is a kind of non-woven fabric, which directly uses polymer chips, short fibers or filaments to form fibers through air flow or machinery, and then is reinforced by hydroentanglement, needle punching, or hot rolling. Woven fabric. The non-woven bag is a new type of fiber product with a soft, breathable and flat structure. The advantage is that it does not produce lint, it is strong, durable, and silky soft. In comparison, non-woven bags are easy to form and inexpensive to manufacture.
Features of non-woven fabrics: Durability, Disposable. Insulating, non-conducting. Softness, stiffness. fineness, expansion. Isotropic, anisotropic. Filterability, breathable and impermeable. Elasticity, stiffness. Light, relaxed, warm. Thin as cicada wings, thick as felt. Waterproof and breathable. Ironing, sewing, moulding. Flame retardant, antistatic. Water-permeable, waterproof, wear-resistant, fleece. Wrinkle resistance, good elasticity, high moisture absorption, water repellency. Using polypropylene resin as the main raw material, the specific gravity is only 0.9, only three-fifths of cotton, with fluffy and good hand feeling.
At present, there are many non-woven fabrics available in the market with different specifications and different costs. Simply put, the thicker the non-woven fabric, the higher the cost. The thickness specifications of the non-woven fabric that can now be provided to customers are: 25g, 40g, 50g, 60g, 70g, 75g, 80g, 90g, 100g , 120g, 150g, 180g, 200g, 220g, 230g, 250g, although there are many specifications of non-woven fabrics, if it is used as a shopping bag in a supermarket, it is generally recommended to use a non-woven fabric of 70g-100g.
And those thin non-woven fabrics, such as 25g-60g non-woven fabrics, are generally used as linings for clothing. And those thick non-woven fabrics can be used as product packaging. The processing cost of non-woven bags also includes two aspects: the cost of sewing; the cost of printing LOGO on the bag. Basically, there is not much difference in the sewing cost of non-woven bags, but the printing cost is quite different, because the printing cost is charged according to the number of colors. For example, the cost of printing two colors is the cost of printing one color. twice, and so on.