Nail Printing Design Image Adjustment for Base Coat Coverage
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Solution Overview
Problem
Existing nail printing technologies using inkjet systems face issues with ink transparency affecting design characteristics due to the underlying nail color, leading to impaired color development and visibility of ground colors through printed designs.
Innovation Solution
A drawing apparatus and method that includes a base coat information detecting section to identify the contour of the base coat region, a design adjusting section to generate an adjusted design image that covers the entire base coat area, and a print head to print the adjusted image on the base coat region, ensuring the design characteristics are not impaired by the nail color.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If inkjet printing is used to print design images on nails, then printing efficiency and automation are improved, but ink transparency causes ground colors to show through, impairing color development and design characteristics
Solution Approach 1:
The patent applies preliminary action by detecting the base coat region contour before printing the design image, and adjusting the design image size in advance to ensure complete coverage. The control unit modifies the design image data beforehand based on the detected base coat area, so that when printing occurs, the design image is already optimized to cover the entire base coat region, preventing ground color visibility and ensuring satisfactory color development.
2Manufacturing precision
If the design image size is increased to cover the entire base coat region, then color development is improved and ground colors are hidden, but the design image may exceed the original design region boundaries
Solution Approach 1:
The patent applies local quality by selectively expanding the design image only in regions where base coat extends beyond the original design boundaries. The control unit detects the actual base coat contour and adjusts the design image size locally to match the base coat region, ensuring complete coverage where needed while maintaining the original design shape and boundaries in areas where the base coat is already contained within the design region.
3Manufacturing precision
If a base coat is applied to prevent ground color visibility, then color development is improved, but the base coat region may not precisely match the design region, requiring additional adjustments
Solution Approach 1:
The patent applies feedback by using the base coat information detecting section to detect the actual base coat region contour, and using this detected information to adjust the design image size. The control unit receives feedback about the base coat boundaries and automatically modifies the design image data accordingly, creating a closed-loop control system that ensures the design image precisely matches the base coat region without requiring manual intervention or complex multi-step adjustments.
Data Source
AI summary
A drawing apparatus detects, as base coat information, a contour of a base coat region which is formed on a surface of a drawing object by applying a first ink used for a base coat on the surface of the drawing object with a drawing tool so as to fill in a design region surrounded with a contour of a design image, before the design image is printed on the surface of the drawing object, and adjusts a size of the design image and generates an adjusted design image which has a size sufficient to cover a whole area of the base coat region, based on the detected base coat information.The drawing apparatus then prints, by a print head, the adjusted design image on the base coat region at a position at which the adjusted design image covers the whole area of the base coat region.