The concept and characteristics of artificial cotton
What is Rayon?
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.
Characteristics of artificial cotton
Artificial 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
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.
Characteristics of pure cotton
1) Cotton fiber has relatively high 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 body It feels soft and comfortable on skin contact. 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 ℃, it will only cause damage to the fabric. The water will evaporate and will not damage the fiber, so 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 alkali solution, cotton fiber will not be damaged This phenomenon 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, and its main components are natural elements and A small amount of waxy substances and nitrogen-containing substances, pectin, after testing and practice, cotton fiber and skin contact without any irritation or side effects, long-term use is beneficial to the human body, and its hygienic performance is good.
Eight ways to distinguish artificial cotton from pure cotton
The appearance of artificial cotton cloth is very similar to cotton cloth. The main ways to distinguish it are as follows:
- Smooth finish
Man-made cotton cloth, smooth cloth surface, extremely yarn defects Less, no impurities, clean and smooth; while cotton shells, impurities, etc. can be seen on the surface of cotton cloth, and the smoothness is not as good as artificial cotton cloth.
- Thread count evenness
The yarn count of artificial cotton cloth is even. There are very few yarn defects; the yarn count of pure cotton is not as uniform as that of artificial cotton, especially in medium-coarse cloth.
- Feel
Man-made cotton fabrics, whether thick or thin, are mostly soft to the touch. The cotton has a slightly rough feel.
- Color
Man-made cotton has good luster and color, which is comparable to cotton. Compared with artificial cotton, it is more colorful and beautiful.
- Wrinkleability
Man-made cotton cloth wrinkles easily and should be pinched by hand If the cloth is spread out, there will be many wrinkles and it will not be easy to recover in time. Although cotton cloth has wrinkles, it is lighter than artificial cotton.
- Drapping
Artificial cotton has better drape than cotton. Rayon.
- Strength
The strength of artificial cotton cloth is lower and not as good as cotton cloth, especially In a humid environment, rayon has poor fastness. When drawn from the edge of the cloth and stretched, rayon is easier to break than cotton. Therefore, the texture of rayon is mostly thicker and not as light and thin as pure cotton and linen yarn.
- Burning
Artificial cotton is close to the flame and burns quickly, just like we burn Plastics also appear black smoke and curl and melt. The lower the cotton content, the stronger the gelatinous texture. Cotton is close to the flame and does not shrink or melt. 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 ash and appear linear. The ash is soft, light gray, and easily turns into powder when touched.
