Double-warp-beam towel bottom four-side elastic jean fabric and manufacturing process thereof

Abstract

The invention relates to the technical field of jean fabrics, in particular to a double-warp-beam towel bottom four-side elastic jean fabric which is formed by interweaving warp yarns and weft yarns, the minimum texture cycle is formed by interweaving eight columns of warp yarns and eight rows of weft yarns, the warp yarns comprise surface warp yarns and bottom warp yarns, and the surface warp yarns and the bottom warp yarns are alternately arranged according to the proportion of 1: 1 from left to right. The surface warp yarns and the weft yarns are interwoven to form a surface layer of the fabric, the bottom warp yarns and the weft yarns are interwoven to form a bottom layer of the fabric, the surface warp yarns adopt cotton yarns, and the bottom warp yarns adopt chemical fiber yarns; the weft yarns comprise first weft yarns and second weft yarns, the first weft yarns and the second weft yarns are alternately arranged according to the proportion of 1: 1 in the direction from top to bottom, aerogel yarns are adopted as the first weft yarns, and wool fiber and triacetate fiber blended yarns are adopted as the second weft yarns. The surface warp yarns and the bottom warp yarns are respectively interwoven with the weft yarns, so that the fabric has elasticity and resilience in the warp and weft directions, the heat retention property and the wrinkle resistance of the fabric are improved, and the fabric is more comfortable to wear.

Description

Technical Field

[0001] The invention relates to the technical field of denim fabrics, in particular to a double-warp-beam towel-bottom four-way stretch denim fabric and a manufacturing process thereof. Background Art

[0002] Traditional terry-bottom denim fabrics are mostly made of pure cotton or cotton blended yarns, which are almost inelastic, with low breaking strength and elongation. This lacks sufficient room for movement during large movements, such as bending, squatting, or running, resulting in a feeling of tightness and restraint, reducing comfort. Furthermore, terry-bottom denim fabrics are prone to wrinkling after being squeezed or folded, and are difficult to self-recover, affecting their aesthetics. Furthermore, the relatively simple fabric structure of traditional terry-bottom denim fabrics, typically consisting of only a single layer of warp and weft yarns, makes them ineffective in blocking cold air intrusion and poorly retaining heat, resulting in poor warmth retention. Therefore, improvements to existing technologies are necessary to address these issues. Summary of the Invention

[0003] The purpose of the present invention is to provide a double-warp-beam four-way stretch denim fabric for towel bottoms and a manufacturing process thereof, aiming to solve the problems of poor elasticity, easy wrinkling and poor warmth retention of traditional towel bottom denim fabrics in the prior art.

[0004] In order to achieve the above-mentioned object, the present invention provides a double-warp-beam towel-bottom four-way stretch denim fabric, which is formed by interweaving warp yarns and weft yarns, and the minimum weave cycle is formed by interweaving eight columns of warp yarns and eight rows of weft yarns. The warp yarns include face warp yarns and bottom warp yarns. From left to right, the face warp yarns and the bottom warp yarns are alternately arranged in a ratio of 1:1. The face warp yarns and the weft yarns are interwoven to form the surface layer of the fabric, and the bottom warp yarns and the weft yarns are interwoven to form the bottom layer of the fabric. The face warp yarns are cotton yarns, and the bottom warp yarns are chemical fiber yarns.

[0005] The weft yarns include a first weft yarn and a second weft yarn. From top to bottom, the first weft yarn and the second weft yarn are alternately arranged in a ratio of 1:1. The first weft yarn is made of aerogel yarn, and the second weft yarn is made of a blended yarn of wool fiber and triacetate fiber.

[0006] Furthermore, each surface warp yarn is provided with six warp weaving points and two weft weaving points, the six warp weaving points are arranged continuously, and the number of weft yarns spaced between the same weaving points on adjacent surface warp yarns is two.

[0007] Furthermore, each bottom warp yarn is provided with four warp weaving points and four weft weaving points, and each bottom warp yarn is sequentially provided with one weft weaving point, one warp weaving point, one weft weaving point, one warp weaving point, one weft weaving point, two warp weaving points and one weft weaving point, and the number of weft yarns between the same weaving points on adjacent bottom warp yarns is two.

[0008] Furthermore, the yarn count of the surface warp yarn is 8S-12S, the yarn count of the bottom warp yarn is 18S-22S, the yarn count of the first weft yarn is 30S-40S, and the yarn count of the second weft yarn is 14S-18S.

[0009] Furthermore, in the chemical fiber yarn of the bottom warp yarn, the chemical fiber is one of polyester or nylon.

[0010] Furthermore, in the wool fiber and triacetate fiber blended yarn of the second weft yarn, the wool fiber content is 20%-35%, and the triacetate content is 65%-80%.

[0011] In order to achieve the above-mentioned purpose, the present invention also provides a manufacturing process for producing the above-mentioned double-warp-beam towel bottom four-way stretch denim fabric, which comprises the following steps: pretreatment → double-warp-beam warping → dyeing → sizing → drawing-in → weaving → finishing;

[0012] In the pretreatment process, the surface warp yarn is pre-drawn, with a hairiness index of ≤5.0; the bottom warp yarn is heat-set at 180°C for 30 seconds, with a heat shrinkage of ≤1.5%; the first weft yarn is hydrophobicized with a silane coupling agent; the second weft yarn is shrink-proofed with liquid ammonia, with a wool shrinkage of ≤3%;

[0013] During the dyeing process, the surface warp yarns are dyed, while the bottom warp yarns are not dyed.

[0014] Furthermore, a double warp beam system is adopted in which the warp beam of the face warp yarn is the bottom beam and the warp beam of the bottom warp yarn is the sky beam. During the double warp beam warping process, the face warp yarn is warped on the bottom beam, the tension is 80cN / root-100cN / root, and the winding density is 0.48g / cm 3 -0.52g / cm 3 The bottom warp yarn is warped on the beam with a tension of 60cN / thread to 80cN / thread and a winding density of 0.50g / cm 3 -0.55g / cm 3 .

[0015] Furthermore, during the sizing process, the surface warp yarns use starch and acrylic sizing, the sizing tank temperature is 80℃-85℃, and the sizing rate is 8%-10%; the bottom warp yarns use modified starch and PVA mixed sizing, the sizing tank temperature is 90℃-95℃, and the sizing rate is 10%-12%.

[0016] Furthermore, in the post-finishing process, a softening treatment is first performed, with the silicone oil concentration in the softening liquid being 5g / L-20g / L, the water temperature being 40°C-50°C, and the time being 10min-15min; then, the rubber blanket and the wool blanket are pre-shrunk, with the pre-shrinkage speed being 40m / min-50m / min, the rubber blanket cylinder steam pressure being 0.2MPa-0.4MPa, and the wool blanket cylinder steam pressure being 0.3MPa-0.7MPa.

[0017] The present invention provides a double-warp-beam towel-bottom four-way stretch denim fabric. Compared with the existing technology, this double-warp-beam towel-bottom four-way stretch denim fabric uses face warp yarns and bottom warp yarns to be interwoven with weft yarns respectively. The cotton yarns of the face warp yarns give the fabric surface a denim style and basic strength, and the chemical fiber yarns of the bottom warp yarns provide the fabric with elasticity and recovery in the warp direction. The wool fiber and triacetate blended yarn of the second weft yarn combines the high elasticity of the wool fiber with the flexibility of the triacetate fiber, so that the fabric can better rebound after being subjected to force in the weft direction, thereby solving the problem of poor elasticity of traditional towel-bottom denim fabrics; secondly, through the alternating use of aerogel yarns of the first weft yarns and wool fiber and triacetate blended yarns of the second weft yarns, the aerogel yarns improve the warmth retention of the fabric, and the wool fiber and triacetate blended yarns make the fabric have better moisture absorption and wrinkle resistance, thereby improving the overall warmth retention effect of the fabric, not prone to wrinkles, and more comfortable to wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the minimum circulation organization of the present invention.

[0019] Description of reference numerals:

[0020] 11. Surface warp yarn; 12. Bottom warp yarn; 13. Warp weave point; 21. First weft yarn; 22. Second weft yarn; 23. Weft weave point. DETAILED DESCRIPTION

[0021] The present invention is described in detail below with reference to specific embodiments.

[0022] In the present invention, unless otherwise expressly specified and limited, when terms such as "set on", "connected", and "connected" appear, these terms should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrally connected; they can be directly connected or connected through one or more intermediate media. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The directional words that appear in the present invention are to better illustrate the characteristics of the features and the relationship between the features. It should be understood that when the placement direction of the present invention changes, the characteristics of the features and the direction of the relationship between the features also change accordingly. Therefore, the directional words do not constitute an absolute limitation on the characteristics of the features and the relationship between the features in space, but only play a relative limitation role.

[0023] The present invention provides a double-warp-beam towel bottom four-way stretch denim fabric, such as Figure 1 As shown, it is interwoven by warp yarns and weft yarns, and the minimum weave cycle is interwoven by eight columns of warp yarns and eight rows of weft yarns. The warp yarns include face warp yarns 11 and bottom warp yarns 12. From left to right, the face warp yarns 11 and the bottom warp yarns 12 are alternately arranged in a 1:1 ratio. The face warp yarns 11 and the weft yarns are interwoven to form the face layer of the fabric, and the bottom warp yarns 12 and the weft yarns are interwoven to form the bottom layer of the fabric. The face warp yarns 11 are made of cotton yarns, and the bottom warp yarns 12 are made of chemical fiber yarns.

[0024] The weft yarns include a first weft yarn 21 and a second weft yarn 22. From top to bottom, the first weft yarn 21 and the second weft yarn 22 are alternately arranged in a ratio of 1:1. The first weft yarn 21 is aerogel yarn, and the second weft yarn 22 is a blended yarn of wool fiber and triacetate fiber.

[0025] Based on the above-mentioned structural setting, this double-warp-beam towel-bottom four-sided stretch denim fabric adopts the surface warp yarn 11 and the bottom warp yarn 12 to be interwoven with the weft yarn respectively. The cotton yarn of the surface warp yarn 11 gives the surface of the fabric a denim style and basic strength, and the chemical fiber yarn of the bottom warp yarn 12 provides the fabric with elasticity and recovery in the warp direction. The wool fiber and triacetate blended yarn of the second weft yarn 22 combines the high elasticity of the wool fiber with the flexibility of the triacetate fiber, so that the fabric can better rebound after being subjected to force in the weft direction, thereby solving the problem of poor elasticity of the traditional towel-bottom denim fabric; secondly, through the alternating use of the aerogel yarn of the first weft yarn 21 and the wool fiber and triacetate blended yarn of the second weft yarn 22, the aerogel yarn improves the warmth retention of the fabric, and the wool fiber and triacetate blended yarn makes the fabric have better moisture absorption and wrinkle resistance, thereby improving the overall warmth retention effect of the fabric and not prone to wrinkles, making it more comfortable to wear.

[0026] In this embodiment, each face warp yarn 11 is provided with six warp weave points 13 and two weft weave points 23. The six warp weave points 13 are arranged continuously, and the number of weft yarns between the same weave points on adjacent face warp yarns 11 is two. The face warp yarns 11 and weft yarns are interwoven to form a right-hand twill weave structure, which gives the fabric a clearer surface texture and enhances its appearance and texture.

[0027] In this embodiment, each base warp yarn 12 is provided with four warp stitch points 13 and four weft stitch points 23. Each base warp yarn 12 is sequentially arranged with one weft stitch point 23, one warp stitch point 13, one weft stitch point 23, one warp stitch point 13, one weft stitch point 23, two warp stitch points 13, and one weft stitch point 23. The number of weft yarns separating the same stitch points on adjacent base warp yarns 12 is two. The base warp yarns 12 and weft yarns are interwoven to form a towel-like bottom weave structure, achieving a towel-like bottom feel. Furthermore, by increasing the density of interweaving points between the base warp yarns 12 and the weft yarns, the yarns are more tightly bonded, reducing the friction area of ​​the fabric and thus improving wear resistance.

[0028] In this embodiment, the yarn count of the face warp yarn 11 is 8S-12S, more preferably, the yarn count of the face warp yarn 11 is 10S; the yarn count of the bottom warp yarn 12 is 18S-22S, more preferably, the yarn count of the bottom warp yarn 12 is 20S; the yarn count of the first weft yarn 21 is 30S-40S, more preferably, the yarn count of the first weft yarn 21 is 35S; the yarn count of the second weft yarn 22 is 14S-18S, more preferably, the yarn count of the second weft yarn 22 is 16S. The above yarn counts make the denim fabric more comfortable to wear.

[0029] In this embodiment, the chemical fiber yarns of the bottom warp yarns 12 are polyester or nylon. More preferably, the chemical fiber is polyester to improve the elasticity and strength of the bottom warp yarns 12 .

[0030] In this embodiment, the wool fiber and triacetate blended yarn of the second weft yarn 22 has a wool fiber content of 20%-35%, more preferably, the wool fiber content is 30%, and the triacetate content is 65%-80%, more preferably, the triacetate content is 70%, so as to balance the elasticity, warmth retention and wrinkle resistance of the yarn.

[0031] The present invention also provides a manufacturing process for producing the above-mentioned double-warp-beam towel bottom four-way stretch denim fabric, which comprises the following steps: pretreatment → double-warp-beam warping → dyeing → sizing → drawing-in → weaving → finishing;

[0032] In the pretreatment process, the surface warp yarn 11 is pre-drawn, and the hairiness index is ≤5.0; the bottom warp yarn 12 is heat-set at 180°C for 30 seconds, and the heat shrinkage rate is ≤1.5%; the first weft yarn 21 is hydrophobicized by a silane coupling agent; the second weft yarn 22 is shrink-proofed by liquid ammonia, and the wool shrinkage rate is ≤3%;

[0033] During the dyeing process, the surface warp yarns 11 are dyed, and the bottom warp yarns 12 are not dyed.

[0034] In this embodiment, a double warp beam system is adopted in which the warp beam of the face warp yarn 11 is the bottom beam and the warp beam of the bottom warp yarn 12 is the top beam. In the double warp beam warping process, the face warp yarn 11 is warped on the bottom beam, and the tension is 80 cN / strand to 100 cN / strand. More preferably, the tension is 90 cN / strand, and the winding density is 0.48 g / cm 3 -0.52g / cm 3 , further preferably, the winding density is 0.50g / cm 3 The bottom warp yarn 12 is warped on the day axis, with a tension of 60cN / root-80cN / root, and further preferably, a tension of 70cN / root, and a winding density of 0.50g / cm 3 -0.55g / cm 3 , further preferably, the winding density is 0.53g / cm 3 By controlling the tension difference between the bottom warp yarn 12 and the surface warp yarn 11, the elastic deformation of the bottom layer and the surface layer is ensured during weaving, thereby improving the functional stability of the fabric.

[0035] In this embodiment, during the sizing process, the face warp yarn 11 is sizing with starch and acrylic acid, the sizing tank temperature is 80°C-85°C, more preferably, the sizing tank temperature is 85°C, and the sizing rate is 8%-10%, more preferably, the sizing rate is 10%; the bottom warp yarn 12 is sizing with a mixture of modified starch and PVA, the sizing tank temperature is 90°C-95°C, more preferably, the sizing tank temperature is 95°C, and the sizing rate is 10%-12%, more preferably, the sizing rate is 12%. Through the above process settings, the yarn strength and wear resistance can be improved, and the weaving breakage rate can be reduced.

[0036] In this embodiment, during the post-finishing process, a softening treatment is first performed, wherein the silicone oil concentration in the softening liquid is 5g / L-20g / L, more preferably, the silicone oil concentration is 10g / L, the water temperature is 40°C-50°C, more preferably, the water temperature is 45°C, the time is 10min-15min, more preferably, the time is 12min; then, the rubber blanket and the wool blanket are pre-shrinked, the pre-shrinking speed is 40m / min-50m / min, more preferably, the pre-shrinking speed is 45m / min, the rubber blanket cylinder steam pressure is 0.2MPa-0.4MPa, more preferably, the rubber blanket cylinder steam pressure is 0.3MPa, and the wool blanket cylinder steam pressure is 0.3MPa-0.7MPa, more preferably, the wool blanket cylinder steam pressure is 0.5MPa. Through the softening and pre-shrinking treatments, the size of the fabric is stabilized and the softness of the fabric is improved.

[0037] In summary, the double-warp-beam terry-bottom four-way stretch denim fabric and its manufacturing process can solve the problems of poor elasticity, easy wrinkling and poor warmth retention of traditional terry-bottom denim fabric in the prior art.

[0038] In the absence of conflict, the above embodiments and features therein may be combined with each other.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A double-warp-beam four-way stretch denim fabric with a towel base, characterized by: The fabric is formed by interweaving warp yarns and weft yarns, wherein the minimum weave cycle is formed by interweaving eight columns of warp yarns and eight rows of weft yarns, wherein the warp yarns include face warp yarns (11) and bottom warp yarns (12), and from left to right, the face warp yarns (11) and the bottom warp yarns (12) are alternately arranged in a ratio of 1:1, the face warp yarns (11) and the weft yarns are interwoven to form the face layer of the fabric, and the bottom warp yarns (12) and the weft yarns are interwoven to form the bottom layer of the fabric, the face warp yarns (11) are made of cotton yarn, and the bottom warp yarns (12) are made of chemical fiber yarn; The weft yarns include a first weft yarn (21) and a second weft yarn (22). From top to bottom, the first weft yarn (21) and the second weft yarn (22) are alternately arranged in a ratio of 1:

1. The first weft yarn (21) is aerogel yarn, and the second weft yarn (22) is a blended yarn of wool fiber and triacetate fiber.

2. The double-warp-beam four-way stretch denim fabric for towel bottom according to claim 1, characterized in that: Each surface warp yarn (11) is provided with six warp weaving points (13) and two weft weaving points (23), the six warp weaving points (13) are arranged continuously, and the number of weft yarns spaced between the same weaving points on adjacent surface warp yarns (11) is two.

3. The double-warp-beam four-way stretch denim fabric for towel bottom according to claim 2, characterized in that: Each base warp yarn (12) is provided with four warp weaving points (13) and four weft weaving points (23), and each base warp yarn (12) is sequentially provided with one weft weaving point (23), one warp weaving point (13), one weft weaving point (23), one warp weaving point (13), one weft weaving point (23), two warp weaving points (13) and one weft weaving point (23), and the number of weft yarns spaced between the same weaving points on adjacent base warp yarns (12) is two.

4. The double-warp-beam four-way stretch denim fabric for towel bottoms according to claim 1, characterized in that: The yarn count of the surface warp yarn (11) is 8S-12S, the yarn count of the bottom warp yarn (12) is 18S-22S, the yarn count of the first weft yarn (21) is 30S-40S, and the yarn count of the second weft yarn (22) is 14S-18S.

5. The double-warp-beam four-way stretch denim fabric for towel bottom according to claim 1, characterized in that: In the chemical fiber yarn of the bottom warp yarn (12), the chemical fiber is one of polyester or nylon.

6. The double-warp-beam four-way stretch denim fabric for towel bottoms according to claim 1, characterized in that: The wool fiber and triacetate fiber blended yarn of the second weft yarn (22) has a wool fiber content of 20%-35% and a triacetate fiber content of 65%-80%.

7. A manufacturing process for a double-warp-beam towel-bottom four-way stretch denim fabric, characterized in that: Used to produce the double-warp-beam towel-bottom four-way stretch denim fabric according to any one of claims 1 to 6, the manufacturing process comprises the following steps: pretreatment → double-warp-beam warping → dyeing → sizing → drawing-in → weaving → finishing; In the pretreatment process, the surface warp yarn (11) is subjected to a pre-drawing treatment, and the hairiness index is ≤5.0; the bottom warp yarn (12) is subjected to a heat setting treatment at 180°C for 30 seconds, and the heat shrinkage rate is ≤1.5%; the first weft yarn (21) is subjected to a hydrophobic treatment with a silane coupling agent; the second weft yarn (22) is subjected to a liquid ammonia shrinkage prevention treatment, and the wool shrinkage rate is ≤3%; During the dyeing process, the surface warp yarn (11) is dyed, and the bottom warp yarn (12) is not dyed.

8. The manufacturing process of the double-warp-beam towel-bottom four-way stretch denim fabric according to claim 7, characterized in that: A double warp beam system is adopted in which the warp beam of the face warp yarn (11) is the bottom beam and the warp beam of the bottom warp yarn (12) is the sky beam. In the double warp beam warping process, the face warp yarn (11) is warped on the bottom beam, the tension is 80 cN / root-100 cN / root, and the winding density is 0.48 g / cm 3 -0.52g / cm 3 The bottom warp yarn (12) is warped on the day axis with a tension of 60cN / root-80cN / root and a winding density of 0.50g / cm 3 -0.55g / cm 3 .

9. The manufacturing process of the double-warp-beam towel-bottom four-way stretch denim fabric according to claim 7, characterized in that: During the sizing process, the surface warp yarn (11) adopts starch and acrylic acid sizing, the sizing tank temperature is 80℃-85℃, and the sizing rate is 8%-10%; the bottom warp yarn (12) adopts modified starch and PVA mixed sizing, the sizing tank temperature is 90℃-95℃, and the sizing rate is 10%-12%.

10. The manufacturing process of the double-warp-beam towel-bottom four-way stretch denim fabric according to claim 7, characterized in that: During the finishing process, softening treatment is first carried out, with the silicone oil concentration in the softening liquid being 5g / L-20g / L, the water temperature being 40℃-50℃, and the time being 10min-15min; then, the rubber blanket and the wool blanket are pre-shrunk, with the pre-shrinkage speed being 40m / min-50m / min, the rubber blanket cylinder steam pressure being 0.2MPa-0.4MPa, and the wool blanket cylinder steam pressure being 0.3MPa-0.7MPa.

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