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Digital printing knitted fabrics made of polyamide, cotton and blends thereof
ID Forte-Tavčer, Petra (Author)

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Abstract
Knitted fabrics with different compositions, i.e. 100% cotton (CO), 100% polyamide (PA), and a blend of 50% cotton and 50% polyamide (CO/PA), were digitally printed with reactive dyes. The cotton fabric was pretreated with a conventional alkaline solution of alginate thickener, sodium carbonate and urea. The polyamide fabric was pretreated with an acidic solution of galactomannan thickener. The CO/PA blend was pretreated once with the alginate and once with the galactomannan preparation. The aim of the study was to determine whether the proposed preparation is suitable for printing polyamide with reactive dyes and which preparation is more suit-able for printing the cotton-polyamide blend. The CIE L*a*b* colour values, the colour depth (K/S) and the dye penetration of the printed samples were compared. It was determined that under the same printing conditions, the highest colour depth was achieved on cotton, while a lower depth was recorded on polyamide. The colour depth on the cotton-polyamide blend was lower than on the two pure fabrics. For some colours, the colour depth was higher with the alginate thickener preparation, for others with the galactomannan thickener, so that no definitive preference for one preparation over the other can be given for printing blends. The colour fastness of the prints to dry rubbing (crock test), light and washing at 40 °C was acceptable for all samples.

Language:English
Keywords:digital printing, reactive dyes, polyamide, cotton, preparations
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:NTF - Faculty of Natural Sciences and Engineering
Publication status:Published
Publication version:Version of Record
Year:2025
Number of pages:Str. 4–13
Numbering:Vol. 68, no. 1
PID:20.500.12556/RUL-176813 This link opens in a new window
UDC:677
ISSN on article:0351-3386
DOI:10.14502/tekstilec.68.2024077 This link opens in a new window
COBISS.SI-ID:221326851 This link opens in a new window
Publication date in RUL:22.12.2025
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Downloads:17
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Record is a part of a journal

Title:Tekstilec : glasilo slovenskih tekstilcev
Shortened title:Tekstilec
Publisher:Založba Univerze v Ljubljani
ISSN:0351-3386
COBISS.SI-ID:763396 This link opens in a new window

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Language:Slovenian
Title:Digitalni tisk poliamida in mešanic bombaž-poliamid
Abstract:
Pletivo z različno surovinsko sestavo: 100-odstotni bombaž (CO), 100-odstotni poliamid (PA) in mešanica 50 % bombaža in 50 % poliamida (CO/PA) je bilo digitalno tiskano z reaktivnimi barvili. Bombažno blago je bilo pred tiskanjem impregnirano z alkalno raztopino alginatnega zgostila, natrijevega karbonata in sečnine. Poliamidno blago je bilo impregnirano s kislo raztopino galaktomananskega zgostila. Mešanica CO/PA je bila impregnirana ali z alginatno ali z galaktomanansko apreturo. Namen raziskave je bil ugotoviti, ali je predlagana apretura primerna za digitalno tiskanje poliamida z reaktivnimi barvili in katera apretura je bolj primerna za tiskanje mešanice iz bombaža in poliamida. Na vzorcih, potiskanih s cian, magenta, rumeno in črno, so bili izmerjeni CIE L*a*b* barvne vrednosti, globina barvnih tonov (K/S) in pretisk barvila na hrbtno stran blaga. Ugotovljeno je bilo, da se pri istih pogojih tiskanja dosežejo najvišje K/S vrednosti na bombažu in nižje na poliamidu. Globina barve na mešanicah je bila nižja kot na obeh čistih pletivih. Za nekatere barve so bile K/S-vrednosti višje ob impregnaciji z alginatnim zgostilom, za nekatere z galaktomananskim zgostilom, tako da za nobeno apreturo ne moremo reči, da je primernejša za tiskanje mešanic bombaž/poliamid. Barvne obstojnosti tiskov na suho drgnjenje (crock test), svetlobo in pranje pri 40 °C so bile ustrezne pri vseh vzorcih.

Keywords:digitalni tisk, reaktivna barvila, poliamid, bombaž, mešanica, impregnacija

Projects

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P2-0213
Name:Tekstilije in ekologija

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:I0-0022
Name:Mreža raziskovalnih infrastrukturnih centrov Univerze v Ljubljani (MRIC UL)

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