How Do Perms Work?

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Across
  1. 3. Relatively weak physical side bonds that are the result of an attraction between opposite electrical charges, easily broken by changes in pH, as in permanent waving, and re-form when the pH returns to normal
  2. 4. Long chains of amino acids joined together by peptide bonds
  3. 5. Perm wrap in which on end paper is placed under, and one is placed over, the strand of hair being wrapped
  4. 8. Subsections of panels into which hair is divided for perm wrapping; one rod is normally placed on each base section
  5. 10. Angle at which the rod is positioned on the head; also, the directional pattern in which the hair is wrapped
  6. 11. Chemical side bonds that are formed when the sulfur atoms in two adjacent protein chains are joined together.
  7. 13. Absorbent papers used to control the ends od the hair when wrapping and winding hair on perm rods
  8. 14. Perm wrap similar to actual technique of bricklaying; base sections are offset from each other row by row
  9. 18. Perm rods that have smaller diameter in the center that increases to a larger diameter on the ends
  10. 19. Chemical bonds that join amino acids together to form polypeptide chains
  11. 20. The position of the rod in relation to its base section, and is determined by the angle at which the hair is wrapped. Rods can be wrapped on base, half off base, or off base.
  12. 21. Perm wrap thatis similar to double flat wrap but uses only on end paper, placed over the top of the strand of hair being wrapped
Down
  1. 1. Active ingredient or reducing agent in alkaline permanents
  2. 2. Oily cream used to protect the skin and scalp during hair relaxing
  3. 6. Colorless liquid with a strong unpleasant odor; provides the hydrogen that causes the reduction reaction in permanent waving solutions
  4. 7. Perm wrap in which one end paper is folded in half over the hair ends like an envelope
  5. 9. Perms in which the hair strands are wrapped at an angle perpendicular to the perm rod, in overlapping concentric layers
  6. 12. Weak physical side bonds that are the result of an attraction between opposite electrical charges; easily broken by water, as in wet setting, or heat, as in thermal styling, and re-form as the hair dries or cools
  7. 15. Perm wrap in which partings and bases radiate throughout the panels to follow the curvature of the head
  8. 16. Perm rods that are equal in diameter along their entire length or curling area
  9. 17. Position of the rod in relation to its base section, determined by the angle at which the hair is wrapped