Invisible Sentinel: Autoclave Indicator Labels

One main challenge that Invisible Sentinel faced was finding a label manufacturer who could produce custom sized labels in small quantities. Also, their existing method for showing proof of sterilization included applying and removing autoclave indicating tape to the bottles in addition to a separate product label. Dominic preferred to switch to a single label that would serve both functions simultaneously. Each label was to be assigned its own color to specify 12 different types of media. After the autoclave process was complete, the label must be removed but one challenge still remained; how would they be able to distinguish which media was inside each bottle? With Dominic’s idea, CleanMark created a separate outer-ring label, each with a matching color that correlated to the previous autoclave indicating label (see photo). Once the initial label was removed, their manufacturing team could now easily determine the corresponding media. 

Dominic’s ideas helped CleanMark’s Engineers to select the proper materials needed for each unique label. The outer ring label needed and an aggressive adhesive that would last while the autoclave indicating label needed a material+adhesive combination that could be easily removed within 3-5 days. What’s more; part of Invisible Sentinel’s manufacturing process involved placing these bottles (and labels) through a vigorous laboratory wash machine cycle. This particular wash cycle would expose the labels to harsh chemicals such as IPA & Lancer-acid. It was critical that CleanMark could produce a label that would survive all aspects of this process while maintaining its integrity, legibility and color. After a round of free material sampling, Dominic was able to evaluate the performance of CleanMark’s recommended labels on the bottles, through the autoclave sterilization process, and through the lab wash cycle. 

With an understanding of Invisible Sentinel’s goals, CleanMark was able to develop a custom labeling system that served several purposes while saving them money. This also simplified their existing process by removing the need for separately applying and removing autoclave indicating tape. Now Invisible Sentinel has a go-to resource that they trust for their label needs.

CleanMark offers autoclave sterile indicator labels that use a color changing ink to show when the label has went through the autoclave process. Learn more about the autoclave labels we offer and how we might be able to help.