When you want to brand your product from top to bottom, shrink sleeve labels give you a way to create 360-degree coverage for your products. Shrink sleeves have grown in popularity over the past few decades after making an initial splash when Tylenol used them to combine attractive labeling with tamper-evident sealing.Shrink sleeves are now growing in popularity for cans, bottles, and other containers, but there are still many people in need of quality product packaging who don't know how these labels work. Here's a quick breakdown of what a shrink sleeve label is and what makes it different from other labeling solutions.
What is a Shrink Sleeve?
Shrink sleeve labels are full-color, 360-degree printed labels that utilize heat in the application process to conform the label to the shape of the container. The labels are typically printed on either plastic or polyester film material and are commonly used on aluminum cans and glass or plastic bottles.
Benefits of Shrink Sleeves
One of the greatest advantages of using shrink sleeves is that it allows you a 150 percent increase in label real estate compared to pressure sensitive labels. This additional space can be used to help tell your brand story, add more imagery, or make room for all of the regulatory information that needs to go on your label.
Beyond branding, shrink sleeves can function as more than just a label. Like in the Tylenol example, shrink sleeves can double as tamper-evident sealing to give your products the extra security they need with a perforated shrink cap. Shrink sleeves can also be used to package multiple items together for the purpose of offering it as one product. Because shrink sleeves are form-fitting, you can package different sized and shaped containers, like free samples or two-for-one deals, together easily.
Another benefit of using shrink sleeves is that they are very made of very durable materials. This makes them an excellent labeling option for products like hair care products and beer that are ten in humid or moisture-heavy environments like showers and refrigerators.
How Do Shrink Sleeves Work?
Like regular labels, shrink sleeves give you a means to add branding and product information on a container. The process of applying a shrink sleeve involves shrinking a film sleeve with steam or heat so that it conforms to the shape of your container instead of laying on the surface with an adhesive. However, before you can apply the shrink sleeve there are a few different steps that have to happen.
Creating the sleeve
As the name suggests, one of the key differences between shrink sleeves and pressure sensitive labels (i.e. sticker-like labels) is that they come in "sleeves." Like pressure-sensitive labels, shrink sleeves can be printed on flexographic or digital printing presses. Unlike traditional labels, the ink is printed on the inside of the sleeve instead of on top of the label material. This allows the film to naturally protect the ink as it adheres to the container.
Once the sheets are printed, they need to be converted into sleeves. Some print shops, like Blue Label, do this step in-house to limit the number of times people handle these delicate products before they are applied. Other printers may need to send the sheets to shrink sleeve converters, which results in more opportunities for someone to mishandle the shrink sleeves, obstruct the ink, or cause some form of damage to these labels.
Regardless of who completes the process, the converter will seam the ends of the sheets together to leave openings at the top and bottom of the newly created sleeve. This is done by taking the ends of the film and sealing them together with a specific type of glue to create a loose cylinder. These seams are then inspected to ensure that the sleeves won't break open as they're applied. Once done, the film is inspected and shipped as either rolls or individual sheets depending on your application needs.
Process Flow: Film Blowing > Printing > Splitting > Placing > Inspecting > Cutting into slices
Function | Widely used in the packaging of various beverages, mineral water, dairy products, beer, fruit juices, etc. with environmental protection requirements. |
Thickness | 0.035-0.08mm |
Printing method | Surface with inside |
shrinkage efficiency | Horizontal 65-75% Vertical 3-5% |