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Water based finishes / John J. McCarthy in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXII (Année 1977)
[article]
Titre : Water based finishes Type de document : texte imprimé Auteurs : John J. McCarthy, Auteur Année de publication : 1977 Article en page(s) : p. 89-98 Langues : Américain (ame) Catégories : Colorants
Cuirs et peaux -- Finition
Cuirs et peaux -- Teinture
Emulsions
Liants
Matériaux -- Imprégnation
Pigments
Polymères
Primaire (revêtement)
Revêtements en phase aqueuse
Revêtements organiquesIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : As is started in your program summary, new finishing techniques are constantly in continuous development. In addition, new finishing techniques are being used outside of the leather industry, which, at the present time, only have limited uses in leather finishing. I firmly believe, however, that as these new techniques are improved and modified they will take a strong position in leather finishing. Cast coatings, transfer coatings, lamination of urethane fims and foams, whether they be mecanical or chemical, have already found their place in finishing roll goods, in a continuous operation on poromerics, non-wovens, and fabrics. More work is required to adapt these systems to piece goods, such as side leather or splits, to overcome waste due to cutting and trimming, and to eliminate multile handling operations. Note de contenu : - Impregnations
- Stain coats and dyes
- Base coats : Resins - Binders - Pigments - dyes - Auxiliaries
- Top coats : A) Synthetic resin top coats - B) Protein top coats - C) Water dilutable lacquer emulsion top coatsEn ligne : https://drive.google.com/file/d/1-fjxSAqQnYR6NA7Fh6F1Zts5Eep5U-Mc/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38258
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXII (Année 1977) . - p. 89-98[article]Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 008511 - Périodique Archives Documentaires Exclu du prêt Water hardness as an important parameter of the fatliquoring process / Krzysztof Smiechowski in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 101, N° 6 (11-12/2017)
[article]
Titre : Water hardness as an important parameter of the fatliquoring process Type de document : texte imprimé Auteurs : Krzysztof Smiechowski, Auteur ; Malgorzata Kowalska, Auteur ; Jan Zarlok, Auteur ; M. Lipiec, Auteur Année de publication : 2017 Article en page(s) : p. 296-302 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cuirs et peaux -- Analyse
Douceur (toucher)
Eau dure
Emulsions
Emulsions -- Stabilité
Epaisseur -- Mesure
Lixiviation
Produits de nourriture du cuir
Taille des particulesIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The paper presents studies on the influence of selected parameters of water used in fatliquoring. Water of varying hardness (quantifies of calcium, magnesium, iron compounds and of chlorides) was used in the process. Properties of fatliquoring emulsions containing waters of different hardness were determined. It was noted that emulsions were less stable in the presence of eiectrolytes. Generally, the average particle size of prepared fatliquoring emulsions increased if the water phase contained : calcium, magnesium, iron compounds and chlorides. The presented studies on the affects on tanned hides confirmed the desirability of using low hardness water without iron and chlorides. Note de contenu : - Preparation of fatliquoring
- Stablity of fatliquoring emulsions
- Resistance of fatliquoring emulsions to electrolytes
- Determination of fatliquoring emulsion particle size
- Dispersion index
- Leather fatliquoring process
- Determination of fat content in bath after fatliquoring
- Determination of fat content in leather
- Determination of leather softness according to PH-EN ISO 17235
- Determination of leather sample thickness as per PN-EN ISO 2589
- TABLES : 1. Classification of water for tanning according to BASF - 2. Characteristic of water used to prepare fatliquoring emulsions - Methodology of wet-blue fatliquoring - 4. Stability of 10% emulsion and resistance to electrolytes (Nacl and chromium agent) - 5. Parameters of particle size distribution for fatliquoring emulsions at 20°C and 60°C - 6. Characteristics of the baths after fatliquoring - 7. Thickness and softness of leather samples tested - 8. Free fat content in leather
- FIGURES : 1. Particle size distribution of emulsions Em (A)? Et (B), Ebt(C) determined at 20°C - 2. Particle size distribution of emulsions Em (A)? Et (B), Ebt(C) determined at 60°C. The emulsions produced at the two different temperatures (20 and 60°C) with distilled water (free from magnesium, calcium and iron compounds) were observed to have lower average particle sizes. In summary, a greater temperature and increased presence of magnesium, calcium and iron cause the average particle size to increase - 4. Impact of temperature, hardness and presence of iron compounds on average particle sizeEn ligne : https://drive.google.com/file/d/1LJd8IEpiWFxeHGbbtdZ77uC1JTs28BK_/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29668
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 101, N° 6 (11-12/2017) . - p. 296-302[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19446 - Périodique Bibliothèque principale Documentaires Disponible Waterborne polyuréthane dispersions / John Argyropoulos in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 200, N° 4547 (04/2010)
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Titre : Waterborne polyuréthane dispersions Type de document : texte imprimé Auteurs : John Argyropoulos, Auteur ; Bedri Erdem, Auteur ; Nanjundiah Kumar, Auteur ; Suresh Subramonian, Auteur ; Andrew Trapani, Auteur Année de publication : 2010 Article en page(s) : p. 19-20 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bois -- Finition
Dispersions et suspensions
Emulsions
Polymères en émulsion
Polyols
PolyuréthanesIndex. décimale : 667.9 Revêtements et enduits Résumé : Development of waterborne dispersions based on natural oil polyols for wood coating applications. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10078
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 200, N° 4547 (04/2010) . - p. 19-20[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012360 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Wax emulsions for coatings Type de document : texte imprimé Auteurs : Harish Agrawal, Auteur ; Nimish Agrawal, Auteur Année de publication : 2021 Article en page(s) : p. 80-94 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cires
Emulsions
Revêtements (produits chimiques)Index. décimale : 665.1 Cires Résumé : A wax emulsion is a stable mixture of one or more waxes in water. Waxes and water are normally immiscible but can be brought together stably by the use of surfactants and a clever preparation process. Strictly speaking a wax emulsion should be called a wax dispersion since the wax is solid at room temperature. However, because the preparation takes place above the melting point of the wax, the actual process is called emulsification, hence the name wax emulsion.
Wax Emulsions or Wax dispersions are widely used for optimizing the final performance of coating & inks by efficiently controlling surface properties, even if used in relatively small quantifies < 5%, - waxes enhance properties such as water repellency, slip, abrasion resistance anti-blocking and other critical properties in paints, coating, leather, wood coatings, foundries and ink areas.Note de contenu : - ORIGIN OF WAXES : Paraffin wax - PE wax - Characteristics & features (paraffin & PE wax) - OPE wax -oxidized polyethylene wax
- WAX EMULSION & WAX DISPERSION : Formation of wax emulsions depends upon the particle size and they are generally classified as - How emulsion is formed - Types of emulsions - Mechanisms of emulsification - How to stabilize wax emulsion - General specification for wax emulsions - Factors to be considered while formulating wax emulsions - Determination of the type of wax in a formulation - Typical wax effects in the formulations
- MECHANISM OF ACTION OF WAX EMULSIONS : The blooming mechanism - Softness in waxes - Molten blooming - The ball bearing mechanisms - Benefits of wax emulsions - Anti-blocking - Slip & mobility - Abrasion resistance - Water repellency - Touch & feel effect - Matting agent - Black heel marks - Types of wax emulsions
- APPLICATIONS OF WAX EMULSIONS : Architectural coatings - Inks application - Wood coatings - Concrete coatings - Metal coatings - OPV's & primers - Plastic coatings - Paper, film & foil coatings - Floor polish coatings - Wax emulsions coating on fruit
- Table 1 : Advantages and disadvantages of surfactant type
- Table 2 : Overview of the main waxes used in industrial application
- Table 3 : Typical wax effectsEn ligne : https://drive.google.com/file/d/1ef2eow8-wBfUGL3zY9MPjo3rYziKblaa/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35239
in PAINTINDIA > Vol. LXXI, N° 2 (02/2021) . - p. 80-94[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22558 - Périodique Bibliothèque principale Documentaires Disponible