Hydrated Humidity Control Substance Preparation Process

The patent applies parameter changes by hydrating the desiccant material to a specific moisture content before placement in the container. This pre-hydration adjusts the desiccant's equilibrium moisture content parameter, enabling it to maintain a target relative humidity level (e.g., 50% RH) rather than driving humidity to excessively low levels. The desiccant's capacity to adsorb moisture is preserved while its operating point is shifted to achieve the desired humidity range.

The patent transforms the material's functional parameters by controlling its hydration state. The desiccant material is hydrated to a specific moisture content that positions it in an intermediate state between the dry desiccant and fully saturated conditions. This parameter adjustment enables the material to function as both a desiccant (when RH rises above target) and a humectant (when RH falls below target), providing bidirectional humidity control.

The patent replaces the conventional thermal/mechanical hydration system (sealed rooms with controlled humidity and temperature) with a simple liquid addition process. Instead of using energy-intensive environmental control systems to achieve hydration, the method directly adds a calculated amount of liquid water to the desiccant material and allows adsorption to occur at ambient conditions, dramatically reducing energy consumption while maintaining hydration capability.

The patent replaces the slow passive diffusion-based hydration process (relying on water vapor transport in sealed rooms) with an active liquid addition process. By directly introducing liquid water to the desiccant material, the hydration process is accelerated because liquid water provides a much higher water activity and faster mass transfer rate compared to water vapor, significantly reducing processing time.

The patent employs a disposable desiccant packet containing pre-hydrationed desiccant material. The material is hydrated to a controlled moisture content and sealed in a packet that is disposed of after use. This approach eliminates the microbial contamination problem because the desiccant material remains in a controlled state within the sealed packet and does not provide a persistent moist surface for microbial growth, unlike reusable moistened pads.

The patent applies preliminary action by pre-mixing the desiccant material with a liquid binder or dispersant before adding water. This preliminary treatment ensures uniform water distribution and contact across all desiccant particles, preventing localized over-hydration or under-hydration. The pre-mixing step creates a homogeneous matrix that facilitates uniform moisture uptake throughout the entire batch, maintaining manufacturing precision even for large quantities.