Preparation process of forged color yarn fabric

Abstract

The invention provides a forging color yarn fabric preparation technology, and relates to the field of dyeing and finishing technology and textile design, and the forging color yarn fabric preparation technology comprises the following steps: S1, yarn pretreatment: immersing dyed yarns in a high-concentration sodium carbonate solution, and dyeing at a certain liquid carrying rate; s2, one-bath non-aqueous medium dyeing: adding a dye, a non-aqueous medium and the dyed yarn into the dye vat in one bath, then heating to 35 + / -3 DEG C, keeping the temperature for 40 minutes, then slowly heating to 75 + / -3 DEG C, and keeping the temperature for 40 minutes; after dyeing is finished, soap boiling, hot and cold water washing and airing are conducted. S3, designing and weaving the dyed yarns: designing a fabric weave looming diagram on dobby CAD software, and weaving the dyed yarns. Yarn dyeing and weaving are combined, a non-aqueous medium is innovatively selected for dyeing, and the forged color yarn fabric with the unique style is designed and woven. Salt-free and waterless dyeing is achieved, and the forged color yarn fabric is in a fault gradual change style. And the method has the outstanding advantages of simple process flow, water saving and environmental protection.

Description

Technical Field

[0001] This invention relates to the fields of dyeing and finishing technology and textile development, specifically to a process for preparing satin yarn fabric. Background Technology

[0002] Satin yarn fabric, as a new type of fancy fabric, is highly favored by consumers due to its unique style. Currently, the production of satin yarn generally involves dyeing cotton yarn with water as the dyeing medium before spinning. The dyeing process for satin yarn is relatively complex, requiring the addition of a large amount of auxiliaries to improve the dye uptake rate. Furthermore, the dyeing process generates a significant amount of wastewater, which is difficult to treat. Summary of the Invention

[0003] The purpose of this invention is to provide a process for preparing satin yarn fabric. This process selects a non-aqueous medium for dyeing, and by controlling different dyeing process conditions and adding a certain amount of alkali agent, it can achieve an effect similar to traditional water dyeing.

[0004] To achieve the above-mentioned objectives, the technical solution adopted by this invention is as follows: The manufacturing process of satin yarn fabric includes the following steps: S1. Yarn pretreatment: Immerse the dyed yarn in a high-concentration sodium carbonate solution and dye it with a certain liquid carry-over rate.

[0005] S2. One-bath dyeing with non-aqueous medium: Add reactive dye, non-aqueous medium, and dyed yarn to the dye bath, then raise the temperature to 30-40℃ and keep it at that temperature for 40 minutes. Next, slowly raise the temperature to 70-80℃ and keep it at that temperature for 40 minutes. After dyeing, soap the yarn, wash it with hot and cold water, and then air dry it.

[0006] S3. Dyed yarn design and weaving: Design the fabric structure on the machine using multi-arm CAD software, and then weave the dyed yarn.

[0007] Preferably, the concentration of the high-concentration sodium carbonate solution in step S1 is 20-50 g / L, and the soaking time is 20-60 min.

[0008] Preferably, the staining band rate of the sodium carbonate solution in step S1 is 90-150%.

[0009] Preferably, the anhydrous medium in step S2 is an oily substance such as liquid paraffin (LP), decamethylcyclopentasiloxane, or vegetable oil, and the dyeing bath ratio is 1:40.

[0010] Preferably, the dye is a reactive dye, a direct dye, a vat dye, or a disperse dye.

[0011] Preferably, the soaping reagent in step S2 is anhydrous sodium carbonate or soap powder. The amount of anhydrous sodium carbonate or soap powder used is 1-5 g / L.

[0012] Preferably, the fabric structure in step S3 is plain weave, twill weave, or satin weave.

[0013] Preferably, in step S3, the weft yarn used in the machine weaving is non-aqueous dyed yarn, and the warp yarn is commercially available polyester or cotton yarn.

[0014] Compared with the prior art, the present invention has the following advantages: This invention combines yarn dyeing and weaving, innovatively using a non-aqueous medium, liquid paraffin (LP), for dyeing. The dyed yarn exhibits a significant layered, gradational style with distinct white areas. Furthermore, the dyed yarn possesses colorfastness comparable to that of a water bath. The dyeing process is salt-free and low-water, and the liquid paraffin is easy to recover and can be recycled with minimal impact on subsequent dyeing processes, aligning with sustainable and environmentally friendly dyeing and finishing practices. This invention utilizes liquid paraffin reactive dyed yarn for machine weaving, requiring no machine modifications, making it highly practical. The woven fabric displays a layered, gradational appearance, conforming to current trends in new satin yarn products, and exhibiting colorfastness to rubbing and washing at levels 3-4 and above. Attached Figure Description

[0015] Figure 1 The dyeing process curves for Examples 1-2 of this invention are shown in the diagram. Figure 2 The above are the fabric weaving machine diagrams for Embodiments 1-2 of the present invention. Figure 3 This is a photograph of the actual colored yarn from Embodiment 1 of the present invention. Figure 4 The images shown are actual pictures of the colored yarn fabrics from Embodiments 1-2 of this invention. Detailed Implementation Example

[0016] This embodiment provides a process for preparing satin yarn fabric, including the following steps: S1. Yarn pretreatment: Immerse the dyed pure cotton yarn in a 30g / L sodium carbonate solution for 30min and dye it with a 130% liquid-carrying rate.

[0017] S2. One-bath dyeing in anhydrous medium: Add reactive yellow B-4RFN / reactive turquoise blue B-BGFN / reactive red 3BS to the dye bath, with a dye concentration of 2% (owf). Use anhydrous liquid paraffin LP as the dyeing medium, with a dyeing bath ratio of 1:40. Dye pure cotton yarn, then raise the temperature to 35±3℃ at 2℃ / min and hold for 40 min, followed by a slow increase to 75±3℃ at 2℃ / min and holding for 40 min. After dyeing, perform soaping under the following conditions: anhydrous sodium carbonate 3 g / L, standard soap powder 3 g / L, bath ratio 1:50, temperature 95℃, time 10 min. Then wash with hot and cold water and air dry.

[0018] S3. Dyed Yarn Design and Weaving: Design the fabric structure on the loom using multi-arm CAD software. The fabric structure includes plain weave, twill weave, and satin weave. The weft yarn is selected from pure cotton yarn dyed with anhydrous liquid paraffin (LP), and the warp yarn is selected from polyester yarn. Weaving is carried out using a small-scale loom. Example

[0019] This embodiment provides a process for preparing satin yarn fabric, including the following steps: S1. Yarn pretreatment: Immerse the dyed polyester-cotton blended yarn in a 30g / L sodium carbonate solution for 30min, and dye it with a 130% liquid carry-over rate.

[0020] S2. One-bath dyeing in anhydrous medium: Add reactive yellow B-4RFN / reactive turquoise blue B-BGFN / reactive red 3BS to the dye bath, with a dye concentration of 2% (owf). Use anhydrous liquid paraffin LP as the dyeing medium, with a dyeing bath ratio of 1:40. Dye the polyester-cotton blended yarn, then raise the temperature to 35±3℃ at 2℃ / min and hold for 40 min, followed by a slow increase to 75±3℃ at 2℃ / min and holding for 40 min. After dyeing, perform soaping under the following conditions: anhydrous sodium carbonate 3 g / L, standard soap powder 3 g / L, bath ratio 1:50, temperature 95℃, time 10 min. Then wash with hot and cold water and air dry.

[0021] S3. Dyed Yarn Design and Weaving: Design the fabric structure on the loom using multi-arm CAD software. The fabric structure includes plain weave, twill weave, and satin weave. The weft yarn is selected from polyester-cotton blended yarn dyed with anhydrous liquid paraffin (LP), and the warp yarn is polyester yarn. Weaving is carried out using a small-scale loom.

[0022] Color fastness tests were conducted on the colored yarn fabrics from Examples 1-2, and the results are as follows.

[0023] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. The present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A process for preparing satin yarn fabric, characterized in that: Includes the following steps: S1. Yarn Pretreatment: Immerse the dyed yarn in a high-concentration sodium carbonate solution and dye it with a certain liquid carry-over rate. S2. One-Bath Dyeing with Non-Aqueous Medium: Add reactive dye, non-aqueous medium, and dyed yarn to the dye bath, then raise the temperature to 30-40℃ and hold for 40 minutes, followed by a slow increase to 70-80℃ and holding for 40 minutes. After dyeing, soap the yarn, wash with hot and cold water, and air dry. S3. Dyed Yarn Design and Weaving: Design the fabric structure on the machine using multi-arm CAD software, and then weave the dyed yarn.

2. The process for preparing a colored yarn fabric according to claim 1, characterized in that: The high-concentration sodium carbonate solution in step S1 has a concentration of 20-50 g / L and a soaking time of 20-60 min.

3. The process for preparing a colored yarn fabric according to claim 1, characterized in that: In step S1, the staining band rate of the sodium carbonate solution is 90-150%.

4. The process for preparing a colored yarn fabric according to claim 1, characterized in that: In step S2, the anhydrous medium is an oily substance such as liquid paraffin (LP), decamethylcyclopentasiloxane, or vegetable oil, and the dyeing bath ratio is 1:

40.

5. The process for preparing a colored yarn fabric according to claim 1, characterized in that: The dyes are reactive dyes, direct dyes, vat dyes, and disperse dyes.

6. The process for preparing a colored yarn fabric according to claim 1, characterized in that: In step S2, the soaping reagent is anhydrous sodium carbonate and soap powder. The amount of anhydrous sodium carbonate and soap powder used is 1-5 g / L.

7. The process for preparing a colored yarn fabric according to claim 1, characterized in that: In step S3, the fabric structure is plain weave, twill weave, or satin weave.

8. The process for preparing a colored yarn fabric according to claim 1, characterized in that: In step S3, the weft yarn used in the machine weaving is non-aqueous dyed yarn, and the warp yarn is commercially available polyester or cotton yarn.

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