In-mould heat transfer film of elastic toy ball and production method of in-mould heat transfer film

Abstract

The invention discloses an in-mould heat transfer film of an elastic toy ball and a production method of the in-mould heat transfer film. The in-mould heat transfer film is characterized by structurally comprising a PVC film which is taken as a film base layer as well as a release layer which takes a wax material as a main component, a printing coating which takes a resin material as a main component, and a transfer printing ink layer, wherein the release layer, the printing coating and the transfer printing ink layer are sequentially arranged on the upper surface of the film base layer. The production method of the in-mould heat transfer film comprises the following steps of (a) preparing a release agent; (b) preparing printing coating; (c) preparing transfer printing ink; (d) coating; and (e), conducting printing with transfer printing ink. Compared with an existing production method, the production method disclosed by the invention is simple and convenient in process, is low in equipment requirement, is easily realized in production and does not need to compound a layer of PE film on the PVC film, so that production cost of the heat transfer film is reduced, PVC film waste subjected to in-mould transfer printing is recycled, and a great deal of plastic waste which is difficultly treated is prevented from being generated.

Description

technical field [0001] The invention relates to the technical field of in-mold heat transfer printing, in particular to an in-mold heat transfer film for an elastic toy ball and a production method thereof. Background technique [0002] In-mold thermal transfer printing is a process in which molding and decorative printing are carried out simultaneously. By decorating the plastic parts during the molding process, the operation steps such as decoration after traditional molding and online production inventory are reduced, thereby reducing production costs. In this process, the thermal transfer film is introduced into the mold through the transfer unit. After the mold is closed, the thermal transfer film is pressed into the mold cavity by the injected mold filling material. The temperature and molding pressure in the cavity change the decorative layer from the thermal transfer to Peel off the printed film carrier and combine it with the plastic part. After the mold cools down...

AI Technical Summary

Problems solved by technology

However, this method also has the following disadvantages. Since a layer of PE film needs to be laminated on the PVC film in advance, the production cost of the thermal transfer film is greatly increased. In addition, after the PVC film and the PE film are compounded, the film waste after transfer is difficult Recycling produces a large amount of plastic waste that is difficult to dispose of

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