Metal frames come equipped with special springs for this purpose. It is recommended that a paper dust cover be installed on the back of the frame. The dust cover provides a barrier to insects and dust and is one more layer of protection for your treasured textile. The dust cover may be attached to the frame with white glue or double stick tape. The light exposure in the place where your framed item is hung will also influence how long the item lasts, even with the best of framing methods.
Light deteriorates textiles.
The more light, the greater the damage, and this damage is cumulative over the life of the object. The symptoms may include fading or darkening, yellowing and other changes in color, and embrittlement. Ultraviolet light is especially damaging, and is unnecessary for visibility, so it should be eliminated as completely as possible. In conclusion, if you use safe materials and good techniques, handle your items carefully and do not use more light than necessary, you can significantly increase the life of your item while enjoying it on display. If you have questions, contact the Conservation Outreach Program at the Minnesota Historical Society for advice.