[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.evus.cz\/jak-je-to-s-vyplnemi-sedacich-vaku\/#Article","mainEntityOfPage":"https:\/\/www.evus.cz\/jak-je-to-s-vyplnemi-sedacich-vaku\/","headline":"Jak je to s v\u00fdpln\u011bmi sedac\u00edch vak\u016f","name":"Jak je to s v\u00fdpln\u011bmi sedac\u00edch vak\u016f","description":"Kdy\u017e se za\u010daly vyr\u00e1b\u011bt prvn\u00ed sedac\u00ed pytle a vaky, neexistoval \u017e\u00e1dn\u00fd polystyren, z n\u011bho\u017e by se mohly vyrobit v\u00fdpl\u0148ov\u00e9 kuli\u010dky. Tehdy byly k dispozici jen p\u0159\u00edrodn\u00ed materi\u00e1ly, a tak do nich lid\u00e9 vkl\u00e1dali r\u00fd\u017ei, pohankov\u00e9 slupky, fazole, zrnka p\u0161enice, zkr\u00e1tka co bylo zrovna k dispozici. Sv\u016fj \u00fa\u010del to do jist\u00e9 m\u00edry splnilo, ov\u0161em m\u011blo to […]","datePublished":"2022-06-30","dateModified":"2023-05-05","author":{"@type":"Person","@id":"https:\/\/www.evus.cz\/author\/#Person","name":"evus.cz\n","url":"https:\/\/www.evus.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/087c2e57f451bc02fa8017914855d7c40cf6c7d5dc1637b868e007adc26322d1?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/087c2e57f451bc02fa8017914855d7c40cf6c7d5dc1637b868e007adc26322d1?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"evus.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.evus.cz\/wp-content\/uploads\/bag-21493_640_9.jpg","url":"https:\/\/www.evus.cz\/wp-content\/uploads\/bag-21493_640_9.jpg","height":0,"width":0},"url":"https:\/\/www.evus.cz\/jak-je-to-s-vyplnemi-sedacich-vaku\/","about":["V\u00fdrobky"],"wordCount":391,"articleBody":"Kdy\u017e se za\u010daly vyr\u00e1b\u011bt prvn\u00ed sedac\u00ed pytle a vaky, neexistoval \u017e\u00e1dn\u00fd polystyren, z n\u011bho\u017e by se mohly vyrobit v\u00fdpl\u0148ov\u00e9 kuli\u010dky. Tehdy byly k dispozici jen p\u0159\u00edrodn\u00ed materi\u00e1ly, a tak do nich lid\u00e9 vkl\u00e1dali r\u00fd\u017ei, pohankov\u00e9 slupky, fazole, zrnka p\u0161enice, zkr\u00e1tka co bylo zrovna k dispozici. Sv\u016fj \u00fa\u010del to do jist\u00e9 m\u00edry splnilo, ov\u0161em m\u011blo to dv\u011b podstatn\u00e9 nev\u00fdhody. Za prv\u00e9 – flexibilita posezen\u00ed nebyla takov\u00e1, \u017ee by \u0161lo o dokonal\u00e9 pohodl\u00ed, a za druh\u00e9 byly pytle natolik t\u011b\u017ek\u00e9, \u017ee s nimi bylo obt\u00ed\u017en\u00e9 manipulovat a p\u0159en\u00e1\u0161et je z m\u00edsta na m\u00edsto.S objevem polystyrenu do\u0161lo k p\u0159evratn\u00fdm zm\u011bn\u00e1m v konstrukci vak\u016f, proto\u017ee polystyren je velice lehk\u00fd. Zpo\u010d\u00e1tku se ale vaky plnily od\u0159ezky p\u011bnov\u00e9 polystyrenov\u00e9 hmoty, nap\u0159. stavebn\u00edm polystyrenem, tedy ne\u0161lo o rovnom\u011brn\u00e9 kulat\u00e9 \u00fatvary, tak\u017ee tehdej\u0161\u00ed vaky byly sice lehou\u010dk\u00e9, ale op\u011bt nebyla flexibilita posezen\u00ed takov\u00e1, \u017ee by se dalo hovo\u0159it o n\u011bjak\u00e9m komfortu.Z\u00e1sadn\u00ed obrat nastal a\u017e v okam\u017eiku, kdy se na trhu objevily prvn\u00ed polystyrenov\u00e9 kuli\u010dky (EPS). Jde o shodnou technologii v\u00fdroby, co se t\u00fd\u010de produkce p\u011bnov\u00e9ho polystyrenu, ale podstatn\u00e9 je, \u017ee kuli\u010dky maj\u00ed shodnou velikost i hmotnost. Jsou pom\u011brn\u011b pevn\u00e9 a snesou i vy\u0161\u0161\u00ed z\u00e1t\u011b\u017e, pokud se na sedac\u00ed vak posad\u00ed ob\u00e9zn\u00ed \u010dlov\u011bk. D\u00edky rozm\u011brov\u00e9, hmotnostn\u00ed a tvarov\u00e9 jednotnosti kuli\u010dek je kone\u010dn\u011b v\u00fdpl\u0148 dostate\u010dn\u011b flexibiln\u00ed a lehk\u00e1, tak\u017ee i relativn\u011b velk\u00fd vak snadno popadnete do jedn\u00e9 ruky a p\u0159enesete, kam se v\u00e1m zachce. Polystyrenov\u00e9 kuli\u010dky by nem\u011bly obsahovat zpomalova\u010de ho\u0159en\u00ed a \u017e\u00e1dn\u00e9 dal\u0161\u00ed toxick\u00e9 p\u0159\u00edsady, kter\u00e9 b\u00fdvaly typick\u00e9 nap\u0159. pro stavebn\u00ed polystyren, i kdy\u017e se dnes od t\u011bchto l\u00e1tek ustupuje i v t\u00e9to bran\u017ei. V\u00fdrobce i prodejce t\u011bchto v\u00fdpln\u00ed sedac\u00edch vak\u016f pro d\u011bti by v\u00e1m m\u011bl b\u00fdt schopn\u00fd p\u0159edlo\u017eit pat\u0159i\u010dn\u00e9 certifik\u00e1ty a normy, podle kter\u00fdch jsou tyto v\u00fdrobky schv\u00e1len\u00e9 pro ka\u017edodenn\u00ed vyu\u017e\u00edv\u00e1n\u00ed, a to i pro alergiky a mal\u00e9 d\u011bti \u010di chronicky nemocn\u00e9 seniory.                                                                                                                                                                                                                                                                                                                                                                                         4.4\/5 - (10 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Jak je to s v\u00fdpln\u011bmi sedac\u00edch vak\u016f","item":"https:\/\/www.evus.cz\/jak-je-to-s-vyplnemi-sedacich-vaku\/#breadcrumbitem"}]}]