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and currently in the fermentation of biomass for biofuel production. Cellulase is produced primarily by fungi, bacteria and protozoans that catalyze the hydrolysis of cellulose. Various fungi have varying effects on the look of the denim that is being modified. Since the enzyme decomposes cellulose fibers this enhanced the characteristic appearance that the jeans have been abraded with stones (and eliminated or considerably reduced the usage of natural pumice stones). The use of biostoning allows for the selective loosening of dye particles from jeans. Buttons and other seams are less likely to be affected when biostoning is at play. Selecting the most suitable type of enzyme and their application for ageing jeans was the key to success. Along with the type of enzyme, the temperature at which the biostoning process occurs is also important. If temperatures are too low, the process proves to be less efficient. Similarly, if the biostoning process occurs in temperatures that are too warm, the denim can appear to be too faded. American
Garment Finishers used a new cellulolytic agent patented in 1991 by
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alternative abrading materials or machines and the use of cellulase enzymes. Pumice stones also encountered a shortage, as the popularity of the stones increased, leading to other stone washing methods being invented. The use of pumice stones also made the stone washing process harder to control, contributing to the method's decline. Too much of this pumice stone could damage the buttons or waistbands on jeans. Stonewashed jeans were a popular 1970s fashion trend, before commercial acid wash denim (discussed below) was introduced in the 1980s. In the 2000s, stonewashed jeans were heavily distressed, with pre-made holes, frayed edges and extensive fading caused by
73:. Although stone washing increases a fabric's flexibility, it shortens the life-span of the jeans. The process of stone washing can be costly, as freshly stone washed jeans must be washed many times in order to remove the grit from the process. Along with high production costs, stone washing can be detrimental to the environment, due to the excess grit that is removed as fabric is being stone washed. This leads many manufacturers to pursue other methods to achieve a distressed appearance.
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that is also filled with large stones. As the wash cylinder rotates, the cloth fibers are repeatedly pounded and beaten as the tumbling stones ride up the paddles inside the drum and fall back down onto the fabric. The frequency of tumble washes impacts the fabrics strength and rubbing fastness. As
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Claude
Blankiet with American Garment Finishers from Texas promoted the use of cellulase enzymes in the finishing industry. The use of cellulase enzymes to modify the appearance of jeans is commonly referred to as "biostoning." Cellulase was already used in the paper pulp, food processing industry
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instead of bleach, achieving a more natural abraded look that is far less damaging to the cotton fibers. Other abrading materials such as marble sand or expanded glass foam were also used as an alternative to pumice stone (see stone-wash). Specific areas of the jeans, shirts and jackets were also
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jeans company in
February 1986. They accidentally tumbled jeans and pumice stones wetted with a weak solution of bleach in a washing machine without water. American Garment Finishers (AGF) from Texas industrialized the process in North America in June 1986 and offered it to Levi Strauss. Shortly
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from
Denmark because of its safer effect on cotton fiber. Other finishers used an acid side Trichoderma fungi enzyme, cheaper and faster acting, but resulting in excessive fabric tear and a back lash because jeans pockets were lifting off. The cellulase enzyme that is used to biostone jeans was
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and other jeans that had been bleached by the salt water due to their authentic, "lived in" appearance. As natural wear took weeks, or even months, it was not uncommon to hang a few new pairs of jeans to fade in the sun, then turn them over to fade the other side. For many surfers, this process
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led to extensive mining of pumice deposits in
California, Arizona, and New Mexico, triggering a negative response from American ecologist groups. The reduction of pumice usage and the growing disposal of its chemically-tainted residue triggered a search for novel methods, notably the use of
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Publication number WO1991010732 A1 Application number PCT/DK1991/000013 Publication date Jul 25, 1991 Also published as CA2074084A1, 5 More » Inventors
Christian Hansen, Per Linaa Joergensen, Martin Schuelein Applicant Novo Nordisk
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the fabric is washed in a washer repeatedly, the rubbing speed increases, and the strength of the fabric decreases. Longer wash times, coupled with frequent wash cycles, heightens the distressed look that stone washing aims to provide.
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in a rotating drum, or by using chemicals to create the appearance without the use of a rotating drum. Pumice stones act as sandpaper on jeans, removing some of the dyes present. The expanding cost of importing pumice stone from
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225:. This early faded look, known as snow wash, tended to retain the original dark blue dye around the seams and waistband. One of the first companies to sell "pre washed" jeans (as they were then called), was
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acid-washed by spraying a solution of bleach or potassium permanganate to simulate a wear pattern. Extremely popular worldwide from 1986 to the mid nineties, it is still used by fashion designers today.
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process used to give a newly manufactured cloth garment a worn appearance. The process became popular in the 1980s, as acid jeans gained popularity; however, stone washing has roots going back to 1960s
233:, however, the faded effect was copied by many individuals not associated with the subculture, who dipped their jeans in diluted bleach and embellished them with metal studs, embroidery and
92:(later acquired by Levi's), invented "stone-washing" denim in the 1950s. Inventor Claude Blankiet has also been credited with having invented the technique in the 1970s. The jeans company
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favored frayed "destroyed denim," and jeans that had been bleached almost white. Snow washed jeans, which retained more of the original blue dye, remained popular among
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Barmash, Isadore. "BUSINESS TECHNOLOGY: ADVANCES; Acid Wash Gives a Lift To 7th Avenue." New York Times 21 Oct. 1987. Infotrac
Newsstand. Web. 19 Aug. 2013
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Ghioto, Gary. 2000. "Mining the Sacred
Mountains." E: The Environmental Magazine 11, no. 1: 15. MasterFILE Complete, EBSCOhost (accessed August 8, 2013)
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are inventors of industrialization of stone washing ("Stonewash" technique). However, the process of stone washing was patented by jean company
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Zimmerman, Keith. "Cellulase enzymes won't leave your laundry washed up." Bobbin Dec. 1993: 62+. General OneFile. Web. 9 Aug. 2013
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Hattam, Jennifer. 1999. "Sacred, Not
Stonewashed." Sierra 84, no. 4: 70. MasterFILE Complete, EBSCOhost (accessed August 9, 2013)
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The process uses large stones to roughen up the fabric being processed. The garments are placed in a large horizontal industrial
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McNamara, Michael. "Burlington's new stonewash denim skips stones". WWD 12 Jan. 1994: 35. General OneFile. Web. 9 Aug. 2013
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that have been treated to produce a faded, worn appearance. This is usually accomplished either by washing the jeans with
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simply took too long, so they sped up the process by soaking the jeans in diluted bleach and some beach sand. Simple
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Qazi, Javed & Jabeen, Faiza. (2009). Biostoning potential of
Bacillus cereus cellulases at higher temperatures.
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65:. Stone washing also helps to increase the softness and flexibility of otherwise stiff and rigid fabrics such as
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fans during the mid 1990s, until they were eventually supplanted by darker shades of denim associated with
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294:. Acid washed jeans made a comeback in the late 2000s among teenage girls, due to a revival of 1980s and
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stones and chlorine until it is bleached almost white. California surfers and members of the 1960s
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claims to have invented the technique in the 1980s. It is commonly accepted that French stylists
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A number of people and organizations have claimed to have invented stone washing. According to
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Marshall, George (1991). Spirit of '69 - A Skinhead Bible. Dunoon, Scotland: S.T. Publishing.
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2010s acid wash jeans, similar to the aforementioned snow wash, but bleached almost white.
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Luther, Michael. “Industrial Strength Fashion.” Sportswear International May 1990 pg 50
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wearing self-bleached denim vest of the type commonly seen during the early 1980s.
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were used as they are readily available chemicals used in swimming pools.
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428:"Impact of Stone Wash and Acid Wash on the Physical Properties of Denim"
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Snow washed jeans, with dark blue seams fashionable during the 1990s.
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506:"Marithé et François Girbaud: "From Stone To Light" - WGSN Insider"
492:"Le Jean selon Marithé et François Girbaud exposé à Saint-Etienne"
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The modern process of acid washing was patented in Italy by the
528:"How Acid Wash Jeans Became the Look of the 80s"
27:Technique used on apparel for after wash effects
245:afterward, AGF improved the technique by using
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45:wearing stonewash denim associated with
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229:in 1981. Despite its association with
88:, Donald Freeland, an employee of the
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574:""Stone" Washing Jeans: Cellulases"
542:""Stone" Washing Jeans: Cellulases"
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608:"Stone-washing Jeans: Cellulases"
278:bands in the late 1980s. Fans of
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221:for a mottled effect similar to
298:that continued into the 2010s.
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90:Great Western Garment Company
258:Acid wash jeans, worn with
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264:Perfecto motorcycle jacket
98:Marithé + François Girbaud
698:Dress and popular culture
153:isolated from the fungi,
467:"Edwin Europe - History"
205:During the early 1980s,
247:potassium permanganate
86:Levi Strauss & Co.
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201:Mainstream popularity
58:textile manufacturing
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33:
659:Men's fashion reader
612:webphysics.iupui.edu
442:"The Insider's Napa"
266:were popularised by
365:Heavy metal fashion
254:Decline and revival
217:on their jeans and
102:Rifle Jeans Company
767:Textile treatments
670:Fashion technology
494:. 6 December 2016.
155:Trichoderma reesei
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34:Stone-washed jeans
738:Designing clothes
587:Stonewashed jeans
161:Acid-washed jeans
116:Stonewashed jeans
111:Stonewashed jeans
16:(Redirected from
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749:Light wash denim
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176:is washed with
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516:on 2018-03-30.
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272:outlaw country
260:fringe jackets
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219:battle jackets
213:would spatter
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182:counterculture
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166:Early examples
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360:Punk fashion
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171:Acid-washed
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150:Novo Nordisk
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380:Distressing
324:street punk
276:heavy metal
235:rhinestones
709:Jeaneology
617:2023-04-19
477:2011-11-11
452:2011-11-11
386:References
280:glam metal
227:Guess inc.
223:camouflage
268:hard rock
207:skinheads
186:Levi 501s
18:Stonewash
761:Category
375:Droptima
344:See also
49:, 1970s.
262:or the
184:prized
104:in 1986
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284:grunge
215:bleach
178:pumice
137:Turkey
133:Greece
124:pumice
67:canvas
242:Rifle
173:denim
129:Italy
120:jeans
94:Edwin
71:denim
56:is a
682:ISBN
290:and
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209:and
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69:and
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