Terminology Part 3 Flashcards
Define
Polypeptide Chain
spiraling chain of amino acids; joined together by peptide bonds
Define
Piggyback Perm Wrap
also known as the Double-Rod, is a wrap technique where hair longer than 10 to 12 inches is wrapped on one rod from the mid-shaft to scalp, and the remaining hair is wrapped around a second rod
Define
Porosity
the ability of the hair to absorb any liquid
Define
Potassium Hydroxide / Lithium Hydroxide
a very strong alkaline ingredient used in chemical relaxers; typically marketed as no-mix, no-lye
Define
Preliminary Strand Test
performed as part of your Guest consultation to test how the hair will respond to the chemical application
Define
Processing Strand Test
also known as a Periodic Strand Test, is performed during a chemical relaxer to determine if the hair has been sufficiently relaxed
Define
Protective Cream
a cream barrier applied around the hairline and ears to protect the skin from permanent wave lotions or haircolor
Define
Release Statement
a form affirming that your Guest was advised of the potential risks that could result during the requested chemical service
Define
Reduction
the process in which oxygen is subtracted from or hydrogen is added to a substance through a chemical reaction; breaking of the disulfide bonds
Define
Salt Bonds
weak physical side bonds (cross bonds) easily broken by change in pH; reform when pH balance is restored
Define
Sensitization
allergic reaction caused by repeated exposure to a chemical or substance
Define
Side Bonds
also known as Cross Bonds, connect polypeptide chains side-by-side; responsible for strength and elasticity
Define
Single Flat Wrap
requires only one paper used in conjunction with either the double end or book
end wraps
