| Titre : |
A comparison of spray guns |
| Type de document : |
texte imprimé |
| Auteurs : |
S. Mannouch, Auteur |
| Année de publication : |
2002 |
| Article en page(s) : |
p. 49-53 |
| Langues : |
Anglais (eng) |
| Catégories : |
Cuirs et peaux -- Finition
Système de pulvérisation (technologie)
Taille des gouttelettes
Vaporisateurs
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
The spray finishing operation for leather is driven by three main factors:
The quality of finish
This is controlled by the method used for atomisation, as this dictates both the projected droplet size and the velocity at which it strikes the leather surface.
The speed of operation
This is controlled by the fluid flow. In turn this has consequences on the droplet size and transfer efficiency.
The efficiency of spray finishing
The efficiency of the operation influences the cost on a day-to-day basis, together with : the initial investment in the spray guns and their fluid supply system, energy requirement, maintenance and replacement of parts subject to wear, down-time taken for that maintenance and the time for set-up procedure prior to spraying.
Quality, speed and efficiency are closely linked together, and no single factor can be altered without affecting the other two. Concentrate on any one of the items in this "finishing triangle" and the operation will start to suffer problems in the other two key areas.
Two of the main types of spraying equipment are available - High Volume Low Pressure (HVLP) and Airless - and both have different starting points within this triangle. |
| Note de contenu : |
- Conventional spray systems and the atomisation process
- HVLP and compliant spray systems
- Airless spray systems
- Droplet size, penetration and quality of finish
- HVLP/Compliant or Airless ?
- Panel I : Systems for the fluid sypply
- Fig. 1 : Atomisation
- Fig. 2 : Bounce Back
- Fig. 3 : Typical Droplet size |
| En ligne : |
https://drive.google.com/file/d/1GrTZQ6q9vVpXnRhGAL-l7r5aC2dZYVwE/view?usp=drive [...] |
| Format de la ressource électronique : |
pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32221 |
in WORLD LEATHER > Vol. 15, N° 3 (05/2002) . - p. 49-53
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