Preparation method and application of hair dyeing product containing melanin precursor prepared by biological fermentation
A melanin precursor and bio-fermentation technology, which is applied in the field of preparation of dyed hair products, can solve the problems of long-term storage, bacteria in the product, and inability to carry out fermentation reactions, etc., and achieve the effect of good safety and effectiveness and low work efficiency
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Embodiment 1
[0068] In this embodiment, the melanin precursor solution prepared by biological fermentation is sterilized, and the specific steps are as follows:
[0069] (1) Put the 8-fold concentration of the melanin precursor solution obtained after fermentation into a high-temperature-resistant glass bottle, seal it, place the bottle in a water bath, and add water to the water bath to get the concentrated solution in the bottle Set the temperature of the water bath to 90°C. When the water temperature reaches 90°C, keep the temperature for 30 minutes. After completion, take the sealed bottle out of the water bath and place it at room temperature.
[0070] (2) Place it in the water bath again after an interval of 14 hours, and perform the second high-temperature sterilization in the same way as the above steps. After completion, the concentrated solution is poured out on the aseptic operating table, and after adding various auxiliaries tested for sterility to prepare a bio-melanin dyed pa...
Embodiment 2
[0072] In this embodiment, the melanin precursor solution prepared by biological fermentation is sterilized, and the specific steps are as follows:
[0073] (1) Put the 8-fold concentration of the melanin precursor solution obtained after fermentation into a high-temperature-resistant glass bottle, seal it, place the bottle in a water bath, add water to the water bath to concentrate in the bottle Set the temperature of the water bath to 95°C. When the water temperature reaches 95°C, keep the temperature for 30 minutes. After completion, take the sealed bottle out of the water bath and place it at room temperature.
[0074] (2) Place it in the water bath again after an interval of 14 hours, and perform the second high-temperature sterilization in the same way as the above steps. After completion, the concentrated solution is poured out on the aseptic operating table, and after adding various auxiliaries tested for sterility to prepare a bio-melanin dyed paste (for the preparati...
Embodiment 3
[0076] In this embodiment, the melanin precursor solution prepared by biological fermentation is sterilized, and the specific steps are as follows:
[0077] (1) Put the 8-fold concentration of the melanin precursor solution obtained after fermentation into a fermenter, seal it, set the temperature to 95°C, and start stirring. When the temperature in the tank reaches 95°C, keep the temperature at 30°C Minutes, after the sterilization is completed, turn off the stirring switch, and let it cool naturally at room temperature.
[0078] (2) After an interval of 14 hours, carry out the second high-temperature sterilization in the same way as the above steps. After the sterilization is completed, in the 100,000-class cleanliness workshop, add various auxiliary materials for detection of sterility to prepare a bio-melanin dyed paste (for the preparation method of the paste, refer to Example 4 of Chinese Patent CN106038411), and then fill it.
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