IR-marked sewing and embroidery yarns for protection against forgery / Karola Schäfer in CHEMICAL FIBERS INTERNATIONAL, Vol. 72, N° 4 (11/2022)  

[article]  inCHEMICAL FIBERS INTERNATIONAL > Vol. 72, N° 4 (11/2022) . - p. 200-203 Titre : IR-marked sewing and embroidery yarns for protection against forgery Type de document : texte imprimé Auteurs : Karola Schäfer, Auteur ; Rostislav Vinokur, Auteur ; Andrij Pich, Auteur ; Martin Möller, Auteur ; Volkan Yavuz, Auteur ; Philipp Kreis, Auteur ; Simon König, Auteur ; Michael R. Buchmeiser, Auteur ; Stefan Schindler, Auteur ; Bauder Hans-Jürgen, Auteur ; Götz T. Gresser, Auteur Année de publication : 2022 Article en page(s) : p. 200-203 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Broderie Caractérisation Couture Dispersions et suspensions Falsification -- Lutte contre Fil partiellement orienté Hexaborure de lanthane Mélanges-maîtres (chimie) Nanoparticules Pigments Polyéthylène téréphtalate Rayonnement infrarouge Tungstate de césium Index. décimale : 677 Textiles Résumé : Sewing and embroidery yarns containing NIR-absorbing nanopigments as safety markers based on lanthanum hexaboride and cesium tungstate nanoparticles were developed. Homogeneous dispersion of the nanopigments within polyethylene terephthalate (PET) yarns was achieved by appropriate surface modification of the particles. The nanopigments were added in masterbatches to the PET melt for fabrication of partially oriented yarns (POY). These were processed further by drawing and twisting for sewing and embroidery yarns. The safety marking can be detected by NIR-irradiation and visualized by thermal imaging. More detailed analysis of the pigment composition and fiber structure, e.g. by electron microscopy combined with EDX element analysis allows unambiguous verification of the genuineness. Note de contenu : - Selection and characterization of NIR nanopigments - Masterbatch fabrication and spining of marked PET POY - Production of marked drawn yarns - Production of marked sewing and embroidery yarns - Embroidery samples - Proof of the effect - Unambiguous proof of evidence En ligne : https://drive.google.com/file/d/1LpAR2qmVkMBSFT5wZfyQvG7_k8TR6NLm/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38479 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
23749	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Taylor-made special yarns from PET POY for technical and medical products / Stefan Schindler in CHEMICAL FIBERS INTERNATIONAL, (10/2012)  

[article]  inCHEMICAL FIBERS INTERNATIONAL > (10/2012) . - p. 57-59 Titre : Taylor-made special yarns from PET POY for technical and medical products Type de document : texte imprimé Auteurs : Stefan Schindler, Auteur ; Bauder Hans-Jürgen, Auteur ; Heinrich Planck, Auteur Année de publication : 2012 Article en page(s) : p. 57-59 Langues : Anglais (eng) Catégories : Fil partiellement orienté Polyéthylène téréphtalate Textiles et tissus à usages médicaux Index. décimale : 677.4 Textiles artificiels Résumé : DDriven by the increasing demand for technical and medical PET filament yarns within the titer range of up to 300 dtex, processes and means were explored which permit manufacturing of tailor-made special yarns in small lot sizes. Because LOY (low oriented yarn) can neither be sorted for a longer time, nor easily transport, it is not available to the smaller filament yarn processors as raw material. Usability of PET POY (partially oriented yarn), both as standard product and with higher viscosities, as storable and widespread alternative to LOY was examined in the present AiF project (IGF 15566 N). The effects on the yarn characteristics of the yarn heating method during drawing were analyzed e.g. with saturated steam instead of a heated godet. The results are now a part of a retrieval system. The DITF Denkendorf offers its application to enterprises. Note de contenu : - Characterization drawing test (CDT) - Influence of the viscosity of the PET granulates - Influences of the drawing - Influences of saturated steam in the drawing process - Shelf life of POY - Retrieval system for structured information - Guideline for the development of setting for drawing technical and medical yarns from PET POY En ligne : https://drive.google.com/file/d/1nw05vPj4AdwiGaRa-ILy8BnaYRNVHjBK/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16339 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
14248	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 2 / 2)