Nail Drawing Apparatus Ink Drying Control
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Solution Overview
Problem
Conventional nail printing technologies face challenges in preventing ink blurring due to the slow drying time of nail ink, which limits the efficiency of drawing multiple nails as the ink from different colors often mixes at the boundaries, requiring extended waiting times for each color to dry before application.
Innovation Solution
A drawing apparatus and method that includes a control unit to assess the drying status of ink on nails and prioritize drawing on non-dried or non-applied regions, ensuring that only dry regions are used for subsequent color application, thereby minimizing ink mixing and reducing overall drawing time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If ink is applied to multiple unit regions on nails with different colors, then the design coverage is improved, but the image blurs and color mixes at the boundaries due to slow drying time
Solution Approach 1:
The nail surface is divided into multiple unit regions, and the drawing process is segmented into multiple passes. In each pass, only unit regions that are not adjacent to non-dried regions are selected for drawing. This segmentation approach allows comprehensive coverage of the nail surface while preventing ink mixing at boundaries by strategically selecting which regions to draw in each pass.
2Manufacturing precision
If waiting time for ink drying is increased to prevent blurring, then the image clarity is improved, but the total drawing time increases significantly
Solution Approach 1:
Before applying ink to a unit region, the system preliminarily determines whether adjacent regions have dried ink by checking the drying status. This preliminary check prevents ink mixing by identifying safe drawing regions in advance, allowing the drawing process to proceed without unnecessary waiting time while still ensuring image clarity.
Solution Approach 2:
The drawing process maintains continuity by systematically selecting and drawing on eligible unit regions without interruption. Instead of waiting for complete drying of all regions, the system continuously draws on regions that meet the drying criteria, maximizing productivity while preventing ink mixing through intelligent region selection.
3Speed
If conventional ink-jet drawing apparatus is used for nail printing, then the printing speed is improved, but the ink with large particle sizes cannot be ejected properly
Solution Approach 1:
The patent replaces the ink-jet mechanical ejection system with a plotter-based mechanical drawing system. Instead of ejecting ink through nozzles, the plotter uses a writing tool that mechanically contacts the nail surface to apply ink. This substitution enables the use of inks with large particle sizes that cannot be properly ejected by conventional ink-jet mechanisms, while still maintaining efficient drawing capability.
Data Source
AI summary
A drawing apparatus and drawing method to perform drawing on a drawing target region are shown. The drawing apparatus includes a drawing unit and a control unit. The drawing target region is a surface of a plurality of nails and the nails include unit regions in contact with each other to be drawn with ink in different colors. The control unit includes a nail specifying unit which judges whether each of the unit regions is a dried unit region, a non-dried unit region, and a non-drawn unit region. Then, the nail specifying unit extracts the non-drawn unit region which is not in contact with the non-dried unit region as a specific unit region. The control unit also includes a drawing control unit which controls the drawing unit to perform the drawing on the specific unit region.