Efficient scurf removing and itch relieving composite as well as preparation method and application thereof in shampoos

Abstract

The invention discloses an efficient scurf removing and itch relieving composite as well as a preparation method and an application thereof in shampoos. The efficient scurf removing and itch relieving composite comprises bispyrithione and a water-soluble chitosan derivative, and has the following advantages that (1) the composite is a solid powder, thus being convenient to use; (2) the composite can be evenly distributed in the shampoos, has enough contact surface with bacteria and fungi which cause the scurf during hair washing, thus being capable of giving a full play to the efficacy; (3) the efficacies of the antibiosis, the moisture preservation, and the chelation and the like of the water-soluble chitosan derivative are combined with the efficacies of the bispyrithione, thus improving the scurf removing effect of the bispyrithione, lowering the degrease capability of the bispyrithione, reducing the sensitive degree of the bispyrithione to the metal icons, and achieving the purpose of synergism; and (4) the composite is used to greatly improve the color stability in the shampoos, and has less acrimony to the skin. The shampoos prepared by the efficient scurf removing and itch relieving composite have preferable stability as well as scurf removing and itch relieving properties.

Description

technical field [0001] The invention relates to the technical field of daily chemicals, in particular to a high-efficiency anti-dandruff and anti-itch composition and its preparation and application in shampoo. Background technique [0002] The surface of the human scalp and the internal structure of the scalp form a complete ecosystem. There are secretions of sebaceous glands, dust, dirt, various bacteria and so on on the surface. The scalp is an active tissue that is constantly renewing and aging, and is easily affected by the outside world. Through normal metabolism, the excreted secretions accumulate on the surface of the scalp. Dander and scalp metabolites, the fungus in turn uses dust mites and human dander as the main source of nutrition, thus forming a miniature ecosystem on the human scalp. It is generally believed that symbiotic dermatophytes, such as dermatophyte ovale and other dermatophytes, if their growth is unbalanced, enter the hair follicles, and their ana...

AI Technical Summary

Problems solved by technology

However, when zinc pyrithione (ZPT) is used in shampoo formulations, there are still some technical defects: (ZPT) will settle in the formulation; it is easy to change color when it encounters iron ions, and it will cause serious problems if it is not handled carefully or the equipment requirements are not high. Discoloration occurs; it is unstable to light and will cover the pearly luster of the shampoo. In addition, its degreasing ability is strong, and long-term use will cause dry hair and other problems

However, water-soluble chitosan derivatives are generally not used alone, mainly because the anti-dandruff effect is lacking, and the effect of zinc pyrithione (ZPT) or bispyridinethione (SPT) cannot be achieved yet.

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