Unlock instant, AI-driven research and patent intelligence for your innovation.
High-temperature sterilization method of food packaging box
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A food packaging box and high-temperature sterilization technology, which is applied in the field of food packaging, can solve the problems of deformation, high price and bursting of the packaging box, and achieves the effects of low cost and simple operation.
Inactive Publication Date: 2012-06-20
NANCHANG UNIV
View PDF0 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
However, there are still some difficulties in using plastics as nutrient-rich food packaging, because nutrient-rich food must be sterilized at high temperature in order to meet the requirements of preservation, and during high-temperature sterilization, if it is non-vacuum packaging, because there is a certain amount of air in the packaged box, Then, when sterilizing at high temperature (≥110°C), the packaging box may be deformed or even burst due to the rapid expansion of the food and air in the tank.
And if vacuum packaging is used, on the one hand, there is no corresponding equipment available at present; on the other hand, even if the equipment that can be used for vacuum packaging in plastic boxes is developed, the price will be relatively high
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0014] As shown in the drawings, the food packaging box of this embodiment is composed of bowl body 1, bowl cover 5 and sealing ring 4. Bowl cover 5 is provided with a one-way valve, and the one-way valve is composed of air outlet 6, spring 7, silicon The rubber stopper 8 and the air outlet pipe 9 are composed, the air outlet pipe 9 is inserted in the air outlet hole 6, the spring 7 and the silicon rubber plug 8 are placed in the air outlet pipe 9 from top to bottom, and the bowl cover 5 is buckled with the bowl body 1 through the press button 3 Tight, and sealed by sealing ring 4.
Embodiment 2
[0016] After fastening the packing box full of nutritious food, place it in a high-temperature sterilizing kettle, pass steam to 1atm (gauge pressure), and treat it at the required sterilization temperature of 121°C for 20 minutes. When the sterilization is completed, open the steam intake valve, so that the pressure in the autoclave reaches 1.1atm instantaneously, the one-way valve of the packaging box is closed, then the compressed air is introduced, and the air release valve of the autoclave is opened at the same time to keep the pressure in the autoclave at 1atm. When the temperature in the autoclave is ≤100°C, feed cold water while keeping the pressure inside the autoclave at 0.4 atm, and continue to introduce cold water until the temperature in the autoclave is ≤70°C, stop feeding cold water and open the vent valve to release the pressure until the gauge pressure If the temperature is zero, open the autoclave to take out the sterilized finished product.
Embodiment 3
[0018] For some foods with lower sterilization requirements (such as drunken fish, distilled fish lees, slightly acidic food, etc.), the sterilization temperature can be lowered to 110°C. The specific implementation is to fasten the packaging box full of food, put it in a high-temperature sterilizing kettle, feed steam to 0.5atm (gauge pressure), and treat it at 110°C for 30 minutes. When the sterilization is over, open the steam inlet valve , so that the pressure in the autoclave reaches 0.6atm instantaneously, the one-way valve of the packaging box is closed, then the compressed air is introduced, and the air release valve of the autoclave is opened at the same time, the pressure in the autoclave is kept at 0.5atm, and the operation is continued. When the temperature in the autoclave is less than or equal to 90°C, feed cold water while maintaining the pressure in the autoclave at 0.4atm, and continue to introduce cold water until the temperature in the autoclave is less than ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Login to View More
Abstract
The invention relates to a food packaging box and a high-temperature sterilization method, the packaging box comprises a bowl body, a bowl cover and a seal ring, wherein an one-way valve is arranged on the bowl cover; the one-way valve comprises an air outlet hole, a spring, a silicone rubber plug and an air outlet pipe; the air outlet pipe is inserted in the air outlet hole; the spring and the silicone rubber plug are sequentially placed in the air outlet pipe from top to bottom; the bowl cover is buckled with the bowl body through a pressing buckle; and the seal ring is used for sealing. After the packaging box is buckled, the packaging box is placed in a high-temperature sterilization kettle, steam is introduced for sterilization, the instantaneous pressure in the sterilization kettle is improved for closing the one-way valve of the packaging box, compressed air is introduced, an air release valve of the sterilization kettle is opened, a certain pressure in the sterilization kettleis kept, the temperature is reduced, cold water is introduced, the pressure in the sterilization kettle is kept, the cold water is introduced for reducing the temperature, the introduction of the cold water is stopped, and the air release valve is opened for realizing complete pressure relief. The food packaging box can enable food which is rich in nutrition to turn from non-vacuum cover sealing to vacuum packaging, realize thorough sterilization and preserve the food for a long time; and the food packaging box does not need to perform artificial cover sealing, does not need equipment and hasthe advantages of being simple to operate and being low in cost.
Description
technical field [0001] The invention belongs to the field of food packaging, in particular to a food packaging box. technical background [0002] Preservation of nutrient-rich foods (such as livestock, poultry, aquatic products, milk foods, and soup foods) is of great significance in the food industry. Traditional nutrient-rich foods are usually packaged in tin cans and vacuum-sealed. Plastic packaging has the advantages of convenient packaging, low cost, light weight and easy opening, and can be reused at home, etc., and is widely used in the food industry. However, there are still some difficulties in using plastics as nutrient-rich food packaging, because nutrient-rich food must be sterilized at high temperature in order to meet the requirements of preservation, and during high-temperature sterilization, if it is non-vacuum packaging, because there is a certain amount of air in the packaged box, Then, when sterilizing at high temperature (≥110°C), the packaging box may b...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More