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Pepsi Bottling Ventures LLC (PBV)

In July of 2002 the first products were being produced at PBV’s new small-bottle PET line in Raleigh, NC in a 200,000 sq ft production/distribution plant. This was a $40 million investment for PBV that gave the company the ability to increase production. PBV has bottling rights for Pepsi products covering most of North Carolina and a portion of Long Island, NY. One of the facilities that upgraded to the PBV production bottling plant was the Raleigh location with the primary goal being the production of bottled water under the Aquafina label, one of the fastest growing products within Pepsi. The need for this upgraded production facility from PBV offers Pepsi the ability to be competitive and cost-conscious (Mans, 2003). Features Individual sanitary enclosures are designed and manufactured by ICS Intl. These contain washing/capping/filling systems on the PET (Polyethylene Terephthalate) lines. The fillers are housed in one room, with a common heating, ventilating and air conditioning system. The PBV plant features an individual sanitary enclosure for each filling system with monobloc filler guards that are integrated into the face of the enclosure. The enclosures have an epoxy floor that is sloped to a stainless-steel drain, vision panels and a complete air-quality control system. The walls and ceiling are made of insulation sandwich panels consisting of inside and outside stainless-steel panels filled with polyurethane foam. The clean rooms come complete with lighting, doors, an air filtration unit, air conditioning, and an air exhaust system. The air-filtration units maintain pressure in the enclosure to prevent outside air from entering (Mans, 2003). Bottles Aquafina uses bottles that are produced by Amcor PET Packaging-North America. Amcor uses PET to make plastic containers for Pepsi products. Amcor’s website states that this plastic material is manufactured from various by-products of the oil and gas industries, Aquafina Bottled Water 12 especially ethylene glycol and terephthalic acid. PET consists of carbon, hydrogen and oxygen

and can be incinerated without residues for energy recovery. PET is the most valuable of the recyclable plastics. It offers the ability for the container to be lightweight, shatter resistant, resealable and recyclable. The formation of a bottle is blow molded which involves blowing air into a molten plastic tube and then forcing the material to follow the shape of the mold. Injection molding is also involved which is the process of converting plastic pellets by using heat and pressure to inject the molten material into a water-cooled mold. Amcor’s website explains this technology (http://www.amcor.com/Default.aspx?id=505). Filtration/Sanitation/Air Quality The units have three filtration stages. These stages involve roughing filters, bag filters and HEPA filters for an average air quality of Class 1,000. ICS added an air extractor that sucks the air from the enclosure and ducts it outside the plant to avoid discharging air loaded with sugar or ozone into the surrounding area inside the plant. Air quality is optimized through the limits that are placed on the filler. This also allows the operator to stand outside the room and control the machine (Mans, 2003). Bottling Pre-labeled bottles are delivered to an automatic depalletizer on pallets with cardboard slipsheets between the layers. The depalletizer raises the pallet one layer at a time. A sweep carriage equipped with suction cups swings over and automatically removes the slipsheet and deposits it in a bin for return to the bottle supplier. The depalletizer then indexes the layer of bottles up, and the carriage sweeps the bottles onto a mass bottle conveyor. The bottles on the small-PET (Polyethylene Terephthalate) line are then conveyed in mass to two Lanfranchi high-speed bottle scramblers which have rotating turrets that orient the bottles in an upright position. Level sensors in the hopper of each unscrabler turn delivery elevators on and off to maintain bottles in the hoppers. The bottles from both unscramblers Aquafina Bottled Water 13 converge in single-file and are injected into the neck-guided air-conveyance system, where the

bottles are supported by rods beneath their neck finishes. The bottles are then pushed along the chamber by air blowing. The depalletizing workcell includes three depalletizers and is designed to allow two operators to feed containers to three production lines. The bottles are delivered to the gripping heads of the 108-station rinser through the entrance starwheel, and are turned upside down as the unit rotates. Purified water is sprayed into the bottles through nozzles affixed to the gripping heads, and then drains out as the unit continues its rotation. This solution contains ozone for maximum cleaning efficiency. Bottles are then turned upright and discharge through a starwheel that also serves as the delivery starwheel to the filler.the filler for these bottles is an isobaric-volumetric machine with 144 filling valves. Each filling valve is connected to the central tank through a product pipe and two gas pipes connected to the carbon dioxide supply. One pipe is used for the bottle pressurization and the other pipe for the pressure stabilization between the tank and the filling valve. When running Aquafina, the system uses nitrogen instead of carbon dioxide. The level inside the filling cylinder is essentially the same as the level in the central tank, and changes in the quantity of fill for different bottle sizes is accomplished by changing the level in the central tank. A piston in each cylinder is adjusted by an external magnetic coupling to set the exact volume to be filled to an accuracy of ±2 mL. This is done from the operator panel (Mans, 2003). Capping From the filler, bottles travel through another starwheel into the 36-head Arol CSD screw capper. Caps are supplied by Alcoa and are sorted and delivered to the capper by a system from Aquafina Bottled Water 14 SIDEL, Packaging Systems Div. Caps are loaded into a hopper located outside of the enclosure. Then a nearly vertical belt carries the caps to the top of the enclosure. Caps are contained on horizontal cleats on the belt and if any caps improperly orient they fall back into the hopper. The belt discharges the caps onto a track that carries them down to the capper. A transfer star picks the caps from the track and places them on the capping head, which then rotates synchronously above the bottle turret. The capping head lowers and screws the cap onto the bottle as the unit rotates. Capped bottles leaving the enclosure pass through an Industrial Dynamics Filtec x-ray fill height inspector. The capped bottles then pass two Videojet Excel ink-jet printers that print a freshness date on the bottle cap tamper ring. The plant has installed two of these units to provide redundancy in case one unit malfunctions. For added security a Domino laser printer applies

production codes and a freshness date to the bottle. After being coded the bottles then travel onto a multichain mat-top conveyor that slows their transport speed from 350 to 40 ft/min and accumulates the bottles from single-file to mass (Mans, 2003). Label/ Glue/ Packing /Packaging A HiCone machine produces six-packs of 16- and 24-oz, and 500-mL bottles. The bottles are delivered to the machine in two lanes. The two lanes separate six bottles and apply the plastic carrier material. The material is delivered in a continuous web to a large vertical wheel rotating above the bottles. The wheel pushes the web down onto the six bottles, and it is then cut to separate the six-pack. The packs are then diverted into two lanes and fed to a Hartness 2650 continuous-motion case packer that places four six-packs into reusable plastic crates for delivery to the PBV warehouse for distribution.

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