Colour prediction in wet state - an useful tool for batch correction / Priyanka Dutta in PAINTINDIA, Vol. LXIX, N° 8 (08/2019)  

[article]  inPAINTINDIA > Vol. LXIX, N° 8 (08/2019) . - p. 55-60 + p. 80 Titre : Colour prediction in wet state - an useful tool for batch correction Type de document : texte imprimé Auteurs : Priyanka Dutta, Auteur ; Rajeswar Samanta, Auteur ; Jaydeb Gayen, Auteur Année de publication : 2019 Article en page(s) : p. 55-60 + p. 80 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Couleur -- Analyse Evaluation Prévision, Théorie de la Revêtements -- Coloration:Peinture -- Coloration Index. décimale : 667.9 Revêtements et enduits Résumé : Shade matching or tinting involves a time consuming process during paint manufacturing. In conventional approach, instrumental colour matching technique is used on dry paint film. Here, a novel technique has been used for prediction of desired colour from liquid paint sample directly instead of dried shade panels. In this technique, different mathematical concepts like matrices, determinants and three dimension Cartesian coordinate geometry have been employed to correlate a relation between shades of liquid paint and corresponding dried paint film and a simple empirical formula has been derived to predict the unknown shade. The liquid standard shade sample and nonstandard batch sample are taken in two identical transparent glass tubes, and with the help of three dimensional Cartesian coordinate geometry, a close relation of shade between liquid paint sample and dry painted panel has been established. This technique has also been used successfully for batch correction with respect to shade variation. Such unique colour matching technique has significant advantages over reduction of batch process time which has a direct impact on productivity and cost of fiNished paint. Note de contenu : - EXPERIMENTAL : Preparation of paints & panels - Evaluation - RESULTS AND DISCUSSION : Chromaticity - Mathematics used in establishing relation between dry and liquid system - Batch correction En ligne : https://drive.google.com/file/d/1fhE_DAU-bTb_4jIjhI7WHEdEcrzB2Zq3/view?usp=share [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33102 [article]

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Process improvement with 'right First time' (RFT) approach / Jaydeb Gayen in PAINTINDIA, Vol. LVII, N° 4 (04/2007)

[article]  inPAINTINDIA > Vol. LVII, N° 4 (04/2007) . - p. 83-89 Titre : Process improvement with 'right First time' (RFT) approach Type de document : texte imprimé Auteurs : Jaydeb Gayen, Auteur Année de publication : 2007 Article en page(s) : p. 83-89 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bon du premier coup (Méthode) Production -- Gestion Technique de la production Index. décimale : 667.9 Revêtements et enduits Résumé : With tighter competition in every industry, delivering just "good" or "defect free" products and service won't guarantee success unless backed by consistency and on-line-delivery. By focusing the process design and value-adding activities, cost cutting can be achieved and the change can contribute to major improvement in on-time delivery. Although improvement to the internal processes is of no interest to the customer, however, enhancing manufacturing capability through the specialized process is the real key to competitiveness. Many manufacturing processes have already been through intense quality scrutiny as routine method is proved to yield nothing and hence it will be looked at some compelling reasons in this article why manufacturing operations can benefit from RFT discipline and how to adopt the approach to meet unique challenge not only to improve the performance but to improve the improvement. Right First Time is defined as the process wherein the batch is released in one go i.e. without any tints or adjustments. Like many systems it may seem impracticable, however, can deliver immensely if implemented meticulously in the plant and has been the cynosure of all eyes along with 'six sigma' and 55' in some of the multinational companies where its benefits are being exploited. The approach is very simple and talks about strict control right from raw materials to process controls and is discussed in detail in this article. Note de contenu : - Definig key objective and requirements - Identifying core Process - Measure current performance - Analyze and implement improvements - Sustenance Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11473 [article]

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