Study

Milady ch 20 chemical texture services

  •   0%
  •  0     0     0

      Back   Restart
  • Perm activated by an outside source.
    Endothermic
  • Keratin proteins are made of long what?
    Chains of amino acids linked together end to end like beads
  • If hair is under processed, further processing will make the hair
    Curlier
  • Explain neutralization.
    Thio neutralizer zation rebuilds the disulfide bonds by removing the hydrogen that was added by the waving solution.
  • Male clients want to add what to their hair
    Texture
  • Polypeptide chains are peptide bonds formed by amino acids that join what?
    Chemical bonds
  • Type of wrap that causes the hair to look like candy canes?
    Spiral
  • To use an end wrap on top of the hair and on bottom of the hair is called what?
    Double flat wrap
  • Acid balanced perms give what effect?
    Process more quickly, and produce firmer curls.
  • How do we determine processing time of a perm?
    Strength of solution
  • Polypeptide chains are long chains of what?
    Amino acids joined together by peptide bonds
  • Perm that creates a chemical reaction to create heat.
    Exothermic
  • Glycerol monothioglycolate is the active ingredient in what type of waving lotion?
    True acid and acid balancing
  • What type of curl do straight rods create?
    A uniform curl the entire width of the curl
  • A disulfide bond forms when a sulfur when two adjacent chains do what?
    Join together
  • What do we use end wraps for?
    To control the ends
  • What type of hair takes longer to process?
    Resistant or course hair
  • What is the basic perm wrap called?
    Straight set
  • What wrap do we use to prevent splits?
    Bricklay
  • A properly processed permanent wave should break and rebuild approximately what % of the hairs disulfide bonds?
    50
  • When does most of the processing take place when the solution penetrates the hair, within the first?
    5-10 min
  • Describe a bookend end wrap.
    When an end paper is folded in half over the hair.
  • What type of perm solution works by softening and expanding the hair?
    Alkaline perm solution
  • Describe a concave perm rod.
    Small diameter in the center area and gradually increases to their larger diameter on the ends.
  • Course hair with a strong resistant cuticle layer needs the additional swelling and penetration that come from what type of perm?
    Highly alkaline perm
  • We can use a liquid protein conditioner under the dryer for 5 minutes if it is what?
    Acidic
  • What type of hair is more fragile?
    Fine
  • Sodium hydroxide is the active ingredient in what type of perm?
    Alkaline perm
  • We double rod wrap for what type of hair?
    Very long hair
  • Metallic salts coat the hair making it so the curl will be what?
    Uneven,severe discoloration or breakage
  • What happens to the hair if not properly rinsed ?
    It can lighten because of the hydrogen peroxide in the neutralizer reacts to the waving lotion.
  • What type of hair is easily penetrated by the waving lotion?
    Porous
  • If to many disulfide bonds are broken in the perming process, what happens to the hair?
    The hair will be to weak to hold a firm curl.
  • Neutralizer rebuilds disulfide bonds broken by what?
    Waving lotion
  • Waving lotion breaks the desulfide bonds through this.
    Chemical reaction called reduction
  • We use a weave technique to do what?
    Divide base area
  • We need to rinse the perm solution for at least
    5 minutes
  • A curvature wrap follows what?
    The curvature of the head.
  • When we only perm a small section of the hair it is called.
    Partial perm
    • Your experience on this site will be improved by allowing cookies.