Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Chemical Services

CH. 20 Chemical Texture Services

Term
The chemical texture service that loosens overly curly hair or changes tightly curly or coiled hair into loose curls or waves is curl re-forming.
The layer of the hair that provides the strength and elasticity of human hair is the cortex.
The natural pH of hair is between 4.5 and 5.0
In permanent waving, the size of the curl is determined by the size of the rod.
The technique of wrapping the hair at an angle of 90 degrees or perpendicular to its base section is hair off-base placement.
The two basic types of wrapping the hair around a perm rod are the spiral and croquignole perm technique.
A reduction reaction involves either the addition of hydrogen or the removal of oxygen.
Most cold waves have a pH between 9.0 and 9.6
The three separate components of acid waves are permanent waving solution, activator, and neutralizer.
An endothermic wave is activated by an outside heat source.
Permanent wave solution should be rinsed from the hair for at least 5 minutes,
The process of rearranging the structure of curly hair into a straighter or smoother form is chemical hair relaxing.
Thio relaxers usually have a pH above 10
Hydroxide ions left in the hair after a relaxer can be neutralized using an acid-balanced shampoo.
Metal hydroxide relaxers are a type of relaxer that contains only one component and is used exactly as it is packaged with no mixing necessary.
Lithium hydroxide and potassium hydroxide relaxers are often advertised and sold as no mix - no lye relaxers.
Salt bonds are a type of bonds that are relatively weak physical side bonds that are the result of an attraction between negative and positive electrical charges.
Loop rods are also known as a circle rod.
For on-base placement, the hair is wrapped at 45 degrees beyond perpendicular to its base section, and the rod is positioned on its base.
Acid-balanced waves are permeant waves that process at room temperature.
Chemical solutions raise the pH of the hair to an alkaline state.
You should preform an elasticity test before perming the hair.
Porous hair could be damaged by a highly alkaline permanent waving solution.
GMTG, the primary reducing agent in most acid waves, has a low pH.
True acid waves have a pH between 4.5 and 7.0
Ammonia-free waves have very little odor.
In permanent waving, most of the processing takes place within the first 5 to 10 minutes.
One safety precaution of permanent waving is to examine the scalp before the perm service.
With extremely curly hair, the twists are the thinnest and weakest sections of the hair strands.
Relaxers are extremely alkaline and can literally melt or dissolve hair if used incorrectly.
If the client's hair has been treated with a hydroxide relaxer, it means the hair will not hold a curl when applying a thio relaxer or thio permanent.
A double flat wrap is a perm wrap in which one end paper is placed under and another is placed over the strand of hair being wrapped.
Soft bender rods are usually about 12 inches (30.5 centimeters) long with a uniform diameter along the entire length of the rod.
Thioglycolic acid is a common reducing agent.
The medulla is the innermost layer of the hair.
The partings and bases radiate throughout the panels to follow the curvature of the head in a curvature permanent wrap.
The chemical bonds that jion amino acids together are called peptide bonds.
A spiral perm wrap is a type of perm wrap in which the hair is wrapped at an angle other than perpendicular to the length of the rode.
The Japanese thermal straightening is a method of hair straightening that combines the use of a thio relaxer with a flat iron.
Base relaxers require the application of a protective base cream to the entire scalp prior to the application of the relaxer.
The middle layer of the hair is the cortex.
Base direction refers to the angle at which the rod is positioned on the head: horizontally, vertically, or diagonally.
A bookend wrap is a type of wrap that uses one end paper folded in half over the hair ends like an envelope.
A basic permanent wrap is a wrapping pattern in which all the rods within a panel move in the same direction and are positioned on equal-sized basses.
Sodium hydroxide relaxers are usually classified as a lye-based relaxer.
Straight rods are equal in diameter along their entire length or curling area.
Viscosity refers to the thickness or thinness of a liquid.
The cuticle is the tough exterior layer of the hair.
Base placement refers to the position of the rod in relation to its base section.
A piggyback wrap is a type of wrap in which the hair is wrapped on one rod from the scalp to midway down the hair shaft, and another rod is used to wrap the remaining hair strand in the same direction.
Thio neutralization stops the action of the waving solution and rebuilds the hair into new curly form.
Long chains of amino acids joined together by peptide bonds are known as polypeptide chains.
The process by which hydroxide relaxers permanently straighten hair is called lanthionization
Hydrogen bonds can be broken by either water or heat.
The reducing agent used in permanent waving solutions is commonly referred to as thio.
Manufacturers add an alkalizing agent to waving solutions because the acid in the solutions does not swell the hair or penetrate into the cortex.
A pH of 7.0 is 100 times more alkaline than the pH of hair.
Most of the acid waves found in today's salons have a pH between 7.9 and 8.2
Concentrator is not considered a main component of an exothermic wave.
An endothermic chemical reaction is one that absorbs heat from its surroundings.
A true acid wave perm is recommended for extremely porous hair.
Hydrogen peroxide is the most common neutralizer.
When rinsing the hair after the recommended processing time has elapsed, it is recommended that you smell the hair to determine if it smells like perming solution.
Japanese thermal straightening is sometimes called thermal reconditioning.
Mild-strength relaxers are formulated for fine, color-treated, or damaged hair.
Created by: Kiwis
Popular Human Services sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards