Cellulose acetate negatives are among the most common materials in photo archives. Although they have emmerged to replace the flammable cellulose nitrates, the chemical instability of cellulose acetate (Safety negative) was quickly noticed. Its most common deterioration phenomenon is the Vinegar Syndrome, characterized by the releasing of acetic acid. The appearance of bubbles, caused by the migration of plasticizers, is also often observed. The storage of these materials under suitable conditions is one of the ways to avoid the appearance of these damages. Do not hesitate to contact NEON to find out how we can help you.