Friday, August 22, 2008

Tips for Hair Curling and Hair Straightening




People have been trying to turn straight hair into waves and curls for thousands of years. A permanent wave is a process that creates a curl in the hair shaft by altering its chemical structure. Perming hair is a good way to add body and curls to straight hair. It also requires a bit of extra care. Whether or not a perm will take depends on:




• the type of the hair
• its past history of chemical treatments and
• the skill of the stylist



You should never perm your own hair as this is a delicate job. If you do you run the risk of losing hair or damaging your hair shaft.
In expert hands, perming can create wonderful effects. Let the expert do hair perming proces.
There are different types of perm:




Acid perm
Create highly conditioned, flexible curls. Acid perms have a mildly acidic action that minimizes the risk of hair damage.
They are ideally suited to hair that is fine, sensitive, fragile, damaged, or tinted.



Alkaline perm
Alkaline perms give strong, firm curl results on normal and resistant hair.



Exothermic perm
Exothermic perms give bouncy, resilient curls.
Exothermic refers to the heat that is produced by the chemical reaction that occurs when the lotion is mixed.




Hair perm techniques



Body perms are very soft, loose perms. The result is added volume with a hint of wave rather than curls.
Root perms add lift and volume to the root area only.
Pain curl perms give soft, natural waves and curls.
Stack perms give curl and volume to one-length hair cuts.
Spiral perms create romantic spiral curls. The hair is rolled vertically rather than horizontally.
Spot perms give support only on the area to which they are applied.
Weave perms involve perming certain sections of hair and leaving the rest straight.






How to Perm Hair



1. The hair is washed by clarifying shampoo;
2. The hair is tightly wound around a curler or a rod;
3. The perm lotion is applied to the hair;
4. After a while the perm lotion is thoroughly rinsed;
5. A neutralising lotion is applied;
6. A failure to rinse and neutralise properly can lead to many problems.
7. The hair should not be washed for two to three days.
8. Cut your hair after you perm.
9. If your perm does not take you should wait a while before getting a new one.
10. Because permed hair can be dry, avoid over-use of irons, hot combs, and




How do hair perms work?

Perming is a chemical process of changing the shape of hair, so that the new style is retained through several washes. Perming lotions contain chemicals which cause some of the bonds within the protein fibres of the hair to break. The lotions remain on the hair for the necessary development time during which the desired number of bonds (25-30%) are broken. A new pattern is then imPosed on the hair by winding it on rollers. The lotion is then rinsed off the hair and a neutraliser is applied to enable the disrupted bonds to reform with a new pattern, giving the hair a new shape.
Perming can be achieved either by a cold process or by a hot process. In cold waving, thioglycollates are used to break the bonds, while in hot waving, alkalis are used. 'Soft perms' are also available for home use - they act in the same way but contain bisulphites which act more slowly and to a lesser extent-the result is a softer perm which does not last very long. Normally the professionally given perms should last until the treated hair grows out or is cut off.

What can go wrong with a perm?

A number of factors combine to make the perm successful: the locorrect strength of the lotion, the curler size, the degree of tension with which the hair is wound around the curlers, and the development time. Things can go wrong with any of these and spoil the perm.
You might not be satisfied with the style of the perm. With small curlers and too much tension on the hair, the hair looks frizzy. Similarly, in case of too long a development time the curl becomes too tight. With a short development time and larger curlers the perm is loose.
Damage to the hair is another problem with perming; this occurs most often in the hair which is already damaged by dyeing. Even in normal hair, too prolonged an application or too strong a lotion may cause damage, because of the weakening of the bonds in the hair protein. The cuticuiar scales are also damaged during perming and may even be lost - this leaves areas of hair naked making it look lifeless. If sufficient damage has been caused to the hair, it may break, either immediately or within a few days of perming, as you comb or brush your hair.
In rare cases skin irritation can occur-this is the result of careless application of the lotion or if the lotion is allowed to remain for too long in contact with the scalp. In view of the problems your skin and hair are likely to face, it is better to get your hair permed from an experienced beautician.

How often can you perm your hair?

This depends on the condition of your hair. Some damage does take place during perming and this is more so if the hair has been dyed earlier and it is therefore better to avoid re-perming your hair earlier than 4-5 months.

Can curly hair be straightened?

Yes, hair can be straightened just as it can be curled. This is done either by using chemicals or heat. The hair straightening is brought about by breakage of the bonds and formation of new 'ones and this too makes the hair weak. Of the chemical meth. ods, one technique uses a strong alkali and the other involves the use of a reducing agent. The former tends to have a stronger effect.

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