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26 Cards in this Set
- Front
- Back
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Half-off Base Placement |
Base control in which the hair is wrapped at 90° or perpendicular to its base section, & the rod is placed half off its base section |
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Hydroxide neutralization |
An acid-alkali neutralization reaction that neutralizes the alkaline residues left in the hair by a hydroxide relaxer & lowers the pH of the hair & scalp; hydroxide relaxer neutralization does not involve oxidation or rebuild disulfide bonds |
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Hydroxide Relaxers |
Very strong alkalis with a pH over 13; the hydroxide ion is the active ingredient in all hydroxide relaxers. |
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Keratin Proteins |
Long, coiled polypeptide chains |
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Lanthionization |
Process by which hydroxide relaxers permanently straighten hair; they remove a sulfur atom from a disulfide bond & convert it to a lanthionine bond |
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Loop Rod |
Aka circle rod; tool that is usually about 12 inches long with a uniform diameter along the entire length of the rod |
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Low pH Waves |
Perms that use sulfates, sulfites, & bisulfites as an alternative to ammonium thioglycolate; they have a low pH |
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Metal Hydroxide Relaxers |
Ionic compounds formed by a metal (sodium, lithium, or potassium) which is combined with oxygen & hydrogen |
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No-base Relaxers |
Relaxers that do not require application of a protective base cream |
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Normalizing Lotions |
Conditioners with an acidic pH that restore the hairs natural pH after a hydroxide relaxer & prior to shampooing |
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Off Base Placement |
Base control in which the had is wrapped at 45° below the center of the base section, so the rod is positioned completely of its base |
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On Base Placement |
Base control in which the hair is wrapped at a 45° angle beyond perpendicular to its base section & the rod is positioned on its base. |
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Peptide Bonds |
Aka end bonds; chemical bonds that join amino acids together, end to end in long chains, to form polypeptide bonds |
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Permanent waving |
A 2 step process whereby the hair undergoes a physical change caused by a wrapping the hair on perm rods & then the hair undergoes a chemical change caused by the application of permanent waving solution & neutalizer |
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Polypeptide Chains |
Long chains of amino acids joined together by peptide bonds |
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Single Flat Wrap |
Perm wrap that is similar to double flat wrap but uses only one end paper, placed over the top of the strand of hair being wrapped |
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Soft Bender Rods |
Tool about 12 inches long with a uniform diameter along the entire length |
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Soft Curl Permanent |
Combination of a thio relaxer & a thio pigment that is wrapped on large rods to make existing curl larger & looser |
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Spiral Perm Wrap |
Hair is wrapped at an angle other than perpendicular to the length of the rod, which causes the hair to spiral along the length of the rod |
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Straight Rods |
Perm rods that are equal in diameter along their entire length or curling area |
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Thio Neutralization |
Stops the action of a permanent wave solution & rebuilds the hair in its new curly form |
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Thio Relaxers |
Use the same ammonium thioglycolate (ATG) that is used in permanent waving, but at a higher concentration & a higher pH (above 10) |
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Thio-free Waves |
Perm that uses an ingredient other than ATG as the primary reducing agent, cysteamine |
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True acid waves |
pH between 4.5 & 7 & require heat to process; they process more slowly than alkaline waves & do not usually produce as firm a curl as alkaline waves |
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Viscosity |
Measurement of thickness or thinness of a liquid that affects how the fluid flows |
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Weave Technique |
Wrapping technique that uses zigzag partings to divide base areas |
