Construction paper, also known as sugar paper, is coloured cardstock paper. The texture is slightly rough, and the surface is unfinished. Due to the source material, mainly wood pulp, small particles are visible on the paper's surface. It is used for projects or crafts.
The etymology of "sugar paper" lies in its use for making bags to contain sugar. It is related to the "blue paper" used by confectionery bakers in England from the 17th century onwards; for example, in the baking of Regency ratafia cakes (or macaroons). [1]
The term "construction paper" was associated with the material in the early 20th century, although the general process for creating the paper began in the late 19th century when industrialized paper production and synthetic dye technology were combined. Around that time, construction paper was primarily advertised for classroom settings as an effective canvas for supporting multiple drawing media. The process for creating the paper involved a machine oriented process that exposed the paper to dyes while it was still pulp, resulting in a thorough distribution and brilliance of colour. The primary dyes involved in producing construction paper were abundant until Germany, the main producer of aniline for dyes at the time, became involved in World War I and ceased its exports. The shortage marked a period in which construction paper was created using substitute colouring methods. [2]
One of the defining features of construction paper is the radiance of its colours. Before the methodology behind construction paper's colouring was introduced, most paper was coloured by pigments and vegetable oil, which had weaker staining capabilities. Synthetic dyes were later developed, which provided a wider range of colours, stronger dyeing strength, and had lower costs. However, the colours given by synthetic dyes tend to fade over short periods of time, an effect often seen in construction paper, noted by greying colours and brittleness. [2]
The animated television series Blue's Clues and South Park were initially made using construction paper and stop motion. [3]
Blue is one of the three primary colours in the RYB colour model, as well as in the RGB (additive) colour model. It lies between violet and cyan on the spectrum of visible light. The term blue generally describes colours perceived by humans observing light with a dominant wavelength that’s between approximately 450 and 495 nanometres. Most blues contain a slight mixture of other colours; azure contains some green, while ultramarine contains some violet. The clear daytime sky and the deep sea appear blue because of an optical effect known as Rayleigh scattering. An optical effect called the Tyndall effect explains blue eyes. Distant objects appear more blue because of another optical effect called aerial perspective.
A dye is a colored substance that chemically bonds to the substrate to which it is being applied. This distinguishes dyes from pigments which do not chemically bind to the material they color. Dye is generally applied in an aqueous solution and may require a mordant to improve the fastness of the dye on the fiber.
Screen printing is a printing technique where a mesh is used to transfer ink onto a substrate, except in areas made impermeable to the ink by a blocking stencil. A blade or squeegee is moved across the screen to fill the open mesh apertures with ink, and a reverse stroke then causes the screen to touch the substrate momentarily along a line of contact. This causes the ink to wet the substrate and be pulled out of the mesh apertures as the screen springs back after the blade has passed. One colour is printed at a time, so several screens can be used to produce a multi-coloured image or design.
The chemical industry comprises the companies and other organizations that develop and produce industrial, specialty and other chemicals. Central to the modern world economy, it converts raw materials into commodity chemicals for industrial and consumer products. It includes industries for petrochemicals such as polymers for plastics and synthetic fibers; inorganic chemicals such as acids and alkalis; agricultural chemicals such as fertilizers, pesticides and herbicides; and other categories such as industrial gases, speciality chemicals and pharmaceuticals.
Food coloring, or color additive, is any dye, pigment, or substance that imparts color when it is added to food or drink. They can be supplied as liquids, powders, gels, or pastes. Food coloring is used in both commercial food production and domestic cooking. Food colorants are also used in a variety of non-food applications, including cosmetics, pharmaceuticals, home craft projects, and medical devices. Colorings may be natural or artificial/synthetic.
Isatis tinctoria, also called woad, dyer's woad, dyer's-weed, or glastum, is a flowering plant in the family Brassicaceae with a documented history of use as a blue dye and medicinal plant. Its genus name, Isatis, derives from the ancient Greek word for the plant, ἰσάτις. It is occasionally known as Asp of Jerusalem. Woad is also the name of a blue dye produced from the leaves of the plant. Woad is native to the steppe and desert zones of the Caucasus, Central Asia to Eastern Siberia and Western Asia but is now also found in South-Eastern and Central Europe and western North America.
Paperboard is a thick paper-based material. While there is no rigid differentiation between paper and paperboard, paperboard is generally thicker than paper and has certain superior attributes such as foldability and rigidity. According to ISO standards, paperboard is a paper with a grammage above 250 g/m2, but there are exceptions. Paperboard can be single- or multi-ply.
Pulpwood can be defined as timber that is ground and processed into a fibrous pulp. It is a versatile natural resource commonly used for paper-making but also made into low-grade wood and used for chips, energy, pellets, and engineered products.
Sealing wax is a wax material of a seal which, after melting, hardens quickly, forming a bond that is difficult to break without noticeable tampering. Wax is used to verify that something such as a document is unopened, to verify the sender's identity, and as decoration. Sealing wax can also be used to take impressions of other seals. Wax was used to seal letters close and later, from about the 16th century, envelopes. Long before sealing wax was employed, the Romans used bitumen for this purpose.
Chromolithography is a method for making multi-colour prints. This type of colour printing stemmed from the process of lithography, and includes all types of lithography that are printed in colour. When chromolithography is used to reproduce photographs, the term photochrome is frequently used. Lithography is a method of printing on flat surfaces using a flat printing plate instead of raised relief or recessed intaglio techniques.
Sandpainting is the art of pouring coloured sands, and powdered pigments from minerals or crystals, or pigments from other natural or synthetic sources onto a surface to make a fixed or unfixed sand painting. Unfixed sand paintings have a long established cultural history in numerous social groupings around the globe, and are often temporary, ritual paintings prepared for religious or healing ceremonies. This form of art is also referred to as drypainting.
Hand-colouring refers to any method of manually adding colour to a monochrome photograph, generally either to heighten the realism of the image or for artistic purposes. Hand-colouring is also known as hand painting or overpainting.
Textile printing is the process of applying color to fabric in definite patterns or designs. In properly printed fabrics the colour is bonded with the fibre, so as to resist washing and friction. Textile printing is related to dyeing but in dyeing properly the whole fabric is uniformly covered with one colour, whereas in printing one or more colours are applied to it in certain parts only, and in sharply defined patterns.
Paper is a thin sheet material produced by mechanically or chemically processing cellulose fibres derived from wood, rags, grasses, or other vegetable sources in water, draining the water through a fine mesh leaving the fibre evenly distributed on the surface, followed by pressing and drying. Although paper was originally made in single sheets by hand, almost all is now made on large machines—some making reels 10 metres wide, running at 2,000 metres per minute and up to 600,000 tonnes a year. It is a versatile material with many uses, including printing, painting, graphics, signage, design, packaging, decorating, writing, and cleaning. It may also be used as filter paper, wallpaper, book endpaper, conservation paper, laminated worktops, toilet tissue, currency, and security paper, or in a number of industrial and construction processes.
Chromoxylography was a colour woodblock printing process, popular from the mid-19th to the early-20th century, commonly used to produce illustrations in children's books, serial pulp magazines, and cover art for yellow-back and penny dreadfuls. The art of relief engraving and chromoxylography was perfected by engravers and printers in the 19th century, most notably in Victorian London by engraver and printer Edmund Evans who was particularly good with the process, producing a wide range of hues and tones through color mixing. Chromoxylography was a complicated technique, requiring intricate engraving and printing for the best results. Less expensive products, such as covers for pulp magazines, had to be produced with few colours, often only two or three, whereas more intricate and expensive books and reproductions of paintings used as many as a dozen or more colors. For each colour used, a separate woodblock had to be carved of the image being reproduced.
Paper chemicals designate a group of chemicals that are used for paper manufacturing, or modify the properties of paper. These chemicals can be used to alter the paper in many ways, including changing its color and brightness, or by increasing its strength and resistance to water. The chemicals can be defined on basis of their usage in the process.
Kashmiri papier-mâché is a handicraft of Kashmir that was brought by Muslim saint Mir Sayyid Ali Hamadani from Persia in the 14th century to medieval India. It is based primarily on paper pulp, and is a richly decorated, colourful artifact; generally in the form of vases, bowls, or cups, boxes, trays, bases of lamps, and many other small objects. These are made in homes, and workshops, in Srinagar, and other parts of the Kashmir Valley, and are marketed primarily within India, although there is a significant international market. The product is protected under the Geographic Indication Act 1999 of Government of India, and was registered by the Controller General of Patents Designs and Trademarks during the period from April 2011 to March 2012 under the title "Kashmir Paper Machie".
Gulal or abir is the traditional name given to the coloured powders used for some Hindu rituals, in particular for the Holi festival or Dol Purnima. During Holi, which celebrates love and equality, people throw these powder solutions at each other while singing and dancing.
Élisabeth Thuillier and Marie-Berthe Thuillier were a mother-daughter team of French colourists. They ran a workshop in Paris, where their employees hand-coloured early films and photographic slides using their plans and colour choices. They are remembered especially for the work they did for the director Georges Méliès.
Yūzen (友禅) is a Japanese resist dyeing technique where dyes are applied inside outlines of dyed or undyed rice-paste resist, which may be drawn freehand or stencilled; the paste keeps the dye areas separated. Originating in the 17th century, the technique became popular as both a way of subverting sumptuary laws on dress fabrics, and also as a way to quickly produce kimono that appeared to be painted freehand with dyes. The technique was named after Miyazaki Yūzen (宮崎友禅), a 17th century fan painter who perfected the technique. Miyazaki Yūzen's fan designs became so popular that a book called the yūzen-hiinagata was published in 1688, showing similar patterns applied to kosode. A fashion for elaborate pictorial yūzen designs lasted until 1692.
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