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Process for dyeing polyester

A technology of polyester fiber and polyethylene glycol ether, which is applied in the fields of dyeing, fiber treatment, textiles and papermaking, and can solve problems such as time-consuming and pollutant flooding

Inactive Publication Date: 2009-03-11
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 potassium tridecyl phosphate, 10% OFA (surfactant, supplied by Sasol) and 63% water);

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

[0055] 1g / l UNI (anti-foam generator, Ciba Specialty Chemicals);

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

[0057] After 5min, use disperse dye Orange SD (Ciba Specialty Chemicals), Ruby SD (Ciba Specialty Chemicals) and Dark blue SD (Ciba Specialty Chemicals) is 1.3% according to the concentration in the liquid ( Orange SD), 3.0% ( Ruby SD) and 0.2% ( The amount of dark blue SD) was added. The liquid was then heated to 130°C at a rate of 2°C / min. When 130°C was reached after 40min., the liquid was cooled to 80°C at a rate of 2.5°C / min. Then add 2g / l reducing agent (24.9% hydroxymethanesulfinic acid / sodium salt,...

Embodiment 2

[0060] 2.070 kg of PES microfiber fabric (0.8d) was used as described in Example 1 Orange SD, Ruby SD and Dark blue SD staining. The adding amount of dyestuff is 0.8% according to the concentration in liquid ( Orange SD), 0.3% ( Ruby SD) and 2.4% ( The amount of dark blue SD) was added. The total time of the wet process was 135 min. 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 105 C01.

Embodiment 3

[0063] 2.780 kg of PES microfiber fabric (0.8d) was used as described in Example 1 Orange SD, Ruby SD and Dark blue SD staining. The adding amount of dyestuff is 0.73% according to the concentration in liquid ( Orange SD), 0.048% ( Ruby SD) and 0.5% ( The amount of dark blue SD) was added. Introduce 2g / l AB-45; heating rate is 3°C / min. After 20 min. at 130°C, the liquid was cooled to 80°C at a rate of 5°C / min. The total time of the wet process is 90min. 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: Values ​​of color fastness to washing measured according to ISO 105 C01 (40°C×30min.)

[0066] Example CA CO PA PES PAN WO 1 3-4 4-5 3-4 4 4-5 4-5 2 4-5 4-5 4-5 4-5 5 5 3 4-5 4-5 4-5 4-5 5 5

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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 fabric is thus neutral so that the final product remains neutral to slightl...

Claims

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Application Information

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