Process for producing polyester industrial fiber for processing safe air bag of automobile

A technology of automobile safety and manufacturing method, applied in the field of chemical fiber product manufacturing, can solve the problems of high production cost and high processing cost of nylon 66 filament, and achieve the effects of reducing finishing cost, guaranteeing service life and reducing unit weight.
CN101634052BActive Publication Date: 2011-05-18ZHEJIANG HAILIDE NEW MATERIAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG HAILIDE NEW MATERIAL
Publication Date
2011-05-18

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Abstract

The invention relates to a process for producing a polyester industrial long fiber for processing a safe air bag of an automobile, which sequentially comprises the following steps: A. processing a polyester slice with high viscosity: enabling the viscosity of the polyester slice to reach 1.0-1.1dl / g; B. melting and spinning: transmitting the polyester slice after solid phase polymerization to a spinning screw rod extruder, melting in a spinning screw rod, entering a spinning assembly by a metering pump and extruding from a fiber spray plate with a diameter of 190 mm to 220 mm to spin fusant, , then heating by a slow cooling heater, carrying out cooling for molding by a side-molding blowing device and then entering a spinning passage; C. stretching and winding: oiling the surface of a fiber and carrying out second-grade high-speed stretching with the total stretching multiple being 5.0 to 5.8, carrying out high-temperature loosing thermoforming at 230 DEG C-250 DEG C and carrying out winding for molding in the range of the winding process speed of 2,500-3,000 m / min to prepare a finished product. The fiber for the safe air bag, which is produced by the process, can completely replace a nylon 66 fiber, is used for spinning terylene safe air bag fabrics and greatly reduces the processing cost.
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Description

technical field

[0001] The invention belongs to the field of manufacturing chemical fiber products, in particular to a method for manufacturing polyester industrial yarns for automobile airbags. Background technique

[0002] Car airbags are mainly composed of three parts: identification system (sensor), inflation system (gas generator) and airbag. When a car collides, a pair of sensors installed on the front bumper of the car will identify the impact strength. When the intensity is high, the sensor will send a signal to trigger the propellant in the gas generator, and the resulting high-temperature and high-speed airflow will inflate and expand the originally folded airbag to protect the safety of the passengers. Automobile airbags have good physical and mechanical properties, requiring high strength, light weight, good friction properties, good elasticity, and suitable thermal properties: they should have high melting points and high enthalpy values, which are conducive to ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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