Trim which is glued rather than sewn on can oxidize, change color, yellow or come off over time. Even when sewn on, sizings present in lace or other trims can oxidize and yellow with age. Occasionally, dyes, especially ivory or ecru, are soluble in drycleaning solvent and bleach to white during cleaning. Little, if anything, can be done to correct these problems once they occur. Sequins or beading may not survive cleaning well.
Some glues dissolve in drycleaning solvent, causing the beading to come off.
In some cases, the beading or sequins may lose color or become dull if not treated with solvent resistant coatings. Polystyrene beads are being used increasingly. They may look like pearls but will dissolve or soften when drycleaned. Once the damage has occurred, it cannot be reversed. These problems are not the fault of the drycleaner, but rather of the manufacturer.