Isikhumba semvelo ngoba sinezici zemvelo ezinhle kakhulu sisetshenziswa kabanzi ukukhiqiza izinhlinzeko zansuku zonke kanye nemikhiqizo yezimboni, kodwa ngokwanda kwabasebenzi bamazwe ngamazwe, isidingo somuntu sesikhumba, inani elilinganiselwe lesikhumba semvelo alikwanelisanga ukufunwa kwabantu. Ukubhekana nalokhu kuphikiswa, ososayensi baqala emashumini eminyaka adlule, ukuthuthukiswa kocwaningo lwesikhumba sokwenziwa, isikhumba, ukuze kulungiswe ukuntuleka kwesikhumba semvelo. Ngaphezu kwe 50 iminyaka yenqubo yomlando ngaphambi kwesemina ngenqubo yempi yesikhumba yemvelo yesikhumba sokwenziwa, isikhumba.
Ososayensi abavela ocwaningweni bahlaziya ukwakheka kwamakhemikhali esikhumba semvelo kanye nesakhiwo sokuhlela siqala, qala ngendwangu yokugqoka i-nitrocellulose, esikhumbeni sokwenziwa se-PVC, lesi yisizukulwane sokuqala sempahla yesikhumba yokwenziwa. Ngesisekelo salokhu, ososayensi benza intuthuko nokuhlola okuningi, okokuqala ukuthuthukiswa kwezinto eziyisisekelo, kulandelwa i-resin yokugcoba ishintshiwe futhi yathuthukiswa. Kwe 1970 s, kwinaliti ye-fiber engalukiwe ibe yinethiwekhi, ihlanganiswe kunethiwekhi yobuchwepheshe, yenza izinto eziyisisekelo ngesigaba sempande ye-lotus, i-fibrous engenalutho, kuze kufike esakhiweni esinezimbotshana, kanye nesakhiwo senethiwekhi yesidingo sesikhumba semvelo; Lapho ukwakheka ebusweni lesikhumba baye bakwazi ukwenza emihle celled polyurethane ungqimba isakhiwo, okulingana nezinhlamvu zesikhumba zemvelo, ukuze ukubukeka nokwakhiwa komqondo we-PU lesikhumba nesikhumba semvelo kusondele kancane kancane, nezinye izinto ezibonakalayo ziseduze nesikhumba semvelo
