B - Operations – Transporting – 65 – B
Patent
B - Operations, Transporting
65
B
226/66, 154/71.0
B65B 51/10 (2006.01) B31B 1/64 (2006.01)
Patent
CA 2037354
A method for sealing a retort container comprises the steps of heat-sealing an opening of a retort container after charging contents into the container so that a line-seal having a width ranging from 0.5 to 2.5 mm is formed to thus seal the container and then performing knurled sealing at a portion including the line-seal. The sealing method can provide a container having sufficient seal strength and does not spoil the beautiful appearance of the flange portion of the container even if contents thereof remain in the flanged portion or the like. Moreover, the method does not cause foaming in the sealed regions at all and it is not necessary to perform the sealing treatment under substantially severe conditions to prevent the occurrence of the foaming and, therefore, the method can provide containers having a sealed portion easily peelable.
Cette invention concerne une méthode de scellement d'un contenant alimentaire stérilisé en autoclave, qui comprend le thermoscellage du contenant après son remplissage de manière à former un joint linéaire de largeur comprise entre 0,5 et 2,5 mm, suivi d'une opération de scellement à la molette d'une zone comprenant ledit joint linéaire. Cette méthode produit un contenant à joint scellé d'une résistance suffisante et d'aspect agréable même lorsque le contenu s'est infiltré, à la stérilisation en autoclave, dans le rebord scellé de celui-ci. De plus, cette méthode ne génère pas de moussage dans la zone scellée et il n'est pas nécessaire de prendre des précautions rigoureuses pour éviter ce phénomène. Ainsi, on obtient un contenant dont la partie scellée s'ouvre facilement par simple pelage.
Okamoto Hidefumi
Sengoku Koji
House Food Industrial Co. Ltd.
Sim & Mcburney
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