Base cloth for air bag

Abstract

The invention discloses base cloth for an air bag. The base cloth comprises a base cloth body, a base cloth layer and a middle anti-tear layer; the middle anti-tear layer is arranged at the middle part of the interior of the base cloth body; a second elastic layer is arranged on the upper side of the middle anti-tear layer; a first elastic layer is arranged on the lower side of the middle anti-tear layer; a synthetic fiber fabric layer is arranged at the top of the first elastic layer; the base cloth layer is arranged at the bottom of the second elastic layer; micro air holes are uniformly formed in the base cloth body; the micro air holes are perpendicular to the various material layers; and the upper ends and the lower ends of the micro air holes penetrate through the base cloth body. With the adoption of the first elastic layer and the second elastic layer that first elastic cloth, a TPU film and second elastic cloth are sequentially laminated, and are bonded into integrated structures through hot melting machining, the elasticity of the base cloth is improved substantially, a deformation space generated by the base cloth is strengthened, impact force generated by the air bag can be reduced, and injury on a human body is reduced.

Description

technical field [0001] The invention relates to the technical field of airbag base fabrics, in particular to an airbag base fabric. Background technique [0002] In recent years, the installation rate of airbags, one of the safety components of automobiles, has rapidly increased. When a car crashes, the sensor senses the impact and generates high-temperature, high-pressure gas from the inflator, which quickly deploys the airbag. , so that when the driver and the passenger's body are flying towards the impact direction, the head is particularly prevented and protected from colliding with the steering wheel, front windshield, and door glass, but the existing airbags generally have the following defects: [0003] 1. The impact time of a general car accident is only 0.2s, and the pop-up time of the airbag is 0.02s-0.04s. The instantaneous speed is as high as 300 km / h, and the impact force is relatively large, which is easy to cause harm to the human body; [0004] 2. The struct...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a base cloth for airbags, to solve the problem that the impact force generated in the above-mentioned background technology is relatively large, it is easy to cause harm to the human body, the structural strength of the airbag base cloth is not enough, and high temperature and high pressure gas is injected into the airbag. When it explodes and unfolds rapidly, it cannot leak and shrink quickly, which may easily lead to suffocation.

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