Platen Pretreatment Control for Uniform Cloth Agent Application
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Solution Overview
Problem
Existing recording devices face challenges in adjusting the application region and amount of pretreatment agent on cloths due to fixed conveyance speed and spray duty ratio, which can lead to inadequate pretreatment time or uneven application.
Innovation Solution
A pretreatment device with a platen, guide, spray, input portion, and processor that adjusts conveyance speed and spray duty ratio based on user input to optimize pretreatment agent application on recording media.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the conveyance speed of the platen and spray duty ratio are kept constant, then the device structure is simple and easy to operate, but the application amount and uniformity of the pretreatment agent cannot be adjusted for different cloths
Solution Approach 1:
The patent implements dynamic adjustment of conveyance speed and spray duty ratio based on cloth type detection. The control unit modifies operational parameters in real-time according to the detected cloth characteristics, transforming a static system into a dynamic one that adapts to different materials, thereby resolving the contradiction between adaptability and complexity.
Solution Approach 2:
The patent changes physical parameters (conveyance speed and spray duty ratio) based on detected cloth properties. By adjusting these parameters dynamically, the system achieves adaptability to different cloth types without requiring complete structural redesign, balancing versatility with controlled complexity.
2Productivity
If the conveyance speed is increased to shorten pretreatment time, then productivity improves, but the application amount of pretreatment agent decreases
Solution Approach 1:
The patent simultaneously adjusts conveyance speed and spray duty ratio to maintain optimal application amount while improving productivity. When conveyance speed increases, the spray duty ratio is also increased to compensate, ensuring that the total amount of pretreatment agent applied remains sufficient even at higher speeds.
Solution Approach 2:
The patent uses periodic spray action with variable duty ratio to control the application amount. By adjusting the proportion of time the spray is active during each cycle, the system can maintain adequate application amounts even when the overall pretreatment time is reduced through faster conveyance.
3Quantity of substance
If the spray duty ratio is increased to apply more pretreatment agent, then the application amount improves, but the pretreatment time increases
Solution Approach 1:
The patent adjusts both conveyance speed and spray duty ratio in combination. By increasing conveyance speed while optimizing spray duty ratio, the system achieves sufficient application amounts without proportionally increasing pretreatment time, as the faster movement compensates for the spray timing adjustments.
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
The device allows for customizable pretreatment times and application amounts, improving color development quality and image fixing on cloths by ensuring uniform application of pretreatment agents.
Implementation Method 1
a spray head that sprays a pretreatment agent
Data Source
AI summary
A pretreatment device includes a platen, guide that guide a conveyance of the platen from a set position at which a recorded medium is set on an upper surface, a spray that sprays a pretreatment agent onto the recording medium set on an upper surface of the platen, an input portion into which is input at least one of an application range of the pretreatment agent onto the recording medium or an application amount of the pretreatment agent, a processor; and a memory storing computer-readable instructions. The computer-readable instructions also includes setting, on the basis of at least one of the application range or the application amount input into the input portion, at least one of a conveyance speed of the platen or a spray duty ratio that is a ratio of a spray time during a spray period of the pretreatment agent.