Abrasion resistance |
The ability to withstand the effects of repeated rubbing, scuffing and scratching. |
Acetate |
Thin, flexible sheet of transparent plastic used to make overlays. |
Acrylic |
Material used for some matt finish carrierbag ropes |
Acrylonitrile butadiene styrene (ABS) |
Blends of polystyrene or styrene-acrylonitrile with butadiene-acrylonitrile rubber. Noted for stiffness and heat resistance. Easily thermoformable. |
Adhesive |
Any material which is applied to one or both surfaces to form a bond between the two.
In other words; An adhesive is a product or substance which is used to attach two materials together, these can include glue or paste
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Adhesives dispensers and machines |
From the simple manual tape dispenser to the fully automatic applicator machines, it makes the process of closing boxes faster and more efficient. In case of plastic tape a simple dispenser process is used for manual and automatic applications. The main difference is that in automatic applications the box closing is automatically done. |
Adhesives tapes |
The product consists in a base support (plastic, paper) and glue (adhesive), which are used for sealing corrugated boxes and other packages. There are different tape materials such as paper, plastics fabricated in a wide range of thicknesses and widths. This gives the best solution depending on application and area of usage. See Paper Tapes, and/or Plastic Tapes |
Aerosol |
A gas-tight container equipped with a valve which is designed to hold the product and the propellant gas under pressure. When the valve is opened, generally by finger pressure, the product is dispensed. Aerosol products include wet sprays, foams, pastes, syrups and powders. |
Against the grain |
At right angles to the grain direction of paper. |
Air bubble film |
Is usually made of two polyethylene films joined together so that air bubbles are formed between the layers. Delivered in rolls for wrapping and cushioning. |
Air pad |
Air pad is a fast, easy-to-use and efficient void filling solution that can also be used for blocking lightweight products. This packaging solution fills the empty spaces in the box, effectively protecting and stabilizing the product. The material is clean and aesthetic and it is suitable for regular shaped products without sharp edges. |
Alteration |
Change in copy or specifications made after production has begun. |
Ampoule |
A small container made from glass or plastic, the end(s) of which is drawn into a stem and closed by fusion. The stem end is broken off to open the ampoule. |
Anilox |
A cylinder used in a Flexographic press. The anilox picks up ink in microscopic pores engraved on the cylinder.This cylinder is midway between the fountain roller in the ink supply, and the print blocks which print the image. |
Anti slip paper |
Anti slip paper is a disposable non-woven fleece; it is placed between the layers and avoids shifting of the cargo. This fleece is used to put between roles of paper, but also as an anti-skid material under a pallet. Anti skid fleece is particularly efficient to use with goods of an irregular form.
Anti slip sheets are the best solution to become more safety and stable your pallets handling in the storage system and transport. |
Application weight |
the amount of adhesive or other coating per unit area. |
Artpaper |
Mainly used for carrierbags from the Far East Plant, this paper is bulkier, and less dense than Kraft, and is therefore usually, and economically, supplied in a heavier grammage than an equivelant Kraft, which gives the carrierbag a bulkier feel for similar cost. It does however have a "soggy" rather than "crackly" feel compared with Kraft. It can be supplied clay coated one or both sides. |
Aseptic packaging |
A system that sterilizes the product before filling into pre-sterilized packs under aseptic conditions.
In other words: The bringing together of a sterilized product and a sterilized packaging material and combining them under sterile conditions. As long as the package remains sealed, the product has an extended shelf-life without being refrigerated. |
Auger feed |
screw feeder used to discharge known volumes of powder or paste products. |
Auger filler |
A filling machine equipped with a large spiral screw to push products which do not flow freely (granular solids, powders, discrete articles). |
Auto discrimination |
the ability of a bar code reader system to distinguish automatically between two or more symbologies. |
Bag |
A preformed container made of any flexible material, open at one end for filling. May be made in single or multi-ply layers of similar materials or in combinations of different materials, i.e. paper, aluminum foil, textiles or plastics. Sometimes referred to as a sack, but "sack" generally indicates a larger or heavy-duty shipping bag. The four basic styles of bags are: 1. Automatic self-opening - can be opened with a quick flip of the wrist, the bag is made with tucks in the side and a preformed square bottom which permits it to stand upright when empty (SOS). 2. Satchel-bottom - a paper or plastic bag with a flat bottom when filled. 3. Flat - of simple construction having no gussets (folds). 4. Square - a folded bottom and gussets at the sides to reduce width when closed without reducing capacity. |
Bale |
1. A shaped unit load bound under tension.
2. In the paper trade, a bale normally consists of a number of reams stacked on a timber base board of the same size and with a similar board protecting the top.
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Banding |
Method of packaging printed pieces using paper, rubber, or fiberglass bands. |
Bar code |
A numerical identification symbol, whose value is encoded in a sequence of highly contrasted rectangular bars and spaces. The relative widths of these bars and spaces contain the information. Identification is by visual or electronic means. |
Bar code character |
a group of bars and spaces within a bar code that represent a single letter, number or character. |
Bar code density |
the number of characters that are represented in a bar code per unit of length (characters per inch, cpi.). |
Bar code reader |
a device used to capture the data encoded within a bar code and convert it into computer compatible data or a human readable characters display. |
Bar code symbol |
the combination of characters required by a particular symbology that makes up a scan able entity. |
Barrel |
A bulging cylindrical container having two flat ends of equal diameter, generally made of wood. |
Barrier Material |
Barrier materials are packaging materials with protective properties. Barrier materials vary, but common barrier properties include UV, moisture and gas barriers. Packaging materials are often laminated to increase barrier properties. In plastics, masterbatches can also enhance barrier properties. |
Batch code |
combination of characters that facilitates tracing of the product to the batch in which it was processed. |
Batten |
A reinforcing member attached at right angles to a wood box panel, wood barrel or a wire-bound crate. |
Bead |
A narrow rounded projection or depression around the surface of a package or package component to stiffen and enhance the strength. |
Belt conveyor |
A continuous web designed to transport goods from one point on a production or packing line to another. |
Biaxial Orientation |
Biaxial orientation is the process of forming hot plastic films in cross machine directions, resulting in a stronger film. One of the most common biaxially oriented films is Biaxially Oriented PolyPropylene or BOPP film. |
Binder |
1. Adhesive substance or other binding material whose function is to fasten or to hold components or materials together (printing ink binder). 2. In paper, an adhesive component used to cement filler to the base stock. |
Biodegradable |
degradable under natural conditions, e.g. in landfill. |
Birch Faced Kraft |
the base ply is usually the same as for a White Top Kraft. The top ply is of Birch fibres which are bleached by an Oxygen based technique, which does not involve the use of chlorine compounds. This slightly lowers the overall environmental impact of the process, but the best whiteness levels can be achieved are lower than those that can be achieved for White Top Krafts. |
Blank |
A piece of material from which a package or a component can be made by additional operations.
For example:
1. In closures, the basic cap before forming or threading.
2. In metal cans, the flat piece cut to size before forming into a body or end.
3. In paperboard, the cut and scored section before erecting and glueing to form a box, tray or lid.
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Bleached Kraft |
as its name implies, Bleached Kraft is produced by the same process as natural Kraft with the addition of bleaching stage in the pulping process. This produces a material which is white in appearance but with some loss of strength against the unbleached one. Bleached Krafts are less widely used nowadays with the development of White Top Krafts. |
Bleached white Kraft. |
Common paper bag or counterbag material. As far as we are aware the "bleaching" is by non chemical process for environmental reasons. |
Blend |
Often refers to a mixture of HDPE and LDPE, mixed at the time the film is made. (Extrusion). The result blends the characteristics of each type. |
Blister |
A thermoformed plastic shape that is used in the process to make a blister pack. |
Blister packaging |
The item to be packaged is secured between a preformed transparent plastic "bubble" and a paperboard carrier. The bubble is commonly of thermoformed PVC and the printed carrier often has a die-cut hole to permit hanging on a display rack. See also: Skin packaging. |
Block Pallet |
Block pallets have the most efficient design without stringers. They are capable of full four-way entry; compatible with forklifts, hand trucks and walkies in all directions. |
Blocks |
Used for Flexographic printing. Usually one block is required per colour each side of the bag being printed. Also called stereos or "Cyrels", which is the name given by Dupont to their stereo material product. Broadly, blocks cost according to their size, which is dictated by the size of the image to be printed. The blocks are placed on a cylinder which rotates, collecting ink from the Anolox, and place the ink on the substrate. |
Blow Moulding |
A plastic-forming method widely used for the production of hollow thermoplastic shapes. The process is made up of 2 phases: extrusion blow moulding and injection blow moulding
In other words; A blank, called a parison, is produced from plastic raw material by either extrusion or injection moulding. The parison is clamped in a heated mould and compressed air is blown inside the parison forcing it to fill the mould cavity thereby forming the desired bottle (package) shape.
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Blown film |
A thermoplastic resin is extruded through a circular die into a continuous tube into which air is blown under controlled conditions to expand the tube to the desired dimensions of width and thickness. The tube is flattened by rollers and either slit into two rolls of flat film or wound into a single roll of continuous tubing. Blown stretch film provides greater tear resistance, tension retention and scuff resistance than cast film, making it ideal for heavy industrial loads, irregular loads and loads with sharp corners. |
Blown-Film Extrusion |
Blown-film extrusion is a process for forming plastic films. Blown-film extrusion involves a molten resin extruded through a circular die and filling the tube with air. The air within the tube stretches the film to obtain the desired thickness. |
Board |
papers equal to or greater than 220gsm. |
Bottle |
A container having a round neck of smaller diameter than the body and an opening (finish) capable of holding a closure. The cross section may be round, oval, square or other shape. The raw material may be glass, plastics, ceramics, earthenware, etc. |
Bottle carrier |
A package used to carry multiple bottles, usually incorporating a handle. |
Bowl feeder |
vibratory bowl used to feed components up a spiral ramp. |
Box |
A rigid container, generally rectangular in shape, having closed faces. See also: Carton, Case and Crate. |
Box pallet |
The combination of a large case (corrugated board or wood) and a permanently attached pallet. |
Boxboard |
A general term designating the grades of paperboard used for fabrication of folding cartons. |
Breathing package |
A package designed so that air may enter or leave under varying conditions, such as temperature changes. |
Bromide |
Photographic Paper with an image on it for placing under camera. Belongs to a bygone age, all in 10 years. |
Brown Kraft |
This material is naturally brown in appearance and the shade varies depending on the location of the mill, the source of fibre and the pulping process. |
Brown Kraft. |
Unbleached Kraft. Can be plain or have a simulated Ribbed effect. |
Bubble Wrap |
Bubble wrap is a light and flexible packaging material made of low-density polyethylene. Bubble Wrap is an inner packaging solution which performs very well when used for blocking and filling. There are several different bubble sizes available and the wrap can be dissipative or conductive. |
Bulk Container |
A large container which was designed to carry bulk cargo. |
Caliper |
The precision instrument which is used to measure the thickness of paperboard sheets. This is measured in thousandths of an inch. |
Calliper |
the thickness of a sheet of board. |
Cardboard |
Cardboard is a very common packaging material made up of layers of paper pasted together to form sheets. Cardboard is often laminated to provide barrier properties. |
Carload |
Usually 40,000 pounds of paper. |
Carton |
a container made from folding boxboard and supplied flat for erection when filling. |
Carton blank |
an unglued carton, which is glued during the filling process. |
Cartonboard |
material of defined substance and thickness made from one or more layers of paper to form a rigid or semi-rigid sheet. |
Cartoning machines |
Cartoning machines are packaging machine that form cartons: erect, close, folded, side seamed and sealed cartons. |
Case |
In terms of packaging, a case is similar to a tote. Cases are usually made of plastic and similar in concept to the briefcase. |
Cast Film |
Plastic sheeting or film produced from synthetic resins. A molten resin is extruded through a slot or flat die to form a thin film or molten sheet. |
Cat’s whisker |
the sharp pointed protrusion from a blister that can arise when using a cross cutting blade and slitter to cut out individual packs on a form fill seal machine. |
Cavity wall |
a carton or fitment where the sidewalls are constructed so as to form a hollow frame effect. |
Cellophane |
Cellophane is a thin transparent film formed from cellulose fibres. Cellophane is widely used in food packaging due to its high moisture barrier properties. Cellophane is extremely flexible and easily heat sealed. |
CEPS |
Abbreviation for color electronic prepress systems, a high-end, computer-based system that is used to color correct scanned images and assemble image elements into final pages. |
CFR, Cost and Freight |
Incoterm (… named port of destination) “Cost and Freight” means that the seller delivers when the goods pass the ship’s rail in the port of shipment. The seller must pay the costs and freight necessary to bring the goods to the named port of destination BUT the risk of loss of or any damage to the goods, as well as any additional costs due to events occurring after the time of delivery, are transferred from the seller to the buyer. The CFR term requires the seller to clear the goods for export. This term can be used only for sea and inland waterway transport. If the parties do not intend to deliver the goods across the ship’s rail, the CPT term should be used. |
Chase |
a frame used for locking cutting forms in place. |
Check character (check digit) |
a character calculated from the numerical value of the other characters in the code that is used to ensure that the code is correctly processed. |
Chevron pouch |
a pouch where one end seal is in the shape of a chevron (like sergeants stripe). |
Chrome |
Alternate term for Transparency. |
CIF, Cost, Insurance and Freight |
Incoterm (… named port of destination) “Cost, Insurance and Freight” means that the seller delivers when the goods pass the ship’s rail in the port of shipment. The seller must pay the costs and freight necessary to bring the goods to the named port of destination BUT the risk of loss or damage to the goods, as well as any additional costs due to the events occurring after the time of delivery, are transferred from the seller to the buyer. However, in CIF the seller also has to procure marine insurance against the buyer’s risk of loss of or damage to the goods during the carriage. Consequently, the seller contracts for insurance and pays the insurance premium. The buyer should note that under the CIF term the seller is required to obtain insurance only on minimum cover. Should the buyer wish to have the protection of greater cover, he would either need to agree as much expressly with the seller or to make his own extra insurance arrangements. The CIF term requires the seller to clear the goods for export. This term can be used only for sea and inland waterway transport. If the parties do not intend to deliver the goods across the ship’s rail, the CIP term should be used. |
CIP, Carriage and Insurance Paid To |
Incoterm (… named place of destination) “Carriage and Insurance paid to…” means that the seller delivers the goods to the carrier nominated by him but the seller must in addition pay the cost of carriage necessary to bring the goods to the named destination. This means that the buyer bears all risks and any additional costs occurring after the goods have been so delivered. However, in CIP the seller also has to procure insurance against the buyer’s risk of loss of or damage to the goods during carriage. Consequently, the seller contracts for insurance and pays the insurance premium. The buyer should note that under the CIP term the seller is required to obtain insurance only on minimum cover. Should the buyer wish to have the protection of greater cover, he would either need to agree as much expressly with the seller or to make his own extra insurance arrangements. “Carrier” means any person who, in a contract of carriage, undertakes to perform or to procure the performance of transport, by rail, road, air, sea, inland waterway or by a combination of such modes. If subsequent carriers are used for the carriage to the agreed destination, the risk passes when the goods have been delivered to the first carrier. The CIP term requires the seller to clear the goods for export. This term may be used irrespective of the mode of transport including multimodal transport. |
Closing Systems |
Usually there is the need to close a corrugated box, fix a container to a pallet, which is basically to keep the package as a one piece solution. Therefore it’s very important that we chose the correct product to perform well this operation. It is also important that the procedure is done in the correct and efficient way in order that all the elements in the packaging (f. corrugated box, foam, and closing system) work in the correct way. For types, see Adhesive Tapes, Straps, Packaging Machines, and Stapling. |
Closure |
means used to close a package where no seal is formed |
Closure integrity |
Condition of the closure that ensures that the closure presents a microbial barrier to at least the same extent as the rest of the packaging |
Co extrusion |
a multi-layer structure prepared by extruding a number of polymers through a single die (with tie layers as necessary). |
Co-extrusion |
The process of making a film which is say, HDPE on one side, and LDPE on the other. Eg. a rope handled carrierbag can be HDPE (naturally matt and tactile) on the outside, with the puncture resistance and elasticity of LDPE on the inside |
Coated |
A clay and other material coating on paper to make it smoother and less absorbent to ink. Produces a smooth finish and better print but can rub off and crack on folds taking the ink with it. Therefore usually laminated to protect the ink from cracking. |
Cohesive failure |
failure of a bond within the adhesive itself. |
Cold Seal |
Cold seal is an adhesive coating on laminates or plastic films that is pressure sensitive and allows packages to be sealed with minimal or no heat pressure. |
Colour Separation |
The instructions for a multi color job, or the process of scanning a multicolor image such as a transparency to isolate the 4 process colors of Cyan, Magenta, Yellow, & Black. |
Compliance qualification |
Documented evidence that packaging meets the requirements for packaging for terminally sterilized medical devices based on testing for conformity to an agreed material specification |
Condensation |
When the temperature of the metal surface is lower than the surrounding air, water condenses on the metal surface. Example: In a watertight enclosure, temperature is 20°C and Relative Humidity (%HR) is 80%. If temperature drops to 15°C, then water condenses. |
Conductive Materials |
Conductive materials allow charge (electrons) to move freely across their surface or through their volume. Charge placed in one spot on a conductive object will flow around the object so that all parts of the object share the same charge. If the charged conductive material makes contact with another conductive material or ground, the electrons will transfer between the materials or to ground quite easily. Electrostatic charge can be created triboelectrically on conductive materials. As long as the conductive material is isolated from other conductors or ground, the static charge will remain on the conductive material. A conductor does have some shielding capacity, (depending on the thickness). Typical products: “Black” -boxes. See ESD |
Container |
An item which product(s) are stored in. In the transport packaging industry, containers are used as storage for cargo during shipping, and often are made of wood, steel, or plastic materials.Also; A trailer body that can easily be detached from a truck chassis for loading onto a vessel, a rail car, or stacked in a container depot. A container may be varied in length and width. Containers may be ventilated, refrigerated, insulated, vehicle rack, flat rack, open top, bulk liquid or equipped with interior devices. Alternatively:
Putting goods into a standardized unit that can be handled by mechanized and frequently automated equipment. |
Contaminants |
any unacceptable or unintended trace materials. |
Conveyor Belts |
A belt designed to carry materials and transfer them from one place to another. |
Conveyor systems |
A mechanical system used for carrying bulk material packages and objects from one place to another, e.g. conveyor belts. |
Corona Treatment. |
The process of treating polyethylene film to give it a "key" to retain flexographic ink |
Corrosion |
Corrosion is a natural process. When products are fabricated out of iron, or other metals, it is natural for them to return to their original state. The metal begins to release its stored up energy by reacting with oxygen. This process is called corrosion. Factors Influencing Corrosion- The most common oxidation component influencing corrosion is the oxygen in both air and water. That is why meteorological elements such as: temperature, moisture are main factors influencing corrosion. Also, because of meteorological variations between two geographical points, products are subject to climatic stress. Different Forms of Corrosion: There are several types of electrochemical corrosion, depending on the material and the corrosive environment:
1. General corrosion. The surface effect produced by most direct chemical attacks (e.g., as by an acid) is a uniform etching of the metal. 2. Electrochemical corrosion. The most common form and it can vary depending on metals and the local environment. 3. Atmospheric corrosion. Corrosion in air is the most relevant to transport packaging design. |
Corrugated |
Corrugated is made from paper made up cellulose fibres which can be virgin or recycled. The board consists of formed fluting that is faced with a liner on both sides. Corrugated board consists of one or more sheets of fluted paper adhered to one or more liner papers. The manufacturing process requires at least two layers of paper, very high humidity (steam), glue and heating only, that’s why corrugated is treated as environmental friendly product. A variety of boards are made using variations of:
· Liner material · Fluting medium · Board construction |
Corrugated Board |
Made by a corrugator, corrugated board is a structured board formed by gluing one or more arched layers of corrugated medium to one or more flat-facing linerboards. |
Corrugator |
A machine that produces corrugated board by attaching fluting to liners. |
Crash-bottom carton |
a carton where the base panel locks in place when the body is squared up. |
Crashlock base |
a carton where the base locks in place automatically when pressed from opposite corners. |
Dart Drop |
A method of measuring a film’s impact strength or dynamic toughness. A hemispherical shaped, weighted "dart" is dropped onto a film sample. |
Deboss |
Whan an image is pressed into paper so it lies below the surface. |
Development |
process of refining a prototype design or process to meet established product criteria |
Die |
(i) solid sheet or cylinder into which knives and rules are fixed to create carton shapes. (ii) solid sheet or cylinder into which knives are fixed to create label shapes. |
Die-cut labels |
labels that are cut to shape by a cutting die. |
Double tuck carton |
carton in the form of a sleeve, with extended side flaps that tuck in to form the end closures. |
DPI |
Dots per Inch. Tones and process print are produced by printing millions of tiny dots of each selected colour. Graduations and photographic effects are therefore possible. DPI refers to the number of dots per line inch, so it is a measure of courseness or fineness of print. Typical dpi's are 55dpi for a Flexo Stack Press, to 100-130 for a Flexo CI Press. 175dpi is fairly typical for offset litho in carrierbag printing, dependent on paper finish. Please note the metric equivelant is dots per centimetre- expect about 2.5 times less! Beware that inch or centimetre is often unspecified. Also: LPI. Lines per inch, same as DPI. Don't confuse DPI with Percentage which is the size of the dot. |
Duplex board |
a multi-ply board mainly made from mechanical pulp with a bleached chemical pulp facing layer. |
Duplex Paper |
Paper with different colours or different finishes on either side of the sheet. |
Elastic Recovery |
The ability of a material to return to its original shapes or sizes after having been deformed or subjected to strain. |
Emboss |
When an image is pressed into paper and lays above the surface. |
Embossing |
Creating a raised area, eg over text to enhance it. Embossing does not have to follow a print area: blind embossing. Debossing is to produce a depressed area to similar effect. |
EVA |
Eva ethyl vinyl acetate. Added to LDPE Freezer Bags to maintain flexibility when cold. |
Extruded film |
The process in which the extrusion of molten resin occurs through a die, which then produces a film. |
Extruder |
A machine which produces Polyethylene film. Granules are melted and drawn out in a tube bubble to cool. The quicker the film is drawn out, the thinner the film, and the bigger the bubble, the wider the film. The tube is often then slit and wound ready for printing. |
Extrusion |
The process of feeding, melting, and pumping a material such that a desired shape or configuration can be created. It is a continuous process and utilizes a device similar to a meat grinder. |
Failure |
event in which a component of the package does not perform one or more of its required functions within the specified limits under specified conditions |
Failure analysis |
logical, systematic examination of an item to identify and analyze the probability, causes and consequences of potential and real failures |
Fill and Sealing machine |
This is a packaging machine that combines the functions of filling and closing in one machine. |
Filling Machine |
A packaging machine that measures a product from bulk by some predefined value, e.g. volume, mass, or level in a container. |
Film |
A film can be defined as a thin layer of material usually made of transparent plastic often used to cover or wrap things. |
Film coat |
Paper with a very thin coating. |
Final package |
primary containment system in which the product is sterilized (excluding shelf cartons and shipping containers) that protects the contents to the intended level over a specific period of time.
Note The intended level may be e.g. a barrier to physical, microbial or chemical challenges |
Flexible Packaging |
Flexible packaging is material such as paper or foil used to form packaging for items such as bags, pouches, envelopes, etc |
Flexographic |
A printing method used for printing polythene and paper, using rotating blocks on cylinders to pick up ink from an anilox and place the ink on the material to be printed. Nearly all polythene is printed this way, and most volume paper carrierbags and flexible packaging. |
Flexographic Printing |
Flexographic printing is a roller with a flexible rubber-like surface coated with quick-drying ink. The roller has a raised print pattern which rolls over the designated material to print a sharp, clear image. |
Flexography |
a rotary printing process that prints by the use of flexible relief plates that directly apply the image to the substrate |
Flute |
A single ridge in the arched layered fluting medium on the corrugated roll. |
Fluting |
Fluting is paper or board that has been transformed into a series of parallel arched layers, making up the ridged section of the corrugated board between liners. |
Foil |
rolled metal in flexible sheet form. Typically this is aluminium sheet, available in a range of thickness. |
Folding Carton |
Folding cartons are boxes pre-manufactured and delivered in flat-form ready to be erected by the user. Using folding cartons saves on delivery costs and allows the user to brand the packages before using them. |
Form-Fill-Seal Machine |
Form-fill-seal machines use heat-sealable plastic film to form a pouch, which is then filled with a product, sealed and cut. |
Form/fill/seal |
a system where packs are formed (typically from film or foil), filled and closed in one continuous operation. |
Fusion Bag Filling |
A packaging machine in which a pre-made bag is taken from a magazine, opened, filled with product and then sealed. |
Gauge |
1. The unit of measurement of the thickness of films and foils. Expressed in microns or mils. (1 mil = 25 microns; 100 gauge = 1 mil). 2. An instrument for measuring thickness or length. |
Gauge Band |
A conformation irregularity found in rolls of material. A thick area in a film will produce a raised or elevated ring in a finished roll of product. Conversely, a thin area will result in a soft ring in a finished roll. |
Gloss |
A type of smooth finish on paper or ink that reflects a relatively large amount of light. |
Glue |
An adhesive usually based on gelatin extracted from animal wastes. Often a general term for any adhesive. |
Gravure |
a printing process where the image is engraved (electronically or chemically) in the form of cells in the surface of a metal cylinder. Ink is transferred to the substrate by passage between the inked cylinder and an impression cylinder under pressure.
Alternatively: When a pattern is engraved into a material by means of an engraved roller plate. The engraved plate is filled with ink and rotated on a cylinder over the designated material which then transfers the image onto it. |
Greaseproof |
A grease & fat resistant paper. Also Glassine (Least resistant), Vegetable Parchment (more resistant than Glassine, whiter than Greaseproof) Greaseproof (most resistant) |
GSM |
A measurement of paper. Literally, Grammes per square meter. ie if a square meter of paper were weighed, how many grammes would show on the scales. It is worth remembering, if you buy a lot paper, that it is a measurement of weight, not thickness or strength. A Kraft, which is relatively dense and with long strong fibres, will be thinner than a bulkier, less dense Art of the same GSM. The Kraft is likely to be stronger, but the Art may well exhibit more bulk and be more rigid. |
Gusset |
the folded inward portion of a flexible bag. |
Hand Film |
Stretch film designed for hand application. |
HDPE |
High Density Polyethylene. The high density refers to the density of molecule chain in the polyethylene. More "crinkly and crackly" than LDPE, and can be supplied as thin film, eg 8-18 Micron economical counterbag or carrierbag, or as "thick film" 30-120 Micron carrierbag. |
Heat Seal Coating |
A method of sealing two thermoplastic coatings to a material to protect it. It is sealed with adhesive, glue or wax which is set at a certain temperature and pressure. |
Heat shrinking |
application of heat to shrink a band of plastics material around product. |
Heat-seal able film |
film that may be joined to itself or another substrate through the use of heat and pressure (without the use of adhesives). |
Heat-sealing |
joining together by using heat and pressure. |
Heat-sealing adhesive |
an adhesive coating previously applied that forms a bond between two surfaces when heat and pressure is applied. |
Heat-Transfer Printing |
Heat-transfer printing is the process used to transfer ink on a carrier paper to another surface. When heat and pressure is applied to the carrier paper, the ink is transferred. The types of heat transfer printing paper vary depending on the different receiving surfaces such as ceramic, cloth and heavy fabrics. |
Hermetic Seal |
A seal that excludes air and will be leakproof at normal temperatures and different atmospheric pressures. |
Holographics |
A photographic system which uses laser lights to expose film patterns, which when viewed forms a 3D image called a hologram. When looking at the hologram light will reflect off it and may change its image depending on which angle it is being looked at. Holographics are commonly used for quality control and copy-protection. |
Impulse sealing |
short rapid electrical resistance heating of metal strip or wire to seal plastics film. |
Index paper |
Light weight board paper for writing and easy erasure. |
Injection Blow Moulding |
Injection blow moulding is a process used in the packaging industry to mould plastic products. A molten polymer is injected into a mould around a core rod to form the exterior of the shape and the screw neck. The polymer is then transferred to a different mould where the core rod opens to allow compressed air in, which expands the polymer into the shape of the new mould resulting it its finished shape. Products made by the injection blow molding process include bottles, caps and boxes. |
Ink Jet Printing |
The ink jet printing method uses jets of ink droplets sprayed through computer nozzles, controlled by digital signals to create images on paper. |
Inspection machines |
A packaging machine that inspects products, packages or packaging components, for a particular attribute (e.g. size, color, mass), and reject items which fall ouside the pre-set values. |
IR Coating |
A liquid laminate coating which is bonded and cured with infrared lighting. |
ISPS Code (International Ship & Port-Facility Security) |
ISPS code is a new, comprehensive security regime that seeks to establish an international framework of co-operation between governments, government agencies and the shipping and port industries in order to detect and take preventive measures against security incidents affecting ships or port facilities used in international trade. |
Jiffy Bag |
A padded envelope in which many kinds of objects can be placed in and posted without fear of breaking. |
Kraft |
A high quality construction paper which can be additionally clay coated one or both sides. Strong paper, usually brown, used for wrapping purposes and to make brown paper bags. |
Labeling Equipment |
Labeling equipment is used to apply labels, codes, decorations and other markings to packages. |
Laminate |
a material made by joining together complete surfaces of any combination of films, foils and papers. |
Lamination |
A product consisting of two or more sheets or cellulose acetate films joined together, with glue, adhesive or wax, this is normally used to protect the object from being tampered with or to protect it from destructive particles. |
LDPE |
Low Density Polyethylene. The low density refers to the density of molecule chain in the polyethylene. It is more elastic (stretchy) and tears less easily than HDPE. It has a softer feel and is more glossy than HDPE. Can be mixed with HDPE to make a blend. |
Lidding Stock |
Material which is used to seal a blister pack. |
Litho |
Short for Offset Lithography. A printing method used for printing paper. A non relief process based on the principle of oil repelling water on re-usable flexible metal plates. Produces a higher quality image than Flexographic on paper and is used for top of the market handmade carrierbags. |
Lithography |
A method of printing using a chemically-coated flat stone such as limestone or a metal plate which is treated. The image areas that are to be printed on attract ink and the non-image areas repel the oil based ink. |
LLDPE |
Linear Low Density Polyethylene |
Logistics |
Logistics is a management body responsible for controlling the procurement, transportation, and flow of goods and materials needed for a certain project or operation. In military terms it can also involve movement of personnel. |
Machine Direction |
Perpendicular to film web width |
Machine Films |
Stretch film designed for stretch film equipment. |
Machine Finished. |
(MF) a process of mechanically polishing paper between cylinders |
Machine Glazed |
(MG). Usually on Kraft of 60 GSM up. Rougher than MF |
Manila paper |
A strong, buff-colored paper used to make envelopes and file folders. |
Mechanically Furnished Paper |
Paper eg newsprint paper, made from low quality pulp, eg trees minus their leaves but including bark and pulped mechanically. The paper will have remaining lignin and other "impurities" which is why your newspaper turns yellow in the sun, and who knows, may grow back into a tree when planted. |
Metallocene |
Newly developed polyethylene resins produced using "Metallocene" catalyst. It allows the resin manufacturer to custom tailor properties. Compared to other linear low density resins, Metallocene resin stretch film .can achieve greater puncture resistance and greater clarity. |
Microbial Barrier |
Attribute of a packaging system which prevents the ingress of microorganisms under specified conditions |
Micron |
Metric measurement of thickness of Polythene film or Card. 1 Micron = 4 gauge. eg 45 Micron = 180 gauge. See gauge. Interestingly, (well, we think interesting) Polythene is specified in Micron, (Thickness) but Paper is usually specified in GSM, which is a unit of weight. |
Millinery Paper |
Lighter GSM-Ribbed Brown Kraft used for counterbags, not often seen now. |
Mimeograph |
A cheap method of printing using a plastic stencil made by hand which is mounted on a rotating drum containing ink. It can print off up to several thousands of copies at a time. |
Modified Atmosphere Packaging |
A preservation technique used to prolong the shelf life of processed or fresh food by changing the composition of the air surrounding the food in the package. Modified Atmosphere Packaging (MAP) is used for different products, therefore the gas mixtures within the package depends on the product type, temperature and packaging materials. |
Modified Atmosphere Packaging (MAP) |
a process by which air in a pack is replaced with another gas. |
Mullen Tester |
A machine which is used to test the bursting strength of paper. |
Non Destructive Testing (NDT) |
Non Destructive Testing (NDT). Testing to find defects in materials using techniques that do not damage or destroy the items being tested. |
One-trip |
A pack or container which is designed for single use only. |
Opacity |
Characteristic of paper that helps prevent printing on one side from showing on the other. |
Opaque |
Opaque materials do not allow light to pass through them. Opaque pouches, PVC film and ink for labels are commonly used in the packaging industry. |
Over wrap |
a wrapping enclosing one or more packs. |
Package integrity |
unimpaired physical condition of a final package. |
Packaging compatibility |
attribute of the packaging material and/or system to allow it to achieve the required performance without detrimental effect on the medical device |
Packaging material |
any material used in the fabrication or sealing of a packaging system or primary package. |
Pallet |
Wooden, Plastic, Steel Or Carton Board platform used as a base for loading and moving paper and printed products. |
Parallel tuck carton |
Carton where both tuck ends are attached to the same panel |
Patch |
A transparent patch glued on the inside of an aperture handle carrier bag to reinforce the handle area. |
Peel strength |
the measured stress through peeling of a bonded surface resulting in an adhesive failure. |
Plug lid |
a removable lid that is a push fit into the opening of a container. |
Polyethylene Terephthalate |
PET is a thermoplastic created when two substances react to form a resin with good resistance and barrier properties against sunlight, oil and grease. |
Pouch |
a rectangular bag with three sides sealed prior to filling and closing. |
PP |
Polypropylene Film: Two types: Cast: Very clear, but tears easily in some directions. Used for food packaging. Blown: May be less clear but tear resistant in all directions. Polypropylene Ropes: When woven, produces a gloss finish compared with cotton or Acrylic. |
PP Polypropylene |
A mono-layer blister film which is used for packaging pharmaceutical goods. It is rigid, lightweight and flexible at low temperatures and primarily used as an insulation material. |
Primary package |
sealed or closed packaging system that forms a microbial barrier, enclosing a medical device. |
Printer-slotter |
A printing machine which also converts corrugated board into cases using either simple wheel or cross creasing and punch-slotting devices |
Push Fit Closure |
A closure, usually plastic, that is pushed into the opening or neck of a container to form a seal and is held in place by friction. |
PVC: Polyvinyl Chloride |
A form of thermoplastic polymer. PVC is a very common material and is used for a huge range of products such as plastic cards, piping, window and door frames and many packaging purposes. |
Reactor |
The equipment used to transform ethylene gas to polyethylene. |
Release Coating |
A coating which is applied to label backing paper to aid removal of self-adhesive labels. |
Release Paper |
Backing paper for self-adhesive labels which can be easily removed. |
Reverse Tuck in End Carton |
A carton where the end tuck flaps are extensions of opposite carton faces. |
Ribbed Brown Kraft |
Brown Kraft with a shaded stripes to simulate a Ribbed watermark, originally the mark left by the wire mesh on extraction from the paper pulp. |
Roping |
A method of bunching stretch film. |
Rubber |
A traditional name for Flexographic printing blocks or stereos, because they were originally made from... natural rubber. |
Sachet |
a small flexible package made by bonding two layers together on all four sides. |
Seal strength |
mechanical strength of the seal. |
Self-adhesive |
an adhesive that bonds by pressure only. Used for pressure-sensitive labels. |
Shelter |
Containers or modules in different configurations for various use and needs. |
Shrink Sleeve |
is a process where a printed sleeve-like plastic film is inserted over the product, then moves by the means of conveyor belts to a heat or steam tunnel where it shrink to fit the product. |
Shrink Wrap |
Shrink wrapping is thin, tight fitting plastic wrap used in packaging. When passed through a heat source, the film shrinks in to the shape of the wrapped product. |
Shrink wrapping |
over-wrapping in plastic film, which retracts when heated to produce a tight wrap. |
Shrink-banding |
heat tightening of a band of plastic material, to collate goods or seal a closure (may alternatively be achieved by moisture loss from a cellulose band). |
Skid |
Alternate term for Pallet. |
Skin packaging |
using vacuum to pull heat-softened plastic film tightly over a product whilst sealing the film to an underlying porous surface. |
Sterile fluid-path packaging |
system of protective port covers and/or packaging designed to ensure sterility of the portion of the medical device intended for contact with fluids. |
Sterilisation Compatibility |
Attributes of the packaging material and/or system that allow it to withstand both the sterilization process and to attain the required conditions for sterilization within the final package. |
Sterilization compatibility |
attributes of the packaging material and/or system that allow it to both
withstand the sterilization process and attain the required conditions for sterilization within the final package |
Stretch Film |
Product shipments will have protection from damage since packages are kept together and no dust or dirt will get in. The transparency allows for visual inspection and can in some cases speed up handling. Stretch film is an easy and simple solution and it is possible to either manually wrap the film around the packaging or to use a machine. |
Stretch wrap or stretch film |
a highly stretchable plastic film that is wrapped around items. The elastic recovery keeps the items tightly bound. It is frequently used to unitize pallet loads but also may be used for bundling smaller items. The most common stretch wrap material is linear low-density polyethylene or LLDPE but other types of polyethylene and PVC can also be used. Many films have about 500% stretch at break but are only stretched to about 100 – 300% in use. Other properties such as break strength, cling, clarity, tear resistance, puncture resistance, static discharge, etc. are also important. |
Stretch wrapping |
a method of wrapping/collating product with an elastic film under tension. |
Stretchability |
A combination of factors related to the ability of a material to be stretched or elongated (i.e. how easily does a film stretch, how much will it stretch, does it return to its original length?) |
Supercalender |
To calender paper extensively until very glossy. |
Symbology |
the system of representing data in a bar code. |
Tackifiers |
Chemical substances added to increase the "tack" of the parent or base material. |
Tamper-evident closure |
a closure that incorporates a feature that indicates any unauthorised tampering or interference. |
Tear Resistance |
The resistance of the film to be torn. This is quantified by Elmendorf Tear testing, and is measured as the force required to propagate an initiated tear in the MD or TD direction. |
Terminally sterilized |
term for medical devices that are sterilized after being completely sealed or enclosed in at least the primary package. |
Text paper |
Grade of paper characterized by textured surfaces. |
Thermal printing |
the system whereby direct heating of the paper by the print head produces an image. |
Thermal transfer printing |
the system where the heating, by a print head, of an ink layer on a thin film, causes ink to be released and transferred to a substrate. |
Thermoform/fill/seal |
a system where packs are thermo-formed from a plastic sheet; then filled and lidded in one continuous operation. |
Thermoforming |
A process of forming thermoplastic sheet by heating a sheet of plastic and transforming it in to a surface mold. |
Thermoplastic |
Thermoplastic is a type of plastic that will repeatedly soften when heated and harden when cooled. The plastic can be moulded and shaped when heated, keeping its shape when cool. |
Thermoset |
A plastic material that will undergo or has already undergone a chemical reaction through heat or catalysts to form a solid. Once the material has been heated, it does not go back to its original state and does not soften when reheated. |
Thin Film |
Used to describe HDPE bags of around 25 Micron and less. |
Toner |
Powder forming the image in photocopy. |
Transparency |
Positive photographic image, usually in color, on film allowing light to pass through. |
Transverse Direction |
Direction across the stretch film web. |
Tyvek® |
a Dupont product. Non-woven spun bonded, polyethylene sheeting with good bacteria penetration resistance; made from very fine, high-density polyethylene fibres. |
UV coating |
Liquid laminate bonded and cured with ultraviolet light. |
UV ink |
Cures under ultra violet light. More rub-proof than water or solvent based inks. |
Vacuum forming |
Vacuum forming is a method for thermally shaping a flat plastic sheet in to a three-dimensional shape by heating the sheet and withdrawing the air between the sheet and mold. |
Vacuum pack |
a package from which the air has been withdrawn before sealing. |
Vacuum packaging |
the withdrawal of air from a pack immediately prior to sealing its closure. |
Vacuum Packing |
When a machine withdraws the air from the plastic packaging prior to sealing the product. Often used with food to stop air particles from contaminating food. |
Varnish |
Clear liquid applied like ink on press for beauty and protection. |
Vest Style |
A supermarket style of carrierbag, originally patented, where the handle is cut out of a pre-folded and welded tube, effectively creating 8 thicknesses of material to carry the weight of a weekly shop in a material which may be only 15 Micron thick. |
Web Press |
A printing press which has a rotary action, and uses large rolls of paper, poly or foil. |
Wet Strength Paper |
An additive which is put into the paper when manufactured which prevents the paper from breaking apart when it comes into contact with moisture. |
Wirebound Box |
A box made from wood or plywood bound together and supported by wire. The box is sealed by twisting the wire ends. |
Woodfree |
A type of paper. Confusingly, does not mean made from a wood free pulp. It is chemically rather than mechanically pulped paper. Very white compared with Kraft and retains its whiteness, but shorter fibres give less mechanical strength compared with Kraft or Art. Can be clay coated. |
Wrapping machines |
A packaging machine that wraps flexible packaging material, e.g. Paper, plastic film, aluminum around a product or group of products. |
Zip Seal Bag |
A bag which is resealable and reclose able by two plastic components interlock at the top of the bag. It is reusable and flexible. |
Zippering |
Lack of resistance to tear propagation or an initiated TD cut or tear. Once the film has been torn or cut, the resulting slip rapidly opens and completes a full web break. |
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