Dyeing accelerant for color matching and dyeing ofpolylactic acid as well as preparation method and application of dyeing accelerant
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A technology of dyeing accelerator and polylactic acid, which is applied in the field of dyeing and can solve problems such as single color
Active Publication Date: 2021-11-02
JIAXING UNIV
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[0005] The object of the present invention is to provide a dyeing accelerator for polylactic acid color matching dyeing and its preparation method and application. The dyeing accelerator for color ...
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[0046] The present invention also provides a method for preparing a dye accelerator for polylactic acid color matching dyeing described in the above technical solution, comprising: mixing water at 70-100°C with ethyl salicylate, then adding citric acid, diethylene Triaminepentamethylenephosphonic acid, ethyl benzoate and ethyl propionate, resulting in dye accelerators for color block dyeing of polylactic acid.
[0047]The invention mixes water at 70-100°C with ethyl salicylate to obtain a mixed solution. In the present invention, controlling the temperature of the water at 70-100° C. is beneficial to improving the compatibility of the system, and further beneficial to obtaining a stable and uniform dyeing accelerator. In the present invention, the mixing of the water and ethyl salicylate is preferably carried out under stirring; the stirring speed is preferably 600-1500r / min, more preferably 800-1200r / min; the stirring The time is preferably 3 to 5 minutes.
[0048] After th...
Embodiment 1
[0071] Raw materials (parts by weight): 50 parts of ethyl salicylate, 25 parts of ethyl benzoate, 10 parts of diethylenetriaminepentamethylenephosphonic acid, 5 parts of citric acid, 5 parts of ethyl propionate and 50 parts of deionized water share;
[0072] Add ethyl salicylate to deionized water at 70°C, stir for 5 minutes at a rate of 800 r / min, then add citric acid and diethylenetriaminepentamethylenephosphonic acid, continue stirring for 3 minutes, and finally add ethyl benzoate and acrylic acid Acetate ethyl ester, continue to stir 15min, obtain the dyeing accelerator that is used for polylactic acid color matching dyeing.
Embodiment 2
[0074] Raw materials (parts by weight): 10 parts of ethyl salicylate, 10 parts of ethyl benzoate, 5 parts of diethylenetriaminepentamethylenephosphonic acid, 3 parts of citric acid, 3 parts of ethyl propionate and 50 parts of deionized water share;
[0075] Adopt the same preparation method as Example 1.
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Abstract
The invention belongs to the technical field of dyeing, and provides a dyeing accelerant for color matching and dyeing of polylactic acid. The dyeing accelerant comprises the following components in parts by weight of 10-50 parts of ethyl salicylate, 10-25 parts of ethyl benzoate, 1-10 parts of diethylenetriaminepenta acid, 1-5 parts of citric acid, 1-5 parts of ethyl propionate and 50-60 parts of water. According to the invention, the ethyl salicylate and the ethyl benzoate are used as main raw materials, and the ethyl propionate is added at the same time, so that dye is promoted to enter polylactic acid, and the dyeing rate and the color matching stability are improved; the diethylenetriaminepenta acid is added to promote the dyeing and diffusion of the dye, and meanwhile, the diethylenetriaminepenta acid and the citric acid improve the compatibility of the system, so that the effect of the dyeing accelerant in color matching and dyeing of the polylactic acid is fully exerted; and the dyeing accelerant for color matching and dyeing of the polylactic acid is used for color matching and dyeing of a polylactic acid fabric, the dyeing percentage is 85.90%, the dry rubbing color fastness of the dyed polylactic acid fabric is the grade 4, and the wet rubbing color fastness is the grade 4-5.
Description
technical field [0001] The invention relates to the technical field of dyeing, in particular to a dyeing accelerator for color matching dyeing of polylactic acid, a preparation method and application thereof. Background technique [0002] With the enhancement of people's awareness of environmental protection and the introduction of national energy conservation and emission reduction policies, people pay more attention to the research and development of green environmental protection technology and environmental protection products. Polylactic acid fiber (PLA) is made from cornstarch and other raw materials, which are converted into lactic acid by fermentation, and then polymerized and melt-spun. Its raw materials come from a wide range of sources, and the products have good biodegradability. The degradation products are lactic acid, carbon dioxide and water, which have no pollution to the environment. Therefore, the green and environmentally friendly polylactic acid fiber is...
Claims
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