Natural fiber/polymer fibrous layer laminated automobile chair-back sheet material and production method

Abstract

A disclosed natural fiber/polymer fibrous layer laminated automobile chair-back sheet material comprises an integrated sheet material formed through lamination and combination of a first surface layer, a core layer and a second surface layer, the first surface layer and the second surface layer are non-woven fabrics, the core layer is a mixed fiber plate, the mixed fiber plate is prepared by compacting natural fiber and needle felt employing polymer fiber as the main composition, and the natural fiber is at least one selected from fibrilia, bamboo fiber, palm fiber and wood fiber. The invention also discloses a production method for the natural fiber/polymer fibrous layer laminated automobile chair-back sheet material. The automobile chair-back sheet material possesses the characteristics of being light in weight, small in density, excellent in breathability, and excellent in strength and toughness. By employing twice baking compaction and cold-press shaping processing in the production process, the sheet material density is improved.

Description

technical field [0001] The invention relates to the field of plates, in particular to a natural fiber / polymer fiber laminated car seat back plate and a production method. Background technique [0002] The chair back boards in the prior art mainly include metal materials, solid wood materials, polymer materials, plywood, density boards and particle board materials. Furthermore, as a car seat backboard, strength, thickness and weight need to be taken into account: under the condition that different material backboards have the same strength, the thickness should be as small as possible to meet the needs of maximizing the interior space of the car; at the same time, in order to adapt to the light weight of the car To quantify the trend, there is also a need to keep weight to a minimum. [0003] Seat backboards made of metal (usually steel plates) have high strength and small thickness, but the disadvantages are that they are heavy, and the elastic limit of the steel plates is ...

AI Technical Summary

Problems solved by technology

CN103304889A discloses a foamed board for car seats that uses polypropylene and polyethylene to be mixed and foamed in a certain proportion. The air holes inside the foamed board are used to reduce the probability of "broken needles" during the sewing process of the board and textiles. At the same time, the density and hardness of the backboard can be reduced, and the weight of the backboard can be reduced to a certain extent, but the manual also points out that the brittleness increases after foaming, and the backboard is prone to breakage under strong impact, which is not conducive to the safety of passengers.

The seat backboard made of plywood has certain strength and toughness, but its strength mainly depends on the type of glue, and its stability is poor

Density board and particle board use wood as raw material. Most of the particle board has a granular structure inside, which is not easy to mill, and it is easy to cause sharp teeth when cutting the board, which requires high processing equipment.

MDF fiberboard strength is worse than particleboard

In addition, the surface of the MDF in the prior art is smooth and smooth, and the material is fine and dense. If a molded flat plate with a pockmarked surface is used to mold the MDF, the resulting static friction between the surface and the textile is not strong, and it cannot reach the level of the chair back board. Requirements

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