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WorksheetsChapter 20: Chemical Texture Services (perm waving)
Total questions: 43
Worksheet time: 30mins
Texture services can be used to ____________________ straight hair, _____________________ overly curly hair, or ____________________ tightly coiled hair.
(a)
(a) services are hair services that cause a chemical change within the hair's natural wave or curl pattern.
The exterior layer of the hair
cuticle
cortex
medulla
The middle layer of the hair
cuticle
cortex
medulla
What does pH stand for?
(a)
The substance that has a pH below 7
acid
alkaline
neutral
The substance that has a pH above 7
acid
alkaline
neutral
Chemical side bonds formed when the sulfur atoms in two adjacent protein chains are joined together
keratin proteins
disulfide bonds
salt bonds
hydrogen bonds
Relatively weak physical side bonds that are the result of an attraction between negative and positive electrical charges
keratin proteins
disulfide bonds
salt bonds
hydrogen bonds
Weak physical side bonds that are the result of an attraction between opposite electrical charges
keratin proteins
disulfide bonds
salt bonds
hydrogen bonds
What are the two changes that take place during the permanent wave process?
(a)
What do alkaline permanent waving solutions do?
(a)
The most common reducing agent in permanent wave solutions
thioglycolic acid
ammonium thioglycolate
glyceryl monothioglycolate
The addition of ammonia to thioglycolic acid produces a new chemical called
thioglycolic acid
ammonium thioglycolate
glyceryl monothioglycolate
The main active ingredient in true acid and acid-balanced waving lotions
thioglycolic acid
ammonium thioglycolate
glyceryl monothioglycolate
What are the three separate components of all acid waves?
(a)
Another name for alkaline waves
cold waves
acid-balanced waves
exothermic waves
endothermic waves
Processed at room temperature, do not require added heat, process more quickly, produce firmer curls
cold waves
acid-balanced waves
exothermic waves
endothermic waves
Create a chemical reaction that heats up the waving solution when chemical A is mixed with chemical B
cold waves
acid-balanced waves
exothermic waves
endothermic waves
Activated by an outside heat source, usually a conventional hood-dryer type hair dryer
cold waves
acid-balanced waves
exothermic waves
endothermic waves
Chemical texture services include:
(a)
When does over processing usually occur?
the first 10 to 15 minutes
the first 15 to 20 minutes
the first 5 to 10 minutes
Stops the action of the waving solution and rebuilds the hair into its new curly form
thio neutralizaion
hydrogen peroxide
oxidative reaction
The most common neutralizer
thio neutralization
hydrogen peroxide
oxidative reactions
Always (a) the hair after the recommended rinsing time.
The most common type of perm rod
concave rods
straight rods
soft bender rods
loop/circle rods
Equal in diameter along their entire length or cutting area
concave rods
straight rods
soft bender rods
loop/circle rods
Thin, and absorbent, used to control the ends of the hair when wrapping and winding the hair on the perm rods
(a)
This hair base is held at 45 degrees away from you
on base
half base
off base
This hair base is held at a 90 degree angle
on base
half base
off base
This hair base is held at 45 degrees toward you
on base
half base
off base
Base direction refers to the angle at which the rod is positioned on the head:
(a)
What are the two main methods of wrapping the hair?
(a)
Gloves are not required when working with permanent wave solutions in the state of TN
true
false
Adding wave or curl to the hair is known as what chemical texture service?
(a)
Removing curl or waves; leaving the hair smooth and straight is known as what chemical texture service?
(a)
Loosening overly curly hair; changing tightly curly or coiled hair into loose curls or waves is known as what chemical texture service?
(a)
What is the natural pH of hair?
(a)
The hairs ability to absorb moisture:
(a)
The hairs ability to stretch and return to its original shape without breaking.
(a)
It is important to do an elasticity test before perming the hair.
true
false
When rinsing perm solution from hair, how long should you rinse on average length hair?
3 minutes
10 minutes
5 minutes
1 minute
When rinsing perm solution from hair, how long should you rinse on longer hair?
5 minutes
7 minutes
3 minutes
1 minute
