A high-gloss composite fabric production method based on double-silk wrapping

Abstract

The application discloses a high-glossiness composite fabric production method based on double-silk wrapping, which wraps two groups of polyamide filaments or light polyester filaments on the outside of core yarn in opposite twisting directions, so that the glossiness of the obtained yarn is improved; more importantly, the opposite wrapping mode helps to keep the glossiness of the yarn at different angles basically consistent, thereby making the obtained fabric present good glossiness at different viewing angles. Meanwhile, the application spins the yarn by wrapping the core yarn with polyamide filaments or light polyester filaments, so that the fabric made of the yarn has higher strength and is not easy to wrinkle, guarantees the appearance flatness and glossiness of the fabric after washing, can bear greater calendering temperature and calendering pressure, and greatly improves the glossiness of the fabric. In addition, the fabric production method adopted by the application can obtain natural plant fiber composite fabric, is environment-friendly, and the fabric production method is simple in process and easy to implement in industrialization.

Description

Technical Field

[0001] This invention belongs to the field of fabric production technology, specifically relating to a method for producing high-gloss composite fabrics based on double-filament wrapping. Background Technology

[0002] Fabric sheen refers to the degree to which the surface of a textile reflects light and the visual effect of this reflection. It is an important fabric characteristic that directly affects the appearance, texture, and perceived quality of clothing or home textile products, as well as their visual appeal when worn. Fabric sheen is significant for improving the visual effect of clothing or home textile products and enhancing the overall style of the finished product.

[0003] Natural plant fibers, primarily cotton and linen, have poor luster, affecting their appearance. Chinese patent CN101736590B provides a processing method to give cotton fabrics a durable luster. This method involves singeing, desizing, and mercerizing the fabric, then immersing it in a resin-containing finishing solution and drying it, followed by calendering. While the fabric in this patent has good luster after finishing, the resin-based wrinkle-free finishing and calendering process smooths the surface fibers, creating a mirror-like reflection. As washing and wear increase, the luster gradually diminishes.

[0004] Chinese patent CN112342667A proposes a high-gloss, water-resistant pure cotton jacquard fabric and its production process. The fabric is water-resistant and high-gloss through processes such as mercerizing cotton yarn, weaving, singeing, desizing, enzyme treatment, dyeing, and finishing. However, the mercerizing and desizing processes use a large amount of alkali and other auxiliaries, which are harmful to the environment.

[0005] Chinese patent CN115891319A discloses a high-gloss, high-stretch textile fiber fabric and its production equipment. This fabric uses a conventional base fabric, adds an elastic fabric layer in the middle to enhance elasticity, and uses a silk fabric as the outer layer to enhance the product's gloss, forming a composite fabric. However, the use of silk fibers significantly increases production costs. Furthermore, the elasticity of the silk fabric and the base fabric is lower than that of the four-way stretch fabric in the middle. After lamination, the silk fabric shrinks and wrinkles, resulting in an uneven surface and ultimately affecting the product's gloss. Therefore, there is a need to develop a composite fabric containing natural plant fibers that combines high gloss with environmental friendliness. Summary of the Invention

[0006] To address the problems existing in the prior art, the present invention provides a method for producing high-gloss composite fabrics based on double-filament wrapping, the resulting fabrics possessing both high gloss and environmentally friendly characteristics.

[0007] This invention provides a method for producing high-gloss composite fabrics based on double-filament wrapping, comprising the following steps:

[0008] Step 1: Twist multiple fiber yarns to obtain core yarn. Use two untwisted nylon or polyester filaments as outer filaments, and wrap them around the outside of the core yarn with opposite twist directions.

[0009] Step 2: Use the yarn prepared in Step 1 to weave a fabric with a satin or small jacquard weave.

[0010] Step 3: The fabric obtained in Step 2 is subjected to sequential operations of spraying, warp stretching, calendering, and heat setting to obtain the final composite fabric.

[0011] Preferably, in step one, the number of outer filaments is 1F to 24F, the fineness is 30D to 150D, and the twist of the outer filaments is set to 1500 twists / m to 2000 twists / m.

[0012] Preferably, in step three, the calendering temperature is 200℃~230℃, the calendering pressure is 10kg~15kg, and the calendering speed is 25m / min~30m / min.

[0013] Preferably, in step one, the process of wrapping the core yarn with outer filaments is as follows: using a mechanical wrapping machine, two strands of outer filaments are wound onto two sets of hollow spindles respectively, and the two sets of hollow spindles are connected in series; after the core yarn is unwound from the yarn bobbin, it passes through the middle of the two sets of hollow spindles in sequence. The unwinding directions of the outer filaments on the two sets of hollow spindles are opposite, and the rotation speeds of the two sets of hollow spindles are the same, so that the outer filaments wrap the core yarn in different directions.

[0014] Preferably, in step two, the fabric weaving process is as follows: the yarn is divided into warp yarn and weft yarn; the warp yarn is wound in strip form on the large roller of the slitting warping machine, and as the large roller moves in parallel, the warp yarn is formed into a warp beam by the slitting warping machine; the warp beam is placed on the rapier loom to pick up the weft yarn and weave the fabric to obtain the fabric.

[0015] As a preferred option, the reed is woven using the flying-through method in step two. To reduce friction between warp yarns during weaving and ensure that the yarn luster is not affected, the number of heddle frames is twice the number of warp structure cycles of the fabric.

[0016] Preferably, the warp yarn fineness is less than or equal to the weft yarn fineness.

[0017] Preferably, in step one, the count of the single fiber yarn is 10-100 count, and the single fiber yarn is one of cotton yarn, cotton-linen yarn, and linen yarn, and the twist coefficient of the single fiber yarn is 250-400.

[0018] Preferably, the warp density of the fabric structure of the fabric obtained in step two is set to 70%–85%, and the weft density is set to 60%–80%.

[0019] Preferably, in step three, the fabric humidity is controlled at 7% to 10% and the warp elongation of the fabric is 5% to 8%.

[0020] Preferably, in step three, during the fabric heat setting process, the temperature is 150℃~180℃, the setting speed is 10m / min~15m / min, and the weft elongation is 1%~3%.

[0021] The beneficial effects of this invention are:

[0022] 1. This invention improves the luster of the yarn by wrapping two strands of nylon filament or bright polyester filament around the outside of the core yarn with opposite twist directions. More importantly, the reverse wrapping method helps to maintain a basically consistent luster of the yarn at different angles, thus enabling the resulting fabric to exhibit good luster from different viewing angles. Furthermore, this invention further enhances the luster of the resulting yarn by setting parameters such as the number of outer filaments, their fineness, and the wrapping twist.

[0023] 2. This invention uses nylon filament or polyester filament to wrap the core yarn during spinning. Fabrics made from this yarn are stronger, less prone to wrinkling, and can ensure a smooth and lustrous appearance after washing. They can also withstand higher calendering temperatures and pressures. This invention can use calendering temperatures of 200℃ to 230℃ and calendering pressures of 10kg to 15kg.

[0024] 3. The fabric production method provided by the present invention can obtain natural plant fiber composite fabrics without using any chemical reagents and dyes, which is environmentally friendly; at the same time, the fabric production method of the present invention has a simple process and is easy to implement industrially. Detailed Implementation

[0025] The present invention will be further described below.

[0026] Example 1

[0027] A method for producing high-gloss composite fabric based on double-filament wrapping includes the following steps:

[0028] Step 1: Spinning Process

[0029] 40-count cotton yarn was selected as the core yarn, with a Z-twist direction and a twist coefficient of 300. The outer filament consisted of two strands of untwisted nylon filaments with a fiber count of 24F and a fineness of 150D. Using a mechanical covering machine, the two strands of untwisted nylon filaments were wound onto two sets of hollow spindles, which were then connected in series. After the core yarn was unwound from the bobbin, it passed between the two sets of hollow spindles. The unwinding directions of the nylon filaments on the two sets of hollow spindles were opposite, and the rotation speeds of the two sets of hollow spindles were the same, ensuring that the nylon filaments were wrapped around the outside of the core yarn with Z and S twist directions, respectively. The twist was set to 1800 twists / m to ensure that the nylon filaments completely wrapped around the core yarn, thereby improving the yarn's luster.

[0030] Since natural plant fibers generally have poor luster, while nylon filaments have excellent luster, wrapping natural plant fiber yarn with nylon filaments can significantly enhance the yarn's luster. At the same time, the cross-wrapping of nylon filaments avoids the problem of high-intensity mirror reflection caused by yarns wrapped in the same direction, achieving a soft, delicate luster effect with subtle color variations.

[0031] Step 2: Fabric Weaving Process

[0032] To further enhance the fabric's luster, an 8-end, 5-fly satin weave was used. Simultaneously, the warp and weft tightness was increased to improve fabric smoothness, with a warp tightness of 85% and a weft tightness of 65%. The number of heald frames for the fly-through reed was 16. Both warp and weft yarns used were those prepared in step one, and the warp yarn fineness was the same as or slightly less than that of the weft yarn.

[0033] Using a slit warping machine, the yarn is wound in strips onto the large roller of the warping machine. As the large roller moves parallel to the ground, the warp yarns are formed into a warp beam by the slit warping machine. Due to the high warp tightness and relatively high warp density of the fabric, a fly-through method is used to thread the reed, with 16 heald frames to improve the loom's efficiency and reduce friction and wear between the warp yarns, thus avoiding any impact on the yarn's luster. The warp beam is then placed on a rapier loom to attach the weft yarn and weave the fabric. A fabric inspection machine is used to inspect the woven fabric, and fabrics that pass the inspection undergo further processing.

[0034] The fabric is moistened with steam or spray to a humidity level of 7%, then mechanically stretched in the warp direction at a tensile rate of 5% to smooth the fabric surface and enhance its luster. The fabric is then calendered using a calendering machine at a temperature of 200℃, a pressure of 12kg, and a speed of 25m / min. Finally, the fabric is placed in a heat-setting machine to fix and shape it, obtaining the final composite fabric. The heat-setting temperature is 150℃, the weft tensile rate is 1%, and the setting speed is 10m / min. Weft stretching improves the fabric's smoothness and enhances its luster.

[0035] Example 2

[0036] In the spinning process, 80-count linen yarn is selected as the core yarn, with an S-twist direction and a twist coefficient of 250. The outer wrapping yarn consists of two untwisted polyester filaments with a fiber count of 24F and a fineness of 65D. The twist of the two nylon filaments wrapping the core yarn is set to 2000 twists / m.

[0037] In the weaving process, the fabric structure adopts a 5-end, 2-fly warp satin weave, with a warp tightness set at 85% and a weft tightness set at 75%. The number of heald frames for the fly-through method is 10. The fabric moisture content is controlled at 5%, and a warp mechanical stretch of 8% is applied. The calendering temperature is 250℃, the calendering pressure is 15kg, and the calendering speed is 30m / min. The heat setting temperature is 150℃, the weft stretch is 3%, and the setting speed is 15m / min.

[0038] Example 3

[0039] In the spinning process, 60-count cotton / linen 50 / 50 yarn is selected as the core yarn, with the core yarn twisted in the Z-twist direction and a twist coefficient of 280. The outer wrapping yarn consists of two strands of untwisted polyester filaments with a fiber count of 8F and a fineness of 45D. The twist of the two strands of nylon filaments wrapping the core yarn is set to 2000 twists / m.

[0040] In the weaving process, the fabric structure adopts a 5-end, 2-fly weft satin weave, with a warp tightness of 85% and a weft tightness of 80%. The number of heald frames for the fly-through method is 10. The fabric moisture content is controlled at 7%, and a warp mechanical stretch of 5% is applied. The calendering temperature is 220℃, the calendering pressure is 13kg, and the calendering speed is 27m / min. The heat setting temperature is 160℃, the weft stretch is 2%, and the setting speed is 14m / min.

[0041] Example 4

[0042] In the spinning process, 10-count cotton yarn is selected as the core yarn, with a Z-twist direction and a twist coefficient of 250. The outer wrapping yarn consists of two untwisted polyester filaments with a fiber count of 24F and a fineness of 150D. The twist of the two nylon filaments wrapping the core yarn is set to 1500 twists / m.

[0043] In the weaving process, the fabric structure adopts a small jacquard weave, with a warp tightness set at 70% and a weft tightness set at 60%. The number of heald frames for the fly-through method is 16. The fabric moisture content is controlled at 10%, and a warp mechanical stretch of 8% is applied. The calendering temperature is 230℃, the calendering pressure is 15kg, and the calendering speed is 30m / min. The heat setting temperature is 180℃, the weft stretch is 1%, and the setting speed is 10m / min.

[0044] The gloss of each fabric in the implementation case was tested using a YG524 fabric gloss tester. Each sample was tested three times, and the results were compared with those of conventional cotton fabric, cotton / nylon 50 / 50, cotton / nylon blended fabric, and silk fabric. The test results are shown in Table 1.

[0045] Table 1. Fabric gloss of different samples

[0046] cotton fabrics 13.21 Cotton / Nylon 50 / 50 28.25 Cotton-nylon interwoven fabric 32.07 silk fabric 57.81 Example 1 52.08 Example 2 51.57 Example 3 54.09 Example 4 53.38

[0047] As can be seen from Table 1, the fabrics of the embodiments of the present invention have good luster, which is only slightly lower than that of silk fabrics and much higher than that of conventional cotton fabrics, cotton / nylon 50 / 50 and cotton / nylon interwoven fabrics.

Claims

1. A method for producing high-gloss composite fabrics based on double-filament wrapping, characterized in that: Includes the following steps: Step 1: Twist multiple fiber yarns to obtain core yarn. Use two untwisted nylon or polyester filaments as outer wrapping filaments and wrap them around the outside of the core yarn with opposite twist directions. The outer wrapping filaments completely wrap the core yarn, and during the wrapping process, the two untwisted outer wrapping filaments wrap around the outside of the core yarn at the same time. In step one, the count of the single fiber yarn is 10-100 English count, and the single fiber yarn is one of cotton yarn, cotton-linen yarn, and linen yarn. The twist coefficient of the single fiber yarn is 250-400. In step one, the number of outer filaments is 1F~24F, the fineness is 30D~150D, and the wrapping twist of the outer filaments is set to 1500 twists / m~2000 twists / m; Step 2: Use the yarn prepared in Step 1 to weave and obtain a fabric with a satin or small jacquard weave. Step 3: The fabric obtained in Step 2 is subjected to sequential operations of spraying, warp stretching, calendering and heat setting to obtain the final composite fabric; In step three, the calendering temperature is 200℃~230℃, the calendering pressure is 10kg~15kg, and the calendering speed is 25m / min~30m / min.

2. The method for producing a high-gloss composite fabric based on double-filament wrapping according to claim 1, characterized in that: In step one, the process of wrapping the core yarn with outer filaments is as follows: using a mechanical wrapping machine, two strands of outer filaments are wound onto two sets of hollow spindles respectively, and the two sets of hollow spindles are connected in series; after the core yarn is unwound from the yarn bobbin, it passes through the middle of the two sets of hollow spindles in sequence. The unwinding directions of the outer filaments on the two sets of hollow spindles are opposite, and the rotation speeds of the two sets of hollow spindles are the same, so that the outer filaments wrap the core yarn in different directions.

3. The method for producing high-gloss composite fabric based on double-filament wrapping according to claim 1, characterized in that: In step two, the fabric weaving process is as follows: the yarn is divided into warp yarn and weft yarn; the fineness of the warp yarn is less than or equal to the fineness of the weft yarn; the warp yarn is wound in strips on the large roller of the slitting warping machine, and as the large roller moves in parallel, the warp yarn is formed into a warp beam by the slitting warping machine; the warp beam is placed on the rapier loom to pick up the weft yarn and weave the fabric to obtain the fabric.

4. The method for producing a high-gloss composite fabric based on double-filament wrapping according to claim 3, characterized in that: In step two, the reed is threaded using the flying-through method for weaving; the number of heald frames is twice the number of warp weave cycles of the fabric.

5. The method for producing a high-gloss composite fabric based on double-filament wrapping according to claim 1, characterized in that: In step two, the warp density of the fabric structure is set to 70%~85%, and the weft density is set to 60%~80%.

6. The method for producing a high-gloss composite fabric based on double-filament wrapping according to claim 1, characterized in that: In step three, the fabric humidity is controlled at 7% to 10%; the warp elongation of the fabric is 5% to 8%.

7. The method for producing a high-gloss composite fabric based on double-filament wrapping according to claim 1, characterized in that: In step three, during the fabric heat setting process, the temperature is 150℃~180℃, the setting speed is 10m / min~15m / min, and the weft elongation is 1%~3%.