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)( D.1 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail:

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Presentation on theme: ")( D.1 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail:"— Presentation transcript:

1 )( D.1 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org Blow Moulding Process & Barrier Containers Part 3 Multilayer coextruded containers

2 )( D.2 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org - Strength and rigidity - Aluminum seal weldable - Printable and labeling - Use of R-material (middle layer) - Esthetic (gloss) - Chemical resistance - Barrier layer food/beverages: oxygen, light cosmetics: active chemicals, oxygen agro: active chemicals, oxygen Advantage of multimayer bottles

3 )( D.3 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org BOTTLE WALL Water Oxygen Smell Water Fragrancies Bad smell Barrier layer function: reduce migration of gases through the bottle wall Function

4 )( D.4 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org MaterialOxygen cm³ mm/m² 24h bar CO2 cm³ mm/m² 24h bar Water vapor g mm/m² 24h bar EVOH PVdC PA PET u-PVC PE-HD PP 0.04 2.3 4.4 44 90 0.12 4.7 6 12 120 180 0.08 2.4 1.6 1.2 0.2 K- Coefficient of permeability for commercial plastics Coefficient of permeability

5 )( D.5 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org Barrier performance

6 )( D.6 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org Polymer and structure selection for barrier containers (1) Data related to: Polymer compatibility/adhesion to other polymers Barrier coefficients Aroma migration data Water absorption Chemical and swell resistance to organic solvents, oils and fats Chemical resistance to agrochemical active components ESCR at different °T are provided normally by polymer, barrier resin and adhesive manufacturers. Selection

7 )( D.7 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org Polymer and structure selection for barrier containers (2) Brand owners in the food, agro, pharma and cosmetics activity have to issue own customer specifications, which has to identify the container design, weight and structure in terms of polymer selection, including the barrier resin. The blowmolder has to agree with the brand owner about feasibility, cost, timing and container performance. Selection

8 )( D.8 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org 2 layers PE-LD/PE-HD 3 layers PET/PET/PET PET/PA/PET PE-HD/R PE-HD /PE-HD PE-HD/Adhesive/PA PE-HD/Adhesive/EVOH 4 layers PE-HD/R PE-HD/Adhesive/PA or EVOH Courtesy BEKUM International Structures

9 )( D.9 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org 5 layers PE-HD/adhesive/EVOH/adhesive/PE-HD PE-HD can be replaced in some cases by PP EVOH can in some cases be replaced by PA 6 layers PE-HD/R PE-HD/adhesive/EVOH/adhesive/PE-HD PE-HD can be replaced in some cases by PP EVOH can in some cases be replaced by PA Courtesy BEKUM International Structures

10 )( D.10 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org Packaging for Agro-chemical Garden Foodstuffs Cosmetics Pharmaceuticals Courtesy BEKUM International Applications of multilayer coex containers

11 )( D.11 Assocomaplast - Centro Direzionale Milanofiori - Palazzo F/3 - 20090 Assago - Milan - Italy - tel +39 02 8228371 - fax +39 02 57512490 - e-mail: info@assocomaplast.org www.assocomaplast.org Bottle design - Use of Computer Aided Design

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