The hand feel visual inspection method is applicable to non-woven fabric materials in the form of loose fibers-Non-woven Shopping Bag.
(1) Cotton fibers are shorter and thinner than ramie fibers and other hemp-based craft fibers and wool fibers, and are often attached with various impurities and defects.
(2) Hemp fibers feel rough and hard.
(3) Wool fibers are curly and elastic.
(4) Silk is a filament that is long and thin with a special luster.
(5) Among chemical fibers, only viscose fibers have a large difference in strength between dry and wet states.
(6) Spandex fibers have very large elasticity and can be stretched to more than five times their length at room temperature.