Preparation method of body painting pigment based on natural nontoxic materials
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A technology of body painting and non-toxic materials, applied in the field of painting pigments, can solve the problems of skin irritation, troublesome cleaning process, easy peeling and fading, etc., and achieve the effect of moderate dry time, good hiding power and bright color
Inactive Publication Date: 2015-05-20
JIANGNAN UNIV
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[0002] The current color painting pigments are mainly acrylic pigments, which are artificially synthesized polymeric pigments, which can be dried within a few minutes, which is not suitable for the situation t
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Embodiment 1
[0015] Embodiment 1: black pigment preparation
[0016] (1) Preparation of body paint binder: Add 8 g of edible glycerin and 71.5 g of water into a three-necked flask with a thermometer, mix and stir at room temperature for 10-15 minutes, then slowly add 18 g of gum arabic powder and 2 g of gelatin , heated to 60°C, stirred until uniform paste, added 0.3g of gellan gum and 0.2g of xanthan gum, stirred quickly and evenly, sealed and bottled.
[0017] (2) Preparation of black sesame pigment: take 40g black sesame, wash with deionized water, dry in vacuum at low temperature, wash 150min at 50°C with 5% sodium bicarbonate solution 400mL, until the black sesame epidermis comes off and becomes white, Remove the white sesame particles by filtration, neutralize the black solution with acetic acid, adjust the pH to 3-4 to form flocculent precipitation of the pigment, remove the supernatant by centrifugal washing several times, collect the pigment and dry it in vacuum at low temperature...
Embodiment 2
[0019] Embodiment 2: preparation of red pigment
[0020] (1) Preparation of body paint binder: Add 8 g of edible glycerin and 71.5 g of water into a three-necked flask with a thermometer, mix and stir at room temperature for 10-15 minutes, then slowly add 18 g of gum arabic powder and 2 g of gelatin , heated to 60°C, stirred until uniform paste, added 0.3g of gellan gum and 0.2g of xanthan gum, stirred quickly and evenly, sealed and bottled.
[0021] (2) Preparation of red pigment: grind cochineal powder and pass through a 200-mesh sieve for later use.
[0022] (3) Preparation of body paint: slowly add 3 g of cochineal into 10 g of binder, and stir evenly at high speed to obtain red body paint.
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Abstract
The invention relates to a preparation method of a body painting pigment based on natural nontoxic materials. The body painting pigment consists of an adhesive and pigment. The adhesive consists of the following components in parts by mass: 18 parts of gum acacia powder, 8 parts of edible glycerin, 2 parts of gelatin, 0.3 part of gellan gum, 0.2 part of xanthan gum and 71.5 parts of water; and the pigment mainly contains natural plant extracts such as black sesame melanin, maize yellow and carotene compound, natural animal extracts such as cochineal and shrimp shell pigment, microbial fermentation pigment such as phaffia color and the like. The preparation method comprises the steps of stirring the raw materials of the adhesive uniformly and then adding the pigment in a certain ratio for mixing colors uniformly to obtain the body painting pigment. The prepared pigment is natural and nontoxic, does not have stimulus to the skin, is easy to scrub (wash with water or clean with a detergent), moderate in surface drying time and good in hiding power and water tolerance, does not have organic solvent volatilization, and is environment-friendly, sanitary, safe and healthy.
Description
technical field [0001] The invention discloses a method for preparing body paint pigments based on natural non-toxic materials, belonging to the field of paint pigments. Background technique [0002] The current color painting pigments are mainly acrylic pigments, which are artificially synthesized polymeric pigments, which can be dried within a few minutes, which is not suitable for the situation that needs to be used under slow drying conditions; The adhesion is strong, the cleaning process is troublesome, and it is irritating to human skin. For oily body paints, most of them have poor adhesion and are easy to fall off and fade. To this end, the present invention adopts natural non-toxic materials as the main bonding substance to develop a kind of natural, non-toxic, environment-friendly color painting pigment, which not only has strong hiding power, good water resistance, moderate adhesion, moderate dryness, and is not easy It has the characteristics of color fading, ea...
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