Preparation technology for edge-sealing strip subjected to co-extrusion molding

Abstract

The invention relates to the technical field of preparation of edge-sealing strips, and concretely relates to a preparation technology for an edge-sealing strip subjected to co-extrusion molding. The preparation technology comprises the following technological steps: step A, performing co-extrusion on a substrate-layer raw material and a hot-melt-adhesive-layer raw material possessing a same color, so as to prepare the edge-sealing strip possessing the substrate layer and the hot-melt-adhesive layer; B, cooling and curing the edge-sealing strip; and C, for usage, using hot wind or a hot gas or laser to melt the hot-melt-adhesive layer of the edge-sealing strip, so as to enable the face of the edge-sealing strip, which possesses the hot-melt-adhesive layer, to be adhered to a product to be subjected to edge sealing. The adhesive force of the hot-melt-adhesive layer is high, and degumming phenomenon is avoided. By employing hot wind or the hot gas or laser for melting the hot-melt-adhesive layer, edge sealing is performed. Seamless connection between the edge-sealing strip and a product to be subjected to edge sealing, such as medium density fiberboards, shaving boards, plywood and other artificial plates, is realized, and a hot melt adhesive is not needed for coating, so that a production process of coating a hot melt adhesive is saved, the product quality and the production efficiency are substantially improved, the production and application cost is reduced, and the preparation technology is relatively suitable for industrialized production.

Description

technical field [0001] The invention relates to the technical field of edge banding preparation, in particular to a preparation process of co-extruded edge banding. Background technique [0002] Edge banding is a material for protecting, decorating and beautifying the section of furniture panels. Its main function is to seal the section of the panel so as to prevent the panel from being damaged by the environment and unfavorable factors during use. Unique color and texture design and other decorations make the applied furniture panel products more textured and three-dimensional. [0003] At present, the edge banding strips used for edge banding in the furniture industry mainly include wood, paper, plastic and other materials. There are wooden strips and veneers for wooden edge banding. The edge banding is made of processed wooden materials. The advantage is that it is more convenient to glue and process, but the source of materials is limited, the cost is high, and the colo...

AI Technical Summary

Problems solved by technology

When the existing edge banding is coated with hot melt adhesive, it is necessary to apply the treatment agent first, and then apply the hot melt adhesive. There is a gap between the base material layer of the edge banding and the hot melt adhesive, resulting in a layered structure. The phenomenon of wasting hot melt adhesive often occurs in the process, and it is necessary to change the color of hot melt adhesive when coating edge strips of different colors, which increases the production process and reduces production efficiency