Chapter 20 B Flashcards

1
Q

What process permanently rearranges the basic structure of curly hair into a straight or smoother form?

A

Chemical hair relaxing

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2
Q

The most common type of chemical hair relaxes are ammonium Thio, guanidine hydroxide and what else?

A

Sodium hydroxide

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3
Q

The measurement of the thickness or thinness do a liquid that affects how the fluid flows is known as what?

A

Viscosity

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4
Q

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?

A

Elasticity

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5
Q

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?

A

Lanthionization

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6
Q

Relaxers that are ionic compounds formed by metal combined with oxygen and hydrogen are known as

A

Metal hydroxide relaxers

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7
Q

Sodium hydroxide are commonly called

A

Lye relaxers

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8
Q

The acting n of a guanadine hydroxide or no lye relaxer causes the hair to

A

Soften and swell

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9
Q

These types of relaxers are intended for use on color-treated,damaged, or fine hair.

A

Low pH

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10
Q

Hydroxide relaxers are usually sold in what types of formulas

A

Base and no base

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11
Q

The scalp and skin are protected from possible burns when using a base hair relaxer by applying what?

A

Base cream

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12
Q

Application of the relaxer for a retouch begins in the most resistant areas, usually at the back of the head or where?

A

Under the occipital bone

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13
Q

If using a no base relaxer a protective cream is applied to where?

A

To the hairline and around the ears

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14
Q

General guidelines suggest that for fun color treated or damage here which strength of relaxer should be used?

A

Mild

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15
Q

General guidelines suggest that for course extremely curly and resisting hear what strength should be used

A

Strong or super

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16
Q

Inspecting the action of the relax of us moving in passing the strand to the scalp is called

A

Periodic strand testing

17
Q

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

A

Continue processing

18
Q

When applying hydroxide relaxer on virgin hair the process and cream is applied last to where

A

Scalp area and hair ends

19
Q

The product is applied where first when applying a sodium hydroxide retouch

A

New growth only

20
Q

What product is used to restore the hair to a normal acidic pH

A

Normalizing lotion

21
Q

The best type of shampoo to use after the chemical relaxer is

A

Neutralizing shampoo

22
Q

I’m here relaxing treatment should be avoided when examination shows presence of what

A

Scalp abrasions

23
Q

Of the general types of hair relaxers which one does not require pre-shampooing

A

Sodium hydroxide

24
Q

One safety precaution for here relaxing as to avoid went to the scalp with a comb or fingernails

A

Scratching

25
Q

What is one saved up a caution that must be followed with all chemical here relaxing services

A

Wearing protective gloves

26
Q

After the hair has been processed with a relaxer and before the shampoo the hair should be thoroughly what

A

Rinsed

27
Q

When hair has sufficiently been straightened the hair is rinsed the rapidly and thoroughly with what temperature of the water

A

Warm

28
Q

Keratin straightening treatments work by fixing the Charitan in place and what type of manner

A

Semi permanent

29
Q

This is the type base chemical service that reforms curly and wavy hair into looser and larger curls and waves

A

Soft curl permanent

30
Q

When using the comb method of application how is the relaxing cream applied

A

With the back of the comb

31
Q

After saturating the rods with neutralizer and a softball per minute and processing according to manufactures directions the next step is to do what

A

Rinse with the rods still in the hair

32
Q

When processing is complete for softball permanent what is done after rinsing the hair thoroughly with warm water

A

Conditioner is applied