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Adhesive layer dewetting of self-adhesive labels / Alain Pouchelon in ADHESIVES AGE, Vol. 38, N° 3 (03/1995)
[article]
Titre : Adhesive layer dewetting of self-adhesive labels Type de document : texte imprimé Auteurs : Alain Pouchelon, Auteur ; A. Liévre, Auteur Année de publication : 1995 Article en page(s) : p. 50-52 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésifs en phase solvant
Adhésifs sensibles à la pression
Démouillage (chimie des surfaces)
Etiquettes
PolydiméthylsiloxaneLe polydiméthylsiloxane —[O-Si(CH3)2]n—, ou poly(diméthylsiloxane) selon la nomenclature systématique, communément appelé PDMS ou diméthicone, est un polymère organominéral de la famille des siloxanes souvent présent dans les shampoings. On l'y ajoute pour augmenter le volume des cheveux mais il peut également aller boucher les pores du cuir chevelu et rendre les cheveux gras. C'est une des raisons pour lesquelles se laver les cheveux tous les jours est très déconseillé avec un shampooing contenant des silicones.
Il existe également de l'amodiméthicone, qui est un dérivé du diméthicone.
Le polydiméthylsiloxane est un additif alimentaire (E900), utilisé comme antimoussant dans les boissons (Coca-Cola BlāK).
La chaîne de poly(diméthylsiloxane) forme également la structure de base des huiles et des caoutchoucs silicones.
PolyhydrogénosiloxaneIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : To avoid undesirable sticking before use, a self-adhesive label must be protected, and this is achieved with a complex system of at least four superimposed layers (1). Figure 1 shows that first them is the label itself, a paper or plastic sheet (generally printed), then a thin layer of adhesive, then a much thinner layer of an anti-adhesive finish, and finally the sheet of paper that supports this finish.
A process for producing such a sandwich can be :
- to coat the protective paper with a very thin anti-adhesive layer. A silicone resin often is used, and the coating thickness approaches 1 [[micro]meter].
- after the coating is polymerized, it is covered by an adhesive, such as an acrylic emulsion. Its thickness in the dry state is about 20 [[micro]meter].
- when the adhesive is dry the paper or the plastic film of the label is put into place.
Self-adhesive labels have become familiar. They must conform to precise requirements such as good adhesion to where they are placed and a low but perfectly controlled adhesion to their protective film. The protective film - the paper discarded when the label is affixed - has to be perfectly adapted to the label: it is a high-tech product. Clearly, any defects in this support must be avoided.
In this article we examine the case in which holes appear in the adhesive layer due to the phenomenon of dewetting. The theory of dewetting will be reviewed and compared to our experimental data, leading to a better description of the phenomenon. In conclusion, we recommend ways to eliminate the spots of dewetting in the adhesive, layer of the labels.Note de contenu : - WETTING AND DEWETTING : Wetting - Dewetting - Hysteresis of wetting - Numerical application
- EXPERIMENTAL STUDIES : Materials - Methods
- RESULTS : Dewetting - TensiometryEn ligne : https://drive.google.com/file/d/1x6N7w9gDcCNa6eVT8dwR5m99sUcFa1GU/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20623
in ADHESIVES AGE > Vol. 38, N° 3 (03/1995) . - p. 50-52[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 001049 - Périodique Bibliothèque principale Documentaires Disponible Applying hot melt pressure sensitives in-line, on press / Ken Faulkner in ADHESIVES AGE, Vol. 40, N° 9 (08/1997)
[article]
Titre : Applying hot melt pressure sensitives in-line, on press Type de document : texte imprimé Auteurs : Ken Faulkner, Auteur Année de publication : 1997 Article en page(s) : p. 28-30 Langues : Américain (ame) Catégories : Adhésifs -- Appareils et matériel
Adhésifs sensibles à la pression
Adhésifs thermofusibles
Etat fondu (matériaux)
EtiquettesIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : Of the thousands of label presses at work today, perhaps 300 to 400 have the capability to coat hot melt pressure sensitive adhesives in-line, on press. Why, when coated stock is so readily available, would a label manufacturer go to the trouble of adding coating capabilities to what is already a complex piece of machinery? And why hot melt PSAs? Aren't hot melts and the equipment big gooey messes ? Note de contenu : - Profitability
- Versability
- WHY HOT MELT PSAS ?: Maintenance - Higher press speeds
- NECESSARY EQUIPMENT : Pre-melter or melt/meter unit - The slot die applicator - The coating stationEn ligne : https://drive.google.com/file/d/120nNA2Ke7E4VwtdnwErbmR-WMZzBAevy/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20454
in ADHESIVES AGE > Vol. 40, N° 9 (08/1997) . - p. 28-30[article]Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 001079 - Périodique Bibliothèque principale Documentaires Exclu du prêt
[article]
Titre : Convertin success Titre original : Converters should partner with adhesive manufacturers that are committed to designing PSAs with properties that benefit the converting process Type de document : texte imprimé Auteurs : Kathy Magyar, Auteur Année de publication : 2018 Article en page(s) : p .38-41 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésifs sensibles à la pression
Adhésifs thermofusibles
Emballages souples
EtiquettesIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : For nearly 100 years, pressure-sensitive adhesives (PSAs) have been used in converting applications. According to the Adhesive and Sealant Council Inc.,2 one of the first converting applications to feature PSAs was Johnson & Johnson’s cloth Band-Aid® products in the 1920s. In the 1960s, PSAs began replacing cold glues for the labeling of plastic bottles. Today, PSAs are converted for thousands of applications in a variety of industries―from medical to industrial and beyond.
One of the most common industries to convert PSAs is labels and labeling. PSA label converting may consist of printing, over-laminating, die-cutting, matrix removal, web splicing and slitting. Die-cutting and matrix removal are generally the most commonly known label-finishing functions. Die-cutting is the process of using steel or magnetic tools to cut the finished shape of the label. The material that is left following a die-cut is called the matrix. Matrix removal is the process of stripping the excess matrix so only the cut labels remain on the silicone liner.Note de contenu : - CONVERTER-FREINDLY PSA LABEL TYPES : Acrylic emulsion - Hot melts
- Ensuring converting success
- A winning combinationEn ligne : https://www.adhesivesmag.com/articles/96161-successful-converting-with-pressure- [...] Format de la ressource électronique : Web Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30634
in ADHESIVES & SEALANTS INDUSTRY (ASI) > Vol. 25, N° 4 (04/2018) . - p .38-41[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19885 - Périodique Bibliothèque principale Documentaires Disponible Converting every opportunity into success / Charlie Braham in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 21, N° 10 (10/2014)
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Titre : Converting every opportunity into success : Knowing the basics of converting is helpful when choosing the best adhesive for an application Type de document : texte imprimé Auteurs : Charlie Braham, Auteur Année de publication : 2014 Langues : Américain (ame) Catégories : Adhésifs -- Emballages
Adhésifs sensibles à la pression
Etiquettes
Films adhésifs
Rubans adhésifsIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : Choosing the right adhesive for a specific application is not always simple. Many articles have been devoted to discussing the topic, often focusing on how the end use of a given pressure-sensitive adhesive (PSA) product should play into the decisions. However, these articles often overlook a crucial step in the production process that can also affect PSA performance: converting. En ligne : http://www.adhesivesmag.com/articles/93287-selecting-adhesives-converting-every- [...] Format de la ressource électronique : Web Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24347
in ADHESIVES & SEALANTS INDUSTRY (ASI) > Vol. 21, N° 10 (10/2014)[article]Exemplaires
Code-barres Cote Support Localisation Section Disponibilité aucun exemplaire Developing pressure-sensitive adhesives for low-temperature applications / Alejandro C. Esquivel de la Garza in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 21, N° 7 (07/2014)
[article]
Titre : Developing pressure-sensitive adhesives for low-temperature applications Type de document : texte imprimé Auteurs : Alejandro C. Esquivel de la Garza, Auteur Année de publication : 2014 Langues : Américain (ame) Catégories : Adhésifs -- Emballages
Adhésifs sensibles à la pression
Copolymère styrène butadiène styrène
Copolymère styrène isoprène styrène
Etiquettes
Rubans adhésifs
Transition vitreuseIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : FINAT defines low-temperature adhesion as the ability of pressure-sensitive coated material to adhere at temperatures below 5°C. Today, many applications require adhesion that must be maintained at temperatures of -25°C or lower.
One of the main characteristics of pressure-sensitive adhesives (PSAs) is their viscoelastic character, which allows optimal mobility for wetting substrate surfaces in order to bond and obtain maximal adhesion, while absorbing energy as viscoelastic deformation to maintain an effective bonding. Viscoelastic character of an adhesive is given by the elastomeric polymer present in its formulation.
PSAs used in applications like tapes and labels for frozen food packaging and other applications in cold environments require special attention for the ingredients selection and, more specifically, in the polymer selection. At temperatures below the glass-transition temperature (Tg), a polymer has a brittle consistency and loses its deformation capacity. Consequently, an adhesive made with that polymer loses its mobility and elastomeric capacity to maintain the adhesion. It is therefore important to select a polymer that will adequately maintain its elastomeric characteristics at reduced temperatures; this is a low-Tg polymer.En ligne : http://www.adhesivesmag.com/articles/93037-developing-pressure-sensitive-adhesiv [...] Format de la ressource électronique : Web Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24308
in ADHESIVES & SEALANTS INDUSTRY (ASI) > Vol. 21, N° 7 (07/2014)[article]Exemplaires
Code-barres Cote Support Localisation Section Disponibilité aucun exemplaire Development of bacterial cellulose film coated with mixed colorimetric indicator for tracking the freshness/spoilage of ready-to-cook idli batter / P. S. Gaikwad in COLORATION TECHNOLOGY, Vol. 138, N° 1 (02/2022)
PermalinkDevelopment of novel gallic acid- and cellulose acetate-coated paper as pH-responsive oxygen indicator for intelligent food packaging / Konala Akhila in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 5 (09/2022)
PermalinkDibenzoate plasticizers in waterborne acrylic PSAs / William D. Arendt in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 21, N° 3 (03/2014)
PermalinkEliminating coater packages with coater-ready PSA emulsions / P. Tkaczuk in ADHESIVES AGE, Vol. 37, N° 10 (09/1994)
PermalinkEmerging acrylic emulsion and UV cure processes for PSA labels / James J. Duis in ADHESIVES AGE, Vol. 41, N° 10 (10/1998)
PermalinkFAQs about pressure-sensitive adhesives (PSAs) in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 21, N° 11 (11/2014)
PermalinkPermalinkPermalinkInnovative label adhesives meet today's packaging demands / Kim Hensley in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 22, N° 5 (05/2015)
PermalinkLignin in the laboratory / Mitchell Dale in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 21, N° 3 (03/2014)
PermalinkPermalinkPermalinkPermalinkN° 108 - 2015 - Emballage (Bulletin de COSMETO VEILLE) / Julien Romestant
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