Water rubbing and dyeing process for sun-dried gambiered canton gauze
By washing with sugar alcohol solution, forming a Si-O-Si structure with polyols and mineral pigments, and using a dispersant to stabilize pigment distribution, combined with a color-fixing liquid complex, the problems of single color and insufficient color fastness of Xiangyun yarn are solved, achieving a highly efficient and durable dyeing effect.
Patent Information
- Application Number
- CN202511219099.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-28
- Publication Date
- 2025-12-12
AI Technical Summary
Xiangyun yarn has limited color options, and traditional dyes cannot meet the diverse needs of modern consumers. Traditional water marbling techniques also have shortcomings in terms of dyeing effect and fastness.
Sugar alcohol solution is used to wash away impurities from the fabric. Polyols and mineral pigments are used to form a Si-O-Si three-dimensional structure. Dispersants are added to stabilize the pigment distribution. A fiber-metal ion-pigment complex is formed through a fixing solution to improve the color fastness.
It improves the dyeing effect and the adhesion of pigments, increases the color fastness, and achieves a brilliant effect for unique patterns.
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Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of fabric dyeing, and relates to a water-tattoo dyeing process for Xiangyun silk dyed with Dioscorea panicea. BACKGROUND
[0002] Xiangyun silk is a silk fabric dyed with Dioscorea panicea, and has the characteristics of black and bright, smooth and flat, and becomes a high-end silk fabric in China. The color of Xiangyun silk is usually black on one side and orange-red on the other side, which is too single and cannot meet the needs of consumers. Therefore, dyes are used for dyeing on the basis of Xiangyun silk to give more vivid colors and patterns. Dyes are divided into chemical synthetic dyes and natural dyes, wherein the natural dyes refer to dyes obtained from animals, plants or mineral resources without or with little chemical processing, and the natural dyes are favored by people due to the characteristics of biodegradability and environmental safety.
[0003] The water-tattoo dyeing process is an artistic creation based on the principle of oil-water separation, and uses drawing tools and pigments to draw on the drawing liquid prepared by water and plant glue powder, and then the drawn picture is transferred to the surface of a solid material to form a decorative pattern. Water-tattoo dyeing has a deep cultural heritage in decorative design, and is a carrier of national and even world historical heritage.
[0004] Therefore, the water-tattoo dyeing process for Xiangyun silk dyed with Dioscorea panicea provided by the application combines the three-thousand-year-old tattooing process with Xiangyun silk, which is undoubtedly a wonderful collision of Chinese civilization color and non-heritage technique. This combination not only shows the deep cultural heritage of traditional culture, but also injects new inspiration and vitality into modern design. SUMMARY
[0005] The application relates to a water-tattoo dyeing process for Xiangyun silk dyed with Dioscorea panicea, and belongs to the technical field of fabric dyeing. The water-tattoo dyeing process for Xiangyun silk dyed with Dioscorea panicea discloses the following steps: using a mulberry silk fabric as a raw material, drying after Xiangyun silk dyed with Dioscorea panicea, washing in a sugar alcohol solution, drying, adhering to drawing liquid dyeing, and finally obtaining a colorful Xiangyun silk with a water-ink virtual and real artistic conception and a unique pattern through a fixing treatment. The sugar alcohol solution washes away impurities in the fabric, reduces the interfacial tension, and improves the dyeing effect. The polyhydric alcohol and the silicate in the mineral pigment are hydrolyzed to form a Si-O-Si three-dimensional structure, so that the pigment is firmly attached to the fabric. The dispersing agent is added to the mineral pigment to make the pigment stably float on the liquid surface, and the dyeing effect is improved. The metal ions in the mineral pigment are coordinated with the carboxyl groups in the fixing solution, and a stable complex is formed among the fiber-metal ion-pigment, so that the dyeing fastness is further improved.
[0006] The object of the application can be achieved by the following technical scheme. A water-tattoo dyeing process for Xiangyun silk dyed with Dioscorea panicea, which specifically comprises the following steps: (1) The mulberry silk fabric is bleached with Xiangyun yarn, dried, washed in a sugar alcohol solution, and then dried to obtain a pretreated fabric; (2) The natural seaweed powder is mixed with distilled water to form a drawing liquid, which is ready for use; (3) The mineral pigment is mixed with a dispersing agent and distilled water, and then put into a grinding device for grinding. The drawing pigment is obtained by adding bovine bile. (4) The drawing pigment of step (3) is dropped into the drawing liquid and floats on the surface. After drawing, the pretreated fabric is flattened and attached to the drawing liquid. Then it is taken out and dried. (5) Then it is put into a fixing liquid, completely immersed, taken out, washed with water and dried.
[0007] Further, the sugar alcohol solution in step (1) is a xylitol solution or a sorbitol solution, wherein the concentration of the sugar alcohol solution is 40-60 g / L, and the temperature and time of the washing are 50-60°C and 15-20 min, respectively.
[0008] Further, the solid-liquid ratio of the natural seaweed powder to distilled water in step (2) is 4-6 g:1000-1200 mL, and the stirring time is 20-30 min.
[0009] Further, the mass ratio of the mineral pigment, the dispersing agent, distilled water and bovine bile in step (3) is 5-6:0.2-0.5:18-20:0.5-0.7, wherein the composition of the mineral pigment is lapis lazuli, and the rotation speed and time of the grinding are 5000-6000 r / min and 90-120 min, respectively.
[0010] Further, the preparation method of the dispersing agent in step (3) is as follows: maleic anhydride-vinyl acetate copolymer is mixed with sodium hydroxide solution according to a mass ratio of 2-3:5-8 for saponification, then acetone is added to produce a precipitate, the precipitate is washed with deionized water, and vacuum drying is performed to obtain the dispersing agent. The mass fraction of the sodium hydroxide solution is 50-60%, the saponification temperature and time are 40-48°C and 2-3 h, respectively, the mass ratio of the acetone to the sodium hydroxide solution is 1:1-1.5, and the vacuum drying temperature and time are 50°C and 3-5 h, respectively.
[0011] Further, the mass ratio of the drawing pigment to the drawing liquid in step (4) is 0.8-3:1000-1100, and the time of attaching to the drawing liquid is 10-15 s.
[0012] Further, the fixing liquid of step (5) is prepared by compounding sodium ethylenediaminetetraacetate and acetic acid solution according to a mass ratio of 2:5-6, wherein the mass fraction of the acetic acid solution is 3-5%, and the pH value of the fixing liquid is 4-6.
[0013] Furthermore, the immersion temperature and time in step (5) are 30-40℃ and 15-30min, respectively.
[0014] The beneficial effects of this invention are: 1. Washing with sugar alcohol solution removes impurities from the fabric and reduces interfacial tension to improve the dyeing effect. The polyol and the silicate of the mineral pigment hydrolyze to form a Si-O-Si three-dimensional structure, which makes the pigment firmly adhere to the fabric. 2. Adding dispersants to mineral pigments allows them to float stably on the liquid surface. The anchoring groups of the dispersant bind to the surface of the particles, while the chain segments form a protective layer of a certain thickness on the surface of the pigment particles. When pigment particles adsorbed with polymeric dispersants approach each other, the repulsive force between the adsorption layers causes the particles to separate, thus achieving stable dispersion of the pigment particles in the medium. Furthermore, the -COO groups in the dispersant... - With silk-NH3 + The presence of static electricity enhances the coloring effect; 3. Finally, combined with the treatment of the fixing solution, the metal ions in the mineral pigment coordinate with the carboxyl groups in the fixing solution, forming a stable complex among the fiber, metal ions and pigment, which further improves the color fastness. Detailed Implementation
[0015] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features and effects of the present invention, in conjunction with embodiments, is provided below.
[0016] The natural seaweed powder involved in this invention was purchased from Zhengzhou Tianshun Food Additives Co., Ltd., and its mesh size is 100 mesh.
[0017] Example 1
[0018] A water-based dyeing process for Xiangyun yarn after sun-drying, specifically including the following steps: (1) Mulberry silk fabrics are sun-dried after being sun-dried with Xiangyun yarn, washed in sugar alcohol solution, and then dried to become pre-treated fabrics. (2) Mix natural seaweed powder with distilled water to form a painting solution, and set aside. (3) Mineral pigments are mixed with dispersant and distilled water and then ground in a grinding device. After adding ox bile, painting pigments are obtained. (4) Drop the paint from step (3) into the paint liquid and let it float on the surface. After painting, flatten the pre-treated fabric and attach it to the paint liquid. Then take it out and let it dry. (5) Next, immerse it completely in the color-fixing solution, then take it out, wash it with water and dry it. The process is now complete.
[0019] The sugar alcohol solution in step (1) is a xylitol solution, wherein the concentration of the sugar alcohol solution is 40 g / L, and the temperature and time of the washing are 50℃ and 15 min, respectively.
[0020] The solid-liquid ratio of the natural seaweed powder to distilled water in step (2) is 4 g:1000 mL, and the stirring time is 20 min.
[0021] The mass ratio among the mineral pigment, the dispersant, the distilled water and the bovine bile in step (3) is 5:0.2:18:0.5, wherein the component of the mineral pigment is lapis lazuli, and the rotation speed and time of the grinding are 5000 r / min and 90 min, respectively.
[0022] The preparation method of the dispersant in step (3) is as follows: maleic anhydride-vinyl acetate copolymer is mixed with a sodium hydroxide solution according to a mass ratio of 2:5 for saponification, then acetone is added to produce a precipitate, the precipitate is extracted and washed with deionized water, and vacuum drying is performed to obtain the dispersant, the mass fraction of the sodium hydroxide solution is 50%, the temperature and time of the saponification are 40℃ and 2 h, respectively, the mass ratio of the acetone to the sodium hydroxide solution is 1:1, and the temperature and time of the vacuum drying are 50℃ and 3 h, respectively.
[0023] The mass ratio of the drawing pigment to the drawing liquid in step (4) is 0.8:1000, and the time of adhering to the drawing liquid is 10 s.
[0024] The fixing solution in step (5) is prepared by compounding sodium ethylenediaminetetraacetate and an acetic acid solution according to a mass ratio of 2:5, wherein the mass fraction of the acetic acid solution is 3%, and the pH value of the fixing solution is 4.
[0025] The temperature and time of the immersion in step (5) are 30℃ and 15 min, respectively.
[0026] The preparation method of the maleic anhydride-vinyl acetate copolymer is as follows: maleic anhydride, vinyl acetate and acetone are mechanically stirred, the temperature of the reaction system is raised to 75℃, 1 / 2 of azobisisobutyronitrile is added dropwise, and the system is kept warm for one hour, then the remaining 1 / 2 of azobisisobutyronitrile is added dropwise, and the system is kept warm for another one hour, then the system is cooled to room temperature, and is added dropwise into chloroform for reprecipitation, extracted, washed with chloroform, and finally dried in a vacuum oven to obtain the maleic anhydride-vinyl acetate copolymer. The mass ratio among the maleic anhydride, the vinyl acetate, the acetone, the azobisisobutyronitrile and the chloroform is 1:1:5:0.05:2, wherein the chloroform is the dropwise amount for reprecipitation, and the drying temperature is 50℃.
[0027] Example 2
[0028] A kind of gauze sunning after water batik process, the gauze sunning after water batik process specifically includes the following steps: (1) mulberry silk fabric is sunned and dried, is washed in sugar alcohol solution, and then is dried to be pretreated fabric; (2) natural seaweed powder is mixed with distilled water to form drawing liquid, ready for use; (3) mineral pigment is mixed with dispersing agent and distilled water, then put into grinding device for grinding, add bovine bile to obtain drawing pigment; (4) the drawing pigment of step (3) is dropped into drawing liquid and floats on the surface, after drawing, pretreated fabric is flat and adheres to drawing liquid, then take out and dry; (5) then put into fixing solution, then take out, wash with water and dry, finished.
[0029] The sugar alcohol solution in step (1) is sorbitol solution, the concentration of the sugar alcohol solution is 50 g / L, and the temperature and time of washing are 55 DEG C and 18 min respectively.
[0030] The solid-liquid ratio of natural seaweed powder and distilled water in step (2) is 5 g:1100 mL, and the stirring time is 25 min.
[0031] The mass ratio of mineral pigment, dispersing agent, distilled water and bovine bile in step (3) is 5.5:0.3:19:0.6, wherein the composition of mineral pigment is lapis lazuli, and the rotation speed and time of grinding are 5500 r / min and 110 min respectively.
[0032] The preparation method of dispersing agent in step (3) is as follows: maleic anhydride-vinyl acetate copolymer is mixed with sodium hydroxide solution according to the mass ratio of 2.5:6 for saponification, then acetone is added to produce precipitate, suction filtration, the precipitate is washed with deionized water, vacuum drying to obtain dispersing agent, the mass fraction of sodium hydroxide solution is 55%, the temperature and time of saponification are 44 DEG C and 2.5 h respectively, the mass ratio of acetone and sodium hydroxide solution is 1:1.2, and the temperature and time of vacuum drying are 50 DEG C and 4 h respectively.
[0033] The mass ratio of drawing pigment and drawing liquid in step (4) is 1.5:1050, and the time of adhering to drawing liquid is 13 s.
[0034] The fixing solution in step (5) is prepared by compounding ethylenediaminetetraacetic acid sodium and acetic acid solution according to the mass ratio of 2:5.5, wherein the mass fraction of acetic acid solution is 4%, and the pH value of fixing solution is 5.
[0035] The temperature and time of immersion in step (5) are 35 DEG C and 25 min respectively.
[0036] The preparation method of the maleic anhydride-vinyl acetate copolymer is as follows: maleic anhydride, vinyl acetate and acetone are mechanically stirred, the reaction system is raised to 75℃, 1 / 2 of azobisisobutyronitrile is added dropwise, and the system is kept for one hour, then the remaining 1 / 2 of azobisisobutyronitrile is added dropwise, and the system is kept for one hour, then the system is cooled to room temperature, and is added dropwise into chloroform for reprecipitation, filtered, washed with chloroform, and finally dried in a vacuum oven to obtain the maleic anhydride-vinyl acetate copolymer; The mass ratio between the maleic anhydride, vinyl acetate, acetone, azobisisobutyronitrile and chloroform is 1:1:5:0.05:2, wherein the chloroform is the dropwise amount for reprecipitation, and the drying temperature is 50℃.
[0037] Example 3
[0038] A silk pongee sun-dried water-tattooing process, which specifically comprises the following steps: (1) The silk pongee is sun-dried, washed in a sugar alcohol solution, and then dried to obtain a pretreated fabric; (2) Natural seaweed powder is mixed with distilled water to form a drawing liquid, which is ready for use; (3) Mineral pigments are mixed with a dispersing agent and distilled water, and then put into a grinding device for grinding, and then bovine bile is added to obtain drawing pigments; (4) The drawing pigments of step (3) are added dropwise into the drawing liquid and float on the surface, and then the pretreated fabric is drawn flat and attached to the drawing liquid, and then taken out and dried; (5) Then put it into a fixing liquid to completely immerse it, and then take it out, wash it with water and dry it, and the process is completed.
[0039] The sugar alcohol solution in step (1) is a xylitol solution, wherein the concentration of the sugar alcohol solution is 60 g / L, and the temperature and time of the washing are 60℃ and 20 min, respectively.
[0040] The solid-liquid ratio of the natural seaweed powder to distilled water in step (2) is 6 g:1200 mL, and the stirring time is 30 min.
[0041] The mass ratio of the mineral pigments, the dispersing agent, distilled water and bovine bile in step (3) is 6:0.5:20:0.7, wherein the composition of the mineral pigments is lapis lazuli, and the rotation speed and time of the grinding are 6000 r / min and 120 min, respectively.
[0042] The step (3) dispersion agent preparation method is: maleic anhydride-vinyl acetate copolymer is mixed with sodium hydroxide solution according to a mass ratio of 3:8 for saponification, then acetone is added to produce precipitation, suction filtration, the precipitate is washed with deionized water, and vacuum drying is performed to obtain the dispersion agent, the mass fraction of the sodium hydroxide solution is 60%, the saponification temperature and time are 48°C and 3h respectively, the mass ratio of the acetone to the sodium hydroxide solution is 1:1.5, and the vacuum drying temperature and time are 50°C and 5h respectively.
[0043] The mass ratio of the drawing pigment to the drawing liquid in the step (4) is 3:1100, and the time for adhering to the drawing liquid is 15s.
[0044] The fixing liquid in the step (5) is compounded by sodium ethylenediaminetetraacetate and acetic acid solution according to a mass ratio of 2:6, wherein the mass fraction of the acetic acid solution is 5%, and the pH value of the fixing liquid is 6.
[0045] The temperature and time for immersion in the step (5) are 40°C and 30min respectively.
[0046] The preparation method of the maleic anhydride-vinyl acetate copolymer is: maleic anhydride, vinyl acetate and acetone are mechanically stirred, the reaction system temperature is raised to 75°C, 1 / 2 of azobisisobutyronitrile is added dropwise, and then the remaining 1 / 2 of azobisisobutyronitrile is added dropwise, and the system is continuously incubated for 1h, then cooled to room temperature, and then added dropwise into chloroform for reprecipitation, suction filtration, washing with chloroform, and finally drying in a vacuum oven to obtain the maleic anhydride-vinyl acetate copolymer; The mass ratio among the maleic anhydride, vinyl acetate, acetone, azobisisobutyronitrile and chloroform is 1:1:5:0.05:2, wherein the chloroform is the dropwise amount for reprecipitation, and the drying temperature is 50°C.
[0047] Comparative Example 1 On the basis of Example 2, a water transfer printing process for sun-dried post-solarized silk is provided, which specifically comprises the following steps: (1) the silk fabric is sun-dried after being dyed with sun-dried post-solarized silk, and the silk fabric is a silk fabric dyed with sun-dried post-solarized silk; (2) natural seaweed powder is mixed with distilled water to form a drawing liquid, which is ready for use; (3) mineral pigment is added into a dispersion agent and distilled water, and then put into a grinding device for grinding, and then bovine bile is added to obtain drawing pigment; (4) the drawing pigment of step (3) is added dropwise into the drawing liquid and floats on the surface, and after drawing, the silk fabric dyed with sun-dried post-solarized silk is flattened and adhered to the drawing liquid, and then taken out and dried; (5) then put into a fixing liquid to completely immerse, then take out, wash with water and dry, and the process is completed.
[0048] The solid-liquid ratio of natural seaweed powder to distilled water in step (2) is 5 g: 1100 mL, and the stirring time is 25 min.
[0049] The mass ratio among mineral pigment, dispersant, distilled water and bovine bile in step (3) is 5.5:0.3:19:0.6, wherein the composition of mineral pigment is lapis lazuli, and the rotating speed and time of grinding are 5500 r / min and 110 min respectively.
[0050] The preparation method of dispersant in step (3) is as follows: maleic anhydride-vinyl acetate copolymer is mixed with sodium hydroxide solution for saponification according to a mass ratio of 2.5:6, then acetone is added to produce precipitation, suction filtration is performed, the precipitate is washed with deionized water, and vacuum drying is performed to obtain the dispersant; the mass fraction of sodium hydroxide solution is 55%, the saponification temperature and time are 44°C and 2.5 h respectively, the mass ratio of acetone to sodium hydroxide solution is 1:1.2, and the vacuum drying temperature and time are 50°C and 4 h respectively.
[0051] The mass ratio of drawing pigment to drawing liquid in step (4) is 1.5:1050, and the time for adhering to the drawing liquid is 13 s.
[0052] The fixing solution in step (5) is compounded by sodium ethylenediaminetetraacetate and acetic acid solution according to a mass ratio of 2:5.5, wherein the mass fraction of acetic acid solution is 4%, and the pH value of the fixing solution is 5.
[0053] The temperature and time of immersion in step (5) are 35°C and 25 min respectively.
[0054] The preparation method of maleic anhydride-vinyl acetate copolymer is as follows: maleic anhydride, vinyl acetate and acetone are mechanically stirred, the reaction system is raised to 75°C, 1 / 2 of azobisisobutyronitrile is added dropwise, and the system is kept warm for one hour, then the remaining 1 / 2 of azobisisobutyronitrile is added dropwise, and the system is kept warm for one hour, then it is cooled to room temperature and added dropwise into chloroform for reprecipitation, suction filtration is performed, and washing is performed with chloroform, and finally vacuum drying is performed to obtain maleic anhydride-vinyl acetate copolymer; The mass ratio among maleic anhydride, vinyl acetate, acetone, azobisisobutyronitrile and chloroform is 1:1:5:0.05:2, wherein chloroform is the dropwise amount for reprecipitation, and the drying temperature is 50°C.
[0055] Comparative Example 2 On the basis of Example 2, the sugar alcohol solution washing in step (1) is replaced by water washing, and other conditions are the same as those in Example 2.
[0056] Comparative Example 3 On the basis of Example 2, the dispersant of step (3) is removed, and other conditions are consistent with Example 2.
[0057] Comparative Example 4 On the basis of Example 2, the acetic acid solution of the fixing solution is replaced by distilled water of the same mass, and other conditions are consistent with Example 2.
[0058] Comparative Example 5 On the basis of Example 2, the sodium ethylenediaminetetraacetate in the fixing solution is removed, and other conditions are consistent with Example 2.
[0059] Performance Test The dyed fabrics prepared in Examples 1-3 and Comparative Examples 1-5 are used as samples, and a CE7000A computer color matching instrument is used to test the samples. During the test, each sample is folded 4 layers, and the average value is obtained after testing 3 times to obtain the K / S value. The rubbing fastness, soaping fastness and light fastness of the samples are tested according to GB / T3920-2008 "Textile color fastness test: rubbing fastness", GB / T3921-2008 "Textile color fastness test: soaping fastness" A1 procedure and GB / T8430-1998 "Textile color fastness test: light fastness: xenon arc", respectively. The results are shown in Table 1.
[0060] Table 1
[0061] From the results in Table 1, it can be seen that the K / S of Examples 1-3 gradually increases. Since the amount of drawing pigment added in Examples 1-3 gradually increases, the rubbing fastness, soaping fastness and light fastness of Examples 1-3 are all 5, which have excellent anti-fading effect. Comparative Example 1 is not washed, and the impurities affect the coloring effect. In addition, due to the absence of sugar alcohol, the silicate in the mineral pigment cannot be hydrolyzed into a three-dimensional structure, and the color fastness decreases sharply. Although the impurities are removed by washing with water in Comparative Example 2, the color fastness is still poor due to the absence of sugar alcohol. In Comparative Example 3, the dispersant is not added, which affects the distribution of mineral pigments. Due to the partial settlement of pigments, the K / S value decreases, and the coloring effect is poor, which affects the color fastness. In Comparative Examples 4-5, only sodium ethylenediaminetetraacetate solution or acetic acid solution is used as the fixing solution. The sugar alcohol and silicate are hydrolyzed into Si-O-Si three-dimensional structure under acidic conditions. The pH value in the sodium ethylenediaminetetraacetate solution is too high, which leads to a decrease in hydrolysis efficiency, and the fixing effect is poor. In the acetic acid solution, no coordination occurs between the metal ions in the mineral pigment and the carboxyl group, and the color fastness decreases.
[0062] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with the preferred embodiments as above, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, as long as the changes or modifications do not deviate from the technical solution of the present application. Any modification, change, equivalent change and modification of the above embodiments made according to the technical essence of the present application still belong to the scope of the technical solution of the present application.
Claims
1. A water-marbling dyeing process for Xiangyun yarn after sun-drying, characterized in that, The water-based dyeing process after sun-drying Xiangyun yarn specifically includes the following steps: (1) Mulberry silk fabrics are sun-dried after being sun-dried with Xiangyun yarn, washed in sugar alcohol solution, and then dried to become pre-treated fabrics. (2) Mix natural seaweed powder with distilled water to form a painting solution, and set aside. (3) Mineral pigments are mixed with dispersant and distilled water and then ground in a grinding device. After adding ox bile, painting pigments are obtained. (4) Drop the paint from step (3) into the paint liquid and let it float on the surface. After painting, flatten the pre-treated fabric and attach it to the paint liquid. Then take it out and let it dry. (5) Next, immerse it completely in the color-fixing solution, then take it out, wash it with water and dry it. The process is now complete.
2. The water-marbling dyeing process for Xiangyun yarn after sun-drying according to claim 1, characterized in that, In step (1), the sugar alcohol solution is a xylitol solution or a sorbitol solution, wherein the concentration of the sugar alcohol solution is 40-60 g / L, and the washing temperature and time are 50-60℃ and 15-20 min, respectively.
3. The water-based dyeing process for Xiangyun yarn after sun-drying, as described in claim 1, is characterized in that... In step (2), the solid-liquid ratio of natural seaweed powder to distilled water is 4-6g:1000-1200mL, and the stirring time is 20-30min.
4. The water-marbling dyeing process for Xiangyun yarn after sun-drying according to claim 1, characterized in that, In step (3), the mass ratio between mineral pigment, dispersant, distilled water and ox bile is 5-6:0.2-0.5:18-20:0.5-0.7, wherein the mineral pigment is lapis lazuli, and the grinding speed and time are 5000-6000 r / min and 90-120 min, respectively.
5. The water-marbling dyeing process for Xiangyun yarn after sun-drying according to claim 1, characterized in that, The dispersant preparation method in step (3) is as follows: maleic anhydride-vinyl acetate copolymer is mixed with sodium hydroxide solution at a mass ratio of 2-3:5-8 and saponified. Then, acetone is added to produce a precipitate. The precipitate is filtered, washed with deionized water, and vacuum dried to obtain the dispersant. The mass fraction of the sodium hydroxide solution is 50-60%. The saponification temperature and time are 40-48℃ and 2-3h, respectively. The mass ratio of acetone to sodium hydroxide solution is 1:1-1.
5. The vacuum drying temperature and time are 50℃ and 3-5h, respectively.
6. The water-marbling dyeing process for Xiangyun yarn after sun-drying according to claim 1, characterized in that, In step (4), the mass ratio of the paint to the paint liquid is 0.8-3:1000-1100, and the time for the paint to adhere to the paint liquid is 10-15 seconds.
7. The water-based dyeing process for Xiangyun yarn after sun-drying according to claim 1, characterized in that, The fixing solution in step (5) is prepared by mixing sodium ethylenediaminetetraacetate and acetic acid solution in a mass ratio of 2:5-6, wherein the mass fraction of acetic acid solution is 3-5% and the pH value of the fixing solution is 4-6.
8. The water-marbling dyeing process for Xiangyun yarn after sun-drying according to claim 1, characterized in that, The immersion temperature and time in step (5) are 30-40℃ and 15-30min, respectively.