A method of producing a printed article includes the following steps: providing a first web of polyethylene upon which a pattern has been printed; providing a second web of plastics material from which the article is to be formed, one of the first or second webs having a heat seal lacquer applied thereto; passing the first and second webs through a pair of heated rollers to cause the heat seal lacquer to become tacky; directing the first and second webs in adjacent overlying relation to a vacuum forming machine including a mold and applying heat and vacuum in the vacuum forming machine to cause the first and second webs to conform to the shape of the mold to produce the printed article, wherein the application of heat in the vacuum forming machine activates the heat seal lacquer to adhere the first and second webs together.