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Everything you need to know about envelopes


from lithographic; a printing process using oil-based inks, also known as web offset printing. The inks are opaque so the finished colour is not affected by show-through from the envelope material. This method offers the highest degree of clarity, quality and accuracy and can be used to print flat sheets of paper prior to conversion into an envelope. It can be used, for example, when an image has to bleed off one or more edges and continue accurately onto the reverse of the envelope. It can also be used by specialised jet press printing machines for envelope overprinting in up to four colours after manufacture. This is an ideal option if turnround time is critical, providing that the image itself allows for the process to be used.