WordNet

a fabric that has been chemically processed to resist wrinkles and hold its shape (同)durable_press
place between two surfaces and apply weight or pressure; "pressed flowers"
any machine that exerts pressure to form or shape or cut materials or extract liquids or compress solids (同)mechanical press
a weightlift in which the barbell is lifted to shoulder height and then smoothly lifted overhead (同)military press
the act of pressing; the exertion of pressure; "he gave the button a press"; "he used pressure to stop the bleeding"; "at the pressing of a button" (同)pressure, pressing
a machine used for printing (同)printing_press
clamp to prevent wooden rackets from warping when not in use
the print media responsible for gathering and publishing news in the form of newspapers or magazines (同)public press
press from a plastic; "press a record" (同)press_out
make strenuous pushing movements during birth to expel the baby; "`Now push hard, said the doctor to the woman" (同)push
be urgent; "This is a pressing problem"
create by pressing; "Press little holes into the soft clay"
crowd closely; "The crowds pressed along the street"
exert pressure or force to or upon; "He pressed down on the boards"; "press your thumb on this spot"
not capable of being reversed or returned to the original condition; "permanent brain damage"
continuing or enduring without marked change in status or condition or place; "permanent secretary to the president"; "permanent address"; "literature of permanent value" (同)lasting
compelling immediate action; "too pressing to permit of longer delay"; "the urgent words `Hurry! Hurry!"; "bridges in urgent need of repair" (同)urgent
a metal or plastic part that is made by a mechanical press
compacted by ironing

PrepTutorEJDIC

(力・重量をかけて)…‘を'『押す,圧する』 / (…から)〈果汁・油など〉‘を'しぼり出す《+『名』+『from』(『out of』)+『名』》 / 〈服など〉‘に'アイロンをかける(iron) / (親愛・共感の表現として)…‘を'抱き締める,握り締める / (人をかきわけて)〈道〉‘を'押し進む / 《しばしば受動態で》…‘を'圧迫する,苦しめる(harass) / (人に)〈物事〉‘を'無理に押しつける,強要する《+『名』+『on』(『upon』)+『名』〈人〉》 / (物事を)〈人〉‘に'無理に押しつける,迫る,強要する / (…を)『押す,圧する』《+『on』(『upon, against』)+『名』》 / 《副詞を伴って》〈衣服が〉アイロンがかかる / 押し進む,突き進む;〈群衆などが〉押し寄せる,殺到する / 〈時間が〉切迫している;《話》〈物事が〉急を要する / (…を)しつこくせがむ,せきたてる《+『for』+『名』》 / 《a~》『押すこと』,『圧迫』;握り締めること / 〈C〉圧搾(縮),締め具,(果汁の)しぼり機 / 〈C〉《通例P-》印刷所,発行所 / 〈U〉印刷 / 《the~》(新聞・雑誌・ラジオ・テレビなどの)報道機関,言論界;《集合的に》報道陣,新聞(雑誌)記者 / 〈C〉《単数形で》(新聞での)論評,取り上げ方 / 〈U〉(押し合う)雑踏,人だかり,群衆 / 〈U〉(事態・仕事などの)切迫していること,火急,急迫 / 〈C〉《話》アイロンをかけること
〈他〉強制徴兵する
『永久の』不変の / 常設の,常置の / =permanent wave
緊急の,差し迫った / (人・頼みなど)たっての,熱心な / (原盤よりプレスして作られた)レコード
(食品が)プレス加工の / 《補語にのみ用いて》(…に)追われた,切迫して《+『for』+『名』》

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/01/24 01:50:51」(JST)

wiki en

A permanent press is a characteristic of fabric that has been chemically processed to resist wrinkles and hold its shape. Alternative terms include wrinkle resistant, wash and wear, no-iron, durable press, and easy care. This treatment has a lasting effect on the fabric.^[1]

Chemistry

The crosslinking agents that result in the permanent press finish are often derivatives of urea. Popular crosslinkers include DMDHEU (dimethylol dihydroxyethyleneurea) and DMEU (dimethylol ethylene urea).^[2]

The permanent press effect arises from crosslinking of molecules of cellulose by chemical agents such as DMDHEU.

History

Advances in producing permanent press fabrics involved a series of agents that crosslink the cellulose-based fibers that comprise most clothing. Initial agents included formaldehyde. Starting in the 1940s a series of urea-formaldehyde derivatives were introduced. Technical issues overcome included yellowing, odor, and the tendency of some agents to accelerate the degradation of fabrics by bleaches.^[3]^[4] In 1953, Brooks Brothers manufactured wash-and-wear shirts using a blend of Dacron, polyester, and a wrinkle free cotton that was invented by Ruth R. Benerito, which they called "Brooksweave".

The technology advanced especially rapidly in the early 1990s.^[5]^[6]

In older washing machines, the permanent press setting sprays moisture during the spin cycle to maintain the moisture content of the permanent press fabrics above a certain specified limit to reduce wrinkling.^[7] Most older clothes dryers feature an automatic permanent press setting, which puts clothes through a cool-down cycle at the end of the normal heated drying cycle. Modern dryers tend to include this as a standard feature.

References

^ http://query.nytimes.com/gst/fullpage.html?res=9F0CE0DB103FF93AA15751C1A965958260&sec=&spon=&pagewanted=print
^ Klaus Fischer et al. "Textile Auxiliaries" in Ullmann's Encyclopedia of Industrial Chemistry 2002, Wiley-VCH, Weinheim. doi:10.1002/14356007.a26_227
^ http://www.usatoday.com/tech/columnist/andrewkantor/2004-12-31-kantor_x.htm
^ The development of DMDHEU is described in this news report: http://chemistry.about.com/od/howthingsworkfaqs/f/clotheswrinkle.htm
^ http://query.nytimes.com/gst/fullpage.html?res=9F0CE0DB103FF93AA15751C1A965958260&sec=&spon=&pagewanted=print
^ http://www.iht.com/articles/1995/02/20/syncon.php
^ http://www.freepatentsonline.com/4000968.html

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