Wallpaper is a material used in interior decoration to decorate the interior walls of domestic and public buildings. It is usually sold in rolls and is applied onto a wall using wallpaper paste. Wallpapers can come plain as "lining paper" (so that it can be painted or used to help cover uneven surfaces and minor wall defects thus giving a better surface), textured (such as Anaglypta), with a regular repeating pattern design, or, much less commonly today, with a single non-repeating large design carried over a set of sheets. The smallest rectangle that can be tiled to form the whole pattern is known as the pattern repeat.
England and France were leaders in European wallpaper manufacturing. Among the earliest known samples is one found on a wall from England and is printed on the back of a London proclamation of 1509. It became very popular in England following Henry VIII's excommunication from the Catholic Church - English aristocrats had always imported tapestries from Flanders and Arras, but Henry VIII's split with the Catholic Church had resulted in a fall in trade with Europe. Without any tapestry manufacturers in England, English gentry and aristocracy alike turned to wallpaper.
In 1748 the British Ambassador to Paris decorated his salon with blue flock wallpaper, which then became very fashionable there. In the 1760s the French manufacturer Jean-Baptiste Reveillon hired designers working in silk and tapestry to produce some of the most subtle and luxurious wallpaper ever made. His sky blue wallpaper with fleurs-de-lys was used in 1783 on the first balloons by the Montgolfier brothers. The landscape painter Jean-Baptiste Pillement discovered in 1763 a method to use fast colours.
High-quality wallpaper made in China became available from the later part of the 17th century; this was entirely handpainted and very expensive. It can still be seen in rooms in palaces and grand houses including Nymphenburg Palace, Lazienki Palace, Chatsworth House, Temple Newsam, Broughton Castle, Lissan House, and Erddig. It was made up to 1.2 metres wide. English, French and German manufacturers imitated it, usually beginning with a printed outline which was coloured in by hand, a technique sometimes also used in later Chinese papers.
By the early twentieth century, wallpaper had established itself as one of the most popular household items across the Western world. Manufacturers in the USA included Sears; designers included Andy Warhol. Wallpaper has gone in and out of fashion since about 1930, but the overall trend has been for wallpaper-type patterned wallcoverings to lose ground to plain painted walls.
Non-woven wallpaper: Non-woven wallpaper is made from a mixture of chemical pulp and textile fibres, and is used on its own or as a backing for other types of wallpaper. When hanging this wallpaper, the paste is applied directly to the wall, after which the wallpaper will hang on without booking time.
In 2012, scientists at the Institute of Solid Construction and Construction Material Technology at the Karlsruhe Institute of Technology announced that they had developed a wallpaper that can help keep a masonry wall from failing in an earthquake. The wallpaper uses glass fibre reinforcement in several directions and a special adhesive which forms a strong bond with the masonry when dry.
Like paint, wallpaper requires proper surface preparation before application. Additionally wallpaper is not suitable for all areas. For example, bathroom wallpaper may deteriorate rapidly due to excessive steam (if is not sealed with a specific varnish). Proper preparation includes the repair of any defects in the drywall or plaster and the removal of loose material or old adhesives. For a better finish with thinner papers and poorer quality walls the wall can be cross-lined (horizontally) with lining paper first. Accurate room measurements (length, width, and height) along with number of window and door openings is essential for ordering wallpaper. Large drops, or repeats, in a pattern can be cut and hung more economically by working from alternating rolls of paper.