History of Cotton
The word ‘Cotton’ is derived from the Arabic word ‘katan.’ Cotton fiber is collected in the form of unicellular hair from the seed of the cotton plant. Malvales is the order of cotton plant, Malvaceae is the family, Gossypieae is the tribe, and Gossypium is the genus.
More than 5000 years BC, cotton was first used in the middle east and India. During the invasion of Alexander the Great in India, its use spread over Europe. During the eighteenth century, England began to manufacture cotton, and it quickly spread to America. Until the invention of man-made fibers, it was the most important textile fiber. Annually around 25 million tons of cotton are produced annually, and it is increasing at a rate of 2% per annum.
Cotton Cultivation and Harvesting
- The outside layer of the cotton is the cuticle. It contains some cellulose with fat and waxes. The wax components in the cuticles enable it to adhere tenaciously to the primary wall.
- The primary wall contains criss-cross fibrils of cellulose and some pectins. It gives peripherical strength to the fiber. The degree of polymerization of cellulose in the primary wall is between 2000-6000.
- The secondary wall remains between the primary wall and the lumen and constitutes the bulk of the cellulose component. Nearly 100% cellulose is present in the secondary wall of a wholly matured fiber. The degree of polymerization of cellulose is near 14000 in the secondary wall.
How Do You Knit without Holes?
No matter which color-changing technique you’re using, you can always end up creating unwanted holes between stitches while changing colors. Typically, it happens due to not following the knitting technique correctly and leaving loose ends.