Vacurema technology: Difference between revisions
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Surface to volume ratio for flakes is 2.5 times higher than for pellets | Surface to volume ratio for flakes is 2.5 times higher than for pellets | ||
* | *Bottle flakes | ||
Pre-ground with 12 mm screen, average wall thickness approx. 0.1 to 0.4mm | Pre-ground with 12 mm screen, average wall thickness approx. 0.1 to 0.4mm | ||
* | *Pellets | ||
Typical dimensions: diameter approx. 2.5mm x 3mm length or ball shap | Typical dimensions: diameter approx. 2.5mm x 3mm length or ball shap | ||
''IV stability through vacuum treatment'' | |||
Despite varying moisture levels and different IV values in the input material, stable IV values are achieved through the patented pre-treatment method. This means, therefore, that input materials with higher material moisture levels can also be recycled. | Despite varying moisture levels and different IV values in the input material, stable IV values are achieved through the patented pre-treatment method. This means, therefore, that input materials with higher material moisture levels can also be recycled. | ||
''Melting under vacuum'' | |||
The patented pre-treatment at raised temperature and in high vacuum before the extrusion process removes moisture and migration materials from the feedstock in a stable process environment. This prevents any hydrolytic and oxidative decomposition of the melt in the extruder. | The patented pre-treatment at raised temperature and in high vacuum before the extrusion process removes moisture and migration materials from the feedstock in a stable process environment. This prevents any hydrolytic and oxidative decomposition of the melt in the extruder. | ||
''Low thermal stress'' | |||
The very short extruder screw without additional extruder degassing reduces the thermal stress on the material through minimized dwell time. | The very short extruder screw without additional extruder degassing reduces the thermal stress on the material through minimized dwell time. | ||
''Large area ultrafine melt filtration'' | |||
The filter systems have very large active filter surfaces. This enables filtration with up to 32μm fineness at low pressure. The result is highly clean pellets. | The filter systems have very large active filter surfaces. This enables filtration with up to 32μm fineness at low pressure. The result is highly clean pellets. | ||
''Minimum production costs with ecoSAVE'' | |||
Electricity accounts for 38% of the costs of bottle-to-bottle recycling. Thanks to integrated ecoSAVE technology, the lowest production costs of all systems on the market. | Electricity accounts for 38% of the costs of bottle-to-bottle recycling. Thanks to integrated ecoSAVE technology, the lowest production costs of all systems on the market. | ||
''Smart Start principle'' | |||
The plant‘s software-based process control system gives you extremely easy and reliable operation and premium user-friendliness including automatic start-up at the press of a button, fully automatic continuous operation, permanent monitoring for direct food contact (FCC) and the storage of all relevant process parameters. | The plant‘s software-based process control system gives you extremely easy and reliable operation and premium user-friendliness including automatic start-up at the press of a button, fully automatic continuous operation, permanent monitoring for direct food contact (FCC) and the storage of all relevant process parameters. | ||
''Turnkey solutions'' | |||
Erema delivers turnkey systems with support from one contact for the entire recycling process: sorting – washing – decontamination – extrusion – quality control – end product. | Erema delivers turnkey systems with support from one contact for the entire recycling process: sorting – washing – decontamination – extrusion – quality control – end product. | ||
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=== Three application fields === | === Three application fields === | ||
'''Inline''' | '''Inline''' | ||
The production of rPET film, besides bottle-to-bottle recycling, is a very inexpensive and profitable way of recycling the valuable secondary raw material PET bottle flakes | The production of rPET film, besides bottle-to-bottle recycling, is a very inexpensive and profitable way of recycling the valuable secondary raw material PET bottle flakes. Erema offers a complete inline production line for film which consists of a Vacurema Basic extrusion system plus a downstream processing step for thermoforming film production. The system is designed to process 100% bottle flakes, ground amorphous skeleton waste, virgin material, edge trim and mixtures of them directly to make food-contact compliant single-layer films (FDA conformity in accordance with categories A-H/J, EFSA approval requested via customers and obtained). | ||
In addition to this the Vacurema extruder can be combined with film production lines of many downstream system suppliers. This enables direct production of high-quality end products | |||
without pelletising. | |||
requested via customers and obtained). | |||
In addition to this the | |||
extruder can be combined | |||
with film production lines of many downstream system | |||
suppliers. This enables | |||
without | |||
'''Bottle-to-Bottle''' | '''Bottle-to-Bottle''' | ||