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Nylon 56 and cellulose fiber blended fabric alkaline co-bath dip dyeing method

A cellulose fiber and dyeing method technology, which is applied in the field of alkaline same-bath dip dyeing and dyeing of nylon 56 and cellulose fiber blended fabrics, can solve the problems of difficult dyeing of blended fabrics, inconsistent fiber color and light, and high energy consumption.

Pending Publication Date: 2020-04-24
THE QUARTERMASTER RES INST OF THE GENERAL LOGISTICS DEPT OF THE CPLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It is difficult to dye traditional nylon 66 and cellulose fiber blended fabrics. Usually, two-bath methods such as disperse / reactive, disperse / direct, and acid / reactive are used for dyeing. Dyeing in an alkaline dyeing bath, and nylon basically does not dye under the same conditions, so the dyeing of two fiber blended fabrics needs to be done step by step, not only the process is lengthy, the energy consumption is too much, and it is easy to cause the shade of the two fibers in the blended fabric inconsistent

Method used

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  • Nylon 56 and cellulose fiber blended fabric alkaline co-bath dip dyeing method
  • Nylon 56 and cellulose fiber blended fabric alkaline co-bath dip dyeing method
  • Nylon 56 and cellulose fiber blended fabric alkaline co-bath dip dyeing method

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0094] Specific Example 1: Homochromic test of nylon / cotton (60 / 40) blended fabrics dyed with different vat dyes

[0095] In this embodiment, there are two kinds of blended fabrics: one is the nylon 56 / cotton blended fabric in the present invention, and the other is the commercially available nylon 66 and cotton blended fabric, and a comparative test is done.

[0096] Full bath reduction: the bath ratio is 1:5, take 2.5% (o.w.f) dye vat dye, 2g / L caustic soda, 3g / L hydrosulfite, and water at 50°C, reduce for 10min to prepare a reducing solution, which is prepared and used now;

[0097] Dip-dyeing dyeing process: add 1% (o.w.f) leveling agent MCH-312 and 2g / L yuan Mingfen, add 2g of the object to be dyed, heat up to 60°C at 2°C / min, keep the temperature for 40min, cool down and take out the sample, at 50°C Oxidize in 4g / L hydrogen peroxide for 15min, take out the sample and wash it with hot water at 50℃, soaping (soap flakes 3g / L, anhydrous sodium carbonate 3g / L, 50℃, 10min, ba...

Embodiment 2

[0101] Embodiment 2: Vat dye dry cylinder method reduction and exhaust dyeing nylon 56 / cotton (60 / 40) blended fabric

[0102] Dye drying cylinder reduction method: According to the bath ratio of 1:5, take Vat Red 6B dye dosage 6% (o.w.f), first add 2 / 3 of the total amount of caustic soda (5g / L), hydrosulfite (5g / L), 1 / 3 water, at 55°C, reduce for 10 minutes to prepare a reducing solution, which is prepared and used immediately;

[0103] Exhaust dyeing process: add 1.5% (o.w.f) leveling agent MCH-312 and 5g / L Yuanming powder, add the remaining 1 / 3 caustic soda, 1 / 3 hydrosulfite, 2 / 3 water, add 2g of the dyed material, and heat at 2°C / min to raise the temperature to 65°C, keep it warm for 40min, cool down and take out the sample, oxidize it in 4g / L hydrogen peroxide at 50°C for 15min, take out the sample and wash it with hot water at 60°C, soaping (soap flakes 3g / L, anhydrous sodium carbonate 3g / L L, 50°C, 10min, bath ratio 1:10), rinse with water at room temperature, and dry...

Embodiment 3

[0106] Embodiment 3: Vat dye full bath method reduction dyeing nylon 56 / cotton (60 / 40) blended fabric

[0107] Dye full-bath method reduction: according to the bath ratio of 1:5, take 3% (o.w.f) dye reduction RSN, the specified amount of 2g / L caustic soda, 3g / L hydrosulfite, and water at 55°C for 10 minutes to prepare a reduction solution. Ready to use;

[0108] Exhaust dyeing process: add 1.5% (o.w.f) leveling agent MCH-312 and 3g / L Yuanming powder, add 2g of the dyed material, heat up to 65°C at 2°C / min, keep it warm for 40min, take out the sample after cooling down, and set the temperature at 50°C Oxidation treatment in 4g / L hydrogen peroxide for 15min, take out the sample, rinse with hot water at 60°C, soap wash (soap flakes 3g / L, anhydrous sodium carbonate 3g / L, 50°C, 10min, bath ratio 1:10), rinse with normal temperature water, Let dry to finish staining.

[0109] The experimental results are shown in Table 3.

[0110] Referring to the above process flow, using differ...

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Abstract

The invention provides a nylon 56 and cellulose fiber blended fabric alkaline co-bath dip dyeing method. The dip dyeing method comprises the following steps that a to-be-dyed object is immersed in analkaline dye liquor for dyeing; the dye liquor comprises a dye and a dyeing auxiliary agent; the dye is selected from any of a reduced dye, a reactive dye, a direct dye and a vulcanization dye; and the pH value of the dye liquor is 7-10. After the alkaline one-bath dip dyeing process of the invention is performed, the color fastness test results of the blended fabric show that the fabric is resistant to friction, water washing, sunlight and the like, the results can meet the use requirements, the friction and water washing resistant level can reach grade 3-4 or above, the sunshine resistant color fastness can reach grade 5 or above, and the hot pressing resistant color fastness can reach grade 4 or above; and in addition, the process is simple, the two-bath dyeing of traditional blended fabrics is avoided, and energy conservation and emission reduction are achieved.

Description

technical field [0001] The invention belongs to the field of textile dyeing and finishing, and in particular relates to an alkaline same-bath dip-dyeing and dyeing method for nylon 56 and cellulose fiber blended fabrics. Background technique [0002] Nylon (nylon) is the first synthetic fiber that appeared in the world. It has many varieties, but all of them contain the same amide group in the molecular structure. The commonly used varieties are polycaprolactam polyamide 6, hexamethylene diamine and polyamide 66. Polyamide 56 is a new type of polyamide fiber, which is produced by polymerization of adipic acid. Unlike nylon 66, which is prepared from derivatives such as petroleum, its raw materials can be prepared from bio-based materials. Pentylenediamine is prepared by fermentation in cellulose, which can replace hexamethylenediamine due to its large volume and low cost. Bio-based fibers have excellent characteristics such as greenness, environmental friendliness, renewabl...

Claims

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Application Information

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IPC IPC(8): D06P3/85D06P1/22D06P1/30D06P1/38D06P1/00
CPCD06P3/8219D06P1/227D06P1/38D06P1/30D06P1/0032
Inventor 郝新敏郭亚飞李茂辉闫金龙乔荣荣
Owner THE QUARTERMASTER RES INST OF THE GENERAL LOGISTICS DEPT OF THE CPLA
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