2What is it?Color is the visual perception of the reflection of light.
3Law of Color Only three colors, called primary “pure” colors Yellow, red and blue
4Secondary Colors Two primary colors mixed in varying proportions = OrangeGreenViolet
5Color Wheel 12 –hue color circle created from the three primary colors Name of a color referred to as tone or hue, identified by its position on the color wheel.Tone can be described as warm, cool or neutral.
6Warm and Cool ColorsColors can be classified as either warms or cool colors
7Complementary Colors Opposite one another on the color wheel. When mixed equally they neutralized each other
8Characteristics of Color Color has three main characteristicsHue- identified based on it’s position on the color wheelValue/level degree of lightness or darkness of a color relative to itself and other colorsIntensity- the vividness, brightness or saturation within its own level
9Identifying Existing Color Contributing color + Artificial Color = Final color result
10Melanin Two types of melanin in the cortex of the hair Eumelamin-black pigmentPheomelamin- red pigment
11Gray Hair Melanocytes slow down production Strands lose color Heredity Different patterns of grayPercentages of gray vary with individuals
12Applications for Gray75-80% gray hair; adjust color formula to one level darker than desired level25-30% gray; apply a color one level lighter than the desired shade
13Gray HairPre-soften resistant hair or pre-lighten to increase porosity
14Hair Color Chemistry Types of hair color Non-oxidative-non-reactive, direct dyes that only coat the surface of the hair shaft/ nothing to lighten and no chemical changes occur. Certified colors used in foods, drug and cosmetics last until shampooed out
15Non-Oxidative Color Semi-permanent Last through several shampoos, dye molecules in solution capable of penetrating the cuticle layer, smaller in size, slightly alkaline.
16Oxidative Hair ColorDemi-uses low volume peroxide developer, only add color to the hair, cannot lift hair color
17Permanent Hair Colors Combined with peroxide, chemical reaction occurs Small molecules penetrate the hair, oxidize in the cortex and link to form a permanent colored molecule
18Permanent Hair ColorsAlso referred to as aniline derivative tints/ penetrate the cuticle and cortex, remain until they are removed by chemical means, hair grows out and is cut off.Main ingredient is paraphenylene diamine24 hour patch test mustBe given before any permanentHair color applicationTo ensure the client is notAllergic to the product
19LightenersBleaching or de-colorizing, used when a lighter hair color is desiredInvolves the oxidation of the natural melanin in the hair.Hair goes through several stages of color changes as it is lightened
20Types of Lighteners On-the-scalp lighteners Gentle can be applied directly on the scalpOil lighteners pH 9Cream lighteners pH 9Off- the- scalpPowder bleach, alkaline salts and strong oxidizing agents. Stronger than oil or cream
21Developers Hydrogen peroxide (H²O²) most common oxidizing agent Volume = amount of oxygen gas removed from solution. Also called developer
22Vegetable, Metallic and Compound Dyes Not professionally usedContain vegetable dyesMetallic salts and or combination of the twoHennaInterfere with other professional beauty servicesCan be toxic to the client and the operator