Originally Posted by: amandanielsen
I am having a similar issue with using the brown kraft labels with sprays (on 2oz PET cosmo rounds) and liquid soaps (on 8oz PET squat boston rounds). We wipe with alcohol, apply with clean hands, make sure the bottles are clean / dry, limit tension... but still the edges pop up. We have chosen sizes so that there is no overlap (we LOVE the size options on this site!). But the glue just isn't holding up with the edges. I hate to have to go back the previous kraft paper we were using. It stuck better, but we had to CUT our labels to size which really ate up time.
We actually made an adjustment to our brown kraft material a couple of years back to increase the strength of the adhesive. I'm sorry to hear you're still having some trouble with adhesion to a couple of your bottle types.
If you're working with a clean, dry bottle the biggest factor relating to proper adhesion on a curved surface is tension. You mentioned limiting surface tension in your original post, so you may already be taking these steps, but when labeling a curved surface you should apply the very center of the label first and then press outwards both ways to distribute pressure evenly. This will ensure that the label is being applied with as little surface tension as possible and typically goes a long way toward reducing edge lift on labels that wrap around a curved surface.
If you're already applying your labels like this and still experiencing edge lift you may need to move to a different size label if you're bottle will allow for it. A larger label will provide more surface area for the adhesive and typically result in better adhesion. You mentioned that you were avoiding overlap on your wrap around labels, but moving to a full wrap my actually improve the adhesion as well. If you're going to overlap the edge of the labels, the key is to allow for enough length so that the overlap is at least a quarter of an inch. Anything shorter than that may result in some lifting, but if there's enough surface area on the overlap you should excellent adhesion.
We're happy to send samples if you'd like to try some different sizes on your bottles. You can request free sample sheets by visiting the link below:https://www.onlinelabels.com/General/SamplesSelectItems.aspx
I hope this helps. If you need any additional information please just let us know.