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Method for manufacturing colorful multilayer sheets

A multi-layer sheet, color technology, applied in chemical instruments and methods, layered products, synthetic resin layered products, etc. Good grip and friction effect

Inactive Publication Date: 2013-05-08
朴喜大
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the delayed evaporation of solvents like DMF or MEK can cause the multi-layer sheet to harden and become a hard texture like plastic

Method used

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  • Method for manufacturing colorful multilayer sheets
  • Method for manufacturing colorful multilayer sheets
  • Method for manufacturing colorful multilayer sheets

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] The ingredients of the masterbatch described in the table were put into the cavities, and the hot-melt adhesive waste and the above-mentioned polyvinyl resin were put into the other cavities respectively. The materials in each cavity are extruded at the same time by the conventional co-extrusion method, and the color multi-layer sheet with a three-layer structure is prepared by embossing rollers.

[0054] The color multi-layer sheet prepared by the above method in the present invention has the following properties: figure 1 The three-layer structure shown includes a bottom layer composed of a PE release layer, a hot melt adhesive layer formed on the PE release layer, and an embossed TPU layer on the hot melt adhesive layer. The hot melt adhesive layer is 200 microns thick, while the TPU layer is 150 to 200 microns thick.

[0055] Where the masterbatches in Table 2 were used instead of those in Table 1, the PE release layer and the hotmelt The subbing layer was formed ...

Embodiment 2

[0057] The colored multilayer sheet prepared in Example 1 having a PE release layer, a hot melt adhesive layer, and an embossed TPU layer was combined with PU through a conventional lamination method. Here, the PU is preferably multi-colored, but may also be monochromatic in some cases.

[0058] In other words, when the PU as figure 2 Laminated on the surface of the embossed TPU layer, the embossed portion of the TPU layer is pressed down to increase the bonding area and thus provide a bond between the TPU layer and the PU. Strong adhesion.

[0059] In this way, the PE release layer, the hot melt adhesive layer, the TPU layer, and the PU skin layer form a complete multi-color sheet of the present invention in order from bottom to top.

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Abstract

The invention discloses a method for manufacturing colorful multilayer sheets. The method does not use tacky adhesions, concretely the tacky adhesions containing DMF or MEK solvents, during the manufacturing of mono-color or multicolor multilayer sheets used for vamps, thereby preventing formation of bubbles in the sheet materials and creases in sheet layers, and improving road holding of frictional forces. The method further comprises embossing appearance designs such as patterns on surfaces of thermoplastic polyurethane so as to improve adhesion stress of a TPU layer and a PU layer, thereby preventing the PU layer from separating from a hot melt adhesive layer.

Description

technical field [0001] The present invention relates to a method of manufacturing a colored multilayer sheet for shoe uppers, and in particular, the present invention relates to a method of manufacturing a colored multilayer sheet that can provide environmentally friendly, non-use hot melt adhesive Layers and polyurethane (PU) skin layers are bonded together with a tacky adhesive solvent - such as dimethylformamide (DMF) or methyl ethyl ketone (MEK) - multi-layer sheet, also includes thermoplastic The surface of the polyurethane (TPU) layer is embossed to improve the adhesion between the TPU layer and the PU skin layer. Background technique [0002] Shoes include outsole, midsole, insole and upper in order from bottom to top. The outsole has an anti-skid function, while the midsole is used for shock absorption. The insole comforts the foot and provides additional shock absorption. The upper protects the entire foot and allows the shoe to wrap the foot properly. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B32B27/40B29C59/04
Inventor 朴喜大
Owner 朴喜大
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