Gradient color fabric and method for manufacturing the same

Abstract

The embodiment of the application discloses a kind of gradual color fabric and its preparation method, the method comprises: according to volume proportion, concentrated ammonia and liquid ammonia are mixed, obtain multiple volume equal and moisture content different treatment liquid;In each treatment liquid, dip a portion of cellulose yarn, after dipping preset time, carry out drying, obtain multiple dip treatment after cellulose yarn;Wherein, the volume mass of cellulose yarn dipped by each treatment liquid is identical;Based on moisture content from less to more processing order, dip treatment after cellulose yarn is segmented weaving, obtain cellulose fabric;The cellulose fabric is dyed, and then without controlling dyeing amount of dye on fabric in dyeing process, the dyeing process and time of gradual color fabric are reduced, the preparation efficiency of gradual color fabric is greatly improved.Meanwhile, deep color gradual color effect that other dyeing methods that can realize fabric gradual color effect cannot achieve can also be realized.

Description

Technical Field

[0001] This application relates to the field of textile technology, and in particular to a gradient color fabric and its preparation method. Background Technology

[0002] Gradient fabrics, with their unique style of gradually changing color or a single color gradually fading, are highly favored by consumers. There are various methods for producing gradient fabrics, primarily including printing and dyeing. In printing, both flatbed printing using high-mesh screen printing and digital printing can produce gradient fabrics. In dyeing, dip dyeing and roll dyeing can achieve gradient effects. The former controls the time different parts of the fabric spend in the dye bath, resulting in varying amounts of dye absorption and fixation, thus creating a gradient effect. The latter utilizes the slow penetration of dye to one side of the bath while it remains still, thus creating a gradient. For delicate gradient fabrics, hand-painting can also be used.

[0003] However, the above-mentioned gradient color dyeing methods all have technical problems such as multiple dyeing steps, long dyeing time, poor repeatability of gradient color effect, and difficulty in controlling the effect. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this application provides a gradient fabric and its preparation method, aiming to solve the technical problems of complex and time-consuming dyeing processes in the manufacture of gradient fabrics in the prior art.

[0005] To address the aforementioned problems, in a first aspect, this application provides a method for preparing a gradient color fabric, comprising:

[0006] Concentrated ammonia water and liquid ammonia are mixed according to the volume ratio to obtain multiple treatment solutions with equal volume and different water contents.

[0007] One sample of cellulose yarn was impregnated in each treatment solution for a preset time and then dried to obtain multiple samples of impregnated cellulose yarn; wherein, the volume mass of the cellulose yarn impregnated in each treatment solution was the same.

[0008] Based on the treatment sequence from low to high moisture content, the impregnated cellulose yarn is woven in segments to obtain cellulose fabric.

[0009] The cellulose fabric is dyed to obtain a monochrome gradient fabric.

[0010] Furthermore, in the method for preparing the gradient fabric, the ammonia content in the concentrated ammonia solution is 25%.

[0011] Furthermore, in the method for preparing the gradient fabric, the volume ratio of the concentrated ammonia to the liquid ammonia is (0-50):(50-100).

[0012] Furthermore, in the method for preparing the gradient fabric, the water content of the treatment liquid is 3-10%.

[0013] Furthermore, in the method for preparing the gradient color fabric, the cellulose yarn is one or more of cotton yarn, linen yarn, and viscose yarn.

[0014] Furthermore, in the method for preparing the gradient fabric, the cellulose yarn is immersed in the treatment solution for more than 10 seconds.

[0015] Furthermore, in the method for preparing the gradient color fabric, the weaving can be either woven or knitted.

[0016] Furthermore, in the method for preparing the gradient color fabric, the weaving is either woven or knitted; or / and

[0017] The dyeing can be either immersion dyeing or pad dyeing.

[0018] Furthermore, in the method for preparing the gradient fabric, the step of weaving the impregnated cellulose yarn in segments based on a treatment sequence from low to high moisture content to obtain the cellulose fabric includes:

[0019] Based on the processing order from low to high moisture content, the unimpregnated cellulose yarn and the impregnated cellulose yarn are woven in segments to obtain cellulose fabric.

[0020] Furthermore, in the method for preparing the gradient fabric, the dye used to dye the cellulose fabric is a reactive dye.

[0021] Secondly, this application also provides a gradient fabric, which is prepared by the method for preparing gradient fabric described in the first aspect.

[0022] The gradient fabric and its preparation method provided in this application involve mixing concentrated ammonia and liquid ammonia in a volume ratio to obtain multiple treatment solutions of equal volume but different water contents. A portion of cellulose yarn is then impregnated in each treatment solution for a preset time, followed by drying to obtain multiple portions of impregnated cellulose yarn. Subsequently, based on a treatment sequence from lowest to highest water content, the impregnated cellulose yarn is woven in segments to obtain a cellulose fabric. Finally, the cellulose fabric is dyed to obtain a single-color gradient fabric. This eliminates the need to control the amount of dye applied to the fabric during the dyeing process, reducing the dyeing steps and time required for gradient fabric production and significantly improving the efficiency of gradient fabric manufacturing. Furthermore, it can achieve dark gradient effects that cannot be achieved by other dyeing methods that can produce gradient fabric effects. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a knitted plain weave structure diagram of the gradient color fabric provided in the embodiments of this application.

[0025] Among them, the yarns corresponding to symbols 1, 2, 3, 4, 5, and 6 are the yarns that have passed through bottle 1, bottle 2, bottle 3, bottle 4, bottle 5, and the untreated yarn, respectively. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0028] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0029] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0030] To improve the efficiency of manufacturing gradient fabrics, this application provides a method for preparing gradient fabrics, comprising:

[0031] Concentrated ammonia water and liquid ammonia are mixed according to the volume ratio to obtain multiple treatment solutions with equal volume and different water contents.

[0032] One sample of cellulose yarn was impregnated in each treatment solution for a preset time and then dried to obtain multiple samples of impregnated cellulose yarn; wherein, the volume mass of the cellulose yarn impregnated in each treatment solution was the same.

[0033] Based on the treatment sequence from low to high moisture content, the impregnated cellulose yarn is woven in segments to obtain cellulose fabric.

[0034] The cellulose fabric is dyed to obtain a monochrome gradient fabric.

[0035] Specifically, this application mixes concentrated ammonia and liquid ammonia in a volume ratio to prepare liquid ammonia with different water contents. Cellulose yarn is then immersed in liquid ammonia with different water contents. The cellulose yarn treated in liquid ammonia with different water contents is then woven into fabric in sections in sequence, and then dyed to achieve a single-color gradient effect on the fabric.

[0036] The concentrated ammonia solution contains 25% ammonia, and the water content in the treatment solution is 3-10%, specifically 3%, 5%, 7%, and 10%. This application mixes the concentrated ammonia solution and liquid ammonia according to volume ratios to obtain multiple treatment solutions of equal volume but different water contents. For example, 10 ml of concentrated ammonia solution is mixed with 90 ml of liquid ammonia to obtain 100 ml of treatment solution; or 15 ml of concentrated ammonia solution is mixed with 85 ml of liquid ammonia to obtain 100 ml of treatment solution; or 5 ml of concentrated ammonia solution is mixed with 95 ml of liquid ammonia to obtain 100 ml of treatment solution.

[0037] In some embodiments, the volume ratio of concentrated ammonia to liquid ammonia is (0-50):(50-100). Preferably, the volume ratio of concentrated ammonia to liquid ammonia is (4-13.33):(86.67-96).

[0038] In some embodiments, the cellulose yarn is one or more of cotton yarn, linen yarn, and viscose yarn.

[0039] In some embodiments, the cellulose yarn is immersed in the treatment solution for a time greater than 10 seconds. Preferably, the cellulose yarn is immersed in the treatment solution for a time of 60 seconds.

[0040] In some embodiments, the weaving is either woven or knitted. Preferably, the impregnated cellulose yarn is woven in sections using a knitting method.

[0041] In some embodiments, the dyeing is either immersion dyeing or pad dyeing. For cellulose fabrics, immersion dyeing is preferred.

[0042] In some embodiments, the dye used for dyeing the cellulose fabric is a reactive dye. Preferably, the dye used for dyeing the cellulose fabric is a medium-temperature reactive dye.

[0043] In some embodiments, the process of weaving the impregnated cellulose yarn in segments based on a treatment sequence from low to high moisture content to obtain a cellulose fabric includes:

[0044] Based on the processing order from low to high moisture content, the unimpregnated cellulose yarn and the impregnated cellulose yarn are woven in segments to obtain cellulose fabric.

[0045] In some embodiments, this application also provides a gradient fabric, which is prepared by the gradient fabric preparation method described above.

[0046] The gradient fabric and its preparation method provided in this application exhibit higher stability in dyeing properties of yarns by controlling different dyeing properties with varying moisture contents in liquid ammonia compared to controlling these properties through immersion time in pure liquid ammonia, resulting in better dyeing reproducibility. Furthermore, the gradient effect can be achieved through either immersion dyeing or pad dyeing, which, compared to existing dyeing methods for achieving gradient effects, results in shorter dyeing times and simpler procedures. Additionally, the application improves dye uptake by treating the fabric with liquid ammonia of varying moisture contents, enabling the achievement of deep gradient effects that cannot be achieved by other dyeing methods that can produce gradient colors.

[0047] The following examples illustrate the production method of gradient color fabric according to the embodiments of this application.

[0048] Example 1

[0049] Add 1000ml of liquid ammonia to five glass bottles: bottle 1, bottle 2, bottle 3, bottle 4, bottle 5, bottle 5, bottle 6, bottle 7, bottle 8, bottle 9, bottle 1, bottle 1, bottle 2, bottle 3, bottle 4, bottle 5, bottle 6, bottle 7, bottle 8, bottle 9, bottle 9, bottle 1, bottle 1, bottle 9, bottle 1, bottle 1, bottle 1, bottle 2, bottle 9, bottle 1 ...

[0050] Take five 20g portions of ramie yarn and add them to the five bottles containing liquid ammonia. Soak for 60 seconds and then dry.

[0051] The dried yarn and untreated ramie yarn are woven into a plain weave fabric in sections. The ramie yarns impregnated with bottles 1, 2, 3, 4, and 5, and those not impregnated, are knitted continuously in sequence using a flat knitting machine to form a knitted fabric; the fabric consists of 6 sections, each with 4 rows, as shown below. Figure 1 As shown.

[0052] Cut 4g of woven ramie fabric (containing 6 segments) for dyeing. Add 0.12g of Reactive Red 195 to 200ml of water to prepare the dye solution. Immerse the cut ramie fabric in the dye solution at room temperature and dye for 10 minutes. Then add 8g of sodium chloride and dye for another 10 minutes. Raise the temperature to 60℃ at a rate of 2℃ / min, add 2g of sodium carbonate, and keep warm for 30 minutes. Cool down to 30℃, remove the ramie fabric, soap it, and dry it to complete the production of the gradient ramie fabric.

[0053] The apparent color value (K / S) of different sections of yarn was measured using a colorimeter. The K / S values ​​of different sections of yarn are listed in Table 1.

[0054] Table 1. K / S values ​​of ramie fabric dyed with Reactive Red 195

[0055]

[0056] Example 2

[0057] Add 1000ml of liquid ammonia to five glass bottles: bottle 1, bottle 2, bottle 3, bottle 4, bottle 5, bottle 5, bottle 6, bottle 7, bottle 8, bottle 9, bottle 1, bottle 1, bottle 2, bottle 3, bottle 4, bottle 5, bottle 6, bottle 7, bottle 8, bottle 9, bottle 9, bottle 1, bottle 1, bottle 9, bottle 1, bottle 1, bottle 1, bottle 2, bottle 9, bottle 1 ...

[0058] Take five 20g portions of ramie yarn and add them to the five bottles containing liquid ammonia. Soak for 60 seconds and then dry.

[0059] The dried yarn and untreated ramie yarn are woven into a plain weave fabric in sections. The ramie yarns impregnated with bottles 1, 2, 3, 4, and 5, and those not impregnated, are knitted continuously in sequence using a flat knitting machine to form a knitted fabric; the fabric consists of 6 sections, each with 4 rows, as shown below. Figure 1 As shown.

[0060] Cut 4g of woven ramie fabric (containing 6 segments) for dyeing. Add 0.12g of Reactive Blue 194 to 200ml of water to prepare the dye solution. Immerse the cut ramie fabric in the dye solution at room temperature and dye for 10 minutes. Then add 8g of sodium chloride and dye for another 10 minutes. Raise the temperature to 60℃ at a rate of 2℃ / min, add 2g of sodium carbonate, and keep warm for 30 minutes. Cool down to 30℃, remove the ramie fabric, soap it, and dry it to complete the production of the gradient ramie fabric.

[0061] The apparent color value (K / S) of different sections of yarn was measured using a colorimeter. The K / S values ​​of different sections of yarn are listed in Table 2.

[0062] Table 2. K / S values ​​of ramie fabric dyed with Reactive Blue 194

[0063]

[0064]

[0065] Example 3

[0066] Add 1000ml of liquid ammonia to five glass bottles: bottle 1, bottle 2, bottle 3, bottle 4, bottle 5, bottle 5, bottle 6, bottle 7, bottle 8, bottle 9, bottle 1, bottle 1, bottle 2, bottle 3, bottle 4, bottle 5, bottle 6, bottle 7, bottle 8, bottle 9, bottle 9, bottle 1, bottle 1, bottle 9, bottle 1, bottle 1, bottle 1, bottle 2, bottle 9, bottle 1 ...

[0067] Take five 20g portions of cotton yarn and add them to the five bottles containing liquid ammonia. Soak for 80 seconds and then dry.

[0068] The dried yarn and untreated cotton yarn are woven into a plain weave fabric in sections. The cotton yarns impregnated with bottles 1, 2, 3, 4, and 5, and those not impregnated, are knitted continuously in sequence using a flat knitting machine to form a knitted fabric; the fabric consists of 6 sections, each with 4 rows, as shown below. Figure 1 As shown.

[0069] Cut 4g of woven cotton fabric (containing 6 segments) for dyeing. Add 0.12g of Reactive Red 195 to 200ml of water to prepare the dye solution. Immerse the cut cotton fabric in the dye solution at room temperature and dye for 10 minutes. Then add 8g of sodium chloride and dye for another 10 minutes. Raise the temperature to 60℃ at a rate of 2℃ / min, add 2g of sodium carbonate, and keep warm for 30 minutes. Cool down to 30℃, remove the cotton fabric, soap it, and dry it to complete the production of the gradient cotton fabric.

[0070] The apparent color value (K / S) of different sections of yarn was measured using a colorimeter. The K / S values ​​of different sections of yarn are listed in Table 3.

[0071] Table 3. K / S values ​​of Reactive Red 195 dyed cotton fabric

[0072]

[0073] Example 4

[0074] Add 1000ml of liquid ammonia to five glass bottles: bottle 1, bottle 2, bottle 3, bottle 4, bottle 5, bottle 5, bottle 6, bottle 7, bottle 8, bottle 9, bottle 1, bottle 1, bottle 2, bottle 3, bottle 4, bottle 5, bottle 6, bottle 7, bottle 8, bottle 9, bottle 9, bottle 1, bottle 1, bottle 9, bottle 1, bottle 1, bottle 1, bottle 2, bottle 9, bottle 1 ...

[0075] Take five 20g portions of cotton yarn and add them to the five bottles containing liquid ammonia. Soak for 80 seconds and then dry.

[0076] The dried yarn and untreated cotton yarn are woven into a plain weave fabric in sections. The cotton yarns impregnated with bottles 1, 2, 3, 4, and 5, and those not impregnated, are knitted continuously in sequence using a flat knitting machine to form a knitted fabric; the fabric consists of 6 sections, each with 4 rows, as shown below. Figure 1 As shown.

[0077] Cut 4g of woven cotton fabric (containing 6 segments) for dyeing. Add 0.12g of Reactive Blue 194 to 200ml of water to prepare the dye solution. Immerse the cut cotton fabric in the dye solution at room temperature and dye for 10 minutes. Then add 8g of sodium chloride and dye for another 10 minutes. Raise the temperature to 60℃ at a rate of 2℃ / min, add 2g of sodium carbonate, and keep warm for 30 minutes. Cool down to 30℃, remove the cotton fabric, soap it, and dry it to complete the production of the gradient cotton fabric.

[0078] The apparent color value (K / S) of different sections of yarn was measured using a colorimeter. The K / S values ​​of different sections of yarn are listed in Table 4.

[0079] Table 4. K / S values ​​of Reactive Blue 194 dyed cotton fabric

[0080]

[0081] Example 5

[0082] Add 1000ml of liquid ammonia to five glass bottles: bottle 1, bottle 2, bottle 3, bottle 4, bottle 5, bottle 5, bottle 6, bottle 7, bottle 8, bottle 9, bottle 1, bottle 1, bottle 2, bottle 3, bottle 4, bottle 5, bottle 6, bottle 7, bottle 8, bottle 9, bottle 9, bottle 1, bottle 1, bottle 9, bottle 1, bottle 1, bottle 1, bottle 2, bottle 9, bottle 1 ...

[0083] Take five 20g portions of ramie yarn and add them to the five bottles containing liquid ammonia. Soak for 60 seconds and then dry.

[0084] The dried yarn and untreated ramie yarn are woven into a plain weave fabric in sections. The ramie yarns impregnated with bottles 1, 2, 3, 4, and 5, and those not impregnated, are knitted continuously in sequence using a flat knitting machine to form a knitted fabric; the fabric consists of 6 sections, each with 4 rows, as shown below. Figure 1 As shown.

[0085] Cut 4g of woven ramie fabric (containing 6 segments) for dyeing. Add 0.06g of Reactive Red 195 and 0.06g of Reactive Blue 194 to 200ml of water to prepare the dye solution. Immerse the cut ramie fabric in the dye solution at room temperature and dye for 10 minutes. Then add 8g of sodium chloride and dye for another 10 minutes. Increase the temperature to 60℃ at a rate of 2℃ / min, add 2g of sodium carbonate, and maintain the temperature for 30 minutes. Cool to 30℃, remove the ramie fabric, soap it, and then dry it to complete the production of the gradient ramie fabric.

[0086] The apparent color value (K / S) of different sections of yarn was measured using a colorimeter. The K / S values ​​of different sections of yarn are listed in Table 5.

[0087] Table 5. K / S values ​​of ramie fabrics dyed with Reactive Red 195 and Reactive Blue 194 (1:1).

[0088]

[0089] Example 6

[0090] Add 1000ml of liquid ammonia to five glass bottles: bottle 1, bottle 2, bottle 3, bottle 4, bottle 5, bottle 5, bottle 6, bottle 7, bottle 8, bottle 9, bottle 1, bottle 1, bottle 2, bottle 3, bottle 4, bottle 5, bottle 6, bottle 7, bottle 8, bottle 9, bottle 9, bottle 1, bottle 1, bottle 9, bottle 1, bottle 1, bottle 1, bottle 2, bottle 9, bottle 1 ...

[0091] Take five 20g portions of cotton yarn and add them to the five bottles containing liquid ammonia. Soak for 80 seconds and then dry.

[0092] The dried yarn and untreated cotton yarn are woven into a plain weave fabric in sections. The cotton yarns impregnated with bottles 1, 2, 3, 4, and 5, and those not impregnated, are knitted continuously in sequence using a flat knitting machine to form a knitted fabric; the fabric consists of 6 sections, each with 4 rows, as shown below. Figure 1 As shown.

[0093] Cut 4g of woven cotton fabric (containing 6 segments) for dyeing. Add 0.06g of Reactive Red 195 and 0.06g of Reactive Blue 194 to 200ml of water to prepare the dye solution. Immerse the cut cotton fabric in the dye solution at room temperature and dye for 10 minutes. Then add 8g of sodium chloride and dye for another 10 minutes. Raise the temperature to 60℃ at a rate of 2℃ / min, add 2g of sodium carbonate, and keep warm for 30 minutes. Cool down to 30℃, remove the cotton fabric, soap it, and dry it to complete the production of the gradient cotton fabric.

[0094] The apparent color value (K / S) of different sections of yarn was measured using a colorimeter. The K / S values ​​of different sections of yarn are listed in Table 6.

[0095] Table 6. K / S values ​​of cotton fabrics dyed with Reactive Red 195 and Reactive Blue 194 (1:1)

[0096]

[0097] In summary, the gradient fabric and its preparation method provided in this application involve mixing concentrated ammonia and liquid ammonia in a volume ratio to obtain multiple treatment solutions of equal volume but different water contents. A portion of cellulose yarn is then impregnated in each treatment solution for a preset time, followed by drying to obtain multiple portions of impregnated cellulose yarn. Subsequently, based on a treatment sequence from lowest to highest water content, the impregnated cellulose yarn is woven in segments to obtain a cellulose fabric. Finally, the cellulose fabric is dyed to obtain a single-color gradient fabric. This eliminates the need to control the amount of dye applied to the fabric during the dyeing process, reducing the dyeing steps and time required for gradient fabric production and significantly improving the efficiency of gradient fabric manufacturing. Furthermore, it can achieve dark gradient effects that other dyeing methods for creating gradient fabric effects cannot achieve.

[0098] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for preparing a gradient color fabric, characterized in that, include: Concentrated ammonia and liquid ammonia are mixed according to a volume ratio to obtain multiple treatment solutions with equal volumes but different water contents; the water content of the treatment solution is 3-10%, the ammonia content of the concentrated ammonia is 25%, and the volume ratio of the concentrated ammonia to the liquid ammonia is (0-50):(50-100). One portion of cellulose yarn is impregnated in each treatment solution for a preset time and then dried to obtain multiple portions of impregnated cellulose yarn; wherein, the volume mass of the cellulose yarn impregnated in each treatment solution is the same, and the cellulose yarn is impregnated in the treatment solution for more than 10 seconds. Based on the processing order from low to high moisture content, the unimpregnated cellulose yarn and the impregnated cellulose yarn are woven in segments to obtain cellulose fabric. The cellulose fabric is dyed to obtain a monochrome gradient fabric.

2. The method for preparing gradient color fabric according to claim 1, characterized in that, The cellulose yarn is one or more of cotton yarn, linen yarn, and viscose yarn.

3. The method for preparing gradient color fabric according to claim 1, characterized in that, The weaving can be either woven or knitted; or / and The dyeing can be either immersion dyeing or pad dyeing.

4. The method for preparing gradient color fabric according to claim 1, characterized in that, The dye used to dye the cellulose fabric is a reactive dye.

5. A gradient color fabric, characterized in that, The gradient fabric is prepared by the method described in any one of claims 1-4.

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