One-Pass Fabric Inkjet Printing with Pre-Humidified Surfaces

The patent applies preliminary action by pre-humidifying the recording medium before inkjet recording. This preliminary treatment ensures uniform wetting of the medium, which prevents ink from spreading unevenly during the one-pass recording process. The pre-humidification creates consistent absorption conditions across the entire recording area, thereby maintaining image definition while enabling high-speed one-pass printing.

The patent changes the physical parameter of the recording medium by controlling its humidity level before ink application. By pre-humidifying the medium to a specific moisture content, the patent ensures that all areas of the medium have identical wetting properties. This parameter control prevents edge effects and ensures uniform ink penetration, thereby maintaining both reliable ink absorption and high image definition.

The patent precisely controls the humidity parameter of the recording medium, applying only the necessary amount of moisture to prevent ink spread. By optimizing the pre-humidification level, the patent achieves uniform ink absorption without excessive wetting. This controlled parameter approach ensures both sharp image edges and sufficient ink concentration for adequate image density.