Selecting ink for your inkjet technology – impulse jet, valve jet or thermal jet – requires an understanding of your application and some basic qualities of the inks available. We asked our inkjet experts for key information to help shine some light on understanding the ink options available in the market:
A: All inks are made up of essentially the same things; a solvent, colorant, resins and other additives. It’s the resins and additives that give inks certain properties that allow them to adhere to specific substrates better than others. Solvent is the carrier of the ink. Colorant is what gives the ink the color you see. The resin gives the ink the ability to stick to substrates. The additives are anything else added to the ink to give it a desired property (surface tension modifiers, dispersing aids, gloss reducers, etc.)
A: Simply put, the surface tension of the ink and surface energy of the substrate determine an ink’s adherence. An ink droplet is made up of many molecules of ink. These molecules of ink have to be attracted to each other to form this drop of ink. So, the surface tension is how much they are attracted to each other. If they are highly attracted to each other (water) then the molecules are close together and hold on tightly to each other. When the molecules are not very attracted to each other then they barely hold onto each other and spread out more. It has to do with the charges of the molecule, or lack thereof.
Water is polar, which means it has a negatively charged and a positively charged end. These negative and positive charges attract to each other like magnets do. For example, when the water is placed on a glass, it just beads up and runs off because the glass has no charge (non-polar). The water is not attracted to the glass. However, if we add soap to the water we alter the surface tension and the dynamic changes. Soap molecules have a charged side (polar) and a non-charged side (non-polar). When the soap dissolves in the water it allows the non-polar side to be attracted to other non-polar substances, like glass.
So, to make an ink better adhere to a substrate, additives are used to change the surface tension of the ink to more closely match the surface energy of the substrate.
A: VOC stands for volatile organic compound. With some exceptions, the solvents used in products such as coatings, inks and adhesives are generally classified as VOCs. Unless they are controlled, these solvents are emitted into the air after they perform their function. Thus, solvent emissions from products and industrial operations are one of several significant sources of VOC emissions. Emissions of VOCs, in and of themselves, do not necessarily give rise to health or environmental concerns. In many areas, however, they react with oxides of nitrogen (NOx) in the presence of heat and sunlight to form ground-level ozone – the primary component of “smog.” For that reason, they are regulated as “ozone precursors” under the federal Clean Air Act and similar state laws.
A: Dyes and pigments are both colorants. Dyes are soluble liquids and dissolve into the ink base. They do fade over time. Pigments do not dissolve as they are solids and do not fade. Since they are solid they may settle, or sink, to the bottom of a container if the ink has a low viscosity, or is thin and watery in texture. The weight of the pigments causes the inherent problems with pigmented ink. First, they can actually clog printheads if they’re too large. Secondly, if they are allowed to settle the ink will not have the same color.
It’s the same concept as pouring Italian dressing on your salad without shaking it. The dressing will have a different taste because the ingredients are not mixed.
A: One component of ink that helps it adhere to substrates is resin. The resins allow the ink to spread creating more surface area helping promote adhesion. Resins can be categorized as either brittle, semi-brittle or flexible. If an ink containing a brittle resin, like acrylic, is used to print on film it can ‘flake’ off the film because the resin is stiff and is not able to adhere and conform to the shape of the plastic. If an ink with a flexible resin was used, the resin would be pliable and therefore be able to bend or flex with the film.
Diagraph’s top-performing ink, ScanTrue II Plus, and all valve jet inks are produced in our Marion, Illinois manufacturing facility. All of our inks have been designed to perform at the highest level with Diagraph manufactured inkjet equipment. If you have any questions, or wish to better understand what kind of ink would be optimal for your inkjet application, reach out to our experts!
Downtime in your production simply isn’t an option. But at any moment, an unpredictable event can arise like low ink levels, maintenance and clogging, putting your operations on hold anywhere from an hour to an entire shift. So how do you prepare for the unexpected? One option that we see put into practice by many customers is the investment in a spare inkjet printer – a reliable, on-hand system that can quickly be fired up on a production line when your regular systems suddenly quit.
So what exactly should you be looking for in a reliable back-up inkjet printer?
Extended shutdown features – There is no planning when you might need to pull in a spare printer, meaning it could be sitting idle for an undefined amount of time. Many small character printers take time to boot up and flush printheads that have not been in use for some time. These printers often require full system flushes or draining when being prepared for extended shutdown periods. When purchasing a small character printer to use a spare, choose one that doesn’t have extensive shut down procedures and is designed to fire right up and start printing after sitting idle for as long as 3 months at a time.
Long shelf-life – Thermal inkjet printers that utilize snap-in and -out replacement ink cartridges make great spare candidates. Ink cartridges can be kept in-stock and on-shelf so your printer is guaranteed to have a supply of ink when it is pulled into operation at a moment’s notice.
Additionally, for high-resolution inkjet printers that take fluids from bottles, industry-leading inks are formulated to last as long as 18 months on the shelf and still consistently deliver high contrast print messages. Similarly for your case coding, look for printheads that remain start-up ready for up to 12 months. To ensure peak performance of ink fluids and printheads, always store according to recommended temperature and humidity conditions.
Protected internal electronics – Look for systems that have a protective covering to maintain and preserve the internal electronics. Not only is thermal jet printer technology a low investment option that produces high resolution text, graphics and barcodes up to 1” high, but the easy-to-change cartridges are simple to store on-shelf in case of emergencies.
Ask yourself whether it is more costly to invest in spare printers for your food production line or to risk unplanned downtime. The investment to protect your productivity is more than likely to pay off if you’re making an informed decision about the inkjet systems you’re keeping as back-ups. Our product specialists can help you determine what the best spare system type is for your application needs. Call today or send us an email for our recommendation.
3/24/05 INTRODUCING THE NEW TRIDENT-POWERED IJ/384 PRINTHEAD FOR THE IJ/3000™ IMPULSE JET SYSTEM
Diagraph, An ITW Company, introduces the new IJ/384 printhead for the IJ/3000™ Impulse Jet Large Character Ink Jet System. This IJ/384 printhead utilizes the new third generation print engine from Trident®. This printhead features a 2” imaging height at 192 vertical dpi for smooth true-type fonts and logos, as well as UPC/EAN and SCC-14 bar codes at 200 horizontal dpi. It is also the first of a new family of printheads that use the pigmented Scan True II ink. This pigmented ink minimizes the ink bleed for bar codes and small text, and offers better light fastness than dye-based inks.
The IJ/3000 Impulse Jet offers unsurpassed “smart” features: the ability to print high resolution bar codes, touch screen controls, worldwide networking connectivity, around-the-clock monitoring and diagnostic functions, and convenience features such as automatic cleaning.
The IJ/384 printhead offers the automatic cleaning feature, which allows the operator to program the IJ/3000 controller to self-clean at selected times over a 24-hour period. The pump and vacuum device in the CIDS/3000 ink delivery system automatically remove accumulated contaminants from the faceplate of the printhead and transport them to a reservoir, for future disposal. This will keep the printhead clean and printing clear marks as part of the preventive maintenance process.
IJ/384 Printhead Specifications:
Image Height: 2” (51mm) Number of Orifices: 384 (3 per channel)
Vertical Resolution: 192 dpi Addressable Channels: 128
Interface boards per printhead: 2 Ink Type: Scan True II Black
Maximum line speed: 200fpm Printhead Orientation: Horizontal
With the addition of the IJ/384 (2”) printhead, customers have four IJ/3000 Impulse Jet printhead choices to satisfy virtually any marking or coding application: IJ/96 (3/4”), IJ/192 (1”), IJ/384 (2”) and IJ/768 (4”).
The IJ/3000 allows users the flexibility of multi-technology performance. It is engineered to drive either high-resolution Impulse Jet printheads, such as the IJ/384, Diagraph’s patented Integrated Valve printheads, or the PA/5000LT Label Printer/Applicator.
The Impulse Jet High Resolution bar code print solution comes with a touch screen that allows operators to control the system with the touch of a finger and enjoy previously unimagined levels of convenience and productivity. The graphical user interface visually displays menus and commands so operators can enter messages and codes in minutes. And batch codes can be changed during a run, without interrupting production.
The IJ/3000 Impulse Jet has a built-in high-speed Ethernet connection that permits networking with another printer on the other side of the factory, or on the other side of the world. For multi-location manufacturing customers with constantly changing batch codes, this smart feature is invaluable for making changes and checking status. The system is designed to work with Web browsers (including Netscape and Internet Explorer), existing local area networks (device net, arc net, etc.), or wireless (radio frequency) using off-the-shelf converters.
Another smart feature is 24/7 monitoring and diagnostics. Operating on PCs, PLCs, and LANs, it can be used to obtain up-to-the-minute system status. The IJ/3000 Impulse Jet can even be programmed to monitor ink levels and provide an alert when the supply needs to be replenished.
Like all Diagraph ink jet printing systems, the IJ/3000 Impulse Jet is built to last, with minimal maintenance, even in hostile industrial environments. It provides reliable performance in all kinds of conditions—hot, cold, wet and dry.
For more information, please contact Diagraph using the method most convenient for you:
Diagraph, an innovator in product identification technology for over 100 years, manufactures and distributes marking, coding and labeling systems and supplies. Diagraph offers a complete line of RFID; barcode label printers; small character ink jet, large character ink jet and high-resolution ink jet systems; label printer-applicators and label applicators; thermal transfer label printers; stock and custom labels; labeling consumables; and traditional marking and stenciling equipment and supplies. Diagraph is a global supplier, with sales and service offices located across the United States and throughout the world.
DIAGRAPH is a registered trademark of Illinois Tool Works Inc. TRIDENT is a registered trademark of Illinois Tool Works Inc.
Bar Code Printer Related Quick Links: Barcode Printer Case Studies Zebra Barcode Label Printers Datamax Barcode Label Printers Sato Barcode Label Printers
No one wants to risk their health or the health of their family by bringing home dairy products with indistinguishable expiration dates. Regardless if your dairy plant produces fluid milk, cheese, yogurt or ice cream, if your product does not have a legible expiration date on it, chances are your product will remain on grocer’s shelves but too many instances of poor quality codes will put the dairy processors relationship with the grocer at risk.
Non-contact coders such as the Linx 8900 Series continuous inkjet (CIJ) are an ideal choice for dairy packaging as it allows high speed printing of variable information on a variety of substrates such as PET bottles, foil sealed cups and resealable pouches. The printer is built for harsh industrial environments with refrigeration and washdown requirements. It has a completely sealed printhead and solid stainless steel construction.
Linx 8900 Series printers are right at home in dairies, but how do you ensure your code adhesion and readability? Linx offers a variety of functional coding inks. Here are our top 5 recommended inks designed to meet the performance needs of dairy products.
Not sure which ink type is right for your coding application? Contact Diagraph today to learn more about our Linx ink selection and to request print samples for your diary product coding application. Call 1.800.722.1125 or contact us through the website.
When looking at purchasing small character continuous ink jet coding equipment, it’s important to take a step back and look at the total cost of ownership. As consumers, we have fallen into the habit of looking at the sticker price, no matter if it’s a car, dishwasher, or ink jet printer and immediately formulating an opinion based on the price tag. “It’s too expensive” or “it costs more than other ones just like it” might be typical reactions when finding something that looks like it’s priced higher than similar looking, competitive models. And it’s easy to understand why we do that…and we ALL do that. Typically, it’s a large purchase. Or in the case of buying something for business, it’s a capital expenditure, and the purchase needs to be justified. However, if you want to find the true cost of what you’ll spend, you have to look at more than just the initial purchase price, or “perceived price” of any item…you’ll need to look at the total cost of ownership. Doing a proper cost analysis may take a little time and effort, but it’s time well spent. It can save you in both dollars and “sense” later on.
With the purchase of a small character continuous ink jet (CIJ) printer, there are three main areas when considering the total cost:
1. Purchase Price 2. Maintenance & Production Downtime Costs 3. Consumables & Parts Costs
Again, the first and most obvious indicator of pricing comes from the purchase price of the item. And there’s a pretty healthy range of pricing and options when it comes to CIJ printers. Make sure you are comparing equivalent features and options when looking at printers head to head. And if CIJ printers are designed to print, whether it be alphanumerics; date codes; batch codes; lot codes; bar codes; graphics or logos, what makes one different from the other? They all still print the code, right?
The old adage, “you usually get what you pay for” greatly comes into play with CIJ printers, just like it does with automobiles. The similarities are uncanny. Every automobile, when it came off the showroom floor, was designed with at least one commonality in mind: to get you from point A to point B. But think about the vehicles you’ve owned. Hasn’t there been one that drove better, last longer, provided more reliability than others that you’ve had? It’s the same with CIJ printers. They’re all designed to come off the showroom floor, or in this case out of the box, and “drive” or print. However, just like your favorite vehicle, there is a difference from one CIJ to the next, on how it drives, how long it lasts, how reliable it is over time. And in the end, just like an automobile, you usually get what you pay for. In a sense, you can “pay now or pay later”. (“Pay now” meaning the initial cost may seem more expensive, but over time will be minimized by less maintenance, less downtime, less headaches. Or “pay later” meaning a lower cost initially, but over time more expense through frequent maintenance, more downtime, more headaches.
After purchase price, we need to look at an area that may be thought about the least, but arguably should be considered the most. It’s the categories that we don’t automatically think about when we think about “price”, but these are a very important part of the equation when adding up to the total cost of ownership.
Some important questions to ask while comparing CIJ printers:
Do you see the reoccurring theme? Let’s face it, time is money. And the time that your production line is not running is costing your company money. Ask any Maintenance Manager who oversees a CIJ printer on the production line about their joys or pains. Depending on the CIJ printer, you’ll either hear “I press the go button in the morning for start-up, I press the red button in the afternoon for go home, and the time in-between I have no problems.” Or you’ll hear responses like, “my CIJ printer takes forever to start-up, I have to clean the printhead daily, I have to manually make adjustments to the printhead, it’s a mess.” So one of the factors that needs to be added in to the total cost of ownership is time. How long does the printer take to get up and running? What’s involved? How much time is spent daily on maintaining the printer, or more specifically, the printhead? Are manual adjustments to the printhead needed in order to maintain print quality throughout the day?
Is the printhead your friend or foe? For example, if daily printer startups takes 10 minutes every day x 7 days week x 52 weeks/year, that’s an average of over 60 hours spent just on getting the CIJ printer to print! How much is your time worth per hour? Do the math. How important is it to have a CIJ printer that does not require daily printhead cleaning nor any manual adjustments made to the printhead? How much time could that save? How much money could that save! That too is part of the cost of ownership that needs to be factored in.
While not all CIJ printers require factory air, many today do. So another cost as part of your analysis is factory air. How often does the air filter need to be replaced? What is the cost of the air itself? $400/year? And what about portability or rather mobility. Some manufacturers like to have one printer to move to multiple production lines at different times of the day. If so, how easy is it to move the CIJ printer if there is an airline connected to it? Will I need an airline added in another location? If you’re comparing a CIJ printer that does use factory air vs. one that does not, make sure to take those items into consideration as well. They too are part of your cost.
Also, and without getting into the details, it is important to know how frequently your CIJ printer will require scheduled maintenance. You’ll want to understand from your CIJ vendor what is recommended by the manufacturer and factor that into your cost.
Make sure that you are comparing apples to apples when it comes to consumables. Ink consumption will be based on the volume used to mark your product. Solvent consumption has many variables based on ambient temperature and fluids management (i.e. are you wasting solvent on printhead cleaning, are you needing to refresh systems with new solvent when you haven’t finished your old solvent yet). Figuring how much ink and solvent your CIJ printer requires to put your mark on your product is part of the cost analysis. Also, in terms of purchasing fluids, make sure that you are comparing the volume of fluids per case. Some vendors will package and sell 6 bottles to a case; others will be 10 bottles to a case, so make certain you are looking at the total volume when looking at cost per case on consumables.
Replacement parts should be purchased from a manufacturer-approved source. Discount replacement parts (i.e. from a third party) may prove to be more costly due to increased maintenance & service costs.
So that’s basically it. The key to determining the total cost of ownership is to look at the total picture. And if you’re working with a reputable vendor of CIJ printers, they’ll alert you to this and even aid in figuring your total cost. The main thing to remember is that a CIJ printer with a higher purchase price does not make it a more expensive printer. In fact, it will probably save you money because of its quality, reliability, and longevity.
At the end of the day, what you’re really buying is value and peace of mind. If you have to continually stop your production line to babysit the CIJ printer because it’s time to add fluids, tweak the printhead, etc. on a printer that you saved a few thousand dollars on, you’re not saving money. With CIJ printers, you really do get what you pay for. Remember, it’s about dollars and “sense”.
And just like automobiles, you should be able to do a “test drive” of the CIJ printers before you purchase. A quality vendor will access your application needs, make a recommendation based on best-fit technology and provide you with a free, no-obligation demonstration of the CIJ printer on your production line. If they can’t or won’t do that, look elsewhere.
Download the full whitepaper, “Pallet Labeling: The Final Step In Your Production Tracking Process”
The final step in your production process can often easily be overlooked. After rigorously completing all the upstream processing, packaging and coding processes, the final palletized product seems to be a small step before crossing the finish line. However, labeling at the pallet level is a crucial process for identifying palletized products being shipped to retailers.
Imagine this: You’re completing a custom job for products specific to one regional retail chain. To differentiate the pallets for the custom job from your standard products, you plan on printing the identifying batch information on the license plate label and applying it to the outside of the shrink-wrapped pallet. When the time comes, your shipment is sent to the retailer only to discover that the products sent are not the custom printed containers they ordered. Now not only is your relationship with this retailer tarnished, but you are on the hook for reprinting all of their products at your own cost.
This scenario might sound familiar if you’re still in the business of manually applying labels. Some level of human error is always a risk and it can be a costly one. Ensuring a consistent, accurate label on every pallet that leaves your facility doesn’t have to be a trying task. It is possible to guarantee proper label placement while also avoiding common safety issues often occurring from the entanglement of the labeler in the pallet shrink wrap.
Our pallet labeling experts at Diagraph have complied a helpful guide for assessing automated pallet labelers for your production line. This guide steps through the main questions you should ask when evaluating your pallet labeling automation process and reviews the top areas of consideration you should work through before you make any kind of investment.
Download the full whitepaper, “Pallet Labeling: The Final Step In Your Production Tracking Process”, here to learn more.
Pallet Labeling: The Final Step In Your Production Tracking Process
Color Contrasting Inkjet Coder Runs Cleaner for Longer
Linx 8900 Plus continuous inkjet lineup overcomes longstanding soft pigmented inkjet challenges
ST. LOUIS, (Nov. 9, 2017) – Diagraph is pleased to announce the launch of the Linx 8900 Plus Series – an advanced range of color contrasting inkjet technology that provides the highest levels of printer reliability and ease of use. Enhancements in printhead design and pigment particle dispersion in the Linx 8900 Series prevent common clogging issues associated with inkjet systems when using color soft pigment based inks.
Providing up to 6 weeks between printhead cleanings and up to 6,000 hours or 12 months between preventive maintenance intervals, the Linx 8900 Plus Series printers are among the most robust soft pigmented inkjet printers in the industry. The printers feature fully sealed, stainless steel printheads with integrated auto-flush technology that keep the printheads running cleaner for longer and print quality consistently high. Preventive maintenance work on the printer can be accomplished using unskilled labor, involving the change of self-service module and filter guided by instructions displayed directly on the printer screen.
The Linx 8900 Plus Series keeps pigment particles dispersed in the ink system using several printer functions that provide constant, gentle agitation. The printers feature an enhanced mix cycle that is triggered at jet start up and can self-adjust for idle periods and extended shutdowns. This approach to particle dispersion eliminates the use of mechanical stirrers and the need to keep the printer left powered on – minimizing the number of wearable parts and the overall cost of operating the printer.
Achieving print speeds of more than 1,600 feet per minute for a single line, seven dot high print message, the Linx 8900 Plus Series printers offer some of the fastest speeds in the industry for the most common print message requirements. In addition to industry-leading print speeds, the Plus Series can accommodate a wide range of print formats including data matrix and QR codes printed up to 20mm high, with a considerable throw distance of 20mm and up to 45mm when requiring a “tall” print message style. Ink colors available with the printer include yellow, blue and black.
Contact a Diagraph Product Identification Expert by calling 1.800.722.1125 to learn more about how the Linx 8900 Plus Series inkjet printers can take your color contrast coding to the next level.