Laser Marking Softgel Capsule Sheets Before Encapsulation
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Solution Overview
Problem
Existing methods for laser marking softgel capsules are inefficient and can lead to variable positioning of markings, which may compromise the seal of the capsules and result in potential contamination or failure.
Innovation Solution
Integrating a laser marking system into the softgel capsule manufacturing process, where laser markings are applied to sheets of material before encapsulation, ensuring precise positioning relative to the seals and geometry of the capsules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If laser marking is performed after encapsulation and drying, then the marking can be applied to the finished capsule, but the total manufacturing time becomes extremely significant and positioning precision deteriorates
Solution Approach 1:
The patent applies laser marking to the shell material sheets before the encapsulation process. By performing the marking operation in advance on the flat sheets rather than on the finished 3D capsules, the process eliminates the need for time-consuming post-encapsulation handling and positioning, thereby significantly reducing total manufacturing time while maintaining marking precision.
Solution Approach 2:
The patent separates the marking operation from the encapsulation process by marking the shell sheets independently before they are formed into capsules. This segmentation allows the marking to be performed on a 2D surface where positioning is easier and more precise, rather than attempting to mark the complex 3D capsule geometry after formation.
2Manufacturing precision
If laser marking is performed on finished capsules, then the marking can be applied to the capsule surface, but the marking position becomes highly variable and may compromise the seal integrity
Solution Approach 1:
The patent performs the laser marking operation on the shell sheets before the encapsulation and sealing processes. By marking the flat sheets while they are still in a stable, accessible state, the system ensures precise positioning relative to the eventual seal locations, eliminating the risk of marking variability that would occur if attempted on the finished 3D capsules.
3Adaptability or versatility
If a separate laser marking machine is used after encapsulation, then the marking can be applied to capsules of various shapes, but the alignment difficulty increases and positioning consistency deteriorates
Solution Approach 1:
The patent applies laser marking to the shell material sheets before encapsulation, when the material is in a flat, 2D state. This preliminary marking approach maintains consistency regardless of the final 3D capsule shape because the marking is established on the planar sheet where positioning is straightforward, and the marking naturally follows the material through the forming process.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach allows for consistent and precise laser marking during the manufacturing process, enhancing the integrity of the capsule seals and reducing the risk of contamination or failure.
Implementation Method 1
laser marking on the shell material of a softgel capsule during the manufacturing process
Implementation Method 2
applying a laser marking to a sheet of material of a pair of sheets of material
Data Source
AI summary
A method is provided for applying a laser marking to a sheet of material forming a capsule from portions of the sheet of material using a pair of die rollers wherein the location of the laser marking is established such that it does not overlap at least one of a seal between the pair of sheets of material formed during the formation of the capsule.