Atub is an open-top circular or oblongcontainer. In earlier times they were made from woodenstaves held together with iron hoops and were made bycoopers. Modern tubs used in industry might be made from concrete, metal or plastic.
Small plastic tubs used in the home may have a separate or attached snap-onlid or cover; some tubs may have latched lids.
Tubs are used for multiplepackaging applications as well as household and industrial storage.
Many tubs are made of formed thermoplastics such asPET polyester, polystyrene, orpolypropylene. Processes of creating tubs are eitherthermoforming orinjection moulding. Tubs can also be formed ofpaperboard,molded pulp, and aluminum.
Some tubs have special microwave features such assusceptors[1]
Tubs can have a heat sealedlidding film attached prior to the lid being placed on. Some tubs have aTamper-evident band orsecurity strip to indicate premature opening.
Several types of latches and means of lid attachment are available.[2]
Both the body and lid of a tub can be printed or have attachedlabels.
