Kev mos
Hauv toj roob hauv pes ntawm Ecuador loj hlob ib tsob nroj hu ua toquilla, cov stems uas tuaj yeem ua rau cov kaus mom tom qab qee qhov kev kho mob. Lub kaus mom no tau nrov nrog cov neeg ua haujlwm ntawm Panama Canal vim nws lub teeb, mos thiab ua pa, thiab lub npe hu ua "Panama kaus mom". Koj tuaj yeem dov tag nrho cov khoom, muab tso rau hauv ib lub nplhaib thiab nthuav nws yam tsis muaj wrinkle. Yog li nws feem ntau tau ntim rau hauv lub tog raj kheej thiab dov thaum tsis hnav, ua kom yooj yim nqa mus.
Ib qho ntawm Bernini cov sculptures tshaj plaws yog cov khawv koob "Pluto Snatching Persephone", qhov twg Bernini tsim dab tsi yog qhov "softest" marble hauv tib neeg keeb kwm, qhia txog qhov zoo nkauj tshaj plaws ntawm marble hauv nws "softness".
Softness yog qhov kev nkag siab yooj yim uas ua rau tib neeg paub txog tus kheej. Tib neeg nyiam softness, tej zaum vim nws tsis ua rau peb raug mob los yog txaus ntshai, tab sis tsuas yog kev ruaj ntseg thiab kev nplij siab. Yog tias tag nrho cov sofas hauv tsev neeg Asmeskas yog Suav cov khoom ua si lom zem, yuav tsum tsis txhob muaj ntau lub rooj zaum qos, txoj cai?
Yog li ntawd, rau tawv, softness yeej ib txwm yog ib qho ntawm feem ntau pom zoo los ntawm cov neeg siv khoom. Seb nws yog khaub ncaws, rooj tog, lossis carseat.
Cov khoom lag luam zoo tshaj plaws rau qhov softness ntawm tawv-ua yog fatliquor.
Lub softness ntawm tawv yog qhov tshwm sim es tsis yog lub hom phiaj ntawm fatliquor, uas yog los tiv thaiv cov qauv fiber ntau los ntawm re-adhesion thaum lub sij hawm ziab (lub cev qhuav dej).
Tab sis nyob rau hauv txhua rooj plaub, kev siv cov fatliquors, tshwj xeeb tshaj yog tej yam ntuj tso sawv daws yuav, yuav ua tau heev mos thiab xis tawv. Txawm li cas los xij, kuj tseem muaj teeb meem: feem ntau natural fatliquors muaj qhov tsis hnov tsw tsw los yog yellowing vim muaj coob tus unsaturated bonds nyob rau hauv lawv cov qauv. Synthetic fatliquors, ntawm qhov tod tes, tsis raug kev txom nyem los ntawm qhov teeb meem no, tab sis lawv feem ntau tsis yog mos thiab xis nyob raws li qhov xav tau.
Kev txiav txim siab muaj ib yam khoom uas daws qhov teeb meem no thiab ua tiav qhov kev ua tau zoo tshaj plaws:
DESOPON USFSuper mos hluavtaws fatliquor
Peb tau ua kom nws mos li nws tuaj yeem ua tau -