A double-core yarn structure four-way stretch wear-resistant and breathable shirt and a fabric preparation method thereof

Abstract

This invention discloses a four-way stretch, abrasion-resistant, and breathable shirt with a double-core yarn structure and its fabric preparation method. The four-way stretch, abrasion-resistant, and breathable shirt fabric is woven from double-core composite core-spun yarn. The double-core composite core-spun yarn includes, from the inside out, an inner core filament, a middle reinforcing layer, and a skin-friendly outer sheath. The inner core filament is composed of spandex filament with high elastic elongation characteristics and T400 high-elasticity filament with high elastic recovery characteristics arranged side by side. The middle reinforcing layer is formed by winding and covering the inner core filament with T400 high-elasticity filament in the circumferential direction. The skin-friendly outer sheath is made of cellulose fiber, which covers the middle reinforcing layer to prevent the inner core filament from being exposed due to friction during use. The single filament fineness of the spandex filament is 20D-40D, the single filament fineness of the T400 high-elasticity filament is 50D-75D, and the linear density of the cellulose fiber is 1.2D-1.5D. This invention solves the problems of poor elastic recovery, easy arching and deformation, insufficient abrasion resistance, strong wearing restriction, and poor breathability of existing elastic shirt fabrics.

Description

Technical Field

[0001] This invention relates to the field of textile and apparel technology, specifically to a two-core yarn structure four-way stretch abrasion-resistant and breathable shirt and its fabric preparation method. Background Technology

[0002] Most elastic shirt fabrics on the market are woven from cotton / polyester fibers and spandex single-core yarns, with spandex providing basic elasticity to meet the needs of movement during wear. While these fabrics possess a certain degree of elasticity and stretch, they generally suffer from the following drawbacks: 1. Poor elastic recovery and easy to arch and deform: The elastic recovery rate of single spandex core-spun yarn is usually only about 60%, the warp elastic elongation is only 5%-8%, and the weft elastic elongation is 15%-25%. After repeated stretching during wearing, residual deformation is easy to occur, causing the shirt to arch and bulge at the elbows, armpits, waist and other parts, and the shape will be out of shape, which seriously affects the appearance and wearing experience.

[0003] 2. Insufficient abrasion resistance: The core yarn of single-spun core yarn is only spandex, and the outer fiber provides limited protection for the core yarn. After long-term friction, the core yarn is prone to breakage, the fabric will pill and fuzz, reducing the service life of the garment.

[0004] 3. Limited elasticity and strong feeling of restriction when wearing: Traditional elastic fabrics are mostly two-way elastic or have insufficient elastic elongation, which cannot achieve 360° free stretching. There is a noticeable feeling of restriction when making large movements such as raising arms and bending over, which cannot meet the comfort needs of daily and work scenarios.

[0005] 4. Poor breathability: Some high-elastic fabrics use high-density weaving processes to improve elasticity, which reduces the breathability of the fabric, making it stuffy and hot to wear, and easily generating static electricity and a sticky feeling.

[0006] Currently, no composite yarn structure exists that simultaneously achieves high elasticity, high resilience, high abrasion resistance, and breathable comfort in shirt fabrics and related products. Existing solutions cannot address these technical challenges simultaneously. To solve these problems, this invention provides a method for preparing a latent thermosetting adhesive and its application, enabling the thermosetting adhesive to remain inert at room temperature and achieve high-strength bonding through heating activation. Summary of the Invention

[0007] This invention provides a double-core yarn structure four-way stretch abrasion-resistant and breathable shirt and its fabric preparation method, which solves the problems of poor elasticity recovery, easy arching and deformation, insufficient abrasion resistance, strong wearing restriction, and poor breathability of existing elastic shirt fabrics. It achieves a 360° high elasticity and free stretching of the shirt fabric, which is not easily deformed after stretching, abrasion-resistant and durable, and breathable and comfortable to wear.

[0008] The present invention is implemented as follows: a four-way stretch abrasion-resistant and breathable shirt fabric with a double core yarn structure, wherein the four-way stretch abrasion-resistant and breathable shirt fabric is woven from a double core composite core-spun yarn, wherein the double core composite core-spun yarn comprises, from the inside to the outside, an inner core yarn, a middle reinforcing layer and a skin-friendly outer layer. The aforementioned inner core yarn is composed of spandex yarn with high elastic elongation characteristics and T400 high elastic yarn with high elastic recovery characteristics arranged side by side; The aforementioned intermediate reinforcing layer is made by winding T400 high-elastic yarn around and covering the inner core yarn in the circumferential direction; the aforementioned skin-friendly outer layer is cellulose fiber, which covers the aforementioned intermediate reinforcing layer to prevent the inner core yarn from being exposed due to friction during use.

[0009] As one embodiment of the present invention, the monofilament fineness of the spandex yarn is 20D-40D, the monofilament fineness of the T400 high-elastic yarn is 50D-75D, and the linear density of the cellulose fiber is 1.2D-1.5D.

[0010] As one embodiment of the present invention, the total count of the above-mentioned double-core composite core-spun yarn is 40S-60S. In the above-mentioned double-core composite core-spun yarn, the proportion of spandex yarn is 5%-8%, the proportion of T400 high-elastic yarn is 10%-15%, and the proportion of cellulose fiber is 77%-85% by mass percentage.

[0011] This invention also relates to a method for preparing a two-core yarn structure four-way stretch abrasion-resistant and breathable shirt fabric, comprising the following steps: S1. Material preparation: Prepare materials according to the following weight parts: 5-8 parts of spandex yarn, 10-15 parts of T400 high-elastic yarn, T400 high-elastic yarn is divided into two strands, the first strand is equal in weight to the spandex yarn, and the remainder is the second strand, which wraps the inner core yarn, and 77-85 parts of cellulose fiber. S2: Preparation of inner core yarn: A spandex yarn that provides high elongation elasticity and a T400 high elastic yarn that provides high recovery elasticity are unwound from two independent yarn bobbins in parallel with each other, and then fed in synchronously after being combined by a yarn guide. S3: Intermediate Reinforcing Layer Coating: On a hollow ingot coating machine, another T400 high-elasticity wire is wound in the same or opposite direction around the outer periphery of the above-mentioned inner core wire with a helix angle of 30°-55° and a coating twist of 600-1200 twists / meter to form an intermediate reinforcing core wire. S4: Outer short fiber coating into yarn: On a hollow spindle fancy twisting machine, the intermediate reinforcing core filament obtained in step S3 is passed through the center of the hollow spindle; at the same time, cellulose fibers are uniformly wrapped around the outside of the above-mentioned intermediate reinforcing core filament with a helix angle of 15°-40° to form a skin-friendly outer coating layer, and a double-core composite core-spun yarn is obtained. S5. Fabric weaving: The fabric is woven using a machine weaving process, with plain or twill weave. The double-core composite core-spun yarns prepared above are used as both the warp and weft systems. They are interwoven on the loom according to the preset warp and weft density to form a fabric with bidirectional elasticity. S6. Fabric finishing: The greige fabric obtained from the above weaving process is subjected to pre-shrinking, singeing, heat setting, and antistatic finishing processes in sequence to obtain the finished four-way stretch wear-resistant and breathable shirt fabric.

[0012] In one embodiment of the present invention, in step S5 above, the warp density of the woven fabric is 120-160 threads / inch, the weft density is 80-120 threads / inch, and the weight is 120-180 g / m². 2 .

[0013] As an embodiment of the present invention, in step S6 above, the pre-shrinking treatment includes: placing the woven fabric in a tension-free continuous loose pre-shrinking machine, controlling the fabric to pass through the spray humidification zone at a linear speed of 18-22 meters / minute, achieving an overall moisture regain of 13%-14%, then entering a saturated steam box, treating it in a saturated steam environment at 108℃±2℃ for 70-80 seconds, then placing the fabric in a rubber blanket mechanical pre-shrinking zone, and drying and shaping it without tension at 90℃ in the drying zone at a temperature of 95℃±5℃ and a preset pressure.

[0014] As an embodiment of the present invention, in step S6 above, the singeing process includes: introducing the pre-shrunken fabric into a gas singeing machine for singeing, controlling the fabric to pass through a flame at a temperature of 1100℃±50℃ at a speed of 100-110 meters / minute, and after the singeing is completed, the fabric is immediately cooled by a built-in cold water roller to remove surface fuzz and obtain a smooth fabric surface.

[0015] In one embodiment of the present invention, in step S6 above, the temperature of the heat setting treatment is 160°C-180°C, and the residual elongation of the fabric is ≤4%.

[0016] As an embodiment of the present invention, in step S6 above, the antistatic finishing includes: impregnating the heat-set fabric at room temperature with a durable polyether ester antistatic agent and a hydrophilic amino silicone oil softener, controlling the impregnation rate to be 70-80%, and sending the impregnated fabric into a hot air stretching dryer to dry and fix it at 125℃±5℃ for 2 minutes.

[0017] As one embodiment of the present invention, the above-mentioned four-way stretch abrasion-resistant and breathable shirt fabric has a warp elastic elongation of 15%-20% and a weft elastic elongation of 30%-40%.

[0018] The beneficial effects of this invention are: 1. The double-core yarn structure four-way stretch wear-resistant and breathable shirt fabric obtained by this invention has an elastic recovery rate of ≥85% and a residual elongation rate of ≤4%. After long-term wear and repeated stretching, there is no obvious residual deformation. The elbows, armpits and other parts are not prone to arching and bulging. The shape is durable and crisp. It achieves high elastic elongation in both warp and weft directions. It can stretch freely with human body movements. There is no sense of restriction when raising arms, bending over and other large movements, and the wearing experience is more comfortable. 2. The dual-core structure of this invention, combined with the outer short fiber coating, significantly improves the abrasion resistance of the fabric, making the core yarn less prone to breakage, the fabric less prone to pilling, and extending the service life of the garment by more than 100%. 3. The short cellulose fibers on the outer layer of the fabric of this invention ensure the fabric's moisture absorption and breathability. Combined with a reasonable weaving density, it is not stuffy or sticky to wear, and also has good skin-friendliness. 5. This invention imparts excellent antistatic properties to the fabric through post-processing, making it less prone to dust accumulation. At the same time, the fabric exhibits good dimensional stability, is less prone to shrinkage, and is easier to care for. Attached Figure Description

[0019] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention, making other features, objects, and characteristics of the invention more apparent. The illustrative embodiments of the invention, along with their descriptions, are used to explain the invention and do not constitute an undue limitation of the invention.

[0020] Figure 1 This is a parameter comparison diagram between Embodiment 1 and the comparative example of the present invention; Figure 2 This is a bar chart comparing Embodiment 1 and the comparative example of the present invention; Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0022] This invention provides a four-way stretch, wear-resistant and breathable shirt fabric with a double-core yarn structure. The four-way stretch, wear-resistant and breathable shirt fabric is woven from double-core composite core-spun yarn. The double-core composite core-spun yarn includes, from the inside out, an inner core yarn, a middle reinforcing layer and a skin-friendly outer layer. The inner core yarn is composed of spandex yarn with high elastic elongation properties and T400 high elastic yarn with high elastic recovery properties arranged side by side; The intermediate reinforcing layer is made of T400 high-elastic yarn wound and wrapped around the inner core yarn in the circumferential direction; the skin-friendly outer layer is made of cellulose fiber, which covers the intermediate reinforcing layer to prevent the inner core yarn from being exposed due to friction during use. The single filament fineness of spandex yarn is 20D-40D, the single filament fineness of T400 high-elastic yarn is 50D-75D, and the linear density of cellulose fiber is 1.2D-1.5D. The total count of the double-core composite core-spun yarn is 40S-60S. In the double-core composite core-spun yarn, by weight percentage, spandex yarn accounts for 5%-8%, T400 high-elastic yarn accounts for 10%-15%, and cellulose fiber accounts for 77%-85%.

[0023] Example 1: The preparation method of this double-core yarn structure four-way stretch abrasion-resistant and breathable shirt fabric includes the following steps: S1 Material Preparation: Spandex yarn: 40D single filament fineness, prepare 5 parts by weight.

[0024] T400 high-elastic yarn: 50D single filament fineness, prepare 15 parts by weight, two yarns in total, the first yarn is 5 parts by weight equal to spandex yarn, and the second yarn is 10 parts by weight.

[0025] Cellulose fiber: Select long-staple cotton with a fiber linear density of 1.33D, and prepare 80 parts by weight.

[0026] S2. Preparation of inner core yarn: A 40D spandex yarn and a 50D T400 high-elastic yarn are unwound from two yarn bobbins respectively, and then paralleled together by a yarn guide. They are then fed into the subsequent coating equipment in a twist-free manner to ensure that the two fibers are smooth to each other, thus obtaining the inner core yarn.

[0027] S3. Intermediate Reinforcing Layer Coating: The obtained inner core wire is fed into a hollow spindle coating machine, and another 50D T400 high-elasticity wire is wrapped around the core wire in a reverse spiral manner. The process parameters are set as follows: spiral angle 45°, coating twist 900 twists / meter, spindle speed 15000 rpm, and draw ratio controlled at 2.0, forming an intermediate reinforcing core wire.

[0028] S4. Outer short fiber coating yarn: The prepared intermediate reinforcing core yarn is fed into a hollow spindle fancy twisting machine as the core yarn. At the same time, long-staple cotton is used as the outer wrapping yarn, which is wrapped evenly on the outside of the intermediate reinforcing layer with a twist of 1200 twists / meter in a 25° helix angle and in the same direction, forming a skin-friendly outer wrapping layer, and finally producing a double-core composite core-spun yarn.

[0029] S5. Fabric Weaving: Using a machine weaving process, the aforementioned double-core composite core-spun yarn is used simultaneously as both the warp and weft systems. A 2 / 1 right-hand twill weave is selected, and the fabric is woven on an air-jet loom at a preset warp density of 140 ends / inch and a weft density of 100 ends / inch. This results in a bi-directional elastic greige fabric with a weight of approximately 150 g / m². 2 .

[0030] S6. Fabric finishing: The greige fabric obtained from the above weaving process is subjected to pre-shrinking, singeing, heat setting, and antistatic finishing processes in sequence to obtain the finished four-way stretch wear-resistant and breathable shirt fabric.

[0031] Specifically, the pre-shrinking process involves placing the yarn blank in a tension-free, continuous, loose pre-shrinking machine. First, it is sprayed with moisture at a linear speed of 20 meters per minute to achieve an overall moisture regain of 13.5%. Then, it enters a saturated steam chamber and is treated in saturated steam at 108°C for 75 seconds to fully release the internal stress of the yarn. Afterward, it enters a rubber blanket mechanical pre-shrinking zone, where approximately 4% of the warp is pre-shrinked at 95°C. Finally, it is dried and set in a drying zone at 90°C without tension.

[0032] Singeing treatment: The pre-shrunken fabric is fed into a two-positive-two-negative gas singeing machine. The fabric speed is controlled at 105 meters / minute, the flame temperature at 1100℃, and the flame distance is adjusted to achieve a singeing level of 4. After singeing, the fabric is immediately cooled by a cold water roller to obtain a smooth fabric surface.

[0033] Heat setting treatment: Performed on a needle-plate chain hot air setting machine, in a hot air environment of 170℃, for 60 seconds. Afterwards, it is rapidly cooled to below 50℃ in a cold air zone. This process stabilizes the surface fabric shape of the grey fabric, with a warp residual elongation of 3.5% and a weft residual elongation of 3.8%.

[0034] Antistatic finishing: Performed on a pad-dip finishing machine. The working solution consists of 30 g / L of durable polyether ester antistatic agent and 5 g / L of hydrophilic amino silicone oil softener. A single dip-and-pinch process is carried out at room temperature, with the liquid yield controlled at 70%. Subsequently, it is dried and cured in a hot air tenter at 125°C for 2 minutes.

[0035] Example 2: The preparation steps are the same as in Example 1, except for the following changes in materials: A 50S double-core composite core-spun yarn was prepared by using 30D spandex yarn and 75D T400 high-elastic yarn as the double core and 1.2D cotton staple fiber as the outer covering fiber. The yarn consisted of 6 parts by weight of spandex yarn, 12 parts by weight of T400 high-elastic yarn (divided into two equal parts), and 82 parts by weight of cotton staple fiber.

[0036] Using the four-way stretch, abrasion-resistant, and breathable shirt fabric prepared in Example 1, men's long-sleeved shirts were produced by cutting, sewing, and ironing according to conventional shirt manufacturing processes. Wearing tests showed that subjects experienced no significant restriction when raising their arms, bending over, or sitting for extended periods. After three months of wear, the fabric showed no significant arching or deformation at the elbows and armpits, maintaining its shape well. Simultaneously, the fabric exhibited good breathability, without any stuffy or sticky feeling.

[0037] like Figures 1-2 As shown, product testing: Existing conventional elastic fabric was selected as a comparative example, and its performance was compared with that of the fabric prepared in Example 1. Performance test results: The tested fabric had a warp elastic elongation of 18%, a weft elastic elongation of 35%, a residual elongation of 3.2%, an elastic recovery rate of 88%, and a Martindale abrasion resistance of 22,000 cycles. All performance characteristics met the design requirements.

[0038] The four-way stretch, abrasion-resistant, and breathable shirt fabric obtained by this invention has the following advantages: 1. High elasticity and unrestricted: It achieves high elastic elongation in both the warp and weft directions, and can stretch freely with the body's movements. There is no sense of restriction when raising your arms, bending over and other large movements, making the wearing experience more comfortable. 2. High recovery and anti-deformation: elastic recovery rate ≥85%, residual elongation ≤4%, no obvious residual deformation after long-term wear and repeated stretching, elbows, armpits and other parts are not easy to arch and bulge, and the shape is durable and crisp. 3. Wear-resistant and durable: The dual-core structure combined with the outer short fiber coating greatly improves the wear resistance of the fabric. The core yarn is not easy to break, the fabric is not easy to pill or fuzz, and the service life of the garment is extended by more than 100%. 4. Breathable and comfortable: The outer layer of short cellulose fibers ensures the fabric's moisture absorption and breathability. Combined with a reasonable weave density, it is not stuffy or sticky to wear, and also has good skin-friendliness. 5. Antistatic and easy to care for: The finishing process gives the fabric good antistatic properties, making it less likely to attract dust. At the same time, the fabric has good dimensional stability, is not easy to shrink, and is easier to care for.

[0039] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0040] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A two-core yarn structure four-way stretch abrasion-resistant and breathable shirt fabric, characterized in that, The four-way stretch wear-resistant and breathable shirt fabric is woven from double-core composite core-spun yarn, which includes, from the inside out, an inner core yarn, a middle reinforcing layer and a skin-friendly outer layer. The inner core yarn is composed of spandex yarn with high elastic elongation characteristics and T400 high elastic yarn with high elastic recovery characteristics arranged side by side; The intermediate reinforcing layer is made of T400 high-elastic yarn wound and wrapped around the inner core yarn in the circumferential direction; the skin-friendly outer layer is cellulose fiber, which wraps around the intermediate reinforcing layer to prevent the inner core yarn from being exposed due to friction during use.

2. The double-core yarn structure four-way stretch wear-resistant and breathable shirt fabric according to claim 1, characterized in that, In step S1, the single filament fineness of the spandex yarn is 20D-40D, the single filament fineness of the T400 high-elastic yarn is 50D-75D, and the linear density of the cellulose fiber is 1.2D-1.5D.

3. The double-core yarn structure four-way stretch wear-resistant and breathable shirt fabric according to claim 2, characterized in that, The total count of the dual-core composite core-spun yarn is 40S-60S. In the dual-core composite core-spun yarn, the proportion of spandex yarn is 5%-8%, the proportion of T400 high-elastic yarn is 10%-15%, and the proportion of cellulose fiber is 77%-85% by mass percentage.

4. A method for preparing a two-core yarn structure four-way stretch abrasion-resistant and breathable shirt fabric, used to prepare the two-core yarn structure four-way stretch abrasion-resistant and breathable shirt fabric as described in claim 3 above, characterized in that, Includes the following steps: S1. Material preparation: Prepare materials according to the following weight parts: 5-8 parts of spandex yarn, 10-15 parts of T400 high-elastic yarn, T400 high-elastic yarn is divided into two strands, the first strand is equal in weight to the spandex yarn, and the remainder is the second strand, which wraps the inner core yarn, and 77-85 parts of cellulose fiber. S2: Preparation of inner core yarn: A spandex yarn that provides high elongation elasticity and a T400 high elastic yarn that provides high recovery elasticity are unwound from two independent yarn bobbins in parallel with each other, and then fed in synchronously after being combined by a yarn guide. S3: Intermediate Reinforcing Layer Coating: On a hollow ingot coating machine, another T400 high-elasticity wire is wound in the same or opposite direction around the outer periphery of the above-mentioned inner core wire with a helix angle of 30°-55° and a coating twist of 600-1200 twists / meter to form an intermediate reinforcing core wire. S4: Outer short fiber coating into yarn: On a hollow spindle fancy twisting machine, the intermediate reinforcing core filament obtained in step S3 is passed through the center of the hollow spindle; at the same time, cellulose fibers are uniformly wrapped around the outside of the above-mentioned intermediate reinforcing core filament with a helix angle of 15°-40° to form a skin-friendly outer coating layer, and a double-core composite core-spun yarn is obtained. S5. Fabric weaving: The fabric is woven using a machine weaving process, with plain or twill weave. The double-core composite core-spun yarns prepared above are used as both the warp and weft systems. They are interwoven on the loom according to the preset warp and weft density to form a fabric with bidirectional elasticity. S6. Fabric finishing: The greige fabric obtained from the above weaving process is subjected to pre-shrinking, singeing, heat setting, and antistatic finishing processes in sequence to obtain the finished four-way stretch wear-resistant and breathable shirt fabric.

5. The preparation method according to claim 4, characterized in that, In step S5, the warp density of the woven fabric is 120-160 threads / inch, the weft density is 80-120 threads / inch, and the weight is 120-180 g / m². 2 .

6. The preparation method according to claim 4, characterized in that, In step S6, the pre-shrinking process includes: placing the woven fabric in a tension-free continuous loose pre-shrinking machine, controlling the fabric to pass through the spray humidification zone at a linear speed of 18-22 meters / minute, achieving an overall moisture regain of 13%-14%, then entering a saturated steam box, treating it in a saturated steam environment at 108℃±2℃ for 70-80 seconds, and then placing the fabric in a rubber blanket mechanical pre-shrinking zone, drying and shaping it without tension at 90℃ in the drying zone at a temperature of 95℃±5℃ and a preset pressure.

7. The preparation method according to claim 5, characterized in that, In step S6, the singeing process includes: introducing the pre-shrunken fabric into a gas singeing machine for singeing, controlling the fabric to pass through a flame at a temperature of 1100℃±50℃ at a speed of 100-110 meters / minute, and after the singeing is completed, the fabric is immediately cooled by a built-in cold water roller to remove surface fuzz and obtain a smooth fabric surface.

8. The preparation method according to claim 4, characterized in that, In step S6, the temperature of the heat setting treatment is 160℃-180℃, and the residual elongation of the fabric is ≤4%.

9. The preparation method according to claim 4, characterized in that, In step S6, the antistatic finishing includes: impregnating the heat-set fabric at room temperature with a padding solution consisting of a durable polyether ester antistatic agent and a hydrophilic amino silicone oil softener, controlling the padding solution rate to 70-80%, and then sending the impregnated fabric into a hot air tenter dryer to dry and fix it at 125℃±5℃ for 2 minutes.

10. The preparation method according to claim 4, characterized in that, The four-way stretch abrasion-resistant and breathable shirt fabric has a warp elongation of 15%-20% and a weft elongation of 30%-40%.

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