A durable antibacterial functional fabric with inner hydrophilic and outer water-repellent and stain-resistant properties and a preparation method thereof

Abstract

The application provides a hydrophilic inner and water-repellent outer anti-fouling and durable antibacterial functional fabric and a preparation method thereof, and belongs to the technical field of knitted fabric preparation. The fabric is knitted into a double-sided structure on a double-sided weft-knitting machine. The inner layer of the fabric is made of nano-sized zinc oxide durable antibacterial polyester DTY fiber, the middle layer is made of high-temperature-resistant spandex as connecting yarn, and the surface layer is made of full-cotton tightly combed compact sirospun yarn. The fabric is knitted into a surface layer with a pearl ground eyelet effect and an inner layer with a double-sided plain weave structure. After the fabric is subjected to hydrophilic functional treatment, water-repellent and oil-repellent finishing auxiliary agents are added to the front surface through a coating method, so that the hydrophilic inner and water-repellent outer anti-fouling and durable antibacterial functional fabric is obtained, and is used for light sports or light business casual wear. The prepared fabric is light and thin, the surface layer has a texture, the whole fabric is elastic, the inner layer is hydrophilic and sweat-absorbing, the outer layer is water-repellent and anti-fouling, and the fabric has a durable antibacterial function.

Description

Technical Field

[0001] This invention relates to the field of knitted fabric preparation technology, specifically to a hydrophilic inner and water-repellent, stain-resistant, and durable antibacterial functional fabric and its preparation method. Background Technology

[0002] In the vast world of clothing, fabrics are incredibly diverse and constantly evolving. However, generally speaking, high-quality, high-end fabrics typically possess several characteristics, including comfortable wear, breathability and sweat absorption, good drape, elegant appearance, and soft touch.

[0003] For formal social occasions, clothing made of pure cotton, pure wool, pure silk, or pure linen is preferable. Garments made from these four natural fabrics are generally of higher quality. Wearing clothing made of pure leather is sometimes permissible. Common fabrics include woven and knitted fabrics. Woven fabrics, also known as machine-woven fabrics, are made by interlacing warp and weft yarns perpendicularly. Their basic weaves are plain, twill, and satin weave. Different woven fabrics are composed of these three basic weaves and their various variations. Common examples include chiffon, Oxford cloth, denim, twill, flannel, and damask. Knitted fabrics are made by using knitting needles to form loops from yarn or filaments, which are then interlocked. Due to the loop structure of knitted fabrics, they have a higher yarn content per unit length, resulting in good elasticity. Knitted fabrics are available in single-sided and double-sided varieties. The main types include single jersey, velour, birdeye fabric, and mersh fishnet.

[0004] In recent years, with the increase in light outdoor sports, the market has gradually recognized various outdoor knitted mesh fabrics with water-repellent outer layers. Simultaneously, the addition of zinc ions at the yarn ends for long-lasting antibacterial function fills a market gap. During outdoor activities, the human body releases a large amount of sweat, and exposure to wind and rain is inevitable. This requires outdoor clothing to not only protect against rain, snow, and dirt, but also to effectively wick away sweat. Water-repellent and stain-resistant outer fabrics, combined with moisture-wicking inner fabrics, combine two distinct and opposing functions to meet the dual functional requirements of waterproof and stain-resistant outer layers and moisture-wicking inner layers in sportswear. Summary of the Invention

[0005] The purpose of this invention is to propose an inner hydrophilic and outer water-repellent, stain-resistant, and durable antibacterial functional fabric and its preparation method, which has the effects of being lightweight and smooth, having good waterproof and stain-repellent properties, and having antibacterial function.

[0006] The technical solution of this invention is implemented as follows:

[0007] This invention provides a method for preparing a hydrophilic inner and water-repellent, stain-resistant, and durable antibacterial functional fabric, comprising the following steps: weaving, opening and rolling, fabric preparation, steaming, pre-setting, pretreatment, enzyme washing, dyeing, opening and water-pinching on a new opening machine, loose drying, intermediate inspection, setting, front coating, dry stretching, setting, and post-inspection.

[0008] As a further improvement of the present invention, the fabric is knitted on a double-sided weft knitting machine with a gauge of 24-28 needles / inch, the double-sided weft knitting machine using an alternating arrangement of No. 1 and No. 2 needles, and the knitting process is carried out as follows:

[0009] The first yarn loops with needles 1 and 2 on the upper needle plate. The first yarn is made of nano-grade zinc oxide long-lasting antibacterial polyester DTY fiber. The reverse side of the knitted fabric is obtained by repeatedly weaving the yarn.

[0010] The second yarn is looped with needles 1 and 2 of the lower needle cylinder. The second yarn is made of 30s-40s combed compact Sirospun cotton yarn. The knitted fabric is woven repeatedly to obtain the front side of the knitted fabric.

[0011] The third yarn is tucked together with the No. 2 needle of the upper needle cylinder and tucked together with the No. 2 needle of the lower needle cylinder. The third yarn is made of 20D-70D spandex. The process is repeated to knit the middle connecting layer of the knitted fabric.

[0012] The fourth yarn is looped with needles 1 and 2 on the upper needle plate. The fourth yarn is made of nano-grade zinc oxide durable antibacterial polyester DTY fiber. The reverse side of the knitted fabric is obtained by repeatedly weaving the yarn.

[0013] The fifth yarn is gathered with needle No. 1 of the lower needle cylinder and then looped with needle No. 2 of the lower needle cylinder. The fifth yarn is made of 30s-40s combed compact Sirospun cotton yarn. The knitted fabric is obtained by repeating the process.

[0014] The sixth yarn is knitted together with the No. 1 needle of the upper needle cylinder and knitted together with the No. 1 needle of the lower needle cylinder. The sixth yarn is made of 20D-70D spandex. The knitting process is repeated to obtain the middle connecting layer of the knitted fabric.

[0015] The seventh yarn is looped with needles 1 and 2 on the upper needle plate. The seventh yarn is made of nano-level zinc oxide durable antibacterial polyester DTY fiber. The reverse side of the knitted fabric is obtained by repeatedly weaving it.

[0016] The eighth yarn is looped with needles 1 and 2 of the lower needle cylinder. The eighth yarn is made of 30s-40s combed compact Sirospun cotton yarn. The knitted fabric is woven repeatedly to obtain the front side of the knitted fabric.

[0017] The ninth yarn is knitted together with the No. 2 needle of the upper needle cylinder and knitted together with the No. 2 needle of the lower needle cylinder. The ninth yarn is made of 20D-70D spandex. The process is repeated to knit the middle connecting layer of the knitted fabric.

[0018] The tenth yarn is looped with needles 1 and 2 on the upper needle plate. The tenth yarn is made of nano-level zinc oxide durable antibacterial polyester DTY fiber. The reverse side of the knitted fabric is obtained by repeatedly weaving the yarn.

[0019] The eleventh yarn is gathered with the No. 2 needle of the lower needle cylinder and looped with the No. 1 needle of the lower needle cylinder. The eleventh yarn is made of 30s-40s combed compact Siro spun cotton yarn. The knitted fabric is obtained by repeating the process.

[0020] The twelfth yarn is woven together with the No. 1 needle of the upper needle cylinder and the No. 1 needle of the lower needle cylinder. The twelfth yarn is made of 20D-70D spandex. The yarn is woven repeatedly to form the middle connecting layer of the knitted fabric.

[0021] As a further improvement of the present invention, the nano-grade zinc oxide durable antibacterial polyester DTY fiber has a fineness of 50D-100D and a fiber count of 72F-144F.

[0022] As a further improvement of the present invention, the steam temperature in the steaming step is 120-125℃, and the machine speed is 22-25m / min; the process of the pre-forming step is: temperature: 195-200℃, machine speed: 28-30m / min, overfeed: 25%-28%; the process of the enzyme washing step is: the fabric is placed in the enzyme washing solution at a bath ratio of 1:6-7 and treated at 40-60℃ for 40-80min, wherein the enzyme washing solution contains 1-3g / L of biological enzyme, 0.5-1.0g / L of sodium acetate and 0.5-1.0g / L of acetic acid, and the solvent is water; preferably, the biological enzyme is cellulase.

[0023] As a further improvement of the present invention, the pretreatment step is a moisture-wicking and quick-drying finishing process, which is as follows: add penetrant TF-107D 1-1.2g / L, refining agent TF-1291D 1-1.2g / L, caustic soda 1.8-2g / L, hydrogen peroxide 6-7g / L, and treat at 98-100℃ for 30-40min. After treatment, the fabric wicking height is greater than 15cm / 30min.

[0024] As a further improvement of the present invention, the process of the front coating step is as follows: the coating roller speed is 6.5-13m / min, the blade position is 20-25 degrees, the blade pressure is 2-5N, the sizing amount is 20%-60%, and the drying temperature is 110℃-150℃; the coating composition is 100-130g / L of TG-5263 and 6.5-20g / L of TH5000, and the coating finishing agent used is a polyurethane or polyvinylidene fluoride finishing agent.

[0025] As a further improvement of the present invention, the fabric setting formula in the setting step consists of the following raw materials in parts by weight: resin F-ECO 50-60G / L, penetrant 66-HK 1-1.2G / L, resin catalyst MGCL2 10-12G / L, hydrophilic softener 1030 120-30G / L, and hydrophilic softener 2F-PEB 10-20G / L.

[0026] As a further improvement of the present invention, the dry drawing step is performed at a temperature ≥150℃ and a time ≥90s.

[0027] This invention further protects the fabric obtained by the preparation method, characterized in that the fabric has a basis weight of 200-280 g / m². 2 The weight deviation is within 2%, the dimensional change after washing is within -3.5%, and the fabric thickness is 1-2.5mm.

[0028] As a further improvement of the present invention, the fabric has the characteristics of a water-repellent outer layer and a hydrophilic inner layer. The water repellency of the outer layer is 4-5*, and after 20 washes, the water repellency of the outer layer is 3-4*. The oil repellency of the outer layer is ≥5, and after 20 washes, the oil repellency of the outer layer is ≥3. The wicking height of the inner layer and after 20 washes are both greater than 12cm / 30min. The water penetration rate of the inner layer and after 20 washes are both less than 5mm. After 50 washes, the fabric has an antibacterial rate >90%.

[0029] The present invention has the following beneficial effects:

[0030] The lightweight functional sports fabric prepared by this invention is thin and smooth. It is woven using a double-sided weft knitting machine. During the knitting process, spandex is used as the connecting yarn between the two sides of the fabric, which can significantly reduce the fabric thickness and improve the fabric's elongation elasticity and recovery elasticity. It has good prospects for application in outdoor lightweight sports mesh fabrics. At the same time, antibacterial zinc ion fibers are introduced into the fabric to solve the discomfort and odor caused by excessive sweating during exercise. The coating treatment achieves breathability, water repellency and stain resistance of the surface layer, which can keep the fabric dry during outdoor sports.

[0031] The fabric prepared by this invention has a weight of 280 g / m². 2 The fabric is made of lightweight sportswear, and the coating process used in this design makes it soft, smooth, and breathable. This process provides some guidance for the coating process of natural cotton mesh fabrics. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a flowchart of the fabric preparation method of the present invention.

[0034] Figure 2 This is a partial schematic diagram of the fabric manufacturing process of the present invention.

[0035] Figure 3 This is a flowchart of the weaving process of the fabric of the present invention. Detailed Implementation

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Example 1

[0038] like Figure 1 As shown, the fabric preparation process follows the steps of weaving, opening and rolling, fabric preparation, steaming, pre-setting, pretreatment, enzyme washing, dyeing, opening and water squeezing on a new opening machine, loose drying, intermediate inspection, setting, front coating, dry stretching, setting, and post-inspection.

[0039] The fabric is knitted on a double-sided weft knitting machine with a gauge of 28 needles / inch. The double-sided weft knitting machine uses an alternating arrangement of size 1 and size 2 needles. Figure 2 As shown, the fabric is woven using the following method:

[0040] The first yarn loops with needles 1 and 2 on the upper needle plate. The first yarn loops are made of 75D / 96F nano-grade zinc oxide durable antibacterial polyester DTY fiber. The reverse side of the knitted fabric is obtained by repeatedly weaving.

[0041] The second yarn is looped with needles 1 and 2 of the lower needle cylinder. The second yarn is made of 40s combed compact Sirospun cotton yarn. The knitted fabric is woven repeatedly to obtain the front side of the knitted fabric.

[0042] The third yarn is tucked together with the No. 2 needle of the upper needle cylinder and tucked together with the No. 2 needle of the lower needle cylinder. The third yarn is made of 20D spandex. The process is repeated to knit the middle connecting layer of the knitted fabric.

[0043] The fourth yarn is woven into loops by needles No. 1 and No. 2 on the needle plate. The fourth yarn is made of 75D / 96F nano-grade zinc oxide durable antibacterial polyester DTY fiber. The reverse side of the knitted fabric is obtained by repeated weaving.

[0044] The fifth yarn is gathered with needle No. 1 of the lower needle cylinder and then looped with needle No. 2 of the lower needle cylinder. The fifth yarn is made of 40s combed compact Sirospun cotton yarn. The knitted fabric is woven repeatedly to obtain the front side of the knitted fabric.

[0045] The sixth yarn is knitted together with the No. 1 needle of the upper needle cylinder and knitted together with the No. 1 needle of the lower needle cylinder. The sixth yarn is made of 20D spandex. The knitting process is repeated to obtain the middle connecting layer of the knitted fabric.

[0046] The seventh yarn is looped with needles 1 and 2 on the upper needle plate. The seventh yarn is made of 75D / 96F nano-grade zinc oxide durable antibacterial polyester DTY fiber. The reverse side of the knitted fabric is obtained by repeatedly weaving it.

[0047] The eighth yarn is looped with needles 1 and 2 of the lower needle cylinder. The eighth yarn is made of 40s combed compact Sirospun cotton yarn. The knitted fabric is woven repeatedly to obtain the front side of the knitted fabric.

[0048] The ninth yarn is knitted together with the No. 2 needle of the upper needle cylinder and knitted together with the No. 2 needle of the lower needle cylinder. The ninth yarn is made of 20D spandex. The process is repeated to knit the middle connecting layer of the knitted fabric.

[0049] The tenth yarn is woven into loops by needles No. 1 and No. 2 on the needle plate. The tenth yarn is made of 75D / 96F nano-grade zinc oxide durable antibacterial polyester DTY fiber. The reverse side of the knitted fabric is obtained by repeated weaving.

[0050] The eleventh yarn is gathered with the No. 2 needle of the lower needle cylinder and then looped with the No. 1 needle of the lower needle cylinder. The eleventh yarn is made of 40s combed compact Sirospun cotton yarn. The knitted fabric is woven repeatedly to obtain the front side of the knitted fabric.

[0051] The twelfth yarn is woven together with the No. 1 needle of the upper needle cylinder and the No. 1 needle of the lower needle cylinder. The twelfth yarn is made of 20D spandex. The yarn is woven repeatedly to form the middle connecting layer of the knitted fabric.

[0052] After the knitted fabric is pre-shaped, it is dyed with polyester and cotton in a dyeing vat and then treated with hydrophilicity. The front coating is then applied on a coating machine. After coating, the fabric is dried and shaped in a flat width to obtain a lightweight sports fabric with water-repellent, stain-resistant and antibacterial functions.

[0053] The fabric face yarn is made of 40s combed compact Sirospun cotton yarn, the base yarn is made of 75D / 96F nano-grade zinc oxide durable antibacterial polyester DTY fiber, and the connecting yarn is made of 20D high temperature resistant spandex.

[0054] The fabric has a weight of 180g / m².2 The weight deviation is within 2%, the dimensional change after washing is controlled within -3.5%, and the fabric thickness is controlled within 2mm.

[0055] Example 2

[0056] The fabric is knitted on a double-sided weft knitting machine with a gauge of 28 needles / inch. The double-sided weft knitting machine uses an alternating arrangement of size 1 and size 2 needles. Figure 2 As shown, the fabric is woven using the following method:

[0057] The first yarn loops with needles 1 and 2 on the upper needle plate. The first yarn loops are made of 75D / 96F nano-grade zinc oxide durable antibacterial polyester DTY fiber. The reverse side of the knitted fabric is obtained by repeatedly weaving.

[0058] The second yarn is looped with needles 1 and 2 of the lower cylinder. The second yarn is made of 36s combed compact Sirospun cotton yarn. The knitted fabric is woven repeatedly to obtain the front side of the knitted fabric.

[0059] The third yarn is tucked together with the No. 2 needle of the upper needle cylinder and tucked together with the No. 2 needle of the lower needle cylinder. The third yarn is made of 30D spandex. The process is repeated to knit the middle connecting layer of the knitted fabric.

[0060] The fourth yarn is woven into loops by needles No. 1 and No. 2 on the needle plate. The fourth yarn is made of 75D / 96F nano-grade zinc oxide durable antibacterial polyester DTY fiber. The reverse side of the knitted fabric is obtained by repeated weaving.

[0061] The fifth yarn is gathered with needle No. 1 of the lower needle cylinder and looped with needle No. 2 of the lower needle cylinder. The fifth yarn is made of 36s combed compact Siro spun cotton yarn. The knitted fabric is woven repeatedly to obtain the front side of the knitted fabric.

[0062] The sixth yarn is knitted together with the No. 1 needle of the upper needle cylinder and knitted together with the No. 1 needle of the lower needle cylinder. The sixth yarn is made of 30D spandex. The knitting process is repeated to obtain the middle connecting layer of the knitted fabric.

[0063] The seventh yarn is looped with needles 1 and 2 on the upper needle plate. The seventh yarn is made of 75D / 96F nano-grade zinc oxide durable antibacterial polyester DTY fiber. The reverse side of the knitted fabric is obtained by repeatedly weaving it.

[0064] The eighth yarn is looped with needles 1 and 2 of the lower needle cylinder. The eighth yarn is made of 36s combed compact Sirospun cotton yarn. The knitted fabric is woven repeatedly to obtain the front side of the knitted fabric.

[0065] The ninth yarn is knitted together with the No. 2 needle of the upper needle cylinder and knitted together with the No. 2 needle of the lower needle cylinder. The ninth yarn is made of 30D spandex. The process is repeated to knit the middle connecting layer of the knitted fabric.

[0066] The tenth yarn is woven into loops by needles No. 1 and No. 2 on the needle plate. The tenth yarn is made of 75D / 96F nano-grade zinc oxide durable antibacterial polyester DTY fiber. The reverse side of the knitted fabric is obtained by repeated weaving.

[0067] The eleventh yarn is gathered with the No. 2 needle of the lower needle cylinder and looped with the No. 1 needle of the lower needle cylinder. The eleventh yarn is made of 36s combed compact Siro spun cotton yarn. The knitted fabric is woven repeatedly to obtain the front side of the knitted fabric.

[0068] The twelfth yarn is woven together with the No. 1 needle of the upper needle cylinder and the No. 1 needle of the lower needle cylinder. The twelfth yarn is made of 30D spandex. The yarn is woven repeatedly to form the middle connecting layer of the knitted fabric.

[0069] After the knitted fabric is pre-shaped, it is dyed with polyester and cotton in a dyeing vat and then treated with hydrophilicity. The front coating is then applied on a coating machine. After coating, the fabric is dried and shaped in a flat width to obtain a lightweight sports fabric with water-repellent, stain-resistant and antibacterial functions.

[0070] The fabric face yarn is made of 36s combed compact Sirospun cotton yarn, the base yarn is made of 75D / 96F nano-grade zinc oxide durable antibacterial polyester DTY fiber, and the connecting yarn is made of 30D high temperature resistant spandex.

[0071] The fabric has a weight of 210g / m². 2 The weight deviation is within 2%, the dimensional change after washing is controlled within -3.5%, and the fabric thickness is controlled within 2mm.

[0072] Example 3

[0073] The fabric is knitted on a 24-gauge double-sided weft knitting machine, which uses alternating No. 1 and No. 2 needles. Figure 2 As shown, the fabric is woven using the following method:

[0074] The first yarn loops with needles 1 and 2 on the upper needle plate. The first yarn loops are made of 75D / 96F nano-grade zinc oxide durable antibacterial polyester DTY fiber. The reverse side of the knitted fabric is obtained by repeatedly weaving.

[0075] The second yarn is looped with needles 1 and 2 of the lower needle cylinder. The second yarn is made of 30s combed compact Sirospun cotton yarn. The knitted fabric is woven repeatedly to obtain the front side of the knitted fabric.

[0076] The third yarn is tucked together with the No. 2 needle of the upper needle cylinder and tucked together with the No. 2 needle of the lower needle cylinder. The third yarn is made of 30D spandex. The process is repeated to knit the middle connecting layer of the knitted fabric.

[0077] The fourth yarn is woven into loops by needles No. 1 and No. 2 on the needle plate. The fourth yarn is made of 75D / 96F nano-grade zinc oxide durable antibacterial polyester DTY fiber. The reverse side of the knitted fabric is obtained by repeated weaving.

[0078] The fifth yarn is gathered with needle No. 1 of the lower needle cylinder and then looped with needle No. 2 of the lower needle cylinder. The fifth yarn is made of 30s combed compact Sirospun cotton yarn. The knitted fabric is woven repeatedly to obtain the front side of the knitted fabric.

[0079] The sixth yarn is knitted together with the No. 1 needle of the upper needle cylinder and knitted together with the No. 1 needle of the lower needle cylinder. The sixth yarn is made of 30D spandex. The knitting process is repeated to obtain the middle connecting layer of the knitted fabric.

[0080] The seventh yarn is looped with needles 1 and 2 on the upper needle plate. The seventh yarn is made of 75D / 96F nano-grade zinc oxide durable antibacterial polyester DTY fiber. The reverse side of the knitted fabric is obtained by repeatedly weaving it.

[0081] The eighth yarn is looped with needles 1 and 2 of the lower needle cylinder. The eighth yarn is made of 36s combed compact Sirospun cotton yarn. The knitted fabric is woven repeatedly to obtain the front side of the knitted fabric.

[0082] The ninth yarn is knitted together with the No. 2 needle of the upper needle cylinder and knitted together with the No. 2 needle of the lower needle cylinder. The ninth yarn is made of 30D spandex. The process is repeated to knit the middle connecting layer of the knitted fabric.

[0083] The tenth yarn is woven into loops by needles No. 1 and No. 2 on the needle plate. The tenth yarn is made of 75D / 96F nano-grade zinc oxide durable antibacterial polyester DTY fiber. The reverse side of the knitted fabric is obtained by repeated weaving.

[0084] The eleventh yarn is gathered with the No. 2 needle of the lower needle cylinder and then looped with the No. 1 needle of the lower needle cylinder. The eleventh yarn is made of 30s combed compact Sirospun cotton yarn. The knitted fabric is woven repeatedly to obtain the front side of the knitted fabric.

[0085] The twelfth yarn is woven together with the No. 1 needle of the upper needle cylinder and the No. 1 needle of the lower needle cylinder. The twelfth yarn is made of 30D spandex. The yarn is woven repeatedly to form the middle connecting layer of the knitted fabric.

[0086] After the knitted fabric is pre-shaped, it is dyed with polyester and cotton in a dyeing vat and then treated with hydrophilicity. The front coating is then applied on a coating machine. After coating, the fabric is dried and shaped in a flat width to obtain a lightweight sports fabric with water-repellent, stain-resistant and antibacterial functions.

[0087] The fabric face yarn is made of 30s combed compact Sirospun cotton yarn, the base yarn is made of 75D / 96F nano-grade zinc oxide durable antibacterial polyester DTY fiber, and the connecting yarn is made of 30D high temperature resistant spandex.

[0088] The fabric has a weight of 240g / m².2 The weight deviation is within 2%, the dimensional change after washing is controlled within -3.5%, and the fabric thickness is controlled within 2mm.

[0089] Test Example 1: Antibacterial Performance Test

[0090] The fabrics prepared in Examples 1-3 were tested for antibacterial properties in accordance with the FZ / T73023-2006 testing standard. The results showed that after 50 washes, the antibacterial ability of all fabrics remained above 90%, reaching the national AAA-level antibacterial standard.

[0091] Test Example 2: The water repellency and stain resistance performance of the fabric prepared in Implementation 1 were tested. The test results are shown in Table 1. The results show that the prepared fabric has the functions of hydrophilic and sweat-absorbing inner layer and water-repellent and stain-resistant outer layer.

[0092] Table 1

[0093]

[0094] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for preparing a durable anti-fouling and anti-bacterial functional fabric with inner hydrophilic and outer water-repellent, characterized in that, The process includes the following steps: weaving, opening and rolling, fabric preparation, steaming, pre-setting, pretreatment, enzyme washing, dyeing, opening and water squeezing on a new opening machine, loose drying, intermediate inspection, setting, front coating, dry stretching, setting, and post-inspection. The fabric is knitted on a double-sided weft knitting machine with a gauge of 24-28 needles / inch. The double-sided weft knitting machine uses an alternating arrangement of size 1 and size 2 needles, and the knitting process is carried out as follows: The first yarn loops with needles 1 and 2 on the upper needle plate. The first yarn uses nano-grade zinc oxide long-lasting antibacterial polyester DTY fiber. The reverse side of the knitted fabric is obtained by repeatedly weaving the yarn. The second yarn is looped with needles 1 and 2 of the lower cylinder. The second yarn is made of 30s-40s combed compact Sirospun cotton yarn. The knitting process is repeated to obtain the front side of the knitted fabric. The third yarn is tucked together with the No. 2 needle of the upper cylinder and the No. 2 needle of the lower cylinder. The third yarn is made of 20D-70D spandex. The process is repeated to knit the middle connecting layer of the knitted fabric. The fourth yarn loops with needles 1 and 2 on the upper needle plate. The fourth yarn uses nano-level zinc oxide long-lasting antibacterial polyester DTY fiber, and the reverse side of the knitted fabric is obtained by repeated weaving. The fifth yarn is gathered with needle No. 1 of the lower needle cylinder and then formed into a loop with needle No. 2 of the lower needle cylinder. The fifth yarn is made of 30s-40s combed compact Sirospun cotton yarn. The knitting process is repeated to obtain the front side of the knitted fabric. The sixth yarn is knitted together with the No. 1 needle of the upper cylinder and the No. 1 needle of the lower cylinder. The sixth yarn is made of 20D-70D spandex. The knitting process is repeated to form the middle connecting layer of the knitted fabric. The seventh yarn loops with needles 1 and 2 on the upper needle plate. The seventh yarn uses nano-level zinc oxide long-lasting antibacterial polyester DTY fiber, and the reverse side of the knitted fabric is obtained by repeated weaving. The eighth yarn is looped with needles 1 and 2 of the lower needle cylinder. The eighth yarn is made of 30s-40s combed compact Sirospun cotton yarn. The knitted fabric is woven repeatedly to obtain the front side of the knitted fabric. The ninth yarn is knitted together with the No. 2 needle of the upper needle cylinder and knitted together with the No. 2 needle of the lower needle cylinder. The ninth yarn is made of 20D-70D spandex. The process is repeated to knit the middle connecting layer of the knitted fabric. The tenth yarn is looped with needles 1 and 2 on the upper needle plate. The tenth yarn is made of nano-level zinc oxide long-lasting antibacterial polyester DTY fiber. The reverse side of the knitted fabric is obtained by repeatedly weaving it. The eleventh yarn is gathered with the No. 2 needle of the lower needle cylinder and then looped with the No. 1 needle of the lower needle cylinder. The eleventh yarn is made of 30s-40s combed compact Siro spun cotton yarn. The knitting process is repeated to obtain the front side of the knitted fabric. The twelfth yarn is knitted together with the No. 1 needle of the upper cylinder and the No. 1 needle of the lower cylinder. The twelfth yarn is made of 20D-70D spandex. The knitting process is repeated to form the middle connecting layer of the knitted fabric. The steam temperature in the steaming step is 120-125℃, and the machine speed is 22-25m / min; the process of the pre-setting step is: temperature: 195-200℃, machine speed: 28-30m / min, overfeed: 25%-28%; the process of the enzyme washing step is: the fabric is arranged in the enzyme washing solution at a bath ratio of 1:6-7 and treated at 40-60℃ for 40-80min, wherein the enzyme washing solution contains 1-3g / L biological enzyme, 0.5-1.0g / L sodium acetate and 0.5-1.0g / L acetic acid, and the solvent is water; the biological enzyme is a fiber enzyme; The pretreatment step is moisture absorption and quick drying finishing, and the pretreatment process is: adding penetrating agent TF-107D 1-1.2g / L, refining agent TF-1291D 1-1.2g / L, flake alkali 1.8-2g / L, hydrogen peroxide 6-7g / L, and treating at 98-100℃ for 30-40min, so that the wicking height of the fabric after treatment is greater than 15cm / 30min; The process of the front coating step is: the speed of the coating roller is 6.5-13m / min, the knife position is 20-25 degrees, the knife pressure is 2-5N, the sizing amount is 20%-60%, and the drying temperature is 110℃-150℃; the coating composition is 100-130g / L of TG-5263 and 6.5-20g / L of TH5000, and the coating finishing agent used is a polyurethane or polyvinylidene fluoride finishing agent.

2. The production method according to claim 1, characterized by, The fineness of the nanoscale zinc oxide durable antibacterial polyester DTY fiber is 50D-100D, and the number of fibers is 72F-144F.

3. The preparation method according to claim 1, characterized in that, The fabric setting formula in the setting step is composed of the following raw materials in parts by weight: resin F-ECO 50-60G / L, penetrating agent 66-HK 1-1.2G / L, resin catalyst MGCL2 10-12G / L, hydrophilic softener 1030 120-30G / L, and hydrophilic softener 2F-PEB 10-20G / L.

4. The method of claim 1, wherein, The process of the dry drawing step is: temperature≥150℃, and time≥90s.

5. A fabric prepared according to the process of any one of claims 1 to 4, characterized in that, The fabric has a weight of 200-280 g / m 2 The weight deviation is within 2%, the water washing dimensional change is within -3.5%, and the fabric thickness is 1-2.5 mm.

6. The fabric of claim 5, wherein, The fabric has the characteristics of water-repellent outer layer and hydrophilic inner layer, the water-repellent property of the outer layer is 4-5*, the water-repellent property of the outer layer after 20 times of washing is 3-4*, the oil-repellent property of the outer layer is≥5, and the oil-repellent property of the outer layer after 20 times of washing is≥3; the wicking height of the inner layer and the wicking height of the inner layer after 20 times of washing are both greater than 12cm / 30min; the moisture permeation rate of the inner layer and the moisture permeation rate of the inner layer after 20 times of washing are both less than 5mm; the antibacterial property of the fabric after 50 times of washing is >90%.

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