Аутори:
1. Branka Ružičić, University of Banja Luka, Faculty of Technology, Republic of Srpska, Bosnia and Herzegovina
2. Драгана Грујић, Технолошки факултет Универзитета у Бањој Луци, Republic of Srpska, Bosnia and Herzegovina
3. Blanka Škipina, Технолошки факултет Универзитета у Бањој Луци, Republic of Srpska, Bosnia and Herzegovina
4. Биљана Пећанин, Универзитет у Бањој Луци, Технолошки факултет, Republic of Srpska, Bosnia and Herzegovina
5. Ана Велемир, Faculty of Technology, University of Banja Luka, Republic of Srpska, Bosnia and Herzegovina
6. Славица Малетић, Универзитет у Београду, Физички факултет, Студентски трг 12, Београд, Serbia
7. Sandra Dedijer, Факултет техничких наука Универзитета у Новом Саду, Serbia

Апстракт:
In this study, the spectrophotometric characteristics of samples screen-printed with alginate paste (CHT-NV) and modified bentonites on non-woven textiles were examined. Sodium bentonite was modified with CuSO4·5H2O and ZnSO4·7H2O in different percentages. An alcoholic extract of Picea omorika (conc. 100 mg/mL) was added to all printing pastes. Color coordinates and spectral reflectance curves in the visible region were measured. The color difference (ΔE) and color strength (K/S) were analyzed. The sample with added sodium bentonite showed an unnoticable color difference compared to the sample printed with the extract alone. However, this difference became noticeable with the addition of further modified bentonites in the paste. When sodium bentonite modified with ZnSO4·7H2O was used, an increase in ZnSO4·7H2O percentage resulted in a linear decrease in color difference. The most intense coloring was observed in the sample with bentonite modified with copper ions and the lowest percentage of zinc ions. As the percentage of zinc ions increased, the color intensity decreased. Consequently, the sample with sodium bentonite modified only with ZnSO4·7H2O showed the smallest K/S value.

Кључне речи:
Bentonite, plant extracts, spectrophotometric characteristics, color strenght, printed textiles, nonwoven textile,Bentonite,plant extracts,spectrophotometric characteristics,color strenght,printed textiles,nonwoven textile

Тематска област:
СИМПОЗИЈУМ Б - Биоматеријали и наномедицина

Датум пријаве сажетка:
29.06.2024.

Конференцијa:
Contemporary Materials 2024 - Savremeni Materijali

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