Dyeing method using accelerating, fixation and chelation dispersing aid of active dye
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A reactive dye, chelating and dispersing technology, applied in the field of dyeing and finishing, can solve the problems of increasing difficulty in wastewater treatment and complicated procedures, and achieve the solution of increasing difficulty in wastewater treatment, simple process, good wash fastness and rubbing fastness degree of effect
Inactive Publication Date: 2012-11-07
HENAN INST OF ENG
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[0004] The object of the present invention is to aim at all natural and regenerated cellulose fibers such as cotton, fiber crops, viscose, and all natural and regenerated protein fibers such as wool, silk, nylon, and the shortcoming of the blending of above-mentioned fiber or interwoven fabric reactive dye dyeing process, Provide a new dyeing prescription, which uses sodium phytate as the dyeing accelerator, color fixation and chelating dispersant of reactive dyes, which not only solves the problem of increased difficulty in wastewater treatment caused by inorganic electrolytes during dyeing with conventional reactive dyes , and avoid the disadvantages of complicated process
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Embodiment 1
[0013] Dyeing method using reactive dyes to accelerate dyeing, color fixation and chelating dispersing auxiliaries, adopt exhaust dyeing process to dye cotton fabrics, the process flow is: first dissolve dyes and sodium phytate, enter dyeing at 30°C, liquor ratio 1:100, then Raise the temperature to 60°C at a heating rate of 1°C / min, keep it warm for 60 minutes, and finally wash with water, soap, wash with water, and dry.
[0014] The dye solution prescription is as follows:
[0015] Active Greenlandia BF-BGN 2% owf
[0016] Sodium Phytate 120g / L
Embodiment 2
[0018] Using the dyeing method of reactive dyes to accelerate dyeing, color fixation and chelating dispersing auxiliaries, the cotton fabric is dyed by exhaust dyeing process. The process is: first dissolve the dye and sodium phytate, enter the dyeing at 40°C, the liquor ratio is 1:60, and then Raise the temperature to 90°C at a heating rate of 1.5°C / min, keep it warm for 40 minutes, and finally wash with water, soap, wash with water, and dry.
[0019] The dye solution prescription is as follows:
[0020] Active Orange K-R 5% owf
[0021] Sodium Phytate 150g / L
Embodiment 3
[0023] The dyeing method uses reactive dyes to accelerate dyeing, color fixation and chelating dispersing auxiliaries, and adopts the exhaust dyeing process to dye silk fabrics. The process flow is: first dissolve the dye and sodium phytate, enter the dyeing at 30 °C, the liquor ratio is 1:20, and then Raise the temperature to 80°C at a heating rate of 2°C / min, keep it warm for 40 minutes, and finally wash with water, soap, wash with water, and dry.
[0024] The dye solution prescription is as follows:
[0025] Reactive Red KE-3B 3% owf
[0026] Sodium Phytate 30g / L
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Abstract
The invention discloses a dyeing method using an accelerating, fixation and chelation dispersing aid of an active dye. The accelerating, fixation and chelation dispersing aid is sodium phytate; cottons and silk fabrics are dyed by a dip dyeing process; the dyeing process comprises the following steps of: dissolving the active dye and the sodium phytate into water to prepare a dyeing solution; feeding the fabric into the dyeing solution; heating at the heating speed of 0.5 to 2 DEG C per minute to the temperature of 60 to 100 DEG C, and preserving the heat for 30 to 100 minutes; and after the heat preservation is finished, washing, soaping, secondarily washing and drying the fabric. According to the dyeing method, the sodium phytate replaces a neutral electrolyte, a fixation alkaline agent and a chelation dispersing aid in the conventional process and serves as a multifunctional dyeing aid of the active dye; and the functions of the three aids can be realized only when the sodium phytate is added. According to the technical scheme, the process is simple and convenient to operate; special requirement on the active dye and equipment is avoided; the conventional dyeing equipment can be used for implementing large-scale production; and the dyeing method is wide in application prospect.
Description
technical field [0001] The invention belongs to the technical field of dyeing and finishing, and relates to a dyeing-accelerating, color-fixing and chelating dispersant using sodium phytate as a dyeing agent for reactive dyes, especially capable of realizing the wide adaptability of reactive dyes, simplifying the process flow, and reducing the treatment of printing and dyeing wastewater strength. Background technique [0002] Reactive dyes are all natural and regenerated cellulose fibers such as cotton, hemp and viscose, and all natural and regenerated protein fibers such as wool and silk, nylon, and dyes commonly used for dyeing blended or interwoven fabrics of the above fibers. Reactive dyes are widely used because of their complete varieties, easy control of dyeing process, and high fastness of dyed fabrics. [0003] At present, neutral electrolytes (such as sodium chloride, sodium sulfate, etc.), color-fixing alkali agents (soda ash, caustic soda, baking soda, etc.), A...
Claims
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