Non-woven wave-absorbing fabric with layer structure and integrated forming method

• Main Authors: WANG GANG, JI HUI, DAI GUOLIANG, LIANG GAOYONG, XIAO HONG
• Format: Patent
• Language: Chinese; English
• Published: 27.10.2023
• Subjects: BRAIDING; COTTON-WOOL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS; KNITTING; LACE-MAKING; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL; NON-WOVEN FABRICS; TEXTILES; TRIMMINGS; WADDING

The invention relates to a non-woven wave-absorbing fabric with a layer structure. The non-woven wave-absorbing fabric is integrally formed by mixed suspension pulp of wave-absorbing fibers and common fibers through a wet laying technology and comprises a surface layer, a middle layer and a bottom layer, the surface layer is an impedance matching layer, the middle layer is an absorbing layer and the bottom layer is a reflecting layer; wherein the center length of the wave-absorbing fibers contained in the surface layer is L1, the center length of the wave-absorbing fibers contained in the middle layer is L2, and the center length of the wave-absorbing fibers contained in the bottom layer is L3; wherein L1 < lt >; l2lt; and L3. A structure with gradient distribution of the wave-absorbing fibers in the layer thickness direction is formed by regulating and controlling the length and the content of the wave-absorbing fibers, so that the wave-absorbing broadband is realized; the integrally formed non-woven fabric