Chapter 20: Week 4

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Flashcards on Chapter 20: Week 4, created by Efrain Ruiz on 02/01/2022.
Efrain Ruiz
Flashcards by Efrain Ruiz, updated 12 months ago
Efrain Ruiz
Created by Efrain Ruiz 12 months ago
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Question Answer
Low-PH Waves Perms that use sulfates, sulfites, and bisulfites as an alternative to ammonium thioglycolate; they have a low pH
Metal Hydroxide Relaxers Ionic compounds formed by a metal (sodium, potassium, or lithium) which is combined with oxygen and hydrogen.
Book End Wrap Perm wrap in which one end paper is folded in half over the hair ends like an envelope.
Normalizing Lotion Conditioners with an acidic pH that restore the hair's natural pH after a hydroxide relaxer and prior to shampooing.
Off-Base Placements Base control in which the hair is wrapped at a 45-degree angle beyond perpendicular to its base section, and the rod is positioned on its base.
Peptide Bonds Also known as end bonds; chemical bonds that join amino acids together, end to end in long chains, to form polypeptide chains
Permanent Waving A two-step process whereby the hair undergoes a physical change caused by wrapping the hair on perm rods, and then the hair undergoes a chemical change caused by the application of permanent waving solution and neutralizer.
Polypetide Chains Long chains of amino acids joined together by peptide bonds.
Side Bonds Bonds that cross-link the polypeptide chain together and are responsible for the extreme strength and elasticity for human hair
Soft Bender Tool about 12-inches long with a uniform diameter along the entire length
Soft Curl Permanent Combination of a thio relaxer and a thio permanent that is wrapped on large rods to make existing curl larger and looser.
Thiogylcolic Acid a colorless liquid with a strong, unpleasant odor, is the most common reducing agent. ammonium thioglycolate.
Thio Neutralization Stops the action of a permanent wave solution and rebuilds the hair in its new curly form.
Thio Relaxers Use the same ammonium thioglycolate (ATG) that is used in permanent waving, but at a higher concentration and a higher pH (above 10)
Thio Free Waves Perm that uses an ingredient other than ATG as the primary reducing agent, such as cysteamine or mercaptamine
True Acid Waves Have a pH between 4.5 and 7.0 and require heat to process; they process more slowly than alkaline waves, and do not usually produce as firm a curl as alkaline waves.
Viscosity The measurement of the thickness or thinness of a liquid that affects how the fluid flows.
Weave Technique Wrapping techinque that uses zigzag partings to divide base areas.
Amino Acids Compounds made up of carbon, oxygen, hydrogen, nitrogen, and sulfur
Alkaline Waves Also known as cold waves; have a pH between 9.0 and 9.6, use ammonium thioglycolate (ATG) as the reducing agent, and process at room temperature without the addition of heat
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