What is the recommended pH range for wool fibers to maintain warranty?

The recommended pH range for wool fibers, which is crucial for maintaining warranty, is between 4.5 and 8.5. This range is important because wool is a natural fiber and has specific pH sensitivity that affects its durability and appearance. A pH that is too acidic (below 4.5) can lead to damage such as weakening of the fibers or causing discoloration, while a pH that is too alkaline (above 8.5) can also result in damage, including a loss of sheen and potential shrinkage. Maintaining the pH within this recommended range ensures that the wool fibers retain their integrity, remain lustrous, and last longer, fulfilling the requirements outlined in many manufacturers' warranties.