Beanbag cov rooj zaum, nrog rau lawv cov rooj zaum xis nyob thiab qhov rooj zaum, tau dhau los ua qhov kev xaiv nrov rau kev so hauv tsev. Kev ua tau zoo ntawm lawv cov ntaub ntawv txhawb nqa tseem ceeb - qhov sau - cuam tshuam ncaj qha rau cov neeg siv kev paub. Tam sim no, ua npuas ncauj yas ntim, sawv cev los ntawm EPP (expanded polypropylene) granules, tau maj mam dhau los ua qhov tseem ceeb vim lawv cov phooj ywg ib puag ncig thiab lub cev. Cov khoom siv no, los ntawm cov txheej txheem foaming, tsim kev ywj pheej kaw- cell qauv, muab ob qho tib si kev txhawb nqa thiab qib elasticity, haum rau cov xwm txheej uas yuav tsum tau ua kom haum rau tib neeg lub cev nkhaus.
EPP granules yog lub cev foamed yas, tsim siv supercritical carbon dioxide lossis nitrogen foaming technology. Their interior consists of countless tiny closed-cell structures with uniform density and independent interaction. Cov qauv no muab cov khoom siv ob yam tseem ceeb: kev ua haujlwm siab - nws sai sai rov qab los rau nws cov qauv qub tom qab siab, tiv thaiv kev sib tsoo tom qab siv ntev -; thiab cuam tshuam kev tiv thaiv- kaw- cell qauv disperses siab, txo qhov chaw overload. Tsis tas li ntawd, EPP cov khoom nws tus kheej tsis yog - tshuaj lom thiab tsis muaj ntxhiab, thiab tsis muaj tshuaj lom neeg ua npuas ntxiv thaum lub sijhawm tsim khoom, ua tau raws li cov qauv ib puag ncig. Txawm tias muaj kev sib cuag ntawm daim tawv nqaij ntev lossis kev sib cuag los ntawm cov menyuam yaus, tsis tas yuav txhawj xeeb.
