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Elements and Performance Criteria

  1. Consult with client.
  2. Determine contraindications to corrective colour treatment.
  3. Select colour correction products and prepare for service.
  4. Apply colour correction products.
  5. Review service and provide home care advice.

Performance Evidence

Evidence of the ability to complete tasks outlined in elements and performance criteria of this unit in the context of the job role, and:

consult with at least six clients, each with different colour correction needs, and complete colour correction treatments which consistently achieve target colour and tone results to client satisfaction using these colour correction products cumulatively across the six services provided:

colour fillers

permanent colour

porosity equalisers

semi-permanent colour

temporary colour

for each client, complete a pre-treatment hair analysis covering the following characteristics to recommend appropriate colouring treatments:

natural hair type, texture, porosity, density and elasticity

natural base colour

artificial base colour

hair colour tone

percentage of white hair

presence of lightening agents or artificial hair colour treatments on hair

existing chemical services, including metallic based products

skin tone

length of hair

scalp condition

record the following details of the colour service in the history for each client serviced:

pre-service hair analysis and colour problem

contraindications

reaction to skin tests or products

colour correction products selected

brand and colour selection

application techniques, processing methods and times

colour and hair condition outcome

recommended home care products.


Knowledge Evidence

Demonstrated knowledge required to complete the tasks outlined in elements and performance criteria of this unit:

colour wheel and its use in colour selection to achieve warm and cool tones

key characteristics and interrelationships of the elements and principles of hair design and their use in achieving hair colouring effects;

elements of hair design:

line

shape

direction

size

texture

colour

principles of hair design:

balance

gradation

repetition

contrast

harmony

dominance

unity

hair biology, at an elementary level of understanding:

main functions and role of hair

main factors contributing to hair colour

structure and cellular features of hair and hair follicles

process of hair growth and the hair growth cycle

characteristics of normal and damaged hair

relationship between hair porosity, texture, condition and the success of colour treatments

basic concepts of cosmetic chemistry, as they apply to effective and safe use of colour correction products:

bonds

molecules

chemical compounds

chemical change

neutralisation

acids and bases

pH

at an elementary level of understanding, the chemical and physical effects on hair structure, texture and colour of:

colour fillers

hydrogen peroxide

porosity equalisers

temporary colour

semi-permanent colour

permanent colour

high lift tints

sunlight

heated hairdressing equipment

contraindications to using colour correction products:

damaging effects of previous chemical hair treatments

hair porosity

sunlight or heat affected hair

client allergic reactions

organisation’s colour correction products range:

colour chart system

formulation of colour and high lift tints

product purpose

action on the hair

mixing and application instructions

processing and development times

role and basic content of Safety Data Sheets (SDS) or plain English workplace documents or diagrams that interpret SDS content

reasons for selecting different application methods

basic aspects of local government, state or territory health regulations applicable to providing hair colouring services

industry practices and organisational procedures for:

client comfort and safety with particular emphasis on:

using gown and towels to protect client clothes

application of barrier creams to face and neckline

avoiding product contact with eyes

monitoring client scalp comfort and condition

work health and safety for applying hair colour correction products, with particular emphasis on:

avoiding product contact with operator eyes and skin

avoiding inhalation of fumes during product mixing

using correct posture and adjusting height of client chair to avoid fatigue and injury

minimising wastage of colour correction products

waste disposal with particular emphasis on environmentally sound disposal methods for hazardous and other hairdressing waste.