Ch 15 Chemical Texture Services

The natural pH of the hair is between _____?

• 7.0 and 8.0

• 4.0 and 5.0

• 4.5 and 5.5

• 6.0 and 7.0

In permanent waving, the size of the curl is determined by the _____.

• size of the rod

• position of the rod

• length of the hair

• wrapping of the rod

The chemical texture service that loosens overly curly hair or changes tightly curly or coiled hair into loose curls or waves is?

• swelling compound

• alternate waving

• curl re-forming

• curl softening

The layer of the hair that provides the strength and elasticity to human hair is the _____.

• medulla

• arrector pili

• cortex

• disulfide bonds

Porous hair _____.

• could be damaged by a highly acidic permanent waving solution

• is difficult to penetrate

• could be damaged by a highly alkaline permanent waving solution

• should never be permed

In permanent waving, most of the processing takes place within the first _____.

• 20 to 30 minutes

• 45 to 60 minutes

• 10 to 20 minutes

• 5 to 10 minutes

The three separate components of acid waves are permanent waving solution, activator, and ______.

• stabilizer

• conditioner

• antagonizer

• neutralizer

Permanent wave solution should be rinsed from the hair for at least _____.

• 5 minutes

• 10 minutes

• 2 minutes

• 15 minutes

The process of rearranging the structure of curly hair into a straighter or smoother form is _____.

• neutralizing

• chemical hair relaxing

• chemical smoothing

• permanent waving

Thio relaxers usually have a pH above ____.

• 5

• 10

• 6

• 9