Manufacturing technique of label in mold

Abstract

The invention discloses a manufacture process for labels in dies, comprising the steps as follows: a) printing the justification sheets such as patterns of products, justification positioning hole and a unit positioning hole; b) punching corresponding justification positioning hole on the sheets; c) die-cutting the unit positioning hole and the label shape required to be formed by a die cutter; d) forming a label with a certain three-dimensional shapes on a forming die; e) processing the final product by the injection molding. The manufacture process of the invention has the beneficial effects of overcoming the defects in the prior art such as large consumption of leftover material, easily appeared pressing marks on the edges, rupture and colour difference appearing on the curved surface, low efficiency, and the like, changes the type of the prior art that a label is singly positioned, realizes the effects that a plurality of labels commonly use the positioning hole and a plurality of labels are formed once, improves the performance of the product and reduces the production cost.

Description

technical field [0001] The invention relates to an IML (In Mold Label) manufacturing process. Background technique [0002] IML technology is a label that uses hot-melt solid adhesive to bond with the surface of the plastic bottle when making the bottle, and combines it with the bottle in the mold. The biggest feature of using in-mold label plastic bottles is that the label and the bottle body are on the same surface, it feels like there is no label, and the color pattern is directly printed on the surface of the bottle body. [0003] The basic process of traditional in-mold label production is printing-molding-die-cutting-injection molding. The disadvantages of this process mainly include: [0004] 1. The process of "forming first and then punching" is adopted. In order to ensure the production accuracy of the product, only a single product can be punched each time. Therefore, each punched product needs to be positioned with a positioning hole, and the positioning hole is ...

AI Technical Summary

Problems solved by technology

[0006] 3. The process of "forming first and then punching" is adopted. When punching, the 3D product after forming (the product is relatively large) is cut out to the required shape. In order to ensure the accuracy of the product, only one product can be punched at a time. relatively low efficiency

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