Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Cosmetology > Chapter 20- Chemical Texture Services > Flashcards

Chapter 20- Chemical Texture Services Flashcards

1
Q

Glycerol monothioglycolate

A

Is the main ingredient in the true acid and acid-balanced waving lotion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Ammonium thioglycolate

A

Is the main ingredient or reducing agent in alkaline perms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The alkalinity of the perm chosen should do what?

A

Should correspond to the resistance,strength, and porosity of the cuticle layer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Porous hair with a damaged cuticle layer is easily what?

A

Is easily penetrated and could be further damaged by a highly alkaline permanent waving solution.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Reduction

A

The chemical action of waving solution breaks the disulfide bonds through a chemical reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the action of permanent waving solution?

A

The action is to soften and expand the hair

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

When do disulfide bonds form?

A

When the sulfur atoms in two adjacent protein chains are joined together

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are keratin proteins made up of?

A

Are made of long chains of amino acids linked together end to end like beads

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Polypeptide chains

A

Are long chains of amino acids joined together by peptide bonds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Peptide bonds

A

Chemical bonds that join amino acids together to form polypeptide chains

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Acid-balanced waves

A

Waves that process more quickly and produce firmer curls that true acid waves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Exothermic perm

A

Activated by heat created chemically within the product

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Endothermic

A

A perm activated by an outside heat source, usually a conventional hood dryer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Fine hair

A

Easier to process,more fragile, and more susceptible to damage during the perming process

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Coarse hair

A

Usually requires more processing than medium or fine hair and may also be more resistant and course

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

The amount of processing time should be determined by?

A

The strength of the solution, not necessarily the perms processing time.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

In permanent waving where does most of the processing take place? Within what time?

A

The processing takes place as soon as the solution penetrates the hair, within the first 5-10 minutes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

A properly processed permanent wave should what?

A

Should break and rebuild approximately 50% of the hair’s dulsifide bonds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

If too many disulfide bonds are broken in the perming process what will happen?

A

The hair will be too weak to hold a firm curl

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

If hair is under processed

A

Further processing will make it curlier

21
Q

Neutralization

A

Rebuilds disulfide bonds that were broken by the waving solution

22
Q

What happens if the hair is not rinsed properly?

A

The hydrogen peroxide in the neutralizer can react with waving solution and cause the hair color to lighten

23
Q

Course hair with strong, resistant cuticle layer needs what?

A

Needs the additional swelling and penetration that is provided by a stronger and more highly alkaline waving solution

24
Q

After applying neutralizer what do you do?

A

Always rinse the perm solution from the hair for the last 5 minuted

25
Q

What do some manufacturers recommend?

A

The application of a pre-neutralizing conditioner after blotting and before application of neutralizer

26
Q

Acidic type of liquid protein conditioner

A

Can be applied to the hair and dried under a warm dryer for like 5 minutes or more prior to neutralization of hair is damaged

27
Q

Thio
neutralization

A

Rebuilds the disulfide bonds by removing the hydrogen that is added by the permanent waving solution

28
Q

Preliminary test curl

A

Is effective for determining correct processing time; expected results ; rod and wrap choice; how color will be affected; and if the hair will break,dry, or frizz

29
Q

Concave
rods

A

Have a small diameter in the center area and gradually increase to their largest diameter at the ends

30
Q

End papers or end wraps

A

Are thin, absorbent paper used to control the ends of the hair when wrapping and winding hair on the perm rod

31
Q

The double flat wrap

A

Is a perm wrap in which one end paper is placed over and under the strand of the hair being wrapped

32
Q

The single flat wrap

A

Is a perm wrap in which one end paper is placed over the strand of the hair being wrapped

33
Q

Book end wrap

A

When one end paper us folded in half over the hair

34
Q

Base sections

A

All perm wraps begin by sectioning the hair into panels that are further divided into sub sections

35
Q

Base placement

A

Refers to the position of the rod in relation to its base section and is determined by the angle at which the hair is wrapped.

36
Q

On-base placement

A

The hair is wrapped 45-degees beyond perpendicular to its base sections, and the rod is positioned on its base

37
Q

Half off-base placement

A

The hair is wrapped at an angle of 90 degrees or perpendicular to its base section, and the rod is positioned half off its base

38
Q

Off-base

A

The hair is wrapped 45-degrees below the center of the base section, so that the rod is positioned completely off its base

39
Q

The spiral wrap

A

Is wrapped at a angle other than perpendicular to the length of the rod, which causes the hair to spiral along the length of the rod, like stripes on a candy cane

40
Q

Double rod wrap

A

A method of wrapping a permanent wave that is suitable for very long hair

41
Q

Straight perm

A

The basic perm

42
Q

What wrap radiates throughout the panels?

A

The basic wrap and bases radiate throughout the panels to follow the curvature of the head

43
Q

What does bricklay wrap prevent?

A

Used to prevent noticeable splits and to blend the flow of the hair

44
Q

The weave technique wrap

A

Uses zigzag patings to divide base area

45
Q

Partial perm

A

Perming only a section of a whole head

46
Q

In order to make a smooth transition from the rolled section of the head to an unrolled section what do you use?

A

Use a larger rod for the last rod next to the unrolled section when giving a partial perm

47
Q

What are many male clients looking for?

A

They are looking for adding texture, fullness, style, and low maintenance that only a perm can provide

48
Q

What does metallic salts leave?

A

Leaves a coating on the hair that may cause sever discoloration, or hair breakage

49
Q

What do you do when preforming a procedure for a preliminary test curl?

A

Wrap one rod in each different area of the head, including the top. The sife,, and the nape

Cosmetology (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions