A kind of alkaline one-bath dyeing method of nylon 56 fiber/cotton blended fabric

A dyeing method, cotton blending technology, applied in the direction of dyeing, textile and paper making

Active Publication Date: 2019-02-01
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

There is no disclosure of related technologies on the alkaline one-bath dyeing method of nylon 56 fiber and pure cotton blended fabric

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1, K type reactive dye dyeing

[0033] High-temperature type K reactive dyes are suitable for dyeing nylon 56 fiber / cotton blended fabrics.

[0034] Put 20D×20D×350T nylon 56 fiber / cotton blended fabric (the blending ratio of nylon 56 fiber is 50%) into the overflow dyeing machine, adjust the water temperature in the dyeing machine to start the cycle at 40°C, dye with reactive brilliant red 3B Add the dye solution made of reactive dye (20g / L) and sodium sulfate (40g / L) into the dyeing machine and slowly raise the temperature for 1°C / 1 minute to 60°C, add sodium carbonate (20g / l) to adjust the pH value to 10, Continue to raise the temperature at 1°C / min to 80°C and keep it warm for 60 minutes. After the color is qualified, post-processing is carried out.

[0035] The various color fastness indexes of the fabrics dyed in this embodiment are as shown in Table 1.

[0036] It can be seen from the data in Table 1 that the fastness of dyeing meets the requirement...

Embodiment 2

[0037] Embodiment 2, the dyeing of vat dye

[0038] 45×45 / 130×70 nylon 56 fiber / cotton blended fabric (the blending ratio of nylon 56 fiber is 85%), dyeing nylon 56 with vat dyes on a continuous pad dyeing machine.

[0039] Two dipping and two padding vat dye suspension liquid → infrared drying at 90°C → normal temperature, one dipping and one rolling reducing solution (aqueous solution of caustic soda and sodium hydrosulfite (sodium dithionite), wherein the mass-volume concentration of caustic soda is 20g / l, sodium hydrosulfite The mass-volume concentration is 34g / l) → 102°C steaming for 40 seconds → washing → 55°C oxidation, hydrogen peroxide (30wt%) 1g / l → 95°C soaping, soap 5g / l, soda ash 3g / l → post-treatment .

[0040] The various color fastness indexes of the fabrics dyed in this embodiment are as shown in Table 1.

[0041] It can be seen from the data in Table 1 that the fastness of dyeing meets the requirements.

[0042] Table 1 Color fastness index of dyed nylon 5...

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Abstract

The invention discloses an alkaline one-bath-process dyeing method for a chinlon 56 fiber / cotton blended fabric. The method comprises the following step that vat dyes or reactive dyes are adopted for dyeing the chinlon 56 fiber / cotton blended fabric, wherein the chinlon 56 fiber / cotton blended fabric is the blended fabric of chinlon 56 and cotton fiber. In the alkaline one-bath-process dyeing method for the chinlon 56 fiber / cotton blended fabric, the reactive dyes and the chinlon 56 are combined through the covalent bond, the fastness is better compared with acid-bath ion bond combination, and the dyeing temperature is lower compared with a conventional dyeing method. Low-temperature dyeing can reduce damage to the fabric. The reactive dyes and the pure cotton fabric are combined through the covalent bond, and the dyeing method is the same as the dyeing method of the chinlon 56 fiber.

Description

technical field [0001] The invention relates to an alkaline one-bath dyeing method of nylon 56 fiber / cotton blended fabric. Background technique [0002] Nylon fabric is the first synthetic fiber that appeared in the world. It has many varieties, but its molecular structure contains the same amide group. The commonly used varieties are polycaprolactam for nylon-6, and hexamethylenediamine and polycaprolactam for nylon-66. Nylon 56 is a new type of polyamide fiber. Unlike nylon 66, which uses petroleum raw materials, it uses biological raw materials, which are fermented from various types of starch and straw cellulose by bioengineering methods. Diamine can replace hexamethylenediamine due to its high volume and low cost. Bio-based fibers have excellent characteristics such as green, environment-friendly, renewable raw materials, and biodegradation, which help to solve the serious shortage of resources and energy and environmental pollution faced by the current global economi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/22D06P1/673D06P3/85D06P1/38D06P5/10
CPCD06P1/22D06P1/38D06P1/6735D06P3/003D06P3/028D06P3/8219D06P5/10
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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