If possible, the box and tissue should be acid-free. Cardboard boxes should be avoided since they produce an acidic environment which weakens textiles over time. White tissue is recommended. Blue or other colors can bleed onto fabric if they become wet. Washed and thoroughly rinsed white cotton sheets can also be used to line the box.
Acid builds up over time in cellulosic materials such as cotton, linen, and rayon.
Wash and thoroughly rinse storage materials made from these fibers every year or two to remove acid build-up and limit potential for deterioration. To pack a large garment, such as a wedding gown, line the box with tissue or cotton sheeting. Place the garment in the box so as to limit folds. Place crumpled tissue at folds and in the bodice and sleeves for shaping. If possible, remove fabric-covered metal buttons, rubberized dress shields, or foam padding.