Fluid-containing pouches with reduced gas exchange and...

Details Fluid-containing pouches with reduced gas exchange and... Fluid-containing pouches with reduced gas exchange and...

B - Operations, Transporting

01

L

B01L 3/00 (2006.01) B01J 19/00 (2006.01) B29C 65/18 (2006.01) B29C 65/82 (2006.01) B32B 37/00 (2006.01) B32B 38/00 (2006.01) B65B 9/04 (2006.01) B65B 51/14 (2006.01) B65B 51/22 (2006.01) B65D 75/32 (2006.01) F16J 15/02 (2006.01)

Patent

CA 2737222

The invention is directed to fluid-containing pouches and to methods for forming fluid-containing pouches. In one embodiment, the invention is to a fluid-containing pouch, comprising first and second opposing sheets, and a fluid (e.g., a calibrant fluid, a reactant fluid or a wash fluid) disposed between the first and second opposing sheets. The first sheet and the second sheet have a substantially liquid and gas impermeable perimeter seal. The sheets may be sealed, for example, by one or more of heat crimping, pressure crimping, heat and pressure crimping, ultrasonic welding, metal-to-metal welding or laser welding. Fluid-containing pouches sealed according to the disclosed methods and apparatuses show substantially improvement in terms of reduced gas exchange, notably CO2 pressurization levels.

L'invention porte sur des poches contenant du fluide et sur des procédés de formation de poches contenant du fluide. Dans un mode de réalisation, l'invention porte sur une poche contenant du fluide, comprenant des première et seconde feuilles opposées, et un fluide (par exemple, un fluide étalonnant, un fluide réactif ou un fluide de lavage) disposé entre les première et seconde feuilles opposées. La première feuille et la seconde feuille ont un joint périphérique sensiblement imperméable aux liquides et aux gaz. Les feuilles peuvent être scellées, par exemple, par une ou plusieurs techniques parmi le sertissage thermique, le sertissage sous pression, le sertissage thermique et sous pression, le soudage ultrasonore, le soudage métal à métal ou le soudage au laser. Les poches contenant du fluide scellées conformément aux procédés et appareils décrits montrent une amélioration importante en termes d'échange de gaz réduit, notamment de taux de pressurisation du CO2.

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