Double-sided fabric with mildew-resistant and antibacterial functions and weaving method and application thereof

Abstract

The application belongs to the technical field of textile knitting, and particularly relates to a double-sided fabric with mildew-proof and antibacterial functions and a knitting method and application thereof. The mass percentage of PA6 30D / 34F SD DTY mildew-proof and antibacterial yarn in the double-sided fabric is 56%-70%, the mass percentage of PA6 15D / 5F SD DTY yarn is 8%-11%, and the mass percentage of Spandex 30D spandex is 22%-33%. The double-sided fabric with mildew-proof and antibacterial functions obtained by the application has the functions of deodorization, mildew-proof, antibiosis and anti-mite, and can still maintain good functional effects after 150 times of washing.

Description

Technical Field

[0001] This invention pertains to textile knitting technology, specifically relating to a double-sided fabric with anti-mildew and antibacterial functions, its weaving method, and its applications. Background Technology

[0002] In recent years, the global outbreak of epidemics has significantly increased public awareness of the hygienic properties of textiles, making antibacterial and anti-mildew functions important requirements for consumers and medical institutions. Mold and bacteria thrive in damp environments, potentially causing skin allergies, respiratory illnesses, and even cross-infection, making these features particularly crucial in medical, home, and sportswear sectors. Natural fibers are susceptible to microbial attack: cotton, linen, and other natural fabrics are prone to mold and deterioration in damp environments, shortening their lifespan. The rise of anti-mildew and antibacterial fabrics is a result of the combined effects of health demands, environmental pressures, technological breakthroughs, policy guidance, and consumption upgrades.

[0003] Currently, most double-sided fabrics on the market cannot achieve odor prevention at the source or long-term mildew prevention, and the antibacterial ability of fabrics on the market still needs to be improved.

[0004] For example, Chinese patent CN114108162A discloses a weft-knitted double-sided fabric with odor-proof function and its processing method. The weft-knitted double-sided fabric with odor-proof function includes a fabric body, which includes a face yarn, a padding yarn, a connecting layer, and a bottom yarn. The face yarn is 20D / 24F high-elastic semi-dull nylon DTY yarn. The padding yarn and the connecting layer are both 20D deodorizing Lycra spandex. The bottom yarn is 100S / 1 Micro Modal yarn. The face yarn and the padding yarn are combined to form an outer layer, and the bottom yarn and the padding yarn are combined to form an inner layer. The outer layer and the inner layer are connected by the connecting layer. The selection of this surface yarn ensures that the front side is less prone to pilling and maintains its shape well; the selection of this bottom yarn provides good moisture absorption and breathability, and reduces static electricity; 20D deodorizing Lycra spandex is used as the padding yarn for both the surface and bottom yarns, as well as the connecting layer yarn between the two sides; thus, the entire fabric body has deodorizing function, good moisture absorption and breathability, and is a weft-knitted double-sided fabric that is not prone to pilling and has a smooth and beautiful appearance. Although this invention has good deodorizing function, there is still room for improvement, and the anti-mildew and antibacterial functions need to be enhanced.

[0005] For example, Li Min and Zhong Zengyuan, in their article "Production Practice of Antibacterial, Deodorizing, Moisture-wicking and Quick-drying Knitted Fabrics" (Knitting Industry, 2015, 0(1):7-8), detailed the fabric weaving process, including equipment parameters, needle arrangement, triangular arrangement, yarn threading method, precautions, dyeing and finishing processes, and technical improvement points. They also tested the fabric's antibacterial, deodorizing, and moisture-wicking properties, showing that the fabric effectively combines the antibacterial and deodorizing properties of bamboo charcoal fiber with the moisture-wicking and quick-drying properties of linear fiber coating. The fabric has a soft hand feel, antibacterial and health-promoting properties, is comfortable to wear, has good moisture-wicking and quick-drying functions, and exhibits good dimensional stability after washing and dry cleaning, making it suitable for making winter and summer knitted garments. However, the preparation method of this invention is complex, requiring multiple processes and consuming resources.

[0006] Therefore, there is an urgent need to study a weaving method for double-sided fabrics that can provide good anti-mildew, antibacterial, anti-odor, and anti-mite functions, while being environmentally friendly, energy-saving, and cost-effective. Summary of the Invention

[0007] In view of the shortcomings of the existing technology, the present invention aims to provide a weaving method for double-sided fabric with anti-mildew and antibacterial functions.

[0008] Terminology Explanation: Unless otherwise defined, all technical terms used herein have the same meanings as commonly understood by one of ordinary skill in the art to which this subject matter pertains. Unless otherwise stated, all patents, patent inventions, and disclosures cited throughout this document are incorporated herein by reference in their entirety. Where multiple definitions exist for terms herein, the definitions provided in this chapter shall prevail.

[0009] The term "PA6" used in this article refers to Nylon 6, a common synthetic fiber in chemical fibers.

[0010] The term "D number" used in this article refers to the total thickness of the yarn, such as 20D, 30D, 40D, 70D, 210D, 420D, etc. The higher the D number, the thicker and stronger the yarn.

[0011] The term "F number" used in this article refers to the number of single filaments, such as 24F, 34F, 68F, etc. The higher the F number, the softer and fluffier the yarn, but the slightly lower the strength of the single filaments; the lower the F number, the stiffer and more wear-resistant the yarn.

[0012] The term "DTY" used in this article refers to: stretch deformed yarn.

[0013] The terms “SD” and “FD” used in this article refer to the luster of yarn.

[0014] To achieve the above objectives, the present invention adopts the following technical solution: On the one hand, the present invention provides a double-sided fabric with anti-mildew and antibacterial functions, wherein the mass percentage of PA630D / 34F SD DTY anti-mildew and antibacterial yarn in the fabric is 56%-70%, the mass percentage of PA6 15D / 5F SD DTY yarn is 8%-11%, and the mass percentage of Spandex 30D spandex is 22%-33%.

[0015] Preferably, in the double-sided fabric, the mass percentage of PA6 30D / 34F SD DTY anti-mildew and antibacterial yarn is 60%-65%, the mass percentage of PA6 15D / 5F SD DTY yarn is 9%-11%, and the mass percentage of Spandex 30D spandex is 25%-30%. More preferably, the fabric contains 62% PA6 30D / 34F SD DTY anti-mildew and antibacterial yarn, 10% PA6 15D / 5F SD DTY yarn, and 28% Spandex 30D spandex.

[0016] In some specific embodiments, the double-sided fabric includes the following raw materials: PA6 30D / 34F SD DTY 72 pieces; PA6 15D / 5F SD DTY 18 pieces; Spandex 30D 72 pieces.

[0017] On the other hand, the present invention provides a weaving method for a double-sided fabric with anti-mildew and antibacterial functions, wherein the anti-mildew and antibacterial yarn and ordinary yarn are woven together on a double-sided circular knitting machine to form the fabric.

[0018] Preferably, the knitting process includes the following steps: A 34” 44G double-needle bed circular knitting machine is used, with 90 yarn feed lines and a 10-line cycle. Both the upper and lower needle beds have high-heel and low-heel needles, with the high-heel needles on the upper bed opposite the low-heel needles on the lower bed. The first and sixth systems use PA6 15D / 5F SD DTY yarn. In the first system, the low-heel (grade 2) needles on both the upper and lower needle beds hook the yarn, and in the sixth system, the high-heel (grade 1) needles on both the upper and lower needle beds hook the yarn. These two systems use semi-triangle knitting, non-loop knitting, to connect the outer and inner layers of the upper and lower knitting. The second, third, fourth, fifth, seventh, eighth, ninth, and tenth loop knitting systems use PA6 30D / 34F SD DTY anti-mildew and antibacterial yarn, with a spandex padding. In 30D, each needle on either the upper or lower needle bed is half-emerged and knits the outer and inner layers of fabric under the control of the looping triangle. These eight looping systems knit two horizontal rows of loops for the outer and inner layers. The fabric is formed by connecting the first and sixth yarns together. Adjusting the inner diameter of the three conveyor discs of the circular knitting machine drives the yarn storage device via the conveyor belt, providing the corresponding yarn feed speed and guiding the corresponding yarn length for each looping system.

[0019] Preferably, the inner diameter of the conveyor tray is 10 inches.

[0020] Preferably, the operating speed of the large circular kiln is 13-18 r / min; More preferably, the operating speed of the large circular kiln is 15 r / min.

[0021] Preferably, the PA6 30D / 34F SD DTY anti-mildew and antibacterial yarn can provide a yarn feed rate of 88-123m / min per thread, and the yarn length is 12.5-17.5cm / 100 needles; More preferably, the inner diameter of the feed tray for the PA6 30D / 34F SD DTY anti-mildew and antibacterial yarn inlet is 6.8 inches, each inlet can provide a yarn feed rate of 102.3m / min, and a total of 72 trays are used, with an inlet yarn length of 14.5cm / 100 needles.

[0022] Preferably, the PA6 15D / 5F SD DTY yarn can provide a yarn feed rate of 120-138m / min per thread, and the thread length is 17-19.5cm / 100 needles; More preferably, the inner diameter of the feed tray for the PA6 15D / 5F SD DTY yarn inlet is 4.6 inches, each inlet can provide a yarn feed rate of 134.1m / min, and 18 trays are used, with a yarn length of 19cm / 100 needles.

[0023] Preferably, the Spandex 30D spandex can provide a yarn feed rate of 39-53m / min per thread, and the yarn length is 5.5-7.5cm / 100 needles; More preferably, the Spandex 30D spandex feeder has an inner diameter of 6.5 inches, provides a yarn feed rate of 45.9 m / min per feed line, and uses 72 feeders with a yarn length of 6.5 cm / 100 needles.

[0024] On the other hand, the present invention also provides a dyeing and finishing process for the fabric woven by the above-described weaving method, including the following steps: S1. Degreasing: Multi-tank water cleaning, first hot water wash then cold water wash, with the temperature decreasing from high to low. Add the degreasing formula (degreasing agent, emulsifier, chelating dispersant, soda ash) to the degreasing machine tank. The water wash passes through the six sealed tanks of the degreasing machine in sequence. The temperatures of the six sealed tanks are 80℃, 90℃, 75℃, 65℃, 55℃, and 30℃ respectively. The tension is 25N and the machine speed is 20m / min. S2, Pre-set type: Pre-set mechanical width 147cm, pre-set temperature 198℃, added antioxidant, wind power 90%-95%, machine speed 21m / min, pre-set type; S3. Dyeing: Use acid dyes and dyeing auxiliaries (leveling agent, glacial acetic acid and anti-crease agent) in a high temperature and high pressure overflow dyeing machine at a temperature of 95℃ for 50 minutes. S4. Finishing: The finished product is finished with a machine width of 146cm. A hydrophilic softener (9424: 40G / L) is added, with an air force of 65% and a machine speed of 20m / min. Post-setting treatment is then performed. The finished product has a fabric width of 142cm and a weight of 285G / M2. S5. Inspection: Conduct quality inspection on the prepared finished product.

[0025] On the other hand, the present invention provides the application of the above-mentioned double-sided fabric in textile knitting.

[0026] Furthermore, the present invention also provides the application of the above-mentioned weaving method and dyeing and finishing process in textile knitting.

[0027] Compared with the prior art, the present invention has the following beneficial effects: (1) The anti-mildew and antibacterial double-sided fabric obtained by this invention is woven using a high-density 44G double-sided circular knitting machine. The high-density 44G machine has finer and denser needles, which can weave finer denier chemical fiber raw materials into loops, resulting in a more delicate and compact fabric. The woven fabric has a softer and more comfortable feel, meeting the requirements for the feel of underwear.

[0028] (2) The thickness of the anti-mildew and antibacterial double-sided fabric obtained by the present invention is 0.85mm. The outer and inner layers are woven with PA6 30 / 34SD DTY anti-mildew and antibacterial yarn and spandex 30D, and connected in the middle with PA6 15 / 5 SD DTY. The fabric thickness is 0.85mm, which meets the requirements for the warmth retention performance of the fabric.

[0029] (3) The double-layer fabric obtained by the present invention is an elastic fabric with good elongation and resilience; the elastic fabric with added spandex can recover and maintain the original shape of the fabric after stretching; the garment has good wrinkle resistance and shaping performance.

[0030] (4) The anti-mildew and antibacterial double-sided fabric obtained by the present invention has anti-odor, anti-mildew, antibacterial and anti-mite functions, and can still maintain good functional effects after 150 washes.

[0031] (5) The anti-mildew and antibacterial double-sided fabric obtained by the present invention can reduce and lower resource consumption during the finishing and post-use process, and save energy and protect the environment. Attached Figure Description

[0032] Figure 1This is a diagram showing the needle arrangement in Example 1; Figure 2 This is a triangular arrangement diagram of the machine tool components in Example 1; Figure 3 This is the weaving pattern for Example 1. Detailed Implementation

[0033] The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are not included in this description. All embodiments are within the scope of protection of this invention. Unless otherwise specified, the materials and reagents used are commercially available.

[0034] Specific raw material information is shown in Table 1: Table 1. Raw Material Information

[0035] Example 1: A double-sided fabric with anti-mildew and antibacterial functions It is composed of the following raw materials: PA6 30D / 34F SD DTY anti-mildew and antibacterial yarn, 72 pieces; PA6 15D / 5F SD DTY, 18 pieces; Spandex 30D, 72 pieces; Weaving method: This machine uses an Italian Santoni OPEN-220 double-needle-bed circular knitting machine (34” 44G) with 90 yarn feed lines and a 10-feed-line cycle. Both the upper and lower needle beds have high-heel and low-heel needles, with the high-heel needles on the upper bed opposite the low-heel needles on the lower bed. Systems 1 and 6 use PA6 15D / 5F SD DTY yarn. In system 1, the low-heel (grade 2) needles on both the upper and lower needle beds pick up the yarn, while in system 6, the high-heel (grade 1) needles on both the upper and lower needle beds pick up the yarn. These two systems use semi-triangle knitting, non-loop knitting, to connect the outer and inner layers of the knitted fabric. Systems 2, 3, 4, 5, 7, 8, 9, and 10 use PA6 30D / 34F SD DTY anti-mildew and antibacterial yarn, with a spandex padding. In 30D, each needle on either the upper or lower needle bed is half-emerged and knits the outer and inner layers of fabric under the control of the looping triangle. These eight looping systems knit two horizontal rows of loops for the outer and inner layers. The fabric is formed by connecting the first and sixth yarns together. Adjusting the inner diameter of the three conveyor discs of the circular knitting machine drives the yarn storage device via the conveyor belt, providing the corresponding yarn feed speed and guiding the corresponding yarn length for each looping system.

[0036] The operating speed of the large circular kiln is 15 r / min.

[0037] The inner diameter of the feed tray for the PA6 30D / 34F SD DTY anti-mildew and antibacterial yarn is 6.8 inches. Each feed tray can provide a yarn feed rate of 102.3m / min. A total of 72 trays are used, and the yarn length is 14.5cm / 100 needles.

[0038] The inner diameter of the feed tray for the PA6 15D / 5F SD DTY yarn inlet is 4.6 inches. Each inlet can provide a yarn feed rate of 134.1m / min. A total of 18 trays are used, and the yarn length is 19cm / 100 needles.

[0039] The Spandex 30D spandex feeder has an inner diameter of 6.5 inches, provides a yarn feed rate of 45.9 m / min per feed line, and uses 72 feeders with a yarn length of 6.5 cm / 100 needles.

[0040] In the fabric produced by the above weaving method, PA6 30D / 34F SD DTY anti-mildew and antibacterial yarn accounts for 62% of the mass, PA6 15D / 5F SD DTY yarn accounts for 10% of the mass, and Spandex 30D spandex accounts for 28% of the mass.

[0041] The weaving method also includes dyeing and finishing processes, including the following steps: S1. Degreasing: Multi-tank water cleaning, first hot water wash then cold water wash, with the temperature decreasing from high to low.

[0042] Add the degreasing formula (low-foaming nonionic surfactant: isomeric tridecyl alcohol polyoxyethylene ether 1309, emulsifier: fatty alcohol polyoxyethylene ether AEO-7, dispersant: sodium polyacrylate, cosolvent / stabilizer: triethanolamine oleic acid soap, chelating agent: sodium citrate, polyether defoamer) to the degreasing machine tank. The degreasing agent is then sequentially passed through the six sealed tanks of the degreasing machine. The temperatures of the six sealed tanks are 80℃, 90℃, 75℃, 65℃, 55℃, and 30℃ respectively. The tension is 25N, and the machine speed is 20m / min. S2, Pre-set type: Pre-set mechanical width 147cm, pre-set temperature 198℃, added antioxidant, wind power 90%-95%, machine speed 21m / min, pre-set type; S3. Dyeing: Use acid dyes and dyeing auxiliaries (leveling agent, glacial acetic acid and anti-crease agent) in a high temperature and high pressure overflow dyeing machine at a temperature of 95℃ for 50 minutes. S4. Finishing: The finished product is finished with a machine width of 146cm. A hydrophilic softener (9424: 40G / L) is added, with an air force of 65% and a machine speed of 20m / min. Post-setting treatment is then performed. The finished product has a fabric width of 142cm and a weight of 285G / M2. S5. Inspection: Conduct quality inspection on the prepared finished product.

[0043] Comparative Example 1 Compared with Example 1, the only difference is that "PA6 15D / 5F SD DTY" in the raw materials is replaced with "PA6 20D / 24F FD DTY"; The inner diameter of the feed tray for the PA6 30D / 34F FD DTY anti-mildew and antibacterial yarn is 6.3 inches. Each feed tray can provide a yarn feed rate of 95m / min. A total of 72 trays are used, and the yarn length is 13.5cm / 100 needles.

[0044] The inner diameter of the feed tray for the PA6 20D / 24F FD DTY yarn inlet is 4.3 inches. Each inlet can provide a yarn feed rate of 127m / min. A total of 18 trays are used, and the yarn length is 18cm / 100 needles.

[0045] The Spandex 30D spandex feeder has an inner diameter of 5.5 inches, provides a yarn feed rate of 38.8 m / min per feed line, and uses 72 feeders with a yarn length of 5.5 cm / 100 needles.

[0046] All other conditions are the same as in Example 1.

[0047] In the fabric produced by the above weaving method, PA6 30D / 34F SD DTY anti-mildew and antibacterial yarn accounts for 61% of the mass, PA6 20D / 24F SD DTY yarn accounts for 14% of the mass, and Spandex 30D spandex accounts for 25% of the mass.

[0048] The finished fabric cover is 145cm long and weighs 260g / m2. The dyeing and finishing process is the same as in Example 1.

[0049] Comparative Example 2 Compared with Example 1, the only difference is that "Spandex 30D" in the raw materials is replaced with "Spandex 40D"; The PA6 20D / 24F SD DTY feeder has an inner diameter of 6.2 inches, and each feeder can provide a yarn feed rate of 98.8 m / min. A total of 64 feeders are used, and the yarn length is 14 cm / 100 needles.

[0050] The inner diameter of the feed tray for the PA6 30D / 34F SD DTY yarn inlet is 6.5 inches. Each inlet can provide a yarn feed rate of 144.6 m / min. A total of 16 trays are used, and the yarn length is 20.5 cm / 100 needles.

[0051] The Spandex 40D spandex feeder has an inner diameter of 6.1 inches, provides a yarn feed rate of 43.7 m / min per feed line, and uses 64 feed lines with a yarn length of 6.2 cm / 100 needles.

[0052] All other conditions are the same as in Example 1.

[0053] In the fabric produced by the above knitting method, PA6 20D / 24F SD DTY accounts for 41% of the mass, PA6 30D / 34F SD DTY yarn accounts for 23% of the mass, and Spandex 40D spandex accounts for 36% of the mass.

[0054] Finished fabric cover: 128cm, weight: 330g / m2; The dyeing and finishing process is the same as in Example 1.

[0055] Comparative Example 3 Compared with Example 1, the only difference is that "Spandex 30D" in the raw materials is replaced with "Spandex 20D"; and "PA6 15D / 5F DTY" in the raw materials is replaced with "PA6 20D / 24F SD DTY". The inner diameter of the feed tray for the PA6 30D / 34F SD DTY anti-mildew and antibacterial yarn is 7.3 inches. Each feed tray can provide a yarn feed rate of 105.4 m / min. A total of 72 trays are used, and the yarn length is 16.5 cm / 100 needles.

[0056] The inner diameter of the feed tray for the PA6 20D / 24F SD DTY yarn inlet is 5.2 inches. Each inlet can provide a yarn feed rate of 137.6 m / min. A total of 18 trays are used, and the yarn length is 19.5 cm / 100 needles.

[0057] The Spandex 20D spandex feeder has an inner diameter of 5.5 inches, provides a yarn feed rate of 40.2 m / min per feed line, and uses 72 feeders with a yarn length of 5.7 cm / 100 needles.

[0058] All other conditions are the same as in Example 1.

[0059] In the fabric produced by the above weaving method, PA6 30D / 34F SD DTY anti-mildew and antibacterial yarn accounts for 70% of the mass, PA6 20D / 24F SD DTY yarn accounts for 14% of the mass, and Spandex 20D spandex accounts for 16% of the mass.

[0060] The finished fabric cover is 140cm long and weighs 270g / m2. The dyeing and finishing process is the same as in Example 1.

[0061] Comparative Example 4 Compared with Example 1, the only difference is that the "PA6 30D / 34F SD DTY anti-mildew and antibacterial yarn" in the raw materials is replaced with "PA6 30D / 34F SD DTY anti-mildew and antibacterial yarn"; The inner diameter of the feed tray for the PA6 30D / 34F SD DTY anti-mildew and antibacterial yarn is 5.9 inches. Each feed tray can provide a yarn feed rate of 88m / min. A total of 72 trays are used, and the yarn length is 12.5cm / 100 needles.

[0062] The inner diameter of the feed tray for the PA6 15D / 5F SD DTY yarn inlet is 3.9 inches, and each inlet can provide a yarn feed rate of 113m / min. A total of 18 trays are used, and the yarn length is 16cm / 100 needles.

[0063] The Spandex 30D spandex feeder has an inner diameter of 3.5 inches, provides a yarn feed rate of 35m / min per feed line, and uses 72 feeders with a yarn length of 5cm / 100 needles.

[0064] All other conditions are the same as in Example 1.

[0065] In the fabric produced by the above weaving method, PA6 30D / 34F SD DTY anti-mildew and antibacterial yarn accounts for 64% of the mass, PA6 30D / 24F FD DTY yarn accounts for 10% of the mass, and Spandex 30D spandex accounts for 26% of the mass.

[0066] The finished fabric cover is 135cm long and weighs 240g / m2. The dyeing and finishing process is the same as in Example 1.

[0067] Comparative Example 5 Compared with Example 1, the only difference is that the raw material composition is " PA6 30D / 34F SD DTY anti-mildew and antibacterial yarn, 64 pieces; PA6 15D / 5F SD DTY, 16 pieces; Spandex 30D, 64 pieces", the rest are the same as in Example 1.

[0068] The inner diameter of the feed tray for the PA6 30D / 34F SD DTY anti-mildew and antibacterial yarn is 6.8 inches. Each feed tray can provide a yarn feed rate of 102.3m / min. A total of 72 trays are used, and the yarn length is 14.5cm / 100 needles.

[0069] The inner diameter of the feed tray for the PA6 15D / 5F SD DTY yarn inlet is 4.6 inches. Each inlet can provide a yarn feed rate of 134.1m / min. A total of 18 trays are used, and the yarn length is 19cm / 100 needles.

[0070] The Spandex 30D spandex feeder has an inner diameter of 6.5 inches, provides a yarn feed rate of 45.9 m / min per feed line, and uses 72 feeders with a yarn length of 6.5 cm / 100 needles.

[0071] In the fabric produced by the above weaving method, PA6 30D / 34F SD DTY anti-mildew and antibacterial yarn accounts for 62% of the mass, PA6 15D / 5F SD DTY yarn accounts for 10% of the mass, and Spandex 30D spandex accounts for 28% of the mass.

[0072] The finished fabric cover is 150cm long and weighs 250g / m2. The dyeing and finishing process is the same as in Example 1.

[0073] Effect Experiment The following performance tests were performed on Example 1: 1. Deodorizing performance Table 2

[0074] Table 3

[0075] Table 4

[0076] 2. Antibacterial properties Test sample: Fabric prepared in Example 1 of this invention Test method: Refer to GB / T20944.3-2008 Evaluation of antimicrobial properties of textiles - Part 3: Vibration method.

[0077] Table 5

[0078] Table 6

[0079] Table 7

[0080] Table 8

[0081] Table 9

[0082] Table 10

[0083] Remark: (1) W t The average concentration of viable bacteria (CFU / mL) in the flasks after 18 hours of shaking contact with the three control samples.

[0084] (2) W0: The average concentration of viable bacteria in the flasks of the three control samples after 0h contact time (CFU / mL).

[0085] (3) F: The growth value of the test bacteria in the control sample: F = lgW t -lgW0.

[0086] (4) Q t The average concentration of viable bacteria (CFU / mL) in the flasks after 18 hours of shaking contact with three antibacterial samples.

[0087] (5) The test control sample is 100% pure cotton cloth, provided by SGS laboratory.

[0088] (6) The sample sterilization method is UV sterilization for 30 minutes.

[0089] 3. Bacterial Odor Reduction Test Test method: AATCC TM211-2021 Test method for reduction of bacterial odor on antibacterial treated textiles.

[0090] Detected bacterial species: Proteus vulgaris ATCC 29905.

[0091] Table 11

[0092] Detected bacterial species: Staphylococcus saprophyticus ATCC 15305.

[0093] Table 12

[0094] Note: Control sample: 100% cotton fabric provided by SGS laboratory.

[0095] 4. Antibacterial effect of the fabric after washing 4.1 Test Method: GB / T 20944.3-2008, Oscillation Method; Sample sterilization method: UV lamp irradiation; Sample incubation time with bacterial culture: 18 hours; Control sample: 100% cotton fabric; Washing instructions for a household twin-tub washing machine, 150 washes; Bacterial concentration (CFU / mL): ATCC 6919 Propionibacterium acnes: 3.0 × 10⁻⁶ 5 ; BNCC 337308 Malassezia furfur: 3.1×10 5 .

[0096] The test results are shown in the table below: Table 13

[0097] 4.2 Test Methods Test basis and method: GB / T20944.2-2007 Absorption method; Sample sterilization method: UV lamp irradiation; Sample incubation time with bacterial culture: 18 hours; Control sample: 100% cotton fabric; Washing instructions for a household twin-tub washing machine, 150 washes; The test results are shown in the table below: Table 14

[0098] 5. Testing of mechanical performance parameters (1) Elongation at break (fabric tensile strength, elongation) Testing standard: ASTM LTD03; (2) Elastic recovery rate (resilience after stretching) Testing standard: ASTM LTD03; The specific test results are as follows: Table 15

[0099] The deodorization performance of Comparative Example 1 was tested, and the results are as follows: Table 16

[0100] The deodorization performance of Comparative Example 2 was tested, and the results are as follows: Table 17

[0101] The deodorization performance of Comparative Example 3 was tested, and the results are as follows: Table 18

[0102] The deodorization performance of Comparative Example 4 was tested, and the results are as follows: Table 19

[0103] The deodorization performance of Comparative Example 5 was tested, and the results are as follows: Table 20

[0104] Testing revealed that Comparative Example 1 did not possess functions such as odor prevention, mildew prevention, antibacterial properties, or mite prevention. Functional additives could be added during post-processing to achieve these effects. However, the functionality of post-processing would gradually weaken and become ineffective after repeated washing, making it difficult to achieve the long-lasting function of the original yarn and increasing energy consumption.

[0105] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, and is not intended to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention do not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A double-sided fabric with anti-mildew and antibacterial functions, characterized in that, In the double-sided fabric, PA6 30D / 34FSD DTY anti-mildew and antibacterial yarn accounts for 56%-70% of the weight, PA6 15D / 5F SD DTY yarn accounts for 8%-11% of the weight, and Spandex 30D spandex accounts for 22%-33% of the weight.

2. The double-sided fabric according to claim 1, characterized in that, In the double-sided fabric, PA6 30D / 34F SDDTY anti-mildew and antibacterial yarn accounts for 60%-65% of the weight, PA6 15D / 5F SDDTY yarn accounts for 9%-11% of the weight, and Spandex 30D spandex accounts for 25%-30% of the weight.

3. The double-sided fabric according to claim 2, characterized in that, In the double-sided fabric, PA6 30D / 34F SDDTY anti-mildew and antibacterial yarn accounts for 62% of the weight, PA6 15D / 5F SDDTY yarn accounts for 10% of the weight, and Spandex 30D spandex accounts for 28% of the weight.

4. A method for weaving a double-sided fabric according to any one of claims 1-3, characterized in that, The double-sided fabric is made by weaving anti-mildew and antibacterial yarn and ordinary yarn together on a double-sided circular knitting machine.

5. The weaving method according to claim 4, characterized in that, The knitting process includes the following steps: A 34” 44G double-needle bed circular knitting machine is used. The machine has 90 yarn feed lines, with 10 feed lines per cycle. Both the upper and lower needle beds have high-heel and low-heel needles, with the high-heel needles on the upper bed opposite the low-heel needles on the lower bed. Systems one and six use PA6 15D / 5F SD DTY yarn. In system one, the low-heel needles on both the upper and lower needle beds pick up the yarn, and in system six, the high-heel needles on both the upper and lower needle beds pick up the yarn. These two systems use semi-triangle knitting, without loops, to connect the outer and inner layers of the knitted fabric. Systems two, three, four, five, seven, eight, nine, and ten use PA6 30D / 34F SD DTY anti-mildew and antibacterial yarn, with a spandex lining. In 30D, each needle on either the upper or lower needle bed is half-emerged and knits the outer and inner layers of fabric under the control of the looping triangle. These eight looping systems knit two horizontal rows of loops for the outer and inner layers. The fabric is formed by connecting the first and sixth yarns together. Adjusting the inner diameter of the three conveyor discs of the circular knitting machine drives the yarn storage device via the conveyor belt, providing the corresponding yarn feed speed and guiding the corresponding yarn length for each looping system.

6. The weaving method according to claim 5, characterized in that, The PA6 30D / 34F SD DTY anti-mildew and antibacterial yarn described above can provide a yarn feed rate of 88-123m / min per thread, and the yarn length of the thread is 12.5-17.5cm / 100 needles.

7. The weaving method according to claim 5, characterized in that, The PA6 15D / 5F SD DTY yarn can provide a yarn feed rate of 120-138m / min per thread, and the thread length is 17-19.5cm / 100 needles.

8. The weaving method according to claim 5, characterized in that, The Spandex 30D spandex yarn can provide a yarn feed rate of 39-53m / min per thread, with a thread length of 5.5-7.5cm / 100 needles.

9. The weaving method according to claim 5, characterized in that, The operating speed of the circular knitting machine is 13-18 r / min; the weaving method also includes dyeing and finishing processes.

10. The application of the double-sided fabric according to any one of claims 1-3 or the weaving method according to any one of claims 4-9 in textile knitting.

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