Packaging materials

thumb|300px|A glass building facade|alt=Refer to caption

thumb|Bundles of rice straw thumb|Pile of stacked small rectangular straw bales sheltered under a clear tarpaulin thumb|Straw lines and a Combine Harvester|combine harvester Straw is an agricultural byproduct consisting of the dry stalks of cereal plants after the grain and chaff have been removed. It makes up about half of the yield by weight of cereal crops such as barley, oats, rice, rye and wheat. It has a number of different uses, including fuel, livestock bedding and fodder, thatching and basket making.

thumb|right|Nitrocellulose adhesive dispensed from a tube

thumb|140px|The repeating unit within polyethylene in the most stable staggered conformation

thumb|Expanded polystyrene packaging thumb|A polystyrene yogurt container thumb|Bottom of a vacuum forming|vacuum-formed cup; fine details such as the glass and fork [[food contact materials symbol and the resin identification code symbol are easily molded]]

thumb|Ester group (blue) which defines polyesters. This diagram shows just one ester linkage per repeat unit. Polyester is a category of polymers that contain one or two ester linkages in every repeat unit of their main chain. As a specific material, it most commonly refers to a type called polyethylene terephthalate (PET). Polyesters include some naturally occurring chemicals, such as those found in plants and insects. Natural polyesters and a few synthetic ones are biodegradable, but most synthetic polyesters are not. Synthetic polyesters are used extensively in clothing.

Polypropylene (PP), also known as polypropene, is a thermoplastic polymer used in a wide variety of applications. It is produced via chain-growth polymerization from the monomer propylene.

thumb|Jute fiber thumb|A jute field in Bangladesh thumb|Jute rope

thumb|Chocolates wrapped in cellophane Cellophane is a thin, transparent sheet made of regenerated cellulose. Its low permeability to air, oils, greases, bacteria, and liquid water makes it useful for food packaging. Cellophane is highly permeable to water vapour, but may be coated with nitrocellulose lacquer to prevent this.

thumb|USDA Organic milk cap label thumb|A bunch of bananas with a label thumb|A label with faux Embossing (paper)|embossing thumb|A label made with embossing tape thumb|Shirt with labels A label (as distinct from signage) is a piece of paper, plastic film, cloth, metal, or other material affixed to a container or product. Labels are most often affixed to packaging and containers using an adhesive, or sewing when affixed to clothing. Labels contain printed information or symbols about the product or item. Information printed directly on a container or article can also be considered labelling.

thin, flexible sheets of aluminium, used for wrapping food, and other purposes

pliable transparent plastic material

lightweight paper or, light crêpe paper

paper-based material consisting of a fluted corrugated sheet and one or two flat linerboards

thin plastic film typically used for sealing food

paper or paperboard produced from chemical pulp produced in the kraft process

woven fabric from jute or sisal

polymer

solvent-free and at room temperature more or less solid products which are applied to the adhesive surface when hot

paper which has been coated by a compound or polymer

thumb|upright=1.35|Corrugated fiberboard made from paperboard

Polymethylpentene (PMP), also known as poly(4-methyl-1-pentene). It is used for gas-permeable packaging, autoclavable medical and laboratory equipment, microwave components, and cookware. It is commonly called TPX, which is a trademark of Mitsui Chemicals.

Pullulan is a polysaccharide consisting of maltotriose units, also known as α-1,4- ;α-1,6-glucan'. Three glucose units in maltotriose are connected by an α-1,4 glycosidic bond, whereas consecutive maltotriose units are connected to each other by an α-1,6 glycosidic bond. Pullulan is produced from starch by the fungus Aureobasidium pullulans. Pullulan is mainly used by the cell to resist desiccation and predation. The presence of this polysaccharide also facilitates diffusion of molecules both into and out of the cell.

strong, durable paper-like product manufactured from calcium carbonate bonded with high-density polyethylene

thin continuous polymeric material

polymer

thin tissue paper for wrapping and cushioning items

polymer

polymer used to bundle boxes on a pallet for transport

type of paperboard

textile fabric impregnated with beeswax, impermeable to water

wide range of extruded twinwall plastic-sheet products produced from high-impact polypropylene resin

thumb|right|Metallised film|Metallized boPET film, 32 layers of ~14 μm thickness each

closed-cell polyethylene foam made from non-crosslinked, low-density polyethylene (LDPE) resins

chemical compound

packaging material

type of tape

polyethylene food wrap

set of connected plastic rings that are used as packaging

type of radio-frequency identification (RFID) transponder

Dunnage is inexpensive or waste material used to load and secure cargo during transportation; more loosely, it refers to miscellaneous baggage, brought along during travel. The term can also refer to low-priority cargo used to fill out transport capacity which would otherwise ship underweight.