| 摘要 |
Apparatus for hydrating and freezing a superabsorbent polymer captured in a web of flexible permeable material comprising a hydration module (11), a freezing module (40), and a conveying means (16,18,32,42). The web or pad is advanced into the hydration module (11), which comprises a dip tank or spray system to provide an adequate supply of hydrating fluid to the superabsorbent polymer. The hydrated web is then conveyed through a freezing chamber (40) having a temperature of -10° Fahrenheit, or lower, where the fluid absorbed within the cells freezes. The small footprint of the modular system means that necessary handling, including cutting into a suitable size and shape, may be accomplished in the consumer's shipping area for placement around perishable materials in shipping containers.
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