Paperboard containers

Rigid paperboard containers are made of paper greater than 0.254 mm (0.010 in) in caUper and include folding cartons, cormgated ftberboard cases, and spiral wound composite cans. Many paperboard cartons require the use of inner liners or overwraps, made of protective grades of paper, plastic, or aluminum foil laminations. 

The resistance of the polymer to oils and organic solvents can be direcdy attributed to the hydroxyl fiinctionahty and the fihn-forrning properties of the polymer. Treated paper substrates display a significant amount of oil resistance, which make them valuable for packing papers and food-grade paperboard containers. This performance improvement is achieved despite the fact that the 1—3 wt % add-on level, typical of size press appHcations, is too low to provide a continuous poly(vinyl alcohol) film. 

Paperboard containers and boxes. These establishments are engaged in the manufacture of corrugated and solid fiber boxes and containers from purchased paperboard. The principal commodities of this industry are boxes, pads, partitions, display items, pallets, corrugated sheets, food packaging, and nonfood (e.g., soaps, cosmetics, and medicinal products) packaging. 

Castle. L., Kelly. M Gilbert. J., 1993, Migration of mineral hydrocarbons into foods. II. Polystyrene, ABS, and waxed paperboard containers for dairy products. Food Add. Contam. 10 (2) 167-174. 

Paper and allied products, except containers Paperboard containers and boxes Newspapers and periodicals Other printing and publishing Industrial and other chemicals Agri- cultural fertilizers and chemicals Plastics and synthetic materials E 3 C. 5- "8 E... 

Franklin Associates, Ltd., Resource and Environmental Profile Analysis of Foamed Polystyrene and Bleached Paperboard Container. Franklin Assoc., Prairie Village, KS, 1990a. 

Carton a paperboard container holding identical product usually of a size and weight billowing manual handling example dimensions are 14 X 10 X 20 in. and 300 X 200 X 400 mm recent trends in some industry sectors are towards a flimsier container, often called a hat, where the upper portion is plastic wrap. 

Sclairfilm. Extrusion coatings food packaging, milk cartons, paperboard containers, liner films, stretch films, shrink films, disposables, heavy-duty shipping sacks, and grocery sacks. 

Uses Extrusion resin for food pkg., milk cartons, and paperboard containers food-contact paper/papertxrard, polymer Features Offers exc. sealability and toughness, high adhesion and drawdown, good barrier props, and abrasion resist. 

Both treatments improve the water barrier properties of paper-board by decreasing the water vapor transmission rate by 77-78%. The results suggest that the surface coating by biodegradable polymers may be utilized for the manufacture of paperboard containers even in industrial applications (26). 

Heat-sealable paperboard containers comprised of various laminate structures are widely used in the container industry. A growing concern regarding the solid waste disposal of containers coated on two sides with non-degradable pol5mciers has arisen, and a solution to the non-readily biodegradable container has been widely sought (16). 

Many foods that have a higher fat content or a high moisture content are packaged in paperboard containers coated with PE (Song et al. 2003). Recycled... 

Cellulose materials contain structural defects, pores and capillaries, which affect the physical adsorption of various substances absorption of liquids diffusion and permeability of gases, vapors, and liquids mechanical and some other properties. Investigations have shown that pores between elementary fibrils have diameter about 1.5-2 nm (loelovich et al., 1988]. Diameter of pores and capillaries between microfibrillar bundles can be in the range from 2 to 20 nm (Papkov et al., 1976]. Cell wall of natural cellulose fibers has mesopores with diameter from 40 to 100 nm (Segeeva, 1972]. Samples of paper and paperboard contain also macropores with diameter above 100 nm (loelovich et al., 1988]. 

Pala, H Lemos, MA Mota, M Gama, FM. Enzymatic upgrade of old paperboard containers. Enzyme and microbial technology, 2001, 29(4-5), 274-9. 

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