Professional knowledge about hair color?

Professional knowledge of hairdressing

1, the ratio of dye paste to molecular oxygen: generally, there are 1: 1:1.5, 1: 2, and different brands and

Professional knowledge about hair color?

Professional knowledge of hairdressing

1, the ratio of dye paste to molecular oxygen: generally, there are 1: 1:1.5, 1: 2, and different brands and dyes are different. 2, dyeing paste and background color usage: generally, less than 20% of white hair does not need to be added; 20%-50% of white hair can be without target color 2: primary color1; White hair 50%, target color 1: primary color1; 3, dye paste and tool color: General tool color is used to strengthen and hedge colors, but you must pay attention to the proportion when you add cool tool color inside. Chromaticity 1-5 degree plus 25% 6-7 degree plus 1 5% above 8-9 plus 5% plus 5% plus 5% plus 5% plus 5% plus 5% plus 5% plus 5% plus 5% plus 5%. 9%(30 degrees); 12%(40 degrees). 3%( 10 degree) as light dyeing depth (within 2 degrees) or soft color; 6%(20 degrees) chromatism, rooting, brightening 1 degree; 9%(30 degrees) is 2 degrees shallower; 12%(40 degrees) is lowered by 3 degrees.

Do two hairdressing students need to learn color knowledge?

You must know that I have been a barber and an apprentice. /kloc-I haven't studied in 0/year. Without acquaintances and good teachers, it is difficult to do anything else.

Basic knowledge of Sanmeifa dyeing and perm

Hair dyeing principle: open hair scales, bleach melanin, select dye paste and color;

The color code of dye paste is two numbers, such as 6/2. The former number is chromaticity, the smaller the number, the closer it is to black, and the latter number is color system. Another hair dyeing material is hydrogen peroxide, which is also hydrogen peroxide. Its basic function is bleaching. Dioxide milk is marked with concentration, such as 3%, 6%, 9%, 12%. The higher the concentration, the stronger the bleaching effect. So choose according to your needs. The required concentration of dark color is relatively low, and the required concentration of light color is relatively high.

The better the dye paste, the slower the coloring, and only the inferior dye paste will be very colored. It's like taking a big axe, cutting off the scales one by one, and then stuffing the color particles one by one.

If you want to dye it very lightly, such as 9 degrees, the stylist may bleach it with bleach first, so that the dyed color will be brighter and will not be gray. But bleaching powder is more harmful to hair. You can ask for bleaching with 0/00 dye paste and 9% hydrogen peroxide, and then color with your selected dye paste and 3% hydrogen peroxide.

Heating will accelerate the opening of hair scales and double the coloring speed, but it will also double the damaged hair. Hair salon needs heating for two purposes: one is to speed up and improve efficiency; The second is to give customers a feeling that dyeing hair is very professional, complicated and expensive.

The basic process of perm is divided into two steps. The first step is to break the sulfur bond and hydrogen bond in hair through chemical reaction, and the second step is to recombine and stabilize the hair core structure.

In addition, three doses of perm products are popular now. Generally speaking, if the packaging capacity of the third dose is the same as that of the first two doses, it is a simple conditioner. If the third dose is a small package, it will be varied, which may be pre-scalding protection, post-scalding repair, hydrating agent or pure water. It's good to know this. Hairstylists may boast that it is an exclusive patent or something. In fact, it is very common to add a third dose.

First of all, before you decide to have a perm, you should know whether your hair is resistant or damaged, fragile or normal and healthy. Good brands will have products specifically for all kinds of hair. If your hair is completely inelastic, then I suggest you give up the plan of perm, because your hair-unfortunately-is dead.

When you enter a hairdressing shop, you must first judge whether the barber is professional and honest enough. A hairdresser who is too young is absolutely unreliable.

Look at his talk again. Hairstylists who want to make money will only look at your hair and start recommending products. Start with the most expensive one, and you will reduce the price once. Moreover, he will say that your hair is not good, on the one hand, it is to promote more expensive products, on the other hand, it is to leave a way out for yourself. In case of scalding, you can put the blame on your hair.

The hair stylist in charge will ask your needs first, carefully observe your hair quality and make reasonable suggestions according to the actual situation.

Don't just listen to his recommendation, look at the price list. Adhere to product packaging. If it is not beautifully packaged, it must be a good product. There are several points that must be noted:

Domestic brands must have production licenses and hygiene licenses, and dyed products must also have special cosmetics licenses. All three are indispensable, and the factory name and address must also be clearly marked. Any of the above can be judged as fake and shoddy.

Imported brands must have import licenses and Chinese instructions. Don't believe such nonsense as "parallel imports". There is also a nominal "manufacturer of a company in a certain country". Don't even think about it, there is no doubt that it is false.

The technician's skill is revealed. The hair bundle coated with softener should be thin and narrow to soften evenly; But it's fast. If it takes 15 minutes to apply the medicine alone, the lower part will soften and the upper part will only be half finished. Do you think it should be washed?

The current perming products basically do not need heating, especially ionic perming, which will cause uneven softening of the inner and outer layers. So even if the store is busy and the stylist wants to send you away early, he must resolutely refuse the heat. Stereotypes are basically not a big problem. The final judgment of success depends on the effect, luster and natural fluency. After ironing, the hairdresser will do some tidying, blow-dry her hair and fetch water. When you go out, you must have a perfect hairstyle, check it carefully before ironing, and then see what will happen the next day.

Basic theoretical knowledge of hairdressing,,, detailed,,

Hairdressing Introduction Pruning and Seven Pruning Methods

Hairstyle modeling is mainly done by pruning, and it should be repaired according to the requirements of hairstyle, hair length, hair volume, contour shape, hierarchical structure and hair tip flow direction. But no matter what kind of pruning, cutting, grasping, picking, sawing and cutting are the most basic pruning techniques. Only by mastering the most basic skills can we change freely and create all kinds of beautiful hairstyles.

Trimmed outline

Trimming the outline is the first step in hairdressing. Usually, the hair is combed flat first, and then the hair is divided into regions according to the requirements of hairstyle, and each region is clamped with a large hairpin, and then gradually trimmed. Usually start at the back of the neck, cut to the sides and the top of the head, and finally trim the hair on the forehead.

When trimming the hair on the back neck and sides, first cut out a flush standard line, then lay down the back hair from bottom to top and cut it according to the standard line. And trim the hair on both sides in the same way. When trimming the top hair, comb it all around, and then cut it according to the hairstyle outline. Finally, a part of the hair on the forehead is selected to form an inverted triangle, and the width of the bangs is trimmed according to the requirements of the hairstyle, thus finishing the trimming of the whole outline.

Second, adjust the horizontal cutting method

Basic cutting method of inventory

1 clipper

Haircutting is a technique that uses fingers to cut hair frequently, which is characterized by convenient operation. When cutting hair, first distribute the hair pieces in sequence with a comb, comb the hair vertically or horizontally, then hold the combed hair with the middle finger of the left hand and the middle finger, straighten it with a wooden comb to make it at right angles to the hair roots, comb it to the required length of hairstyle, and slowly cut it along the back of the hand or palm. The scissors cut along the back of the hand are called external scissors, and the scissors cut along the palm are called internal scissors.

When cutting, pay attention to each strand of hair to be straight and connected with each other, that is, pay attention to the angle of each strand of hair to avoid breaking lines.

Understand the relationship between haircut angle and level. Hierarchy refers to the orderly arrangement of hair and a certain inclination of hair tips, which is an important part of hair style structure. The angle of trimming hair is closely related to the level. Generally, parallel shearing forms a low level or level (also called non-level or overlapping level), and vertical shearing forms a high level. Different parts and different angles of pruning form different levels.

The top hair is trimmed vertically upward and horizontally to form a moderate level; Pruning up will form a low level, and pruning down will form a high level. The side hair is vertically trimmed to the side at 90 degrees, and the level is moderate; Cutting at an angle of 45 degrees will form a high position; Oblique cutting at 45, with low levels or overlapping levels.

2 grasping scissors

Grasping and cutting is a technique of combing a strand of hair with a comb and then holding it with your fingers for trimming. It is different from scissors. In scissors, the hair is cut into pieces, while grasping scissors usually grab a bunch of hair with a large and slightly pointed bottom. Grabbing shears are usually used to trim hair at the top and sides.

When grasping and cutting, grasp the width of the hair root and determine the radian after cutting. Generally, the hair roots are larger and the radian after cutting is larger. On the contrary, the base is small and the arc after cutting is small. When grasping and shearing, different parts of grasping and shearing form different radians. Different grasping directions of upward, backward and forward will also produce different radians. When grasping and cutting, the position of scissors should be moderate, neither too high nor too low, which will affect the length of hair and the radian formed.

3 Selection and cutting

Pick and cut is to pick up a hair with a comb, pick it to a certain length according to the requirements of hairstyle, and cut off the excess hair. This is the best pruning method for scissors and wooden comb. Scissors and combs should be closely combined when picking and cutting. The comb stirs a strand of hair and cuts off the long hair exposed outside the comb teeth with scissors. Comb a pair of scissors, and the comb plays a guiding role. When cutting hair, the fixed blade of scissors should be parallel to the back of the comb, which is easy to cut evenly. When trimming, attention should be paid to keeping the section difference thin and even, so as to avoid disconnection or excessive density. When pruning is pushed upward, pruning should be pushed forward in different directions according to the needs of each part to solve the cross-section difference and decorative density.

In addition, when picking and cutting, we should correctly grasp the angle of provoking hair. Generally speaking, those with large hair angles have high levels, those with small hair angles have low levels. The hair that is provoked should conform to the arc contour of the head. When you pick and cut, you should pick and cut according to the arc contour of your head, not straight, so it is easy to cut corners. It is not advisable to cut too much hair. Pay attention to the connection between the upper, lower, front and rear hairs, and there can be no disconnection.

Four saw scissors

Sawing scissors is a technique of cutting hair with serrated scissors. One blade of serrated scissors is serrated, and after cutting, the hair tip is uneven and the hair output is reduced. Saw scissors are usually used to trim the outline of hair, giving the whole hairstyle an elegant feeling.

Sawing shears mainly keep scissors and hair diagonally up or down to cut hair. You can't cut parallel, but cut diagonally to avoid overlapping and affecting the hair layer. The serrated part should be considered in advance, so as to be aware of it. Generally speaking, the parts with more hair should be cut, and the parts with less hair, especially short hair and the sides of the head, should be cut less.

5 Cutting and shearing

Scissors are a method of cutting off hair by sliding it quickly with a knife or scissors. After cutting, the tip of the hair is nib-shaped, with a sense of lightness and movement. Clipping is usually used to repair layers, outlines and sparse hair.

When scissors cut hair, the blade of scissors should be slightly open. Put the hair caught by fingers into two blades with slightly inclined angles. Slide the blade over the hair to cut (cut) the hair. When cutting the wrist, use appropriate force. Too much hair will be cut off if it is too heavy. If it is too small, it won't be cut off. When cutting, hold your hair with your fingers and keep a certain tension, which makes it easier to cut off your hair. When cutting, you should master the sliding range of the scissors blade on the hair. Generally speaking, the nib with large angle is small in shape, and the nib with small angle is large in shape.

Pay attention to the angle between the razor and the hair, which is generally between 20-45 degrees. The bigger the angle, the smaller the shape of the pen tip, the bigger the shape of the pen tip and the smaller the angle, which will make the hair easily upturned and damage the hair. The sliding range of the razor on the hair determines how much hair is cut and the level of the hair. The razor has a large sliding range, and more hair is cut off, forming a high level; Razor has small sliding range, less shearing and low formation level.

6 tuojian

Bracing scissors is a basic cutting method of holding scissors with fingers or combs. Generally used to trim the hair on the forehead, temples and ears.

7-point scissors

Knife-tip scissors are the basic techniques for cutting hair with scissors tips. The method is to comb a strand of hair with a comb, hold it with your fingers, and then trim it vertically or slightly with scissors from top to bottom. Make the hair tip have a natural concave-convex feeling and lightness.

Tip: Correct use of scissors

Put the thumb and ring finger of the right hand into the rings of the movable handle and the fixed handle of the scissors respectively, hold the scissors, put the index finger and middle finger on the handle of the fixed handle, and hang the little finger behind the fixed handle to stabilize the blade. When cutting hair, the thumb swings the movable handle and the other four fingers hold the blade steady.

The three primary colors of hairdressing are the basic knowledge of hair dyeing.

Red \ yellow \ blue, hair color is also composed of these three colors, which are close to black.

The molecule of blue pigment is 8000, red pigment is 4000 and yellow pigment is 2000, which means that blue pigment is the smallest and yellow pigment is the largest. So when hair is bleached, blue is the easiest to fall off. After the blue falls off, the light transmittance increases, and we can gradually see the additive color of red and yellow, similar to brown. If you continue to bleach your hair, the medium-sized red will fall off before the yellow, so it is still yellow in the end. Yellow is the largest and cannot be completely bleached. If you want it to be colorless, white or gray, you need to use a contrast color.

I suggest you look at the color wheel. The color opposite to a color in the color wheel is called the reverse color of the color, also known as the color cast. The offset color of yellow is the sum of blue and red, which is similar to purple, but there is a quantity problem here. Purple is 6000, and yellow is 2000, which means that you can only use 1/3 of the total hair pigment to offset the remaining yellow. Plus, if the hair is yellow, it's very difficult.

Chromology in hairdressing is mostly used for color adjustment. If you learn color well, you can become a very good hair dyeing technician.

Professional hairdressing knowledge about how to make the desired hair color.

Chroma depth

① Deep dyeing and light dyeing: the target color is light background color depth = fading degree.

② Light dyeing depth: light primary color-deep target color = progressive chromaticity.

The function of dioxygen milk:

Artificial pigment in oxidized dye slurry; Natural pigments in bleached hair.

Use deployment

① Distribution: 3% =10; 6%=20 ; 9%=30 ; 12%=40 。 ② Function: 10 (3%) dioxygen emulsion plays the role of deep dyeing; 20 (6%) dioxygen emulsion can be dyed 1 with light color, covering white hair; 30 (9%) dioxygen milk can be dyed 2~3 shades lighter; 40 (12%) dioxygen emulsion plays the role of dyeing 4~5 colors and bleaching and fading.

Color theory

Color is the impression that an object produces through light waves emitted, reflected or transmitted visually. The purity and brightness of a color are called chromaticity. The cold and warm feeling that reflects the color is called light feeling. Mastering the basic theory of color is of great significance for improving bleaching and dyeing technology and creating beautiful hairstyles.

Main color (primary color):

Red, yellow and blue are three basic colors. Any color is a mixture of these three main colors, and the three main colors add up to black.

Secondary color (secondary color):

It consists of two tones in the main color, namely "red+yellow = orange", "red+blue = purple" and "yellow+blue = green".

Mixed color or complementary color (tricolor):

Equal parts of the first color and equal parts of the second color can be mixed with the third color. For example, the same amount of first-class and second-class colors can be mixed into brown, but some relative colors have the effect of canceling each other, and the result of cancellation can be combined into a darker gray.

Color tone

Chroma refers to the depth of color, and the hair is divided into 10 shades from deep to light.

Problems needing attention in dyeing hair:

① You can dye your hair 7 days after perm, and 7 days after perm. (2) Golden yellow and purple are contrasting colors, so they should not touch each other.

Knowledge of hair color

As we all know, the chromaticity of hair is 1- 10 degrees, and the amount of pigment they contain is inversely proportional. That is, if the chromaticity is 1 degree, the amount of pigment is 10. 12345678910109876543211corresponding to 2 and 9, 3 and 8. In other words, the amount of pigment they contain is inversely proportional. This is also the conversion formula we need to use when preparing dye slurry. Pigment amount of A * number of copies of A+pigment amount of B * number of copies of B =-amount of pigment after mixing. For example, A is a 5/7 dye paste and B is an 8/2 dye paste. If they are mixed according to 2: 1, what is their chromaticity? Then it's about to change. A chroma is 5, its pigment content is 6, B chroma is 8 and its pigment content is 3. The pigment content of AB mixture is (6*2+3)/3=5, so the corresponding chromaticity is 6 degrees. 6/72 after mixing. The chroma is 6, the main color is 7, and the brown secondary color is 2, which is dull cyan.

If you are satisfied, please accept it.

Basic knowledge of hairdressing and dyeing

Hair dyeing is one of the most common means of modern makeup, which uses plants (such as avocado, henna, Polygonum multiflorum, etc. ) or chemical pigments to dye the hair in the desired color. This is one of the most common services in modern barber shops.

There are two main uses of hair dyeing: one is to dye black to cover white hair; Second, for the sake of fashion, change the hair color with the mood, cooperate with the clothing and makeup, and fully show the personality. Dyeing hair has become a fashion. Young people can change the color of black hair with their moods, and fully display their personalities with their clothes and makeup. Middle-aged people have to dye black frequently because they keep growing white hair.

Hair dyeing is divided into plant and chemical. The characteristic of plants is that they do not harm the body, but the disadvantage is that they are single in color. Chemical dyeing is seriously polluted and destroys the blood system. Plant dyeing is gradually accepted by people, and there are more and more institutions to promote and study plant dyeing.

Chemical dyeing changes the structure of hair and the process of eroding scalp, and ammonia corrodes and invades hair follicles. Plant hair dyeing is a physical process, and nourishing elements are attached to hair and scalp like films, nourishing and caring hair and nourishing hair follicles. Just like a cut apple is covered with an oxide film, plant hair dyeing uses physical oxidation process to attach nourishing ingredients to hair and scalp.

Plant hair dyeing is an effective way to avoid and stay away from chemical damage. It is essentially different from chemical dyeing, which changes the structure of hair with chemicals, while plant dyeing is a process of nursing and nourishing. But plants dye their hair one color, black hair is dyed brown, and white hair is dyed burgundy. Therefore, after chemical dyeing, nail pollen can be used for nursing, repair and nursing. Nail pollen is the representative of plant hair dyeing. Nail pollen is called henna by ordinary people, henna in India, the Middle East and other places. It contains natural reddish-brown pigment, and its juice can dye nails and decorate itself. Plant hair dyeing is the essence extracted from plants, which is mild.

(7) Extended reading of hairdressing color professional knowledge:

Injury type:

1. Oxidant is an important part of hair dye, which is very destructive to hair keratin and easy to damage hair. Regular use will make hair dull, fragile, split and easy to fall off.

2. Most permanent hair dyes use aniline dye intermediates, and their toxicity and toxicity are higher in cosmetic raw materials. No wonder some people have allergies and even dizziness and nausea when dyeing their hair.

3. Hair dye consists of two components. When in use, mix them evenly and then apply them to the hair. I don't know that a chemical reaction took place at the moment of mixing, which produced a high concentration of harmful gas-dioxin. Dioxin is a strong carcinogen recognized by WHO. It enters the body through the respiratory tract and stays in the muscle for a long time, which is difficult to decompose and interferes with human endocrine, estrogen and thyroid hormone. Long-term exposure will lead to genetic variation and deformity of human body and induce diseases such as cancer. Therefore, it is scientific to be pregnant and pregnant women not to dye their hair.

Network hair dyeing

Basic theoretical knowledge of hairdressing tricolor

The three primary colors of hairdressing are red, yellow and blue, and the hair color is also composed of these three colors, which are close to black.

The molecule of blue pigment is 8000, red pigment is 4000 and yellow pigment is 2000, which means that blue pigment is the smallest and yellow pigment is the largest. Therefore, when hair is bleached, blue is the easiest to fall off. After the blue color falls off, the light transmittance increases, and you can gradually see the additive color of red and yellow, similar to brown.

If you continue to bleach your hair, the medium-sized red will fall off before the yellow, so it is still yellow in the end. Yellow is the largest and cannot be completely bleached. If you want it to be colorless, white or gray, you need to use a contrast color.

Analogous to the color wheel, the color wheel is directly opposite to a certain color, which is called the reverse color of the color, also called the color cast. Yellow offset printing color is the sum of blue and red, similar to purple. But there is a problem of quantity. Purple is 6000 and yellow is 2000.

Only 1/3 of the total hair pigment can be used to offset the remaining yellow. If the hair is yellow, it means that a lot of pigment has been removed from the hair, which is very easy to supplement the color and even contains no molecular oxygen.

(8) Extended reading of hairdressing color professional knowledge:

Tone: Also called accent color. It can be used to adjust the required color according to the customer's hair quality and needs, and can also be used for color flushing. General colors are blue, red, yellow, green, purple, orange and gray. Color is formed by adjusting the three primary colors of red, yellow and blue in dyes.

The temperature of a color depends on the number of yellow, red and blue that make up the color. Blue is the deepest color and the only cold primary color. It dominates red and yellow, transforming them into its own cold body. The depth of red is in the middle, belonging to the primary color of warm color. Yellow is the lightest primary color and also belongs to warm color.

When the three primary colors are mixed, they become secondary colors.

Yellow+red = orange The strongest warm color is secondary color.

Red+blue = secondary color of purple cool color system.

Blue+yellow = green, which is the strongest secondary color in the cool color system.

By mixing primary colors and secondary colors, tertiary colors can be obtained. (Note that the complementary colors of the primary colors must be secondary colors. )

Yellow+orange = yellow/orange warm color is a three-level color.

Blue+green = blue/green cool color is a three-level color.

Red+orange = red/orange warm color is a tertiary color.

Blue+purple = blue/purple cool color is a three-level color.

Red+purple = red/purple warm color is a three-level color.

Yellow+Green = the third color of the yellow/green cool color system.

Mixing with complementary colors will inevitably lead to browning, because mixing the primary colors with the secondary colors (including two primary colors) of complementary colors is actually mixing the three primary colors together. Natural hair color is a combination of three primary colors, which can create various shades of earth.

In other words, all natural hair colors are brown to some extent. The complementary color of blue is orange, the complementary color of red is green and the complementary color of yellow is purple.

Nine 1 Hair Dyeing Who can teach me the systematic theoretical knowledge and experience of hair dyeing so that I can skillfully use it in the hair salon! Professional, please come in.

All the colors in the hair salon are distinguished by chromaticity, that is to say, the depth of color, 2 to 3 degrees is natural black, which is similar to the color of undyed hair. For example, to dye yellow, there are 5 degrees yellow, 6 degrees yellow, 7 degrees 8 degrees 9 degrees. The higher the degree, the more obvious the color is, and so are other colors. See if you choose a more obvious color.

Say some theoretical knowledge about hair color.

As we all know, the chromaticity of hair is 1- 10 degrees, and the amount of pigment they contain is inversely proportional. That is, if the chromaticity is 1 degree, the amount of pigment is 10. 12345678910109876543211corresponding to 2 and 9, 3 and 8. In other words, the amount of pigment they contain is inversely proportional. This is also the conversion formula we need to use when preparing dye slurry. Pigment amount of A * number of copies of A+pigment amount of B * number of copies of B =-amount of pigment after mixing. For example, A is a 5/7 dye paste and B is an 8/2 dye paste. If they are mixed according to 2: 1, what is their chromaticity? Then it's about to change. A chroma is 5, its pigment content is 6, B chroma is 8 and its pigment content is 3. The pigment content of AB mixture is (6*2+3)/3=5, so the corresponding chromaticity is 6 degrees. 6/72 after mixing. The chroma is 6, the main color is 7, and the brown secondary color is 2, which is dull cyan.