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Polyamide nonwoven fabric dyeing process

A non-woven fabric and dye technology, applied in the field of dyeing technology, can solve the problems of poor effect, poor color fastness to rubbing, and rough hand feel of the finished product, and achieves enhanced dye migration, good color fastness and rubbing fastness and uniformity. The effect of increasing the degree of

Active Publication Date: 2013-10-23
杭州航民美时达印染有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, dyed nylon and polyester non-woven fabrics are mostly dyed with paint, and the dyed finished products have rough hand feeling and poor color fastness to rubbing.
In addition, non-woven fabrics are dyed with paint, which can only dye medium and light colors, and the effect of dyeing dark colors is poor.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Polyamide nonwoven fabric dyeing process
  • Polyamide nonwoven fabric dyeing process
  • Polyamide nonwoven fabric dyeing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Dyeing Process of Green Polyester Non-woven Fabric

[0023] Non-woven gray fabric: 50% nylon 50% polyester spunlace non-woven fabric Weight: 100g / m 2 , door width: 160cm

[0024] Finished product requirements: Gram weight 100g / m 2 , door width: 155cm

[0025] Technological process: pretreatment—dyeing—fixation—stenter drying—setting

[0026] Pre-treatment: Add water at room temperature at a bath ratio of 1:8-1:10, take 0.2% fabric weight of penetrating agent FFA, 0.5% fabric weight of refining agent and 0.3% fabric weight of soda ash, dissolve in water, Add in two batches within 20 minutes. After the dyeing machine runs at a speed of 60 m / min for 10 minutes, it heats up to 80°C at a rate of 1°C / min. After running for 45 minutes, drain the water and wash it twice with hot water. Drain.

[0027] Dyeing, process curves such as figure 1 Shown:

[0028] 1) At room temperature, add clean water at a bath ratio of 1:8, add 0.5g / L penetrant FFA, 2% fabric weight leveling ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to a dyeing process, and especially relates to a polyamide nonwoven fabric dyeing process, which belongs to the technical field of printing and dyeing. The polyamide nonwoven fabric dyeing process comprises the steps of pretreatment, dyeing, fixing, tenter drying, sizing and the like; and the process is characterized in that: in the step of dyeing, dyes are used for dyeing. According to the invention, because dyes are used for dyeing, the process has the beneficial effects that: 1, the dyes are added according to the weight of a fabric, and a penetrant FFA (free fatty acid) and an efficient universal deaeration / wetting agent with a lasting defoaming performance are adopted, so that the air entrapment of the closely woven fabric can be eliminated, the dye permeability of the fabric is benefited, and the fabric can be dyed with all deep, neutral and light colors; and 2, because a leveling agent PL having a retarding capacity and a capacity of enhancing the migration ability of dyes is adopted, the compatibility of dyes can be improved, and an uneven dyeing phenomenon caused by the compatibility difference of dyes is improved, therefore, the evenness of a fabric surface is benefited, the fastness of a fabric is improved, and the softness, color fastness and friction fastness of the fabric are better.

Description

technical field [0001] The invention relates to a dyeing process, in particular to a dyeing process of nylon and polyester non-woven fabrics, and belongs to the technical field of printing and dyeing. Background technique [0002] With the development of ultra-fine denier fibers and the characteristics of non-woven fabrics that do not need to remove the size, nylon-polyester non-woven fabrics are more and more used in automobile decoration and home furnishing industries, and the demand for colored non-woven fabrics is increasing , and the quality requirements are getting higher and higher. At present, dyed nylon and polyester non-woven fabrics are mostly dyed with paint, and the dyed finished products have rough hand feeling and poor color fastness to rubbing. In addition, non-woven fabrics are dyed with paint, which can only dye medium and light colors, and the effect of dyeing dark colors is poor. Contents of the invention [0003] In order to overcome the above-mentio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/44D06P3/24D06P3/52D06P5/02D06M15/53D06M11/76D06M15/643
Inventor 朱水虎赵新渔
Owner 杭州航民美时达印染有限公司