A dyeing method for improving the dyeing performance of nylon fiber

A technology of nylon fiber and dyeing method, which is applied in the field of textile printing and dyeing processing, can solve problems such as the influence of nylon fiber application performance, lack of widespread attention, and damage to the strength of nylon fiber, so as to improve dyeing depth performance, reduce dyeing cost, physical and mechanical little effect on performance

CN106835765BActive Publication Date: 2019-06-14WUHAN TEXTILE UNIV
3 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2019-06-14

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention relates to a dyeing method for improving deep dyeing performance of polyamide fiber, and belongs to the technical field of textile printing and dyeing. The dyeing method comprises the following steps: adding disperse dye into a mixed solution of ethanol and water to obtain a dyeing solution, and dyeing the polyamide fiber in an ultrasonic environment, wherein by virtue of strong penetration of ethanol into the polyamide fiber, a synergistic effect is produced under the auxiliary action of ultrasonic, and a large number of dye molecules are carried into the free volume of the fiber so as to deeply and thoroughly dye the polyamide fiber. By the dyeing method, the dyeing temperature is low, the dyeing time is short, strength damage of the polyamide fiber in the dyeing process is alleviated, and the problem that the dyeing depth is not high when the disperse dye dyes the polyamide fiber is effectively solved; and the dyeing method is simple in process and strong in operability and is an efficient polyamide fiber dyeing method.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a dyeing method for improving the dyeing performance of nylon fibers, which belongs to the technical field of textile printing and dyeing processing. Background technique

[0002] Nylon fiber belongs to the category of polyamide fiber. The trade name is nylon. It has the characteristics of high strength and high elasticity. It is mainly used as the main raw material of elastic fabrics in the market, such as manufacturing swimwear, stockings, underwear and other textile products. Nylon fibers include polycaprolactam and polyhexamethylene adipamide, namely nylon 6 and nylon 66. Nylon fiber contains a large number of polar amino groups. Under certain conditions, it can be dyed with acid dyes, disperse dyes and other dyes. Nylon fibers dyed with acid dyes are bright in color, high in exhaustion rate, and easy to achieve the designed color.

[0003] When nylon fiber is dyed with acid dyes, the pH value of the dyeing environment is...

Examples

Embodiment 1

[0025] The object to be dyed is nylon 6 fiber, and its mass is 1g. Weigh 0.001g of disperse yellow RGFL, add it to a glass dyeing cup with a volume ratio of 7:3 of ethanol and water to prepare a dyeing solution, and put the nylon 6 fiber in Put it into the dyeing solution, cover the dyeing cup, place the dyeing cup in an ultrasonic generator for dyeing, the dyeing temperature is 60°C, the dyeing time is 20min, and the ultrasonic power is 1200 watts. After the dyeing is completed, the dyed finished product is obtained through soaping, washing and drying.

Embodiment 2

[0027] The object to be dyed is nylon 6 fiber, and its mass is 1g. Weigh 0.05g of disperse yellow RGFL, add it into a glass dyeing cup with a volume ratio of 5:5 of ethanol and water to prepare a dyeing solution, and put the nylon 6 fiber into Put it into the dyeing solution, cover the dyeing cup, place the dyeing cup in an ultrasonic generator for dyeing, the dyeing temperature is 70°C, the dyeing time is 25min, and the ultrasonic power is 1500 watts. After the dyeing is completed, the dyed finished product is obtained through soaping, washing and drying.

Embodiment 3

[0029] The object to be dyed is nylon 6 fiber, its mass is 1g, weigh 0.1g of disperse yellow RGFL, add it into the glass dyeing cup of 50mL ethanol and water mixed solution with a volume ratio of 3:7 to prepare dyeing solution, put nylon 6 fiber Put it into the dyeing solution, cover the dyeing cup, place the dyeing cup in an ultrasonic generator for dyeing, the dyeing temperature is 80°C, the dyeing time is 30min, and the ultrasonic power is 1800 watts. After the dyeing is completed, the dyed finished product is obtained through soaping, washing and drying.