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Alkaline pad dyeing method for nylon 56 and cellulose fiber blended fabric

A technology for cellulose fibers and dyeing methods, applied in dyeing methods, textiles and papermaking, etc., can solve problems such as lengthy processes, inconsistent fiber color and light, and difficulty in dyeing blended fabrics.

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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  • Alkaline pad dyeing method for nylon 56 and cellulose fiber blended fabric
  • Alkaline pad dyeing method for nylon 56 and cellulose fiber blended fabric
  • Alkaline pad dyeing method for nylon 56 and cellulose fiber blended fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0128] Embodiment 1, adopt vat dye suspension alkaline dyeing solution to pad dye nylon 56 fiber and cotton blended fabric

[0129] First take nylon 56 / cotton (60 / 40) blended fabric, 10cm×10cm, dyeing solution 100mL, prepare dyeing solution with vat blue RSN dye of 30g / L, add 3g / L slow dyeing agent NLJ, 5g / L in the dyeing solution salt to adjust the pH of the dye solution to 7.8. The dyeing liquid configuration is completed. At room temperature, the blended fabric is soaked in the dyeing liquid for 5 minutes by means of one dipping and one padding. After rolling the reducing solution (preparation of the reducing solution: 34g / L sodium hydroxide, 20g / L sodium hydroxide, bath ratio 1:30), the residual rolling rate is about 70%. After steaming at 100°C for 5 minutes, wash once with water at room temperature , oxidized at 40°C (1g / L 30% hydrogen peroxide, 2min), took out the sample and washed it once in hot water at 60°C and once in cold water at room temperature, and the pad dye...

Embodiment 2

[0133] Embodiment 2, adopt reactive dye basic pad dyeing nylon 56 fiber and viscose fiber blended fabric

[0134] First, take nylon 56 / viscose (55 / 45) blended fabric, 10cm × 10cm, dyeing solution 100mL, prepare dyeing solution with 15g / L Anuosu Brilliant Blue RV 100% dye, add retarder JV-905 5g / L, Yuanming powder 10g / L, pH value of the dyeing solution is 8.0. The dyeing liquid configuration is completed. At room temperature, the blended fabric is soaked in the dyeing liquid for 3 minutes by two dipping and two padding methods. The padding speed is controlled to 45m / min, the padding pressure is 0.23MPa, and the liquid rolling rate is about 90%. One immersion and one rolling color fixing solution (preparation of 100mL color fixing solution: add 15g / L sodium carbonate and treat for 5 minutes) to control the excess rate at about 75%. After the color fixing sample is baked at 95°C for 10 minutes, take it out in the Wash once in hot water at 85°C, once in cold water at room temper...

Embodiment 3

[0139] Embodiment 3, adopt direct dyestuff basic pad dyeing nylon 56 fiber and hemp fiber blended fabric

[0140] First, take nylon 56 / hemp (50 / 50) blended fabric, 10cm×10cm, dye liquor 100mL, prepare dye liquor with 40g / L direct turquoise blue B2RL dye, add leveling agent GC-230 5g / L in the dye liquor , Salt 8g / L, adjust the pH value of the dye solution to 8.0. The dyeing liquid configuration is completed. At room temperature, the blended fabric is soaked in the dyeing liquid for 5 minutes by two dipping and two padding methods. The padding speed is controlled to 35m / min. After steaming at 100°C for 5 minutes, take out the sample and wash it once in hot water at 60°C and once in cold water at room temperature, to complete the pad dyeing.

[0141] The apparent homochromaticity of the blended fabric after dyeing is shown in Table 6. The experimental data of direct dye pad dyeing test are shown in Table 4.

[0142] Table 4 Direct dyeing test experimental data

[0143]

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Abstract

The invention provides an alkaline pad dyeing method for blended fabric of nylon 56 and cellulose fibers. According to the method, a vat dye, a reactive dye, a direct dye and a sulfur dye are adoptedto carry out one-bath pad dyeing on the blended fabric of the nylon 56 fibers and the cellulose fibers, the pad dyeing of the blended fabric can be completed by adopting a set of dyes, after dyeing, the fabric is bright in color and dark in color, the friction resistance and the water resistance can reach more than grade 3-4, the color fastness to sunlight can reach more than grade 5, the processis simple, 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 pad 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 their molecular structure. The commonly used varieties are polycaprolactam for nylon 6, and hexamethylenediamine and polycaprolactam for nylon 66. Nylon 56 is a new type of polyamide fiber made of adipic acid polymerization. Unlike nylon 66, which is prepared from petroleum and other derivatives, its raw materials can be prepared from various types of starch and straw through bioengineering methods. Pentamethylenediamine is prepared by fermentation in cellulose, which can replace hexamethylenediamine due to its large quantity and low cost. Bio-based fibers have excellent characteristics such as green, environ...

Claims

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Application Information

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IPC IPC(8): D06P3/82D06P1/00D06P1/22D06P1/30D06P1/38
CPCD06P3/8219D06P1/38D06P1/22D06P1/30D06P1/00D06P1/0032
Inventor 郝新敏郭亚飞梁高勇刘阳夏鹏泽闫金龙乔荣荣
Owner THE QUARTERMASTER RES INST OF THE GENERAL LOGISTICS DEPT OF THE CPLA
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