This perm wrap uses one end paper folded in half over the hair ends like an envelope.
What is bookend?
All perm wraps begin by sectioning the hair into this.
What are panels?
In permanent waving, panels of hair are divided into small subsections called this.
What are base sections?
This refers to the position of the rod in relation to its base section and is determined by the angle at which the hair is wrapped.
What is base placement?
Caution should be used with on-base rod placement to avoid additional this.
What is stress and tension on the hair?
This minimizes stress and tension on the hair.
What is half off-base?
This is the angle at which a permanent wave rod is positioned on the head.
What is base direction?
These are the two methods of wrapping the hair around a perm rod.
What are croquignole and spiral?
In the croquignole method of wrapping, the hair is wound from this in overlapping concentric layers.
What is ends to the scalp?
In this wrap, the hair is wrapped at an angle other than perpendicular to the length of the rod which causes the hair to spiral along the length of the rod.
What is spiral?
This is another name for the double-rod wrap technique.
What is piggyback?
This wrap, also known as straight set wrap, is a wrapping pattern in which all the rods with a panel move in the same direction and are positioned on equal-sized bases.
What is basic permanent wrap?
This wrap utilizes partings and bases throughout the panels to follow the curvature of the head.
What is curvature permanent wrap?
Base sections are offset from each other row by row to prevent noticeable splits and to blend the flow of the hair, in this wrapping pattern.
What is bricklay permanent wrap?
This is a very effective technique for blending between perm rods with opposite base directions using zigzag partings to divide base areas.
What is weave technique?
Chemical services should not be performed if the scalp analysis shows any signs of this.
What is abrasion?
Hair that has been treated with a hydroxide relaxer is unfit for this and will not hold a curl.
What is permanent waving?
These are often found in home haircoloring products, leave a coating on the hair that may cause uneven curls, severe discoloration, or hair breakage.
What are metallic salts?
This is the process of rearranging the basic structure of curly hair into straighter or smoother form.
What is chemical hair relaxing?
This is the measurement of the thickness or thinness of a liquid that affects how the fluid flows.
What is viscosity?
This combines the use of a thio relaxer with flat ironing.
What is Japanese Thermal Straighteners?
This is the active ingredient in all hydroxide relaxers.
What is hydrogen ion?
Hair that is treated with hydroxide relaxers must not be treated with this.
What is thio relaxers?
Hydroxide relaxers remove a sulfur atom from a disulfide bond, converting it into this.
What is a lanthionine bond?
This relaxer contains only one component and is used without mixing.
What is metal hydroxide relaxer?