EP 0421902 B1 19930721 - VACUUM DRYING PROCESS FOR VARIOUS ARTICLES, AND APPARATUS FOR CARRYING OUT THE PROCESS
Title (en)
VACUUM DRYING PROCESS FOR VARIOUS ARTICLES, AND APPARATUS FOR CARRYING OUT THE PROCESS
Publication
Application
Priority
FR 8913312 A 19891006
Abstract (en)
[origin: EP0421902A1] Drying of articles. The invention relates to a drying process for articles which consists in: a) introducing the articles to be dried into the enclosure which is then hermetically closed, b) raising the internal temperature of the enclosure to a value of between 50 and 90 DEG C, c) stabilising the internal temperature of the enclosure with that of the articles by arranging a delay stage of a duration of at least one minute, d) then submitting the interior of the hermetically sealed enclosure to a partial vacuum of between - 0.5 and - 1 bar for a duration of between 30 seconds and 3 minutes, while ensuring, inside the enclosure, forced recycling of the air on the articles to be dried, e) resubmitting the interior of the enclosure to ambient atmospheric pressure. Application to the partial-vacuum drying process. <IMAGE>
IPC 1-7
IPC 8 full level
F26B 5/04 (2006.01)
CPC (source: EP)
F26B 5/04 (2013.01)
Designated contracting state (EPC)
CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0421902 A1 19910410; EP 0421902 B1 19930721; DE 69002298 D1 19930826; DE 69002298 T2 19940210; FR 2652888 A1 19910412; FR 2652888 B1 19950203
DOCDB simple family (application)
EP 90420432 A 19901008; DE 69002298 T 19901008; FR 8913312 A 19891006