Pressure sterilizing after-treatment method for flexible package

A technology of autoclave sterilization and flexible packaging, which is applied in the fields of food science, food preservation, application, etc., to shorten the production cycle, ensure the appearance, and ensure the production efficiency and product quality.

Inactive Publication Date: 2002-01-30
徐寿海 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To solve the problem of rapid recovery of transparency, it is necessary to try to dry in time to remove water vapor

Method used

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  • Pressure sterilizing after-treatment method for flexible package
  • Pressure sterilizing after-treatment method for flexible package

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1, a microwave generator for soft packaging drying, the container material is made of stainless steel, the resonant cavity is made of anti-rust aluminum, the surface of the anti-rust aluminum is polished, anodized, and the microwave frequency is 2450±50MHz, and the continuous wave output power is 20KW. 7×10 -5 Watts / cubic meter, hot-pressed, infiltrated with steam, the color turns white and loses transparency. The flexible packaging is irradiated with microwave energy for 2 minutes, and then air-cooled after taking it out to restore the best transparency.

Embodiment 2

[0018] Embodiment 2. In the above embodiment, the power density is 8×10 -5 Watts / cubic meter, hot-pressed, infiltrated with steam, the color turns white and loses transparency. The flexible packaging is irradiated with microwave energy for 1 minute, and then air-cooled after taking it out to restore the best transparency.

Embodiment 3

[0019] Embodiment three, in embodiment one, adopt power density to be 1×10 -5 Watts / cubic meter, hot-pressed, infiltrated with steam, the color turns white and loses transparency. The flexible packaging is irradiated with microwave energy for 8 minutes, and then air-cooled after taking it out to restore the best transparency.

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PUM

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Abstract

The method for treating flexible package whitened after thermal pressure sterilization is characterized by that microwave energy whose power density is 1X10 to the minus fifth power -8X10 to the minus fifth power is adopted to irradiate for 8-1 min., then makes the flexible package cool, and the frequency of the above-mentioned microwave is 2400-2500 MHz or 890-940 MHz or 5725-5875 MHz or 22375-22625 MHz. Said invention utilizes microwave energy to make irradiation to make whitened non-transparent flexibly package can quickly dry and restore to transparent and original beautiful state, so that it can greatly shorten production preroid, and is favourable for inspection of leakage and clearness, and can ensure production efficiency and product quality.

Description

technical field [0001] The invention relates to a post-treatment method for sterilization using liquid or steam, in particular to a treatment method for restoring transparency after the soft package is infiltrated into steam and becomes white and loses transparency after hot-pressing sterilization. Background technique [0002] Soft-packaged medical liquid and various soft-packaged liquid beverages, under the hot-pressing conditions during the sterilization process, the liquid vapor inside and outside the soft-package will permeate it from both inside and outside, making the color of the soft-package white and lose its transparency. In the future, in addition to losing the beauty of the finished product, it will also affect the inspection of clarity. The remedial method adopted in the prior art is direct heating and baking for 1-2 hours, but it can only restore about 80% of the transparency, and the old feeling is heavy, and the baking time is too long, the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L3/01
Inventor 徐寿海韩少川
Owner 徐寿海
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