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Process for dyeing polyester

A polyester and polyester fiber technology, applied in the field of polyester fiber material dyeing, can solve the problems of time-consuming, flooding of pollutants, etc.

Inactive Publication Date: 2011-11-16
HUNTSMAN ADVANCED MATERIALS (SWITZERLAND) GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This multi-step process also requires three different cleaning and staining solutions, which is relatively time-consuming and produces a large amount of pollutant-laden effluent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] 2.0 kg of PES microfiber fabric (0.8d) immersed in a liquid heated to 40°C containing:

[0053] 2g / l washing solution (15% triethylene glycol butyl ether, 12% ethoxylated tridecyl potassium phosphate, 10% Marlowet OFA (surfactant, supplied by Sasol) and 63% water);

[0054] 1g / l Univadine DPL (dispersant, Ciba Specialty Chemicals);

[0055] 1g / l Cibaflow UNI (anti-foaming agent, Ciba Specialty Chemicals);

[0056] 1g / l Cibatex AB-45 (acid buffer, Ciba Specialty Chemicals).

[0057] After 5min, use disperse dye Terasil Orange SD (Ciba Specialty Chemicals), Terasil Ruby SD (Ciba Specialty Chemicals) and Terasil Dark blue SD (Ciba Specialty Chemicals) is 1.3% (Terasil Orange SD), 3.0% (Terasil Ruby SD) and 0.2% (Terasil The amount of dark blue SD) was added. The liquid was then heated to 130°C at a rate of 2°C / min. Upon reaching 130°C after 40 minutes, the liquid was cooled to 80°C at a rate of 2.5°C / min. Then 2 g / l reducing agent (24.9% hydroxymeth...

Embodiment 2

[0060] 2.070 kg of PES microfiber fabric (0.8d) using Terasil as described in Example 1 Orange SD, Terasil Ruby SD and Terasil Dark blue SD staining. The amount of dye added is 0.8% according to the concentration in the liquid (Terasil Orange SD), 0.3% (Terasil Ruby SD) and 2.4% (Terasil The amount of dark blue SD) was added. The total time for the wet process was 135 minutes. A deep blue dyeing was obtained with good overall fastness properties, especially high fastness properties to light and to washing.

[0061] Table 1 gives the values ​​for color fastness to washing measured according to ISO 105C01.

Embodiment 3

[0063] 2.780 kg of PES microfiber fabric (0.8d) using Terasil as described in Example 1 Orange SD, Terasil Ruby SD and Terasil Dark blue SD staining. The amount of dye added is 0.73% according to the concentration in the liquid (Terasil Orange SD), 0.048% (Terasil Ruby SD) and 0.5% (Terasil The amount of dark blue SD) was added. Introduce 2g / l Cibatex AB-45; heating rate is 3°C / minute. After 20 minutes at 130°C, the liquid was cooled to 80°C at a rate of 5°C / min. The total time for the wet process was 90 minutes. A gray dyeing with good overall fastness properties, especially high fastness properties to light and to washing, is obtained.

[0064] Table 1 gives the values ​​for color fastness to washing measured according to ISO 105 C01.

[0065] Table 1: Color fastness to washing values ​​measured according to ISO 105 C01 (40°C x 30 minutes)

[0066] Example

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PUM

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Abstract

The invention relates to a process for dyeing polyester fibre material according to the exhaust method, which process comprises the following steps: (a) pre-treatment of the fibre material with one or more surfactants, (b) dyeing with one or more disperse dyes, and (c) reductive after-treatment with a hydroxyalkylsulfinic acid or a hydroxyalkylsulfinic acid salt, wherein steps (a), (b) and (c) are carried out in succession in a single liquor.

Description

technical field [0001] The present invention relates to a method for dyeing polyester fiber materials using disperse dyes according to the exhaust method. Background technique [0002] Conventional dyeing of polyester (PES) fiber materials in the form of yarns or flat textiles (eg wovens) generally consists of at least three separate process steps. For degreasing / cleaning purposes, the fibrous material in the pretreatment step is treated with a surfactant-containing washing liquor which may also contain other auxiliaries such as desizing agents or bleaching agents. In the second dyeing step itself, polyester fibers are treated with disperse dyes at elevated temperatures in the acidic pH range. In order to increase the colorfastness, dye particles adhering to the surface of the fiber material dyed in the above-described manner are removed by reducing aftertreatment in the alkaline pH range. The dyed cloth is then neutralized, keeping the final product at a neutral to slight...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P3/54D06P3/52D06P3/00D06P3/82
CPCD06P3/8233D06P3/52D06P3/004D06P3/54Y10S8/918Y10S8/922
Inventor M·韦伯E·哈姆
Owner HUNTSMAN ADVANCED MATERIALS (SWITZERLAND) GMBH
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