The production process of spunlaced nonwovens fabric

The production process of spunlaced nonwovens

Fibrous materials→Openning & Blending → Tease→Cross lapping → Spunlace→The second tease → Drying→ Take-up→Water treatment & circulation

Spunlace

The water jet orifice of the water jet plate of the water stingy head squirts out many fine water jets, which shoot vertically to the fiber net. The water jet displaces a part of the surface fibers in the fiber network, including the vertical movement to the reverse side of the fiber network. When the water jet penetrates the fiber network, it is scattered to the reverse side of the fiber network in different directions by the rebound action of the supporting screen or drum. Under the dual action of the direct impact of the water jet and the rebound water flow, the fibers in the fiber network are displaced, interpenetrated, entangled and clasped, forming numerous flexible entangled nodes, so that the fiber network is strengthened.

Drying

The purpose of drying is to remove the stranded water in the fiber net in time, so as not to affect the tangling effect of the next spunlaced. When more water is trapped in the fiber mesh, the energy of water jet will be dispersed, which is not conducive to fiber entanglement. After spunlaced process, the moisture in the fiber mesh is reduced to the minimum, which is beneficial to reduce the drying energy consumption.

Water treatment & circulation

The spunlaced nonwovens production process uses a large amount of water. When the output reaches 5 tons/day, it requires about 150m3~160m3 water per hour. In order to save water and reduce production costs, about 95% of the water must be recycled after water treatment.         

                                                                                                                                                                                                   -------- from Sohu

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