Podcast
Questions and Answers
What is semi-permanent hair color?
What is semi-permanent hair color?
Dye molecules sit on the outside of the hair and last 2-3 weeks without penetrating the cuticle.
What is demi-permanent hair color?
What is demi-permanent hair color?
Dye molecules penetrate the cuticle without lifting and last 6-8 weeks.
What is permanent hair color?
What is permanent hair color?
Oxidative dyes that produce lift and displace melanin.
What are the three types of dyes commonly used in hair color products?
What are the three types of dyes commonly used in hair color products?
What is oxidative dye?
What is oxidative dye?
What is pre-oxidized dye?
What is pre-oxidized dye?
What is direct dye?
What is direct dye?
Oxidative dyes normally have a ____ base and include either ___ or ___ in the formula.
Oxidative dyes normally have a ____ base and include either ___ or ___ in the formula.
Why is an alkaline environment required in hair coloring?
Why is an alkaline environment required in hair coloring?
What are the two separate components of permanent hair colors?
What are the two separate components of permanent hair colors?
What is a primary color?
What is a primary color?
List the primary colors.
List the primary colors.
What is a secondary color?
What is a secondary color?
List the secondary colors.
List the secondary colors.
What is a tertiary color?
What is a tertiary color?
List the tertiary colors.
List the tertiary colors.
What do all primary colors mixed equally create?
What do all primary colors mixed equally create?
What does it mean to control or cancel dominant pigment?
What does it mean to control or cancel dominant pigment?
How do you control or cancel a dominant pigment?
How do you control or cancel a dominant pigment?
To cancel out yellow in hair, what are the two missing primary colors?
To cancel out yellow in hair, what are the two missing primary colors?
What are the types of lighting in hair color?
What are the types of lighting in hair color?
Incandescent light favors what kind of tones?
Incandescent light favors what kind of tones?
What provides a warm reflection against hair and skin?
What provides a warm reflection against hair and skin?
Fluorescent light has a diffusing capacity that reduces ______ and spreads ______.
Fluorescent light has a diffusing capacity that reduces ______ and spreads ______.
Fluorescent lighting highlights what tones on hair and skin?
Fluorescent lighting highlights what tones on hair and skin?
Pure white/natural light gives what tones?
Pure white/natural light gives what tones?
Without light, there is no?
Without light, there is no?
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Study Notes
Types of Hair Color Dyes
- Semi-permanent: Sits on the hair's surface, lasting 2-3 weeks without penetrating the cuticle.
- Demi-permanent: Penetrates the cuticle without lifting, lasting 6-8 weeks.
- Permanent: Involves oxidative dyes that lift and displace melanin in the hair.
Categories of Dyes
- Commonly used dyes include oxidative dyes, pre-oxidized dyes, and direct dyes.
Definitions of Dyes
- Oxidative Dyes: Colorless until mixed with hydrogen peroxide, they develop and deposit in the cortex, creating the final color result.
- Pre-oxidized Dyes: Semi to semi-permanent, partially oxidized dyes that require low-volume peroxide to complete the oxidation.
- Direct Dyes: Large pre-colored molecules that deposit between cuticle and cortex, needing no oxidation.
Chemical Composition
- Oxidative dyes typically have an alkaline base containing ammonia or ammonia replacements.
- An alkaline environment is necessary to swell the hair and open the cuticle layer, allowing oxygen liberation from hydrogen peroxide.
Permanent Coloring Components
- Permanent hair colors consist of two parts: dye precursors with ammonia in an alkaline base, and a stabilized hydrogen peroxide solution.
Color Theory
- Primary Colors: Colors that cannot be created, including red, yellow, and blue.
- Secondary Colors: Result from mixing two primary colors in equal parts, yielding orange, violet, and green.
- Tertiary Colors: Created from combining a primary and a secondary color, such as yellow-green and blue-violet.
Mixing Colors
- Equal mixing of primary colors results in a neutral color.
- To control or cancel dominant pigments, one should neutralize unwanted color results by moving across the PM color map.
- To eliminate yellow tones, red and blue are needed.
Lighting Types and Their Effects
- Incandescent Light: Favors warm tones and creates a warm reflection against hair and skin.
- Fluorescent Light: Diffuses light, reduces shadows, and highlights cool tones on hair and skin.
- Pure White/Natural Light: Provides the truest tones.
Importance of Light
- Light is essential for perceiving color; without it, color does not exist.
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