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Injection molding production technique of IML (In Mold Labelling) ultrathin workpieces

A production process and technology for ultra-thin parts, applied in the field of IML ultra-thin part injection molding production process, can solve the problem of inability to form products with qualified thickness, and achieve the effect of solving the problems of concave deformation and flatness

Active Publication Date: 2013-01-02
通达(石狮)科技有限公司
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  • Abstract
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Problems solved by technology

[0006] The purpose of the present invention is to provide an IML ultra-thin injection molding production process to solve the problem that the existing IML process cannot form qualified products with a thickness below 1.20mm during injection molding

Method used

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  • Injection molding production technique of IML (In Mold Labelling) ultrathin workpieces

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Embodiment Construction

[0013] In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific examples.

[0014] Such as figure 1 Shown, a kind of IML ultra-thin part injection molding production technique that the present invention relates to, it comprises the steps:

[0015] S100: Fill the injection cavity to the full under the high injection pressure ranging from 180MPa to 240MPa;

[0016] S200: Immediately switch to high holding pressure for 0.2s to 0.6s;

[0017] S300: Then switch to low holding pressure and last for 2s to 4s.

[0018] Preferably, in step S200, the pressure of the high holding pressure is in the range of 170MPa to 190MPa; and in step S300, the pressure of the low holding pressure is in the range of 40MPa to 65MPa.

[0019] In step S100, if the injection pressure is less than 180MPa, the fluidity of the injection molding liquid will become poor at this time, so that the flatness of the forme...

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Abstract

The invention discloses an injection molding production technique of IML (In Mold Labelling) ultrathin workpieces, and the technique comprises the following steps: fulfilling an injection molding die cavity at a high injection pressure of 180-240MPa, immediately performing high pressure maintaining on the injection molding die cavity for 0.2-0.6s, transferring to low pressure maintaining operation and keeping for 2-4s. Compared with the prior art, the injection molding production technique disclosed by the invention overcomes the technology prejudice of immediately performing high pressure maintaining for 0.2-0.6s after fulfilling the injection molding die cavity and transferring to the low pressure maintaining operation for 2-4s, so that the concave deformation and smoothness problems of the IML products can be solved when forming IML products smaller than 1.0mm, and qualified IML products are formed.

Description

technical field [0001] The invention relates to the field of injection molding technology, in particular to an injection molding production technology of IML ultra-thin parts. Background technique [0002] The IML process is to print the Film film through the forming machine for forming, and then cut it and place it in the injection mold to produce it, that is, the in-mold insert injection molding. The Film film is generally divided into three layers: base material, ink layer and adhesive material. After the injection molding is completed, the Film film and the plastic are closely integrated through the adhesion of the adhesive material. layer, so it has the effect of wear resistance and scratch resistance. [0003] In the existing IML process, when the thickness of the IML accessory module is less than 1.20mm, it will be difficult to glue, ink, flatness, deformation, and concave. Thickness above 1.20mm. [0004] However, with the increasingly fierce market competition an...

Claims

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Application Information

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IPC IPC(8): B29C45/14B29C45/76
Inventor 王亚榆李明朗
Owner 通达(石狮)科技有限公司
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