MANUFACTURING METHOD AND MANUFACTURING APPARATUS FOR PRINTING MAGNETIC ORIENTATION MASTER AND MAGNETIC PIGMENT PRESSWORK
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United States of America Patent
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Issued Date -
Mar 19, 2015
app pub date -
Apr 8, 2013
filing date -
Apr 11, 2012
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Abstract
A manufacturing method and a manufacturing apparatus for a printing magnetic orientation master and a magnetic pigment presswork are provided. The manufacturing method for a printing magnetic orientation master comprises: providing a magnet; using a heat radiation beam to heat a partial area of the magnet so that a new magnetic domain structure is formed in the partial area through self-magnetization of the magnet to change a magnetic-field distribution in the partial area; and removing the heat radiation beam to keep the new magnetic domain structure after it is decreased to a normal temperature so that the changed magnetic-field distribution is kept in the partial area, thus forming the printing magnetic orientation master having a predetermined magnetic orientation pattern. This can simplify the manufacturing process of the printing magnetic orientation master and allow the printing magnetic orientation master to carry abundant pattern information.
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