A bag for steam cooking food prepackaged in the bag by microwave oven

Abstract

A bag for steam cooking food prepackaged in the bag by a microwave oven, comprising a bag body, wherein: two rows of male strips and female grooves meshed with each other are arranged at opposite positions in the bag body; the male strips and the female grooves are connected onto the bag body through two thin films respectively; at least one exhaust hole is formed in the thin film either between the male strips or between the female grooves or between one male strip and one female groove at one side of the bag body; and a tear-off strip is superposed on the bag body above the exhaust hole, so that the internal exhaust hole can be exposed out after the tear-off strip is torn open.

1 . (canceled) 
     
     
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         11 . A bag for steam cooking food prepackaged in the bag by a microwave oven, comprising a bag body, wherein: two rows of male strips and female grooves meshed with each other are arranged at opposite positions in the bag body; the male strips and the female grooves are connected onto the bag body through two thin films respectively; at least one exhaust hole is formed in the thin film either between the male strips or between the female grooves or between one male strip and one female groove at one side of the bag body; and a tear-off strip is superposed on the bag body above the exhaust hole, so that the internal exhaust hole can be exposed out after the tear-off strip is torn open. 
     
     
         12 . The bag in  claim 11 , wherein: the open strength of a zipper above the exhaust hole is 80 N/50 mm; and the open strength of the zipper below the exhaust hole is 30 N/50 mm. 
     
     
         13 . The bag in  claim 11 , wherein one end of the tear-off strip is subjected to heat-sealing and reinforcement treatment. 
     
     
         14 . The bag in  claim 12 , wherein one end of the tear-off strip is subjected to heat-sealing and reinforcement treatment. 
     
     
         15 . The bag in  claim 11 , wherein the male strips and the female grooves are sealed with heat or glued or ultrasonically adhered on the bag body through the two thin films respectively. 
     
     
         16 . The bag in  claim 12 , wherein the male strips and the female grooves are sealed with heat or glued or ultrasonically adhered on the bag body through the two thin films respectively. 
     
     
         17 . The bag in  claim 13 , wherein the tear-off strip is made of a low-temperature heat-sealing material. 
     
     
         18 . The bag in  claim 14 , wherein the tear-off strip is made of a low-temperature heat-sealing material. 
     
     
         19 . The bag in  claim 13 , wherein the bag body at the upper parts of the zippers is provided with a laser line; and a pull-apart opening is formed at the tail end of the laser line. 
     
     
         20 . The bag in  claim 14 , wherein the bag body at the upper parts of the zippers is provided with a laser line; and a pull-apart opening is formed at the tail end of the laser line. 
     
     
         21 . A bag for steam cooking food prepackaged in the bag by a microwave oven, comprising a bag body, wherein two rows of male strips and female grooves meshed with each other are arranged at opposite positions in the bag body; the male strips and the female grooves are connected onto the bag body through two thin films respectively; at least one exhaust hole is formed in the thin film either between the male strips or between the female grooves or between one male strip and one female groove at one side of the bag body; two laser lines are formed in the positions at two sides of the exhaust hole and on the bag body above the exhaust hole; and the bag body in the middle parts of the laser lines can be torn open along the laser lines to expose out the internal exhaust hole. 
     
     
         22 . The bag in  claim 21 , wherein the open strength of the zipper above the exhaust hole is 80 N/50 mm; and the open strength of the zipper below the exhaust hole is 30 N/50 mm. 
     
     
         23 . The bag in  claim 21 , wherein the male strips and the female grooves are sealed with heat or glued or ultrasonically adhered on the bag body through the two thin films respectively. 
     
     
         24 . The bag in  claim 22 , wherein the male strips and the female grooves are sealed with heat or glued or ultrasonically adhered on the bag body through the two thin films respectively. 
     
     
         25 . The bag in  claim 13 , wherein: the bag body at the upper parts of the zippers is provided with the laser line; and the pull-apart opening is formed at the tail end of the laser line. 
     
     
         26 . The bag in  claim 14 , wherein: the bag body at the upper parts of the zippers is provided with the laser line; and the pull-apart opening is formed at the tail end of the laser line.