Natural hair dye composition and preparation method thereof

Abstract

The invention provides a natural hair dye composition which is prepared from the following raw materials by weight percent: 22-25% of natural melanin, 14-16.5% of fleece-flower root, 14-16.5% of dry ginger, 14-16.5% of common bletilla tuber, 7-11% of indigo naturalis, 7-11% of spikenard, 1.5-5.5% of honeycomb extract and 0.6-1.1% of carbon molecular sieve. The preparation method of the composition comprises the following steps: (a) mixing the dry raw materials in the proportion and then grinding through a colloid mill; (b) performing ultrasonic-microwave dynamic extraction; (c) grinding again by using the colloid mill; (d) performing decompression concentration in vacuum or freezing and drying at the critical point; and (e) performing vacuum ultrasonic filtration to obtain a product. The hair dye composition is made of pure natural substances, has high adhesion speed, strong adhesion force and hair protecting effect. The natural hair dye composition can promote the microcirculation metabolism and has the effect of improving the microcirculation of hair follicles and skin capillaries.

Description

technical field [0001] The invention relates to a hair dye composition in the field of black hair beauty, in particular to a nano-scale pure natural hair dye composition and a preparation method thereof. Background technique [0002] Today's hair dyeing has become a fashion, but most of the chemical ingredients in the hair dyes currently on the market contain carcinogens, and long-term use will increase the risk of cancer. People who often dye their hair often encounter problems such as allergies, hair damage, and fading. Because "p-phenylenediamine", the main ingredient in chemical hair dyes, not only easily causes excessive density, but also causes dizziness, headache, eye diseases, anemia and other symptoms, and in severe cases, it can also cause diseases such as cell mutation. However, the natural Chinese medicine hair dye overcomes the above-mentioned shortcomings, and has the effect of deeply nourishing the hair roots. [0003] In order to solve the above problems, p...

AI Technical Summary

Problems solved by technology

(1) There are no natural antiseptic ingredients in the formula, which is not conducive to preservation and easy to be contaminated by microorganisms, so it is not conducive to pre-made products that can be stored for a long time; (2) The product particles are too large (1-5 microns), which is not conducive to adhesion. The retention time on the hair surface is not long enough; (3) Although the hair dye formula has a certain protective effect on the hair, the hair care effect is not ideal because of the large particles and the lack of good interaction between the natural ingredients.

In addition, the hair dye formula contains henna powder, which is an imported plant material with limited sources and is irritating to the skin. Its use effect has caused a lot of controversy