Dyeing method of Leli silk fabric

Abstract

The invention discloses a Leli silk fabric dyeing method, which comprises the following steps: carrying out ultrasonic treatment on Leli silk fibers, soaking the Leli silk fibers in nano aluminum oxide particles to obtain primary treated Leli silk fibers, carrying out acid treatment on secondary Leli silk fibers, and spraying glass particles to obtain secondary treated Leli silk fibers. After the secondary Leli silk fibers are woven into the fabric, the fabric is soaked in the acid dye liquor, various colors can be shown through different dyeing fastness of various fibers, the adsorbability to dye can be enhanced through formed different roughness, the stability of different colors on the fabric is guaranteed, and the color fastness of the fabric is improved. According to the dyeing and finishing process, different colors are shown more obviously, the defect of color mixing in the dyeing and finishing process of the Leli silk fabric in the prior art is overcome, the adaptability and flexibility of the dyeing process can be improved, and it is guaranteed that the dyeing and finishing effect on the fabric is good, and the fabric is bright in color.

Description

Technical Field

[0001] The invention relates to the technical field of dyeing and finishing, in particular to a dyeing method of Lelis fabric. Background Art

[0002] When dyeing textiles, in order to achieve bright colors, such as the two-color effect of yarn weaving, it is necessary to use multiple fibers to weave the fabric and then dye it multiple times with multiple dyes. The multiple fibers on the woven fabric are dyed with different colors of pigments due to the different dyeing and finishing properties of different dyes, making the fabric appear different colors.

[0003] Due to the differences in the adsorption capacity and affinity of different fibers for dyes, the color distribution on various fibers may be uneven during the dyeing process, resulting in problems such as color spots, color spots or color stains. Multiple dyeing may increase the instability of the combination between dyes and fibers, causing the dyed fabric to fade or change color under conditions such as washing, friction or light. Color fastness is one of the important indicators to measure dyeing quality. A decrease in color fastness will directly affect the service life of the fabric and consumer satisfaction.

[0004] Therefore, it is necessary to improve the fabric dyeing method in the prior art to solve the above problems. Summary of the invention

[0005] The invention overcomes the shortcomings of the prior art and provides a dyeing method for Lelis fabric, aiming to solve the defects of uneven color and poor color fastness of multi-color effect fabrics in the prior art.

[0006] To achieve the above object, the technical solution adopted by the present invention is: a dyeing method of Lelisi fabric, comprising the following steps:

[0007] S1: subjecting the Lelis fiber to ultrasonic treatment for 1-2 hours and immersing it in a nano-alumina treatment solution for 5-10 minutes to obtain a once-treated Lelis fiber;

[0008] S2: soaking the primary treated Lelis fiber in S1 in an acid solution for 0.5-1h, spraying with glass particles for 10-20min after surface treatment, to obtain secondary treated Lelis fiber;

[0009] S3: Weaving the secondary treated Lelis fiber in S2 with polyester to obtain Lelis fabric;

[0010] S4: soaking the Lelisi fabric in S3 in dye solution to complete the dyeing process of the Lelisi fabric.

[0011] In a preferred embodiment of the present invention, the fineness of the Lelis fiber in S1 is 5-7D.

[0012] In a preferred embodiment of the present invention, the frequency of the ultrasonic treatment in S1 is 40-50 kHz.

[0013] In a preferred embodiment of the present invention, the mass fraction of nano-alumina in the nano-alumina treatment solution in S1 is 8-10%, and the diameter of the nano-alumina molecules is 200-400 nm.

[0014] In a preferred embodiment of the present invention, the active substance in the acid solution in S2 is one of HCl and H2SO4, and the volume fraction in the acid solution is 5-10%.

[0015] In a preferred embodiment of the present invention, the diameter of the glass particles in S2 is 5-10 μm, and the material composition of the glass particles is silicon dioxide.

[0016] In a preferred embodiment of the present invention, the glass particles in S2 are sprayed by electrostatic spraying or air flow spraying.

[0017] In a preferred embodiment of the present invention, the weaving method in S3 is machine weaving, and the weaving pattern is twill.

[0018] In a preferred embodiment of the present invention, the dye solution in S4 is one of acid red 26, acid blue 9, and acid yellow 23.

[0019] In a preferred embodiment of the present invention, the concentration of the dye solution in S4 is 10-30 g / L, and the working temperature of the dye solution is 105-115°C.

[0020] The present invention solves the defects existing in the background technology and has the following beneficial effects:

[0021] (1) The present invention provides a method for dyeing Lelis fabric, wherein Lelis fiber is subjected to ultrasonic treatment and then immersed in nano-alumina particles to obtain primary-treated Lelis fiber, and secondary Lelis fiber is subjected to acid treatment and then sprayed with glass particles to obtain secondary-treated Lelis fiber, and the secondary Lelis fiber is woven into fabric, and then the fabric is immersed in an acidic dye solution. Compared with the dyed and finished fabrics in the prior art, the different roughnesses formed can enhance the adsorption of dyes, ensure the stability of different colors on the fabric, make the different colors more obvious, and solve the defects of uneven color and poor color fastness of multi-color effect fabrics in the prior art.

[0022] (2) In the present invention, the diameter of the glass particles is 5-10 μm, and the material composition of the glass particles is silicon dioxide. The spraying of silicon dioxide glass particles can physically increase the roughness of the fiber surface, provide more attachment points for the dye, and thus improve the uniformity and fastness of dyeing compared to the prior art. The spraying of silicon dioxide glass particles can increase the friction between the fibers, which helps to improve the stability and anti-slip performance of the fabric.

[0023] (3) In the present invention, the dyeing liquid has an action temperature of 105-115°C. Within this temperature range, the fiber structure may become more relaxed, making it easier for the dye molecules to enter the fiber. Compared with the prior art, the binding force between the dye and the fiber is enhanced, thereby improving the dyeing uniformity and color fastness.

[0024] (4) In the present invention, before immersing the Lelis fiber in the nano-alumina solution, the Lelis fiber is subjected to ultrasonic treatment at a frequency of 40-50 kHz. The ultrasonic treatment can generate high-frequency vibrations, which helps to enhance the activity of the Lelis fiber surface, promote the formation of small protrusions on the Lelis fiber surface, and improve the adhesion of nano-alumina to the Lelis surface.

[0025] (5) In the present invention, the glass particles and nano-alumina particles have different sizes. Particles of different sizes provide more attachment points for dye molecules, thereby increasing the contact area between the dye and the fiber. Compared with the prior art, this helps to improve the uniformity of dyeing. The small protrusions at the micron and nano scales can fill the pores and depressions on the fiber surface, making the dye cover the fiber surface more uniform, which helps the dye molecules diffuse inside the fiber, allowing the dye to penetrate deeper into the fiber, thereby improving the uniformity and depth of dyeing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 is a method step diagram of a preferred embodiment of the present invention;

[0028] Figure 2 It is a physical effect diagram of a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0031] like Figure 1 As shown, a dyeing method of Lelis fabric comprises the following steps:

[0032] S1: subjecting the Lelis fiber to ultrasonic treatment for 1-2 hours and immersing it in a nano-alumina treatment solution for 5-10 minutes to obtain a once-treated Lelis fiber;

[0033] S2: soaking the primary treated Lelis fiber in S1 in an acid solution for 0.5-1h, spraying with glass particles for 10-20min after surface treatment, to obtain secondary treated Lelis fiber;

[0034] S3: Weaving the secondary treated Lelis fiber in S2 with polyester to obtain Lelis fabric;

[0035] S4: Soak the Lelis fabric in S3 in the dye solution to complete the dyeing process of the Lelis fabric.

[0036] The fineness of Lelis fiber in S1 is 5-7D. Lelis fiber is a specially modified polyester fiber that is copolymerized with monomers with dye-affinity groups (such as sulfonates, etc.), which has better softness, glossiness and dyeing properties. Fine fibers have a larger specific surface area, which helps dye molecules to better penetrate and evenly distribute on the surface and inside of the fiber, thereby reducing uneven dyeing. The surface of fine fibers is smoother, which helps to reflect more light, giving the fabric a better gloss.

[0037] The ultrasonic treatment frequency in S1 is 40-50kHz. Ultrasonic treatment can generate high-frequency vibrations, which helps to enhance the activity of the Lelis fiber surface, promote the formation of small protrusions on the Lelis fiber surface, and improve the adhesion of nano-alumina to the Lelis surface.

[0038] The mass fraction of nano-alumina in the nano-alumina treatment solution in S1 is 8-10%, and the diameter of the nano-alumina molecule is 200-400nm. The addition of nano-alumina particles can increase the roughness of the fiber surface, provide more attachment points for the dye, and thus improve the uniformity and fastness of dyeing. Nano-alumina particles can enhance the fiber's adsorption capacity for dyes due to their large specific surface area, and help the dyes to be more evenly distributed on the fiber surface. Nanoparticles can penetrate into the microstructure of the fiber, help the dyes to evenly enter the fiber, and reduce unevenness during the dyeing process.

[0039] The active substance in the acid solution in S2 is one of HCl and H2SO4, and the volume fraction in the acid solution is 5-10%. The increase in surface roughness provides more attachment points for dye molecules, thereby enhancing the fiber's ability to adsorb dyes. The rough surface helps the dye to be more evenly distributed on the fiber, reducing unevenness during the dyeing process.

[0040] The diameter of the glass particles in S2 is 5-10 μm, and the material composition of the glass particles is silicon dioxide. The surface treatment method is to first spray a 5% sodium silicate solution for 10 minutes to 30 minutes. The spraying of silica glass particles can physically increase the roughness of the fiber surface, provide more attachment points for the dye, and thus improve the uniformity and fastness of the dyeing. The spraying of silica glass particles can increase the friction between the fibers, which helps to improve the stability and anti-slip performance of the fabric.

[0041] The small protrusions of different sizes provide more attachment points for dye molecules, thereby increasing the contact area between the dye and the fiber, which helps to improve the uniformity of dyeing. The small protrusions at the micron and nanometer levels can fill the pores and depressions on the fiber surface, making the dye cover the fiber surface more evenly. The small protrusions help the dye molecules diffuse inside the fiber, allowing the dye to penetrate deeper into the fiber, improving the uniformity and depth of dyeing.

[0042] The spraying method of the glass particles in S2 is one of electrostatic spraying or airflow spraying. The electrostatic effect can make the glass particles cover the fiber surface more evenly, improving the uniformity of spraying. The electrostatic effect increases the attraction between the particles and the fibers, making the glass particles more firmly attached to the fiber surface. Airflow spraying can control the uniformity and coverage of the spraying by adjusting the size and direction of the airflow. The airflow can help disperse the particles and reduce the aggregation on the fibers, thereby improving the uniformity of the spraying.

[0043] The weaving method in S3 is weaving, and the weaving pattern is twill. Weaving is a traditional weaving method that can provide a stable and uniform fabric structure, which is beneficial to improving the overall quality and durability of the fabric. Twill patterns have richer visual effects than plain weaves, and can give the fabric a more three-dimensional and layered appearance. In S3, the secondary treated Lelis fiber and polyester fiber are spun separately and then woven. After spinning, secondary treated Lelis yarn and polyester yarn are obtained, and the secondary treated Lelis yarn is used as the warp yarn and the polyester yarn is used as the weft yarn for weaving. Lelis fiber has been modified to have better dyeing properties. When combined with polyester fiber, it can make the dyeing of the fabric more uniform and the color more vivid.

[0044] The dye liquor in S4 is one of Acid Red 26, Acid Blue 9, and Acid Yellow 23. Acid dyes can provide bright hues, making fabric colors more eye-catching and attractive, have good color fastness, and can maintain the brightness of colors even after washing and rubbing, and have good covering power, which can evenly cover the fibers and provide uniform dyeing effects.

[0045] The dye concentration in S4 is 10-30g / L, and the dye action temperature is 105-115℃. Higher temperature can speed up the diffusion of dye molecules in the fiber, thereby improving dyeing efficiency and shortening dyeing time. Appropriate high temperature helps to evenly distribute the dye in the fiber and reduce streaks or spots during the dyeing process.

[0046] like Figure 2 As shown, the warp and weft yarns of the dyed fabric have a relatively obvious color difference, so that the fabric can show different dyeing effects on one dye, and the fabric has good color uniformity, that is, there are no patches or stripes of different shades of color on the entire fabric surface.

[0047] Embodiment 1

[0048] This embodiment provides a method for dyeing Lelisi, and the dyeing process is as follows:

[0049] S1: The 6D Lelis fiber was subjected to ultrasonic treatment for 1.5 hours at a frequency of 40kHz, and immersed in a nano-alumina treatment solution for 10 minutes, wherein the mass fraction of nano-alumina in the nano-alumina treatment solution was 7%, and the diameter of the nano-alumina molecule was 300nm, to obtain a once-treated Lelis fiber;

[0050] S2: Soak the once treated Lelis fiber in S1 in an acid solution for 0.5-1h, wherein the acid solution is a 10% HCl solution by volume, and spray a 5% sodium silicate solution for 20 minutes, and then spray silicon dioxide particles with a particle diameter of 8 μm for 20 minutes by electrostatic spraying to obtain a second treated Lelis fiber;

[0051] S3: spinning the secondary treated Lelis fiber and the polyester fiber in S2 separately and then weaving them, to obtain secondary treated Lelis yarn and polyester yarn after spinning, using the secondary treated Lelis yarn as warp yarn and the polyester yarn as weft yarn for weaving, using machine weaving, and using a twill weaving pattern to obtain Lelis fabric;

[0052] S4: Soak the Lelis fabric in S3 in a dye solution, wherein the dye solution is acid blue 9, the dye solution concentration is 20 g / L, and the dye solution action temperature is 105° C., thereby completing the dyeing process of the Lelis fabric.

[0053] Embodiment 2

[0054] This embodiment provides a method for dyeing Lelisi, and the dyeing process is as follows:

[0055] S1: The 6D Lelis fiber was subjected to ultrasonic treatment for 1.5 hours at a frequency of 40kHz, and immersed in a nano-alumina treatment solution for 10 minutes, wherein the mass fraction of nano-alumina in the nano-alumina treatment solution was 8%, and the diameter of the nano-alumina molecule was 300nm, to obtain a once-treated Lelis fiber;

[0056] S2: Soak the once treated Lelis fiber in S1 in an acid solution for 0.5-1h, wherein the acid solution is a 10% HCl solution by volume, and spray a 5% sodium silicate solution for 20 minutes, and then spray silicon dioxide particles with a particle diameter of 8 μm for 20 minutes by electrostatic spraying to obtain a second treated Lelis fiber;

[0057] S3: spinning the secondary treated Lelis fiber and the polyester fiber in S2 separately and then weaving them, to obtain secondary treated Lelis yarn and polyester yarn after spinning, using the secondary treated Lelis yarn as warp yarn and the polyester yarn as weft yarn for weaving, using machine weaving, and using a twill weaving pattern to obtain Lelis fabric;

[0058] S4: Soak the Lelis fabric in S3 in a dye solution, wherein the dye solution is acid blue 9, the dye solution concentration is 20 g / L, and the dye solution action temperature is 105° C., thereby completing the dyeing process of the Lelis fabric.

[0059] Embodiment 3

[0060] This embodiment provides a method for dyeing Lelisi, and the dyeing process is as follows:

[0061] S1: The 6D Lelis fiber was subjected to ultrasonic treatment for 1.5 hours at a frequency of 40kHz, and immersed in a nano-alumina treatment solution for 10 minutes, wherein the mass fraction of nano-alumina in the nano-alumina treatment solution was 9%, and the diameter of the nano-alumina molecule was 300nm, to obtain a once-treated Lelis fiber;

[0062] S2: Soak the once treated Lelis fiber in S1 in an acid solution for 0.5-1h, wherein the acid solution is a 10% HCl solution by volume, and spray a 5% sodium silicate solution for 20 minutes, and then spray silicon dioxide particles with a particle diameter of 8 μm for 20 minutes by electrostatic spraying to obtain a second treated Lelis fiber;

[0063] S3: spinning the secondary treated Lelis fiber and the polyester fiber in S2 separately and then weaving them, to obtain secondary treated Lelis yarn and polyester yarn after spinning, using the secondary treated Lelis yarn as warp yarn and the polyester yarn as weft yarn for weaving, using machine weaving, and using a twill weaving pattern to obtain Lelis fabric;

[0064] S4: Soak the Lelis fabric in S3 in a dye solution, wherein the dye solution is acid blue 9, the dye solution concentration is 20 g / L, and the dye solution action temperature is 105° C., thereby completing the dyeing process of the Lelis fabric.

[0065] Embodiment 4

[0066] This embodiment provides a method for dyeing Lelisi, and the dyeing process is as follows:

[0067] S1: The 6D Lelis fiber was subjected to ultrasonic treatment for 1.5 hours at a frequency of 40kHz, and immersed in a nano-alumina treatment solution for 10 minutes, wherein the mass fraction of nano-alumina in the nano-alumina treatment solution was 10%, and the diameter of the nano-alumina molecule was 300nm, to obtain a once-treated Lelis fiber;

[0068] S2: Soak the once treated Lelis fiber in S1 in an acid solution for 0.5-1h, wherein the acid solution is a 10% HCl solution by volume, and spray a 5% sodium silicate solution for 20 minutes, and then spray silicon dioxide particles with a particle diameter of 8 μm for 20 minutes by electrostatic spraying to obtain a second treated Lelis fiber;

[0069] S3: spinning the secondary treated Lelis fiber and the polyester fiber in S2 separately and then weaving them, to obtain secondary treated Lelis yarn and polyester yarn after spinning, using the secondary treated Lelis yarn as warp yarn and the polyester yarn as weft yarn for weaving, using machine weaving, and using a twill weaving pattern to obtain Lelis fabric;

[0070] S4: Soak the Lelis fabric in S3 in a dye solution, wherein the dye solution is acid blue 9, the dye solution concentration is 20 g / L, and the dye solution action temperature is 105° C., thereby completing the dyeing process of the Lelis fabric.

[0071] Embodiment 5

[0072] This embodiment provides a method for dyeing Lelisi, and the dyeing process is as follows:

[0073] S1: The 6D Lelis fiber was subjected to ultrasonic treatment for 1.5 hours at a frequency of 40kHz, and immersed in a nano-alumina treatment solution for 10 minutes, wherein the mass fraction of nano-alumina in the nano-alumina treatment solution was 11%, and the diameter of the nano-alumina molecule was 300nm, to obtain a once-treated Lelis fiber;

[0074] S2: Soak the once treated Lelis fiber in S1 in an acid solution for 0.5-1h, wherein the acid solution is a 10% HCl solution by volume, and spray a 5% sodium silicate solution for 20 minutes, and then spray silicon dioxide particles with a particle diameter of 8 μm for 20 minutes by electrostatic spraying to obtain a second treated Lelis fiber;

[0075] S3: spinning the secondary treated Lelis fiber and the polyester fiber in S2 separately and then weaving them, to obtain secondary treated Lelis yarn and polyester yarn after spinning, using the secondary treated Lelis yarn as warp yarn and the polyester yarn as weft yarn for weaving, using machine weaving, and using a twill weaving pattern to obtain Lelis fabric;

[0076] S4: Soak the Lelis fabric in S3 in a dye solution, wherein the dye solution is acid blue 9, the dye solution concentration is 20 g / L, and the dye solution action temperature is 105° C., thereby completing the dyeing process of the Lelis fabric.

[0077] Embodiment 6

[0078] This embodiment provides a method for dyeing Lelisi, and the dyeing process is as follows:

[0079] S1: The 6D Lelis fiber was subjected to ultrasonic treatment for 1.5 hours at a frequency of 40kHz, and immersed in a nano-alumina treatment solution for 10 minutes, wherein the mass fraction of nano-alumina in the nano-alumina treatment solution was 9%, and the diameter of the nano-alumina molecule was 300nm, to obtain a once-treated Lelis fiber;

[0080] S2: Soak the once treated Lelis fiber in S1 in an acid solution for 0.5-1h, wherein the acid solution is a 10% HCl solution by volume, and spray a 5% sodium silicate solution for 20 minutes, and then spray silicon dioxide particles with a particle diameter of 8 μm for 20 minutes by electrostatic spraying to obtain a second treated Lelis fiber;

[0081] S3: spinning the secondary treated Lelis fiber and the polyester fiber in S2 separately and then weaving them, to obtain secondary treated Lelis yarn and polyester yarn after spinning, using the secondary treated Lelis yarn as warp yarn and the polyester yarn as weft yarn for weaving, using machine weaving, and using a twill weaving pattern to obtain Lelis fabric;

[0082] S4: Soak the Lelis fabric in S3 in a dye solution, wherein the dye solution is acid blue 9, the dye solution concentration is 20 g / L, and the dye solution action temperature is 100° C., thereby completing the dyeing process of the Lelis fabric.

[0083] Embodiment 7

[0084] This embodiment provides a method for dyeing Lelisi, and the dyeing process is as follows:

[0085] S1: The 6D Lelis fiber was subjected to ultrasonic treatment for 1.5 hours at a frequency of 40kHz, and immersed in a nano-alumina treatment solution for 10 minutes, wherein the mass fraction of nano-alumina in the nano-alumina treatment solution was 9%, and the diameter of the nano-alumina molecule was 300nm, to obtain a once-treated Lelis fiber;

[0086] S2: Soak the once treated Lelis fiber in S1 in an acid solution for 0.5-1h, wherein the acid solution is a 10% HCl solution by volume, and spray a 5% sodium silicate solution for 20 minutes, and then spray silicon dioxide particles with a particle diameter of 8 μm for 20 minutes by electrostatic spraying to obtain a second treated Lelis fiber;

[0087] S3: spinning the secondary treated Lelis fiber and the polyester fiber in S2 separately and then weaving them, to obtain secondary treated Lelis yarn and polyester yarn after spinning, using the secondary treated Lelis yarn as warp yarn and the polyester yarn as weft yarn for weaving, using machine weaving, and using a twill weaving pattern to obtain Lelis fabric;

[0088] S4: Soak the Lelis fabric in S3 in a dye solution, wherein the dye solution is acid blue 9, the dye solution concentration is 20 g / L, and the dye solution action temperature is 110° C., thereby completing the dyeing process of the Lelis fabric.

[0089] Embodiment 8

[0090] This embodiment provides a method for dyeing Lelisi, and the dyeing process is as follows:

[0091] S1: The 6D Lelis fiber was subjected to ultrasonic treatment for 1.5 hours at a frequency of 40kHz, and immersed in a nano-alumina treatment solution for 10 minutes, wherein the mass fraction of nano-alumina in the nano-alumina treatment solution was 9%, and the diameter of the nano-alumina molecule was 300nm, to obtain a once-treated Lelis fiber;

[0092] S2: Soak the once treated Lelis fiber in S1 in an acid solution for 0.5-1h, wherein the acid solution is a 10% HCl solution by volume, and spray a 5% sodium silicate solution for 20 minutes, and then spray silicon dioxide particles with a particle diameter of 8 μm for 20 minutes by electrostatic spraying to obtain a second treated Lelis fiber;

[0093] S3: spinning the secondary treated Lelis fiber and the polyester fiber in S2 separately and then weaving them, to obtain secondary treated Lelis yarn and polyester yarn after spinning, using the secondary treated Lelis yarn as warp yarn and the polyester yarn as weft yarn for weaving, using machine weaving, and using a twill weaving pattern to obtain Lelis fabric;

[0094] S4: Soak the Lelis fabric in S3 in dye solution, wherein the dye solution is acid blue 9, the dye solution concentration is 20 g / L, and the dye solution action temperature is 115° C., thereby completing the dyeing process of the Lelis fabric.

[0095] Embodiment 9

[0096] This embodiment provides a method for dyeing Lelisi, and the dyeing process is as follows:

[0097] S1: The 6D Lelis fiber was subjected to ultrasonic treatment for 1.5 hours at a frequency of 40kHz, and immersed in a nano-alumina treatment solution for 10 minutes, wherein the mass fraction of nano-alumina in the nano-alumina treatment solution was 9%, and the diameter of the nano-alumina molecule was 300nm, to obtain a once-treated Lelis fiber;

[0098] S2: Soak the once treated Lelis fiber in S1 in an acid solution for 0.5-1h, wherein the acid solution is a 10% HCl solution by volume, and spray a 5% sodium silicate solution for 20 minutes, and then spray silicon dioxide particles with a particle diameter of 8 μm for 20 minutes by electrostatic spraying to obtain a second treated Lelis fiber;

[0099] S3: spinning the secondary treated Lelis fiber and the polyester fiber in S2 separately and then weaving them, to obtain secondary treated Lelis yarn and polyester yarn after spinning, using the secondary treated Lelis yarn as warp yarn and the polyester yarn as weft yarn for weaving, using machine weaving, and using a twill weaving pattern to obtain Lelis fabric;

[0100] S4: Soak the Lelis fabric in S3 in a dye solution, wherein the dye solution is acid blue 9, the dye solution concentration is 20 g / L, and the dye solution action temperature is 120° C., thereby completing the dyeing process of the Lelis fabric.

[0101] Comparative Example 1

[0102] In this comparative example, Lelis fabric is dyed, and the dyeing process is as follows:

[0103] S1: spinning 6D Lelis fiber and polyester fiber separately and then weaving them, to obtain Lelis yarn and polyester yarn after spinning, using Lelis yarn as warp yarn and polyester yarn as weft yarn for weaving, using machine weaving, and using twill weaving pattern to obtain Lelis fabric;

[0104] S4: Soak the Lelis fabric in S3 in a dye solution, wherein the dye solution is acid blue 9, the dye solution concentration is 20 g / L, and the dye solution action temperature is 110° C., thereby completing the dyeing process of the Lelis fabric.

[0105] Samples from Examples 1 to 9 and Comparative Example 1 were tested for color fastness to rubbing according to GB / T3920-2008 "Textile Color Fastness Test - Color Fastness to Rubbing", and the dyed fabric was tested on a computer color measuring and matching instrument. According to the principle of mathematical statistics, 20 points were randomly selected on the warp yarn of the dyed fabric to measure the surface color depth at the maximum absorption wavelength, and then the average value was calculated, and the unevenness rate U of dyeing was calculated to perform a dyeing uniformity test, wherein the smaller the unevenness rate U value, the better the levelness of dyeing. The test results are shown in Table 1.

[0106] Table 1 Color fastness and color uniformity test data of Examples 1 to 9 and Comparative Example 1

[0107] Sample source Color fastness rating Unevenness (U) Embodiment 1 4 0.51 Embodiment 2 5 0.48 Embodiment 3 5 0.46 Embodiment 4 5 0.49 Embodiment 5 4 0.53 Embodiment 6 4 0.51 Embodiment 7 5 0.40 Embodiment 8 5 0.44 Embodiment 9 4 0.49 Comparative Example 1 3 1.66

[0108] It can be seen from Table 1 that the color fastness ratings in Examples 1 to 9 are all greater than the color fastness rating in the comparative example, and the unevenness rates are all less than the unevenness rate in the comparative example 1. Therefore, the dyeing method in the present application has superiority.

[0109] In Examples 1 to 5, as the mass fraction of nano-alumina in the nano-alumina treatment solution gradually increases, the color fastness and uniformity of the samples first increase and then decrease. This is because an appropriate amount of nano-alumina can increase the roughness of the fiber surface and provide more dye attachment points, thereby improving dyeing uniformity and color fastness. Too high a mass fraction causes nano-alumina particles to agglomerate on the fiber surface, reducing effective attachment points, thereby reducing dyeing uniformity. Too much nano-alumina blocks the pores on the fiber surface, hinders the penetration of dye molecules, and affects color fastness. The preferred embodiment is Example 3.

[0110] In the third embodiment and the sixth to the ninth embodiment, as the temperature of the dye liquor is gradually increased, the color fastness and uniformity of the sample first increase and then decrease. This is because within a certain temperature range, as the temperature rises, the fiber structure becomes more relaxed, making it easier for the dye molecules to enter the fiber interior, enhancing the binding force of the dye and the fiber, thereby improving the dyeing uniformity and color fastness. When the temperature exceeds a certain threshold, the dye molecules will migrate from the fiber interior to the surface, and this phenomenon is called thermal migration. Thermal migration can cause the redistribution of the dye on the fiber surface, reduce the dye content inside the fiber, thereby reducing the color fastness, and because of the redistribution of the dye, the distribution of the dye in different regions is different, and the dyeing uniformity decreases. The preferred embodiment is the seventh embodiment.

[0111] The above is based on the ideal embodiment of the present invention. Through the above description, relevant personnel can make various changes and modifications without departing from the technical concept of the present invention. The technical scope of the present invention is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A method for dyeing Lelisi fabric, characterized in that: The following steps are involved: S1: subjecting the Lelis fiber to ultrasonic treatment for 1-2 hours and immersing it in a nano-alumina treatment solution for 5-10 minutes to obtain a once-treated Lelis fiber; S2: soaking the primary treated Lelis fiber in S1 in an acid solution for 0.5-1h, spraying with glass particles for 10-20min after surface treatment, to obtain secondary treated Lelis fiber; S3: Weaving the secondary treated Lelis fiber in S2 with polyester to obtain Lelis fabric; S4: soaking the Lelisi fabric in S3 in dye solution to complete the dyeing process of the Lelisi fabric.

2. The dyeing method of Lelis fabric according to claim 1, characterized in that: The fineness of the Lelis fiber in S1 is 5-7D.

3. The dyeing method of Lelis fabric according to claim 1, characterized in that: The frequency of the ultrasonic treatment in S1 is 40-50 kHz.

4. The dyeing method of Lelis fabric according to claim 1, characterized in that: The mass fraction of nano-alumina in the nano-alumina treatment solution in S1 is 8-10%, and the diameter of the nano-alumina molecules is 200-400nm.

5. The dyeing method of Lelis fabric according to claim 1, characterized in that: The active substance in the acid solution in S2 is one of HCl and H2SO4, and the volume fraction in the acid solution is 5-10%.

6. The dyeing method of Lelis fabric according to claim 1, characterized in that: The diameter of the glass particles in S2 is 5-10 μm, and the glass particles are silicon dioxide.

7. The dyeing method of Lelis fabric according to claim 1, characterized in that: The glass particles in S2 are sprayed by electrostatic spraying or air flow spraying.

8. The dyeing method of Lelis fabric according to claim 1, characterized in that: The weaving method in S3 is machine weaving, and the weaving pattern is twill.

9. The dyeing method of Lelis fabric according to claim 1, characterized in that: The dye solution in S4 is one of acid red 26, acid blue 9, and acid yellow 23.

10. The dyeing method of Lelis fabric according to claim 1, characterized in that: The dye solution concentration in S4 is 10-30 g / L, and the dye solution reaction temperature is 105-115°C.

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