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packaging bag

A technology of packaging bags and sealing parts, which is applied in the field of packaging bags, can solve the problems of inability to grasp the cooking time, reduction of food taste, loss of moisture, etc.

Active Publication Date: 2018-10-12
KYORAKU CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the packaging bag disclosed in Patent Document 1 is not equipped with a member for notifying that the packaging bag has been opened, so it is necessary to confirm that the packaging bag has been opened by visual inspection.
Therefore, for example, when using a microwave oven to heat and cook the contents of the packaging bag, if you leave the microwave oven or do other things without seeing that the packaging bag has been opened, the contents will be overheated after the packaging bag is opened. Loss of moisture reduces the taste of food
In addition, depending on the type of contents, there are also contents that can be heated for a certain period of time after opening the packaging bag to improve the taste of the food by using the effect of stewing, but it is impossible to know if the packaging bag has not been opened. Appropriate cooking time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0053] This embodiment relates to an improvement of a packaging bag that emits sound when steam is discharged.

[0054] In the above-mentioned Patent Document 2 exemplified in the prior art, the peripheral portion of the vibrating plate is cut by punching or the like, the vibrating plate vibrates vigorously due to steam, and the vapor flows from the peripheral portion of the vibrating plate. Discharging to the outside requires processing the unsealed part itself.

[0055] Therefore, for the packaging bag of Patent Document 2 described above, it is necessary to heat seal the packaging material constituting the packaging bag to form an unsealed portion, and then perform punching processing on the unsealed portion to form a vibrating plate, or pre-determining the packaging material The unsealed portion is subjected to punching processing to form the vibrating element, and in order to constitute a mechanism for emitting sound, other processing other than the process of heat sealing the...

no. 1 Embodiment approach example 1

[0064]

[0065] First, refer to Figure 1 ~ Figure 3 A configuration example of the packaging bag 100 of this embodiment will be described. figure 1 It is a diagram showing a configuration example of the packaging bag 100 of this embodiment, figure 1 (A) is a perspective view of the packaging bag 100 before the opening 4 is sealed, figure 1 (B) is a perspective view of the packaging bag 100 in which the content D is accommodated in the packaging bag 100 and the opening 4 is heat-sealed to seal the packaging bag 100. figure 2 Yes means set at figure 1 A diagram of a configuration example of the steam-exhausting sealed portion 7 and the unsealed portion 9 (9a, 9b) of the film raised portion 6 shown. image 3 Means figure 1 The configuration example of the packaging bag 100 in a state where the packaging bag 100 is heated and expanded by a microwave oven shown in (b), image 3 (A) is a side view of the packaging bag 100, image 3 (B) is a diagram showing a state in which the fro...

no. 1 Embodiment approach example 2

[0098] Next, Example 2 of the first embodiment will be described.

[0099] Such as Image 6 As shown, the strip-shaped end seal portion 80a of Example 2 of the first embodiment is configured to be tapered and configured to follow the starting point 71 of the self-expelling vapor seal portion 7 toward the end portion in the longitudinal direction of the film raised portion 6 As a result, the width γ of the strip-shaped end seal portion 80a becomes wider (γ1<γ2).

[0100] As a result, when the space partitioned by the steam exhaust sealing portion 7 of the film raised portion 6, the strip-shaped end seal portion 80a, and the strip-shaped side seal portion 8b expands, it is compared with Example 1 of the first embodiment , The force can be locally applied to the portion of the front end 70 of the steam exhaust seal 7. As a result, compared with Example 1 of the first embodiment, it is possible to easily cause peeling of the steam exhaust sealing portion 7.

[0101] In addition, as the...

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PUM

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Abstract

The present invention provides a packaging bag with improvements regarding steam release. The packaging bag is characterized in that the packaging bag has a sealing portion (8a) formed by sealing the peripheral portion of the film constituting the upper surface portion and the peripheral portion of the film constituting the lower surface portion The packaging bag has a part of the sealing part (8a) protruding inward in a curved shape and a steam release sealing part (7), and the steam releasing sealing part (7) is at least inward than the sealing part (8a). The sealing width of the front end is different from the sealing width of other parts. The sealing width of the front end is narrow. When the packaging bag expands and the steam release sealing part (7) is peeled off, other parts remain, and the remaining other parts form a self-sealing The edge portion (7a) of the portion (8a) protrudes inwardly.

Description

Technical field [0001] The present invention relates to a packaging bag: when a microwave oven or the like is used to heat a packaging bag filled with contents such as retort food consisting of liquid, solid or a mixture thereof, the packaging bag opens under the action of vapor pressure, Therefore, the water vapor generated inside the packaging bag can be discharged to the outside. Background technique [0002] When a packaging bag filled with contents such as retort food is heated by a microwave oven or the like, with the heating, gas such as water vapor is generated from the contents, and the pressure inside the packaging bag rises, which may rupture the packaging bag. Disperse the contents. [0003] Therefore, there are packaging bags having a structure for avoiding pressure rise inside the packaging bag (for example, refer to Patent Document 1: Japanese Patent Application Publication No. 2002-80072, Patent Document 2: Japanese Patent Application Publication No. 2005-82172, Pa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65D81/34B65D33/01
CPCB65D77/225B65D81/3461B65D75/525B65D33/01B65D81/34
Inventor 原正人槌谷尚
Owner KYORAKU CO LTD