How to quickly distinguish between artificial cotton and pure cotton?

1

Concept and characteristics of artificial cotton

What is artificial cotton?

Artificial cotton is the common name for viscose fiber. Viscose fiber refers to cellulose made from wood and plant stalks. α-cellulose extracted from raw materials, or cotton linters as raw materials, processed into spinning solution and then wet-spun to make man-made fibers.

Artificial cotton features

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.

What is pure cotton?

Pure cotton fabric is made of cotton as raw material. It is made of warp and weft through a loom. Textiles made of vertical and horizontal yarns intertwined with each other. Currently, according to the actual source of processed cotton, it is divided into native cotton fabrics and recycled cotton fabrics.

Pure cotton features

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, below 110 degrees Celsius, it will only cause the water on the fabric to 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 alkaline solution, cotton fiber will not be damaged, which reflects the resistance of cotton fiber. alkaline. 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 pigments and a small amount of wax-like substances and nitrogen-containing substances, pectin. After testing and practice, cotton fiber has no irritation or side effects when in contact with the skin. It is beneficial to the human body after long-term use and has good hygienic properties.

3

Eight ways to distinguish artificial cotton from pure cotton

The appearance of artificial cotton cloth is very similar to cotton cloth, and the main ways to distinguish it are the following points:

Smoothness

Man-made cotton cloth has a smooth surface 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.

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 uniform as that of artificial cotton , especially for medium-coarse cloth.

Feel

Man-made cotton fabrics, whether thick or thin, are mostly soft to the touch, while cotton has a slightly rough feel.

Color

Artificial cotton has good luster and color. Compared with cotton, artificial cotton is more bright and beautiful.

Wrinkling

Artificial cotton cloth is easy to wrinkle. When you hold a handful of cloth with your hands and spread it, there will be many wrinkles and it is not easy to recover in time. Although cotton cloth There is wrinkling, but less so than rayon.

Drapability

Artificial cotton has better drape, while cotton drape is not as good as artificial cotton.

Powerful

Man-made cotton cloth has lower strength and is not as good as cotton cloth. Especially in humid environment, artificial cotton has poor fastness. When used from The edges of the fabric are more stringy and stretched, and 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.

burning

Artificial cotton is close to the flame and burns quickly, causing black smoke and curling and melting just like when we burn plastic. 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.