Master batch with function of plastic laser marking

A technology of laser marking and functional masterbatch, applied in the field of laser marking, can solve the problem that polyolefin plastics cannot be marked by laser, and achieve the effect of excellent marking effect, easy use and operation, and obvious background color contrast.

Active Publication Date: 2010-12-29
HENAN THB ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the existing polyolefin plastics cannot be marked by laser. It provides a plastic laser marking functional masterbatch, which is mechanically mixed with plastic particles before injection molding, so that Clear white patterns or writings are produced on the surface of black PP plastics, and the physical properties of the material itself will not change after the reaction, thus obtaining black PP plastics suitable for laser marking

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Plastic laser marking functional masterbatch, which is prepared from the following components by weight percentage:

[0021] Photosensitizer: Photosensitizer LS 10%

[0022] White Pigment: Mica 24%

[0023] Black Pigment: Carbon Black 46.5%

[0024] Organic polymer carrier: polyethylene 53.5%.

[0025] The above components are fully mixed, extruded and granulated by a twin-screw extruder to obtain the plastic laser marking functional masterbatch of the present invention.

Embodiment 2

[0027] Plastic laser marking functional masterbatch, which is prepared from the following components by weight percentage:

[0028] Photosensitizer: Photosensitizer LS 10%

[0029] White Pigment: Calcium Carbonate 15%

[0030] Black Pigment: Carbon Black 25%

[0031] Organic polymer carrier: polypropylene 50%.

[0032] The above components are fully mixed, extruded and granulated by a twin-screw extruder to obtain the plastic laser marking functional masterbatch of the present invention.

Embodiment 3

[0034] Plastic laser marking functional masterbatch, which is prepared from the following components by weight percentage:

[0035] Photosensitizer: Photosensitizer LS 20%

[0036] White Pigment: Barium Sulfate 5%

[0037] Titanium dioxide 5%

[0038] Black Pigment: Carbon Black 30%

[0039] Organic polymer carrier: polyethyl acrylate 40%.

[0040] The above components are fully mixed, extruded and granulated by a twin-screw extruder to obtain the plastic laser marking functional masterbatch of the present invention.

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Abstract

The invention relates to a master batch with the function of plastic laser marking, belonging to the field of laser marking technology. The master batch is prepared by the following components by weight percent: 10-25% of photosensitizer, 10-15% of white pigment, 20-30% of black pigment and 38.5-53.5% of organic polymer carrier. Before being formed by injection molding, the master batch is evenlymixed with plastic particles in a mechanical way, so that clear white pattern or handwriting can be generated on the surface of black PP type plastics, the self physical property of the material is not changed after the reaction, and the black PP type plastics which is suitable for laser marking can be obtained.

Description

technical field [0001] The invention belongs to the technical field of laser marking, and in particular relates to a plastic laser marking functional masterbatch. Background technique [0002] Laser marking is a new processing technology developed after laser welding, laser heat treatment, laser cutting, laser drilling and other application technologies. It is a new marking process without contact, pollution and wear. In recent years, with the improvement of the reliability and practicability of lasers, coupled with the rapid development of computer technology and the improvement of optical devices, the development of laser marking technology has been promoted. [0003] Laser marking is a marking method that uses a high-energy-density laser beam to act on a target to cause physical or chemical changes on the target surface, thereby obtaining a visible pattern. The high-energy laser beam is focused on the surface of the material, causing the material to vaporize rapidly and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/24
Inventor 杜金奎左海青
Owner HENAN THB ELECTRIC
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