Rainbow envelopes are smooth coloured decorative envelopes made from mass-coloured offset paper in 80g. Rainbow is a series of envelopes available in nine popular colours such as cream, salmon, green, dark yellow, pink, red, blue, grey and black. We can offer Rainbow envelopes to our clients in four typical formats like C6, K4 (14x14cm), B6 and DL. All the envelopes have specific triangle shape of closing flap and are wet sealed – NK type of gluing. Despite relatively low grammage Rainbow envelopes are very elegant and often applied to invitations, occasional cards as well as important correspondence. Rainbow envelopes are the newest envelopes in our offer however thanks to low price and high quality become more and more popular among our customers.