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==== Liquid State Polycondensation ==== | ==== Liquid State Polycondensation ==== | ||
The P:REACT follows the design principles of LSP (Liquid State Polycondensation) and considerably improves the properties of PET. This system has received the FDA-Letter of Non-Objection for food-contact applications in 2013 and is suitable for bottle flakes, fibers, wovens, non-wovens, sheets, thermoform-skeletons, preforms, start-up lumps and trays. The market introduction of P:REACT was world premiere at the NPE2015. | |||
The LSP-Process utilizes the inherent capability of PET to post condensate in the molten phase under vacuum. This post condensation leads to an increase of IV. The high performance vacuum effectively decontaminates the material from harmful chemicals - securing further use of the material for 100% food contact. As molten PET enters the vertical part of P:REACT, strands are formed to create a suitable surface to volume ratio. The material is then collected in a horizontal drum and slowly pushed forward. Post condensation starts immediately as the strands are formed and is set forth until PET exits P:REACT. IV increase is controlled by the residue time of the molten PET inside P:REACT and therefore can be adjusted to a desired level. The settings of parameters allow the control unit to maintain the desired IV-level within a small tolerance-band. | The LSP-Process utilizes the inherent capability of PET to post condensate in the molten phase under vacuum. This post condensation leads to an increase of IV. The high performance vacuum effectively decontaminates the material from harmful chemicals - securing further use of the material for 100% food contact. As molten PET enters the vertical part of P:REACT, strands are formed to create a suitable surface to volume ratio. The material is then collected in a horizontal drum and slowly pushed forward. Post condensation starts immediately as the strands are formed and is set forth until PET exits P:REACT. IV increase is controlled by the residue time of the molten PET inside P:REACT and therefore can be adjusted to a desired level. The settings of parameters allow the control unit to maintain the desired IV-level within a small tolerance-band. | ||