Printing system and estimation method
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Solution Overview
Problem
Pretreatment liquids used in fabric printing can deteriorate over time, leading to inconsistent rubbing fastness and requiring users to replace them frequently, which is inconvenient.
Innovation Solution
A printing system with a pretreatment unit, storage unit, and control unit that includes an acquisition and estimation module to assess the freshness of the pretreatment liquid based on a data table, ensuring optimal rubbing fastness by determining the appropriate time to use the liquid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If the pretreatment liquid is used for a long time, then the operation duration is extended, but the rubbing fastness deteriorates
Solution Approach 1:
The system performs preliminary estimation of rubbing fastness based on the elapsed time since manufacture of the pretreatment liquid, before actual printing occurs. This allows prediction of quality outcomes in advance, enabling users to replace the liquid proactively before rubbing fastness deteriorates below acceptable levels.
Solution Approach 2:
The system establishes a feedback mechanism where the elapsed time information is continuously monitored and fed back to the estimation unit. This feedback loop enables dynamic assessment of pretreatment liquid quality based on its age, allowing the system to adapt and provide accurate predictions of rubbing fastness at any given time point.
2Reliability
If the pretreatment liquid is replaced frequently, then the rubbing fastness is maintained, but the operation complexity increases
Solution Approach 1:
The system performs self-assessment of the pretreatment liquid's condition by automatically calculating elapsed time and estimating rubbing fastness without requiring manual testing or user judgment. This self-service capability provides objective, data-driven recommendations for replacement timing, simplifying the user's decision-making process.
Solution Approach 2:
By estimating rubbing fastness in advance based on elapsed time, the system enables users to plan replacements proactively rather than reactively. This preliminary assessment prevents quality deterioration while avoiding unnecessary replacements, optimizing the replacement schedule.
3Duration of action of stationary object
If the pretreatment liquid is used beyond its optimal freshness, then the usage time is extended, but the printing quality deteriorates
Solution Approach 1:
The system continuously monitors the elapsed time and provides feedback on the current rubbing fastness level, enabling users to understand the real-time quality status of the pretreatment liquid. This feedback ensures printing quality is maintained by alerting users before quality deterioration occurs.
Solution Approach 2:
The system performs preliminary quality assessment based on elapsed time before actual printing operations. This advance estimation prevents quality deterioration by providing early warning, allowing users to replace the liquid before it affects printing precision.
Data Source
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AI summary
A printing system (10) includes a pretreatment unit (25) that applies a pretreatment liquid to a fabric, a printing unit (21) that ejects a printing liquid to the fabric to which the pretreatment liquid was applied, a storage unit (41) that stores a data table (T1) indicating a correspondence relationship between a time elapsed from manufacture of the pretreatment liquid and a rubbing fastness of the fabric on which the pretreatment liquid was used, and a control unit (42). The control unit (42) includes an acquisition unit (43) that acquires freshness information regarding freshness of the pretreatment liquid to be applied by the pretreatment unit (25) and use date information indicating a time to use the pretreatment liquid, and an estimation unit (44) that outputs, based on the freshness information, the use date information, and the data table, an estimation level of the rubbing fastness to be obtained by using the pretreatment liquid at the time indicated by the use date information.