Ocena učinkovitosti razbarvanja monoklorotriazin/vinilsulfonskih reaktivnih barvil z redukcijskim razbarvalnim sredstvom

Avtorji

  • Mahfuza Pervin Primeasia University, Department of Textile Engineering, Banani, Dhaka, Bangladesh
  • Sanjida Sultana Primeasia University, Department of Textile Engineering, Banani, Dhaka, Bangladesh
  • Fahmida Faiza Fahmi Primeasia University, Department of Textile Engineering, Banani, Dhaka, Bangladesh https://orcid.org/0000-0002-0486-4856
  • Zinia Yasmin Primeasia University, Department of Textile Engineering, Banani, Dhaka, Bangladesh
  • Sushama Saha Swati Primeasia University, Department of Textile Engineering, Banani, Dhaka, Bangladesh

DOI:

https://doi.org/10.14502/tekstilec.65.2022062

Ključne besede:

reaktivno barvilo, reduktivno razbarvanje, temperatura, indeks beline, učinkovitost razbarvanja

Povzetek

Industrija mokre obdelave se srečuje z raznolikimi težavami, kot so napačni in neenakomerni barvni odtenki, barvni madeži na površini obarvanega blaga in težavami, ki nastanejo med barvanjem in poznejšo obdelavo tekstilnih materialov. Razbarvanje je postopek, ki zmanjša napako pri barvanju in s tem omogoči ponovno uporabo barvanega blaga. Namen tega članka je oceniti učinkovitost sredstev za razbarvanje in kakovost razbarvanih bombažnih pletiv z uporabo bifunkcionalnih (monoklorotriazinskih/vinil sulfonskih) reaktivnih barvil. Prvič je bila za barvanje pletiv v dveh različnih odtenkih uporabljena trikromatska kombinacija barvil Drimarene Yellow CL2R, Drimarene Red CL5B in Drimarene Blue HFRL, in sicer za svetli odtenek 0,3 % barvila na maso pletiva in za temni odtenek 3,0 % barvila na maso pletiva. Zato je bilo razbarvanje izvedeno z različnimi koncentracijami sredstev za razbarvanje (natrijev hidrosulfit in natrijev hidroksid) in spreminjanjem temperature postopka. Razbarvana pletiva so bila ocenjena glede na odstotek zmanjšanja mase, odstotek znižanja trdnosti, indeksa beline in učinkovitosti razbarvanja. Ugotovljena je bila relativno boljša učinkovitost razbarvanja s koncentracijo 5 g/L natrijevega hidrosulfita in 5 g/L natrijevega hidroksida pri 100 °C. Pri teh pogojih sta bili vrednosti indeksa beline in učinkovitosti razbarvanja ustrezni ob minimalnem odstotku zmanjšanja mase in trdnosti. Učinkovitejše razbarvanje je bilo doseženo pri pletivu s svetlim odtenkom (0,3 % barvila na maso pletiva) kot pri pletivu s temnim odtenkom (3,0 % barvila na maso pletiva).

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Prenosi

Objavljeno

04.01.2023

Kako citirati

Pervin, M., Sultana, S., Fahmi, F. F., Yasmin, Z., & Swati, S. S. (2023). Ocena učinkovitosti razbarvanja monoklorotriazin/vinilsulfonskih reaktivnih barvil z redukcijskim razbarvalnim sredstvom. Tekstilec, 65(4), 256–267. https://doi.org/10.14502/tekstilec.65.2022062

Številka

Letn. 65 Št. 4 (2022)

Rubrike

Znanstveni članki

Licenca

Avtorske pravice (c) 2023 Mahfuza Pervin, Sanjida Sultana, Fahmida Faiza Fahmi, Zinia Yasmin, Sushama Saha Swati

Creative Commons licenca

To delo je licencirano pod Creative Commons Priznanje avtorstva-Deljenje pod enakimi 4.0 mednarodno licenco.