Chemical Texture Services – Permanent Waves

University:
Fashion Institute of Technology
Course:
SC 146 | Basic Chem For Cosmetic Frag
Academic year:

2023
Views:

236

Pages:

1
Author:

esfredint7qo

Chemical Texture Services Question Chemical services performed on overly porous hair require solutions that are: More than any other single factor, what determines the ability of the hair to hold curl? In permanent waving, the shape and type of curl are determined by the shape and type of rod and the: Rods that produce a tighter curl in the center and looser curl on either side of the strand are: The wrapping technique that provides the most control over hair ends and keeps them evenly distributed over the entire length of the rods is a: The wrap that is used on endpaper folded in half over the hair ends like an envelope is a(n): All perm wraps begin by sectioning the hair into: In permanent waving , panels of hair are divided into smaller subsections called: The angle at which a permanent wave rod is positioned on the head is referred to as: Caution should be used with on-base rod placement to avoid additional: The two methods of wrapping the hair around a perm rod are: In the croquinole method of wrapping, the hair is wound from: Once in the cortex, the waving solution breaks the disulfide bonds through a chemcal reaction called: In permanent waving, the reduction reaction is due to the addition of: The most common reducing agents used are: The main active ingredient or reducing agent in alkaline permanent waves is: Most alkaline permanent waves have a pH between: Exothermic waves create a chemical reaction that heats the solution and speeds up: Answer low pH elasticity wrapping method concave rods double flat wrap bookend wrap panels base sections base direction stress and tension on the hair croquignole and spiral ends to scalp reduction hydrogen thioglycolic acids ammoium thioglycolate 9.0 and 9.6 processing