Knitted double pique fabric, properties of knitted pique fabrics and uses of pique fabrics

  What is knitted double-pique fabric? Knitted double piqué fabric, often simply referred to as "double piqué," is a type of texti...

Cotton fiber important information

 Some important cotton cultivated country


Cotton is a major crop grown in many countries around the world. Some of the important cotton-cultivating countries are:

China: China is the largest producer of cotton in the world, accounting for approximately 30% of global production.

India: India is the second-largest producer of cotton, with approximately 22% of global production.
United States: The United States is the third-largest producer of cotton, with approximately 13% of global production.

Pakistan: Pakistan is the fourth-largest producer of cotton, with approximately 8% of global production.

Brazil: Brazil is the fifth-largest producer of cotton, with approximately 7% of global production.

Uzbekistan: Uzbekistan is the sixth-largest producer of cotton, with approximately 3% of global production.

Turkey: Turkey is the seventh-largest producer of cotton, with approximately 3% of global production.

Australia: Australia is the eighth-largest producer of cotton, with approximately 2% of global production.

Mali: Mali is the ninth-largest producer of cotton, with approximately 2% of global production.
Mali:

Greece: Greece is the tenth-largest producer of cotton, with approximately 1% of global production

What is Upland cotton and American Pima cotton?

Upland cotton (also known as Gossypium hirsutum) and American Pima cotton (also known as Gossypium barbadense) are two of the most commonly cultivated types of cotton.

Upland cotton is short-staple cotton, meaning it has fibers that are less than 1 3/8 inches long. It is the most widely produced type of cotton in the United States and accounts for approximately 97% of the cotton grown in the country. Upland cotton is used for a variety of products, including clothing, bedding, and towels.

American Pima cotton, on the other hand, is a long-staple cotton, meaning it has fibers that are longer than 1 3/8 inches. This type of cotton is primarily grown in the southwestern United States, particularly in California and Arizona. American Pima cotton is known for its softness, strength, and luster, and is often used in high-end products such as luxury bedding and high-quality clothing. It is also sometimes referred to as "Supima" cotton, which is a trademarked name for American-grown Pima cotton that meets certain quality standards.

What are the main elements of cotton fiber?

Cotton fiber is a natural fiber that is widely used in the textile industry. The main elements of cotton fiber can be broadly classified into three categories: cellulose, hemicellulose, and lignin.

Cellulose is the most abundant component of cotton fiber, accounting for about 90% of its weight. It is a linear polymer of glucose molecules and is responsible for the strength and durability of cotton fiber. Cellulose gives cotton fiber its characteristic properties, such as high tensile strength, good moisture absorption, and good dyeing properties.

Hemicellulose is a complex mixture of branched polysaccharides that are also present in cotton fiber. It accounts for about 5-8% of the weight of cotton fiber. Hemicellulose acts as a cementing material, binding the
cellulose fibers together and giving cotton fiber its flexibility and elasticity.

Lignin is a complex polymer that is present in small amounts in cotton fiber. It is responsible for the brown color of cotton fiber and gives it some of its strength and stiffness.

In conclusion, cotton fiber is primarily made up of cellulose, which gives it strength and durability, hemicellulose, which gives it flexibility and elasticity, and lignin, which gives it some of its stiffness and color. Other components present in cotton fiber also contribute to its overall properties and are important for its use in the textile industry.


Classification of cotton fiber based on staple length

Cotton fibers can be classified into different categories based on their staple length. Staple length refers to the length of the individual fibers in a cotton sample. Longer staple length cotton fibers are generally considered to be of higher quality than shorter staple length fibers. The following are the most common classifications of cotton fibers based on staple length:

Short staple cotton: Staple length of 20-24 mm. This type of cotton is commonly used in the production of low to medium-quality fabrics, such as bed sheets, towels, and clothing.

Medium staple cotton: Staple length of 25-28 mm. This type of cotton is used in the production of high-quality fabrics such as dress shirts, and lightweight summer wear.

Long staple cotton: Staple length of 29-34 mm. This type of cotton is considered to be of the highest quality and is used in the production of premium fabrics such as fine dress shirts, luxury bedding, and high-end clothing.

Extra-long staple cotton: Staple length of 35 mm or longer. This type of cotton is the rarest and most expensive of all cotton types. It is used in the production of the highest quality fabrics, such as luxury bedding, high-end clothing, and premium towels.

Overall, the staple length of cotton fiber plays a significant role in determining the quality of the cotton and the types of products that can be made from it.

Mention some grading systems of raw cotton

The grading of raw cotton typically involves evaluating various characteristics of the cotton fiber, such as length, strength, color, and contamination. There are several grading systems in use around the world, but the most commonly used grading systems for raw cotton include:

The U.S. Cotton System: This grading system is used primarily in the United States and is based on five factors: color, staple length, strength, micronaire, and leaf and extraneous matter (L&M).

The International Cotton Association (ICA) System: This system is used worldwide and is based on four factors: color, staple length, uniformity, and strength.

The Australian Cotton System: This system is used in Australia and is based on four factors: color, length, strength, and micronaire.

The Brazilian Cotton System: This system is used in Brazil and is based on four factors: color, length, strength, and micronaire.

The West African Cotton System: This system is used in West African countries and is based on four factors: color, length, strength, and maturity.


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