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Method for basic bath dyeing of nylon 56 fiber fabric

A dyeing method, nylon technology, applied in the field of alkaline bath dyeing, to achieve the effect of reducing damage

Active Publication Date: 2016-11-09
THE QUARTERMASTER EQUIPMENT RESEARCH INSTITUTE OF THE GENERAL LOGISITIC DEPARTME +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The general dyeing temperature of nylon 66 is 40-98°C, and the dyeing temperature of nylon 56 fiber fabric can be reduced to 40-80°C. There is no disclosure of related technologies for the low-temperature dyeing method of nylon 56 fabric in an alkaline bath

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1. K-type reactive dye dyeing

[0031] Nylon 56 dyeing is suitable for high temperature type K reactive dyes.

[0032] Load the 20D×20D×350T nylon 56 fabric into the overflow dyeing machine, adjust the water temperature in the dyeing machine to start the cycle at 40°C, and mix K-type reactive dye (20g / L) and sodium sulfate (40g / L) during dyeing. The finished dye solution is added to the dyeing machine, and the temperature is slowly increased by 1°C / 1 minute to 60°C. After adding 20g / l of sodium carbonate to adjust the pH value to 10, continue to heat up at 1°C / min to 80°C and keep the temperature for 60 minutes. After the color is qualified, post-processing is carried out.

[0033] The color fastness indexes of the fabrics dyed in this example are shown in Table 1.

[0034] It can be seen from the data in Table 1 that the fastnesses after dyeing meet the requirements.

Embodiment 2

[0035] Example 2. Dyeing of vat dyes

[0036] 45×45 / 130×70 nylon 56 fabric, dyed with vat dye nylon 56 on a continuous pad dyeing machine.

[0037] Two dips and two rolls of vat dye suspension liquid → infrared drying at 90 °C → one dip and one roll of reducing solution at room temperature (aqueous solution of caustic soda and hydrosulfite (sodium hydrosulfite), wherein the mass-volume concentration of caustic soda is 20g / l, hydrosulfite The mass-volume concentration is 34g / l)→102℃ steaming for 60 seconds→water washing→55℃oxidation, hydrogen peroxide (30wt%) 1g / l→95℃soaping, soap 5g / l, soda ash 3g / l→post-treatment .

[0038] The color fastness indexes of the fabrics dyed in this example are shown in Table 1.

[0039] It can be seen from the data in Table 1 that the fastnesses after dyeing meet the requirements.

[0040] Table 1 Color fastness indexes of dyed nylon 56 fabrics

[0041] Name item

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PUM

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Abstract

The invention discloses a method for basic bath dyeing of nylon 56 fiber fabric. According to the method, the nylon 56 fiber fabric is dyed with vat dye or activated dye, wherein the nylon 56 fiber fabric is nylon 56 filament or nylon 56 short fiber fabric. Due to the difference in crystallization, the acid-base resistance of nylon 56 is quite different from that of ordinary nylon 6 and nylon 66. Under the same treatment condition, the fiber strength of nylon 56 is much lower, and thus nylon 6 and nylon 66 dyeing processes which are mostly studied are not completely applicable to dyeing of nylon 56. In the method, activated dye and nylon 56 are boned through covalent bonds, firmness is higher than that of ionic bonding in an acid bath, dyeing temperature is lower than that of a conventional dyeing method, and damage to fabric can be reduced by the adoption of low-temperature dyeing.

Description

technical field [0001] The invention relates to an alkaline bath dyeing method for nylon 56 fiber fabrics. Background technique [0002] Nylon fabric is the first synthetic fiber that appeared in the world. The appearance of nylon (foreign names include nylon, nylon, Kaplon, etc.) has brought a new look to the fabric of textiles. Its synthesis is a major breakthrough in the synthetic fiber industry. The domestic trade name of amide fiber. There are many varieties, but the molecular structure contains the same amide group. Generally, the commonly used varieties are polycaprolactam polyamide-6, polyamide-66 is the polymerization of hexamethylene diamine and adipic acid. , Nylon 56 is a new type of polyamide fiber. Unlike nylon 66, which uses petroleum raw materials, the raw materials used are biological raw materials. Pentamethylene diamine is fermented from various types of starch and straw cellulose by bioengineering methods. , low cost, it can replace hexamethylene diamine...

Claims

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Application Information

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IPC IPC(8): D06P1/22D06P1/38D06P1/673D06P3/24
CPCD06P1/22D06P1/38D06P1/67375D06P3/243D06P3/248
Inventor 郝新敏鞠景堂赵鹏程严欣宁倪成涛仇凯
Owner THE QUARTERMASTER EQUIPMENT RESEARCH INSTITUTE OF THE GENERAL LOGISITIC DEPARTME
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