|
Hair Spray
Hair spray (also hair lacquer or spritz) is a common cosmetic hairstyling product that is sprayed onto hair to protect against humidity and wind. Hair sprays typically consist of several components for the hair as well as a propellant. Ingredients and operation Hair sprays consist of the following components: concentrate, plasticizers, luster agents, and fragrances, as well as propellants. Concentrate Hair spray are a blend of polymers that provide structural support to hair. These frequently include copolymers of polyvinylpyrrolidone (PVP) and polyvinyl acetate (PVAc). Vinyl acetate- crotonic acid copolymers give harder films. In this way hairsprays can be formulated as flexible, medium, and maximum hold. The copolymer mixture is usually adjusted to achieve the desired physical properties (adhesive strength, foaming, etc.), using plasticizers such as aminomethyl propanol, surfactants such as benzalkonium chloride, and other agents like dimethicone. Propellants Since t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hairspray
Hairspray may refer to: * Hair spray, a personal grooming product that keeps hair protected from humidity and wind * ''Hairspray'' (1988 film), a film by John Waters ** ''Hairspray'' (1988 soundtrack), the film's soundtrack album ** ''Hairspray'' (musical), a stage musical based on the original film *** ''Hairspray'' (2002 album), the musical's cast album *** ''Hairspray Live! ''Hairspray Live!'' is an American television special that aired live on the American television network NBC on December 7, 2016. Produced by Craig Zadan and Neil Meron, and hosted by Darren Criss, it is a performance of a new adaptation of the 2 ...'', a live television musical version of the stage musical *** ''Hairspray'' (2007 film), a film based on the musical **** ''Hairspray'' (2007 soundtrack), the film's soundtrack album * '' Hairspray: The School Musical'', a UK reality TV series * '' Pucker!'', a 1995 album by The Selecter released in the US as ''Hairspray'' {{Disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Citric Acid
Citric acid is an organic compound with the chemical formula HOC(CO2H)(CH2CO2H)2. It is a colorless weak organic acid. It occurs naturally in citrus fruits. In biochemistry, it is an intermediate in the citric acid cycle, which occurs in the metabolism of all aerobic organisms. More than two million tons of citric acid are manufactured every year. It is used widely as an acidifier, as a flavoring, and a chelating agent. A citrate is a derivative of citric acid; that is, the salts, esters, and the polyatomic anion found in solution. An example of the former, a salt is trisodium citrate; an ester is triethyl citrate. When part of a salt, the formula of the citrate anion is written as or . Natural occurrence and industrial production Citric acid occurs in a variety of fruits and vegetables, most notably citrus fruits. Lemons and limes have particularly high concentrations of the acid; it can constitute as much as 8% of the dry weight of these fruits (about 47 g/ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hair Care Products
Hair is a protein filament that grows from follicles found in the dermis. Hair is one of the defining characteristics of mammals. The human body, apart from areas of glabrous skin, is covered in follicles which produce thick terminal and fine vellus hair. Most common interest in hair is focused on hair growth, hair types, and hair care, but hair is also an important biomaterial primarily composed of protein, notably alpha-keratin. Attitudes towards different forms of hair, such as hairstyles and hair removal, vary widely across different cultures and historical periods, but it is often used to indicate a person's personal beliefs or social position, such as their age, sex, or religion. Overview The word "hair" usually refers to two distinct structures: #the part beneath the skin, called the hair follicle, or, when pulled from the skin, the bulb or root. This organ is located in the dermis and maintains stem cells, which not only re-grow the hair after it falls out, but al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extremophile
An extremophile (from Latin ' meaning "extreme" and Greek ' () meaning "love") is an organism that is able to live (or in some cases thrive) in extreme environments, i.e. environments that make survival challenging such as due to extreme temperature, radiation, salinity, or pH level. These organisms are ecologically dominant in the evolutionary history of the planet. Some spores and cocooned bacteria samples have been dormant for more than 40 million years, extremophiles have continued to thrive in the most extreme conditions, making them one of the most abundant lifeforms. Characteristics In the 1980s and 1990s, biologists found that microbial life has great flexibility for surviving in extreme environments—niches that are acidic, extraordinarily hot or within irregular air pressure for example—that would be completely inhospitable to complex organisms. Some scientists even concluded that life may have begun on Earth in hydrothermal vents far under the ocean's sur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microbacterium Hatanonis
''Microbacterium hatanonis'' is a bacterium of the family '' Microbacteriaceae''. The type strain was discovered living in hair spray. ''M. hatanonis'' was selected as one of "The Top 10 New Species" described in 2008 by The International Institute for Species Exploration at Arizona State University and an international committee of taxonomists In biology, taxonomy () is the scientific study of naming, defining ( circumscribing) and classifying groups of biological organisms based on shared characteristics. Organisms are grouped into taxa (singular: taxon) and these groups are given .... Etymology Named in honor of Dr. Kazunori Hatano, "for his contribution to the understanding of the genus ''Microbacterium''." References External links Arizona State University - International Institute for Species Exploration [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copolymer
In polymer chemistry, a copolymer is a polymer derived from more than one species of monomer. The polymerization of monomers into copolymers is called copolymerization. Copolymers obtained from the copolymerization of two monomer species are sometimes called ''bipolymers''. Those obtained from three and four monomers are called ''terpolymers'' and ''quaterpolymers'', respectively. Copolymers can be characterized by a variety of techniques such as NMR spectroscopy and size-exclusion chromatography to determine the molecular size, weight, properties, and composition of the material. Commercial copolymers include acrylonitrile butadiene styrene (ABS), styrene/butadiene co-polymer (SBR), nitrile rubber, styrene-acrylonitrile, styrene-isoprene-styrene (SIS) and ethylene-vinyl acetate, all of which are formed by chain-growth polymerization. Another production mechanism is step-growth polymerization, which is used to produce the nylon-12/6/66 copolymer of nylon 12, nylon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chlorofluorocarbon
Chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) are fully or partly halogenated hydrocarbons that contain carbon (C), hydrogen (H), chlorine (Cl), and fluorine (F), produced as volatile derivatives of methane, ethane, and propane. They are also commonly known by the DuPont brand name Freon. The most common representative is dichlorodifluoromethane (R-12 or Freon-12). Many CFCs have been widely used as refrigerants, propellants (in aerosol applications), and solvents. Because CFCs contribute to ozone depletion in the upper atmosphere, the manufacture of such compounds has been phased out under the Montreal Protocol, and they are being replaced with other products such as hydrofluorocarbons (HFCs) including R-410A and R-134a. Structure, properties and production As in simpler alkanes, carbon in the CFCs bond with tetrahedral symmetry. Because the fluorine and chlorine atoms differ greatly in size and effective charge from hydrogen and from each other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glam Metal
Glam metal (also known as hair metal or pop metal) is a subgenre of heavy metal that features pop-influenced hooks and guitar riffs, upbeat rock anthems, and slow power ballads. It borrows heavily from the fashion and image of 1970s glam rock. Early glam metal evolved directly from the glam rock movement of the 1970s, as visual elements taken from acts such as T. Rex, the New York Dolls, and David Bowie (and to a lesser extent, the punk and new wave movements taking place concurrently in New York City) were fused with the decidedly more heavy metal leaning and theatrical acts such as Alice Cooper and Kiss. The first examples of this fusion began appearing in the late 1970s and early 1980s in the United States, particularly on the Los Angeles Sunset Strip music scene. Early glam metal bands include Mötley Crüe, Hanoi Rocks, Ratt, Quiet Riot, Twisted Sister, Bon Jovi, and Dokken. Glam metal achieved significant commercial success from approximately 1983 to 1992, bri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Femininity
Femininity (also called womanliness) is a set of attributes, behaviors, and roles generally associated with women and girls. Femininity can be understood as socially constructed, and there is also some evidence that some behaviors considered feminine are influenced by both cultural factors and biological factors. To what extent femininity is biologically or socially influenced is subject to debate. It is conceptually distinct from both the female biological sex and from womanhood, as all humans can exhibit feminine and masculine traits, regardless of sex and gender. Traits traditionally cited as feminine include gracefulness, gentleness, empathy, humility, and sensitivity, though traits associated with femininity vary across societies and individuals, and are influenced by a variety of social and cultural factors. Overview and history Despite the terms ''femininity'' and ''masculinity'' being in common usage, there is little scientific agreement about what femininity a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miss America Protest
The Miss America protest was a demonstration held at the Miss America 1969 contest on September 7, 1968, attended by about 200 feminists and civil rights advocates. The feminist protest was organized by New York Radical Women and included putting symbolic feminine products into a "Freedom Trash Can" on the Atlantic City boardwalk, including bras, hairspray, makeup, girdles, corsets, false eyelashes, mops, and other items. The protesters also unfurled a large banner emblazoned with " Women's Liberation" inside the contest hall, drawing worldwide media attention to the Women's Liberation Movement. Reporter Lindsy Van Gelder drew an analogy between the feminist protesters throwing bras in the trash cans and Vietnam War protesters who burned their draft cards. The bra-burning trope was permanently attached to the event and became a catch-phrase of the feminist era. Origins The New York Radical Women was a group of women that had been active in the civil rights movement, the New ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Updo
A hairstyle, hairdo, haircut or coiffure refers to the styling of hair, usually on the human scalp. Sometimes, this could also mean an editing of facial or body hair. The fashioning of hair can be considered an aspect of personal grooming, fashion, and cosmetics, although practical, cultural, and popular considerations also influence some hairstyles. The oldest known depiction of hair styling is hair braiding which dates back about 30,000 years. In history, women's hair was often elaborately and carefully dressed in special ways, though it was also often kept covered outside the home, especially for married women. From the time of the Roman Empire until the Middle Ages, most women grew their hair as long as it would naturally grow. Between the late 15th century and the 16th century, a very high hairline on the forehead was considered attractive. Around the same period, European men often wore their hair cropped no longer than shoulder-length. In the early 17th century, mal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aerosol Spray
Aerosol spray is a type of dispensing system which creates an aerosol mist of liquid particles. It comprises a can or bottle that contains a payload, and a propellant under pressure. When the container's valve is opened, the payload is forced out of a small opening and emerges as an aerosol or mist. History The concepts of aerosol probably go as far back as 1790.Bellis, MarThe History of Aerosol Spray Cans/ref> The first aerosol spray can patent was granted in Oslo in 1927 to Erik Rotheim, a Norwegian chemical engineer,Norwegian Patent No. 46613, issued on November 23, 1926 and a United States patent was granted for the invention in 1931. — Method and Means for the Atomizing or Distribution of Liquid or Semiliquid Materials, issued April 7, 1931 The patent rights were sold to a United States company for 100,000 Norwegian kroner. The Norwegian Postal Service, Posten Norge, celebrated the invention by issuing a stamp in 1998. In 1939, American Julian S. Kahn received a pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Extremophile")
