[article]
| Titre : |
Microbial contamination and cross-contamination in paint manufacture : Causes and remedy |
| Type de document : |
texte imprimé |
| Auteurs : |
Sushma Lokhande, Auteur |
| Année de publication : |
2023 |
| Article en page(s) : |
p. 54-62 + 74 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Contamination microbienne
Hygiène du travail
Matières premières
Procédés de fabrication
Revêtements en phase aqueuse:Peinture en phase aqueuse
Revêtements:Peinture
|
| Index. décimale : |
667.6 Peintures |
| Résumé : |
The goal of every chemical manufacturer is to ship a quality product to his customer. One common requirement for waterborne products such as coatings is that the product remains microbiologically stable until used, and in some instances, for some period alter its use (paint films for example). Being aqueous, these products are susceptible to microbial contamination and degradation. Anti-microbial (biocides) are routinel y added to assist with the delivery and maintenance of productqualities so that they meet customer expectations. However, it has long been apparent that even adding an appropriate lab tested anti-microbial to the finished product may not be sufficient to accomplish th is goal due to some unseen challenges at manufacturing level which remain out of scope during product development at lab scale. It is now understood that the product must first, and foremost, be manu factured under a tightly controlled process that includes adequate plant hygiene. Doing so m in im izes the final cost of the product and helps ensure that a quality product is manufactured and delivered.
Contamination and cross-contamination in paint and coatings manufacturing is a serious issue. As, it can occur at any point of the manufacturing cycle — during production, processing, packaging, distribution or storage.
This article also details some of the areas of concem in a "generalized" aqueous product (such as coating) manufacturing scheme. The intention is to highlight those areas that are most likely to cause microbial quality problems so that a plant hygiene program can proactively address them. Regular attention to hygiene at the plant will pay dividende to the manufacturing process of waterborne paints. |
| Note de contenu : |
- Plant hygiene and its importance : Raw materials - Water - Equipment - Cellulosic thickener solution - Mill base - Biocide addition validation & records - Filling line - Packaging material - Storage/transportation of finished gods
- Source water and source water-handling systems - Recycled water and recycled water-handling systems - Recycled raw material or recycled product - Raw material storage and handling systems - Mixing, milling and reaction vessels - Product packaging systems - Product transportation and delivery systems
- Dip slide method - ATP testing method : adenosine triphosphate (ATP) measurement technology |
| En ligne : |
https://drive.google.com/file/d/1QJFNZ7szKYJ9AJ6F9jc0WAAzWA8upbIH/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40397 |
in PAINTINDIA > Vol. LXXIII, N° 9 (09/2023) . - p. 54-62 + 74
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