Step 1: To obtain a registered GTIN (EAN) number
Before a company can begin using barcodes, they must first to obtain the numbers (GS1 Identification Keys) that go inside the barcode. GS1 Identification Keys are available for trade items, logistic units, locations, parties, assets, coupons, etc. which are unique all around the world and can be used to identify everything in the supply chain. The identification key for a trade item (product) is called GTIN. This is the number seen beneath a barcode and starts with prefix 890. We do this job for you. Apply.
Step 2: Find how many different GTIN (EAN) numbers do you need
It depends on the number of products and packaging sizes.
For example if you sell three types of olive oil in packs of 1 and 5 litres, you need 6 different EAN-13 numbers.
If your business is clothing or shoemaking, for example, you’ll need different barcodes for each size and color of the clothes or shoes you sell.
In general, different products require different EAN-13 codes (even if they have the same price).
Step 3: Select a barcode printing process
To begin, you should decide what you are barcoding and if the barcode will carry static or dynamic information inside it.
If the information is static (always the same), the barcode can be printed using traditional printing presses directly on the package (e.g., tea carton) or on a label that is applied to the package (e.g., label on a juice bottle.)
• If the product requires multi-colour graphics and a barcode with dynamic data, the graphics could be pre-printed using traditional printing presses and leave a blank portion of the label for digital printing inline during production and packaging.
• If the product only requires text and a barcode with dynamic data, a label could be printed inline and applied to the package (automatically if high volume or by hand if low volume). It could also be printed directly on the package itself without using a label.
• Also, a barcode with static data could be printed directly on the package using a digital printing method, for example when the same packaging is used for different products.
Traditional: flexography and offset
Digital: thermal and laser
Direct Marking: e.g. etching, engraving
Step 4: Select a "primary" scanning environment
The specifications for barcode type, size, placement, and quality all depend on where the barcode will be scanned. By knowing where your barcode will be scanned you can establish the right specifications for its production.
Barcodes to be scanned at the retail point-of-sale will need to support omni-directional scanning.
If the barcode will be scanned at point-of-sale as well as in the warehouse, you will need to use a symbol that accommodates point-of-sale scanning, but printed in a larger size to accommodate scanning in the distribution process.
Barcodes on healthcare items to be scanned in hospitals and pharmacies do not require omni-directional scanning, unless the items are also scanned at retail Point-of-Sale.
General Distribution and Logistics
Direct part marking
Step 5: Select a barcode
Selecting the right barcode is critical to the success of your barcode implementation plan, here are some high-level tips:
• If you need to barcode a trade item that will be scanned at the retail Point-of-Sale (POS), first symbol of choice is the EAN/UPC symbol. This symbol is guaranteed to be scanned by POS systems all over the world.
• If you are printing a barcode with variable information like serial numbers, expiry dates, or measures, then you will use GS1-128, GS1 DataBar, or GS1 DataMatrix (2D symbol). • If you want to encode a URL into a barcode to make extended packaging information available to the end consumer, then you should use a GS1 2D symbol (e.g. GS1 OR code).
• If you need to barcode an outer case to be scanned in a logistics environment, and you want to print directly on corrugated carton, ITF-14 may be the choice for you. We do this job for you. Apply.
Step 6: Pick a barcode size
After the correct barcode symbol is specified together with the information to encode in it, the design stage begins. The size of the symbol within the design will depend on the symbol specified, where the symbol will be used, and how the symbol will be printed.
The X-dimension is the specified width of the narrowest element of a barcode. X-dimensions are used together with the symbol heights to specify the permissible symbol sizes.
For each scanning environment the relevant symbols are listed with their target X-dimension and corresponding target height. Besides the target sizes also the allowed minimum and maximum sizes are specified.
EAN/UPC Symbols are designed for scanning by retail omni-directional scanners. This means that EAN/UPC Symbols have two segments which are taller than they are wide. There is a fixed relationship between symbol height and width. When one dimension is modified, the other dimension should be altered by a proportional amount.
Consideration of the printing process
The final major consideration for symbol size is the capability of the selected printing process. The minimum size (magnification) and correct Bar Width Reduction (BWR) for a symbol varies by printing process and even from press to press. Printing companies should establish a minimum symbol size (magnification) and BWR to achieve acceptable and repeatable quality results.
EAN/UPC symbols are suitable for omnidirectional scanning since they can be read from all directions by a fixed scanner.
We do this job for you. Apply.
Step 7: Format the barcode text
The text beneath a barcode, called Human Readable Interpretation (HRI), is important because if the barcode is damaged or of poor quality to begin with, then the text is used as a back-up.
Here are some of the most frequently asked questions on HRI:
- Does the Human Readable Interpretation need to be a certain size?
The human-readable text must be clearly legible and in a size proportional to the symbol size.
- Is the Human Readable Interpretation supposed to be above or below the symbol?
HRI should be placed below the barcode and grouped together wherever physically possible while maintaining the HRI legibility and minimum barcode height.
- I see parentheses around the Application Identifiers (Al) under some barcode symbols. Are they supposed to be there and are they encoded in the bars and spaces of the symbol?
All Als must be enclosed in parentheses in the Human Readable Interpretation, but the parentheses are not encoded in the symbol.
- How many digits do I print beneath the EAN/UPC Symbol in the Human Readable text?
You must print 13 digits below the EAN-13 Symbol.
You must print 12 digits below the UPC-A Symbol.
You must print eight digits below UPC-E and EAN-8 Symbols.
We do this job for you. Apply.
Step 8: Pick a barcode colour
The optimum colour combination for a barcode symbol is black bars with a white background.
If you want to use other colours, the following may help you in choosing satisfactory ones:
• GS1 barcodes require dark colours for bars (e.g., black, dark blue, dark brown, or dark green).
• GS1 barcodes require light backgrounds for the Quiet Zones (area free of printing around the barcode) and spaces (e.g., white). • GS1 barcodes require light backgrounds for the Quiet Zones (area free of printing around the barcode) and spaces (e.g., white).
• In addition to light backgrounds, "reddish" colours may also be used. If you have ever been in a darkroom with red lighting and tried to read red copy, you know it can virtually disappear. This is also true of similar colours such as orange, pink, peach, and light yellows. Given the fact that most barcode scanners use a red light source, you can quickly see why these colours may be suitable for backgrounds, but should be avoided for bars.
• In many cases the symbol background is not printed and the colour of the packaging substrate is used as barcode background. However, if the symbol background is printed beneath the bars, the background should be printed as solid line colours.
• If you use multiple layers of ink to increase the background opacity, each layer should be printed as a solid colour.
• If you use a fine screen to deliver more ink to the substrate, be sure there are no voids in the print caused by the screen not adequately filling in.
We do this job for you. Apply.
Step 9: Pick the barcode placement
When discussing symbol location we are referring to the symbol placement on the design.
When assigning symbol placement first the packaging process should be considered. You should consult the packaging engineer to make sure the symbol will not be obscured or damaged (e.g., over a carton edge, beneath a carton fold, beneath a package flap, or covered by another packaging layer).
After determining the proper placement, the printing company should be consulted. This is because many printing processes require barcodes to be printed in a specific orientation to the feed direction of the web or sheet.
When using flexographic printing, the bars should run parallel to the press direction. If the bars are required to run perpendicular to the press direction check to ensure the symbol is not distorted.
When using either silk screen or rotogravure printing processes, the symbol should be aligned parallel to the cell structure on the screen or gravure plate cylinder to provide the smoothest bar edge possible.
Step 10: Test barcode quality
Once you have the artwork of your product label incorporating the barcode image, you should use a mobile app for verification, before any bulk printing. This will help you avoid printing poor quality barcodes that don't scan easily.
Testing a barcode's scannability also ensures that they scan instantly when scanned using mobile apps in different scanning environments and in poor lighting conditions.
We do this job for you. Apply.