Preview

Tensile Hair Strengh

Better Essays
Open Document
Open Document
1311 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Tensile Hair Strengh
Investigating the effect of heat on the tensile strength of human hair

Contents page

1.

Abstract (summary):

Daily care damages human hair and renders cavities, or holes in the endocuticle, damage such as this to the hair can be from daily use of heat appliances. The aim of this investigation is to find out whether hair that has been damaged due to heat can be strengthened by apply a conditioner. The hair was heated at 200 degrees in an oven and once removed divided into two different groups – a group that would be treated with the conditioner and a group that wouldn’t. Once the hair had been treated or not it was then carefully placed in a sticky note to be wrapped up, making sure not to twist or bend the hair. Weights were then hung of the hair to test the strength of each, once snapped the amount they could hold was recorded.

Null hypothesis:

Hypothesis: There is a significant positive correlation between the strength of hair that has been heated and the strength of hair once it has been conditioned.

Research:

Human hair is a natural fibre that is made up largely of a protein called keratin, 80% of hair is formed by this protein. Keratin contains a high concentration of sulphur which is produced from the amino acid cystine.

Rationale:

Many women and some men are obsessed with hair care routines and mirroring sleek shiny hair styles like celebrities. The fixation with maintaining shiny hair and being able to alternate between styles has had a massive effect on the cosmetic industry. With a number of people using straighteners, curling irons or hairdryers daily many cosmetic companies such as Tresemme and Pantene have benefited from creating products that help create this look and maintain healthy hair. Although the companies claim that these products work this investigation will look into whether or not the products actually help maintain strong healthy hair or if once the hair has been damaged from heat it’s no possible

You May Also Find These Documents Helpful

  • Powerful Essays

    The stylist researched two perspective vendors to determine the best option for the salon. The two vendors researched were Alternative 1, Alicia Lee representing Dudley hair care products and Alternative 2, Frank Milam representing Design Essential hair care products. The criteria used to judge the two alternatives were as follows: price, service, quality and delivery. The research included online research (comparing prices) calling other salons, and testing the products. The evaluation of the two alternatives points out that Alternative 2, Frank Milam with Design Essentials should be recommended. The recommendation shows they offer better pricing, savings of $5.75 - $12.75 for a bottle of shampoo, better promotions for purchasing products, they have a quality money back guarantee and faster delivery…

    • 809 Words
    • 4 Pages
    Powerful Essays
  • Good Essays

    Hair Testimony Essay

    • 865 Words
    • 2 Pages

    provide the pigment of the hair. It protects the other two layers of the hair. Hair can…

    • 865 Words
    • 2 Pages
    Good Essays
  • Satisfactory Essays

    Expert Hair Testimony

    • 257 Words
    • 2 Pages

    Hello ladies and gentlemen of the jury my name is Brittany Marroquin. I am a hair analysis expert. I am here today to determine whether or not the suspects are responsible for the crime that has been committed.…

    • 257 Words
    • 2 Pages
    Satisfactory Essays
  • Powerful Essays

    Marital Status / Family: Currently single, previously divorced once, not in relationship since divorce. Has an 11-year-old daughter.…

    • 1732 Words
    • 7 Pages
    Powerful Essays
  • Good Essays

    The House on Mango Street

    • 1919 Words
    • 8 Pages

    a) Your hair texture and who determines if your hair texture is considered good hair or…

    • 1919 Words
    • 8 Pages
    Good Essays
  • Satisfactory Essays

    Essay On Cosmetology

    • 359 Words
    • 2 Pages

    Each day many people around the world alter their hair chemically using chemical relaxers and perms. When a person with curly hair desires straight hair they get relaxers which has the key ingredient sodium hydroxide (NaOH). Sodium Hydroxide breaks down the hair bonds in textured hair with an end result of straight hair. A hair relaxer is so strong that in order to bring your hair back to a normal state of its original curliness is to cut the relaxed hair so new bonds can reform. Perms are commonly used by white women (as well as men) with straight hair. A chemical called ammonium thioglycollate which is a solution of salt, thioglycolic acid and ammonia (HSCH2COO− + NH4+ ⇌ HSCH2COOH + NH3) activates to create wave…

    • 359 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Hair Loss In Women Essay

    • 648 Words
    • 3 Pages

    increasingly women are beset with the hindrance of shedding their hair to the factor of getting bald. I know that almost all men of their 30s expertise this hair trouble; nonetheless, I never realized that it could additionally occur to females like me.…

    • 648 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    Evidence Hair Evidence

    • 430 Words
    • 2 Pages

    Hair is a charcter shared by all humans. Hair is a form of class evidence that had been useed in forensics analysis. Class evidence is evidence that can be linked to a group of people rather than individual evidence which can only be linked to one person.…

    • 430 Words
    • 2 Pages
    Powerful Essays
  • Better Essays

    In 1909, Morgan opened a tailoring shop, selling coats, suits and dresses. While working in this shop he came upon a discovery which brought about his first invention. He noticed that the needle of a sewing machine moved with such a high speed that often its friction would scorch the thread of woolen materials. He then set out to develop a liquid that would be a useful polish to the needle, reducing friction. Once, when his wife called him to dinner, he wiped the liquid from his hands onto a piece of pony-fur cloth. When he returned to his workshop, he saw that the fibers on the cloth were now standing straight. He conceived that the fluid had actually straightened the fibers. In order to confirm his theory, he decided to apply some of the fluid to the hair of a neighbor's dog. The fluid straightened the dog's hair so much, that the neighbor, not recognizing his own pet, chased the animal away. Morgan then decided try the fluid on himself, trying small portions of his hair at first, and eventually his entire head. He was successful and had invented the first human-hair straightener. This invention has helped a…

    • 1409 Words
    • 6 Pages
    Better Essays
  • Satisfactory Essays

    Introduction to Colour

    • 546 Words
    • 3 Pages

    When we are looking at colouring hair we have several things to take into consideration:…

    • 546 Words
    • 3 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Court Testimony

    • 382 Words
    • 2 Pages

    Here are some of the things you should know about hair. Hair is made up of a medulla, cortex, and cuticle it has a follicle in the skin where the hair sprouts up from the shaft. It varies in length from long, short, or medium sized, it also varies in color but just to name a few there are blonde, black, brown, red etc. Hair has three developmental stages, the first one is called the anagen stage which is the stage where the hair starts Its growing process, the second stage is catagen which is the stage where your hair keeps growing but, it also starts changing like becoming brittle, damaged, and weathered. Lastly there is the telegen stage where the hair is very dormant or non-existing.…

    • 382 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Extensions

    • 593 Words
    • 3 Pages

    Have you ever seen someone with the most beautiful, long and luscious hair? Now your interest is sparked, your intrigued. You ask yourself, “Is that her hair”? 90% of the time, it’s not. Most women wear hair extensions in the form of wigs, “weaves”, or braids and twists. Wigs tend to cover the whole head and are structurally diverse. Weaves are the most commonly worn form of extensions. Braids and twists have become a more and more popular choice of extension in the past year.…

    • 593 Words
    • 3 Pages
    Good Essays
  • Good Essays

    In crime scene investigations there is a lot of evidence that is valuable. That is including hair that is found at a crime scene. However, hair may not be seen as valuable evidence, but it is. Hair can tell you things that other evidence cannot. It can give you information about the unknown perpetrator and narrow your list of suspects.…

    • 1122 Words
    • 5 Pages
    Good Essays
  • Good Essays

    Brazilian loose wave curl extensions will give you the same waves for hair styles that you see in popular magazines. Extensions can be curled and dyed in any way that you like without an adverse reaction.…

    • 346 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Microscopic Hair Analysis

    • 1028 Words
    • 5 Pages

    Another source discussing hair analysis, emphasizes the problem with the presentation stage in expert witness testimony in court (3). Not only has contamination been a reason for false convictions (1), but also the ways in which the testimony from the hair analysts is worded (3). Investigations of how the phrasing and wording of expert witness testimony impacts the final court decision have been done, revealing the misuse of words in court have contributed to wrongful convictions, which have created the view of unreliability to the science of hair analysis (3). Forensic scientists undergo much stress when entering the courtroom (3), leading to forensic scientists exaggerating the worth of the hair evidence in testimony the hair evidence in…

    • 1028 Words
    • 5 Pages
    Good Essays

Related Topics