51results about How to "Increased local pressure" patented technology

The composite non-woven fabric comprises an upper-layer non-woven fabric body and a lower-layer non-woven fabric body, the composite non-woven fabric body is provided with a protruding area and a micro-embossment area, and protrusions of the protruding area are provided with inner spaces located between the upper-layer non-woven fabric body and the lower-layer non-woven fabric body. The micro-relief area is located on the composite part where the upper-layer non-woven fabric and the lower-layer non-woven fabric make contact with each other and provided with concave-convex textures. The concave-convex textures of the micro-embossment area of the composite non-woven fabric are achieved through mutual extrusion of the concave-convex texture structure on the composite roller and the protrusions of the embossing convex roller in the composite process, the local pressure of the composite part can be increased, firm bonding between fibers is promoted, and therefore the bonding force of the upper-layer non-woven fabric and the lower-layer non-woven fabric is improved; the production speed and efficiency are greatly improved, and the problem that the overall soft hand feeling of the composite non-woven fabric is affected due to the fact that the composite part of an existing composite non-woven fabric is stiff and hardened is effectively solved.