Choose Clothing, Choose Material That Is Good For The Human Body.

1, the comfort of clothing can be divided into physiological comfort and psychological comfort.

2, physiological comfort includes moisture absorption, air permeability, warmth retention, softness, scalability, weight and chemistry. Most of them are determined by the material properties of clothing. Psychological comfort includes color, luster, style, wrinkle resistance, stiffness, anti fuzzing and ball setting, and suitability with the environment. Many of the appearance performance is also caused by

The performance depends on it.

Hygroscopicity

Hygroscopicity refers to the ability of an object to absorb or release gaseous water in the air. Specifically, it refers to the ability of clothing materials to absorb sweat and steam discharged from the skin surface of the body in time, and pmit it to the air through the fiber to the other side of the fabric.

The better the performance, the better the hygroscopicity. The drier the human skin is, the less hot air will be, especially in the hot summer and vigorous exercise.

Clothing thermal and moisture comfort refers to the comprehensive heat dissipation and moisture dissipation performance of clothing which is significantly affected by human body comfort under hot and humid conditions.

The main ways to dissipate heat are conduction, convection, radiation and evaporation. However, under the thermal environment or movement conditions, the human body mainly relies on evaporation and heat dissipation to maintain heat balance, which accounts for more than 75% of the total heat dissipated by the human body.

When the body evaporates and dissipates heat, it will inevitably cause the humidity of the micro climate area between clothing and skin to rise, causing the human body to feel uncomfortable.

As a protective layer between the human body and the environment, clothing should enable the heat to distribute quickly without causing excessive increase in the micro climate and humidity in the clothing. Therefore, under the condition of heat and humidity, the comprehensive heat dissipation and moisture dissipation performance of the clothing will play an important role in the thermal balance of the human body.

The moisture absorption of clothing materials depends on the structure of fibers, the structure of yarns, the organization and finishing of fabrics.

In clothing materials,

The hygroscopicity of the material is better than that of the chemical fiber material, and the man-made fiber material is better than the synthetic fiber in the chemical fiber material.

Because there are some hydrophilic groups in natural fibers, some have hollow cavities or capillary tubes, so their moisture absorption and moisture permeability are mostly better. The thinner the yarn is, the thinner the material is, the more porous and porous material is, the larger the gap is, which is conducive to the absorption and volatilization of sweat.

Because the hygroscopicity of chemical fibers is generally low, in order to improve the hygroscopicity of chemical fibers, they usually blend chemical fibers and natural fibers or appear in the form of core spun yarn (such as polyester cotton core spun yarn consisting of polyester core yarn and cotton as blanket yarn), or appear in double-layer fabrics (such as polyester cotton, inner layer of cotton and outer layer of polyester). In recent years, some countries have developed highly hygroscopic fabric, and the emergence of superfine fiber, modified fiber and special shaped fiber fabric has increased the moisture absorption of fabrics to a certain extent, thus improving the comfort of clothing materials.

Warmth retention

Thermal insulation of clothing materials refers to the ability of materials to prevent air from passing through, that is, to prevent the heat exchange ability of both sides of the material.

Clothing materials must have proper warmth retention at certain times. For example, clothing in winter (including cold areas) should have strong thermal insulation to prevent frostbite. Summer clothing requires better diathermy, while spring and autumn should be warm enough to make people feel neither too cold nor too hot.

The warmth of clothing materials depends on the structure of fibers and yarns, the thickness and density of fabrics, and so on, depending on how much air they contain.

For example, cotton fiber has a middle cavity, which contains more static air, and there are more scales outside the wool fiber. There is more static air between the scales and the cortex. Acrylic fibers are curly and rich in still air, so they all have better thermal insulation.

The yarn is less twisted, the fabric is more fluffy and thicker, the more static air it contains, the better the warmth retention.

Acrylic fibers are more frizzy and fluffy, and contain more static air in the fabric. Therefore, its thermal insulation is better, even slightly higher than wool.

Today's fleece fabrics, and the porous cotton developed in recent years, improve their thermal insulation by increasing their gas content.

Fluffy fabrics and porous fabrics are good for retention of stationary air between yarns, fibers and fabrics.

But too sparse fabrics contain more air, but the flow of the air is enhanced, which is not conducive to thermal insulation and good air permeability. It is suitable for summer spring and autumn clothing.

Air permeability

Permeability refers to the ability of gas to pass through the fabric.

As clothing materials, there must be certain.

Sex, because the human skin is breathing all the time, and exchanging gas with the outside world. Every day there is the exfoliation of the dandruff and the discharge of sweat fat. From the hygienic point of view, the clothing material must have certain permeability, which is conducive to the exchange of gas inside and outside the fabric, and is conducive to the metabolism of the human skin.

Of course, as winter clothing material is relatively small permeability, is conducive to the warmth of clothing, summer clothing material permeability greater, the better, is conducive to the human body heat emissions, people feel cool and comfortable, but also have moderate warmth.

Nowadays, some people add air tight plastic cloth to thermal underwear to achieve the goal of blocking air flow and improving warmth retention. This is wrong. While keeping air away from warming up, it also hinder the exhaust of human body. From the point of view of human hygiene, it is also harmful to people.

Softness

Softness refers to the softness of the fabric, mainly referring to the tactile comfort of human skin.

The softer and softer the fabric is, the more comfortable the human body feels.

In particular, underwear, pajamas and other clothing close to the skin, soft feeling is very important.

Fabric softness is related to fiber variety, yarn twist, fabric organization and finishing.

Cotton and silk fibers are soft, and woven fabrics are also soft.

The smaller the twist of yarn, the looser the fabric is, the softer the fabric.

Fabrics with fuzz finishing and softening finish are also soft, and the fabric is comfortable to be processed into garments.

In addition, the smoothness of the material is also a skin tactile factor, a rigid fiber, and a large twist of yarn, which will make the surface of the garment material rough, easy to cause the itchy feeling and comfort of the skin, and the smooth surface of the material will make people feel comfortable.

Scalability

The fabric can be stretched after being subjected to external forces, and can be restored to its original state after being removed.

As a fabric for clothing, it should have a certain degree of flexibility. First of all, it is beneficial to the basic activities of the human body.

For sportswear, because of all kinds of sports, the intensity and range of motion of different parts of the body are different, and the requirements for different parts of the garment are also different. The elasticity of clothing materials can meet the requirements of specific sports items.

Many women's clothing, especially underwear, in order to highlight the beautiful lines of the female body, and make people feel comfortable, in addition to the factors we talked about before, better scalability is also the basic requirement.

Most knitted fabrics and elastic woven fabrics can meet the requirements.

The addition of spandex to the woven fabric has the best human comfort and elasticity. The spandex elastic fabric generally has a 15%-45% elastic range, which is suitable for gymnasts and ballet dancers.

Spandex elastic fabric has been widely used in all kinds of garments.

Spandex appears mostly in the form of core spun yarn in the fabric, and the high elastic fabric made of special chemical fiber has good flexibility.

Too tight, inelastic clothing restricts human activities and even affects people's normal breathing. Wearing such clothing for a long time will cause human bones to deform, which will be more harmful to immature adolescents.

Weight

The weight of the fabric is also important for the human body.

We throw away the uncomfortableness factor caused by the reason of tailoring, so the larger the weight of clothing material, the stronger the pressure to the human body, the more uncomfortable the human body feels.

In recent years, new materials have been emerging. New fabrics and thermal insulation materials are improving the warmth retention property. At the same time, the weight of materials has also been greatly reduced, making the clothing more lightweight and comfortable. People are more convenient, flexible and free when they are engaged in all kinds of production and life.

The trend of modern clothing development is light, thin, soft and stiff.

Clothing materials should be guaranteed to be light and stable, such as moisture absorption, warmth retention and breathability.

Of course, too light fabric may reduce the drape of fabrics and weaken the sense of stiffness. This should be noticed when we choose clothing materials.

Chemical properties

Natural fiber is very harmful to human body, and chemical fiber has relatively great influence on human body.

Different fibers are spun into yarns and woven into fabrics. After processing, they can be processed into consumers' hands or processed into various garments and then to consumers. A series of processes, such as dyeing, printing, finishing, etc., must be added and used for certain chemical substances. These chemicals are harmful to human body.

Clothing materials should be targeted at different people.

We should try to choose natural fiber materials and green products, such as colored cotton, which do not need to be dyed or colored, so as to avoid contact with chemical dyes.

Containing or containing less chemicals and less chemically treated materials.

Sometimes the sweat and dyestuffs excreted by the human body play an important role in human skin, and the clothing's comfort is reduced.

In addition to the above performance, with the improvement of modern science and technology,

Apocynum venetum has a certain therapeutic effect on human body, such as natural fiber material with health care function, so that clothing can improve the comfort of human body.

There are also antistatic, easy to produce static chemical fiber fabrics, it is easy to make people feel uncomfortable, and not easy to generate static natural fabric, people feel more comfortable.

However, as a special purpose material, such as polyvinyl chloride fiber fabric, it is easy to generate and maintain static electricity, and use it to make underwear and kneecap. It produces static electricity due to friction. It has a slight and regular "electrotherapy" effect on human joints, giving a warm and comfortable feeling, and has a good therapeutic effect on elderly and joint patients.