Flashcards in chapter 21 Deck (66):
Clients who have their hair colored usually visit the salon every how many weeks?
What is a professional, industry coined term referring to artificial hair coloring products and services?
The what of the client's hair and the desired results determine which haircolor to use.
The cortex, or middle layer of each hair,gives the hair the majority of its strength and elasticity, and contributes about how much percent to the overall strength of the hair?
The natural coloring pigment food in the cortex layer of the hair is what
Melanin is made from what?
Hair texture is determined by the diameter of individual hair what?
Fine hair takes color faster and can look darker because the melanin granules are grouped how?
the hair type with a large diameter that can take longer to process hair color is what?
coarse textured hair
The ability of the hair to absorb moisture is known as what?
When the cuticle is tight and the hair is resistant, it is difficult for moisture or chemicals to penetrate. Wha term describes this condition?
when the cuticle is slightly raised and the hair is normal and processes in an average amount of time, the hair would be said to have what?
when the cuticle is lifted and the hair is overly porous and takes color quickly, the hair would be said to have what?
to test for porosity, take several strands from four different areas of the head: the front hairline, the temple, the crown and the what?
what type of melanin gives black and brown color to the hair?
they system used by colorist to analyze the lightness or darkness of a hair color is what?
the level system
the darkest hair colors in the level system are identified as being a level what?, while the lightest hair color in the level system are what?
what is one of the most valuable tools for identifying the natural level in the hair?
what is described as a property of objects that depends on the light they reflect and is perceived (by the human eye) as red, yellow , blue, or other shades
the system used for understanding color relationships is the what?
laws of color
fundamental or pure colors that cannot be achieved from a mixture are known as what?
the primary color that brings depth or darkness to any color is what?
when all three primary colors are present in equal proportions the resulting color is what?
a color obtained by mixing equal parts of two primary colors is a what?
a color achieved by mixing equal parts of a secondary color and its neighboring primary color on the color wheel is a what?
primary and secondary colors that are positioned opposite each on the color wheel are what?
tones can be described as cool warm or what?
what tones absorb more light , therefore they look deeper than their actual level?
what refers to the strength of the color?
each color is identified by a number and a letter, with the number indicating the level and the letter indicating the what?
neutral base colors are often used to what?
cover gray hair
non oxidative hair color is classified as temporary and what (traditional )
oxidative haircolor is classified as semipermanent (deposit only) and what (lift and deposit).
all hair coloring products require a patch test, with the exception of what
as part of their composition, all permanent hair coloring products and lighteners contain both a developer and a (n) what?
coloring products that have a coating action on the hair and are removed by shampooing are what?
demipermanent colors are also known as what
no lift, deposit- only colors
what coloring products are regarded as best for covering gray hair?
dye precursors that combine with hydrogen peroxide to form larger, permanent dye molecules are called what?
metallic hair colors are also known as what?
gradual colors (progressive)
what is the most commonly used developer and an oxidizing agent that , when mixed with an oxidation hair color, supplies the necessary oxygen gas to develop the color molecules and create a change in natural hair color.
the concentration and strength of hydrogen peroxide is measured in terms of what?
the standard value of hydrogen peroxide used to achieve most results with permanent hair color is what?
chemical compounds that lighten hair by dispersing, dissolving and decolorizing the natural pigment are what
what is the process by which oxygen is released within the cortex of the hair shaft?
the process in which the hair is pre lightened and the toned is known as what?
double process application
during the process of decolorizing , a natural hair can go through as many as what stages?
what hair colors, also known as vegetable hair colors, such as henna, and colors obtained from the leaves or bark of plants?
decolorizing the hairs natural pigment allows the colorist to create the exact degree of what?
what hair coloring product is used primarily on pre lightened hair to achieve pale and delicate colors?
clients with hair in questionable condition who request chemical services should be requires to sign a what?
when applying color using the brush and bowl method, the mixing bowl should be what
the us federal food, drug and cosmetic act prescribes that the predisposition test be given ?
24 to 48 hours prior to application
what process lightens hair and deposits color in one application
single process haircoloring
a what application refers to the first time hair is colored
what is a non ammonia color that adds shine and tone to the hair?
you should NEVER apply hair color to a client if the scalp has any obvious signs of what?
overlapping hair color on previously tinted hair can cause breakage and create a visible line of what?
what is the first step of double process hair coloring?
lighteners that have thicker consistency and give more control during scalp application are known as what?
powdered per sulfate salts added to hair color to increase its lightening ability are what?
the part of the hair shaft between the scalp and the hair that has been previously colored is known as what?
the coloring technique that involves coloring some strands of hair lighter than the natural color is known as what?
the technique of coloring strands of hair darker than the natural color is what?
in the weaving foil technique , selected strands are picked up from a narrow section of hair with a what motion?