Tsis muaj cov tshuaj antioxidants uas tsim nyog yuav hloov lub gloss ntawm kub thiab nyiaj hmoov tom qab luam ntawv. Txog thaum xyoo 1980, Nyiv lub hom phiaj tshwj xeeb xim luam ntawv luam tawm tau qhia, qhov tseem ceeb tshaj plaws elastic paste (tseem siv tau rau cov ntaub knitted kom tshem tawm qhov tsis xws luag los ntawm kev txuas ntxiv), overprint xim dawb paste (tseem siv rau cov ntaub tsaus), Foaming paste, anti-oxidative kub thiab nyiaj hmoov luam ntawv muab tshuaj txhuam thiab lwm yam, tab sis vim hais tias cov xim luam ntawv pastes tsuas yog haum rau kev tshuaj ntsuam phau ntawv luam ntawv, thiab tus nqi kuj tseem kim, kev nce qib tsis zoo nyob rau hauv ib puag ncig thaum lub sijhawm ntawd. Nws tsis yog txog thaum pawg luam ntawv tshuaj ntsuam tau txaus siab rau nws thiab qhov kev thov rau kev lag luam tawm txawv teb chaws cov khaub ncaws tau nce ntxiv tias cov xim tshwj xeeb luam ntawv tau tsim los ntawm leaps thiab ciam teb, tab sis qhov sib sib zog nqus ntawm cov xim tshwj xeeb luam ntawv tseem yuav tsum tau tham txog tiag tiag.
Lub tsib lub tuam txhab European loj txhua tus tsim cov nplaum nplaum, tab sis lawv tsis haum rau kev tsim khoom ntau vim muaj ntau yam xim tshwj xeeb luam ntawv pastes siv rau hauv cov xim tshwj xeeb luam ntawv pastes. Nyob rau tib lub sijhawm, nws feem ntau muaj nws cov kev txwv. Txawm li cas los xij, cov tuam txhab lag luam no tsuas yog muab cov nplaum nplaum thiab lawv cov khoom txhawb nqa, thiab faib cov kua nplaum filling additives cais. Vim tias cov khoom sib xyaw ntawm cov xim luam ntawv muab tshuaj txhuam, cov dej tso nyiaj ntau dua li ib feem peb ntawm tag nrho, thiab cov ntsiab lus dej ntawm lub tshuab luam ntawv muab tshuaj yog li ib nrab. Tab sis cov xim tshwj xeeb luam ntawv muab tshuaj yog txawv. Nws "nqhis" dhau los ua "muab tshuaj". Txawm hais tias nws qhov kev faib ua feem hloov pauv, nws yuav tsis txo cov dej hauv cov ntawv luam tawm, yog li nws tus nqi kuj siab thiab nws cov txiaj ntsig tau siab dua. Raws li tuaj yeem xav txog (vim "dej" kuj ua haujlwm raws li tus nqi ntawm "pulp").