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A technology of natural plant dyes and plant dyes, applied in the field of dye preparation, can solve the problems of loss of market competitiveness, improper extraction methods, high manufacturing costs, etc., and achieve the effects of pure and elegant colors, enhanced mechanical effects, and improved efficiency
Inactive Publication Date: 2015-11-25
界首市波菲特服饰有限公司
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Problems solved by technology
However, most manufacturers currently lose their market competitiveness due to improper extraction methods and low extraction rates, resulting in high manufacturing costs.
Method used
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Embodiment 1
[0021] A preparation method of natural plant dye, comprising the steps of:
[0022] (1) Cleaning: Wash and dry the selected plants and crush them for later use;
[0023] (2) Mixing: Mix the crushed plants and alcohol evenly at a mass ratio of 1:15;
[0024] (3) Ultrasonic extraction: put the above mixture in an ultrasonic extraction tank, use two different frequency ultrasonic combinations to extract it, and obtain the extract after 20 minutes;
[0025] (4) Distillation: distill the obtained extract to recover alcohol;
[0026] (5) Filtration: Filter and dry the distilled liquid to obtain vegetable dyes.
[0027] Further, the surface water content of the dried plants in step (1) is 10-15%.
[0028] Further, the alcohol concentration in step (2) is 90%.
[0029] Further, the ultrasonic frequencies in step (3) are 28KHz and 35KHz respectively, and the total ultrasonic intensity is 0.7W / cm 2 .
[0030] Further, the filtration in step (5) is carried out with 120-mesh stainle...
Embodiment 2
[0035] A preparation method of natural plant dye, comprising the steps of:
[0036] (1) Cleaning: Wash and dry the selected plants and crush them for later use;
[0037] (2) Mixing: Mix the crushed plants and alcohol evenly at a mass ratio of 1:20;
[0038] (3) Ultrasonic extraction: put the above mixture in an ultrasonic extraction tank, use three different frequency ultrasonic combinations to extract it, and obtain the extract after 15 minutes for use;
[0039] (4) Distillation: distill the obtained extract to recover alcohol;
[0040] (5) Filtration: Filter and dry the distilled liquid to obtain vegetable dyes.
[0041] Further, the surface water content of the dried plants in step (1) is 12-15%.
[0042] Further, the alcohol concentration in step (2) is 95%.
[0043] Further, the ultrasonic frequencies in step (3) are 26KHz, 30KHz, and 38KHz respectively, and the total ultrasonic intensity is 1.1W / cm 2 .
[0044] Further, the filtration in step (5) is carried out wit...
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Abstract
The invention provides a preparation method of natural plant dye. The method comprises the first step of cleaning, the second step of mixing, the third step of ultrasonic extraction, the fourth step of distillation and the fifth step of filtration. According to the preparation method of the natural plant dye, by means of multi-frequency ultrasonic extraction operation, the mechanical effect, the cavitation effect and the thermal effect of the dye can be greatly enhanced; compared with single-frequency acoustic extraction, the extraction time can be shortened by 40% to 60%, the extraction temperature can be declined by 15 DEG C to 20 DEG C, damage to natural pigments and effective components caused by the temperature is reduced, therefore, the extraction rate is increased, and the quality is improved; due to the fact that optimum induction frequencies of different plant cells are different, according to the preparation method of the natural plant dye, different frequencies can be appropriately adjusted and combined, coextraction of various plants with similar hues can be achieved, the energy sources are saved, and the efficiency is improved. The prepared plant dye is stronger in adhesion effect and pure and elegant in color, the antibacterial and anti-virus effects are achieved, and the plane dye is safe, harmless, natural and environmentally friendly.
Description
technical field [0001] The invention relates to a preparation method of a dye, in particular to a preparation method of a natural vegetable dye. Background technique [0002] In the past 30 years, the textile industry has developed rapidly in my country. my country has become a veritable textile production country in the world. While promoting economic development, the textile industry has also caused serious environmental pollution. The traditional textile dyeing and finishing process uses The synthetic chemical dyes and auxiliaries contain various harmful substances to varying degrees, which endanger people's health. The large amount of sewage generated by processing is difficult and expensive to treat, which puts great pressure on the ecological environment. [0003] Natural plant dyeing is to use the natural pigments extracted from the flowers, fruits, skins, stems and seeds of natural plants to dye textiles. The whole process hardly contains any toxic chemicals, which is...
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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