There are many SEM-image sites on the Internet. Synthetic fabrics are man-made copies of natural fabrics. Synthetic fibers do not occur in nature as themselves but are usually derivatives of petroleum products. Examples of common synthetic fabrics are polyester, spandex, rayon, and velcro. A plant in nature gave the inventor of Velcro the idea for the product.
Velcro is in the class of materials called polymers .
The reference source URL is the Earth and Planetary Science program at the University of California at Berkeley Hook and Loop fabric fasteners were invented in 1941 by George de Mestral after a day of hunting in the Jura Mountains in France. Carefully inspecting the burs in his wool pants and his dog's coat, he found hundreds of little hooks engaging the loops in the material and fur. De Mestral made a machine to duplicate the hooks and loops in nylon. A liquid crystal is, as the name suggests, a state of matter intermediate between a 'normal' liquid and a solid. Liquid crystal phases are formed from geometrically anisotropic molecules - usually this means they are cigar shaped, though other shapes are possible.