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Pure cotton and polyester cotton's difference

Views:1     Author:Site Editor     Publish Time: 2021-11-17      Origin:Site

What are cotton and wool?

Cotton is fiber, and wool is keratin. They are completely different things. Cotton does not smell like hair. Pure cotton feels soft but astringent when twisted. It is easy to dye but the color boundary is not as clear as polyester cotton. If you find the thread and burn it, it will burn into a fine ash without leaving agglomerates on the thread. Pure cotton has good water absorption. The opposite is true for polyester cotton.

Find a thread on the clothes and light it. If there is a burning smell, that is, the smell of burning hair, then it is pure cotton. You can try it. The pure cotton one feels more textured, and the polyester one is smoother. Also, the pure cotton does not ball, but the polyester pilling. Put it in water, the pure cotton absorbs water easily, but the polyester does not.

Take some yarn from the fabric, ignite it, blow it out, and rub the burned residue with your fingers. It feels that there are hard particles in polyester cotton; while there are no hard particles and all gray is pure cotton.

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Pure cotton, the clothing is made of natural cotton fiber. Generally, there is a label written [cotton] /Cotton/C. Pinch it down with your hands. If it is wrinkled. It is pure cotton. The surface of pure cotton will be the noodles after burning, otherwise it will be a hard black thing with oil drops (lumps). Put it in your mouth and bite it. If it squeaks, it will not be pure cotton. If there is no sound, it will be pure. cotton.

Characteristics of pure cotton and polyester cotton

① Hygroscopicity: Cotton fiber has good hygroscopicity. Under normal conditions, the fiber can absorb moisture from the surrounding atmosphere, and its moisture content is 8-10%. Therefore, it touches human skin and makes people feel soft and soft. Not stiff. If the humidity of the cotton cloth increases and the surrounding temperature is higher, all the moisture contained in the fiber will evaporate, so that the fabric can maintain a water balance and make people feel comfortable.

② Moisture retention: Because cotton fiber is a poor conductor of heat and electricity, its thermal conductivity is extremely low, and because cotton fiber itself has the advantages of porosity and high elasticity, a large amount of air can accumulate between the fibers, and air is a poor conductor of heat and electricity. Therefore, pure cotton fiber textiles have good moisture retention, and people feel warm when wearing pure cotton clothing.

③ Heat resistance: Pure cotton fabric has good heat resistance. When the temperature is below 110°C, it will only cause the moisture on the fabric to evaporate and will not damage the fiber. Therefore, the pure cotton fabric has no effect on the fabric under normal temperature, wear, use, washing, printing and dyeing. Influence, thereby improving the washability and durability of cotton fabrics.

④ Alkali resistance: cotton fiber has a high resistance to alkali. The cotton fiber will not be damaged in the alkali solution. This performance is conducive to the washing of pollution after consumption, disinfection and removal of impurities, and it can also be used for pure cotton textiles. Dyeing, printing and various processes are carried out to produce more new varieties of cotton weaving.

⑤ Hygiene: Cotton fiber is a natural fiber, its main component is cellulose, and a small amount of waxy substances, nitrogenous substances and pectin. The pure cotton fabric has been tested and practiced in many ways, and the fabric has no irritation or negative effect in contact with the skin. It is beneficial and harmless to the human body when worn for a long time, and has good hygienic properties.

Cotton is pure cotton. The 100% cotton fabric feels very soft and comfortable to the touch. Polyester cotton is a mixture of polyester and cotton, and it feels less comfortable than cotton. Dress and not as good as cotton sucker. Various fabrics woven from polyester staple fiber and cotton fiber blended yarn are commonly known as cotton.

Polyester is the largest variety with the highest output among synthetic fibers. Polyester has many trade names, "Polyester" is our country's trade name. The chemical name is polyethylene terephthalate, which is usually formed by the polymerization of chemicals, so the scientific name often carries "poly". Polyester is also called polyester. Structure and performance: The structure shape is determined by the spinneret hole. The cross-section of conventional polyester is round and has no cavity. Changing the cross-sectional shape of the fiber can produce special-shaped fibers. Improve brightness and cohesion. Fiber macromolecules have high crystallinity and high orientation, so the fiber has high strength (20 times that of viscose fiber) and good abrasion resistance. Good elasticity, not easy to wrinkle, stiff and good shape retention, good light resistance and heat resistance, quick-drying after washing, no ironing, good wash and wear performance. Polyester is a chemical fiber fabric, which is not easy to wick away perspiration. It feels thorny to the touch, it is easy to generate static electricity, and it looks bright when tilted.

How to distinguish between pure cotton and polyester cotton?

1. Visual recognition method:

A. 100% cotton: more fluff, poor surface finish

B. Polyester cotton: relatively less fluff, good surface finish, and a certain luster.

2. Combustion method:

A. 100% cotton: it burns immediately near flame, burns paper ignorantly, has less ash, soft black ash.

B. Polyester cotton: near flame shrinkage, dripping, foaming, weak fragrance, hard light brown

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Introduction of various cotton

The advantages of cotton are sweat-absorbing, breathable, soft and warm, and anti-sensitivity, but the disadvantages are easy to shrink and deform! It is very good to add part of polyester to cotton clothes nowadays, and how cheap are the pure-faced clothes now. Clothes with polyester or spandex are more expensive. Adding polyester will make up for the shortcomings of cotton.

Polyamide/cotton is more wear-resistant than polyester/cotton, and under the same composition ratio, the former feels stiffer.

Nylon/cotton: It is made of nylon yarn and pure cotton yarn interwoven on an air-jet loom. It is an ideal material for making casual wear and fashion. The specifications are plain weave, twill weave, matt, square root and other series. The cloth surface is bright and shiny, and the hand feels smooth and full. It is mostly suitable for windbreakers, cotton clothes, jackets and other styles.

Fine cotton: refers to combed cotton

Polyester: It is an important variety of synthetic fibers and the trade name of polyester fiber in my country. It is a fiber-forming polymer made from purified terephthalic acid (PTA) or dimethyl terephthalate (DMT) and ethylene glycol (EG) through esterification or transesterification and polycondensation reaction— —Polyethylene terephthalate (PET), a fiber made by spinning and post-processing.

Polyester cotton: refers to the general name of blended fabrics of polyester and cotton, commonly known as cotton.

Chemical fiber: Chemical fiber fabric is a new type of clothing developed in modern times, with many types. Here mainly refers to the pure spinning, blending or interlaced fabric processed by chemical fiber, that is to say, the fabric woven from purified fiber, excluding the blending and interlacing with natural fiber, the characteristics of chemical fiber fabric are woven into it. The characteristics of chemical fiber itself are determined.

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T/R polyester and viscose: T/R fabric is polyester and viscose blended fabric. Polyester viscose blend is a highly complementary blend. There are not only cotton type, wool type, but also medium-length type. Wool fabrics are commonly known as "Kaiba". When the polyester is not less than 50%, this blended fabric can maintain the characteristics of polyester's firmness, wrinkle resistance, dimensional stability, and strong washability and wearability. The mixing of viscose fiber improves the air permeability of the fabric and improves the resistance to pores; it reduces the pilling and antistatic phenomenon of the fabric.

Polyester/Viscose blended spinning: 65/35 or 67/33 for multiple uses. Polyester/rich blend is the same as polyester/viscose. The characteristics of this kind of blended fabric are smooth and clean fabric, bright color, strong hair style, good elasticity and good moisture absorption; but the iron-free property is poor.

Nylon/Nylon: is the Chinese name of synthetic fiber nylon. The translated name is also called "Nylon" and "Nylon", and the scientific name is polyamide fibre, that is, polyamide fiber. Since Jinzhou Chemical Fiber Factory is the first factory in my country to synthesize polyamide fibre, it is named "Nylon". It is the earliest synthetic fiber variety in the world. Due to its excellent performance and abundant raw material resources, it has been widely used.

Pure cotton feels good, comfortable to use, easy to dye, rich in pattern varieties, soft and warm, strong hygroscopicity, washable, low static electricity, but easy to wrinkle, easy to shrink, poor elasticity, acid and alkali resistance, not suitable for 100 It is processed for a long time at a high temperature above degrees Celsius, so it is best to spray wet when ironing cotton products, which is easy to iron. If possible, use a steam iron to iron the product after each use, the effect will be better.

Yarn-dyed cotton is a kind of pure cotton fabric, which is woven with warp and weft yarns of different colors. Because it is dyed first and then weave, the dye permeability is strong, the yarn-dyed fastness is good, and the heterochromatic yarn fabric has a strong three-dimensional effect and a unique style. It has the characteristics of pure cotton fabrics, but usually has a greater shrinkage rate.

High-count and high-density jacquard cotton fabrics have a particularly large warp and weft density and rich weave changes. Therefore, the fabric has a thick hand feel, good durability, and high surface finish. Most of them are light-colored backgrounds with natural flowers, which are particularly chic and elegant. They are among the pure cotton fabrics. The more advanced one.

Polyester-cotton brand products generally use polyester-cotton fabrics with a ratio of 65% polyester and 35% cotton. Polyester-cotton is divided into two types: plain weave and twill weave. The plain-weave polyester-cotton fabric has a thin surface, good strength and abrasion resistance, and minimal shrinkage. The appearance of the finished product is not easy to lose. It is affordable and durable, but it is not as comfortable and fit as pure cotton. In addition, because polyester is not easy to dye, polyester-cotton fabrics are mostly light and light-toned, which is more suitable for spring and summer. Twill weave polyester/cotton is usually denser than plain weave, so it looks dense and thick, and its surface gloss and hand feel are better than plain weave.





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