Needle-punched nonwoven fabric is one of the most widely applied products in the textile industry; fields such as automotive interiors, geotextiles, filtration materials, and synthetic leather all rely heavily on its presence. The needle-punching production line serves as the core machinery that transforms "fiber into nonwoven fabric." Today, we invite you to step into the world of needle-punching production lines to explore their working principles and core value.
In fields such as mattress filling, thermal apparel, and greenhouse insulation, glue-free wadding is gradually displacing traditional foam to become the mainstream material, thanks to its advantages in breathability, resilience, and eco-friendliness. Consequently, the performance of the machinery used to produce glue-free wadding directly determines both product quality and production efficiency. Many clients often ask: How is glue-free wadding able to take shape without the use of adhesives? Furthermore, what are the core advantages of our specific glue-free wadding production equipment? Today, we will provide a detailed, informative explanation to answer these questions.
Compare ring spinning vs rotor spinning: quality, speed, costs, and applications. Learn which technology suits your yarn market and production goals.
Hard Wadding And Glue-Free Wadding: Hard wadding is manufactured by the hot air process. Compared with ordinary hot air cotton, it contains a higher proportion of low-melting fiber, with a relatively hard hand feel and a grammage generally ranging from 40 to 3000 grams per square meter. It is mainly white and can be made into sheets and coils. It is elastic, tough, wear-resistant, impact-resistant and tear-resistant, and is commonly used for car sofa cushions, mattresses and water beds.
The carding process targets the fiber layer (licker-in carding), fiber bundles (flat carding), and pseudo-neps within the fibers (cylinder and flat carding). Adjacent carding teeth in a carding machine are arranged in a crisscrossing or parallel configuration. The relative movement between the teeth occurs in different directions, interacting and generating impact, friction, and carding forces on the fibers. These forces penetrate and break down the fiber bundles into individual fibers, dissolving neps. Excessive or insufficient force will affect the carding teeth's ability to grasp, card, release, and transfer fibers, leading to an increase in short linters and neps.
Discover how a complete medical cotton roll production line transforms raw cotton into sterile wound care products. Learn about key machinery like carding machines and cross lappers.