English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

do you think (know) if the chemicals in a semi-permanent hair colour will affect the flammability of the hair

2007-02-01 19:31:56 · 7 answers · asked by juicinator 1 in Science & Mathematics Chemistry

7 answers

Anything you do to change your hair, including changing the color will effect the flammability of the hair, either making it more or less susceptible.

A lot of It depends on the type of dye used to change the color of the hair.

I don't think it changes too much either way to worry about. There are other factors to consider, i.e. humidity, the last time the hair was cleaned, hair spray, shampoo, conditioner, etc.
Any of those could negate the effects of hair dye.

Hair dye products may be divided into three categories, i.e., permanent, semi-permanent and temporary hair colors. Permanent hair colors are the most popular hair dye products. They may be further divided into oxidation hair dyes and progressive hair dyes. Oxidation hair dye products consist of a solution of dye intermediates, e.g., p-phenyl- enediamine (which form hair dyes on chemical reaction), and preformed dyes, e.g., 2-nitro-p-phenylenediamine (which already are dyes and are added to achieve the intended shades), in an aqueous, ammoniacal vehicle containing soap, detergents and conditioning agents, and a solution of hydrogen peroxide, usually 6%, in water or cream lotion. The ammoniacal dye solution and the hydrogen peroxide solution, often called the developer, are mixed shortly before application to the hair. The applied mixture causes the hair to swell, and the dye intermediates (and preformed dyes) penetrate the hair shaft to some extent before the chemical reaction forming the hair dye is complete.

Progressive hair dye products contain lead acetate as the active ingredient. Lead acetate is approved as a color additive for coloring hair on the scalp at concentrations not exceeding 0.6% w/v, calculated as metallic lead (21 CFR 73.2396). Bismuth citrate, the other approved color additive (21 CFR 73.2110), is used to a much lesser extent. Progressive hair dyes change the color of hair gradually from light straw color to almost black by reacting with the sulfur of hair keratin as well as oxidation on the hair surface.

Semi-permanent and temporary hair coloring products are solutions (on rare occasions dry powders) of various coal-tar dyes, i.e., synthetic organic dyes, which deposit and adhere to the hair shaft to a greater or lesser extent. Temporary hair colors must be re-applied after each shampooing. The vehicle may consist of water, organic solvents, gums, surfactants and conditioning agents. The coal-tar dyes are either approved, listed and certified color additives or dyes for which approval and listing has not been sought. The dyes may not be non-permitted metallic salts or vegetable substances.

If a hair dye product contains a non-approved coal-tar color (but not a non-approved metallic or vegetable dye), and even if this coal-tar color is known to cause adverse reactions under conditions of use, the product may not be considered adulterated if the label bears the caution statement provided in Section 601(a) of the FD&C Act and offers adequate directions for preliminary patch testing by consumers for skin sensitivity. The caution statement reads as follows:

Caution - This product contains ingredients which may cause skin irritation on certain individuals and a preliminary test according to accompanying directions should first be made. This product must not be used for dyeing the eyelashes or eyebrows; to do so may cause blindness.

If the label of a coal-tar color containing hair dye product does not bear the caution statement of Section 601(a) and the patch testing directions, it may be subject to regulatory action if it is determined to be harmful under customary conditions of use.

Several coal-tar hair dye ingredients have been found to cause cancer in laboratory animals, as for example, 4-methoxy-m-phenylenediamine (4-MMPD, 2,4-diaminoanisole). Additionally, studies in humans and monkeys have demonstrated that 4-MMPD readily penetrates the skin. The Agency considered the risk associated with the use of hair dyes containing 4-MMPD a "material fact" which should be known to consumers and published in October 1979 a regulation requiring a label warning on hair dye products containing 4-MMPD which was to become effective April 16, 1980. The regulation required that hair dyes containing 4-MMPD bear the following warning:

Warning - Contains an ingredient that can penetrate your skin and has been determined to cause cancer in laboratory animals. Some hair dye manufacturers held that the potential risk was too small to be considered "material" and challenged the validity of the regulation in court. The Agency decided to reconsider its earlier position and entered into a consent agreement with the hair dye manufacturers. The effective date of the regulation has been stayed until completion of the assessment of the carcinogenic risk of 4-MMPD in accordance with scientifically accepted procedures.

In addition to 4-MMPD, the following other hair dye ingredients have been reported to cause cancer in at least one animal species in lifetime feeding studies: 4-chloro-m-phenylenediamine, 2,4-toluenediamine, 2-nitro-p-phenylene-diamine and 4-amino-2-nitrophenol. They also were found to penetrate human and animal skin.

Determine whether the manufactured hair dye products contain 4-MMPD, non-listed metallic salts or vegetable substances as dye ingredients. Also identify and report hair dye products not bearing the caution statement of Section 601(a) and containing a non-listed (non-approved) coal-tar color.

2007-02-01 19:50:54 · answer #1 · answered by Anonymous · 0 0

Only if it's being brewed under the bridge. There's nothing remotely flammable about hair dye.

2007-02-01 19:40:31 · answer #2 · answered by Rey Gamberro Salvador 2 · 0 0

Probably. Dye is pretty flammable and could be used as a flamethrower if you were to spray it with a match lit in front of it. That is in its raw state of course.

2007-02-01 19:37:28 · answer #3 · answered by Desert Rose 5 · 0 0

if you have blonde hair it will naturally get bleached by the particular sun in the summer. There was this guy in my class who also had golden blonde hair that was a medium brown near the base. When he came back to college after summer vacation, it was almost platinum blonde!

2017-02-24 03:28:18 · answer #4 · answered by Berman 3 · 0 0

Jet black hair. I have truly dark brown hair and I consider dark hair looks better. I avoid really like blonde hair.

2017-01-28 17:29:13 · answer #5 · answered by ? 3 · 0 0

Is your hair before flammable... IF done right your have should still have the same pH as hair untreated..(4.5- 5.5) so if before it was it still is! HAVE fun Trying!!!

2007-02-01 19:36:08 · answer #6 · answered by SARAH D 4 · 0 0

i dont think so. ive been coloring my hair since i was 16, and im going to be 59 in a couple of weeks, ive not gone up in flames yet.

2007-02-01 19:35:41 · answer #7 · answered by Anonymous · 0 0

fedest.com, questions and answers