DEVICE (OPTIONS) AND METHOD (OPTIONS) FOR LABELING AND PACKAGING EGGS AND OTHER OBJECTS

摘要

1. A method for laser marking an egg shell, comprising the step of: (a) controlling a laser beam directed to the egg shell to discolor the outer layer of the egg shell without deep penetration into the outer layer in the portion of the egg shell, in which step (a) includes multiple sweeps laser beam over the egg shell. 2. The method of claim 1, wherein the laser beam has an energy density on the surface of the egg shell of less than about 2000 watts per square inch. The method according to claim 2, in which stage (a) further comprises scanning the laser beam over the portion of the egg shell at different speeds, at least in two passes. The method of claim 1, wherein the laser beam has an energy density in the egg shell portion of less than about 1600 watts per square inch. The method of claim 1, wherein step (a) further comprises controlling a laser beam, wherein the eggshell is etched to a depth of not more than about 25 microns. A method for processing an egg package, comprising: (a) after the eggs have been placed in the package, the position of one or more eggs is mechanically adjusted so that all the eggs have the same orientation within the package; and (b) after performing step (a) applying information to the surface of one or more eggs laid in a package. 7. The method of claim 6, wherein step (b) comprises laser-printed information on the surface of one or more eggs when the eggs are in the package. The method of claim 6, wherein steps (a) and (b) are performed such that at least one labeled egg has a center point of information printed on the egg located between