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PA color fixing agent and preparation method thereof

A color-fixing agent and curing agent technology, applied in the field of applied chemistry, to achieve the effect of simple process, stable and controllable process

Pending Publication Date: 2022-04-12
中山市好本意新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Although there is a lot of research work in this area, there is no PA color-fixing agent that does not contain phenol and bisphenol S. The industry urgently needs a PA color-fixing agent that does not contain phenol and bisphenol S to meet Increasingly stringent regulatory requirements

Method used

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  • PA color fixing agent and preparation method thereof
  • PA color fixing agent and preparation method thereof
  • PA color fixing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of PA fixing agent provided by the invention, its structural formula is:

[0030]

[0031] Where: x=2, y=45

[0032] The preparation of the color fixing agent comprises the following steps in turn,

[0033] 1) Add 2.92g of adipic acid into a 100ml four-necked flask (with nitrogen protection, thermometer and vacuum equipment); then add 48g of ED2003 (Huntsman) into the four-necked flask;

[0034] 2) Seal the four-necked flask, raise the temperature to 180°C, and turn on the vacuum pump for vacuum dehydration at the same time;

[0035] 3) react for 8 hours, stop heating;

[0036] 4) When the temperature drops to about 70°C, stop the vacuuming, add 0.56g of acetic acid (98%) into the four-necked flask, and discharge the material to obtain a brown-yellow viscous liquid

Embodiment 2

[0038] A kind of PA fixing agent provided by the invention, its structural formula is:

[0039]

[0040] Where: x=3, y=13

[0041] The preparation of the color fixing agent comprises the following steps in turn,

[0042] 1) Add 7.3g of adipic acid into a 100ml four-necked flask (with nitrogen protection, thermometer and vacuum equipment), and then add 36g of ED600 (Huntsman) into the four-necked flask;

[0043] 2) Seal the four-necked flask, raise the temperature to 180°C, and turn on the vacuum pump for vacuum dehydration at the same time;

[0044] 3) react for 4 hours, stop heating;

[0045] 4) When the temperature drops to about 70°C, stop vacuuming, add 1.45g of acetic acid (98%) into the four-necked flask, and discharge to obtain a light yellow viscous liquid

Embodiment 3

[0047] A kind of PA fixing agent provided by the invention, its structural formula is:

[0048] Where: x=4, y=78

[0049] The preparation of the color fixing agent comprises the following steps in turn,

[0050] 1) Add 2.75g of adipic acid into a 100ml four-necked flask (with nitrogen protection, thermometer and vacuum equipment), and add 20g of ED2003 and 20g of D2000 (Huntsman) into the four-necked flask;

[0051] 2) Seal the four-necked flask, raise the temperature to 180°C, and turn on the vacuum pump for vacuum dehydration at the same time;

[0052] 3) react for 12 hours, stop heating;

[0053] 4) When the temperature drops to about 70°C, stop the vacuuming, add 0.56g of acetic acid (98%) into the four-necked flask, and discharge to obtain a brown-yellow viscous liquid.

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Abstract

The invention discloses a PA color fixing agent and a preparation method thereof, and aims to provide a PA color fixing agent which does not contain phenol or bisphenol S, meets the environmental protection requirement and can meet the harsh requirements of Bluesign, GOTS and OEKO-TEX in the textile field and a preparation method of the PA color fixing agent. The preparation method of the PA color fixing agent comprises the following steps: filling carboxylic acid or carboxylate into a four-neck flask with nitrogen protection and a vacuumizing device; adding a polyether amine curing agent after vacuumizing, sealing the four-neck flask, heating to 160-200 DEG C for reaction, and simultaneously starting a vacuum water pump for vacuumizing and dehydrating; during the reaction, sampling and testing the acid value at an interval of one hour, and stopping heating when the acid value reaches a preset requirement; when the temperature is reduced to 60-80 DEG C, stopping vacuumizing, adding acid into the four-neck flask, and discharging to obtain the PA color fixing agent; belongs to the technical field of applied chemistry.

Description

technical field [0001] The invention relates to a color-fixing agent, specifically a PA color-fixing agent. The invention also discloses a preparation method of the color-fixing agent; it belongs to the technical field of applied chemistry. [0002] technical background [0003] Nylon, also known as polyamide (PA), is formed by ring-opening polymerization of caprolactam (PA6) or polymerization of adipic acid and hexamethylenediamine (PA66). Nylon is widely used in textile fields such as stockings / swimwear / jackets because of its excellent strength, dimensional stability, and hygroscopicity. [0004] Because acid dyes can be combined with nylon through various forces (electrostatic attraction, van der Waals force, etc.), they have bright luster and excellent color fastness, so they become the preferred dyes for nylon fiber dyeing. However, acid dyes have serious staining and fading phenomena because of their water-soluble groups. In order to improve color fastness, color fixat...

Claims

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Application Information

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IPC IPC(8): C08G69/40C08G69/42D06P5/08
Inventor 梁志光赵伟林詹伟彬林水娟廖灿鸿
Owner 中山市好本意新材料有限公司
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