The concept and characteristics of artificial cotton
1. What is artificial cotton?
Rayon is the common name for viscose fiber. Viscose fiber refers to α-cellulose extracted from cellulose raw materials such as wood and plant stalks, or man-made fiber made from cotton linters, processed into spinning solution, and then wet-spun.
2. Characteristics of artificial cotton
Man-made cotton is characterized by good dyeability, high brightness and fastness, comfortable wearing, resistance to dilute alkali, and hygroscopicity close to cotton. The disadvantages are that it is not acid-resistant, has poor resilience and fatigue resistance, and has low wet mechanical strength. It can be spun purely or blended with chemical fibers such as polyester.
The concept and characteristics of pure cotton
1. What is pure cotton?
Pure cotton fabric is a textile made of cotton as raw material and made of warp and weft yarns intertwined vertically and horizontally through a loom. Currently, according to the actual source of processed cotton, it is divided into native cotton fabrics and recycled cotton fabrics.
2. Characteristics of pure cotton
1. Cotton fiber has good hygroscopicity
Under normal circumstances, Cotton fiber can absorb moisture from the surrounding atmosphere, and its moisture content is 8%—10%, so when the human skin comes into contact, it feels soft and comfortable. If the humidity of the cotton fiber increases and the surrounding temperature is high, all the moisture in the cotton fiber will evaporate. Keeping cotton fabrics horizontal also makes people feel comfortable.
2. Pure cotton fabric has good heat resistance
At the same time, When the temperature is below 110 degrees Celsius, it will only cause the water on the fabric to evaporate and will not damage the fiber. Therefore, cotton fiber can be used at room temperature and washing will not affect the fabric. Its heat resistance also improves the durability and washability of cotton fabrics.
3. Cotton fiber has strong resistance to alkali
In alkaline solution, cotton fiber will not be damaged, which reflects the alkali resistance of cotton fiber. Therefore it facilitates the washing and disinfection of contaminated impurities after use.
4. Cotton fiber also reflects hygiene
Cotton fiber is a natural fiber. Its main components are natural pigments and a small amount of waxy substances, nitrogen-containing substances, and pectin. After testing and practice, cotton fiber has no harmful substances in contact with the skin. Irritation and side effects, long-term use is beneficial and harmless to the human body, and its hygienic performance is good.
How to distinguish artificial cotton from pure cotton
1. Finish
Artificial cotton, The surface of the cloth is smooth, with very few yarn defects, no impurities, and is clean and smooth; while cotton shells, impurities, etc. can be seen on the surface of cotton cloth, and its smoothness is not as good as that of artificial cotton cloth.
2. Yarn count evenness
The yarn count of artificial cotton cloth is even and there are few yarn defects; while the yarn count of pure cotton cloth is not as good as that of rayon Uniform, especially for medium-coarse cloth.
3. Feel
Man-made cotton fabrics, whether thick or thin, are mostly soft to the touch, while cotton has a slightly rough feel.
4. Color
Artificial cotton has good luster and color. Compared with cotton, artificial cotton is more bright and beautiful.
5. Wrinkling
Man-made cotton cloth is easy to wrinkle. When you hold a handful of cloth with your hands and spread it out, there will be many wrinkles and it is not easy to recover in time. Cotton cloth Although there is wrinkles, it is lighter than artificial cotton.
6. Drape
Rayon has better drape, while cotton drape is not as good as rayon. Rayon clothing vs. cotton clothing
7. Powerful
The strength of artificial cotton is lower than that of cotton. Especially in humid environment, the fastness of artificial cotton is poor. When compared with drawing from the edge of the cloth and stretching, artificial cotton is easier to break than cotton. Therefore, , the texture of artificial cotton is mostly thick, not as light and thin as pure cotton and linen.
8. Burning
man-made Cotton is close to the flame and burns quickly, causing black smoke, curling and melting just like we burn plastic. The lower the cotton content, the stronger the gelatinous texture;
Cotton does not shrink or melt when it is close to the flame. When exposed to flame, it burns rapidly with orange flame and blue smoke. Leave the flame and continue burning. The burning paper will produce less odor and ash, which will appear in a linear shape. The ash is soft, light gray, and easily turns into powder when touched.
