What is wallpapre ?

Wallpaper is a kind of material used to cover and decorate the interior walls of homes, offices, and other buildings; it is one aspect of interior decoration. It is usually sold in rolls and is put onto a wall using wallpaper paste. Wallpapers can come plain (so that it can be painted), textured (such as Anaglypta), or with patterned graphics. Wallpaper printing techniques include surface printing, gravure printing, silk screen-printing, rotary printing, and digital printing. Mathematically speaking, there are seventeen basic patterns, described as wallpaper groups, that can be used to tile an infinite plane. All manufactured wallpaper patterns are based on these groups. A single pattern can be issued in several different colorways.

History

Wallpaper, using the printmaking technique ofwoodcut, gained popularity in Renaissance Europe amongst the emerging gentry. The elite of society were accustomed to hanging large tapestries on the walls of their homes, a tradition from the Middle Ages. These tapestries added color to the room as well as providing an insulating layer between the stone walls and the room, thus retaining heat in the room. However, tapestries were extremely expensive and so only the very rich could afford them. Less well-off members of the elite, unable to buy tapestries due either to prices or wars preventing international trade, turned to wallpaper to brighten up their rooms.

Early wallpaper featured scenes similar to those depicted on tapestries, and large sheets of the paper were sometimes hung loose on the walls, in the style of tapestries, and sometimes pasted as today.Prints were very often pasted to walls, instead of being framed and hung, and the largest sizes of prints, which came in several sheets, were probably mainly intended to be pasted to walls. Some important artists made such pieces, notably Albrecht Dürer, who worked on both large picture prints and also ornament prints intended for wall-hanging. The largest picture print was The Triumphal Archcommissioned by the Holy Roman Emperor Maximilian I and completed in 1515. This measured a colossal 3.57 by 2.95 metres, made up of 192 sheets, and was printed in a first edition of 700 copies, intended to be hung in palaces and, in particular, town halls, after hand-coloring.

Very few samples of the earliest repeating pattern wallpapers survive, but there are a large number ofold master prints, often in engraving of repeating or repeatable decorative patterns. These are calledornament prints and were intended as models for wallpaper makers, among other uses.

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.

During the Protectorate under Oliver Cromwell, the manufacture of wallpaper, seen as a frivolous item by the Puritan government, was halted. Following the Restoration of Charles II, wealthy people across England began demanding wallpaper again - Cromwell's regime had imposed a boring culture on people, and following his death, wealthy people began purchasing comfortable domestic items which had been banned under the Puritan state. In 1712, during the reign of Queen Anne, a wallpaper taxwas introduced which was not abolished until 1836. By the mid-eighteenth century, Britain was the leading wallpaper manufacturer in Europe, exporting vast quantities to Europe in addition to selling on the middle-class British market. However this trade was seriously disrupted in 1755 by the Seven Years War and later the Napoleonic Wars, and by a heavy level of duty on imports to France.

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 Réveillon 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 theMontgolfier brothers. The landscape painter Jean-Baptiste Pillement discovered in 1763 a method to use fast colours. Towards the end of the century the fashion for scenic wallpaper revived in both England and France, leading to some enormous panoramas, like the 1804 20 strip wide Panorama, designed by the artist Jean-Gabriel Charvet for the French Manufacture Joseph Dufour et Cie showing the Voyages of Captain Cook. One of this famous so called "papier peint" wallpaper is still in situ inHam House, Peabody Massachusetts. Beside Joseph Dufour et Cie other French manufacturers of panoramic scenic and trompe l'œil wallpapers, Zuber et Cie and Arthur et Robert exported their product across Europe and North America. Zuber et Cie's c. 1834 design Views of North America is installed in the Diplomatic Reception Room of the White House. Like most of eighteenth century wallpapers, this was designed to be hung above a dado.

Types and sizes

Modern wallcoverings are diverse. Two of the most common factory trimmed sizes of wallpaper are referred to as "American" and "European" rolled goods. American rolled goods are 27 inches by 27 feet (8.2 m) in length. European rolled goods are 21.5 inches wide by 33 feet (10 m) in length. Approx. 60 square feet (5.6 m²). Most wallpaper borders are sold by linear foot and with a wide range of widths therefore square footage is not applicable. Although some may require trimming.

The most common wall covering for residential use and generally the most economical is prepasted vinyl coated paper, commonly called "strippable" which can be misleading. Cloth backed vinyl is fairly common and durable. Lighter vinyls are easier to handle and hang. Paper backed vinyls are generally more expensive, significantly more difficult to hang, and can be found in wider untrimmed widths. Foil wallpaper generally has paper backing and can (exceptionally) be up to 36 inches wide, and be very difficult to handle and hang. Textile wallpapers include silks, linens, grass cloths, strings, rattan, and actual impressed leaves. There are acoustical wall carpets to reduce sound. Customized wallcoverings are available at high prices and most often have minimum roll orders.

Solid vinyl with a cloth backing is the most common commercial wallcovering and comes from the factory as untrimmed at 54 inches approximately, to be overlapped and double cut by the installer. This same type can be pre-trimmed at the factory to 27 inches approximately.

Custom wallpaper printing

New digital inkjet printing technologies using ultraviolet (UV) cured inks are being used for custom wallpaper production. Very small runs can be made, even a single wall. Photographs or digital art are output onto blank wallpaper material. Typical installations are corporate lobbies, restaurants, athletic facilities, and home interiors. This gives a designer the ability to give a space the exact look and feel desired.

Use

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 excessivesteam. Proper preparation includes the repair of any defects in the drywall or plaster and the removal of loose material or old adhesives. 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. Paper is sold (with very few exceptions) in double rolls.