MODAL: A relatively new interlining-factor fibric made from the pulp of beech trees. This soft and silky material has excellent draping qualities. It is considered a type of rayon and is considered to be a bio based product, not a natural product because it is heavily processed using a number of chemicals. It creates a soft, smooth, absorbent sheet that breathes well, and will keeps its shape. It is similar to cotton.
Muslin: is considered to be at the low end of the cotton spectrum. This is one sheet you may want to stay away from as these tend to be quite rough. Its thread count ranges from 128-140. It is generally used for less quality bedding items.
Organic Cotton: A natural cotton that is grown without the use of chemicals, pesticides, herbicides or fertilizers. To be considered an organic product it has to be certified, and approved by a United States Government 3rd party certification process to ensure authenticity. It holds up well and makes a nice sheet.
Percale: Is a smooth closely woven weave. The way in which it is woven allows air to pass through easily, so it tends to be more breathable. It comes in 100% cotton or a 50/50 cotton/poly blend. It is finer weave then muslin and the thread count ranges from 180-200. Percale is a strong, long lasting fabric and can be finished to have a crisp or a soft feel and it will soften after repeated washings.
Pima Cotton: Named after the Pima Native American tribe. This cotton is grown in the Southwest United States and in South America. It is similar to the Egyptian cotton. The main difference is geographical. It is also made of high quality cotton with a long fiber staple. This cotton sheet has a very soft feel and is very desirable in bedding.Click http://www.interlining-factory.com/ to know more.