Wool ecological dye paste, preparation method thereof and dyeing method
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A wool and ecological technology, applied in the field of dyeing, can solve the problems of long dyeing time, achieve the effects of short dyeing time, avoiding damage to wool quality, and low energy consumption
Inactive Publication Date: 2011-08-17
贵州阿斯科科技开发有限公司
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[0004] The technical problem to be solved by the present invention is to overcome the defect that the dyeing time of the existing low-temperature dyeing technology is too long, and to provide a kind of wool ecological dyeing cream and its preparation method and dyeing method
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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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preparation example Construction
[0026] (1) Preparation method of dyeing paste: Weigh the surfactant in proportion and dissolve it in deionized water, then add the dye, dissolve and mix well, then add a thickener to adjust the viscosity to obtain a viscous paste. Add it to the viscous paste and dissolve it to make a dyeing paste;
[0027] (2) The preparation method of the mordant paste: Weigh the surfactant in proportion and dissolve it in deionized water, add the mordant, add the thickener and ascorbic acid, and mix to prepare the mordant paste.
Embodiment 7
[0028] Embodiment 7: Dyeing wool with any of the aforementioned ecological dyeing creams
[0029] Add 70g of water to the dyeing vat, add 30g of dyeing paste at room temperature, stir evenly, adjust the pH value of the dyeing bath to 9.0 with sodium hydroxide, then add 5g of wool loose fiber, and raise the temperature to 35 at a rate of 1min / °C ℃, keep warm for 35 minutes, then add 30g of mordant paste, stir evenly, keep warm at 35 ℃ for 35 minutes, and wash with water and soap.
Embodiment 8
[0030] Embodiment 8: Dyeing wool with any of the aforementioned ecological dyeing creams
[0031] Add 80g of water into the dyeing vat, add 20g of ecological dye at room temperature, stir evenly, adjust the pH value of the dyeing bath to 8.0 with sodium carbonate, then add 5g of wool loose fiber, and raise the temperature to 40 at a rate of 1min / °C ℃, heat preservation for 40 minutes, then add 20g of mordant paste, stir evenly, heat preservation at 40 ℃ for 40 minutes, after conventional washing and soaping.
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 discloses a wool ecological dye paste, a preparation method thereof and a dyeing method; the wool ecological dye paste comprises dye paste and mordant paste, wherein a coloring agent in the dye paste is gallic acid or tannic acid or a mixture of gallic acid and tannic acid, a mordant in the mordant paste is ferrous salt or ferric salt, and the ecological dye paste is used for dyeing the wool under a temperature of 35 to 45 DEG C. Compared with the prior art, the gallic acid or tannic acid of the ecological dye paste is an ecological dye extracted from natural plants; the mordant paste is ferric ions or ferrous ions, does not contain heave metal chromium ions and has no pollution to environments; the ecological dye paste is used for dyeing the wool at an alkaline condition, and the dyeing temperature is below 50 DEG C so as to avoid the damage of wool quality caused by high temperature dyeing and lead the dyeing time to be shortened to be within 50 min; and therefore, the dye paste has short dyeing time, low energy consumption, rapid dyeing rate and good level dyeing property.
Description
technical field [0001] The invention relates to the technical field of dyeing, in particular to a wool ecological dyeing paste, a preparation method thereof and a low-temperature dyeing method. Background technique [0002] The dyes used in traditional wool dyeing are mostly acid mordant dyes, which account for 30% of the total dyes used in wool. They have the advantages of low price, excellent wet fastness and high color yield, but their disadvantages are polluting the environment, dyeing Wastewater contains chromium ions, and hexavalent chromium is highly toxic, followed by trivalent chromium. With acid mordant dyes, it is necessary to dye for a long time at a temperature close to boiling, which can increase the diffusion rate of the dye. However, high-temperature dyeing not only consumes a lot of energy and increases the cost, but also makes the wool suffer from heat and chemicals, causing the wool to turn yellow, affecting the feel, luster, and vividness of the fiber, r...
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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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