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DYEING PROCESSES FOR ELASTIC NYLON YARN

Views:304     Author:Site Editor     Publish Time: 2019-07-19      Origin:Site


About Nylon Yarn


Elastic nylon yarn is a kind of elastisch nylon yarn which is made of Polyamide filament. It has the characteristics of high strength, good wear resistance, light specific gravity and beautiful appearance. It has been widely used as textile raw materials.


Elastic nylon yarn is the same as polyester filament yarns. They are similar in structure to natural protein fibers. So it is applicable to a wide range of dyeing, including basic dyes, acid dyes, reactive dyes, disperse dyes, cation dyes, vat dyes, direct dyes and so on. Because of the special nature of this fiber, different methods are needed when different dyes are used. The amount of dye absorbed during dyeing is also different due to the difference of fiber fiber. Therefore, samples should be prepared in advance to prevent uneven dyeing.


color nylon yarn

Nylon Yarn Dyeing


According to the test situation, the following dyeing techniques are mainly introduced.



Disperse Dyes


The advantage of this dyeing process is that the dyeing is more uniform, so it is more popular when dyeing light colors.

The dyeing process is: Dye,wash,mellowing,dehydration,clear up, and dry.

Equipment: high temperature and high pressure yarn dyeing machine



Neutral Or Acid Dyes


Due to the use of neutral or acid dyes dyeing elastic nylon yarn, its color is more bright, better fastness, better chromatography, and its process is relatively simple, therefore, choose it more, if the color fixing after dyeing, can improve the wet treatment fastness. 

The dyeing process is as follows: Dye,wash,mellowing,dehydration,clear up and dry.

Equipment: high temperature and high pressure yarn dyeing machine



Direct Dyes


It is not widely used because the color of direct dyes is not bright enough.

As a result of the general direct dye dyeing effect is not too bright color, so the use is not wide.

The dyeing process is: Dye,wash,mellowing,dehydration,clear up, and dry.

Equipment: high temperature and high pressure yarn dyeing machine


nylon fabrics

Reactive Dyes


Reactive dyes have bright color and good levelness, but due to the limitations of dyeing chromatography, they are only used in red.

The dyeing process is: Dye,wash,mellowing,dehydration,clear up and dry.

Equipment: high temperature and high pressure yarn dyeing machine.



Color Nylon Yarn


The selection of dyes in the dyeing of elastic polyamide filament is the same as other fibers. Not only to consider the levelness of dye, but also consider the durability of dyeing. After experiments, it can be considered that disperse dyes are the best for light color dyeing. Use neutral or acid dyes for darker colors. Reactive dyes are red, direct dyes are dark green. In order to obtain excellent firmness, it is necessary to distinguish dyes and strictly control the amount of dyes.


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