Questions and Answers
Hair color should not be applied to:
synthetic wigs
Coloring procedures used on human-hair wigs can include all of the following types EXCEPT:
Temporary colors are usually applied to which of the following hair conditions?
clean, towel-dried hair
Which colors coat only the surface of the hair shaft and cuticle, creating a physical change?
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Which of the following hair colors do NOT require a patch or predisposition test?
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Which of the following descriptions is NOT a characteristic of semi-permanent colors?
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Why are color molecules able to penetrate the cuticle layer of the hair when using semi-permanent products versus temporary colors?
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An obvious difference between two colors along a hairstrand is called a:
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Semi-permanent hair colors that contain an aniline derivative ingredient require a:
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Which color products are available, but their use is discouraged?
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The most common vegetable dye used to color the hair is:
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Hair color products that are mixed with a developer to create a chemical change are called:
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A type of hair color that uses a low-volume hydrogen peroxide that can only deposit color or add tone to the hair would be:
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Demi-permanent colors are NOT designed to:
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Long-lasting semi-permanent colors will generally last:
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Permanent hair colors are sometimes called:
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Permanent hair colors are mixed with:
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Which type of hair colors are capable of lightening natural pigment and depositing artificial pigment in one process?
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Permanent colors containing para-dyes would fall into which color category?
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High-lift tints are designed to achieve lighter color and are generally mixed with:
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What may be required if the desired amount of lift is not achieved using a single-process color?
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Which of the following statements is true of products that contain aniline derivatives?
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Cream hair colors are generally mixed with a cream developer and are applied with a:
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High-lift tints are designed to achieve lighter colors and are generally mixed with a double amount of:
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What is the pH level of hydrogen peroxide, a commonly used developer in hair coloring products?
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In order to become active, a developer needs to be mixed with ammonia or:
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A 20 volume hydrogen peroxide solution will generally lift the hair:
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A 30 volume hydrogen peroxide solution will generally lift the hair:
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Which type of mixing bowls may cause hydrogen peroxide to weaken?
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Fillers are generally chosen to:
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Study Notes
Hair Coloring Basics
- Synthetic wigs should not be colored with hair dyes.
- High-level (lighter) oxidative colors are not suitable for coloring human-hair wigs.
- Temporary colors are best applied to clean, towel-dried hair.
Temporary vs. Semi-Permanent Colors
- Temporary colors only coat the hair shaft's surface, creating a physical change without chemical alterations.
- No patch test is required for temporary colors, unlike oxidative, permanent, or demi-permanent colors.
- Semi-permanent colors deposit color, cannot lighten hair, and have a slightly alkaline pH; they do not leave a visible line of demarcation.
Color Molecule Characteristics
- Semi-permanent products enable smaller color molecules to penetrate the hair cuticle more effectively than temporary colors.
Color Definitions
- A line of demarcation indicates an obvious difference between two colors on a hair strand.
- Aniline derivative ingredients in semi-permanent hair colors necessitate a predisposition test.
Hair Color Types
- Metallic and compound dyes are discouraged despite being available.
- Henna is the most common vegetable dye used for hair coloring.
- Oxidative colors are products mixed with a developer to induce chemical changes.
Semi-Permanent and Demi-Permanent Colors
- Long-lasting semi-permanent colors deposit tone and color and last approximately 4 to 6 weeks.
- Demi-permanent colors can deposit color but cannot lift existing natural hair color.
Permanent Hair Colors
- Permanent hair colors, also known as oxidative tints with ammonia, are mixed with hydrogen peroxide.
- Permanent colors can lighten natural pigments while depositing artificial pigments.
- Para-dyes fall under the category of oxidative colors.
High-Lift Tints
- High-lift tints require mixing with 30 or 40 volume hydrogen peroxide to achieve lighter hair.
- If a single-process color fails to achieve desired lift, pre-lightening may be necessary.
Developer Characteristics
- Products with aniline derivatives require a skin patch test before application.
- Cream hair colors are mixed with a cream developer and applied using a bowl and brush.
- The pH level of hydrogen peroxide, a common developer, ranges between 2.5 and 4.5.
Hydrogen Peroxide Mixing
- A developer becomes active when mixed with ammonia or alkaline compounds.
- A 20 volume hydrogen peroxide solution lifts hair by two levels; a 30 volume solution lifts by three levels.
- Metal mixing bowls can weaken hydrogen peroxide, so alternative materials are recommended.
Use of Fillers
- Fillers are selected to replace missing primary colors in the hair.
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Description
Test your knowledge on hair coloring and lightening techniques with this engaging quiz. Explore important concepts related to hair color application, types of coloring procedures, and the specifics of using color on synthetic wigs. Perfect for cosmetology students or enthusiasts!
