Perm Skills Flashcards
Pre Perm Analysis
an analysis of four things:
The analysis helps you with 3 things:
porosity
elasticity
texture
density
choose the right BASE AND ROD SIZE
select proper PERM SOLUTION
manage PROCESSING TIME
Porosity
the ability of the hair to absorb moisture, liquids or chemicals.
The more porous, the more able it is to absorb perm solution
Porous Hair = __________ acid perm
Resistant Hair = needs stronger __________ solution in order to __________ cuticle and allow perm chemicals to be absorbed
Highly or excessively porous hair = needs to be ______________ before perm with _____________ to equalize porosity
porous = MILD ACID perm
Resistant = Stronger ALKALINE perm
SOFTENS CUTICLE
Highly Porous = reconditioned and pre-wrapped to equalize porosity
What test is used to determine porosity?
Finger test
Run your thumb and finger down the hair shaft against direction of growth (ends to base). If it’s rough, the cuticle scales are raised and therefore more porous
Elasticity
Normal dry hair:
Wet hair:
Hair with poor elasticity
The hairs ability to stretch without breaking.
NORMAL DRY HAIR: can be stretched 1/5 (20%) of its length
WET HAIR: can be stretched 40%-50% of length
Will not return to it’s normal length
Hair that lacks elasticity is also known as
Resiliency
Can react adversely to perm solution
Not advisable to perm!
Elasticity test aka ____________
Tests ___________
Purpose of elasticy test
Pull test
Structural strength
Checks the ability of hair to stretch and return to original shape without breaking
Elasticity tests assesses damage to the _______
Internal structure of hair / CORTEX
Elasticity test
HOW TO
If hair returns to ____% or less, it is structurally week and needs _______
- Remove strand of hair from SIDE OF HEAD
- Using THUMB NAIL and index finger, run the length of hair strand as if CURLING A RIBBON, multiple times, creating a series of small curls
- Gently pull hair taught for 10 SECONDS and release
50% or less needs conditioning
Texture
Which textures are most difficult to perm
Degree of coarseness or fineness in the hair
Fine and coarse hair
Fine hair is resistant because of
Medium hair has on average ______ layers of cuticle and generally _______
Coarse hair may be resistant due to
Tightly packed cuticle
7-10 layers of cuticle / accepts product well
Increased number of cuticle layers
Density
In perming, density helps determine
The amount of follicles per square inch on the scalp
Referred to as light, medium, or heavy (thin medium or thick)
HELPS DETERMINE the amount of hair that will be wrapped on each rod
Denser hair requires SMALLER BASES
Perm manufacturers label their products based on things
Texture, porosity, desired curl
Tenacity
The ease or difficulty with which a product can PENETRATE THE CUTICLE.
Physical phase
3 steps:
Distribute
Section
Wrap