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Method for dyeing and/or printing textile material

A technology of textile materials and printing, applied in at least one other field, capable of solving the problems of uneven distribution, difficult dyeing, insufficient dyeing, etc.

Inactive Publication Date: 2004-10-06
CARL FREUDENBERG KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, dyeing is also more difficult due to uneven distribution of microfibers and / or microfilaments in the nonwoven fabric
[0006] Therefore, the dyeing of the polyamide component with great shade depths can only be insufficient when dyeing the nonwoven with the above-mentioned dye grades (Farbstoffklasse)

Method used

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  • Method for dyeing and/or printing textile material

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0055] a) A unit surface weight of 100g / m 2 Spunbonded nonwoven fabrics consisting of partially split microfilaments of about 0.15 dtex containing 70% by weight polyethylene terephthalate and 30% by weight polyamide 66, for use by exhaust dyeing Demineralized water (initial pH = 6.3) with 25 ml / L 98-100% by weight of formic acid (0.66 mol / L, density = 1.22 g / mol) added and thereafter pH 2.0 at the bath ratio It was treated at a ratio of 1:10. For this purpose, after the addition of formic acid, heating is carried out at 20° C. to 60° C. at a rate of 2° C. / min and treatment is carried out at 60° C. for 30 minutes. The treated nonwovens were then rinsed with running cold water until the pH was neutral and dried at room temperature.

[0056] b) 2% by weight (relative to the weight of the nonwoven) of the reactive dye Dimaren on the nonwoven treated according to a)  Brilliant blue K-BL (Clariant, Germany) was dyed at a liquor ratio of 1:10. The pH value is adjusted to pH 2 wi...

example 2

[0059] For a unit surface weight of 100g / m 2 Partially split microfilaments containing 70% by weight polyethylene terephthalate and 30% by weight polyamide 66 with a titer of about 0.15 dtex according to example 1a) treated with formic acid 2% by weight (relative to the weight of nonwoven fabric) reactive dye Dimare for spunbond nonwovens  Red 8RB (Clariant, Germany) was dyed at a liquor ratio of 1:10. The pH value is adjusted to pH 2 with 60% by weight acetic acid at 20°C, then heated to 60°C at a rate of 2°C / min, and the dye is dipped for 30 minutes at 60°C. Thereafter the pH was adjusted to pH 9 by adding solid sodium carbonate, then heated to 90°C at a rate of 2°C / min, and dyed at 90°C for 30 minutes. Then rinse the dyed matter with flowing water, and soap twice at 60°C with 4g / L of commercially available high-grade detergent when the bath ratio is 1:100, each time for 15 minutes. At this point the pH was adjusted to pH 9 with solid sodium carbonate. Finally rinse the...

example 3

[0062] For a unit surface weight of 100g / m 2 Spun-bonded nonwoven fabric consisting of partially split micro-filaments containing 70% by weight polyethylene terephthalate and 30% by weight polyamide 66 with a titer of about 0.15 dtex by exhaust dyeing With 2% by weight (relative to the weight of the nonwoven fabric) of reactive dyes Realan  Red G (Dystar, Germany) was dyed at a liquor ratio of 1:10. The pH value is adjusted to pH 2 with 25ml / L 98-100% by weight formic acid at 20°C, then heated to 60°C at a speed of 2°C / min, and the dye is exhausted for 30 minutes at 60°C. Thereafter the pH was adjusted to Ph9 by adding solid sodium carbonate, then heated to 90°C at a rate of 2°C / min, and dyed at 90°C for 30 minutes. Then rinse the dyed matter with flowing water, then soap twice at 60°C with 4g / L of commercially available high-grade detergent at a bath ratio of 1:100, each for 15 minutes. At this point the pH was adjusted to pH 9 with solid sodium carbonate. Finally rinse ...

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Abstract

The invention relates to a method for dyeing and / or printing textile material containing non-split and / or at least partially split micro-fibres and / or micro-filaments, composed of at least one polyamide component and optionally at least one additional polymer component. According to said method, the textile material is treated with formic acid and is dyed and / or printed using at least one dye, selected from the group containing anionic acidic dyes, metal complex dyes, reactive dyes, direct dyes and cationic dyes.

Description

technical field [0001] The invention relates to a method for containing unsplit and / or at least partially split (gesplittet) microfibers and / or microunits composed of at least one polyamide component and in some cases at least one other polymer component Process for dyeing and / or printing silk textile materials by treating the textile materials with formic acid and with at least one selected from the group consisting of anionic acid dyes, metal complex dyes, reactive dyes, direct dyes, cationic dyes Dyes for dyeing and / or printing. Background technique [0002] Textile materials consisting at least partially of polyamides are widely used in different fields of application, for example in the clothing industry or the automotive industry, due to their many outstanding properties. They are mostly dyed for the visual design of textile materials, whereby anionic acid dyes, metal complex dyes, reactive dyes, direct dyes (direct dyeing) or cationic dyes are generally used for the ...

Claims

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Application Information

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IPC IPC(8): D06P1/653D06P3/82
CPCD06P3/8214D06P3/8219D06P3/8209D06P1/6533
Inventor H·巴特尔R·格罗滕
Owner CARL FREUDENBERG KG
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