What is the reduction reaction due to in permanent waving?
The most common reducing agent used in permanent waving is thioglycolic acid. This compound provides the hydrogen which is the catalyst in the reduction phase of the redox process. The redox process occurs during permanent waving in two phases.
When performing a permanent wave you should?
Chemical Texture/ haircoloring
| Question | Answer |
|---|---|
| When performing a permanent wave, you should: | immediately replace towels that have become wet with solution |
| The side bonds of the _____ must be broken in order to change the natural wave pattern of the hair. | cortex |
What is another name for the double rod wrap technique?
piggyback wrap
Which type of rod is also known as a circle Rod?
loop rod
Which rod is also called a circle Rod?
Loop Rod. Also known as circle rod; tool that is usually about 12 inches long with a uniform diameter along the entire length of the rod.
What are the different types of perm rods?
Perm Rods
- Red Rods: The smallest rods that produce the tightest perm. These are used in hair that less than three inches.
- Blue Rods: Slightly larger than the red rods, these give a tight, controlled curl to hair under four inches.
- Pink Rods: Pink perm rods create curl for hair about four inches in length.
What is a true acid wave?
Term. true acid waves. Definition. Have a pH between 4.5 and 7.0, require heat to process (endothermic), process more slowly than alkaline waves, and do not usually produce as a firm a curl as alkaline waves.
What are concave rods?
Term. concave rods. Definition. Perm rods that have a smaller diameter in the center that increases to a larger diameter on the ends.
What perm rods are equal in diameter?
Cards
| Term What are the two step of permanent process? | Definition Phsycal Change & Chemical Change |
|---|---|
| Term Types of Rods: _________ are equal in diameter along their entire length. | Definition Straight rods |
| Term Types of Rods: Straight rods are ________ in diameter along their entire length. | Definition Equal |
What are straight rods?
Straight rods are a type of perm rod that has the same thickness from one end to the other to create an even curl pattern. A body wave is a type of perm that gives hair, particularly straight hair, deep waves that add fullness and body to the hair which is useful for a variety of different styles.
What is a Bricklay perm wrap?
A: In a brick-lay perm wrap, the rods are placed in the hair much the same way as bricks are laid in construction. The sections are offset from the rods in the row above, using shorter rods on the ends of rows where needed. Most often, rod placement is horizontal, but can be whatever base direction you wish.
What does a piggyback perm look like?
The piggyback perm wrap uses two rods per segment of hair. Approximately half of the hair length (between scalp and mid-point of the length) is wrapped spiral fashion around one rod using an overlapping technique, then the ends of the segment are wrapped in croquignole fashion as with a traditional perm wrap.
Which way do you roll a perm rod?
The hair at the back of the head is rolled onto the roller the exact same way as the hair to the sides. Place the rod between the hair and the person’s body and curl the tips of the hair around the rod to give you some leverage. Roll the rod downward (if facing the rod, you would be rolling the rod towardsyourself).
How do I know what size perm rod to get?
Choose pink or gray perm rods if your hair is between three inches and five inches long. Pink rods are the smaller mid-size perm rods, suitable for making tight curls in medium-length hair or looser curls in short hair. Gray rods are slightly larger than pink rods, delivering similar results for slightly longer hair.
How many perm rods do you need for a full head?
If you have long hair, you should need about 32 medium perm rods. If you have short or medium length hair, you’ll need between 24 and 36 medium perm rods.
Are perm rods supposed to be tight?
When wrapping a perm, the slices should be a little narrower than the rods being used, and approximately as thick as the ends of the rod (without the tethering plug). If there’s too little hair, the tendency is to not wind the hair with as much tension, resulting in loose rods.
Why do you always comb from the scalp to the ends when wrapping a perm rod?
Comb hair to remove tangles. The section of hair should occupy no more room on the scalp than the width of the rod you’re using, unless the hair is very long and will be spiral wrapped. Comb the hair out to the ends and place an end paper around the ends of the hair to prevent them from folding.
How long does a perm rod set last?
two weeks
What is the difference between a spiral perm and a regular perm?
Basic and spiral curls: The biggest difference between these two perms are the curls themselves. Basic perms have uniform curls throughout the entire coif—they’re the same size and shape. Spiral perms have different sizes and lengths, making for a more natural and “loose” curl appearance.
Can I use foam rollers for a perm?
The larger the rods the looser the wave. I’ve personally never tried foam rollers. You could open the top of the perm solution. If it doesn’t hurt the foam, then you can use them.
Can I put rollers in wet hair?
A wet set is a method of curling your hair by applying rollers when your hair is wet and allowing the hair to dry with the rollers in it. Curling your hair using a wet set rather than heat causes less damage to your hair, lasts longer, and costs less.