Nylon cheese and dyeing method thereof

A cheese and nylon technology, applied in the field of dyeing and finishing, can solve the problems of increased contact between dyes and nylon cheese, aggravated hydrolysis, and fast dyeing, etc., to achieve easy promotion and industrialization, and reduce processing difficulty and cost , the effect of reducing the number of washing

Pending Publication Date: 2022-05-13
HAINING GREEN UNIVERSE TEXTILE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Specifically, since most of the water is adsorbed on the nylon cheese, the chances of the dye being in contact with the nylon cheese increase, and the dyeing is too fast, which is prone to uneven dyeing.
Moreover, the feeding method of this scheme will cause the local pH in the dyeing bath to rise sharply, causing the hydrolysis of the dye to intensify under the condition of high pH value, and at the same time, it will also make the reaction speed of the local dye and the fiber too fast, thus resulting in poor dyeing. Uniform phenomenon, in non-aqueous medium dyeing, less water consumption, this phenomenon will be more obvious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Embodiment 1, prepare one, blue nylon cheese.

[0055] Package yarn to be dyed: Nylon package yarn.

[0056] Nylon cheese to be dyed: 300kg.

[0057] Dye formula:

[0058] Acid Scarlet G: 2% (owf.);

[0059] Acetic acid: 0.1% (owf.);

[0060] Leveling agent: 0.5% (owf.);

[0061] Chemical dye water: 100% (owf.).

[0062] Dyeing process and parameters

[0063] 11. Weighing and chemical materials.

[0064] 12. Squeeze the water before dyeing, put the nylon cheese after scouring and squeezing into the non-aqueous medium nylon cheese dyeing vat, when squeezing the water, pressurize at 0.4MPa, and the water content of the nylon cheese after squeezing is 80% (owf.). Wherein, in this embodiment, unless otherwise specified, the special dyeing vat for non-aqueous medium nylon cheese can be simply referred to as the dyeing vat.

[0065] 13. Add non-aqueous medium, put the non-aqueous medium into the dye vat, at this time, the mass ratio of nylon cheese and non-aqueous me...

Embodiment 2

[0077] Embodiment 2, lake blue nylon cheese.

[0078] Cheese to be dyed: Nylon cheese.

[0079] The quality of nylon cheese yarn to be dyed: 300kg.

[0080] Dye formula:

[0081] Acid Lake Blue A: 0.5% (owf.);

[0082] Acetic acid: 0.5% (owf.);

[0083] Leveling agent: 0.5% (owf.);

[0084] Chemical dye water: 110% (owf.).

[0085] Dyeing process and parameters

[0086] 21. Weighing and chemical materials.

[0087] 22. Squeeze the water before dyeing, put the nylon cheese after scouring and squeezing into the non-aqueous medium nylon cheese dyeing vat, when squeezing the water, pressurize at 0.4MPa, and the water content of the nylon cheese after squeezing the water is 70% (owf.). Wherein, in this embodiment, unless otherwise specified, the special dyeing vat for non-aqueous medium nylon cheese can be simply referred to as the dyeing vat.

[0088] 23. Add non-aqueous medium, put the non-aqueous medium into the dye vat, at this time, the mass ratio of nylon cheese and ...

Embodiment 3

[0100] Example 3, orange nylon cheese.

[0101] Cheese to be dyed: Nylon cheese.

[0102] The quality of nylon cheese yarn to be dyed: 300kg.

[0103] Dye formula:

[0104] Neutral Orange R: 1.0% (owf.)

[0105] Acetic acid: 0.1% (owf.)

[0106] Leveling agent: 1% (owf.)

[0107] Chemical dye water: 100% (owf.).

[0108] Dyeing process and parameters

[0109] 31. Weighing and chemical materials.

[0110] 32. Squeeze the water before dyeing, put the nylon cheese after scouring and squeezing into the non-aqueous medium nylon cheese dyeing vat, when squeezing the water, pressurize the pressure at 0.4MPa, and the moisture content of the nylon cheese after squeezing the water is 70% (owf.). Wherein, in this embodiment, unless otherwise specified, the special dyeing vat for non-aqueous medium nylon cheese can be simply referred to as the dyeing vat.

[0111] 33. Add non-aqueous medium, put the non-aqueous medium into the dye vat, at this time, the mass ratio of nylon cheese...

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Abstract

The invention relates to the technical field of dyeing and finishing, in particular to a nylon cheese and a dyeing method thereof, the nylon cheese is dyed by a first dye, the dye utilization rate of the first dye is not less than 95%, and the leveling property is 4-5 grade. According to the scheme, when the non-aqueous medium is used for dyeing the nylon cheese, the utilization rate of the dye can be increased (up to 95% or above); the level dyeing property of dyeing is improved; no extra salt is added during dyeing, so that the alkalinity is reduced; and dyeing wastewater is reduced, so that the dyeing wastewater is simple to treat, and the recycling rate of the dyeing wastewater is increased.

Description

technical field [0001] The invention relates to the technical field of dyeing and finishing, in particular to a nylon cheese and a dyeing method thereof. Background technique [0002] At present, the traditional dyeing method of nylon cheese is water bath dyeing. This dyeing method has the problems of low dyeing rate, uneven dyeing, and easy generation of colored flowers. Aiming at the problem of dyeing uptake, a large amount of dyeing accelerators are added in the water bath dyeing process to increase the dyeing uptake rate of dyes, and leveling agents are often added to improve the dyeing levelness in view of uneven dyeing, so it is costly to achieve the corresponding dyeing effect A large number of dyeing accelerators and leveling agents. In addition, a large amount of water is consumed during the dyeing process. After dyeing, the dye on the surface of the fiber needs to be washed several times to improve the color fastness. Therefore, the entire dyeing process consumes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/24D06P1/39D06P1/41D06P1/36D06P1/00
CPCD06P3/241D06P3/24D06P3/245D06P1/39D06P1/41D06P1/36D06P1/00
Inventor 黄亚伟吴振华程文青张筱龙刘今强王际平
Owner HAINING GREEN UNIVERSE TEXTILE TECH CO LTD
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