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Haircoloring Chapter 21

Haircoloring Chapter 21. Draw the three layers of hair. CUTICLE CORTEX MEDULLA. Three layers of hair.

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Haircoloring Chapter 21

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  1. HaircoloringChapter 21

  2. Draw the three layers of hair • CUTICLE • CORTEX • MEDULLA

  3. Three layers of hair

  4. Cuticle– Outermost layer, Protection, Scale-like, 20% strengthCortex – Middle layer, gives strength, contains melanin, 80 % strengthMedulla – inner most layer, sometimes missing in fine hair.

  5. Qualities of hair ~ • TEXTURE • DENSITY • POROSITY • ELASTICITY

  6. ~ TEXTURE • TEXTURE- The diameter of a single hair strand • COARSE HAIR– LARGE DIAMETER • Takes longer to process, most resistant • MEDIUM HAIR – MEDIUM DIAMETER • FINE HAIR – SMALL DIAMETER • Processes faster, less resistant

  7. DENSITY • Hairs per square inch • Thick hair or thin hair? • The thicker the hair the thinner the sections

  8. Density ~ What hair color has the most density? The least?

  9. POROSITY • The ability of hair to absorb liquids • High porosity • Cuticle highly lifted, damaged, rough • Hair takes or processes faster • Average porosity • Normal – healthy hair • Slightly raised cuticle • Average/Normal processing time • Low porosity • Cuticle very tight, smooth, shiny • More resistant, takes longer to process

  10. Porosity – Which hair will take color fastest?

  11. ELASTICITY • The ability of hair to stretch without breaking • Hair should stretch __50___ % of it's length • “Pull Test” is used to test elasticity of hair

  12. Law of Color • Primary colors

  13. Law of color • Secondary

  14. Law of Color • Tertiary colors

  15. Complimentary colors • Opposite colors combi on

  16. Types of haircolor • Temporary • Semi Permanent • Demi Permanent • Permanent

  17. Two categories of haircolor • Non Oxidative • No lift Oxidative • lift – with the use of peroxide

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