A kind of high elastic cotton comfortable quick-drying knitted fabric and preparation method thereof

Abstract

The present invention discloses a high-elastic cotton-like comfortable quick-drying knitted fabric and a preparation method thereof. The fabric is woven using high-elastic cotton-like imitation cotton yarn. The fabric surface forms a concave-convex fine-strip texture formed by a regular combination of shrinking loops and ordinary cotton-like loops. The shrinking loops are evenly distributed on the fabric surface, giving the chemical fiber fabric an appearance similar to linen imitation. The lateral length L of the shrinking loops is 3-10 mm, while the lateral length L0 of the ordinary cotton-like loops is 6-15 mm. The high-elastic cotton-like imitation cotton yarn has a core-sheath structure, wherein the core yarn is a bicomponent polyester fiber and the sheath yarn is a polyester fiber. The core yarn is drafted at a certain ratio, and the sheath yarn is wrapped around the core yarn in a certain manner. The height L2 of the highest point of the sheath yarn loops is 2-10 mm, and the highest point spacing L3 between the loops is 3-15 mm. The fabric of the present invention has excellent anti-snagging and anti-pilling properties through the control of knitting conditions.

Description

Technical Field

[0001] The invention belongs to the field of textile fabrics, and particularly relates to a high-elastic cotton-adjusted comfortable quick-drying knitted fabric and a preparation method thereof. Background Art

[0002] Chemical fiber fabrics have always had a fatal flaw: they feel rough and are not as comfortable as cotton products. This is also a concern for consumers, especially Chinese consumers.

[0003] Currently, there are many fabrics with a cotton-like feel on the market. For example, patent document CN202020409062.9 discloses a sports suit fabric that uses composite fabric technology. The surface layer uses a tuck and float weave method to create a concave and convex feel, and the inner layer uses a composite yarn for plain weave to create a cotton-like visual and feel. However, this method is relatively complex. Not only is the fabric cost high, but the surface concave and convex texture is also complicated, and the cotton-like effect is reduced.

[0004] Of course, there are also cotton-like yarn designs based on raw yarn. For example, patent document CN202220646308.3 discloses an elastic, shrinkage, and color-matching cotton-like yarn, fabric, and preparation method thereof. It achieves the cotton-like effect through a composite processing of TSLAN on a false twisting machine. This method produces a good cotton feel, but the process is complex and the cost is high.

[0005] Therefore, the existing imitation cotton fabrics need to be further improved, and the change of the imitation cotton feel of the fabrics can be achieved through the preparation and change of yarns. Summary of the Invention

[0006] Purpose of the invention: In order to solve the deficiencies of the prior art, the present invention provides a high-elastic cotton-toned comfortable quick-drying knitted fabric and a preparation method thereof.

[0007] Technical solution: A high-elastic cotton-toned comfortable quick-drying knitted fabric, the fabric being woven using high-elastic cotton-toned imitation cotton yarn. The surface of the fabric is formed with a concave-convex texture of shrinking coils and ordinary cotton-feeling coils in a certain pattern. The shrinking coils are evenly distributed on the surface of the fabric, giving the chemical fiber fabric a linen-like appearance. The transverse length L of the shrinking coils is 3-10 mm, and the transverse length L0 of the ordinary cotton-feeling coils is 6-15 mm.

[0008] The high-elastic cotton imitation cotton yarn has a core-sheath structure, wherein the core yarn is a bicomponent polyester fiber and the sheath yarn is a polyester fiber; the core yarn is drafted at a certain ratio, and the sheath yarn is wrapped around the core yarn in a certain manner; the height L2 of the highest point of the loops of the sheath yarn is 3-5 mm, and the highest point spacing L3 between the loops is 4-8 mm.

[0009] As an optimization, the content of the two-component polyester fiber accounts for more than 30% of the total weight of the high-elastic cotton imitation cotton yarn.

[0010] As an optimization, the fineness of the core yarn is 30-100 dtex; the fineness of the sheath yarn is 20-100 dtex.

[0011] As an optimization, the elongation of the core yarn is 1.5-2.8.

[0012] A method for preparing a high-elastic cotton-toned comfortable quick-drying knitted fabric comprises the following steps:

[0013] Step 1: Yarn processing: The high-elastic cotton imitation cotton yarn is subjected to false twist deep processing to make its strength 3-6g / d, elongation 15-35%, CR value 30%-50%, and boiling yield 3-10%;

[0014] Step 2: Weaving the fabric: The treated high-elastic cotton yarn is knitted on a circular knitting machine with 28 needles or more in various weaves as needed. The weaving weaves include plain, pique, Roman, corrugated, ribbed, mesh, and variable weaves. The high-elastic cotton yarn accounts for more than 50% of the fabric.

[0015] Step 3: Sanding of fabric: The fabric can be sanded inside, on the surface, or both inside and outside.

[0016] Step 4: Dyeing and finishing of fabrics: fabric refining - dyeing (water absorption treatment in bath) - padding resin treatment - finishing and shaping.

[0017] As an optimization: the weaving conditions of the fabric are as follows: assuming that the length of 100 coils knitted with high-elastic cotton imitation cotton yarn is L1, when all loops are woven, 190cm≤L1≤250cm; when a combination of tucking, looping and floating is woven, 160cm≤L1≤230cm.

[0018] As an optimization, the weft elasticity of the fabric is 100-150%, and the warp elasticity is 80-120%.

[0019] As an optimization: the stiffness and softness of the fabric according to JIS L 1096A method (45° cantilever stiffness and softness) is less than 2 cm.

[0020] As an optimization: before and after washing, the fabric has snagging and pilling levels above level 4; and when the fabric is stretched 50% in both warp and weft directions, the snagging and pilling levels are still above level 4.

[0021] As an optimization: the fabric adopts the drip method GB / T21655.1 L0 / L5 of less than 1s; the water absorption rate GB / T21655.1 L0 / L5 is greater than 200%, the evaporation rate GB / T21655.1 L0 / L5 is greater than 0.3; the wicking height GB / T21655.1 L0 / L5 is greater than 20cm.

[0022] Advantageous Effects: Fabrics made from conventional imitation cotton yarns are prone to snagging and pilling due to their inherent characteristics. The fabric produced in this invention, through controlled weaving conditions, exhibits superior snagging and pilling resistance. It also maintains a good cotton feel, creating a undulating texture even with plain weaves. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the high-elastic anti-cotton yarn of the present invention;

[0024] Figure 2 It is a schematic diagram of the appearance structure of the fabric of the present invention. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below so that those skilled in the art can better understand the advantages and features of the present invention and thus more clearly define the scope of protection of the present invention. The embodiments described in the present invention are only some of the embodiments of the present invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without making any creative work shall fall within the scope of protection of the present invention.

[0026] Example

[0027] like Figure 1-2 As shown, a high-elastic cotton-toned comfortable quick-drying knitted fabric is woven using high-elastic cotton-toned imitation cotton yarn. The surface of the fabric forms a concave and convex stripe texture formed by a certain combination of shrinkage coils and ordinary cotton-feel coils in a certain pattern. The shrinkage coils are evenly distributed on the surface of the fabric, giving the chemical fiber fabric an appearance similar to imitation linen. The horizontal length L of the shrinkage coils is 3-10mm, and the horizontal length L0 of the ordinary cotton-feel coils is 6-15mm.

[0028] The high-elastic cotton imitation cotton yarn has a core-sheath structure, wherein the core yarn is a bicomponent polyester fiber and the sheath yarn is a polyester fiber. The core yarn is drafted at a certain ratio, and the sheath yarn is wrapped around the core yarn in a certain manner.

[0029] The height L2 of the highest loop of the sheath yarn is 3-5 mm, and the distance L3 between the highest points of the loops is 4-8 mm. The bicomponent polyester fiber accounts for at least 30% of the total weight of the high-elastic cotton yarn. The fineness of the core yarn is 30-100 dtex; the fineness of the sheath yarn is 20-100 dtex. The elongation of the core yarn is 1.5-2.8.

[0030] The method for preparing the high-elastic cotton-toned comfortable quick-drying knitted fabric comprises the following steps:

[0031] Step 1, yarn processing: the high-elastic cotton imitation cotton yarn is subjected to false twist deep processing to make its strength 3-6g / d, elongation 15-35%, CR value 30%-50%, and boiling yield 3-10%.

[0032] Step 2: Weaving the fabric: The treated high-elastic cotton imitation cotton yarn is knitted into various structures as needed on a high-needle circular knitting machine with 28 needles or more. The knitting structures are as follows: plain, pique, Roman, corrugated, rib, mesh and variable structures; the high-elastic cotton imitation cotton yarn accounts for more than 50% of the fabric.

[0033] Step 3: Brushing of fabric: The fabric can be brushed inside, on the surface, or both inside and outside to make it feel fuller.

[0034] Step 4: Dyeing and finishing of fabrics: fabric refining - dyeing (water absorption treatment in bath) - padding resin treatment - finishing and shaping.

[0035] In this embodiment, the fabric formed has excellent anti-snagging and anti-pilling properties through the control of knitting conditions. The knitting conditions for the fabric are as follows: Assuming that the length of 100 loops knitted with high-elastic cotton imitation cotton yarn is L1, when all loops are knitted, 190 cm ≤ L1 ≤ 250 cm; when a combination of tucking, looping, and floating is used, 160 cm ≤ L1 ≤ 230 cm.

[0036] The experimental data values ​​in this patent are shown in Table 1 below.

[0037] Table 1 Experimental data table

[0038]

[0039] In this embodiment, the weft elasticity of the fabric is 100-150%, the warp elasticity is 80-120%, and the stiffness of the fabric according to JIS L 1096A method (45° cantilever stiffness) is less than 2 cm.

[0040] Before and after washing, the prepared fabric has snagging and pilling properties above level 4; and when the warp and weft directions of the fabric are stretched by 50% at the same time, the snagging and pilling properties are still above level 4.

[0041] The fabric has a dripping method GB / T21655.1 L0 / L5 of less than 1s, a water absorption rate GB / T21655.1 L0 / L5 of greater than 200%, an evaporation rate GB / T21655.1 L0 / L5 of greater than 0.3, and a wicking height GB / T21655.1 L0 / L5 of greater than 20 cm.

Claims

1. A high-elastic cotton-blend comfortable quick-drying knitted fabric, characterized by: The fabric is woven using high-elastic cotton imitation cotton yarn. The surface of the fabric is formed with a concave-convex texture composed of shrinking coils and ordinary cotton-feeling coils. The shrinking coils are evenly distributed on the surface of the fabric, giving the knitted fabric an appearance similar to imitation linen. The transverse length L of the shrinking coils is 3-10 mm, and the transverse length L0 of the ordinary cotton-feeling coils is 6-15 mm. The high-elastic cotton imitation cotton yarn has a core-sheath structure, the core yarn is a two-component polyester fiber, and the sheath yarn is a polyester fiber; the core yarn is proportionally drafted, and the sheath yarn is wrapped around the core yarn; The height L2 of the highest point of the loops of the sheath yarn is 2-10 mm, and the highest point distance L3 between the loops is 3-15 mm; The content of the two-component polyester fiber accounts for more than 30% of the total weight of the high-elastic cotton imitation cotton yarn; The draft ratio of the core yarn is 1.5-2.

8.

2. The high-elastic cotton comfortable quick-drying knitted fabric according to claim 1, characterized in that: The fineness of the core yarn is 30-100 dtex; the fineness of the sheath yarn is 20-100 dtex.

3. A method for preparing the high-elastic cotton comfortable quick-drying knitted fabric according to claim 1, characterized in that: The steps include: Step 1: Yarn processing: False twist deep processing is performed on the high-elastic cotton yarn to make its strength 3-6g / d, elongation 15-35%, CR value 30%-50%, and boiling yield 3-10%; Step 2: Weaving the fabric: The treated high-elastic cotton imitation cotton yarn is knitted into various weaves as needed on a high-needle circular knitting machine with 28 needles or more. The weaving weaves are as follows: plain, pique, Roman, corrugated, rib, mesh, and variable weaves; the high-elastic cotton imitation cotton yarn accounts for more than 50% of the fabric; Step 3: Sanding of fabric: The fabric can be sanded inside, on the surface, or both inside and outside. Step 4: Dyeing and finishing of fabrics: fabric refining - dyeing, water absorption treatment in bath - padding resin treatment - finishing and shaping.

4. The method for preparing the high-elastic cotton comfortable quick-drying knitted fabric according to claim 3, characterized in that: The weaving conditions of the fabric are as follows: assuming that the length of 100 coils knitted with high-elastic cotton imitation cotton yarn is L1, when all loops are knitted, 250≤L1≤190; when a combination of tucking, looping and floating is knitted, 230≤L1≤160.

5. The method for preparing the high-elastic cotton comfortable quick-drying knitted fabric according to claim 3, characterized in that: The weft elasticity of the fabric is 100-150%, and the warp elasticity is 80-120%.

6. The method for preparing the high-elastic cotton comfortable quick-drying knitted fabric according to claim 3, characterized in that: The stiffness and softness of the fabric according to JIS L 1096 A method and the 45° cantilever method are less than 2 cm.

7. The method for preparing the high-elastic cotton comfortable quick-drying knitted fabric according to claim 3, characterized in that: Before and after washing, the fabric has snagging and pilling properties above level 4; and when the warp and weft directions of the fabric are stretched by 50% at the same time, the snagging and pilling properties are still above level 4.

8. The method for preparing the high-elastic cotton comfortable quick-drying knitted fabric according to claim 3, characterized in that: The fabric has a drop method GB / T21655.1 L0 / L5 of less than 1s; a water absorption rate GB / T 21655.1 L0 / L5 of greater than 200%, an evaporation rate GB / T21655.1 L0 / L5 of greater than 0.3g / h; and a wicking height GB / T21655.1 L0 / L5 of greater than 20cm.

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