Scrim (material)
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A scrim is a woven material, either finely woven lightweight fabric widely used in theatre, or a heavy, coarse woven material used for reinforcement in both building and canvasmaking.


Light gauzy material

A scrim or gauze is often a very light
textile Textile is an umbrella term that includes various fiber-based materials, including fibers, yarns, filaments, threads, different fabric types, etc. At first, the word "textiles" only referred to woven fabrics. However, weaving is not the ...
made from
cotton Cotton is a soft, fluffy staple fiber that grows in a boll, or protective case, around the seeds of the cotton plants of the genus ''Gossypium'' in the mallow family Malvaceae. The fiber is almost pure cellulose, and can contain minor perce ...
, or sometimes
flax Flax, also known as common flax or linseed, is a flowering plant, ''Linum usitatissimum'', in the family Linaceae. It is cultivated as a food and fiber crop in regions of the world with temperate climates. Textiles made from flax are known in ...
or other materials. It is lightweight and translucent, which means it is often used for making
curtain A curtain is a piece of cloth or other material intended to block or obscure light, air drafts, or (in the case of a shower curtain), water. A curtain is also the movable screen or drape in a theatre that separates the stage from the auditorium ...
s. The fabric can also be used for
bookbinding Bookbinding is the process of physically assembling a book of codex format from an ordered stack of ''signatures'', sheets of paper folded together into sections that are bound, along one edge, with a thick needle and strong thread. Cheaper, b ...
and
upholstery Upholstery is the work of providing furniture, especially seats, with padding, springs, webbing, and fabric or leather covers. The word also refers to the materials used to upholster something. ''Upholstery'' comes from the Middle English w ...
. Scrims have seen extensive use in
theatre Theatre or theater is a collaborative form of performing art that uses live performers, usually actors or actresses, to present the experience of a real or imagined event before a live audience in a specific place, often a stage. The perform ...
. There are several types used for
special effect Special effects (often abbreviated as SFX, F/X or simply FX) are illusions or visual tricks used in the theatre, film, television, video game, amusement park and simulator industries to simulate the imagined events in a story or virtual wor ...
s. The variety typically used for
special effect Special effects (often abbreviated as SFX, F/X or simply FX) are illusions or visual tricks used in the theatre, film, television, video game, amusement park and simulator industries to simulate the imagined events in a story or virtual wor ...
s is called ''sharkstooth scrim''. However, in theater a scrim can refer to any such thin screen, and is made out of a wide variety of materials. Sharkstooth scrim is woven and earns its name because the weave resembles a set of triangles that resemble a shark's teeth with openings similar in size to a window screen's. The most common effects that scrim is used for is the 'reveal effect', in which an actor or scene is made to appear or disappear by using the scrim and appropriate lighting. Other common effects include sharp silhouettes, backlit from behind the scrim, or other shadow effects (shrinking and growing a shadow). The
bobbinet Bobbinet tulle or genuine tulle is a specific type of tulle which has been made in the United Kingdom since the invention of the bobbinet machine. John Heathcoat coined the term "bobbin net", or bobbinet as it is spelled today, to distinguish th ...
/bobbinette is a type of scrim that has a hexagonal hole shape and comes in a variety of hole sizes. It is used for a number of lighting effects in the film and theatre industries. Scrim is also used in clothing, usually covering the face or head. This allows the wearer to see out, while preventing others from seeing in. This may also be combined with
camouflage Camouflage is the use of any combination of materials, coloration, or illumination for concealment, either by making animals or objects hard to see, or by disguising them as something else. Examples include the leopard's spotted coat, the ...
to completely hide a person, such as a
sniper A sniper is a military/paramilitary marksman who engages targets from positions of concealment or at distances exceeding the target's detection capabilities. Snipers generally have specialized training and are equipped with high-precision r ...
. A scrim was an integral part of the
Beijing Olympic Stadium The National Stadium (), also known as the Bird's Nest (), is an 80,000-capacity stadium in Beijing. The stadium was jointly designed by architects Jacques Herzog and Pierre de Meuron from Basel-based architecture team Herzog & de Meuron, pr ...
in Beijing. It was the screen running around the top of the stadium during the opening ceremonies on which all kinds of scenes were projected.
Li Ning Li Ning (born March 10, 1963 in Liuzhou, Guangxi) is a Chinese retired gymnast, billionaire entrepreneur, and the founder of the eponymous sportswear company Li-Ning. Gymnastics career Li started training at the age of eight and was select ...
ran around it just before the
cauldron A cauldron (or caldron) is a large pot ( kettle) for cooking or boiling over an open fire, with a lid and frequently with an arc-shaped hanger and/or integral handles or feet. There is a rich history of cauldron lore in religion, mythology, and ...
lighting for
2008 Summer Olympics The 2008 Summer Olympics (), officially the Games of the XXIX Olympiad () and also known as Beijing 2008 (), were an international multisport event held from 8 to 24 August 2008, in Beijing, China. A total of 10,942 athletes from 204 Na ...
. A scrim (also called a screen) is used as an acoustically transparent covering for a
loudspeaker A loudspeaker (commonly referred to as a speaker or speaker driver) is an electroacoustic transducer that converts an electrical audio signal into a corresponding sound. A ''speaker system'', also often simply referred to as a "speaker" or " ...
to protect the diaphragm and dust cap, or as an
air filter A particulate air filter is a device composed of fibrous, or porous materials which removes solid particulates such as dust, pollen, mold, and bacteria from the air. Filters containing an adsorbent or catalyst such as charcoal (carbon) may a ...
element to protect the
voice coil A voice coil (consisting of a former, collar, and winding) is the coil of wire attached to the apex of a loudspeaker cone. It provides the motive force to the cone by the reaction of a magnetic field to the current passing through it. The te ...
and other components of the
transducer A transducer is a device that converts energy from one form to another. Usually a transducer converts a signal in one form of energy to a signal in another. Transducers are often employed at the boundaries of automation, measurement, and contr ...
.


Applications to stage lighting

Scrims both reflect and transmit light. This means that if a light from a front-of-house position is shone at a scrim, then both the scrim and everything behind it will be lit. This can lead to a variety of interesting effects: *A scrim will appear entirely opaque if everything behind it is unlit and the scrim itself is grazed by light from the sides or from above. *A scrim will appear nearly transparent if a scene behind it is lit, but there is no light on the scrim. *A dreamy or foggy look can be achieved by lighting a scene entirely behind a scrim. *If a light with a
gobo Gobo may refer to: Places * Gobō, Wakayama, a city located in Wakayama Prefecture, Japan ** Gobō Station, a railway station in the city * Gobo, Cameroon, a commune in Cameroon Plants * Gobō (''Arctium lappa''), a biennial plant * Gobo (bur ...
is aimed at a scrim, the image will appear on the scrim, but also any objects behind the scrim will be lit by the pattern as well. In general, anything that is lit will be seen on both sides of a scrim: scrims do not absorb light. Scrim can also be used in theatre in combination with a
cyclorama A cyclorama is a panoramic image on the inside of a cylindrical platform, designed to give viewers standing in the middle of the cylinder a 360° view, and also a building designed to show a panoramic image. The intended effect is to make view ...
or backdrop. The idea is similar to the other uses. When the drop is lit (or images or video are rear-projected onto the back of the drop), the images or colours projected are visible. However, when the drop is not lit, the images or colors will disappear. A scrim can also help dull the image, creating a greater sense of depth. Another effect is caused by layering two scrims, or even by placing a mirror behind a scrim and lighting it: the familiar moire effect. This can often cause audience disorientation.


Reinforcement material

The technique of using scrim as a reinforcement occurs commonly in the manufacture of glass-fiber or
carbon-fiber Carbon fiber-reinforced polymers (American English), carbon-fibre-reinforced polymers (Commonwealth English), carbon-fiber-reinforced plastics, carbon-fiber reinforced-thermoplastic (CFRP, CRP, CFRTP), also known as carbon fiber, carbon compo ...
composites: scrim layers may cover the exterior surface of the carbon-fiber laminate for an improved protective surface.
Jute Jute is a long, soft, shiny bast fiber that can be spun into coarse, strong threads. It is produced from flowering plants in the genus ''Corchorus'', which is in the mallow family Malvaceae. The primary source of the fiber is ''Corchorus olit ...
scrim can reinforce
plaster Plaster is a building material used for the protective or decorative coating of walls and ceilings and for Molding (decorative), moulding and casting decorative elements. In English, "plaster" usually means a material used for the interiors of ...
in sculpture, when casting or working directly in plaster. A similar usage of the term is found in
sailcloth Sailcloth encompasses a wide variety of materials that span those from natural fibers, such as flax, hemp or cotton in various forms of sail canvas, to synthetic fibers, including nylon, polyester, aramids, and carbon fibers in a variety of wov ...
manufacture, where scrim is a strong loose weave of fibres laminated into the cloth to provide extra strength and stability to sails. In
carpentry Carpentry is a skilled trade and a craft in which the primary work performed is the cutting, shaping and installation of building materials during the construction of buildings, ships, timber bridges, concrete formwork, etc. Carpenters tr ...
, scrim is a very heavy, coarsely-woven fabric (similar to hessian or to coarse canvas) which is stretched over interior boards to provide support for
wallpaper 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 ...
and to add an extra rigidity. This method of construction, widely used in older houses, is often referred to as "
scrim and sarking Scrim and sarking is a method of interior construction widely used in Australia and New Zealand in the late 19th and early 20th centuries. In this method, wooden panels were nailed over the beams and joists of a house frame, and a heavy, loosely ...
", the sarking being the board. Scrim is also an item that utilizes plies of tissue reinforced with a layer of nylon (much like fishing line or heavy duty monofilament) or cotton thread. 2-ply tissue 1-ply scrim the layer of scrim is not counted in the ply count. 2/1 would be a 2-ply scrim. Scrim is a glass fibre (previously
burlap Hessian (, ), burlap in the United States and Canada, or crocus in Jamaica and the wider Caribbean, is a woven fabric usually made from skin of the jute plant or sisal fibres, which may be combined with other vegetable fibres to make rope, nets, ...
) open-mesh tape used to cover joints in
plasterboard Drywall (also called plasterboard, dry lining, wallboard, sheet rock, gypsum board, buster board, custard board, and gypsum panel) is a panel made of calcium sulfate dihydrate (gypsum), with or without additives, typically extruded between thick ...
/
wall board Drywall (also called plasterboard, dry lining, wallboard, sheet rock, gypsum board, buster board, custard board, and gypsum panel) is a panel made of calcium sulfate dihydrate (gypsum), with or without additives, typically extruded between thick ...
prior to plastering. It prevents a crack appearing in the plaster finish at a later date. The roll of tape may be plain or adhesive-coated to facilitate its installation. Scrim was handed out during
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...
to tape
window A window is an opening in a wall, door, roof, or vehicle that allows the exchange of light and may also allow the passage of sound and sometimes air. Modern windows are usually glazed or covered in some other transparent or translucent materia ...
s, so that they should not cause hazardous
shrapnel Shrapnel may refer to: Military * Shrapnel shell, explosive artillery munitions, generally for anti-personnel use * Shrapnel (fragment), a hard loose material Popular culture * ''Shrapnel'' (Radical Comics) * ''Shrapnel'', a game by Adam C ...
in case of
bomb A bomb is an explosive weapon that uses the Exothermic process, exothermic reaction of an explosive material to provide an extremely sudden and violent release of energy. Detonations inflict damage principally through ground- and atmosphere-t ...
blasts. Molly Cutpurse: "''Miriam's Family Blitz''", Lilith Books, 2015, page 151.


References

* Kersmaekers, Ivo (2019): ''Gauzes in Theatre. Their use through the ages''. In: ''Die Vierte Wand. Organ der Initiative TheaterMuseum Berlin''. 009/2019, pp. 146–151
online at the Internet Archive


External links

* {{fabric Woven fabrics Scenic design Stage lighting Building Loudspeakers de:Gaze fr:Gaze ru:Газ (ткань) sv:Gas (textil)