Velcro strips or tape are readily available, but not always inexpensive. And many devices, articles of clothing and household fabric products close with Velcro attachments. Over time, Velcro may lose its gripping power as lint and thread become embedded in the material. Before you replace Velcro fasteners on clothing or other items, however, first try reviving it. Sometimes a simple cleaning will restore the Velcro's "stickability," allowing you to avoid the expense and chore of Velcro replacement.
Hold the loop side, or soft side, of the Velcro in your hand and pick out any visible pieces of thread, lint, fuzz, etc., with your fingertips.
Use the lint brush, wire cleaning brush or clean toothbrush to gently brush the loops, removing further particles. Brushing also will perk up the loop fabric, which may have been flattened over time.
Hold the hook side, the hard, prickly side, of the Velcro with your hand. Use your fingertips to pick out any lint, fuzz, hair, etc., trapped in the Velcro's spiky protrusions.
Use the lint brush, wire cleaning brush or clean toothbrush to vigorously brush the hook bristles. This will remove any debris you may have missed and clean the hooks for better grasping power.