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Question | Answer |
---|---|
The first machine capable of producing permanent curl was invented in | 1905 |
The inventor of the first permanent wave machine was | Charles Nessler |
1938 Arnold f. willatt inventened the first | cold wave |
Heat waves that are self-timed and self-heated are called | exothermic |
Acid waves that require the application of heat are | endothermic |
What type of wave uses thioglycolic acid or its derivatives with ammonia and processes the hair without heat | Cold |
The overlap method of wrapping hair around a perm tool is also called | croquignole |
To achieve the desired curl formation hair should wrap around the rod at least how many times | 2 1/2 |
What type of rods produce a large curl pattern on either side and a smaller curl in the center | concave |
What type of rods produce small firm curls | small diameter rods |
the most common end paper technique used to avoid bunching at the ends is the | double paper |
the base is defined as the area between two | partings |
The most common base control for perming is a/an | half off base |
in perming a one base size is | equal to the diameter of perm rod |
a larger base size will have which of the following effects on the curl | reduce strength |
to achieve maximum volume which tool position should be used | on base |
which tool position is used in perimeter areas where closeness is desired | underdirected |
the tool positioned used when only a minimum degree of volume is desired is the | off base |
What element do most acid waves use along with tension and waving lotion to process hair | heat |
what structure must be permanently broken to change the hair from a straight to a curly state | disulfide bonds |
what procedure removes the excess waving lotion | rinsing |
alkaline waves carry a ph of | 8.0 - 9.5 |
Neutralizing is also known as | rebonding |
what procedure reduces the swelling of the hair and hardens the bonds into the new size and shape during a perm process | applying neutralizer |
hydrogen peroxide sodium perborate or sodium bromate are commonly used in | neutralizers |
which waving solution is not recommended for porous or damaged hair | alkaline |
low ph alkaline waves have a ph of | 8 |
acid waves have a ph of | 6.9 - 7.2 |
hair must be wrapped without tension when using | alkaline waves |
wrapping with even tension when using an acid wave produces the effect of | increases processing time |
it is essential to completely rinse the perm solution before applying | neutralizer |
leaving the neutralizer on longer than recommended can | cause damage |
which waving solution has the shortest processing time | alkaline |
acid perms create | soft natural curls |
what term refers to the hairs ability to absorb moisture liquids and chemicals | porosity |
The hairs ability to stretch and return to its original shape is called | elasticity |
thio-free perms use what as a reducing agent | cystemine hydrocholoride |
which perm wrap is considered the most basic perm wrap pattern | rectangle |
rods to large for the desired curl can cause | a limp curl |
too much hair on a rod can cause | an uneven curl pattern |
the physical and chemical process of making straight hair curly | permanent waving |
use heat tension control and a weaving lotion to process hair | acid waves |
Created by: lisasmith86
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