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Effect of grey component replacement processing and varnishing on the light fastness of colours on cardboard prints / Tomislav Cigula in COLORATION TECHNOLOGY, Vol. 139, N° 1 (02/2023)
[article]
Titre : Effect of grey component replacement processing and varnishing on the light fastness of colours on cardboard prints Type de document : texte imprimé Auteurs : Tomislav Cigula, Auteur ; Tamara Tomasegovic, Auteur ; Davor Donevski, Auteur ; Tomislav Hudika, Auteur Année de publication : 2023 Article en page(s) : p. 16-27 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Emballages
Fourier, Spectroscopie infrarouge à transformée de
Impression en couleur
Mesure
Papier et carton couché
Photostabilité
Réflexion totale atténuée
Résistance à l'abrasion
Solidité de la couleur
Vernis en phase aqueuseIndex. décimale : 535.6 Couleur Résumé : The visual appearance of packaging is one of its most important features. Electromagnetic irradiation causes a change in colour and often leads to colour fading (ie, to diminished visual appearance of a printed product). This research study aimed to determine the combined effect of grey component replacement image processing and varnishing on the protection of prints' appearance when exposed to accelerated ageing. For that purpose, two test charts were printed in a lithographic press and coated with water-based and ultraviolet-curable varnish before exposing them to xenon light. The prepared prints were evaluated by determining the tone values and colour difference, as well as the rub and abrasion resistance. In addition, Fourier Transform–infrared-attenuated total reflectance spectra were recorded to detect possible chemical changes caused by the (AcA). The results showed that the investigated period of (AcA) caused significant differences in the tone values of yellow, while the other primary colours proved to be more resistant. The water-based varnish provided better protection than the ultraviolet-curable varnish. The grey component replacement image processing diminished the colour difference caused by (AcA) on all the prepared print samples, and was particularly detected in tertiary colours containing the mid-range tone values of yellow (34%-68%). Both varnishes improved the rub resistance of aged prints, but only ultraviolet-curable varnish improved the abrasion resistance of both the unaged and the aged prints. In conclusion, applying varnish to prints ensured enhanced rub and abrasion resistance and diminished the colour change caused by (AcA). Finally, improved resistance to colour change was achieved by processing images with the grey component replacement method. Note de contenu : - EXPERIMENTAL : Materials and preparation of samples - Methods of measurement and analysis
- RESULTS AND DISCUSSION : TVs of process colours and colour difference of tertiary colours - Rub and abrasion resistance of the prints - FTIR-ATR spectroscopyDOI : https://doi.org/10.1111/cote.12630 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12630 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39202
in COLORATION TECHNOLOGY > Vol. 139, N° 1 (02/2023) . - p. 16-27[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24084 - Périodique Bibliothèque principale Documentaires Disponible Effect of silica based sols on the optical properties and colour fastness of synthetic indigo dyed denim fabrics / Sabiha Sezgin Bozok in COLORATION TECHNOLOGY, Vol. 137, N° 3 (06/2021)
[article]
Titre : Effect of silica based sols on the optical properties and colour fastness of synthetic indigo dyed denim fabrics Type de document : texte imprimé Auteurs : Sabiha Sezgin Bozok, Auteur ; Ramazan Tugrul Ogulata, Auteur Année de publication : 2021 Article en page(s) : p. 209-216 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : 3-Glycidoxypropyltrimethoxysilane
Colorimétrie
Enrobage (technologie)
Essais (technologie)
Indigo
Jeans
Orthosilicate de tétraéthyleL'orthosilicate de tétraéthyle (TEOS) est un composé chimique de formule Si(OCH2CH3)4 ou plus simplement Si(OEt)4; l'abréviation TEOS (pour tetraethylorthosilicate) est généralement utilisée dans l'industrie du sol-gel, où il est intensivement étudié. La majorité des études en sol-gel pour des sols de silices ont utilisé ce produit comme précurseur.
Le TEOS est généralement produit par alcoolyse du tétrachlorure de silicium SiCl4 dans de l'éthanol CH3CH2OH :
SiCl4 + 4 CH3CH2OH → Si(OCH2CH3)4 + 4 HCl.
Il est utilisé pour la réticulation de silicones et possède certaines applications comme précurseur du dioxyde de silicium SiO2 dans l'industrie des semi-conducteurs6 dans le cadre d'une réaction sol-gel. La propriété remarquable du TEOS est en effet de former du SiO2 par simple hydrolyse en libérant de l'éthanol CH3CH2OH :
Si(OCH2CH3)4 + 2 H2O → SiO2 + 4 CH3CH2OH.
Résistance à l'abrasion
Résistance au lavage
SiliceLa silice est la forme naturelle du dioxyde de silicium (SiO2) qui entre dans la composition de nombreux minéraux.
La silice existe à l'état libre sous différentes formes cristallines ou amorphes et à l'état combiné dans les silicates, les groupes SiO2 étant alors liés à d'autres atomes (Al : Aluminium, Fe : Fer, Mg : Magnésium, Ca : Calcium, Na : Sodium, K : Potassium...).
Les silicates sont les constituants principaux du manteau et de l'écorce terrestre. La silice libre est également très abondante dans la nature, sous forme de quartz, de calcédoine et de terre de diatomée. La silice représente 60,6 % de la masse de la croûte terrestre continentale.
Sol-gel, Procédé
Solidité de la couleur
Teinture -- Fibres textilesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : The colour of denim fabric, which has a large share in the textile market, is an important parameter together with comfort properties during usage. While some users prefer the colour of denim fabrics to have different colours as they use them, others want to be provided with colour stability of the fabrics during use. In this study, the effect of a sol-gel technique on indigo dyed denim fabrics was investigated. The aim was to reduce the colour change that occurs in denim fabrics as a result of external factors by using silica-based coatings. The sols were prepared by using TEOS (tetraethylortosilicate) and different volumes of GPTS ((3-glycidyloxypropyl)trimethoxysilane) as precursors in acidic and alkaline conditions. Synthetic indigo dyed cotton denim fabrics were treated with the sols by applying the pad-dry-cure method. It was determined that the colour strength of the treated samples increased and the fabrics treated with the sols prepared in alkaline condition became darker compared to the sols in acidic condition. It is seen that the use of crosslinkers while preparing the sol could improve the rubbing and washing fastness of commercial denim samples. Note de contenu : - MATERIALS AND METHODS : Preparation of the sols and coating process - Testing methods
- RESULTS AND DISCUSSION : SEM analysis - Colour measurements - Rubbing fastness - Wash fastness
- Table 1 : Content of solutions and the sample codes
- Table 2 : Colour difference values of the treated samples
- Table 3 : Rubbing fastness of the samples
- Table 4 : Washing fastness of the samples according to the standardDOI : https://doi.org/10.1111/cote.12521 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12521 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36087
in COLORATION TECHNOLOGY > Vol. 137, N° 3 (06/2021) . - p. 209-216[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22845 - Périodique Bibliothèque principale Documentaires Disponible Effect of the rubbing force on dry rubbing fastness with various white cloths / Keiko Suganuma in COLORATION TECHNOLOGY, Vol. 129, N° 6 (12/2013)
[article]
Titre : Effect of the rubbing force on dry rubbing fastness with various white cloths Type de document : texte imprimé Auteurs : Keiko Suganuma, Auteur Année de publication : 2013 Article en page(s) : p. 443-447 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Evaluation
Frottements (mécanique)
Solidité de la couleur
Textiles et tissus
Transfert de colorantsTags : 'Tissus teints' blancs' 'Frottements secs' 'Transfert de colorants' 'Force frottement' Index. décimale : 667.3 Teinture et impression des tissus Résumé : The rubbing-off of dye from fabrics was investigated from a kinetic viewpoint using various white cloths under weights of 2–6 N. The natural logarithm of the rate constant of dye transfer from dyed fabric to white cloths and that of the equilibrium constant were linearly related to the reciprocal of the rubbing force, which was given by the product of the weight and the friction coefficient between the dyed fabric and white cloth. Two straight lines were obtained, in spite of the variety of white cloths used, and they converged in the low rubbing force range. The results show that the dry rubbing fastness with various white cloths is primarily influenced by the friction coefficient and rubbing force rather than by the types of textile fibre or fabric. Note de contenu : - EXPERIMENTAL : Sample of dyed fabric - Samples of white cloth - Measurement of friction coefficient - Rubbing test - Determination of the amount of dye transferred to white cloths
- RESULTS AND DISCUSSION : Friction coefficient - Amount of dye transferred to white cloth - A measure of rubbing fastness - Rate constant and equilibrium constantDOI : 10.1111/cote.12053 En ligne : http://onlinelibrary.wiley.com/doi/10.1111/cote.12053/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19750
in COLORATION TECHNOLOGY > Vol. 129, N° 6 (12/2013) . - p. 443-447[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15730 - Périodique Bibliothèque principale Documentaires Disponible Effects of ozone treatment on denim garment properties / Abir Ben Fraj in COLORATION TECHNOLOGY, Vol. 137, N° 6 (12/2021)
[article]
Titre : Effects of ozone treatment on denim garment properties Type de document : texte imprimé Auteurs : Abir Ben Fraj, Auteur ; Boubaker Jaouachi, Auteur Année de publication : 2021 Article en page(s) : p. 678-688 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse de variance En statistique, l'analyse de la variance (terme souvent abrégé par le terme anglais ANOVA : ANalysis Of VAriance) est un ensemble de modèles statistiques utilisés pour vérifier si les moyennes des groupes proviennent d'une même population. Les groupes correspondent aux modalités d'une variable qualitative (p. ex. variable : traitement; modalités : programme d'entrainement sportif, suppléments alimentaires ; placebo) et les moyennes sont calculés à partir d'une variable continue (p. ex. gain musculaire).
Ce test s'applique lorsque l'on mesure une ou plusieurs variables explicatives catégorielles (appelées alors facteurs de variabilité, leurs différentes modalités étant parfois appelées "niveaux") qui ont de l'influence sur la loi d'une variable continue à expliquer. On parle d'analyse à un facteur lorsque l'analyse porte sur un modèle décrit par un seul facteur de variabilité, d'analyse à deux facteurs ou d'analyse multifactorielle sinon. (Wikipedia)
Jeans
Ozonation
Plan d'expérience
Résistance à l'abrasion
Solidité de la couleur
Stabilité dimensionnelle
Taguchi, Méthodes de (Contrôle de qualité)
Textiles et tissus -- LavageIndex. décimale : 667.3 Teinture et impression des tissus Résumé : The conventional denim washing process is considered to be the most polluting in the textile industry. This sector uses huge amounts of water, energy and chemicals, and generates a lot of wastewater with a high pollution load. For this reason, other types of washing treatment have been discovered. Among these treatments, we can specify the ozone treatment, which is sustainable and economical. In this study, ozone treatment was applied to denim fabric samples to improve the effect of the washing conditions on the appearance and physical characteristics of the fabrics. Bagging resistance, force at break, shrinkage, spectroscopy testing, rubbing fastness evaluation and Fourier Transform–infrared analysis of the treated and untreated denim fabrics (which did not undergo desizing treatment) were analysed and investigated. To study the individual and main effects and significance of input parameters, the Taguchi design was used. Based on the obtained results, ozone treatment increased the whiteness value of treated fabrics. Moreover, it induced certain changes to the physical, mechanical and bagging properties of denim fabrics. The loss of force at break and the percentage of shrinkage reached 30.11% and 15.15%, respectively. The bagging resistance indicated a significant decrease of up to 40.17% after ozone treatment. Note de contenu : - MATERIALS AND METHODS : Materials - Methods - Experimental design
- RESULTS AND DISCUSSION : FTIR analysis - Effect of ozonation parameters on the breaking force - Effect of ozonation parameters on the dimensional stability - Effect of ozonation treatment on the bagging properties - Effect of ozone treatment on colour characteristics and rubbing fastness
- Table 1 : Fabric characteristics
- Table 2 : The recipe of treatment
- Table 3 : Experimental design
- Table 4 : Analysis of variance for mean breaking force in the warp direction
- Table 5 : CIEL*a*b and colour fastness values of treated and untreated fabric with ozoneDOI : https://doi.org/10.1111/cote.12568 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12568 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36797
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Code-barres Cote Support Localisation Section Disponibilité 23068 - Périodique Bibliothèque principale Documentaires Disponible Enhanced dyeability of poly(ethylene terephthalate)/organoclay nanocomposite filaments / Ilhan Özen in COLORATION TECHNOLOGY, Vol. 131, N° 6 (12/2015)
[article]
Titre : Enhanced dyeability of poly(ethylene terephthalate)/organoclay nanocomposite filaments Type de document : texte imprimé Auteurs : Ilhan Özen, Auteur Année de publication : 2015 Article en page(s) : p. 464-473 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Argile
Colorants
Extrusion filage
Matériaux hybrides
Montmorillonite
Polyéthylène téréphtalate
Polymères -- Propriétés thermiques
Solidité de la couleur
Teinture -- Fibres textiles synthétiquesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : This study deals with the generation of poly(ethylene terephthalate)/organoclay nanocomposite filaments by the melt-spinning method and with the investigation of their morphological and dyeing properties. Different montmorillonite types of clay (Resadiye and Rockwood) were modified using different intercalating agents, and poly(ethylene terephthalate) nanocomposite filaments containing 0.5 and 1 wt% organoclays were prepared. Afterwards, the filaments were dyed with two disperse dyes (Setapers Red P2G and Setapers Blue TFBL-NEW) at different temperatures (100, 110, and 120 °C) in the absence/presence of a carrier. Organoclays and poly(ethylene terephthalate)/organoclay nanocomposites showed an increased d-spacing between clay layers. Irrespective of clay and surfactant type, poly(ethylene terephthalate)/organoclay nanocomposite filaments dyed at 120 °C in the presence of only a very small amount of carrier showed appreciable dyeability in comparison with neat poly(ethylene terephthalate). The dyeability of the organoclay-containing poly(ethylene terephthalate) samples was found to be better in spite of having increased degrees of crystallinity. Moreover, the colour fastness properties of the clay-containing samples were not affected adversely. Note de contenu : - EXPERIMENTAL : Materials - Surfactant synthesis and clay modification - Preparation of the poly(ethylene terephthalate)/organoclay nanocomposites filaments - Dyeing of the poly(ethylene terephthalate)/organoclay nanocomposites filaments - Characterisation
- RESULTS AND DISCUSSION : Morphology - Thermal behaviour - Dyeability - Colour fastnessDOI : 10.1111/cote.12179 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12179 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25116
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