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It has been suggested that Baby diaper cake be merged into this article or section. (Discuss) Proposed since October 2011.

"Nappy" redirects here. For other uses, see Nappy (disambiguation) and Diaper (disambiguation).

For the geological term, see diapir.

Disposable baby diaper with resealable tapes and elasticated leg cuffs.

Different kinds of outer diapers.

A nappy (in Commonwealth English) or a diaper (in American English) is a kind of underwear that allows one to defecate or urinate on oneself discreetly. When diapers become soiled, they require changing; this process is often performed by a second person such as a parent or caregiver. Failure to change a diaper on a regular enough basis can result in diaper rash.

Diapers have been worn throughout human history. They are made of cloth or disposable materials. Cloth diapers are composed of layers of fabric such as cotton, hemp, bamboo or microfiber and can be washed and reused multiple times. Disposable diapers contain absorbent chemicals and are thrown away after use. The decision to use cloth or disposable diapers is a controversial one, owing to issues ranging from convenience, health, cost, and their effect on the environment. Plastic pants can be worn over diapers to avoid leaks, but with modern cloth diapers, this is no longer necessary.

Diapers are primarily worn by children who are not yet potty trained or experience bedwetting. However, they can also be used by adults with incontinence or in certain circumstances where access to a toilet is unavailable. These can include the elderly, those with a physical or mental disability, and people working in extreme conditions such as astronauts. It is not uncommon for people to wear diapers under dry suits. Diapers are usually worn out of necessity rather than choice, although there are exceptions; people such as infantilists and diaper fetishists wear diapers recreationally for comfort, emotional fulfillment, or sexual gratification. Terms such as "incontinence pads" can be used to refer to adult diapers.

An alternative to infant diapers is the infant potty training method or elimination communication, a technique that involves sound association, learning an infant’s body language, and reacting quickly enough to reach a suitable spot for elimination.^[1] This method is more commonly used in third-world countries whose citizens do not possess the financial means to purchase baby diapers.

History[link]

Etymology[link]

The Middle English word diaper originally referred to the type of cloth rather than its use; "diaper" was the term for a pattern of small repeated geometric shapes, and later came to describe a white cotton or linen fabric with this pattern.^[3] The first cloth diapers consisted of a special type of soft tissue sheet, cut into geometric shapes. This type of pattern was called diapering and eventually gave its name to the cloth used to make diapers and then to the diaper itself, traced back to 1590s England.^[4] This usage stuck in the United States and Canada following the British colonization of North America, but in Britain the word "nappy" took its place. Most sources believe nappy is a diminutive form of the word napkin.^[5]

Development[link]

This section is written like a personal reflection or essay rather than an encyclopedic description of the subject. Please help improve it by rewriting it in an encyclopedic style. (April 2011)

Unpleasant duties by Adriaen Brouwer, depicting the changing of a diaper.

Wrapping children not yet toilet trained, in some absorbent barrier, is as old as human history.

In the 19th century, the modern diaper/ nappy began to take shape and mothers in many parts of the world used cotton material, held in place with a fastening—eventually the safety pin. Cloth diapers in the United States were first mass produced in 1887 by Maria Allen. In the UK nappies were made out of terry towelling, often with an inner lining made out of soft muslin.

Here is an extract from 'The Modern Home Doctor' written by doctors in the UK in 1935.

"Nice old, soft bits of good Turkish towelling, properly washed, will make the softest of diaper coverings, inside which specially absorbent napkins (diapers), see below at 1A, soft, light, and easily washed, are contained. These should rarely be soiled once regular habits have been inculcated, especially during the night period in which it is most important to prevent habit formation

1A -(squares of butter muslin or Harrinton’s packed rolls of “mutton cloth” in packets, sold for polishing motor-cars, would do equally well and are very cheap and soft")

Once available rubber pants would sometimes be used over the cloth diaper/ nappy to prevent leakage. Doctors were antagonistic to this because they believed that the rubber would act as a poultice and damage the baby's skin.

The constant problem to be overcome was nappy /diaper rash and infection. The concern was that lack of air circulation would make this worse. It was later found that poor hygiene - inefficiently washed and bleached nappies and infrequent changes of nappy, allowing the baby to lie for some time with faecal matter in contact with the skin, were the two main causes of serious problems.

In the 20th century, the disposable diaper/ nappy gradually evolved through the inventions of several different people. In the 1930s Robinsons of Chesterfield had 'Destroyable Babies Napkins' listed in their catalogue for the wholesale market.^[6] In 1944, Hugo Drangel of the Swedish paper company Pauliström suggested an idea of placing sheets of paper tissue (cellulose wadding) inside the cloth diaper/ nappy and rubber pants. However cellulose wadding was rough against the skin and when wet, crumbled into balls.

In 1946, Marion Donovan used a shower curtain from her bathroom to create the "Boater", a plastic cover to go outside a diaper. First sold in 1949 at Saks Fifth Avenue's flagship store in New York City, patents were later issued in 1951 to Donovan who later sold the rights to the waterproof diaper for $1 million.^[7]

In 1947, a housewife in the UK, Valerie Hunter Gordon, started developing and making Paddi, a 2-part system of a disposable pad (cellulose wadding covered with cotton wool) and an outer plastic, adjustable garment with press-studs/ snaps. Initially she used old parachutes for the garment). She applied for the patent in April 1948, it was granted for the UK in October 1949 and in November 1949 she signed a contract with Robinsons of Chesterfield who then went into full production. In 1950 Boots the Chemist agreed to sell Paddi in all their UK branches. In 1951 the Paddi patent was granted for the USA and The whole of the World. Shortly after that, Playtex and several other large international companies tried unsuccessfully to buy out Paddi from Robinsons, realising the enormous potential of the product. Paddi was extremely successful for many years until the advent of 'all in one' diapers.^[8]

Initially the big manufacturers were unable to see the huge commercial possibilities of disposable nappies. In the UK in 1948, Valerie Hunter Gordon made over 400 Paddis herself using her sewing machine at the kitchen table. Her husband had unsuccessfully approached several companies for help and it was only a chance meeting with Sir Robert Robinson at a business dinner that got things going. In America, Marion Donovan could not find a manufacturer. In Sweden, Hugo Drangel's daughter Lil Karhola Wettergren, in 1956 elaborated her father's original idea, by adding a garment (again making a 2-part system like Paddi). However she met the same problem, with the purchasing managers, who were male, declaring they would never allow their wives to "put paper on their children."^[9]

After the Second World War, mothers increasingly wanted freedom from washing nappies so that they could work and travel causing an increasing demand for disposable diapers.

During the 1950s, companies such as Johnson and Johnson, Kendall, Parke-Davis, Playtex, and Molnlycke entered the disposable diaper market.

In 1956, Procter & Gamble began researching disposable diapers. Victor Mills, along with his project group including William Dehaas (both men who worked for the company) invented what would be trademarked "Pampers". Presented to Fred Wells as 'project p-57' (this was the plane Wells had taught American pilots to fly during WWII), Mills stated, "This one will fly." Although Pampers were conceptualized in 1959, the diapers themselves were not launched into the market until 1961.^[10]

Over the next few decades, the disposable diaper industry boomed and the competition between Procter & Gamble's Pampers and Kimberly Clark's Huggies resulted in lower prices and drastic changes to diaper design. Several improvements were made, such as the use of double gussets to improve diaper fit and containment. As stated in Procter & Gamble's initial 1973 patent for the use of double gussets in a diaper, “The double gusset folded areas tend to readily conform to the thigh portions of the leg of the infant. This allows quick and easy fitting and provides a snug and comfortable diaper fit that will neither bind nor wad on the infant…as a result of this snugger fit obtained because of this fold configuration, the diaper is less likely to leak or, in other words, its containment characteristics are greatly enhanced.”^[11] Further developments in diaper design were made, such as the introduction of refastenable tapes, the "hourglass shape" so as to reduce bulk at the crotch area, and the 1984 introduction of super-absorbent material from polymers known as sodium polyacrylate that were originally developed in 1966.^[12][13]

Types[link]

Disposable[link]

The first disposable diaper was invented by Valerie Hunter-Gordon (née de Ferranti),^[14] granddaughter of inventor Sebastian Ziani de Ferranti.

Ever since their introduction several decades ago, product innovations include the use of superabsorbent polymers, resealable tapes, and elasticised waist bands. They are now much thinner and much more absorbent. The product range has more recently been extended into children's toilet training phase with the introduction of training pants and pant diapers, which are now undergarments.

Modern disposable baby diapers and incontinence products have a layered construction,^[15] which allows the transfer and distribution of urine to an absorbent core structure where it is locked in. Basic layers are an outer shell of breathable polyethylene film or a nonwoven and film composite which prevents wetness and soil transfer, an inner absorbent layer of a mixture of air-laid paper and superabsorbent polymers for wetness, and a layer nearest the skin of nonwoven material with a distribution layer directly beneath which transfers wetness to the absorbent layer.

Other common features of disposable diapers include one or more pairs of either adhesive or velcro tapes to keep the diaper securely fastened. Some diapers have tapes which are refastenable to allow adjusting of fit or reapplication after inspection. Elasticized fabric single and double gussets around the leg and waist areas aid in fitting and in containing urine or stool which has not been absorbed. In fact, the first patent for the use of double gussets in a diaper was in 1973 by the Procter & Gamble Company^[11] Some diapers lines now commonly include wetness indicators, in which a chemical included in the fabric of the diaper changes color in the presence of moisture to alert the carer or user that the diaper is wet.^[16] A disposable diaper may also include an inner fabric designed to hold moisture against the skin for a brief period before absorption to alert a toilet training or bedwetting user that they have urinated. Most materials in the diaper are held together with the use of a hot melt adhesive which is applied in spray form or multi lines, an elastic hot melt is also used to help with pad integrity when the diaper is wet.

Some disposable diapers include fragrances, lotions or essential oils in order to help mask the scent of a soiled diaper or to protect the skin. Care of disposable diapers is minimal, and primarily consists of keeping them in a dry place before use, with proper disposal in a garbage receptacle upon soiling. Stool is supposed to be deposited in the toilet, but is generally put in the garbage with the rest of the diaper.

Cloth Diaper[link]

Baby cloth diaper filled with extra cloth.

Cloth diapers are reusable and can be made from natural fibers, manmade materials, or a combination of both.^[17] They are often made from industrial cotton which may be bleached white or left the fiber’s natural color. Other natural fiber cloth materials include wool, bamboo, and unbleached hemp. Manmade materials such as an internal absorbent layer of microfiber toweling or an external waterproof layer of polyurethane laminate (PUL) may be used. Polyester fleece and faux suedecloth are often used inside cloth diapers as a "stay-dry" wicking liner because of the non-absorbent properties of those synthetic fibers.

Safe Diaper Clip from mid-1960s.

Traditionally, cloth diapers consisted of a folded square or rectangle of cloth, fastened with safety pins. The "Safe Diaper Clip," an alternative to traditional safety pins, was invented and patented in 1961 by Edward Moonan of Boonville, NY.^[18] The "Safe Diaper Clip" never took off, due to simultaneous development in the disposable diaper industry. Today, most cloth diapers are fastened with hook and loop tape (velcro) or snaps.

Modern cloth diapers come in a host of shapes, including preformed cloth diapers, all-in-one diapers with waterproof exteriors, fitted diaper with covers and pocket or "stuffable" diapers, which consist of a water-resistant outer shell sewn with an opening for insertion of absorbent material inserts.^[19] Many design features of modern cloth diapers have followed directly from innovations initially developed in disposable diapers, such as the use of the hour glass shape, materials to separate moisture from skin and the use of double gussets, or an inner elastic band for better fit and containment of waste material.^[17] Several cloth diaper brands use variations of Procter & Gamble's original 1973 patent use of a double gusset in Pampers.^[11]

List of Cloth Diaper Types[link]

Cloth diapers require dry storage, and equipment and supplies for cleaning. Cloth diapers place less stress on landfills than single-use disposable diapers, but also require washing in water with detergent to be properly cleaned. The method of "dry-pailing" after removal of solid waste and washing on a cold or warm wash removes most bacteria. Sun exposure will kill any remainder and usually resolves any staining issues. As an alternative to at-home cleaning, some locations have a fee-based cloth diapering service that delivers clean diapers and picks up soiled ones, while parents in more rural areas often find that they must clean diapers using their own cleaning facilities.

• Terry Towelling Diapers - Terry diapers are large, flat square sheets of absorbent cotton material, which have to be folded and fasten together with safety pins. The towel like fabric is usually white in colour.

• Prefolds – Prefold diapers are a rectangle of layered cloth, sewn together in the center third to create a thicker layer. They come in several sizes to correspond with a baby’s weight range. Prefolds are fastened with pins or a Snappi, or folded in thirds and laid inside a cover. They require a cover to be waterproof. Prefolds must be washed after each diaper change but the cover can be reused several times if it is not soiled with feces.

• Flats – Flat diapers are a single large layer of cloth that must be folded into the correct size to fit a baby. Flats must be pinned or Snappi’d to stay on the baby. Flats require a cover to be waterproof. Flat diapers must be washed after each diaper change but the cover can be reused several times if it is not soiled with feces.

• Fitteds – Fitted diapers look similar to a disposable diaper and are made of a few layers of absorbent cloth material. Fitteds are fastened shut in three ways: pins, snaps, or hook and loop tape (velcro). Fitted diapers come in several sizes to fit a baby’s weight range. They require a separate cover to be waterproof. Fitted diapers must be washed after each diaper change but the cover can be reused several times if it is not soiled with feces.

• Pocket diapers – Pocket diapers consist of a waterproof outer layer and a moisture-wicking inner layer that are sewn together on three sides to create a stuffable pocket or sleeve. Pocket diapers look similar to disposable diapers and some are virtually as slim as disposable nappies. The pocket is stuffed with absorbent material to customize an absorbency level for each baby. Typically suede cloth or microfleece fibre is used to wick the moisture away from the babies skin to prevent diaper rash. Pocket diapers dry more quickly than all-in-one diapers because they have less material in them, and those with a sleeve open at both ends mean that the insert will agitate its own way out during the wash, so you don't need to manually remove it before washing. A pocket diaper must be washed after each diaper change. Pocket diapers often come in one size that can be adjusted with snaps and hook and loop tape (velcro) to fit a baby over a wide variety of weight ranges. Modern Pocket diapers use "green" materials, such as bamboo textiles and biodegradable liners which significantly improves the resource savings of the modern pocket diaper.^[20]

• All-in-one diaper – An all in one (AIO) diaper consists of a waterproof outer layer, sewn together with a moisture wicking inner layer and an attached absorbent flap. AIO diapers are the most convenient diapers to use since there is only one item to put on the baby; however, they take longer to dry since they are thicker than other options. AIOs can be sized for a particular weight range or one-sized to adjust to a wider weight range. AIOs must be washed after each diaper change.

• All-in-two diaper – An all-in-two- diaper (AI2) is a diaper that can function as an all-in-one diaper or as a diaper cover, thus the name all-in-two. An all-in-two diaper has a snap in, or lay in insert that can be removed and replaced with a clean insert after it has been wet. The cover of an all-in-two only needs to be laundered if the diaper is soiled and the cover needs cleaning. With the insert removed the diaper can be used as a cover over a prefold or fitted cloth diaper.

References used in this section:^{[21][22][23][24][20]}

Cloth Diapering Community[link]

In the North America, an active community has grown around the use of cloth diapers. Websites and listservs facilitate individuals buying and selling cloth diapers, allowing diapers to be re-used even in families with only one child ^[25]. Retail shops that sell cloth diapers often host classes and other community gatherings ^[26].

Debate[link]

An average child will go through several thousand diapers in his/her life.^[27] Since disposable diapers are discarded after a single use, usage of disposable diapers increases the burden on landfill sites, and increased environmental awareness has led to a growth in campaigns for parents to use reusable alternatives such as cloth or hybrid diapers.^[28] An estimated 27.4 billion disposable diapers are used each year in the US, resulting in a possible 3.4 million tons of used diapers adding to landfills each year.^[29] It is possible, however, to buy disposable diapers with a low environmental impact.^[30]

The environmental impact of cloth as compared to disposable diapers has been studied several times. In one cradle-to-grave study sponsored by the National Association of Diaper Services (NADS) and conducted by Carl Lehrburger and colleagues, results found that disposable diapers produce seven times more solid waste when discarded and three times more waste in the manufacturing process. In addition, effluents from the plastic, pulp, and paper industries are far more hazardous than those from the cotton-growing and -manufacturing processes. Single-use diapers consume less water than reusables laundered at home, but more than those sent to a commercial diaper service. Washing cloth diapers at home uses 50 to 70 gallons of water every three days, which is roughly equivalent to flushing the toilet 15 times a day, unless the user has a high-efficiency washing machine. An average diaper service puts its diapers through an average of 13 water changes, but uses less water and energy per diaper than one laundry load at home.^[31]

In October 2008, "An updated lifecycle assessment study for disposable and reusable nappies" by the UK Environment Agency and Department for Environment, Food and Rural Affairs stated that reusable diapers can cause significantly less (up to 40 per cent) or significantly more damage to the environment than disposable ones, depending mostly on how parents wash and dry them. The "baseline scenario" showed that the difference in green-house emissions was insignificant (in fact, disposables even scored slightly better). However, much better results (emission cuts of up to 40 per cent) could be achieved by using reusable diapers more rationally. "The report shows that, in contrast to the use of disposable nappies, it is consumers’ behaviour after purchase that determines most of the impacts from reusable nappies. Cloth nappy users can reduce their environmental impacts by:

• Line drying outside whenever possible
• Tumble drying as little as possible
• When replacing appliances, choosing more energy efficient appliances (A+ rated machines [according to the EU environmental rating] are preferred)
• Not washing above 60 °C (140 °F)
• Washing fuller loads
• Reusing nappies on other children.^[32]

There are variations in the care of cloth diapers that can account for different measures of environmental impact. For example, using a cloth diaper laundering service involves additional pollution from the vehicle that picks up and drops off deliveries. Yet such a service uses less water per diaper in the laundering process.^[33] Some people who launder cloth diapers at home wash each load twice, considering the first wash a "prewash", and thus doubling the energy and water usage from laundering. Cloth diapers are most commonly made of cotton, which is generally considered an environmentally wasteful crop to grow. "Conventional cotton is one of the most chemically-dependent crops, sucking up 10% of all agricultural chemicals and 25% of insecticides on 3% of our arable land; that's more than any other crop per unit."^[34] This effect can be mitigated by using other materials, such as bamboo and hemp.

Another aspect to consider when choosing between disposable diapers and cloth diapers is cost. It is estimated that an average baby will use from $1,500 to $2,000 or more in disposable diapers before being potty-trained.^[35] In contrast, cloth diapers, while initially more expensive than disposables, cost as low as $300 for a basic set of cloth diapers, although costs can rise with more expensive options.^[36][37] The cost of washing and drying diapers must also be considered. The basic set, if one-sized, can last from birth to potty-training.

Another factor in reusable cloth diaper impact is the ability to re-use the diapers for subsequent children, sale of used diapers through diaperswappers.com [2], craigslist [3] or other online communities, donation of used diapers through recycling groups such as freecycle [4] or to charities such as miraclediapers.org [5]. Many reusable diaper users take advantage of these resources and may even join communities like livejournal's clothdiapering [6] in order to find ways to make their diaper-washing routine more efficient or get feedback about different types of reusable diapers. These factors can alleviate the environmental and financial impact from manufacture, sale and use of brand-new reusable diapers.

Usage[link]

Children[link]

Babies may need to have their diapers changed five or more times a day.^[38] Diapering can also serve as a good bonding experience for parent and child.^[39] To avoid skin irritation, commonly referred to as diaper rash, the diaper of those prone to it should be changed as soon as possible after it is soiled (especially by fecal matter), as feces contain urease which catalyzes the conversion of the urea in urine to ammonia which irritates the skin and can cause painful redness.^[40]

The age at which toilet training should begin is a subject of debate and keeping children in diapers beyond infancy can be controversial, with family psychologist John Rosemond claiming it is a "slap to the intelligence of a human being that one would allow baby to continue soiling and wetting himself past age two."^[41] Pediatrician T. Berry Brazelton, however, believes that toilet training is the child's choice and has encouraged this view in various commercials for Pampers Size 6, a diaper for older children.^[41] Brazelton warns that enforced toilet training can cause serious longterm problems, and that it is the child's decision when to stop wearing diapers, not the parents'.^[41][42]

Children may have problems with daytime or more often nocturnal bladder control, until eight years or older, and need to wear diapers at nighttime to control bedwetting.^[43] While awake, most children no longer need diapers when past two to four years of age, depending on culture, diaper type, parental habits, and the child's personality.^[44] However, it is becoming increasingly common for children as old as five to still be wearing diapers because of their parents' neglect or the child's opposition to toilet training. This can pose a number of problems if the child is sent to school wearing diapers, including teasing from classmates and health issues resulting from dirty diapers. Teachers' groups—who are attributing the epidemic to an increase in full-time day care use—are requesting that diapered children be banned from the classroom. The disposable diaper industry has been accused of encouraging this trend by manufacturing diapers in increasingly larger sizes. "[S]uper-comfortable nappies" have also been criticized; the advanced technology in modern diapers wick wetness away from skin, leaving the child oblivious to their accident and when they need to go to the toilet. Paediatric nurse June Rogers claims that the attitude of parents plays a major role in the problem, and that toilet training is simply not a priority for many of them.^[45][46][47]

Parents and other primary child care givers often carry spare diapers and necessities for diaper changing in a diaper bag.

Training pants / pull-ups[link]

Manufacturers have designed "training pants" which bridge the gap between baby diapers and normal underwear during the toilet training process. These training pants are similar to infant diapers other than they require no fastening as they 'pull-up' like normal underwear. Larger versions are available for older children and teenagers who have already been toilet trained but continue to experience bedwetting. Available in both cloth and disposable versions, they are constructed like a diaper with an absorbent core and a waterproof shell. Whereas most diapers are unisex, training pants often come in sex-specific versions because children become more aware of gender roles as they grow older.^[48]

With the development of training pants and pediatricians such as Brazelton claiming that forced toilet training can cause lasting psychological and health problems, children are wearing diapers at a much older age than they did historically.^[41] The Children's Health and Wellness website claims that diapering a child can prolong bedwetting, as it sends a "message of permission" to urinate in their sleep.^[49] Dr Anthony Page of the Creative Child Online Magazine claims that children can get used to their diapers and begin to view them as a comfort, and that of the children surveyed, most would rather wear diapers than worry about getting up at night to go to the toilet.^[50] In a series of online surveys, Robert A Pretlow, MD, of eHealth International, Inc., cites an identical figure. He argues that if Internet users are representative of society as a whole, these surveys imply that a fetishistic or emotional attraction to diapers may be responsible for these "comfort" cases, and that "these behaviors are a significant cause of enuresis and incontinence." He called for further studies to be done on the topic.^[51]

Adults[link]

A bag of Abena adult diapers

Although most commonly worn by and associated with babies and children, diapers are also worn by adults for a variety of reasons. In the medical community, they are usually referred to as "adult absorbent briefs" rather than diapers, which are associated with children and may have a negative connotation. The usage of adult diapers can be a source of embarrassment,^[52] and products are often marketed under euphemisms such as incontinence pads. The most common adult users of diapers are those with medical conditions which cause them to experience urinary or fecal incontinence, or those who are bedridden or otherwise limited in their mobility.

Animals[link]

Diapers and diaperlike products are sometimes used on pets, laboratory animals, or working animals. This is often due to the animal not being housebroken, or for older, sick, or injured pets who have become incontinent. In some cases, these are simply baby diapers with holes cut for the tails to fit through. In other cases, they are diaperlike waste collection devices.

The diapers used on primates, canines, etc. are much like the diapers used by humans. The diapers used on equines are intended to catch excretions, as opposed to absorbing them.

In 2002, the Vienna city council proposed that horses be made to wear diapers to prevent them from defecating in the street. This caused controversy amongst animal rights groups, who claimed that wearing diapers would be uncomfortable for the animals. The campaigners protested by lining the streets wearing diapers themselves, which spelled out the message "Stop pooh bags".^[53] In the Kenyan town of Limuru, donkeys were also diapered at the council's behest.^[54] A similar scheme in Blackpool ordered that horses be fitted with rubber and plastic diapers to stop them littering the promenade with dung. The council consulted the RSPCA to ensure that the diapers were not harmful to the horses' welfare.^[55][56][57]

Other animals that are sometimes diapered include female dogs when ovulating and thus bleeding, and monkeys and apes; most are physically unable to control their excretions, which is not a convenient situation for tree-dwelling animals. Diapers are often seen on trained animals who appear on TV shows, in movies, or for live entertainment or educational appearances.

See also[link]

	Fashion portal
	Medicine portal

Look up Diaper in Wiktionary, the free dictionary.

Wikimedia Commons has media related to: Diaper

• Changing table
• Diaper bag
• Swim diaper

References[link]

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