Date peel red pigment, and preparation and application thereof

A technology for red pigment and jujube peel, which is applied to natural pigment and its preparation and in the field of hair dyeing, can solve the problems of high cost, unsuitable for industrialized production, complicated process of jujube peel pigment, etc., and achieves low cost, fast dyeing speed, and no occurrence of Effects of allergic reactions

Active Publication Date: 2013-02-13
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: to overcome the disadvantages in the prior art that the preparation process of jujube skin pigment is complicated, the cost is high, and it is not suitable for industrial production, and to provide a kind of jujube skin red pigment and its preparation and ecological hair dyeing method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Wash the jujube skin with water, dry or dry it and break it; weigh 50g of the broken jujube skin, extract it with 750mL aqueous solution under reflux, add 0.5% soda ash (mass percentage of soda ash relative to the jujube skin), and mix Put it in an ultrasonic-microwave extractor, and treat it with microwave for 100s at a microwave power of 350w; then use an ultrasonic power of 200w, and ultrasonically treat it for 30min; The filtrate is filtered with a polymer membrane with a molecular weight cut-off of 7500 Daltons, the filtration pressure is 0.75 MPa, and the filtration temperature is 30 ° C. The permeate is collected to obtain a jujube red pigment solution; the jujube red pigment solution is spray-dried and set to The air temperature is 150°C, and the air outlet temperature is 80°C. The solid obtained after drying is pulverized to obtain jujube red pigment with a yield of 13%.

Embodiment 2

[0019] Wash the jujube skin with water, dry or dry it and break it; weigh 50g of the broken jujube skin, reflux extract with 500mL aqueous solution, add 0.25% soda ash (mass percentage of soda ash relative to the jujube skin), mix Put it in an ultrasonic-microwave extractor, and treat it with microwave for 50s at a microwave power of 200w; then use an ultrasonic power of 100w, and ultrasonically treat it for 10min; The filtrate is filtered with a polymer membrane with a molecular weight cut-off of 5000 Daltons, the filtration pressure is 0.5 MPa, and the filtration temperature is 20°C. The permeate is collected to obtain a jujube red pigment solution; the jujube red pigment solution is spray-dried and set to The air temperature was 140°C, and the outlet air temperature was 70°C. The solid obtained after drying was pulverized to obtain jujube red pigment with a yield of 11%.

Embodiment 3

[0021] Wash the jujube skin with clean water, dry or dry it and break it; weigh 50g of the broken jujube skin, extract it with 1000mL aqueous solution under reflux, add 0.75% soda ash (the mass percentage of soda ash relative to the jujube skin), mix Put it in an ultrasonic-microwave extractor, and treat it with microwave for 150s at a microwave power of 500w; then use an ultrasonic power of 300w, and ultrasonically treat it for 50min; The filtrate is filtered with a polymer membrane with a molecular weight cut-off of 10,000 Daltons, the filtration pressure is 1MPa, and the filtration temperature is 40°C. The permeate is collected to obtain a jujube red pigment solution; the jujube red pigment solution is spray-dried, and the air inlet is set The temperature is 160°C, the air outlet temperature is 90°C, and the solid obtained after drying is pulverized to obtain jujube red pigment with a yield of 16%.

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Abstract

The invention provides a date peel red pigment, and preparation and application thereof. The preparation and application comprise 1) preparation of the date peel red pigment; and 2) ecological hair dyeing of the date peel red pigment. The date peel red pigment has the advantages of simple preparation method, low cost, high extraction efficiency and high pigment purity. When being used for ecologically dyeing hair, the natural plant hair dye prepared from the date peel red pigment as the main raw material has the advantages of high dyeing speed, high dye-uptake rate, high gloss after dyeing, no stimulation or anaphylactic reaction to the human body, high safety, no toxicity and favorable effect.

Description

technical field [0001] The invention relates to a natural pigment, its preparation and a method in the technical field of hair dyeing, in particular to a jujube red pigment, its preparation and an ecological hair dyeing method. Background technique [0002] Natural pigments are mostly extracted from plant flowers, grasses, trees, stems, leaves, fruits, seeds, bark, and roots. The history of the application of natural pigments in my country has been thousands of years, and natural pigments as plant dyes have always been the mainstream of ancient dyeing technology in my country. In modern times, because natural pigments are non-toxic, harmless and non-polluting, they have good biodegradability and good compatibility with the environment. Therefore, natural pigment is more and more subject to people's favor. [0003] Jujube is also known as jujube. It is the fruit of the jujube tree of the Rhamnaceae jujube plant. It has been listed as one of the "five fruits" (peach, plum, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B61/00C09B67/10C09B67/54A61K8/97A61Q5/10A61K8/365A61K8/73
Inventor 纪俊玲蒋海华汪媛姚超陈文丽黄东明
Owner CHANGZHOU UNIV
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