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Method for creating virtual three-dimensional patterns in molded bodies

A technology of virtual three-dimensional and three-dimensional patterns, applied in the field of molded products with virtual three-dimensional patterns, can solve problems such as uneconomical use and complex production of large-scale products

Inactive Publication Date: 2018-08-03
MERCK PATENT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of method is much too complex for the production of high-volume articles to be used economically
[0008] Furthermore, using the methods mentioned above, only moldings consisting mainly of polymer plastics can be produced
The method is not suitable for the manufacture of composite moldings which, in addition to the plastic components, also consist of other materials, such as metals, in a non-negligible proportion by weight

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0107] In a prior process step, injection molding is made of ABS with a carbon black content of 0.2% by weight based on the weight of the plastic ( GP-22, product from the company BASF SE) with dimensions 100 x 150 mm and 10 mm thickness. One of the main surfaces of the plastic plate is provided with a marking measuring approximately 30 x 45 mm by laser ablation with the aid of a laser device (Trumpf, Vectormark compact). The logo has various indentations, each having a depth of approximately 100-150 μm.

[0108] Films made by injection molding (SAN 358N, product from BASF SE company), which has 1.5% by weight of T10-09 Pacific Twinkle (SiO-based 2 Substrate flake-form effect pigments, particle size 20-200 μm, product from the company Merck KGaA) and a content of 0.2% by weight of PV Fast Blue B2G01 (product from Clariant International Ltd.), which has a thickness of approximately 800 μm.

[0109] A Kraus-Maffei CX-130-380 injection molding machine was used. The prefab...

Embodiment 2

[0113] The PP preform ( HM 648T, a product from the company LyondellBasell, NL), which has a carbon black content of 0.2% by weight, based on the weight of the plastic. The bottle cap has a three-dimensional zigzag structure with a diameter of approximately 30 mm on its outer surface (cap).

[0114] Production of flake-shaped effect pigments with 2% by weight by means of extrusion ( 4504, particle size 5-50 μm, product from Merck KGaA company) content with 400 μm thickness through colored film ( HM 648T, a product from LyondellBasell, NL). The film was cut to provide a circle with a diameter of 44mm.

[0115] An Arburg Allrounder 320M injection molding machine was used. The preform was placed in a mold insert (outer diameter 48.2 mm) in the inner surface of the injection mold such that the contoured preform surface faced the cavity of the injection mold. The likewise prefabricated film body-colored with effect pigments is then fixed in the inner cavity of the injection...

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Abstract

The present invention relates to a method for creating virtual three-dimensional patterns in molded bodies, in particular an injection-molding method for producing molded bodies with a virtual three-dimensional pattern, said pattern being formed by platelet-shaped effect pigments. The invention also relates to the molded bodies produced by this method and to their use, in particular for decorativepurposes.

Description

technical field [0001] The invention relates to a method for producing a virtual three-dimensional pattern in a molded article, preferably a plastic molded article, in particular an injection molding method for producing a molded article having a virtual three-dimensional pattern formed of flake-form effect pigments on at least one of its surfaces, with such Types of moldings with virtual three-dimensional patterns, and uses thereof. Background technique [0002] Decorative three-dimensional patterns on plastic articles are known and have been used for a long time. They provide the article with a unique appearance that exhibits depth and differs in an advantageous manner from conventional patterning. The molding or film is often embossed or otherwise structured on at least one surface thereof to ultimately have a three-dimensional pattern. In order to achieve specific optical effects, both moldings and films are frequently assembled in multilayers and embossed in the layer...

Claims

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Application Information

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IPC IPC(8): B29C45/14B44C5/04B44F1/04B44F7/00
CPCB29C45/14688B29C45/1671B29C2045/1454B29C2045/1673B29K2995/002B29K2995/0025B29K2995/0026B29L2031/722B44C1/10B44C5/0453B44F7/00
Inventor M·舒姆
Owner MERCK PATENT GMBH