332A Chemical Texture Services 2 — Questions and Answers
Question 1: What does 'exothermic' mean in relation to perm products?
- The product absorbs heat from the environment
- The product generates its own heat through a chemical reaction (Correct answer)
- The product requires an external heat source
- The product processes at room temperature only
Correct answer: The product generates its own heat through a chemical reaction
Exothermic perms generate their own heat through a self-activating chemical reaction when the components are mixed. This internal heat helps open the cuticle and speeds processing without an external heat source.
Question 2: What is a test curl and why is it performed?
- A decorative curl placed at the front of the style
- A small section processed to evaluate curl development before processing the entire head (Correct answer)
- A curl created with a curling iron before the perm
- The first rod placed during wrapping
Correct answer: A small section processed to evaluate curl development before processing the entire head
A test curl is performed by unwinding a perm rod slightly to check if the curl pattern has formed to the desired degree. It helps determine if processing is complete or if more time is needed.
Question 3: What wrapping technique involves wrapping hair from the ends toward the scalp?
- Spiral wrap
- Croquignole wrap (Correct answer)
- Piggyback wrap
- Weave wrap
Correct answer: Croquignole wrap
Croquignole wrapping starts at the ends and rolls the hair toward the scalp around the rod. It is the most common wrapping technique and produces a curl that is tighter at the ends and looser near the scalp.
Question 4: What is the purpose of end papers (end wraps) in perm wrapping?
- To add moisture to the hair ends
- To ensure smooth, even wrapping of the hair ends around the rod without fishhooks or crimping (Correct answer)
- To speed up processing at the ends
- To protect the rod from solution damage
Correct answer: To ensure smooth, even wrapping of the hair ends around the rod without fishhooks or crimping
End papers are placed around the hair ends to ensure they wrap smoothly and evenly around the perm rod. Without end papers, the ends can bend, buckle, or form fishhooks, resulting in an uneven curl pattern.
Question 5: What is over-processing in the context of permanent waving?
- Processing the perm for less time than recommended
- Leaving the perm solution on too long, resulting in damage, weak curls, or straight frizzy hair (Correct answer)
- Using too many rods for the head size
- Wrapping the hair too tightly on the rods
Correct answer: Leaving the perm solution on too long, resulting in damage, weak curls, or straight frizzy hair
Over-processing occurs when the perm solution is left on too long or is too strong for the hair type. It breaks too many disulfide bonds, weakening the hair structure and resulting in limp, frizzy, or damaged hair that may not hold a curl.
Question 6: What hair condition is a contraindication for performing a perm service?
- Thick, coarse hair
- Virgin, unprocessed hair
- Hair that has been recently treated with a metallic dye (Correct answer)
- Hair with a natural wave pattern
Correct answer: Hair that has been recently treated with a metallic dye
Metallic dyes are a contraindication for perming because they can react violently with the perm solution's chemicals, causing heat, discolouration, hair breakage, or even dissolution of the hair shaft.
332A Chemical Texture Services 2
What does 'exothermic' mean in relation to perm products?