CH 20 VOCAB #4

A two-step process whereby the hair undergoes a physical change

caused by wrapping the hair on perm rods; the hair then undergoes a

chemical change caused by the application of permanent waving solution and neutralizer

• Single Flat Wrap

• Side Bonds

• Polypeptide Chains

• Permanent Waving

Long chains of amino acids joined together by peptide bonds

• Polypeptide Chains

• Permanent Waving

• Side Bonds

• Single Flat Wrap

Disulfide, salt, and hydrogen bonds that cross-link polypeptide chains

together

• Salt Bonds

• Disulfide Bonds

• Hydrogen Bonds

• Side Bonds

Perm wrap that is similar to double flat wrap but uses only one end paper, placed over the top of the strand of hair being wrapped

• Piggyback Wrap

• Single Flat Wrap

• Double Rod Wrap

• Double Flat Wrap

Tool about 12 inches long with a uniform diameter along the entire length

• Polypeptide Chains

• Soft Bender Rods

• Straight Rods

• Permanent Waving

A thio based chemical service that reformats curly and wavy hair into

looser and larger curls and waves

• Straight Rods

• Soft Curl Permanent

• Permanent Waving

• Spiral Perm Wrap

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, similar to the stripes on a candy cane

• Side Bonds

• Single Flat Wrap

• Spiral Perm Wrap

• Soft Curl Permanent

Perm rods that are equal in diameter along their entire length or curling area

• Straight Rods

• Concave Rods

• Convex Rods

• Spiral Perm Wrap

The most common reducing agent in permanent wave solutions

• Thio-Free Waves

• Thio Relaxers

• Thioglycolic Acid

• Thio Neutralization

Stops the action of a permanent wave solution and rebuilds the hair in its new curly form

• Thio-Free Waves

• Thioglycolic Acid

• Thio Relaxers

• Thio Neutralization