Hot or Cold? The Role of Temperature in Label Durability

If your products will get hot or cold, it’s important to make sure your choice of label is just right. Whether your containers encounter hot or cold temperatures during application or sometime after, temperature can play a prominent role in identifying the right label for your situation. Here are some specific problems where hot and cold temperatures can wreak havoc with the durability of your product labels.

Heat or Cold Can Make Some Adhesives Fail

Behind every good label is some very important ‘glue’ – literally. Without the adhesive, you’d be stuck with some really nice leaflets to hand out with some blank containers. Unfortunately, hot or cold temperatures can be a dividing force that tears your containers and labels apart.

Temperatures issues can happen right away during the application process. Label adhesives have varying minimum application temperatures. If you apply a label with a certain adhesive outside of its recommended temperature range, it may not have the tack or adhesion necessary to stay on a container. For example, an acrylic adhesive may be a good choice for products that are hot-filled or exposed to higher temperatures, but it may pose problems in colder applicating conditions.

Different temperatures can also cause adhesives to fail at some point after initial application. For example, extreme cold or heat can cause removable label adhesives to break down. After a stay in the freezer or some time in direct sunlight on a summer day, your labels may start to peel off or fall off their containers altogether. In these instances, it would be better to opt for a permanent label designed to handle difficult, environmental factors.

A cold, wet beer can with a pressure sensitive label going through a filling machine.

Some Face Stocks Can’t Face Certain Temperatures

In addition to your adhesive, there’s another critical layer of your label that can be negatively affected by hot or cold temperatures: your face stock. Certain label materials can run into performance issues when forced into environments that are too hot or cold. Fortunately, a little planning can make sure your choice of substrate is perfect for your exact needs.

The first step is to think about exactly where your products and their labels will be in the future? Are they a bottle label that will end up in a refrigerator or a cooler? Will these products end up sitting out in the hot sun or a steamy bathroom? Will they potentially sit in a storage space for a while? Each environment can pose it’s own temperature issues, along with other environmental factors like moisture, humidity, and sunlight.

When it comes to face stocks, film substrates offer better resistance to heat and other damaging elements. Utilizing a material like a BOPP or PET substrate can help give you more peace of mind if your product will encounter any environmental hazards in its future. While paper stocks don’t have quite the durability of their film compatriots, UV varnishes or thicker paper materials can help mitigate the impacts of various temperatures and other issues.

Heat and Cold Can Make Shrink Sleeves Warp

Pressure-sensitive labels aren’t the only labeling option affected by varying temperatures. Shrink sleeve labels also require some care and planning to protect your investment.

While shrink sleeves are a great option for anyone looking for a label that provides 360-degree coverage, one downside is that these labels are very sensitive to environmental factors before application. If shrink sleeves get too hot or cold before they’re applied, they can warp. Not only can this destroy part of your design, it may ruin some shrink sleeves altogether.

To solve this, you’ll want to make sure that your shipping and storage situation can accommodate your shrink sleeves. Depending on the time of year and your location, that can mean temperature-controlled shipping or utilizing temperature gauge labels to check a shipment before you apply damaged sleeves. As for storage, you’ll want a climate-controlled space – or at least one that won’t become freezing cold or sweltering hot when the weather shifts.

A six-pack of beer with durable product labels sitting on a storage space floor.

Invest in the Durable Labels for Your Environments

There’s a lot more to a label than just the design. From the liner to the top coat, every part plays a role in your label. When you work with Blue Label, we help you invest in durable labels designed for your specific performance and budget needs – all while ensuring that your design dazzles your customers.

Want to work with a company that can provide you with quality, cost-effective labels that can stand the heat (or cold)? Contact us today about your next label printing project.

Common Labeling Mistakes to Avoid: Application Issues

Before your labels can wow anyone, you need to apply them to your products. However, improper application can make your labels stick out for all the wrong reasons.

Application issues come in many forms and lead to a range of problems. Misapplication could lead to tearing, wrinkling, flagging, or peeling. Other factors can wreak havoc with the actual application process itself. No matter the problem, you can take measures to prevent each problem ahead of time. Here are some notable reasons why you’d encounter label application issues.

Your Label isn’t Right for Your Container Surface

What you apply your labels to can play as much of a role in label issues than the application process itself. Each surface has its own challenges, which can call for a different adhesive or label material. For example, a glass wine bottle has a different surface energy and adhesive needs than a polyethylene pouch for candy. This means that you need to identify potential surface issues to ensure that your labels stay on your products during – and long after – the application process.

Custom product labels printed out for rolls.

The Applicating Environment Poses Problems

Even if you have the right label material and adhesive for your container, they may not be a good fit for your applicating environment. There are a variety of factors that impact label application. Certain adhesives won’t work nearly as well at different temperatures, which can be a major issue if application is performed in a hot or cold environment. As a result, you’ll want to take these conditions into consideration when selecting the right label adhesive.

There’s also potential for contaminants like dirt, dust, and moisture to prevent proper adhesion. The product itself can even pose a problem for the application environment. Spilled oil or soap won’t make it any easier for an adhesive to take hold. No matter the potential problem, it’s important to try and keep your containers and environment as clean as possible for application.

The Unwind Direction is Wrong

Even if you have the right label adhesive and your applicating environment is clean, you can still have major issues if your rolls aren’t oriented correctly. Since your labels are printed on rolls, it’s crucial that you consider both how those labels are printed on the substrate and how they’ll be applied to your container. If you don’t, you’ll likely end up with an incorrect unwind direction that results in improper label placement.

Simply put, the unwind direction is the orientation of your labels as they come off a roll. Depending on your container or application equipment, you will need a specific unwind direction. For example, one machine may dispense labels on the left side first or require your design to be turned 90 degrees for proper placement. It’s key that you take the application process into account and visualize how your labels are applied to your product. That way you can communicate the correct unwind direction to your printer so that you avoid issues before they happen.

Spirit bottle labels printed with the right unwind direction.

Your Label Rolls Aren’t Right for Your Equipment

Unsurprisingly, your applicating equipment could be the source of application issues. Certain machines only handle certain roll sizes. That means equipment designed to use 8-inch rolls won’t accommodate larger sizes. As a result, improper roll sizes can cause your application process to come to a complete stop.

Incorrect roll sizes are fixable, but it still requires your printer to resize and rewind them. In turn that costs you more time and money for an entirely preventable problem. Whether you use your own equipment or work with a co-packer, make sure you know what size rolls your equipment can handle. This size issue is typically referred to as “maximum outer diameter” or “max OD,” That way you can communicate these sizes to your printer and be proactive in preventing issues.

Work with the Right Label Printing Company

No matter the application issue you want to avoid, a good printer can help you find potential solutions to your label problems. That’s why Blue Label develops a collaborative relationship to work with our customers so that we understand their needs and identify ways to avoid issues ahead of time.

Ready to talk about your next custom product label project? Contact Blue Label today to get in touch with one of our experts.

Selecting a Substrate

Selecting a substrate (or face stock) for your product label may not be as simple as you think. There are thousands of combinations of face stocks and adhesives out there and choosing the right one could be critical to your label’s performance. Here are a few things you need to consider before ordering your labels: application, performance, aesthetic and cost. Listed below are some questions that should help you decide what substrate you need to get the most out of your label. (more…)

Label Consistency

Designing a good label is hard. It takes a good concept, an understanding of the technical applications, a good designer, and a printer that can get it all right. But here’s the scary thing, even if you do everything right to create a great label, you could still end up with boxes full of useless packaging. Why? Consistency. Just because a label was right one time doesn’t mean it will be the next. Really, you might be thinking, in the age of the iPhone and Netflix, printers still haven’t figured out how to make labels look the same every time? Well, the answer to that is that some have and some haven’t, and you need to be able to tell the difference. The difference is the process they are using to create the label. Flexographic is an analog process that requires a lot of judgment and ‘eyeballing’ whereas digital printing is, well, digital. Here are the main areas digital printing can help maintain label consistency:

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