Marking apparatus and marking method

A marking apparatus, comprising:

• one or more memories including information on one or more marks;
• at least one carbon dioxide laser configured to output a laser beam;
• at least one optical arrangement for focusing the laser beam;
• at least one laser beam directing apparatus configured to direct the laser beam to a marking area, the marking area being configured to have a solid material of vegetable fibers with natural hue for forming a representation of the at least one mark of the one or more marks thereon;
• and
• at least one controller configured to receive information on the at least one mark from the one or more memories, control the at least one laser beam directing apparatus, the at least one optical arrangement and/or the at least one carbon dioxide laser based on the information on the at least one mark to perform a selection of an energy-per-unit-area range from a first energy range for a laser beam that is configured to cause the solid material of vegetable fibers to become visibly darker than the natural hue in response to interaction with the laser beam and a second energy range that is configured to cause the solid material of vegetable fibers to become visibly lighter than the natural hue in response to interaction with the laser beam, the selection being based on the at least one mark each requiring at least one energy-per-unit-area range,
• wherein the at least one laser beam directing apparatus is configured to enable the laser beam to travel over the solid material of vegetable fibers in response to the control by the at least one controller based on the at least one mark for forming the representation of the at least one mark on a surface of the solid material of vegetable fibers with the selected at least one energy-per-unit-area range in a single process stage from start to finish.