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RFID Sweetens Imperial's Shipping Process
The sugar manufacturer is using tagged plastic pallets to track its shipments from the refinery to the store, and to reduce the likelihood of contaminant exposure.
Oct 30, 2007—Imperial Sugar is using RFID-enabled plastic pallets to track its shipments from the refinery to the store. The pallet tags are providing a more visible (and safer) supply chain, says Greig DeBow, Imperial's VP of consumer sales and marketing. The tags' unique ID numbers, and the data associated with each number, enable the company to know where the pallets have been in the past, and to ensure that the pallets have not been used to ship bacteria-laden products, such as raw meat, that could contaminate Imperial's products.
The RFID-enabled pallets were provided by Intelligent Global Pooling Systems (iGPS). Imperial has been using the pallets since Oct. 15, DeBow says, and is gradually introducing them into its pallet supply to replace the wood versions used at its two plants in Gramercy, La., and Savannah, Ga.
The iGPS pallets, DeBow says, offer a solution at no greater cost than that of the wooden pallets. Because they are made of plastic, he notes, there is virtually no damage on them—and unlike wood, they can be sanitized. In addition, says Rex Lowe, president of iGPS, each plastic pallet comes with a unique Electronic Product Code (EPC) ID number written on each of the four passive EPC Gen 2 RFID tags embedded in the corners of the pallet. Lowe says the four pallet tags (supplied by Alien Technology or Avery Dennison) carry the same ID number and provide enough redundancy to ensure a read despite the density of the products loaded on the pallet.
Imperial uses those ID numbers to track its products being shipped on the pallets, and iGPS employs the same data to track each pallet's location at any given time. It also utilizes the numbers to maintain a record of who uses a particular pallet, and what is loaded on it. This helps to ensure that a company such as Imperial does not receive pallets that might have previously carried potentially contaminating shipments, such as raw meat or peanuts (for allergy concerns).
The sugar is refined and packaged at Imperial's plants, then moved down a conveyer, where it is stacked on a pallet and stretch-wrapped. At that time, workers input product data—such as the type of sugar, when it was refined and its destination—and fixed Alien interrogators capture the pallet's EPC number.
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