Founded in 1917, Trinity Packaging Corporation offers a variety of plastic products, including mailing envelopes and retail store, food service, lawn and garden bags. It provides a range of private-label products that are sold through supermarket chains. The company supplies consumer trash bags under the Sturdi brand name. Trinity Packaging Corporation offers packaging products for carrying sand, stones, fertilizers, pet products, and bird, grass and flower seeds. It offers a selection of wave-top bags under the Expresswave brand name. Additionally, the company provides T-shirt, bakery and catering bags. Trinity Packaging Corporation supplies pull, mail, reinforced handle and die-cut merchandise bags.