Chapter 20 B Flashcards
What process permanently rearranges the basic structure of curly hair into a straight or smoother form?
Chemical hair relaxing
The most common type of chemical hair relaxes are ammonium Thio, guanidine hydroxide and what else?
Sodium hydroxide
The measurement of the thickness or thinness do a liquid that affects how the fluid flows is known as what?
Viscosity
Before giving a relaxing treatment to curly hair, the cosmetologist must perform an analysis of the clients hair and scalp testing for porosity and what else?
Elasticity
What is the process by which hydroxide relaxers permanently straighten hair, the relaxers remove a sulfur atom from a disulfide bond and convert it into a lanthionine bond?
Lanthionization
Relaxers that are ionic compounds formed by metal combined with oxygen and hydrogen are known as
Metal hydroxide relaxers
Sodium hydroxide are commonly called
Lye relaxers
The acting n of a guanadine hydroxide or no lye relaxer causes the hair to
Soften and swell
These types of relaxers are intended for use on color-treated,damaged, or fine hair.
Low pH
Hydroxide relaxers are usually sold in what types of formulas
Base and no base
The scalp and skin are protected from possible burns when using a base hair relaxer by applying what?
Base cream
Application of the relaxer for a retouch begins in the most resistant areas, usually at the back of the head or where?
Under the occipital bone
If using a no base relaxer a protective cream is applied to where?
To the hairline and around the ears
General guidelines suggest that for fun color treated or damage here which strength of relaxer should be used?
Mild
General guidelines suggest that for course extremely curly and resisting hear what strength should be used
Strong or super
Inspecting the action of the relax of us moving in passing the strand to the scalp is called
Periodic strand testing
To check relaxer processing smooth and press the strand to the scalp using the back of the cone or your fingers if the current returns what should you do
Continue processing
When applying hydroxide relaxer on virgin hair the process and cream is applied last to where
Scalp area and hair ends
The product is applied where first when applying a sodium hydroxide retouch
New growth only
What product is used to restore the hair to a normal acidic pH
Normalizing lotion
The best type of shampoo to use after the chemical relaxer is
Neutralizing shampoo
I’m here relaxing treatment should be avoided when examination shows presence of what
Scalp abrasions
Of the general types of hair relaxers which one does not require pre-shampooing
Sodium hydroxide
One safety precaution for here relaxing as to avoid went to the scalp with a comb or fingernails
Scratching
What is one saved up a caution that must be followed with all chemical here relaxing services
Wearing protective gloves
After the hair has been processed with a relaxer and before the shampoo the hair should be thoroughly what
Rinsed
When hair has sufficiently been straightened the hair is rinsed the rapidly and thoroughly with what temperature of the water
Warm
Keratin straightening treatments work by fixing the Charitan in place and what type of manner
Semi permanent
This is the type base chemical service that reforms curly and wavy hair into looser and larger curls and waves
Soft curl permanent
When using the comb method of application how is the relaxing cream applied
With the back of the comb
After saturating the rods with neutralizer and a softball per minute and processing according to manufactures directions the next step is to do what
Rinse with the rods still in the hair
When processing is complete for softball permanent what is done after rinsing the hair thoroughly with warm water
Conditioner is applied
