METHOD AND SYSTEM FOR PRODUCING A PLASTIC MATERIAL

The invention relates to various systems and methods for sorting plastics and for producing plastic material on the basis of sorted recycling material. According to one aspect, a type of plastic object is determined by detecting the intensities of reflected light in the infrared range at different w...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	BRAUMANDL, Walter
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MAKING GRANULES OR PREFORMS MEASURING PERFORMING OPERATIONS PHYSICS POSTAL SORTING PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS SEPARATING SOLIDS FROM SOLIDS SORTING SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTEDPIECE-MEAL, e.g. BY PICKING TESTING TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The invention relates to various systems and methods for sorting plastics and for producing plastic material on the basis of sorted recycling material. According to one aspect, a type of plastic object is determined by detecting the intensities of reflected light in the infrared range at different wavelengths, and then the plastic objects are sorted according to the types in question. According to another aspect, a concentration of a marker in a plastic material (502) made from recycled plastic raw material is determined and, on the basis thereof, a suitable quantity of additional markers is introduced in order to obtain a constant marker concentration.