Method for transferring a negative structure of a surface of an inner wall of a blow molding tool, and plastic container

A method for transferring a negative structure of a surface of an inner wall (51) of a blow molding tool (1) to a surface of a plastic container, the method comprising the steps of:

• heating at least one region (511) of a mold cavity (6) of a molding body (5) of the blow molding tool (1) on which the negative structure is formed,
• introducing a preform into the mold cavity (6),
• closing the blow molding tool (1),
• forming the plastic container by inflating the preform and forcing the preform to expand and abut against the inner wall (51) of the mold cavity (6),
• forming the inner wall (51) of the mold cavity (6) of the at least one region (511) to have a wall thickness of at least 0.059 inches (1.5 mm) and at most 0.472 inches (12 mm) to promote heating and cooling,
• cooling the at least one region (511) by feeding a coolant, via temperature control channels (54) which communicate with an exterior surface of the inner wall (51) of the mold cavity (6) to facilitate at least one of heating and cooling of the exterior surface of the inner wall (51) of the mold cavity (6),
• within the mold body (5), insulating at least a portion of the temperature control channels (54) from at least a portion of the molding body (5) in order to decrease a mass of the blow molding tool, which is to be heated and cooled during a molding cycle, and reduce associated energy costs of the method, and
• removing the plastic container from the mold cavity.