Polyethylene-Low Density is a polymer that can be used to form a plastic bag and its zip closure. It is part of the Polyethylene (PE) family, which is the most widely used plastic. Polyethylene-Low Density, also known as LDPE, is commonly used in rigid plastic containers. We use a mix of different polyethylene densities to get the ideal strength and flexibility for different bag types. It is approved for use in products that come into direct contact with food. Polyethylene-Low Density can withstand both heat and freezing. Check your product label for more information and rest assured that Ziploc^® Brand products that are marked as "microwaveable" meet the safety requirements of the U.S. Food and Drug Administration (FDA) for temperatures associated with defrosting and reheating food in microwave ovens, as well as room, refrigerator, and freezer temperatures.

Ethylene-vinyl acetate copolymer is a polymer that we use to form a plastic bag.

Polyester is a polymer that can be used to form a plastic bag. It can also be used as a thread, for example in Ziploc^® Brand Flexible Totes. It is approved for use in products that come into direct contact with food. Polyester can withstand both heat and freezing. Check your product label for more information and rest assured that Ziploc^® Brand products that are marked as "microwaveable" meet the safety requirements of the U.S. Food and Drug Administration (FDA) for temperatures associated with defrosting and reheating food in microwave ovens, as well as room, refrigerator, and freezer temperatures.

Nylon is a synthetic polymer with many, many uses. It was originally intended as a replacement for silk. Today it's used in many different ways from clothing to rope to strings for musical instruments. We use nylon in the zip closure of plastic bags. It is approved for use in products that come into direct contact with food. Nylon can withstand both heat and freezing. Check your product label for more information and rest assured that Ziploc^® Brand products that are marked as "microwaveable" meet the safety requirements of the U.S. Food and Drug Administration (FDA) for temperatures associated with defrosting and reheating food in microwave ovens, as well as room, refrigerator, and freezer temperatures.

For competitive reasons, the supplier of this resin blend binding tape has asked us to keep the details confidential, and we're legally bound to do so. But we can tell you that it's a special tape that seals the seams of a Ziploc^® Brand Flexible Tote.

Ultramarine Blue 2946 is a colorant, or dye. We add dyes to products for a variety of reasons including for aesthetics, such as giving a tint to the plastic of a bag or container. Ultramarine Blue 2946 can also be used as an ink, which adheres to a surface to produce an image or text, for example printing information on a plastic bag. It is a product of Nubiola Grupo, which is responsible for its contents.

White Ink G09 is an ink, which is a liquid that contains pigments or dyes to provide color. Inks are designed to adhere to a surface to produce an image or text. White Ink G09 is a water-based ink that we use to print information on a plastic bag. It is a product of DIC Graphics Chia Lung Corp., which is responsible for its contents.

Ultramarine Blue 2946 is a colorant, or dye. We add dyes to products for a variety of reasons including for aesthetics, such as giving a tint to the plastic of a bag or container. Ultramarine Blue 2946 can also be used as an ink, which adheres to a surface to produce an image or text, for example printing information on a plastic bag. It is a product of Nubiola Grupo, which is responsible for its contents.