Mfundo Yofunika Kwambiri ndi Cholinga Choyatsa ndi Kutsuka Nsalu za Thonje

Mfundo Yofunika Kwambiri ndi Cholinga cha Kukwapula Nsalu za Thonje

Kukwapula ndiko kugwiritsa ntchito mankhwala ndi njira zakuthupi kuchotsa zonyansa zachilengedwe pa nsalu za thonje, zomwe ndi kukwaniritsa cholinga chotsuka ndi kuyeretsa mapadi. Kujambula ndi njira yofunikira kwambiri pamasewerachithandizo.

Kwa ulusi wokhwima wa thonje, cellulose imakhala yoposa 94%. Pakukwapula, iyenera kuchotsa zonyansa 6%.

Ngati wosanjikiza wakunja uli pafupi ndi pamwamba, zomwe zili zonyansa zidzakhala zapamwamba. Zonyansa izi makamaka pamwamba pa pulayimale selo khoma ndi kupanga hydrophobic mauna wosanjikiza ndi pectin monga mafupa kudzera adhesion unyolo waukulu ndi unyolo nthambi ya pectic zinthu. Cholinga chakukwapulandi kuwononga ndi kuchotsa hydrophobic mauna wosanjikiza, makamaka kuchotsa sera.

Mfundo Yofunika Kwambiri ndi Cholinga Chothirira Nsalu za Thonje

Padzapanga mtundu wa pigment womwe uli ngati utoto wa asidi mukukula kwa cellulose wachilengedwe. Mtundu woterewu wa pigment sungathe kuchotsedwa bwinobwino pokolopa. Ikhoza kuchotsedwa ndikuthirirandondomeko.

Cholinga chachikulu cha bleaching ndikuchotsa pigment yachilengedwe ndikuwonjezera kuyera kwa nsalu. Panthawi imodzimodziyo, iyenera kuchotsa zonyansa zina zotsalira pa nsalu ya thonje, monga chipolopolo cha mbewu ya thonje, sera ndi zinthu za nayitrogeni, etc.

Oxidants ndi zochepetsera zimatha kuyimitsa ulusi wachilengedwe. Koma zochepetsera sizingawononge bwino mtundu wa ulusi wachilengedwe. Nsalu yomwe imachepetsa bleached imakhala ndi zoyera zochepa ndipo imakhala yachikasu pakapita nthawi yayitali. Koma ma okosijeni amatha kuwononga mamolekyu a pigment mu ulusi wachilengedwe, womwe ungathe kutulutsa mphamvu yolimba.

Zomwe zimagwiritsidwa ntchito kwambiri pochepetsa kuthirira ndi sodium sulfite, otsika sodium sulfite ndi sodium hydrosulfite, ndi zina zambiri. Ndipo omwe amagwiritsidwa ntchito kwambiri ndi makutidwe ndi okosijeni okositsa ndi hypochlorite, sodium chlorite, hydrogen peroxide ndi potaziyamu permanganate, ndi zina zambiri.

Yogulitsa 11403 Scouring Agent Wopanga ndi Wopereka | Zatsopano (textile-chem.com)