COTTON THREAD

Cotton threads are made from twisting the fine staples (fibers) from a cotton bowl to create a thread. The raw material is Egyptian long-staple cotton. The advantages of cotton threads are: its strength, medium sheen, and the natural fibers help grab the fabric to create a tight seam. Low-to-high lint depending on the staple length and processing, and quality cotton threads can be more expensive.

Mercerized

Mercerization is the process of immersing the cotton fibers in a caustic solution which causes the fibers to swell. This allows the dye to better penetrate the fibers and increases the luster of the thread. Mercerizing also increases the strength of the cotton thread. Nearly all cotton threads made for sewing all mercerized, whether the label states Mercerized or not.

Gassed

Cotton thread that has been gassed is smoother, has lower lint, and a brighter sheen. The thread is passed through a flame at high speed to burn off the longest pieces of lint, resulting in a less fuzzy thread. Gassing is also called silk finish or polished cotton. You can tell the difference between a gassed and ungassed thread if you compare the amount of fuzz (lint) between the two threads. 

Cotton Thread has been used by sewers for hundreds of years for its natural softness and versatility as a sewing thread. Cotton threads are soft, with a natural look and feel ideal for sewing on natural fiber fabrics like cotton or linen. They also have some heat resistance which allows them to withstand ironing with no problem. Cotton Threads are not as flexible as other synthetic thread materials, so they are best when used with lighter, less coarse fabrics. Cotton Threads are also excellent for basting, embroidery, blind stitching, buttonholes, and more. Raw white cotton thread could be used for garment dyeing application because of its easy dyeing performance or if the use of cotton is required.