High-air-permeability linen retro satin woven fabric and preparation process thereof

Abstract

The application relates to the technical field of fabric manufacturing, in particular to a high-breathability linen retro satin woven fabric and a preparation process thereof, the fabric comprises, in terms of weight fractions, 90-100 parts of linen fibers, 20-25 parts of polyester fibers, 10-15 parts of bamboo charcoal fibers, 5-10 parts of nano-chitin fibers and 4-6 parts of modified pineapple leaf fibers. The preparation method comprises the following steps: preparing warp yarns and weft yarns, carrying out softener superposition and high-temperature yarn steaming on the warp yarns and the weft yarns, and finally obtaining a satin fabric through satin weaving; each component improves the breathability and wear resistance of the satin fabric, the yarn damage is reduced through the preparation method, the structure and properties of the yarn are stabilized, and therefore the performance of the satin fabric is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of fabric manufacturing, and particularly relates to a high-breathability linen retro satin woven fabric and a preparation process thereof. BACKGROUND

[0002] The warp yarn or weft yarn of the satin fabric forms some separate warp or weft points which are not connected with each other in the fabric, and the fabric surface is almost entirely covered by the warp yarn or weft yarn, the surface looks like a diagonal line, but is not as obvious as the diagonal line of the twill fabric, the warp and weft yarns are interwoven less times, and the satin fabric has the characteristics of smooth and bright appearance, soft texture and the like. However, the floating long yarns in the satin fabric are easy to be abraded, fuzzy or hooked, and the strength of the fabric is lower than that of the plain fabric and the twill fabric.

[0003] The linen has high strength, and the linen has high breathability and is often used for summer clothes, and there are many mosquitoes in summer, and the mosquitoes carry many bacteria, therefore, the summer clothes need to have good breathability, and the anti-mosquito and antibacterial effects need to be improved.

[0004] In order to solve the above problems, the application decides to solve the problems by certain technology. SUMMARY

[0005] In order to solve the above problems, the application provides a high-breathability linen retro satin woven fabric and a preparation process thereof.

[0006] The high-breathability linen retro satin woven fabric comprises the following components in parts by weight:

[0007] Linen fiber: 90-100 parts;

[0008] Polyester fiber: 20-25 parts;

[0009] Bamboo charcoal fiber: 10-15 parts;

[0010] Nano-chitin fiber: 5-10 parts;

[0011] Modified pineapple leaf fiber: 4-6 parts.

[0012] Further, the preparation method of the nano-chitin fiber is as follows:

[0013] The chitin is soaked in a heptanoic acid solution with a molar concentration of 5-10, the soaking treatment temperature is 80-120 DEG C, and the soaking treatment time is 1-4 h, so as to obtain heptanoic acid treated chitin;

[0014] The pH of the heptanoic acid treated chitin is adjusted to 9.5-10, and the chitin is subjected to one microfluidization homogenization treatment at a homogenization pressure of 80-100 MPa by using a dynamic ultra-high pressure microfluidizer, and the heptanoic acid treated chitin is subjected to repeated one microfluidization homogenization treatment for 2-4 times, and the obtained product is subjected to solid-liquid separation and drying to obtain a first product, and the first product is subjected to one soaking in a mosquito repellent liquid at a temperature of 40-50℃ for 30-40 min, and the solid-liquid ratio is 1:6-9;

[0015] The pH of the one-soaked first product is adjusted to 9.5-10, and the first product is subjected to two microfluidization homogenization treatment at a homogenization pressure of 120-160 MPa by using a dynamic ultra-high pressure microfluidizer, and the heptanoic acid treated chitin is subjected to repeated two microfluidization homogenization treatment for 2-4 times, and the obtained product is subjected to solid-liquid separation and drying to obtain a second product, and the second product is subjected to two soaking in a mosquito repellent liquid concentrated to 70-80% of the original concentration and at a temperature of 20-30℃ with the same solid-liquid ratio for 10-20 min, and the nanochitin fibers are obtained after washing and drying.

[0016] Description: Chitin itself is a biological macromolecule that is difficult to dissolve in water. By treating chitin with heptanoic acid, more carboxyl groups can be introduced, thereby increasing its hydrophilicity and making chitin more easily dispersed and dissolved in water. Microfluidization homogenization treatment can reduce the diameter of chitin fibers to the nanometer level. This size effect can significantly improve the strength and flexibility of the fibers, thereby enhancing their reinforcing effect in satin fabric. Soaking in mosquito repellent liquid after microfluidization homogenization treatment allows the mosquito repellent liquid to adhere to the surface of the chitin fibers, thereby improving the mosquito repellent and antibacterial effect.

[0017] Further, the mosquito repellent liquid comprises, by mass percentage: 5-10% lavender essential oil, 10-15% linalyl acetate, and the balance of bamboo vinegar.

[0018] Description: The main components of lavender essential oil include terpenoids such as terpenes and terpenols, which are harmless to the human body but have a strong repelling effect on mosquitoes; linalyl acetate also contains terpenes and linalyl alcohol, which contribute to mosquito repellency and antibacterial properties; bamboo vinegar is a liquid produced by the fermentation of bamboo and contains various organic acids and minerals, which have good antibacterial and preservative effects.

[0019] Further, the preparation method of the modified pineapple leaf fiber is as follows:

[0020] Degumming treatment: The degummed pineapple leaf fibers are placed in a supercritical fluid treatment device and subjected to degumming treatment at a pressure of 15-20 MPa and a temperature of 105-115℃ for 15-30 min;

[0021] Modification treatment: add lye to the pineapple leaf fiber until fully immersed and mix evenly, then heat to 32-34℃ and vacuum soak for 20-25min, after vacuum soaking, filter and wash the residue to neutral, then add a 0.25-0.35% concentration of dialdehyde carboxymethyl cellulose sodium solution to the residue until fully immersed and mix evenly, filter again and wash the residue to neutral, then place it in a drying oven with a temperature of 80-90℃, dry, then stretch and refine, the stretching ratio is 1.9-2.1 times, then spray dicyclopentadiene on the surface of the stretched and refined pineapple leaf fiber, the spraying amount is 0.05-0.07g / mm 2 Finally, the modified pineapple leaf fiber is obtained.

[0022] Explanation: The supercritical fluid treatment device can selectively remove specific components such as gum and wax from the fiber without damaging the fiber itself, reducing fiber damage; the lye modification increases the hydrophilicity of the pineapple leaf fiber, improving its dyeing performance and compatibility with other substances; the dialdehyde carboxymethyl cellulose sodium solution modification improves the tensile strength, wear resistance and other mechanical properties of the pineapple leaf fiber by chemical bonding; stretching and refining the pineapple leaf fiber increases its contact area to fill dicyclopentadiene, allowing it to penetrate the fiber and react with the fiber molecules, enhancing the fiber's flexibility, flame resistance and antibacterial properties, and improving the self-healing properties of the modified pineapple leaf fiber.

[0023] Further, the diameter of the flax fiber is 15-17μm, the diameter of the polyester fiber and the bamboo charcoal fiber is 10-12μm, the diameter of the nanochitin fiber is 800-900nm, and the diameter of the modified pineapple leaf fiber is 1-3μm.

[0024] Explanation: Generally, fibers with smaller diameters, especially nanoscale fibers such as nanochitin fibers, have better air permeability due to their small diameter and numerous gaps; in addition, the diameter of the modified pineapple leaf fiber is also smaller than that of the flax fiber and the polyester fiber, which also helps to improve the air permeability of the fabric.

[0025] The preparation process of any one of the above high-air-permeability flax retro-satin woven fabrics includes the following steps:

[0026] S1, mix 70-80% of the total mass of flax fiber, bamboo charcoal fiber and nanochitin fiber as warp yarn, and mix the remaining flax fiber, polyester fiber and modified pineapple leaf fiber as weft yarn;

[0027] S2, the warp and weft yarns are treated with a softener at a temperature of 90-100 DEG C under 0.12-0.14 MPa for 3-5 min, and after the treatment, the yarns are steamed at 75-85 DEG C under 0.2-0.3 MPa for 30-40 min; then the warp and weft yarns are treated with a softener at a temperature of 65-75 DEG C under 0.22-0.25 MPa for 4-6 min, and after the treatment, the yarns are steamed at 105-110 DEG C under 0.5-0.6 MPa for 50-60 min;

[0028] S3, the warp and weft yarns obtained in step S2 are subjected to satin weaving to obtain eight satin fabrics of the three-fly type.

[0029] Further, the linear density of the warp yarns is 18-20 tex, and the linear density of the weft yarns is 15-17 tex.

[0030] Description: Lower linear density can increase the air permeability of the satin fabric, making it more suitable for hot climates or sports occasions; yarns with higher linear density are usually stronger and more durable because they contain more fibers, which means that the satin fabric can be used for a longer time and is more resistant to stretching or tearing, so the warp yarns are selected to be thicker to bear more tension and weight.

[0031] Further, the softener is a hydroxyl-terminated polysiloxane emulsion.

[0032] Description: The hydroxyl-terminated polysiloxane emulsion not only makes the fabric have good softness and smoothness, but also gives the non-woven fabric a shiny, wear-resistant, elastic, stain-resistant, wrinkle-resistant, and smooth style.

[0033] Further, in step S3, the satin fabric is subjected to desizing treatment at a temperature of 55-60 DEG C, and the desizing enzyme has a concentration of 9-10 g / L, and the desizing enzyme is BF-7658.

[0034] Description: The desizing treatment increases the retro effect of the satin fabric.

[0035] Compared with existing satin fabrics, the satin fabric of the present application has the following advantages:

[0036] (1) The linen fibers in the satin fabric have moisture absorption and air permeability, and have good wrinkle resistance and strength, so that the satin fabric can maintain good form stability and durability during use; the polyester fibers have good elasticity and dimensional stability and excellent wear resistance, so that the satin fabric has better durability and easy care characteristics; the bamboo charcoal fibers have natural antibacterial and deodorizing properties, which can impart additional hygiene performance to the fabric; the nano chitin fibers have excellent mosquito repellency and antibacterial properties, which can further improve the antibacterial performance of the fabric; the modified pineapple leaf fibers improve the strength and self-healing performance of the fabric.

[0037] (2) In the preparation of the satin fabric, the yarn is rinsed with a softener, and high-temperature yarn steaming is performed after rinsing, which can improve the structural stability of the yarn and help stabilize the twist of the yarn, reduce the untwisting phenomenon during weaving, thereby improving the dimensional stability of the fabric; softener rinsing and high-temperature yarn steaming can reduce yarn wear and breakage during weaving, thereby improving the durability of the fabric, and softener rinsing and high-temperature yarn steaming both help reduce static electricity in the yarn; and using lower temperature yarn steaming first allows the yarn to gradually adapt to temperature changes, avoiding yarn damage or breakage due to sudden temperature changes, and helping to remove impurities and undesirable components from the yarn, and high-temperature yarn steaming can further stabilize the structure and properties of the yarn, thereby improving the overall quality and performance of the yarn. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 is the comparison chart of the results of the present invention exploration 1;

[0039] Figure 2 is the comparison chart of the results of the present invention exploration 2;

[0040] Figure 3 is the comparison chart of the results of the present invention exploration 3. DETAILED DESCRIPTION

[0041] To further illustrate the methods adopted by the present invention and the effects achieved, the technical solutions of the present invention will be described clearly and completely below in conjunction with experiments.

[0042] Example 1: A high-air-permeability linen retro satin woven fabric, comprising, by weight fraction:

[0043] Linen fibers: 95 parts;

[0044] Polyester fibers: 23 parts;

[0045] Bamboo charcoal fibers: 13 parts;

[0046] Nano chitin fibers: 8 parts;

[0047] Modified pineapple leaf fibers: 5 parts;

[0048] The diameter of the flax fiber is 16 μm, the diameter of the polyester fiber and the bamboo charcoal fiber is 11 μm, the diameter of the nano-chitin fiber is 850 nm, and the diameter of the modified pineapple leaf fiber is 2 μm

[0049] The preparation method of the nano-chitin fiber is as follows:

[0050] The chitin is soaked in a heptanoic acid solution with a molar concentration of 8 mol / L, the soaking treatment temperature is 100℃, and the soaking treatment time is 2.5 h, to obtain heptanoic acid treated chitin;

[0051] The pH of the heptanoic acid treated chitin is adjusted to 9.5, and the heptanoic acid treated chitin is subjected to one-time microfluidization homogenization treatment at a homogenization pressure of 90 MPa by using a dynamic ultra-high pressure microjet machine, and the heptanoic acid treated chitin is subjected to repeated one-time microfluidization homogenization treatment for 3 times, the obtained product is subjected to solid-liquid separation and drying, to obtain a one-time product, and the one-time product is soaked in a mosquito repellent liquid at a temperature of 45℃ for 35 min, and the solid-liquid ratio is 1:8;

[0052] The pH of the one-time product after the one-time soaking is adjusted to 10, and the one-time product is subjected to two-time microfluidization homogenization treatment at a homogenization pressure of 140 MPa by using a dynamic ultra-high pressure microjet machine, and the heptanoic acid treated chitin is subjected to repeated two-time microfluidization homogenization treatment for 3 times, the obtained product is subjected to solid-liquid separation and drying, to obtain a two-time product, and the two-time product is soaked in a mosquito repellent liquid concentrated to an original concentration of 75% and at a temperature of 25℃ for 15 min at the same solid-liquid ratio, and the nano-chitin fiber is obtained after washing and drying;

[0053] The mosquito repellent liquid comprises, by mass percentage, 8% of lavender essential oil, 13% of linaloe essential oil, and the balance of bamboo vinegar;

[0054] The preparation method of the modified pineapple leaf fiber is as follows:

[0055] Degumming treatment: the pineapple leaf fiber is placed in a supercritical fluid treatment device, and is subjected to degumming treatment at a pressure of 18 MPa and a temperature of 110℃ for 18 min;

[0056] Modification treatment: after the degumming treatment, alkali solution (KON solution with a mass fraction of 10%) is added to the pineapple leaf fiber until the pineapple leaf fiber is completely immersed and uniformly mixed, and then the temperature is raised to 33℃ and the pineapple leaf fiber is vacuum soaked at -0.08 MPa for 23 min, after the vacuum soaking, the filter residue is washed to be neutral, then a dialdehyde carboxymethyl cellulose sodium aqueous solution with a concentration of 0.30% is added to the filter residue until the filter residue is completely immersed and uniformly mixed, and then the filter residue is filtered again and washed to be neutral, and then the filter residue is placed in a drying box and the temperature is adjusted to 85℃, and after drying, the filter residue is subjected to drawing and refining, and the drawing multiple is 2.0, and then the drawing and refining pineapple leaf fiber is sprayed with dicyclopentadiene, and the spraying amount is 0.06 g / mm 2Finally, the modified pineapple leaf fiber is obtained.

[0057] Embodiment 2: A preparation process of a high-air-permeability linen retro satin woven fabric as described in Embodiment 1, comprising the following steps:

[0058] S1, 75% of the total mass of linen fibers, bamboo charcoal fibers and nano-chitin fibers are blended as warp yarns, and the remaining linen fibers, polyester fibers and modified pineapple leaf fibers are blended as weft yarns; the linear density of the warp yarns is 19 tex, and the linear density of the weft yarns is 16 tex;

[0059] S2, the warp yarns and weft yarns are treated by circulating washing with a softener at a temperature of 95 DEG C under 0.13 MPa for 4 min, and after washing, the yarns are high-temperature steamed at 80 DEG C under 0.25 MPa for 35 min; then the warp yarns and weft yarns are treated by circulating washing with a softener cooled to 70 DEG C under 0.24 MPa for 5 min, and after washing, the yarns are high-temperature steamed at 108 DEG C under 0.55 MPa for 55 min; the softener is a hydroxyl-terminated polysiloxane emulsion;

[0060] S3, the warp yarns and weft yarns obtained in step S2 are satin woven to obtain an eight-leaf three-fly type satin fabric, and the satin fabric is desized, the desizing temperature is 58 DEG C, the desizing enzyme concentration is 9.5 g / L, and the desizing enzyme is BF-7658.

[0061] Embodiment 3: The difference between this embodiment and Embodiment 1 is that it comprises, by weight fraction:

[0062] Linen fibers: 90 parts;

[0063] Polyester fibers: 25 parts;

[0064] Bamboo charcoal fibers: 15 parts;

[0065] Nano-chitin fibers: 10 parts;

[0066] Modified pineapple leaf fibers: 6 parts.

[0067] Embodiment 4: The difference between this embodiment and Embodiment 1 is that it comprises, by weight fraction:

[0068] Linen fibers: 100 parts;

[0069] Polyester fibers: 20 parts;

[0070] Bamboo charcoal fibers: 10 parts;

[0071] Nano-chitin fibers: 5 parts;

[0072] Modified pineapple leaf fibers: 4 parts.

[0073] Example 5: The difference between this example and Example 1 is that the diameter of the flax fiber is 15 μm, the diameter of the polyester fiber and the diameter of the bamboo charcoal fiber are both 10 μm, the diameter of the nano-chitin fiber is 800 nm, and the diameter of the modified pineapple leaf fiber is 1 μm.

[0074] Example 6: The difference between this example and Example 1 is that the diameter of the flax fiber is 17 μm, the diameter of the polyester fiber and the diameter of the bamboo charcoal fiber are both 12 μm, the diameter of the nano-chitin fiber is 900 nm, and the diameter of the modified pineapple leaf fiber is 3 μm.

[0075] Example 7: The difference between this example and Example 1 is that the chitin is soaked in a heptanoic acid solution with a molar concentration of 5, the soaking treatment temperature is 80°C, and the soaking treatment time is 1 h, to obtain heptanoic acid treated chitin.

[0076] Example 8: The difference between this example and Example 1 is that the chitin is soaked in a heptanoic acid solution with a molar concentration of 10, the soaking treatment temperature is 120°C, and the soaking treatment time is 4 h, to obtain heptanoic acid treated chitin.

[0077] Example 9: The difference between this example and Example 1 is that the pH of the heptanoic acid treated chitin is adjusted to 9.5, and the first microfluidization homogenization treatment is performed on the heptanoic acid treated chitin by a dynamic ultra-high pressure microfluidizer at a homogenization pressure of 80 MPa, and the first microfluidization homogenization treatment is repeated twice on the heptanoic acid treated chitin; then the pH of the first product after the first soaking is adjusted to 9.5, and the second microfluidization homogenization treatment is performed on the heptanoic acid treated chitin by a dynamic ultra-high pressure microfluidizer at a homogenization pressure of 140 MPa, and the second microfluidization homogenization treatment is repeated twice on the heptanoic acid treated chitin.

[0078] Example 10: The difference between this example and Example 1 is that the pH of the heptanoic acid treated chitin is adjusted to 9.5, and the first microfluidization homogenization treatment is performed on the heptanoic acid treated chitin by a dynamic ultra-high pressure microfluidizer at a homogenization pressure of 120 MPa, and the first microfluidization homogenization treatment is repeated four times on the heptanoic acid treated chitin; then the pH of the first product after the first soaking is adjusted to 10, and the second microfluidization homogenization treatment is performed on the heptanoic acid treated chitin by a dynamic ultra-high pressure microfluidizer at a homogenization pressure of 160 MPa, and the second microfluidization homogenization treatment is repeated four times on the heptanoic acid treated chitin.

[0079] Example 11: The difference between this example and Example 1 is that the first product is soaked in the mosquito repellent liquid at a temperature of 40°C for 30 min, and the solid-liquid ratio is 1:6; and the second product is soaked in the mosquito repellent liquid which is concentrated to 70% of the original concentration and at a temperature of 20°C for 10 min with the same solid-liquid ratio.

[0080] Example 12: The difference between this example and Example 1 is that the primary product is soaked in the mosquito repellent liquid once at a temperature of 50°C for 40 min with a solid-liquid ratio of 1:9; and the secondary product is soaked in the mosquito repellent liquid again at a temperature of 30°C for 20 min with the same solid-liquid ratio, wherein the mosquito repellent liquid is concentrated to 80% of the original concentration.

[0081] Example 13: The difference between this example and Example 1 is that the mosquito repellent liquid comprises, by mass percentage, 5% of lavender essential oil, 10% of linaloe essential oil, and the balance of bamboo vinegar.

[0082] Example 14: The difference between this example and Example 1 is that the mosquito repellent liquid comprises, by mass percentage, 10% of lavender essential oil, 15% of linaloe essential oil, and the balance of bamboo vinegar.

[0083] Example 15: The difference between this example and Example 1 is that the pineapple leaf fiber is put into a supercritical fluid treatment device, and is degummed at a pressure of 15 MPa and a temperature of 105°C for 15 min.

[0084] Example 16: The difference between this example and Example 1 is that the pineapple leaf fiber is put into a supercritical fluid treatment device, and is degummed at a pressure of 20 MPa and a temperature of 115°C for 30 min.

[0085] Example 17: The difference between this example and Example 1 is that after the alkali solution is added to the pineapple leaf fiber to completely immerse and mix uniformly, the temperature is raised to 32°C and vacuum soaking is performed for 20 min.

[0086] Example 18: The difference between this example and Example 1 is that after the alkali solution is added to the pineapple leaf fiber to completely immerse and mix uniformly, the temperature is raised to 34°C and vacuum soaking is performed for 25 min.

[0087] Example 19: The difference between this example and Example 1 is that after the aqueous solution of dialdehyde carboxymethyl cellulose sodium with a concentration of 0.25% is added to the filter residue to completely immerse and mix uniformly, the filter residue is filtered again and washed to neutral, and then placed in a drying box to adjust the temperature to 80°C.

[0088] Example 20: The difference between this example and Example 1 is that after the aqueous solution of dialdehyde carboxymethyl cellulose sodium with a concentration of 0.35% is added to the filter residue to completely immerse and mix uniformly, the filter residue is filtered again and washed to neutral, and then placed in a drying box to adjust the temperature to 90°C.

[0089] Example 21: The difference between this example and Example 1 is that the pineapple leaf fiber is stretched and refined, and the stretching multiple is 1.9 times; and then dicyclopentadiene is sprayed on the surface of the modified pineapple leaf fiber, and the spraying amount is 0.05 g / mm 2 .

[0090] Example 22: The difference between this example and Example 1 is that the pineapple leaf fiber is drawn and refined, the draw ratio is 2.1 times, and dicyclopentadiene is sprayed on the surface of the modified pineapple leaf fiber, the spraying amount is 0.07 g / mm 2 .

[0091] Example 23: The difference between this example and Example 2 is that 70% of the total mass of the flax fiber, the bamboo charcoal fiber and the nano-chitin fiber are blended as the warp yarn.

[0092] Example 24: The difference between this example and Example 2 is that 80% of the total mass of the flax fiber, the bamboo charcoal fiber and the nano-chitin fiber are blended as the warp yarn.

[0093] Example 25: The difference between this example and Example 2 is that the warp yarn and the weft yarn are treated by circulating rinsing with a softener at a temperature of 90℃ at 0.12 MPa for 3 min; then the warp yarn and the weft yarn are treated by circulating rinsing with a softener cooled to 75℃ at 0.25 MPa for 6 min.

[0094] Example 26: The difference between this example and Example 2 is that the warp yarn and the weft yarn are treated by circulating rinsing with a softener at a temperature of 100℃ at 0.14 MPa for 5 min; then the warp yarn and the weft yarn are treated by circulating rinsing with a softener cooled to 65℃ at 0.22 MPa for 4 min.

[0095] Example 27: The difference between this example and Example 2 is that after rinsing, the yarn is high-temperature steamed at 75℃, 0.2 MPa for 30 min; then after rinsing, the yarn is high-temperature steamed at 110℃, 0.6 MPa for 60 min.

[0096] Example 28: The difference between this example and Example 2 is that after rinsing, the yarn is high-temperature steamed at 85℃, 0.3 MPa for 40 min; then after rinsing, the yarn is high-temperature steamed at 105℃, 0.5 MPa for 50 min.

[0097] Example 29: The difference between this example and Example 2 is that desizing treatment, the treatment temperature is 55℃, and the desizing enzyme concentration is 9 g / L.

[0098] Example 30: The difference between this example and Example 2 is that desizing treatment, the treatment temperature is 60℃, and the desizing enzyme concentration is 10 g / L.

[0099] Experimental Example: The description of this experimental example is based on the combined description of Examples 1 and 2, and is intended to illustrate the actual application effect of the present application.

[0100] The fabric prepared by the application is tested according to GB / T 5453-1997 "Determination of Air Permeability of Textile Fabrics" by using a YG461D digital fabric air permeability tester, the sample size is 20cm 2 , the pressure is 100Pa, the test is performed for 3 times, and the average value of the air permeability is taken as the air permeability performance result.

[0101] 1. Explore the influence of the content, diameter and preparation method parameters of each component on the air permeability of the fabric.

[0102] From Figure 1 It can be known from the results that, compared with examples 1-6 and examples 23-30, too little or too much flax fiber ratio, too small or too large diameter of each fiber, too little or too much flax fiber ratio in warp, too small or too large softener flushing parameter and too small or too large desizing parameter can all reduce the air permeability of the fabric, the air permeability of example 28 is higher than that of example 1, but the improvement is small, therefore, from the economic point of view, the parameters of example 1 / 2 are relatively more optimal.

[0103] The fabric prepared by the application is tested according to GB / T 30126-2013 "Detection and Evaluation of Anti-mosquito Performance of Textiles", the sample size is 20cm 2 , the test is performed for 3 times, and the average value of the repellency rate is taken as the anti-mosquito performance result.

[0104] 2. Explore the influence of the preparation parameters of nano-chitin fiber on the repellency rate of the fabric.

[0105] The difference between comparative example 1 and example 1 is that there is no soaking of mosquito repellent liquid;

[0106] The difference between comparative example 2 and example 1 is that the secondary product is not subjected to secondary soaking of mosquito repellent liquid;

[0107] From Figure 2 It can be known from the analysis that, the lack of soaking of mosquito repellent liquid in comparative example 1 and the lack of secondary soaking of mosquito repellent liquid in comparative example 2 both greatly reduce the repellency rate of the fabric, therefore, the multiple soaking of mosquito repellent liquid has a certain effect on mosquito repellency;

[0108] According to the data of examples 1, 7-14, the repellency rate of the fabric prepared by the application can reach more than 90%, and has good mosquito repellency effect, it can be seen from comparative examples 1, 7-14 that, too small or too large heptanoic acid treatment parameter, too small or too large two-time microfluidic homogenization treatment parameter, too small or too large two-time mosquito repellent liquid soaking parameter and too small or too large bamboo vinegar liquid ratio can all reduce the repellency rate of the fabric, therefore, the parameters of example 1 are relatively more optimal.

[0109] The fabric prepared by the application is detected for breaking strength according to GB / T 14337-2022, and the average value of the thermal conductivity is taken as the strength performance result.

[0110] 3. Explore the influence of the preparation parameters of modified pineapple leaf fiber on the breaking strength of fabric.

[0111] The difference between Comparative Example 3 and Example 1 is that the alkali liquor modification is not followed by sodium dialdehyde carboxymethyl cellulose aqueous solution modification.

[0112] The difference between Comparative Example 4 and Example 1 is that the drawing and refining are not performed.

[0113] From the data of Examples 1, 15-22, it can be known that the breaking strength of the fabric prepared by the application can reach more than 180 N in general, and the fabric has good breaking strength. Figure 3 It can be known from the analysis that the breaking strength of the fabric of Comparative Example 3 lacking sodium dialdehyde carboxymethyl cellulose aqueous solution modification and Comparative Example 4 lacking refining treatment is greatly reduced compared with Examples 15-22, and thus the two has a certain effect on the breaking strength of the fabric.

[0114] According to the data of Examples 1, 15-22, it can be known that the breaking strength of the fabric prepared by the application can reach more than 180 N in general, and the fabric has good breaking strength. It can be known from the analysis that the breaking strength of the fabric of Comparative Example 3 lacking sodium dialdehyde carboxymethyl cellulose aqueous solution modification and Comparative Example 4 lacking refining treatment is greatly reduced compared with Examples 15-22, and thus the two has a certain effect on the breaking strength of the fabric.

[0114] According to the data of Examples 1, 15-22, it can be known that the breaking strength of the fabric prepared by the application can reach more than 180 N in general, and the fabric has good breaking strength. It can be known from the analysis that the breaking strength of the fabric of Comparative Example 3 lacking sodium dialdehyde carboxymethyl cellulose aqueous solution modification and Comparative Example 4 lacking refining treatment is greatly reduced compared with Examples 15-22, and thus the two has a certain effect on the breaking strength of the fabric.

Claims

1. A high air permeability linen retro-satin woven fabric, characterized in that, By weight parts, including: Flax fiber: 90~100 parts; Polyester fiber: 20~25 parts; Bamboo charcoal fiber: 10~15 parts; Nanochitin fiber: 5~10 parts; Modified pineapple leaf fiber: 4~6 parts; The preparation method of the nanochitin fiber is: Chitin is soaked in a heptanoic acid solution with a molar concentration of 5~10 mol / L, the soaking treatment temperature is 80~120℃, and the soaking treatment time is 1~4h, to obtain heptanoic acid treated chitin; The pH of the heptanoic acid treated chitin is adjusted to 9.5~10, and a dynamic ultra-high pressure microjet machine is used for one-time microjet homogenization treatment under a homogenization pressure of 80~100MPa, and the heptanoic acid treated chitin is subjected to repeated one-time microjet homogenization treatment 2~4 times, and the obtained product is subjected to solid-liquid separation and drying to obtain a one-time product, and the one-time product is soaked in a mosquito repellent liquid at a temperature of 40~50℃ for one time for 30~40min, and the solid-liquid ratio is 1:6~9; The pH of the one-time soaked one-time product is adjusted to 9.5~10, and a dynamic ultra-high pressure microjet machine is used for two-time microjet homogenization treatment under a homogenization pressure of 120~160MPa, and the heptanoic acid treated chitin is subjected to repeated two-time microjet homogenization treatment 2~4 times, and the obtained product is subjected to solid-liquid separation and drying to obtain a two-time product, and the two-time product is soaked in a mosquito repellent liquid concentrated to 70~80% of the original concentration and at a temperature of 20~30℃ for the same solid-liquid ratio for 10~20min, and after washing and drying, the nanochitin fiber is obtained; The preparation method of the modified pineapple leaf fiber is: Degumming treatment: The pineapple leaf fiber is placed in a supercritical fluid treatment device and subjected to degumming treatment at a pressure of 15~20MPa and a temperature of 105~115℃ for 15~30min; Modification treatment: after the degumming treatment of the pineapple leaf fiber, add lye to completely immerse and mix evenly, heat to 32~34℃ and vacuum soak for 20~25min, filter after vacuum soaking, wash the filter residue to neutral, then add a 0.25~0.35% concentration of sodium carboxymethyl cellulose aqueous solution to completely immerse and mix evenly, filter again and wash the filter residue to neutral, adjust the temperature to 80~90℃ in the drying box, dry, then stretch and refine, the stretching multiple is 1.9~2.1 times, then spray dicyclopentadiene on the surface of the stretched and refined pineapple leaf fiber, the spraying amount is 0.05~0.07g / mm 2 , and finally obtain modified pineapple leaf fiber.

2. A high air permeability linen retro-satin woven fabric according to claim 1, characterized in that, Characterized in that, The mosquito repellent liquid comprises, by mass percentage, 5~10% of lavender essential oil, 10~15% of linaloe essential oil, and the balance of bamboo vinegar.

3. A high air permeability linen vintage satin weave woven fabric according to claim 1, characterized in that, The diameter of the flax fiber is 15~17μm, the diameters of the polyester fiber and the bamboo charcoal fiber are both 10~12μm, the diameter of the nanochitin fiber is 800~900nm, and the diameter of the modified pineapple leaf fiber is 1~3μm.

4. The process for preparing a high air permeability linen retro-satin woven fabric according to any one of claims 1 to 3, characterized in that, Including the following steps: S1, 70~80% of the total mass of flax fiber, bamboo charcoal fiber and nanochitin fiber are blended as warp yarn, and the remaining flax fiber, polyester fiber and modified pineapple leaf fiber are blended as weft yarn; S2, the warp yarn and the weft yarn are treated by circulating washing with a softener at a temperature of 90~100℃ for 3~5min under a pressure of 0.12~0.14MPa, and after washing, the yarn is high-temperature steamed at 75~85℃ and 0.2~0.3MPa for 30~40min; then the warp yarn and the weft yarn are treated by circulating washing with a softener cooled to 65~75℃ under a pressure of 0.22~0.25MPa for 4~6min, and after washing, the yarn is high-temperature steamed at 105~110℃ and 0.5~0.6MPa for 50~60min; S3, the warp yarn and the weft yarn obtained in step S2 are satin woven to obtain an eight-piece three-fly type satin fabric.

5. A process for making a high air permeability linen vintage satin woven fabric as claimed in claim 4, wherein, The warp yarn has a linear density of 18-20 tex, and the weft yarn has a linear density of 15-17 tex.

6. A process for making a high air permeability linen vintage satin woven fabric as claimed in claim 4, wherein, The softener is a hydroxyl-terminated polysiloxane emulsion.

7. A process for making a high air permeability linen vintage satin woven fabric as claimed in claim 4, wherein, In step S3, the satin fabric is desized, the treatment temperature is 55-60 DEG C, the desizing enzyme concentration is 9-10 g / L, and the desizing enzyme is BF-7658.

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