A light-weight sunshade and its production process

Abstract

The invention belongs to the technical field of sun shades, and relates to a light sun shade and a production process thereof. The production process comprises the following steps: a material selecting step in which a one-piece sheet which is formed by gluing an aluminum film layer, a bubble film layer and an aluminum film layer in sequence from top to bottom is made or selected; a cutting step in which the selected sheet is cut into the outer contour of an unfolded sun shade; a press-forming step in which a plurality of longitudinal or transverse spaced folding lines are press-formed by a welder, wherein the bubble film at the folding lines is welded into a soft flake layer; a trimming step in which effluent on the annular edge during welding is trimmed or an irregular unwanted part is cut out; and a step in which packaging is carried out to form a light sun shade product. The light sun shade of the invention has the advantages of being simple in production process, high in production efficiency, low in production cost, light, easy to fold, easy to store, low in overall cost, and suitable for vehicle glasses.

Description

technical field [0001] The invention belongs to the technical field of sunshades, in particular to a lightweight sunshade and its production process. Background technique [0002] At present, most of the sunshades for vehicles use the heat insulation layer in the middle and the sheets of the upper and lower surface layers through cutting, sewing, hemming, hot extrusion, and packaging to form sunshades for vehicle glass. The disadvantages are: One is that the sewing and hemming process takes a lot of manpower, the labor intensity is high, and the production efficiency is low; the other is that most of the selected materials are complex in structure. It is formed by bonding the heat-insulating layer in the middle and the sheets of the upper and lower surface layers. The upper and lower surface layers are coated with aluminum reflective layers on the film. The heat-insulating layer is made of bubble-type polyethylene or polypropylene and foamed polypropylene. or the heat insul...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the sunshades for vehicles use the heat insulation layer in the middle and the sheets of the upper and lower surface layers through cutting, sewing, hemming, hot extrusion, and packaging to form sunshades for vehicle glass. The disadvantages are: One is that the sewing and hemming process takes a lot of manpower, the labor intensity is high, and the production efficiency is low; the other is that most of the selected materials are complex in structure. It is formed by bonding the heat-insulating layer in the middle and the sheets of the upper and lower surface layers. The upper and lower surface layers are coated with aluminum reflective layers on the film. The heat-insulating layer is made of bubble-type polyethylene or polypropylene and foamed polypropylene. or the heat insulation layer is formed by laminating cardboard with polyethylene or polypropylene air bubble film. The structure of the heat insulation layer is complex, the thickness and weight are large, and the cost is high. Difficult to store in a small limited space

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