Packaging machine for a package, and packaging method therefor

A packaging machine for a package, the package having a package body having a housing space for housing an object to be housed, and a lid part formed so as to cover an opening of the housing space of the package body, wherein

• the lid part is provided with a lid-side magnetic region that is coated with an unmagnetized magnetic material, and
• the package body is provided with a body-side magnetic region that is coated with an unmagnetized magnetic material, at such a predetermined position on the package body as to face the lid-side magnetic region in a complete state of the package where the lid part covers the opening of the housing space,
• the packaging machine comprising:
• a conveying machine that conveys a package blank for the package, while in the package blank, at least a first blank portion related to the lid-side magnetic region, and a second blank portion related to the body-side magnetic region are in a predetermined unfolded state;
• a lid-side magnetizing roller that is supported so as to be able to come into contact with the lid-side magnetic region of the package blank being conveyed in the predetermined unfolded state by the conveying machine, and so as to be rotatable when coming into contact, and has a permanent magnet which magnetizes the magnetic material of the lid-side magnetic region;
• and
• a body-side magnetizing roller that is supported so as to be able to come into contact with the body-side magnetic region of the package blank being conveyed in the predetermined unfolded state by the conveying machine, and so as to be rotatable when coming into contact, and has a permanent magnet for magnetizing the magnetic material of the body-side magnetic region so as to form a predetermined magnetic distribution corresponding to a magnetic distribution in the lid-side magnetic region formed by the lid-side magnetizing roller.