composite containers

composite containers

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  COMPOSITE CONTAINERS BY K.GOPI KRISHNA PG/H/16012
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  Agenda……  Introduction tocomposite containers  materials used in it  Diff types of composite cans  Advantages  Applications  Environmental Responsibilities
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  Brief background Global EconomicTransformation: Agricultural and Industrial. a) Rigid and Costlier packaging are replaced by better, convenient and cheaper ones. b) Fortification by inexpensive materials. c) Delicate components of multilayers can be buried between other sturdy materials. d) Today there are more than 100 plants making 7.6 billion composite cans
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  composite.. A composite containeris a canister or a container made from more than one constituent material in order to enhances the maximize useful properties and minimize their weaknesses , generally consisting of paper, boards and Kraft papers with metal of plastic ends. It is also called a ‘combican’.
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  . Eg: One ofthe oldest and best-known composites, glass-fibre reinforced plastic, combines glass fibres (which are strong but brittle) with plastic (which is flexible) to make a composite material that is tough but not brittle.
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  There are basicallysome types of composite materials which are used .. • Fibre • Flake • Unbleached Kraft paper
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  Laminated Composite Container 1.These composite Container made from Kraft papers and boards, 2. Laminated with polyethylene or aluminum 3. And heat sealed with the membrane and for 100% leak proof. 4. Unique properties: Aroma retention capacity increases, permeability of moisture vapor decreases.
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  Basic Structure ofComposite Containers Normally a composite container is made of five components. • The Liner • The Body wall • The Label • The Bottom end • The Top end
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  Different types ofmanufacturing composite container There are three types, • Convolute method, • Spiral method, • Linear draw.
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  1. In thismethod the web of papers of width of a can body is fed over adhesive applicator and then on rotating mandrel. 2. A no of wraps from a tube. 3. Can produce square, oblong and oval shapes. 4. Can body is cut from master roll body, And tube is taken for labeling. 5. Widely used, cheaper, faster and economical. Convolute Method
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  Spiral Winding Method 1.Layers of different qualities of papers are pulled over glue rollers and on to a stationery mandrel at an angle and carried around it by a moving belt to form a continuous tube. 2. It can produce only cylindrical shape.
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  Diff types ofcomposite cans • Peelable Foil Ends Container Easy Open End Container Deep Lid Container
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  Quality Grades Grade-I(Packaging Can):Tight enough for Lumpy products, granules and powder. Grade-II(Instant Can): Tight enough for hydroscopic products. To prevent clog or caking. Internal liner is heat sealed.
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  ADVANTAGES The right mixof constituent materials often results in composites which are corrosion resistant. They can resists damage from weather and harsh chemicals composites are lighter in weight, compared to most woods and metals. The lightness of composites is important in automobiles and aircraft, because less weight means better fuel efficiency. composites can be designed to be far stronger than aluminium or steel.
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  o composites canbe made to absorb impacts like sudden force of a bullet or blast from an explosion. Because of this property, they are used in bulletproof vests and panels and also to shield airplanes, buildings from explosions. o Combi cans can replace tin containers since the latter are heavier, costlier, corrosive and involve a foreign exchange burden on the public exchequer. o Composite containers are eco-friendly to the environment because of its disposal property as it can incinerate or crushed for biological removal.
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  Cont… • The stabilityof the can for a volume up to 1litre is as good are even better than tin or glass container. • 20% cheaper compared to tin. • composites are durable and needs little maintenance.
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  Minor problems.. • Thejoining of end closures with the sidewall has problems. • When the metal after curling, grips the joint and wicking may be tightly around the seam, biting into soft body ends may separate from bodies during shipping. This happens during stacking • Wicking, skiving, tapering or cutting chances
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  Some other fieldswere composite materials are used: • Food products like Custard Powder, Masala Powder, etc. • Detergents, Detergent Powders. • Pharmaceutical Products like Tablets, etc. • Pesticides, etc. • Laminated composite cans have replaced tin & plastic containers for Motor oil, Grease, Inks, Processed foods, Milk and Milk products
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  Cont.. • Jams/Jellies, etc. •Fruit Pulps • Fruit Beverages • Preservatives • Frozen Vegetables • Canned bottled vegetables • Milk Powder, Baby foods • Lube oils, Motor Oil, etc. • Tooth powder, Talcum powder, etc.