitted fabric is 3.0-10.0 cm3 /cm ·s. 6. The knitted fabric according to any one of claims 1-3, wherein the bending rigidity of the knitted fabric is 0.20-0.35 gf.cm /cm. 7. Coats, trousers or dresses made of the knitted fabric according to any one of claims 1-3.

Description

KNITTED FABRIC AND USE THEREOF TECHNICAL FIELD [0001] The present invention relates to a knitted fabric and a use thereof, in particular to a knitted fabric with excellent dimensional stability and a use thereof. BACKGROUND [0002] It is well-known that knitted fabrics are made of coils in series, and the coils are easy to move, so it has good elasticity and extensibility, but the dimensional stability is relatively poor, and it is easy to detach and deform. [0003] At present, most of the knitted fabrics on the market improve the dimensional stability by adopting a double-sided knit or a double-layer structure.For example, patent document CN203475075U discloses a dimensionally-stable knitted fabric. A bonding fiber and a main yarn raw material are interwoven by a plaiting or plaiting jacquard mode, after weaving is completed, a surface layer of the bonding fiber is fused in a heat setting working procedure, and a fusion node is naturally formed inside the fabric. A contact point between yarns is not easy to slip while the knitted fabric is stretched by an external force, the dimensional stability of the knitted fabric is greatly improved, and the physical style of the fabric is also more inclined to woven fabrics, but the use of the bonding fiber may not only increase the production cost, but also the control of fusion conditions during the heat setting is more cumbersome; in addition, even if the fusion node is hidden in the middle of the fabric, the fusion node may still be exposed to skin in a wearing process due to factors such as stretching, and the wearing comfort is affected. [0004] For another example, patent document CN204325675U discloses a polyester-cotton interwoven weft-knitted concave-convex imitation woven fabric. A front side is composed of a fat pattern yarn area and a ground yarn area, and a reverse side is entirely composed of the ground yarn area, and the ground yarn area is a ground yarn coil area made of a high shrinkage polyester filament yarn. Since the high shrinkage polyester filament yarn on the reverse side is shrunk while heated, the density of the fabric is greatly improved, but the high extensibility of the knitted fabric disappears due to the slip and shrinkage of the coils, and the extensibility is even lower than general fabrics, the wearing comfort is greatly affected. [0005] For another example, patent document JP laid-open 58-81661 discloses a warp-knitted Date Rei;:ue/Date Received 2022-12-14 fabric with high elasticity and woven style. The warp-knitted fabric contains more than 5 weight% of a polyurethane elastic fiber, and is formed by two or more warp yams that are not looped between adjacent coil rows and are continuously inserted in a longitudinal direction. The surface of the warp-knitted fabric presents the woven style interwoven by warp and weft yams, and the inside has the good dimensional stability because of a warp-knitted structure, but in fact, even if a special warp-knitted process is used, the tightness of the fabric is still insufficient, and the process is complicated and the cost is higher. SUMMARY [0006] A purpose of the present invention is to provide a knitted fabric with simple process, low production cost, dimensional stability and appearance of a woven fabric, and excellent elasticity, which is suitable for manufacturing coats, trousers, dresses or the like. [0007] A technical scheme of the present invention is as follows. [0008] The knitted fabric of the present invention is a single-sided knitted fabric including an elastic yarn A and a polyurethane fiber, and a coil surface includes a coil together formed by the elastic yam A and the polyurethane fiber that are separately fed. [0009] In the present invention, since the elastic yam A and the polyurethane fiber are respectively fed and formed into a loop on the coil surface, the obtained knitted fabric is tightly arranged in coils and is not easily deformed, the appearance is similar to the woven fabric, has good elasticity, and the wearing comfort is greatly improved. No special processing conditions are required, the process is simple and easy, and the cost is low, and it is especially suitable for manufacturing the coats, trousers, dresses or the like. DETAILED DESCRIPTION [0010] In view of the compactness of the fabric, the present invention adopts a single knit structure in which more coils are connected in series with the coils. [0011] The molecular structure of the polyurethane fiber is a chain-like, soft and extensible polyurethane. By connecting with a hard chain segment, it has the higher elasticity and better elastic recovery. Certain shrinkage in a processing process after dyeing may tighten the coils, and the knitted fabric is endowed with an imitation woven style. The polyurethane fiber (PU for short) in the present invention refers to a spandex bare fiber. On the other hand, the elastic yarn A is a non-polyurethane-based elastic yam, preferably a non-polyurethane-based yam with a c