Shrink Sleeve Packaging Case Study: What We Improved Before the Repeat Order

The first order printed well—but one part of the artwork was not checked carefully enough before production.

It was a small prepress confirmation gap rather than a printing quality problem, but it gave us a useful lesson: with shrink sleeve packaging, quality control starts before the film ever reaches the printing press.

When the customer came back for a repeat order, we used the opportunity to review the project more carefully, correct the missed content, make a few small design improvements, and tighten the confirmation process before production.

The First Order: A Good Print, but a Better Process Was Possible

This project involved custom printed shrink sleeves for a bottled product. Like many packaging projects, the early conversations were not only about how the sleeve should look.

We also needed to confirm the sleeve dimensions, printing requirements, artwork details and how the sleeve would work with the actual bottle.

The first production run was completed without a printing quality issue. However, after production, we found that a small part of the artwork content had not been corrected and confirmed as carefully as it should have been before printing.

That distinction matters.

A printing defect and a prepress approval gap are two different problems—and they require different solutions.

An anonymized excerpt from the project communication.

What We Changed Before the Repeat Order

When the customer placed another order, we did not simply send the previous file back into production.

We went back through the project and focused on the areas that deserved closer confirmation.

1. We Corrected the Missed Artwork Content

The content that had been overlooked during the first order was corrected before the repeat production. We also made several small adjustments to improve the existing printed design.

The goal was not to redesign the packaging from scratch. It was to make the second production run more accurate and better prepared than the first.

2. We Checked the Sleeve Dimensions Against the Bottle Again

Size is one of the most important parts of a shrink sleeve project because the printed film ultimately has to work on a three-dimensional container.

During the project, the previous sleeve dimensions were approximately 312 mm × 270 mm, while the bottle height was approximately 254 mm. Rather than assuming the difference was wrong, the production team reviewed how the sleeve covered the bottle and confirmed the application based on the actual container shape.

This is why a shrink sleeve should not be specified from a flat artwork file alone.

3. We Reviewed Shrink Behavior as a Project-Specific Requirement

For this project, the PET shrink film specification used for evaluation had approximately 1% longitudinal shrinkage and 65% transverse shrinkage according to the production-side technical reference.

These figures should not be treated as universal values for every PET shrink sleeve. Actual performance depends on the film specification, container geometry and application conditions.

For that reason, the production-side recommendation was simple: when fit is critical, provide the actual bottle and test the sleeve before mass production.

Artwork and Color Approval Matter Before Printing

Shrink sleeve artwork has another challenge: what looks correct on screen still needs to be translated into a production-ready printed sleeve.

Before production, we reviewed the artwork and color requirements, including the spot/Pantone color used in the design. A digital proof was provided for confirmation before printing moved forward.

The important part is not simply “sending a proof.” It is knowing what should be checked on that proof.

• Text and content
• Artwork version
• Sleeve dimensions
• Color requirements
• Important design positions
• Final container compatibility

Our first order made this lesson especially clear: the main design can look right while a small content detail is still wrong.

That is why prepress approval should be treated as a real production step, not a formality.

Gravure Cylinders Matter When Planning Repeat Orders Too

This project used gravure printing, which required printing cylinders based on the approved artwork and color setup.

That setup matters beyond the first quotation. When the artwork and production specification remain applicable, existing cylinders may be reused for future repeat production rather than remade from the beginning.

For buyers, this is a useful reminder that the real packaging cost is not only the unit price. Setup costs, artwork changes and repeat-order plans can affect the economics of a project over time.

For a broader explanation, see our custom packaging cost guide.

One Small Detail We Added for Shipping

Shrink film can be sensitive to prolonged exposure to heat and light.

For this shipment, we added an additional protective outer layer around the cartons to help reduce exposure during handling and transportation.

It was a small detail, but packaging production does not really end when printing is finished. How the finished packaging is packed, stored and shipped also matters.

What Brands Can Learn From This Project

The biggest lesson from this project was not about one printing technique or one material.

It was about building a better confirmation process.

Before approving custom shrink sleeves for production, it is worth checking:

• The final container: confirm the actual bottle shape and dimensions.
• The sleeve size: review coverage and fit rather than relying only on a flat file.
• The artwork: check every piece of text and content, not only the main visual.
• The colors: confirm spot colors or other important color requirements before printing.
• The proof: use it as an approval checkpoint, not just a preview.
• The physical fit: test with the actual container when the application requires it.
• The repeat-order setup: keep artwork, specifications and applicable printing cylinders organized for future production.

A first production run can reveal where a process needs to improve. The important part is to carry those lessons into the next order.

Looking for the technical side first? Read our guide to specifying shrink sleeve labels or explore our custom shrink sleeve packaging.