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Firecracker

Small explosive meant to produce noise

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A firecracker (cracker, noise maker, banger) is a small explosive device primarily designed to produce a large amount of noise, especially in the form of a loud bang, usually for celebration or entertainment; any visual effect is incidental to this goal. They have fuses, and are wrapped in a heavy paper casing to contain the explosive compound. Firecrackers, along with fireworks, originated in China.

01History

The predecessor of the firecracker was a type of heated bamboo, used as early as 200 BCE, that exploded when heated continuously. The Chinese name for firecrackers, baozhu (爆竹), literally means "exploding bamboo." After the invention of gunpowder, gunpowder firecrackers had a shape that resembled bamboo and produced a similar sound, so the name "exploding bamboo" was retained. In traditional Chinese culture, firecrackers were used to ward away spirits, and was later co-opted for military use.

Large flower cracker set off at night
Large flower cracker set off at night
Dyer Ball on firecrackers
Dyer Ball on firecrackers

02Firecrackers production and sales

Ingredients

Firecrackers are generally made of cardboard or plastic, with flash powder (a mixture of oxidizer and metallic fuel), cordite, smokeless powder, or black powder as the propellant. This is not always the case, however. Anything from match heads to kerosene and lighter fluid has been used successfully in making firecrackers. The key to loud firecrackers, however, although in part lying in the propellant substance, is pressure. The entire firecracker must be very tightly packed in order for it to work best. Flash powder, however, does not need to be packed tightly, and should not be.

Manufacturing

James Dyer Ball, in his book Things Chinese, has a detailed description about the process and material used for making firecrackers at the end of the 19th century. At that time, firecrackers were made by women and children workers, using straw paper to make the body of the firecracker, while the fuse was made of paper imported from Japan made from the inner lining of the bamboo plant, or rice paper, stiffened with buckwheat paste. The bamboo paper was cut into strips of 14 inches (360 mm) long and 13 inch (8.5 mm) wide, laid on a table; a string of gunpowder was placed at the center with a hollow tube, then twisted up to make a piece of fuse. The firecracker tubes were made from pieces of straw paper wrapped around iron rods of various diameters and then tightened with a special tool. 200 to 300 firecrackers were tied up in a bunch, then red clay was spread at the bottom of the bunch and forced into each end of the firecracker with a punch; gunpowder was poured in, then the other end was sealed with an awl by turning the tube inward, and a fuse inserted.

Green or environment friendly firecracker

After India's National Green Tribunal (NGT) enacted a ban on the sale and use of crackers on Diwali festival in 2020, the Council for Scientific and Industrial Research (CSIR) developed green crackers made from cleaner raw materials which reduce emissions by suppressing the production of dust; their emissions are 30% lower but are also of reduced loudness, at 110-125 decibels instead of the more than 160 decibels of traditional firecrackers. However, green crackers still contain harmful pollutants such as aluminium, barium, potassium nitrate and carbon.

Sales, packaging and branding

Early (pre-1920s) Chinese firecrackers (also known as "Mandarin firecrackers") were typically 12 to 2 inches (13 to 51 mm) long, and approximately 14 inch (6.4 mm) in diameter, and were charged with black powder. Mandarin crackers produced a less loud, duller thud compared to modern flash-light crackers (which utilize a different explosive known as flash powder). Mandarin crackers produced a dimmer, less brilliant flash when they exploded also. Individual Mandarin crackers were most often braided into "strings" of varying lengths, which, when ignited, exploded in rapid sequence. Generally, the strings (sometimes containing as many as several thousand crackers) would be hung from an overhead line before ignition. Most Mandarin crackers were colored all red and did not generally have designs or logos decorating their exterior surface (or "shell wraps"). Occasionally a few yellow and green colored Mandarin crackers were created and would be braided into the predominantly all-red strings to symbolize the emperor and the ruling class, while the numerous red crackers symbolized the common man.

Once flash powder, which produces a significantly sharper and brighter bang, replaced black powder as a firecracker's explosive charge (circa 1924), manufacturers began competing to gain loyalty of typical consumers (that is, mainly boys 8 to 16 years old). Thousands of brands were created during the flash-light cracker's heyday from the 1920s through the early 1970s. Only a small percentage of brands lasted more than a year or two. Collectors now seek the various labels from the era.

Until the mid-1980s, firecracker production was low-tech. They were handmade, beginning with rolling tubes. Once the firecracker tubes were rolled by hand (commonly from newspaper) and labelled, and then filled with powder, their ends were crimped and fuses inserted, all by hand. These finished firecrackers were usually braided into "strings" and sold in packs which came in many sizes, from the very small ("penny packs" containing as few as four to six firecrackers) to the most common size packs (containing 16 and 20 crackers per pack), to larger packs (containing 24, 30, 32, 40, 50, 60, 72, 90, 100, and 120 firecrackers), to huge "belts" and "rolls" (packages containing strings of several hundred to several thousand crackers, Phantom Fireworks sells rolls as large as 16,000 firecrackers). Firecracker packages were wrapped in colourful and translucent glassine paper, as well as clear cellophane, with glassine the most popular.

The final operation involved applying a branded label on each pack, then bundling finished packs into wholesale lots called "bricks" which contained an average of 80 packs each (varying according to the size of the packs being bundled; for example, packs of 32 crackers might have 40 packs per brick, compared to packs of 16 or 20 with 80 packs per brick).

A firecracker roll containing 10,000 firecrackers
A firecracker roll containing 10,000 firecrackers

03Usage

Laws governing production, sales and usage of firecrackers

Firecrackers, as well as other types of explosives, are subject to various laws in many countries, although firecrackers themselves are not usually considered illegal contraband material. It is usually the manufacture, sale, storage, and use of firecrackers that are subject to laws, including safety requirements for manufacture, the requirement of a permit to sell or store, or restrictions on the use of firecrackers.

Celebrations

Firecrackers are commonly used in celebration of holidays or festivals, such as Halloween, Independence Day (also known as the Fourth of July) in the United States, Diwali in India, Eid al-Fitr in Southeast Asia, Tihar in Nepal, Day of Ashura in Morocco, Guy Fawkes Night or Bonfire Night in the United Kingdom, Halloween in Ireland, Bastille Day in France, Spanish Fallas, in almost every cultural festival of Sri Lanka (e.g. Sri Lankan New Year), New Year's Eve and New Year's Day, and in the celebration of Chinese New Year by Chinese communities around the world.

Two men dressed as colonial soldiers carry a banner, exploding firecrackers, commemorating Guy Fawkes and his co-conspirators as part of Lewes Bonfire Night celebrations.
Two men dressed as colonial soldiers carry a banner, exploding firecrackers, commemorating Guy Fawkes and his co-conspirators as part of Lewes Bonfire Night celebrations.
Bullet Bomb Firecracker
Bullet Bomb Firecracker
Watch videos about FirecrackerExplainers and documentaries on YouTube (opens in a new tab)

Sources and credits

This article is adapted from the Wikipedia article Firecracker, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.

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