What are the parts of the hair?
Hair is mainly composed of hard protein horniness, which is about 85% and 90% of the total hair. There are also various trace elements, such as iron, steel, iodine, fluorine, selenium, zinc, arsenic and various vitamins and lipids. The health of hair is closely related to the tissues and organs in which it grows.
The basic ingredient of hair is keratin, which is composed of amino acids, which provide nutrients for hair growth. All kinds of fibrils can only be calculated to cross-link each other through helical, spring-like structures to form the strength and flexibility of keratin, thus giving hair unique rigid and tough properties. Hair is made up of complex keratinized fibers.
The epidermis is the outermost layer of hair, which is composed of multiple layers of overlapping horny pieces, and its outer edge is beyond the hair tip. The cortical layer is the second layer of the hair, the middle layer, and the cortical layer is the most important part of the hair.
From the outer surface, the hair consists of hair roots and hair dryness, the part that reveals the scalp is dry, and the part below the scalp is the hair root, which is wrapped in hair follicles.
The main component of hair is keratin, accounting for more than 97% of hair, while the main component of keratin is amino acids. Hair consists of keratinized epithelial cells.
Each hair is composed of epidermal scale layer, cortical layer and medulla layer. The epidermis scale layer is the outermost layer of hair, usually composed of 2-4 layers of scales.
What are the four basic structures of a haircut?
1. Solid level, edge level, equal level, increasing level. The four basic haircuts are these four levels. First learn zoning, slicing, bunching, in learning to pull angle and level of the combination of hairstyle.
2. The structure of haircut is: haircut (upper and lower structure) (single body structure). The structure of haircut is: haircut (upper and lower structure) (single body structure). The phonetic alphabet is: "one, two, two. Pinyin is: jianxinf à.
3. The horizontal line is equipped with the cutting line parallel to the zoning line, and the shape of the hairstyle is parallel to the ground, with the length between the neck and the chin. This technique can create a classic BOB. The cutting line of A line is parallel to the zoning line, and the back is short and the front is long, which is A-Line-BOB.
4. Saw shearing is a technique of using serrated scissors to cut hair. The blade of the serrated scissors is serrated, the ends of the hair are uneven and the hair volume is reduced. Sawing shears are usually trimmed with the outline of the hair to make the whole hairstyle feel elegant.
The composition of hair
1. Hair is made up of inanimate hard protein keratin. It accounts for about 85%-90% of the total hair. In addition, water, lipids, pigments and trace elements are also indispensable components of hair. Each person has about 100000 hairs. Its diameter is about 0. 05-0. 15 mm and its PH value is 5-5.
2. Hair is one of the hairs and belongs to long hair. Under normal circumstances, the human head has 9-140000 hairs. It is an appendage of human skin. It is composed of hair stem, hair root and hair follicle, and the hair follicle can be divided into upper and lower parts.
3. The main component of hair is keratin, accounting for about 97%. Keratin is made up of amino acids. The characteristic of oriental hair is thick, black and hard, and it is dark because it contains more carbon and hydrogen particles. The characteristic of western hair is soft and soft, and the color is lighter because it contains less hydrocarbons.
4. Hair is mainly composed of hard protein horniness, which is about 85% and 90% of the total hair. There are also various trace elements, such as iron, steel, iodine, fluorine, selenium, zinc, arsenic and various vitamins and lipids. The health of hair is closely related to the tissues and organs in which it grows.
5. Hair is a special tissue formed by keratinization of keratinocytes of the epidermis. Hair refers to hair that grows on the head. Hair is not an organ, so it contains no nerves and blood vessels, but contains cells. In addition to increasing the sense of beauty, hair is mainly used to protect the head.
What are the nine basic types of haircut?
1. There are four basic types of hairstyle: solid type, equilateral type, equilateral type and increasing type. The main points of the basic operation of the haircut is to keep the scissors and the hair oblique upward or downward, not in parallel, but in an oblique movement, so as not to overlap and affect the hair hierarchy.
2. Point shearing method, sliding shearing method, thin shearing method. The basic techniques for beginners to cut women's short hair are some cutting, slippery cutting and thin cutting. Point cutting is a way to reduce the density of hair, but when you cut it, different height will have different effects.
3, the four basic types of hairdressing: the hair length of the solid shape (the color represents blue) is continuous, increasing slowly from the outer ring to the inner ring, and all the hair falls in the same horizontal position, thus forming an uninterrupted, static surface texture. The top hair follows the curve of the head.
What is the structure of the hair?
1. The main component of hair is keratin, accounting for about 97%. Keratin is made up of amino acids. The characteristic of oriental hair is thick, black and hard, and it is dark because it contains more carbon and hydrogen particles. The characteristic of western hair is soft and soft, and the color is lighter because it contains less hydrocarbons.
2. The basic component of hair is keratin, which is composed of amino acids, which provide nutrients for hair growth. All kinds of fibrils can only be calculated to cross-link each other through helical and spring-like structures. form the strength and flexibility of keratin, thus giving the hair unique rigid and tough properties. Hair is made up of complex keratinized fibers.
3. Hair is one of the hairs and belongs to long hair. Under normal circumstances, the human head has 9-140000 hairs. It is an appendage of human skin. It is composed of hair stem, hair root and hair follicle, and the hair follicle can be divided into upper and lower parts.
4. (1) protein: hair is mainly composed of protein. The protein is shaped like a spring, which is where the elasticity of the hair comes from. A hair is made up of tens of thousands of protein fibers. With a higher number of proteins, the hair is thicker and more elastic, and the hair thrown off while walking is easier to bounce back.
5. Hair is a special tissue formed by keratinization of keratinocytes of the epidermis. Hair refers to hair that grows on the head. Hair is not an organ, so it contains no nerves and blood vessels, but contains cells. In addition to increasing the sense of beauty, hair is mainly used to protect the head.
The basic knowledge of haircut for beginners
1. Shearing is a basic method of trimming by holding scissors with fingers or combs. It is generally used to trim the hair around the forehead, sideburns and ears. Knife point shearing is a basic technique of cutting hair with the tip of scissors.
2. The most important thing for beginners to have a haircut is to understand and be familiar with each reference point of the human head. 02 then is to master the partition line and division line: divide the hair into several areas before haircut to reduce the trimming space in order to achieve the accuracy of trimming.
3. The basic steps for a novice to learn a haircut include: proficiency in the use of tools (such as scissors, hairdryer, etc.), mastery of various shearing methods (such as cut, notch cut, flying cut, slipperm, etc.), and learning a perm, which is only the most basic step for a novice. Haircut technique: cut off your hair neatly with scissors.
4. the basic knowledge of haircut and the basic point of hairstyle know the correct location and name of the point in order to correctly connect the zoning line.
5. Basic knowledge of hairdressing Angle is the angle formed by the tangent of the hair piece raised by any position of the head through this point. The relationship between the basic knowledge of hairdressing and the level of hairstyle is represented by coordinates on the head of the curve, which determines the level of the haircut.
6. The training of scissors exercises is the beginning of becoming a basic hairstylist. Five moves, eight beats. Scissors should be held firmly, only move the thumb when cutting hair, the other four fingers can not move, according to personal habit to use the left hand or right hand to hold scissors, palm should be flexible to change direction, and should be proficient in both sides of the palm can be operated.
