The invention discloses leather-imitated superfine
fiber layered synthetic leather and a production process thereof, and belongs to the technical field of synthetic leather. The production process of the synthetic leather comprises the following steps: carrying out superfine
fiber alkali treatment and DMC / HEMAP / UV-1
monomer graft copolymerization modification; forming a
fiber net by air laying and gradient needling; anionic water-based PU resin containing wood
powder is used for impregnation reinforcement, and soft
hydrolysis-resistant water-based PU resin is used for
coating to form a porous
surface layer; and performing wet solidification, bionic
embossing, cationic dye
dyeing and
surface finishing to obtain a finished product. Through fiber modification, gradient structure, bi-component PU cooperation and
process optimization, the problems that traditional synthetic leather is hard in hand feeling, poor in breathability, low in texture
simulation degree, difficult to dye, weak in interlayer
binding force and the like are solved, and the product has high
simulation degree and excellent comprehensive performance and stability.