The provided search results did not contain specific instructions on how to fix a sofa button. Based on general upholstery knowledge, the process typically requires a few specialized tools and a methodical approach.
To begin, you will need the original button or a suitable replacement, a long upholstery needle (which can be straight or curved), heavy-duty upholstery thread or twine, and scissors. For securing the button on the reverse side of the cushion or frame, it is helpful to have a small washer, a piece of sturdy cardboard, or a smaller, less decorative button.
Start by threading the upholstery needle with a long piece of twine, doubling it up for extra strength. If you are reattaching the original button, pass the needle through the shank on the back of the button. Then, from the front of the sofa, push the needle straight through the upholstery fabric at the exact point where the button should be. You will need to guide it through the foam and out the back or underside of the sofa cushion or frame. This may require some force.
Once the needle is through to the other side, remove it from the thread. Loop the thread through your washer or cardboard piece, or tie it securely to the smaller anchor button. This anchor prevents the thread from pulling back through the upholstery. Now, thread the needle back onto the loose end of the twine and push it back through the sofa, exiting very close to your original entry point on the front. Pull the thread tight to create the desired tufted depression, ensuring the tension matches the other buttons on the sofa. To secure it, tie multiple strong knots at the base of the button's shank, then carefully trim any excess thread.
