Clean the surface to be labeled first.
Cleanliness is everything! Only work in a clean and dust-free environment. Ensure that the surface of the container, whether it be plastic or glass, is free of grit and dust, and doesn't have a thin layer of an oily substance on the surface. A mild solution of dishwashing liquid mixed with water works best. Use a lint-free towel and clean each surface thoroughly. If the surface has a sticky residue, first clean with methylated spirits, followed by the dishwasher solution - never the other way round!
Small label application.
When adhering the label or sticker to your bottle, it's advisable to start from the centre of of the label, rubbing gently outwards to each side; this will eliminate creasing in the label.
Large label application
For the application of larger labels, it's advisable to mix a solution of water with a few drops of dishwashing liquid into a spray bottle. Spray the entire area with this solution, place the label in position starting from the centre moving out to the edges, then gently wipe using a soft cloth from the centre out to the edges, eliminating creasing. Towel dry and leave to fully dry for about an hour before handling.