Perming lesson 3

Perming lesson 3
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Slide 1: Tekstslide
HairdressingHigher Education (non-degree)

In deze les zitten 34 slides, met interactieve quizzen en tekstslides.

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Perming lesson 3

Slide 1 - Tekstslide

What can the main ingredient in neutraliser cause to coloured hair?
A
Kinder to the hair
B
Ammonia thioglycolate
C
Allergic reactions
D
Fade after perming

Slide 2 - Quizvraag

What is the main ingredient in acid perm?
A
Glycerol monothioglycolate
B
Sodium bromate
C
Hydrogen peroxide
D
Ammonia thioglycolate

Slide 3 - Quizvraag

Which type of perm is best for all hair types?
A
Acid perm
B
Ammonia thioglycolate
C
Neutraliser
D
Alkaline perm

Slide 4 - Quizvraag

What are the three stages of a perm?

Slide 5 - Open vraag

What happens during the molding stage

Slide 6 - Open vraag

Softening stage
  •  Opens the cuticle layer to allow the perm lotion to penetrate the cortex
  • Begins to soften the disulphide bonds
  • Adds hydrogen to the hair.

Slide 7 - Tekstslide

As the disulphide bonds are broken by the hydrogen, 
the cystine molecule is reduced into two cysteine 
molecules.​

Slide 8 - Tekstslide

Moulding stage
  • During the perm the hair is softened and starts to take on a new shape.
  • Moulds to the new shape of the perm rod
  • When chemically re-arranging, the hair is softened by cream to prepare the T4 hair for a perm. 

Slide 9 - Tekstslide

Fixing stage
  • Neutraliser is added to permanently fix the hair in its new shape.
  • Neutraliser adds oxygen which combines with the hydrogen to the cysteine molecules which creates H20.

Slide 10 - Tekstslide

Slide 11 - Tekstslide

  • The H20 molecules leave the cysteine molecules. 
  • This allows the recreation of one cysteine molecules. 
  • The hair is now in its newly formed permanently bonded shape.

Slide 12 - Tekstslide

What percentage of disulphide bonds are broken down during the development of a perm?
100%
60-80%
25-30%
10%

Slide 13 - Poll

How many bonds are broken down during the development stage?
  • Around 25-30%
  • Any more than this, the hair will become frizzy and the structure will be permanently damaged.

Slide 14 - Tekstslide

Today's objectives
  • State where acid and alkaline perm lotions sit on the pH scale
  • Be aware of what a chemical re-arranger is and when this might need to be used
  • Explain the effects that temperature has on the perming process
  • Be aware of the tools and equipment used during a perm

Slide 15 - Tekstslide

Acid perms
  • pH 6-7 - meaning they are less damaging on the hair
  • Require heat to activate them to open to cuticle

Slide 16 - Tekstslide

Alkaline perms
  • pH 8.5-9.5 some can be lower at 7.1
  • The lower pH the milder the lotion and less damaging to the hair
  • Give firmer curls and good for resistant hair

Slide 17 - Tekstslide

Slide 18 - Tekstslide

Neutraliser
  • pH 3-5
  • Can be applied in different ways.

Slide 19 - Tekstslide

Acid
Alkaline
Neutral
Hair's PH
Acid Perm lotion
Alkaline perm lotion

Slide 20 - Sleepvraag

What effect does temperature have on the perm process?

Slide 21 - Woordweb

Slide 22 - Tekstslide

Chemical re-arranger
timer
5:00

Slide 23 - Tekstslide

What is a chemical re-arranger?

Slide 24 - Woordweb

Chemical 
re-arranger 
  • Used to partially relax naturally curly hair.
  • Used on T4 hair before a perm
  • Cream based product which is combed into the hair to smooth it. 

Slide 25 - Tekstslide

Chemical 
re-arranger 
The re-arranger softens the hair by swelling the cuticle and allowing the penetration into the cortex. 
After the development, it is rinsed off and then hair would then be permed.

Slide 26 - Tekstslide

Where do you think this sits on the pH scale?

Slide 27 - Woordweb

It sits above 9 making it an alkaline product.

Slide 28 - Tekstslide

Applying a chemical re-arranger
Virgin head application:
When working on longer hair, the cream-based product should be applied to the mid-lengths and ends first. 


Why? 

Slide 29 - Tekstslide

Virgin head application:

This is because of the heat produced from the head and because the new growth of hair is freshly KERATINISED and is more sensitive to chemicals. 

What does keratinised mean?

Slide 30 - Tekstslide

Shorter hair application.
For shorter hair, the product can be applied from root to tips.


Hair that has been previously permed, only the new growth towards the roots should be treated with the chemical re-arranger. 

Slide 31 - Tekstslide

Tools and equipment...

Slide 32 - Tekstslide

What tools and equipment do we need?

Slide 33 - Woordweb

Tools and equipment

Slide 34 - Tekstslide