Production method of a biodegradable single-sided weft-knitted fabric with hidden horizontal stripe mesh effect

Abstract

The application discloses a biodegradable single-side weft-knitted fabric with hidden horizontal stripe and eyelet effects and a production method thereof. The biodegradable single-side weft-knitted fabric with hidden horizontal stripe and eyelet effects is interwoven by 40S cotton and biodegradable polyester fiber blended yarn and 75D / 72F fine denier light network structure regenerated polyester DTY filament, and the yarn weight ratio of the 40S cotton and biodegradable polyester fiber blended yarn and the 75D / 72F fine denier light network structure regenerated polyester DTY filament interwoven fabric is 88.4%:11.6%. The biodegradable single-side weft-knitted fabric with hidden horizontal stripe and eyelet effects comprises a front surface and a back surface, the front surface is provided with a hidden horizontal stripe front surface loop fabric layer, and the back surface is provided with a hidden horizontal stripe eyelet effect back surface loop fabric layer. The fabric has the advantages of different appearance effects on two surfaces of a single-side fabric, biodegradable characteristics, and the properties of moisture absorption, softness, air permeability and anti-pilling.

Description

[0001] This invention patent application is a divisional application of Chinese Patent Application No. 202211675023.3. The original application had the application number 202211675023.3 and the application date was December 26, 2022. The invention title is "A biodegradable single-sided weft-knitted fabric with a hidden horizontal stripe mesh effect and its production method". Technical Field

[0002] This invention relates to the field of knitted fabric technology, and in particular to a method for producing a biodegradable single-sided weft-knitted fabric with a hidden horizontal stripe mesh effect. Background Technology

[0003] Knitted garments such as polo shirts and T-shirts for spring and summer not only need to be soft to the touch, moisture-wicking, and breathable for comfortable wear, but also require the use of biodegradable and recycled fiber materials, making the production process green and environmentally friendly. This is one of the demands and development trends of our time. Existing fabrics for polo shirts, T-shirts, and other knitted garments are generally made of pure cotton, polyester-cotton blends, or polyester fibers with good moisture-wicking properties. Pure cotton fabric is soft, moisture-wicking, and breathable, but when the body sweats, it cannot wick sweat to the outer layer of the fabric in time, causing the fabric to stick to the skin and cause discomfort. Polyester-cotton blends combine the softness, moisture-wicking, and breathability of cotton with the crispness and quick-drying properties of polyester, but still does not have good moisture-wicking properties. Polyester materials have good moisture-wicking and quick-drying properties, but conventional materials are derived from petroleum, are not biodegradable, and are not considered green and eco-friendly textiles.

[0004] In view of this, the inventor, in order to address the numerous shortcomings and inconveniences caused by the imperfections in the aforementioned fabrics and their production methods, has conceived and actively researched and experimented with improvements to develop this invention. Summary of the Invention

[0005] The purpose of this invention is to provide a method for producing a biodegradable single-sided weft-knitted fabric with a hidden horizontal stripe mesh effect. This method preferably uses biodegradable polyester, cotton-spun yarn, and recycled polyester through a single-sided interlacing design and a special finishing process, resulting in a simple manufacturing process. The fabric produced by this method not only has a special double-sided appearance and color effect and biodegradable elasticity, but also has good moisture absorption, softness, and breathability.

[0006] To achieve the above objectives, the solution of the present invention is: A biodegradable single-sided weft-knitted fabric with a hidden horizontal stripe mesh effect is disclosed. The fabric is woven from a blend of 40S cotton and biodegradable polyester fiber yarn and 75D / 72F fine denier lightweight network structure recycled polyester DTY filaments. The yarn weight ratio of the 40S cotton and biodegradable polyester fiber blended yarn to the 75D / 72F fine denier lightweight network structure recycled polyester DTY filaments is 88.4%:11.6%. The fabric includes a fabric body with a front and a back side. The front side of the fabric body has a hidden horizontal stripe front loop fabric layer, and the back side of the fabric body has a hidden horizontal stripe mesh effect back loop fabric layer.

[0007] The concealed horizontal stripe front loop fabric layer is composed of alternating concealed raised horizontal stripes and concealed recessed stripes. The concealed raised horizontal stripes are woven from multiple continuous rows of front loops of coarse yarn, and the concealed recessed stripes are woven from one row of front loops of fine yarn. The concealed horizontal stripe mesh effect reverse loop fabric layer has prominent stripes. The prominent stripes have fine yarns arranged in a single row of single-needle loops with a 1-5-needle spacing and distributed in a dotted pattern on the reverse loop horizontal surface.

[0008] The single-needle, single-row, tucked loop suspended arc is distributed along the four ends of the rhombus on the reverse side of the coil fabric layer to form a mesh effect.

[0009] The roving is a blend of 40S cotton and biodegradable polyester fiber, and the fine yarn is 75D / 72F fine denier light network structure recycled polyester DTY filament.

[0010] The blending ratio of the 40S cotton and biodegradable polyester fiber blended yarn is 60%:40%.

[0011] The biodegradable single-sided weft-knitted fabric with the hidden horizontal stripe mesh effect has a weight of 145 g / m². 2 .

[0012] A method for producing a biodegradable single-sided weft-knitted fabric with a hidden horizontal stripe mesh effect includes a knitting process and a finishing process, wherein the knitting process is as follows: The fabric is knitted using a single-sided circular knitting machine with three needle tracks. The minimum cycle for a complete structure of the biodegradable single-sided weft-knitted fabric constituting the hidden horizontal bar mesh effect is 6 warp rows × 10 rows. The 6 warp rows are formed by 6 cylinder needles arranged in 3 needle tracks, and the 10 rows are formed by 10 loop-forming systems around the cylinder needles. The arrangement of the six syringe needles in a complete tissue is ABBCBB, where A is the low heel needle, B is the medium heel needle, and C is the high heel needle. The yarn threading method of a fully organized 10-way loop system is as follows: the first and sixth ways are threaded with 75D / 72F fine denier light network structure recycled polyester DTY filaments, and the second, third, fourth, fifth, seventh, eighth, ninth and tenth ways are threaded with 40S cotton and biodegradable polyester fiber blended yarn. The triangular configuration of a complete 10-way looping system is as follows: in the first channel, needles A and B correspond to looping, and needle C corresponds to tucking; in the sixth channel, needle A corresponds to tucking, and needles B and C correspond to looping; and in the second, third, fourth, fifth, seventh, eighth, ninth, and tenth channels, needles A, B, and C correspond to looping. Table 1 shows the triangle and yarn threading configuration for a complete fabric. Table 1. Triangle and yarn threading configuration for a complete structure ; Among them, the yarn configuration corresponds to: 1 represents 40S cotton and biodegradable polyester fiber blended yarn, 2 represents 75D / 72F fine denier light network structure recycled polyester DTY filament; Explanation of the triangular configuration symbols: "Δ" indicates that the syringe needle is looped, and "∩" indicates that the syringe needle is folded. Wherein: the average length of 75D / 72F fine denier light network structure recycled polyester DTY filaments interlaced in every 100 loops of the biodegradable single-sided weft-knitted fabric with the hidden horizontal stripe mesh effect is 22.4cm, and the average length of 40S cotton and biodegradable polyester fiber blended yarn in every 100 loops of the biodegradable single-sided weft-knitted fabric with the hidden horizontal stripe mesh effect is 24.0cm.

[0013] The finishing processes include: fabric preparation → sewing → oxygen bleaching → first acid wash → first cold wash → pre-setting → polyester dyeing → hot wash → second cold wash → cotton dyeing → third cold wash → second acid wash → soaping → fourth cold wash → dehydration → setting and drying → finished product setting → rolling → finished product inspection and testing; among which... Oxygen bleaching process: Cold water is injected into the cylinder of the Yagi L-type high-temperature and high-pressure dual-flow dyeing machine at a liquor ratio of 1:10. The main pump is started, and the fabric is placed in for circulation. The "feeding oxygen bleaching process program" is started, and JFC penetrant dilution solution (1.0–1.02% of fabric weight) and JET bath softener dilution solution (1.0–1.02% of fabric weight) are sequentially injected into the dyeing machine's cylinder from the auxiliary cylinder using a "linear feeding mode." The circulation process lasts for 5 minutes. After 1 minute, from the auxiliary tank of the dyeing machine, inject 1.2-1.22% caustic soda solution and 5.0-5.02% hydrogen peroxide solution by weight of the fabric into the main tank of the dyeing machine in a "linear feeding mode". After circulating for 3 minutes, heat the solution and fabric in the dyeing machine from room temperature to 100°C at a heating rate of 2.0°C / min and keep it at that temperature for 40 minutes. Then, cool it down to 80°C at a rate of 3.0°C / min and drain the overflow water at 60°C. First acid washing process: Cold water is injected into the tank of the Yaji L-type high-temperature and high-pressure dual-flow dyeing machine at a liquor ratio of 1:10. The main pump and acid washing program are started, so that the aqueous solution and fabric in the tank are heated from room temperature to 60°C at a heating rate of 4.0°C / min and kept at that temperature for circulation. Then, a diluted glacial acetic acid solution of 0.3-0.31% of the fabric weight is injected into the dyeing machine from the auxiliary tank. After circulating at 60°C for 15 minutes, the solution is drained. First cold wash process: Cold water is injected into the tank of the Asahi L-type high-temperature and high-pressure double-flow dyeing machine at a liquor ratio of 1:10. The main pump and cold wash program are started, and the liquid is drained after circulating and cold washing at room temperature for 10 minutes. The first cold wash process is repeated once. Pre-setting process: Pre-setting is carried out using a Taiwan Ligen tenter frame. Impregnation water is added, and the roll residue rate is controlled at 90-95%. The set temperatures of the first to tenth drying ovens are 160℃, 170℃, 180℃, 180℃, 180℃, 180℃, 180℃, 180℃, 170℃, respectively. The drying oven fan speed is set to 1600 rpm, the machine speed is controlled at 24-25 m / min, and the fabric temperature is controlled below 50℃. Polyester dyeing process: Inject cold water into the dyeing tank of the Yaji L-type high-temperature and high-pressure dual-flow dyeing machine at a liquor ratio of 1:10, start the main pump, and circulate the fabric. From the auxiliary tank of the dyeing machine, sequentially inject a diluted acetic acid solution (0.25–0.255% by weight of fabric) and a diluted high-temperature leveling agent solution (1.0–1.02% by weight of fabric) into the dyeing tank. After circulating for 3 minutes, inject a fully dissolved disperse dye solution (0.022–0.0222% by weight of fabric) into the dyeing tank. After circulating for 3 minutes, test the dyeing tank. The pH value of the dyeing solution in the dyeing vat should be controlled between 4.0 and 4.5. The dyeing program should be started, with the water solution and fabric in the dyeing machine heated from room temperature to 70°C at a rate of 2.5–3.0°C / min, and held for 5 minutes. Then, the temperature should be increased to 110°C at a rate of 1.2°C / min and held for 5 minutes. Next, the temperature should be increased to 130°C at a rate of 1.5°C / min and held for 20 minutes. Afterward, the temperature should be decreased to 110°C at a rate of 2.5°C / min. Finally, the temperature should be decreased to 80°C at a rate of 3.0°C / min for color matching. The dyeing solution should be drained after color confirmation. Hot washing process: Cold water is injected into the tank of the Asahi L-type high temperature and high pressure dual liquid flow dyeing machine at a liquor ratio of 1:10. The main pump and hot washing program are started, so that the water solution and fabric in the dyeing machine are heated from room temperature to 60°C at a heating rate of 4.0°C / min. After circulating for 10 minutes, the liquid is drained. Second cold wash process: Inject cold water into the tank of the Asahi L-type high temperature and high pressure dual liquid flow dyeing machine at a liquor ratio of 1:10, start the main pump and cold wash program, circulate and cold wash at room temperature for 10 minutes, then drain the liquid; repeat the second cold wash process once more. Cotton dyeing process: Cold water is injected into the dyeing tank of the Yaji L-type high-temperature and high-pressure dual-flow dyeing machine at a liquor ratio of 1:10. The main pump and the "reactive dye feeding dyeing" program are started, raising the temperature of the aqueous solution and fabric in the tank from room temperature to 60℃. In "linear feeding mode," within 20 minutes, a fully dissolved reactive dye solution (0.034-0.0344% of the fabric weight) is injected from the auxiliary tank into the main tank of the dyeing machine. After 15 minutes of circulation, in "linear feeding mode," within 20 minutes, a solution of dissolved sodium sulfate (10-10.2% of the fabric weight) is injected from the auxiliary tank into the main tank of the dyeing machine. After 20 minutes of circulation, in "linear feeding mode," within 20 minutes, a fully dissolved soda ash solution (5-5.01% of the fabric weight) is injected from the auxiliary tank into the main tank of the dyeing machine. After 30 minutes of circulation, a sample is taken for color matching. If the color is acceptable, the solution is drained after an overflow wash of 5 minutes. The third cold wash process: inject cold water into the tank of the Yaji L-type high temperature and high pressure dual liquid flow dyeing machine at a liquor ratio of 1:10, start the main pump and cold wash program, circulate and cold wash for 10 minutes, and then drain the liquid; The second acid washing process: Cold water is injected into the tank of the Asahi L-type high-temperature and high-pressure dual-flow dyeing machine at a bath ratio of 1:10. The main pump and acid washing program are started, so that the aqueous solution and fabric in the tank are heated from room temperature to 60°C at a heating rate of 4.0°C / min and kept at that temperature for circulation. Then, a diluted glacial acetic acid solution of 0.3-0.31% of the fabric weight is injected into the dyeing machine from the auxiliary tank. After circulating at 60°C for 15 minutes, the solution is drained. Soap washing process: Cold water is injected into the tank of the Yaji L-type high temperature and high pressure dual-flow dyeing machine at a liquor ratio of 1:10. The main pump and soap washing program are started. A diluted soap washing solution of 0.3-0.31% of the fabric weight is injected into the dyeing machine from the auxiliary tank of the dyeing machine. After circulating for 3 minutes, the temperature is raised from room temperature to 80°C at a rate of 3°C / minute. The temperature is maintained for 15 minutes. After overflow washing to a water temperature of 60°C, the liquid is drained. Fourth cold wash process: Inject cold water into the tank of the Asahi L-type high temperature and high pressure dual liquid flow dyeing machine at a liquor ratio of 1:10, start the main pump and cold wash program, circulate and cold wash for 5 minutes, then drain the liquid; repeat the fourth cold wash process once more. Setting and drying: The dehydrated semi-finished products are dried using a 8-section Fuji tenter frame with an 8-section drying oven; the fabric passes through the rolling mill without being wetted. The temperatures of the first to eighth sections of the drying oven are set to 110℃, 120℃, 120℃, 120℃, 120℃, 120℃, and 110℃ respectively. The oven fan speed is set to 1600 rpm, the machine speed is controlled at 19-20 m / min, and the fabric temperature is controlled below 50℃. Finished product setting process: The semi-finished product is set using an 8-section Monfuji tenter frame; the padding solution is prepared according to the corrected padding process formula. The weight of the padding solution is calculated and controlled based on the total liquid content on the fabric surface after padding and the volume of the padding tank; the padding solution formula is: 15g / L moisture-wicking finishing agent, 3g / L penetrant and 0.2g / L glacial acetic acid; 120L of the prepared solution is added to the padding tank of the Monfuji tenter frame, and the padding residue rate is controlled at 90-95%; the temperatures of the first to eighth sections of the tenter frame are set as follows: 130℃, 140℃, 150℃, 150℃, 150℃, 150℃, 150℃, 140℃, respectively; the oven fan speed is controlled at 1600 rpm; the machine speed is controlled at 24-25 m / min; and the fabric temperature is controlled below 50℃.

[0014] Compared with existing technologies, the biodegradable single-sided weft-knitted fabric with hidden horizontal stripe mesh effect of the present invention has the following advantages: 1. The fabric of this invention has a double-sided effect: It employs a single-sided loop structure displacement and a design using coarse and fine yarns to create looped arcs distributed in a dotted pattern, forming a mesh structure effect. When the wearer wears this fabric, the dotted distribution of the looped arcs in contact with the skin avoids the discomfort of the fabric sticking to the skin when sweating. Furthermore, the 40S cotton and biodegradable polyester blended yarn and the 75D / 72F fine denier lightweight network structure recycled polyester DTY filament have slightly different yarn counts, and the alternating weaving of these two types of yarns creates a subtle horizontal stripe appearance. On the front of the fabric, the subtly raised horizontal stripes woven with coarse yarns and the subtly recessed stripes woven with fine yarns are alternately arranged to form a front loop fabric layer with subtle horizontal stripes. On the reverse side of the fabric, the looped arcs are dotted on the fine yarn rows, forming a reverse loop fabric layer with a subtle horizontal stripe mesh effect, resulting in a smooth overall fabric surface. This invention's single-sided fabric has a double-sided effect with different appearance designs on both sides.

[0015] 2. The fabric of this invention has biodegradable characteristics: the blending ratio of 40S cotton and biodegradable polyester fiber is 60%:40%. This biodegradable polyester fiber is designed to ensure that clothing discarded or buried for 180 days is 95% biodegradable, returning to the natural environment. The 75D / 72F fine denier lightweight network structure recycled polyester DTY filament used is also a circular and renewable green fiber. The yarn weight ratio of the 40S cotton and biodegradable polyester fiber blended yarn and the 75D / 72F fine denier lightweight network structure recycled polyester DTY filament interwoven fabric is 88.4%:11.6%, with the proportion of chemical fiber and green fiber exceeding 50%, resulting in high biodegradability.

[0016] 3. The fabric of this invention has both softness and breathability and good moisture absorption properties: The fabric of this invention is treated with moisture-wicking and perspiration-absorbing functions to obtain good moisture absorption and wicking functions; the single-sided tufted displacement distribution of the 40S cotton and biodegradable polyester fiber blended yarn in the close-fitting layer gives the fabric a good point contact feel and moisture absorption properties, and increases the breathability of the fabric.

[0017] 4. The fabric of this invention has a simple manufacturing process: the fabric can be woven on a single-sided circular knitting machine with three needle tracks, and the finishing process is short, which is the characteristic of simple manufacturing process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram showing the hidden vertical stripe appearance effect on the front of the fabric of the present invention; Figure 2 This is a schematic diagram showing the hidden horizontal stripe mesh effect on the reverse side of the fabric of the present invention.

[0019] Symbol Explanation Front 10; Subtle raised horizontal stripes 11; Subtle recessed horizontal stripes 12; Back 20; Single needle single row tuck loop hanging arc 21; Prominent stripes 22; Visual mesh effect 23. Detailed Implementation

[0020] To further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0021] See Figure 1 and Figure 2 This invention discloses a biodegradable single-sided weft-knitted fabric with a hidden horizontal stripe mesh effect. The fabric is woven from a blend of 40S cotton and biodegradable polyester fiber yarn and 75D / 72F fine denier lightweight network structure recycled polyester DTY filaments. The yarn weight ratio of the 40S cotton and biodegradable polyester fiber blended yarn to the 75D / 72F fine denier lightweight network structure recycled polyester DTY filaments is 88.4%:11.6%. The fabric includes a fabric body with a front side 10 and a back side 20. The front side 10 of the fabric body has a hidden horizontal stripe front loop fabric layer, and the back side 20 has a hidden horizontal stripe mesh effect back loop fabric layer. This invention's fabric features a single-sided fabric with different appearance effects on both sides, biodegradable properties, and excellent wearing performance such as moisture absorption, softness, breathability, and anti-pilling.

[0022] The concealed horizontal stripe front loop fabric layer of the present invention is composed of alternating concealed raised horizontal stripes 11 and concealed recessed stripes 12. The concealed raised horizontal stripes 11 are woven from multiple rows of front loops of coarse yarn, and the concealed recessed stripes 12 are woven from one row of front loops of fine yarn. The concealed horizontal stripe mesh effect reverse loop fabric layer is distributed with prominent stripes 22. The prominent stripes 22 have a single-row, single-needle, looped suspension arc 21 made of fine yarn with a 1-5-needle interval and distributed in a dotted manner on the reverse loop horizontal surface.

[0023] The single-needle single-row coiled arc 21 of the present invention forms a mesh effect 23 by distributing along the four ends of the rhombus on the reverse coil fabric layer.

[0024] The roving of the present invention is a blend of 40S cotton and biodegradable polyester fiber, and the fine yarn is 75D / 72F fine denier light network structure recycled polyester DTY filament.

[0025] The blending ratio of the 40S cotton and biodegradable polyester fiber blended yarn of the present invention is 60%:40%.

[0026] The biodegradable single-sided weft-knitted fabric with the hidden horizontal stripe mesh effect of the present invention has a weight per square meter of 145 g / m². 2 .

[0027] This invention also discloses a method for producing a biodegradable single-sided weft-knitted fabric with a hidden horizontal stripe mesh effect, including a knitting process and a finishing process, wherein the knitting process is as follows: Knitting was performed on a single-sided circular knitting machine with a cylinder diameter of 30 inches, a gauge of 28 needles / inch, and a total needle count of 2640. The minimum cycle for a complete structure of the biodegradable single-sided weft-knitted fabric constituting the hidden horizontal bar mesh effect is 6 warp rows × 10 rows. The 6 warp rows consist of 6 cylinder needles arranged in 3 needle tracks, and the 10 rows consist of 10 loop-forming systems around the cylinder needles. The arrangement of the six syringe needles in a complete tissue is ABBCBB, where A is the low heel needle, B is the medium heel needle, and C is the high heel needle. The yarn threading method of a fully organized 10-way loop system is as follows: the first and sixth ways are threaded with 75D / 72F fine denier light network structure recycled polyester DTY filaments, and the second, third, fourth, fifth, seventh, eighth, ninth and tenth ways are threaded with 40S cotton and biodegradable polyester fiber blended yarn. The triangular configuration of a complete 10-way looping system is as follows: in the first channel, needles A and B correspond to looping, and needle C corresponds to tucking; in the sixth channel, needle A corresponds to tucking, and needles B and C correspond to looping; and in the second, third, fourth, fifth, seventh, eighth, ninth, and tenth channels, needles A, B, and C correspond to looping. Table 1 shows the triangle and yarn threading configuration for a complete fabric. Table 1. Triangle and yarn threading configuration for a complete structure ; Among them, the yarn configuration corresponds to: 1 represents 40S cotton and biodegradable polyester fiber blended yarn, 2 represents 75D / 72F fine denier light network structure recycled polyester DTY filament; Explanation of the triangular configuration symbols: "Δ" indicates that the syringe needle is looped, and "∩" indicates that the syringe needle is folded. Wherein: the average length of 75D / 72F fine denier light network structure recycled polyester DTY filaments interlaced in every 100 loops of the biodegradable single-sided weft-knitted fabric with the hidden horizontal stripe mesh effect is 22.4cm, and the average length of 40S cotton and biodegradable polyester fiber blended yarn in every 100 loops of the biodegradable single-sided weft-knitted fabric with the hidden horizontal stripe mesh effect is 24.0cm.

[0028] The fabric of this invention has a warp density of 89 loops per 5cm, a weft density of 108 loops per 5cm, a weight of 98g / m2, and a width of 204cm after finishing.

[0029] The finishing process of this invention includes: fabric handling → sewing → oxygen bleaching → first acid wash → first cold wash → pre-setting → polyester dyeing → hot wash → second cold wash → cotton dyeing → third cold wash → second acid wash → soaping → fourth cold wash → dehydration → setting and drying → finished product setting → rolling → finished product inspection and testing; wherein, Oxygen bleaching process: Cold water is injected into the cylinder of the Yagi L-type high-temperature and high-pressure dual-flow dyeing machine at a liquor ratio of 1:10. The main pump is started, and the fabric is placed in for circulation. The "feeding oxygen bleaching process program" is started, and JFC penetrant dilution solution (1.0–1.02% of fabric weight) and JET bath softener dilution solution (1.0–1.02% of fabric weight) are sequentially injected into the dyeing machine's cylinder from the auxiliary cylinder using a "linear feeding mode." The circulation process lasts for 5 minutes. After 1 minute, from the auxiliary tank of the dyeing machine, inject 1.2-1.22% caustic soda solution and 5.0-5.02% hydrogen peroxide solution by weight of the fabric into the main tank of the dyeing machine in a "linear feeding mode". After circulating for 3 minutes, heat the solution and fabric in the dyeing machine from room temperature to 100°C at a heating rate of 2.0°C / min and keep it at that temperature for 40 minutes. Then, cool it down to 80°C at a rate of 3.0°C / min and drain the overflow water at 60°C. First acid washing process: Cold water is injected into the tank of the Yaji L-type high-temperature and high-pressure dual-flow dyeing machine at a liquor ratio of 1:10. The main pump and acid washing program are started, so that the aqueous solution and fabric in the tank are heated from room temperature to 60°C at a heating rate of 4.0°C / min and kept at that temperature for circulation. Then, a diluted glacial acetic acid solution of 0.3-0.31% of the fabric weight is injected into the dyeing machine from the auxiliary tank. After circulating at 60°C for 15 minutes, the solution is drained. First cold wash process: Cold water is injected into the tank of the Asahi L-type high-temperature and high-pressure double-flow dyeing machine at a liquor ratio of 1:10. The main pump and cold wash program are started, and the liquid is drained after circulating and cold washing at room temperature for 10 minutes. The first cold wash process is repeated once. Pre-setting process: Pre-setting is carried out using a Taiwan Ligen tenter frame. Impregnation water is added, and the roll residue rate is controlled at 90-95%. The set temperatures of the first to tenth drying ovens are 160℃, 170℃, 180℃, 180℃, 180℃, 180℃, 180℃, 180℃, 170℃, respectively. The drying oven fan speed is set to 1600 rpm, the machine speed is controlled at 24-25 m / min, and the fabric temperature is controlled below 50℃. Polyester dyeing process: Inject cold water into the dyeing tank of the Yaji L-type high-temperature and high-pressure dual-flow dyeing machine at a liquor ratio of 1:10, start the main pump, and circulate the fabric. From the auxiliary tank of the dyeing machine, sequentially inject a diluted acetic acid solution (0.25–0.255% by weight of fabric) and a diluted high-temperature leveling agent solution (1.0–1.02% by weight of fabric) into the dyeing tank. After circulating for 3 minutes, inject a fully dissolved disperse dye solution (0.022–0.0222% by weight of fabric) into the dyeing tank. After circulating for 3 minutes, test the dyeing tank. The pH value of the dyeing solution in the dyeing vat should be controlled between 4.0 and 4.5. The dyeing program should be started, with the water solution and fabric in the dyeing machine heated from room temperature to 70°C at a rate of 2.5–3.0°C / min, and held for 5 minutes. Then, the temperature should be increased to 110°C at a rate of 1.2°C / min and held for 5 minutes. Next, the temperature should be increased to 130°C at a rate of 1.5°C / min and held for 20 minutes. Afterward, the temperature should be decreased to 110°C at a rate of 2.5°C / min. Finally, the temperature should be decreased to 80°C at a rate of 3.0°C / min for color matching. The dyeing solution should be drained after color confirmation. Hot washing process: Cold water is injected into the tank of the Asahi L-type high temperature and high pressure dual liquid flow dyeing machine at a liquor ratio of 1:10. The main pump and hot washing program are started, so that the water solution and fabric in the dyeing machine are heated from room temperature to 60°C at a heating rate of 4.0°C / min. After circulating for 10 minutes, the liquid is drained. Second cold wash process: Inject cold water into the tank of the Asahi L-type high temperature and high pressure dual liquid flow dyeing machine at a liquor ratio of 1:10, start the main pump and cold wash program, circulate and cold wash at room temperature for 10 minutes, then drain the liquid; repeat the second cold wash process once more. Cotton dyeing process: Cold water is injected into the dyeing tank of the Yaji L-type high-temperature and high-pressure dual-flow dyeing machine at a liquor ratio of 1:10. The main pump and the "reactive dye feeding dyeing" program are started, raising the temperature of the aqueous solution and fabric in the tank from room temperature to 60℃. In "linear feeding mode," within 20 minutes, a fully dissolved reactive dye solution (0.034-0.0344% of the fabric weight) is injected from the auxiliary tank into the main tank of the dyeing machine. After 15 minutes of circulation, in "linear feeding mode," within 20 minutes, a solution of dissolved sodium sulfate (10-10.2% of the fabric weight) is injected from the auxiliary tank into the main tank of the dyeing machine. After 20 minutes of circulation, in "linear feeding mode," within 20 minutes, a fully dissolved soda ash solution (5-5.01% of the fabric weight) is injected from the auxiliary tank into the main tank of the dyeing machine. After 30 minutes of circulation, a sample is taken for color matching. If the color is acceptable, the solution is drained after an overflow wash of 5 minutes. The third cold wash process: inject cold water into the tank of the Yaji L-type high temperature and high pressure dual liquid flow dyeing machine at a liquor ratio of 1:10, start the main pump and cold wash program, circulate and cold wash for 10 minutes, and then drain the liquid; The second acid washing process: Cold water is injected into the tank of the Asahi L-type high-temperature and high-pressure dual-flow dyeing machine at a bath ratio of 1:10. The main pump and acid washing program are started, so that the aqueous solution and fabric in the tank are heated from room temperature to 60°C at a heating rate of 4.0°C / min and kept at that temperature for circulation. Then, a diluted glacial acetic acid solution of 0.3-0.31% of the fabric weight is injected into the dyeing machine from the auxiliary tank. After circulating at 60°C for 15 minutes, the solution is drained. Soap washing process: Cold water is injected into the tank of the Yaji L-type high temperature and high pressure dual-flow dyeing machine at a liquor ratio of 1:10. The main pump and soap washing program are started. A diluted soap washing solution of 0.3-0.31% of the fabric weight is injected into the dyeing machine from the auxiliary tank of the dyeing machine. After circulating for 3 minutes, the temperature is raised from room temperature to 80°C at a rate of 3°C / minute. The temperature is maintained for 15 minutes. After overflow washing to a water temperature of 60°C, the liquid is drained. Fourth cold wash process: Inject cold water into the tank of the Asahi L-type high temperature and high pressure dual liquid flow dyeing machine at a liquor ratio of 1:10, start the main pump and cold wash program, circulate and cold wash for 5 minutes, then drain the liquid; repeat the fourth cold wash process once more. Setting and drying: The dehydrated semi-finished products are dried using a 8-section Fuji tenter frame with an 8-section drying oven; the fabric passes through the rolling mill without being wetted. The temperatures of the first to eighth sections of the drying oven are set to 110℃, 120℃, 120℃, 120℃, 120℃, 120℃, and 110℃ respectively. The oven fan speed is set to 1600 rpm, the machine speed is controlled at 19-20 m / min, and the fabric temperature is controlled below 50℃. Finished product setting process: The semi-finished product is set using an 8-section Monfuji tenter frame; the padding solution is prepared according to the corrected padding process formula. The weight of the padding solution is calculated and controlled based on the total liquid content on the fabric surface after padding and the volume of the padding tank; the padding solution formula is: 15g / L moisture-wicking finishing agent, 3g / L penetrant and 0.2g / L glacial acetic acid; 120L of the prepared solution is added to the padding tank of the Monfuji tenter frame, and the padding residue rate is controlled at 90-95%; the temperatures of the first to eighth sections of the tenter frame are set as follows: 130℃, 140℃, 150℃, 150℃, 150℃, 150℃, 150℃, 140℃, respectively; the oven fan speed is controlled at 1600 rpm; the machine speed is controlled at 24-25 m / min; and the fabric temperature is controlled below 50℃.

[0030] The finished fabric width and weight of this invention are controlled according to the required finished width and weight, with other processes following conventional procedures; the resulting greige fabric has a width of 155cm and a fabric weight of 145g / m². 2 .

[0031] Compared with existing technologies, the biodegradable single-sided weft-knitted fabric with hidden horizontal stripe mesh effect of the present invention has the following advantages: 1. The fabric of this invention has a double-sided effect: It employs a single-sided loop structure displacement and a design using coarse and fine yarns to create looped arcs distributed in a dotted pattern, forming a mesh structure effect. When the wearer wears this fabric, the dotted distribution of the looped arcs in contact with the skin avoids the discomfort of the fabric sticking to the skin when sweating. Furthermore, the 40S cotton and biodegradable polyester blended yarn and the 75D / 72F fine denier lightweight network structure recycled polyester DTY filament have slightly different yarn counts, and the alternating weaving of these two types of yarns creates a subtle horizontal stripe appearance. On the front of the fabric, the subtly raised horizontal stripes woven with coarse yarns and the subtly recessed stripes woven with fine yarns are alternately arranged to form a front loop fabric layer with subtle horizontal stripes. On the reverse side of the fabric, the looped arcs are dotted on the fine yarn rows, forming a reverse loop fabric layer with a subtle horizontal stripe mesh effect, resulting in a smooth overall fabric surface. This invention's single-sided fabric has a double-sided effect with different appearance designs on both sides.

[0032] 2. The fabric of this invention has biodegradable characteristics: the blending ratio of 40S cotton and biodegradable polyester fiber is 60%:40%. This biodegradable polyester fiber is designed to ensure that clothing discarded or buried for 180 days is 95% biodegradable, returning to the natural environment. The 75D / 72F fine denier lightweight network structure recycled polyester DTY filament used is also a circular and renewable green fiber. The yarn weight ratio of the 40S cotton and biodegradable polyester fiber blended yarn and the 75D / 72F fine denier lightweight network structure recycled polyester DTY filament interwoven fabric is 88.4%:11.6%, with the proportion of chemical fiber and green fiber exceeding 50%, resulting in high biodegradability.

[0033] 3. The fabric of this invention has both softness and breathability and good moisture absorption properties: The fabric of this invention is treated with moisture-wicking and perspiration-absorbing functions to obtain good moisture absorption and wicking functions; the single-sided tufted displacement distribution of the 40S cotton and biodegradable polyester fiber blended yarn in the close-fitting layer gives the fabric a good point contact feel and moisture absorption properties, and increases the breathability of the fabric.

[0034] 4. The fabric of this invention has a simple manufacturing process: the fabric can be woven on a single-sided circular knitting machine with three needle tracks, and the finishing process is short, which is the characteristic of simple manufacturing process.

[0035] The biodegradable single-sided weft-knitted fabric with hidden horizontal stripe mesh effect produced by the above method was tested for its moisture absorption and quick-drying properties after being left to stand for 48 hours under standard conditions, in accordance with the standard. The corresponding standard and test results are shown in Table 2.

[0036] Table 2 Fabric performance test results ; The above embodiments and accompanying drawings are not intended to limit the product form and style of the present invention. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of the present invention.

Claims

1. A method for producing a biodegradable single-sided weft-knitted fabric with a hidden horizontal stripe mesh effect, characterized in that: It includes a knitting process and a finishing process, wherein the knitting method of the knitting process is as follows: The fabric is knitted using a single-sided circular knitting machine with three needle tracks. The minimum cycle for a complete structure of the biodegradable single-sided weft-knitted fabric constituting the hidden horizontal bar mesh effect is 6 warp rows × 10 rows. The 6 warp rows are formed by 6 cylinder needles arranged in 3 needle tracks, and the 10 rows are formed by 10 loop-forming systems around the cylinder needles. The arrangement of the six syringe needles in a complete tissue is ABBCBB, where A is the low heel needle, B is the medium heel needle, and C is the high heel needle. The yarn threading method of a fully organized 10-way loop system is as follows: the first and sixth ways are threaded with 75D / 72F fine denier light network structure recycled polyester DTY filaments, and the second, third, fourth, fifth, seventh, eighth, ninth and tenth ways are threaded with 40S cotton and biodegradable polyester fiber blended yarn. The triangular configuration of a complete 10-way looping system is as follows: in the first channel, needles A and B correspond to looping, and needle C corresponds to tucking; in the sixth channel, needle A corresponds to tucking, and needles B and C correspond to looping; and in the second, third, fourth, fifth, seventh, eighth, ninth, and tenth channels, needles A, B, and C correspond to looping. Table 1 shows the triangle and yarn threading configuration for a complete fabric. Table 1. Triangle and yarn threading configuration for a complete structure ； Among them, the yarn configuration corresponds to: 1 represents 40S cotton and biodegradable polyester fiber blended yarn, 2 represents 75D / 72F fine denier light network structure recycled polyester DTY filament; Explanation of triangle configuration symbols: "Δ" indicates that the syringe needle is looped, and "∩" indicates that the syringe needle is folded. Wherein: the average length of 75D / 72F fine denier light network structure recycled polyester DTY filaments interlaced in every 100 loops of the biodegradable single-sided weft-knitted fabric with the hidden horizontal stripe mesh effect is 22.4cm, and the average length of 40S cotton and biodegradable polyester fiber blended yarn in every 100 loops of the biodegradable single-sided weft-knitted fabric with the hidden horizontal stripe mesh effect is 24.0cm.

2. The method for producing a biodegradable single-sided weft-knitted fabric with a hidden horizontal stripe mesh effect as described in claim 1, characterized in that: The finishing processes include: fabric preparation → sewing → oxygen bleaching → first acid wash → first cold wash → pre-setting → polyester dyeing → hot wash → second cold wash → cotton dyeing → third cold wash → second acid wash → soaping → fourth cold wash → dehydration → setting and drying → finished product setting → rolling → finished product inspection and testing; among which... Oxygen bleaching process: Cold water is injected into the cylinder of the Yagi L-type high-temperature and high-pressure dual-flow dyeing machine at a liquor ratio of 1:

10. The main pump is started, and the fabric is placed in for circulation. The "feeding oxygen bleaching process program" is started, and JFC penetrant dilution solution (1.0–1.02% of fabric weight) and JET bath softener dilution solution (1.0–1.02% of fabric weight) are sequentially injected into the dyeing machine's cylinder from the auxiliary cylinder in "linear feeding mode." The circulation is continued for 5 minutes. After 1 minute, from the auxiliary tank of the dyeing machine, inject 1.2-1.22% caustic soda solution and 5.0-5.02% hydrogen peroxide solution by weight of the fabric into the main tank of the dyeing machine in a "linear feeding mode". After circulating for 3 minutes, heat the solution and fabric in the dyeing machine from room temperature to 100°C at a heating rate of 2.0°C / min and keep it at that temperature for 40 minutes. Then, cool it down to 80°C at a rate of 3.0°C / min and drain the overflow water at 60°C. First pickling process: Cold water is injected into the tank of the Yaji L-type high-temperature and high-pressure dual-flow dyeing machine at a liquor ratio of 1:

10. The main pump and pickling program are started, so that the aqueous solution and fabric in the tank are heated from room temperature to 60°C at a heating rate of 4.0°C / min and kept at that temperature for circulation. Then, a diluted glacial acetic acid solution of 0.3-0.31% of the fabric weight is injected into the dyeing machine from the auxiliary tank. After circulating at 60°C for 15 minutes, the solution is drained. First cold wash process: Cold water is injected into the tank of the Yaji L-type high-temperature and high-pressure double-flow dyeing machine at a liquor ratio of 1:

10. The main pump and cold wash program are started, and the liquid is drained after circulating and cold washing at room temperature for 10 minutes. The first cold wash process is repeated once. Pre-setting process: Pre-setting is carried out using a Taiwan Ligen tenter frame. Impregnation water is added, and the roll-off rate is controlled at 90-95%. The set temperatures of the first to tenth drying ovens are 160℃, 170℃, 180℃, 180℃, 180℃, 180℃, 180℃, 180℃, 170℃, respectively. The oven fan speed is set to 1600 rpm, the machine speed is controlled at 24-25 m / min, and the fabric temperature is controlled below 50℃. Polyester dyeing process: Inject cold water into the dyeing tank of the Yaji L-type high-temperature and high-pressure dual-flow dyeing machine at a liquor ratio of 1:10, start the main pump, and circulate the fabric. From the auxiliary tank of the dyeing machine, sequentially inject a diluted acetic acid solution (0.25–0.255% by weight of fabric) and a diluted high-temperature leveling agent solution (1.0–1.02% by weight of fabric) into the dyeing tank. After circulating for 3 minutes, inject a fully dissolved disperse dye solution (0.022–0.0222% by weight of fabric) into the dyeing tank. After circulating for 3 minutes, test the dyeing tank. The pH value of the dyeing solution in the dyeing vat should be controlled between 4.0 and 4.

5. The dyeing program should be started, with the water solution and fabric in the dyeing machine heated from room temperature to 70°C at a rate of 2.5–3.0°C / min, and held for 5 minutes. Then, the temperature should be increased to 110°C at a rate of 1.2°C / min and held for 5 minutes. Next, the temperature should be increased to 130°C at a rate of 1.5°C / min and held for 20 minutes. Afterward, the temperature should be decreased to 110°C at a rate of 2.5°C / min. Finally, the temperature should be decreased to 80°C at a rate of 3.0°C / min for color matching. The dyeing solution should be drained after color confirmation. Hot washing process: Cold water is injected into the tank of the Asahi L-type high temperature and high pressure dual liquid flow dyeing machine at a liquor ratio of 1:

10. The main pump and hot washing program are started, so that the water solution and fabric in the dyeing machine are heated from room temperature to 60°C at a heating rate of 4.0°C / min. After circulating for 10 minutes, the liquid is drained. Second cold wash process: Inject cold water into the tank of the Asahi L-type high temperature and high pressure dual liquid flow dyeing machine at a liquor ratio of 1:10, start the main pump and cold wash program, circulate and cold wash at room temperature for 10 minutes, then drain the liquid; repeat the second cold wash process once more. Cotton dyeing process: Cold water is injected into the dyeing tank of the Yaji L-type high-temperature and high-pressure dual-flow dyeing machine at a liquor ratio of 1:

10. The main pump and the "reactive dye feeding dyeing" program are started, raising the temperature of the aqueous solution and fabric in the tank from room temperature to 60℃. In "linear feeding mode," within 20 minutes, a fully dissolved reactive dye solution (0.034–0.0344% of the fabric weight) is injected from the auxiliary tank into the main tank of the dyeing machine. After 15 minutes of circulation, in "linear feeding mode," within 20 minutes, a solution of dissolved sodium sulfate (10–10.2% of the fabric weight) is injected from the auxiliary tank into the main tank of the dyeing machine. After 20 minutes of circulation, in "linear feeding mode," within 20 minutes, a fully dissolved soda ash solution (5–5.01% of the fabric weight) is injected from the auxiliary tank into the main tank of the dyeing machine. After 30 minutes of circulation, a sample is taken for color matching. If the color is acceptable, the solution is drained after an overflow wash of 5 minutes. The third cold wash process: inject cold water into the tank of the Yaji L-type high temperature and high pressure dual liquid flow dyeing machine at a liquor ratio of 1:10, start the main pump and cold wash program, circulate and cold wash for 10 minutes, and then drain the liquid; The second acid washing process: Cold water is injected into the tank of the Asahi L-type high-temperature and high-pressure dual-flow dyeing machine at a liquor ratio of 1:

10. The main pump and acid washing program are started, so that the aqueous solution and fabric in the tank are heated from room temperature to 60°C at a heating rate of 4.0°C / min and kept at that temperature for circulation. Then, a diluted glacial acetic acid solution of 0.3-0.31% of the fabric weight is injected into the dyeing machine from the auxiliary tank. After circulating at 60°C for 15 minutes, the solution is drained. Soap washing process: Cold water is injected into the tank of the Yaji L-type high temperature and high pressure dual-flow dyeing machine at a liquor ratio of 1:

10. The main pump and soap washing program are started. A diluted soap washing solution of 0.3-0.31% of the fabric weight is injected into the dyeing machine from the auxiliary tank of the dyeing machine. After circulating for 3 minutes, the temperature is raised from room temperature to 80°C at a rate of 3°C / minute. The temperature is maintained for 15 minutes. After overflow washing to a water temperature of 60°C, the liquid is drained. Fourth cold wash process: Inject cold water into the tank of the Asahi L-type high temperature and high pressure dual liquid flow dyeing machine at a liquor ratio of 1:10, start the main pump and cold wash program, circulate and cold wash for 5 minutes, then drain the liquid; repeat the fourth cold wash process once more. Setting and drying: The dehydrated semi-finished products are dried using a 8-section Fuji tenter frame with an 8-section drying oven. The fabric passes through the rolling mill without being wetted. The temperatures of the first to eighth sections of the drying oven are set to 110℃, 120℃, 120℃, 120℃, 120℃, 120℃, and 110℃, respectively. The oven fan speed is set to 1600 rpm, the machine speed is controlled at 19-20 m / min, and the fabric temperature is controlled below 50℃. Finished product setting process: The semi-finished product is set using an 8-section Monfuji tenter frame; the padding solution is prepared according to the corrected padding process formula. The weight of the padding solution is calculated and controlled based on the total liquid content on the fabric surface after padding and the volume of the padding tank; the padding solution formula is: 15g / L moisture-wicking finishing agent, 3g / L penetrant and 0.2g / L glacial acetic acid; 120L of the prepared solution is added to the padding tank of the Monfuji tenter frame, and the padding residue rate is controlled at 90-95%; the temperatures of the first to eighth sections of the tenter frame are set as follows: 130℃, 140℃, 150℃, 150℃, 150℃, 150℃, 150℃, 140℃, respectively; the oven fan speed is controlled at 1600 rpm; the machine speed is controlled at 24-25 m / min; and the fabric temperature is controlled below 50℃.

3. The method for producing a biodegradable single-sided weft-knitted fabric with a hidden horizontal stripe mesh effect as described in claim 1 or 2, characterized in that: The biodegradable single-sided weft-knitted fabric with a hidden horizontal stripe mesh effect produced by this manufacturing method includes a fabric body having a front and a back side. The front side of the fabric body has a hidden horizontal stripe front loop fabric layer, and the back side of the fabric body has a hidden horizontal stripe mesh effect back loop fabric layer. The hidden horizontal stripe front loop fabric layer is composed of alternating hidden raised horizontal stripes and hidden recessed stripes. The hidden raised horizontal stripes are woven from multiple rows of front loops of coarse yarn, and the hidden recessed stripes are woven from one row of front loops of fine yarn. The hidden horizontal stripe mesh effect back loop fabric layer has prominent stripes distributed on it. The prominent stripes have a single-needle, single-row, tucked arc made of fine yarn with a 1-5 stitch interval and distributed in a dotted pattern on the surface of the back loop horizontal row.

4. The method for producing a biodegradable single-sided weft-knitted fabric with a hidden horizontal stripe mesh effect as described in claim 3, characterized in that: The single-needle, single-row, tucked loop suspended arc is distributed along the four ends of the rhombus on the reverse side of the coil fabric layer to form a mesh effect.

5. The method for producing a biodegradable single-sided weft-knitted fabric with a hidden horizontal stripe mesh effect as described in claim 3, characterized in that: The roving is a blend of 40S cotton and biodegradable polyester fiber, and the fine yarn is 75D / 72F fine denier light network structure recycled polyester DTY filament.

6. The method for producing a biodegradable single-sided weft-knitted fabric with a hidden horizontal stripe mesh effect as described in claim 3, characterized in that: The blending ratio of the 40S cotton and biodegradable polyester fiber blended yarn is 60%:40%.

7. The method for producing a biodegradable single-sided weft-knitted fabric with a hidden horizontal stripe mesh effect as described in claim 3, characterized in that: The yarn weight ratio of 40S cotton blended with biodegradable polyester fiber and 75D / 72F fine denier light network structure recycled polyester DTY filament is 88.4%:11.6%.

8. The method for producing a biodegradable single-sided weft-knitted fabric with a hidden horizontal stripe mesh effect as described in claim 3, characterized in that: The biodegradable single-sided weft-knitted fabric with the hidden horizontal stripe mesh effect has a weight of 145 g / m². 2 .

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