Bottle cap marking method through fiber laser and bottle cap manufactured through method

A fiber laser and laser marking technology, which is applied in the field of bottle caps, can solve problems such as fuzzy QR codes, unrecognizable QR codes, and inability to mark QR codes in bottle caps.

Active Publication Date: 2017-05-31
DONG GUAN JIN FU IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In order not to affect the taste of the drink, the two-dimensional code in the prior art is forced to be marked only on the outer surface of the bottle cap
In some cases, it is necessary to mark the QR code in the bottle cap. For example, during the transportation of the drink, the QR code on the bottle cap may be worn and blurred, so that it cannot be recognized, or when the drink is to participate in a lucky draw
[0013] Based on the problem in the prior art that the two-dimensional code cannot be marked in the bottle cap due to the presence of irritating odor, there is no relevant solution yet

Method used

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  • Bottle cap marking method through fiber laser and bottle cap manufactured through method
  • Bottle cap marking method through fiber laser and bottle cap manufactured through method
  • Bottle cap marking method through fiber laser and bottle cap manufactured through method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] The method for marking bottle caps with fiber laser in an embodiment of the present invention uses infrared fiber lasers to mark the bottle caps. The specific method includes the following steps:

[0058] Masterbatch preparation steps: dry blending thermoplastics, additives and laser additives in a high-speed mixer, and then put them in a twin-screw extruder through melt extrusion, cooling, and pelletizing to make a masterbatch. The first zone temperature is 170℃, the second zone is 190℃, the third zone is 215℃, the fourth zone is 220℃, and the fifth zone is 215℃. The residence time in each zone is 1 to 2 minutes, and the pressure is 15Mpa; of course, double The screw extruder can also be replaced by a single-screw extruder or a multi-screw extruder, and the high-speed mixer can also be replaced by a low-speed mixer, which is not specifically limited in this embodiment.

[0059] Bottle cap preparation step: put the masterbatch prepared in the masterbatch preparation step int...

Embodiment 2

[0063] The method for marking bottle caps with fiber laser in an embodiment of the present invention uses infrared fiber lasers to mark the bottle caps. The specific method includes the following steps:

[0064] Masterbatch preparation steps: dry blending thermoplastics, additives and laser additives in a high-speed mixer, and then put them in a twin-screw extruder through melt extrusion, cooling, and pelletizing to make a masterbatch. The temperature in zone one is 170℃, zone two is 190℃, zone three is 215℃, zone four is 220℃, zone five is 215℃, the residence time in each zone is 1-2 minutes, and the pressure is 15Mpa;

[0065] Bottle cap preparation step: put the masterbatch prepared in the masterbatch preparation step into a compression molding equipment that has been equipped with a special mold for bottle cap manufacturing to perform compression molding, to obtain a bottle cap to be laser marked;

[0066] Laser marking step: focusing the infrared fiber laser on the bottle cap to...

Embodiment 3

[0069] The method for marking bottle caps with fiber laser in an embodiment of the present invention uses infrared fiber lasers to mark the bottle caps. The specific method includes the following steps:

[0070] Masterbatch preparation steps: dry blending thermoplastics, additives and laser additives in a high-speed mixer, and then put them in a twin-screw extruder through melt extrusion, cooling, and pelletizing to make a masterbatch. The temperature in zone one is 170℃, zone two is 190℃, zone three is 215℃, zone four is 220℃, zone five is 215℃, the residence time in each zone is 1-2 minutes, and the pressure is 15Mpa;

[0071] Bottle cap preparation step: put the masterbatch prepared in the masterbatch preparation step into a compression molding equipment that has been equipped with a special mold for bottle cap manufacturing to perform compression molding, to obtain a bottle cap to be laser marked;

[0072] Laser marking step: focusing the infrared fiber laser on the bottle cap to...

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Abstract

The invention relates to the technical field of bottle caps, in particular to a bottle cap marking method through a fiber laser and a bottle cap manufactured through the method. According to the bottle cap marking method through the fiber laser, the bottle cap is identified through an infrared fiber laser device; and compared with the prior art that the bottle cap is identified through an ultraviolet laser device, the output wave length of the infrared fiber laser device is located at an infrared band, and the problem that an existing bottle cap is easy to absorb ultraviolet band light emitted by the ultraviolet laser device, and pungent smell is generated due to the fact that the bottle cap absorbs the ultraviolet band light is solved. According to the bottle cap manufactured through the method, the content of released normal octane, normal decane, normal dodecane, normal tetradecane and aldehyde matter is remarkably decreased, and consequently, the pungent smell is remarkably reduced.

Description

Technical field [0001] The invention relates to the technical field of bottle caps, and in particular to a method for marking bottle caps by fiber laser and a bottle cap made by the method. Background technique [0002] In the prior art, the main methods for marking the QR code on the bottle cap are as follows: [0003] (1) Carbonization method of organic substrate [0004] See patent CN201080011931, the carbonization method of organic matrix is ​​currently the most commonly used process. The carbonization method of the organic matrix realizes carbonization by absorbing the laser radiation energy by the organic matrix itself or by absorbing the laser radiation by the absorbent added into the organic matrix. In both cases, the carbonization of the polymer material is achieved by the short thermal shock of burning the organic matrix. Among them, the ability of the matrix to sufficiently form carbon during burning is critical to the marking result. [0005] (2) Laser bubbling method ...

Claims

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Application Information

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IPC IPC(8): B29D99/00B41M5/00C08L23/12C08K3/34C08K5/544C08L23/06C08K5/09C08K3/22C08L55/02C08L23/08C08K3/04
CPCB29C2037/80B29D99/0096B41M5/0064C08K3/22C08K3/34C08K5/09C08K5/544C08K2003/2231C08L55/02C08L2207/062C08L23/12C08L23/06C08L23/0815C08K3/04
Inventor 陈金培
Owner DONG GUAN JIN FU IND CO LTD
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