JP2014108784A - Bag body with fitting tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag body with a fitting tool capable of determining temperature of content stored in the bag body easily.SOLUTION: The bag body with a fitting tool comprises: a bag body 20 for storing content; and a fitting tool 10 attached to an inner surface of the bag body 20. The fitting tool 10 is attached to an opposite inner surfaces of the bag body 20 in a state that it is attached along an edge of an opening 26 formed on the bag body 20 and it has a male side fitting part 13 and a female side fitting part 14 fitting to each other detachably. The color of the fitting tool 10 changes depending on temperature so that change of color of the fitting tool 10 can be determined from outside of the bag body 20.

Description

  The present invention relates to a bag body with a fitting tool.

  In various fields such as food and medicine, a bag body with a fitting tool in which a fitting tool for opening and closing the opening portion is attached to the inner surface near the opening portion of the bag body is widely used. As the fitting tool, for example, a male side fitting part of a protrusion and a female side fitting part detachably fitted to the male side fitting part on each facing surface of a pair of strip-shaped base materials, A fitting provided respectively along the longitudinal direction of these base materials is known (Patent Document 1). In the bag body with the fitting tool, the fitting tool is attached to the inner surface in the vicinity of the opening of the bag body along the edge of the opening, and the male side fitting portion and the female side fitting portion of the fitting tool are provided. By attaching and detaching, the opening of the bag body can be freely opened and closed.

On the other hand, in the field of food, medicine, etc., it is often necessary to control the temperature of contents during storage or use. For example, refrigerated or frozen storage is required at the time of storage, and those that are returned to room temperature when used are used.
In such a case, it is relatively easy to determine the temperature of the contents accommodated in the bag with fittings if the storage time or the time for leaving it at room temperature to return to room temperature is long. However, if these times are not long enough, it is difficult to determine the temperature of the contents. In addition, since the speed of temperature change in the bag body varies depending on the material of the bag body of the bag body with a fitting, it is difficult to immediately determine the temperature of the contents.

JP 2003-160147 A

  This invention provides the bag body with a fitting tool which can judge the temperature of the content accommodated in the bag body easily.

  The bag body with a fitting tool of the present invention has a bag main body for storing contents, and a fitting tool attached to the inner surface of the bag main body, and the fitting tool is formed on the bag main body. A pair of fitting portions that are attached to the opposing inner surfaces of the bag body so as to be along the edge of the opening and that are detachably fitted to each other, and the color of the fitting changes depending on the temperature. The color change of the fitting tool can be determined from the outside of the bag body.

  The bag body with a fitting tool of the present invention can easily determine the temperature of the contents accommodated in the bag body.

It is the front view which showed an example of the bag body with a fitting tool of this invention. It is I-I 'sectional drawing of the bag body with a fitting tool of FIG. It is the perspective view which showed a mode that the opening part of the bag body with a fitting tool of FIG. 1 was opened.

An example of the bag body with a fitting tool of this invention is demonstrated based on FIGS.
As shown in FIG. 1 and FIG. 2, a bag body 1 with a fitting tool of the present embodiment (hereinafter referred to as “bag body 1”) is provided on a bag body 20 for containing contents and an inner surface of the bag body 20. And an attached fitting 10.

  The fitting 10 has a pair of strip-shaped first base material 11 and second base material 12. On the opposing surface 11 a of the first base material 11, a male fitting portion 13 of a ridge is provided along the longitudinal direction of the first base material 11. On the facing surface 12a of the second base material 12, a female side fitting portion 14 that is detachably fitted to the male side fitting portion 13 is provided along the longitudinal direction of the second base material 12. .

The shape of the 1st base material 11 will not be specifically limited if it is a strip | belt shape normally used with a well-known fitting tool.
The first substrate 11 is preferably a laminated film in which a heat-resistant layer and a heat seal layer are laminated from the facing surface 11a side. The first substrate 11 may have a barrier layer between the heat-resistant layer and the heat seal layer.
Examples of the resin material for forming the heat-resistant layer include biaxially stretched nylon and biaxially stretched polypropylene.
Examples of the resin material forming the heat seal layer include linear low density polyethylene, unstretched polypropylene, ethylene-vinyl acetate copolymer, ionomer and the like.
Polyvinyl alcohol etc. are mentioned as a resin material which forms a barrier layer.

1 type may be sufficient as the resin material which forms the 1st base material 11, and 2 or more types may be sufficient as it. The first base material 11 may be added with known additives such as a stabilizer, an antioxidant, a lubricant, and an antistatic agent as necessary.
Moreover, the 1st base material 11 is not limited to the base material which consists of laminated films, The base material which consists of a single layer film may be sufficient.
As the 2nd base material 12, the same base material as the 1st base material 11 is mentioned, for example, A preferable aspect is also the same.

As shown in FIG. 2, the male fitting portion 13 has a trunk portion 13a that rises from the facing surface 11a of the first base member 11, and a head portion 13b that is provided on the distal end side of the trunk portion 13a and that is larger than the trunk portion 13a. doing. The female-side fitting portion 14 includes a pair of first arm portion 14a and second arm portion 14b that rise in a circular arc shape from the facing surface 12a of the second base member 12, and the first arm portion 14a and the second arm portion 14b A concave strip 14c is formed by the two arm portions 14b.
The male fitting portion 13 and the female fitting portion 14 can be detachably fitted by fitting the head portion 13b of the male fitting portion 13 into the recess 14c of the female fitting portion 14. It has become.

The cross-sectional shape of the male side fitting part 13 and the female side fitting part 14 can repeat opening and closing of the opening part of a bag main body by attaching / detaching the male side fitting part 13 and the female side fitting part 14 mutually. I just need it. For example, the female side fitting portion has a neck portion that rises from the facing surface 12a of the second base member 12, and a pair of arm portions that rise from the neck portion in a circular arc shape. The female side fitting part in which the concave streak which fits the head of a joint part may be formed may be sufficient.
As a material of the male side fitting part 13 and the female side fitting part 14, the same thing as what was mentioned by the 1st base material 11 and the 2nd base material 12 is mentioned, for example.

The fitting tool 10 changes its color depending on the temperature. Since the fitting tool 10 is attached to the inner surface of the bag body 20, the color of the fitting tool 10 is a color reflecting the temperature in the bag body 20. Thereby, the temperature of the contents accommodated in the bag body 20 of the bag body 1 can be easily determined from the color of the fitting 10.
The color of the fitting tool 10 may be changed in color throughout the fitting tool 10 or may be changed in part of the fitting tool 10. For example, the colors of the first base material 11 and the second base material 12 do not change, and the colors of the male side fitting part 13 and the female side fitting part 14 may change. The colors of the first base member 11 and the second base member 12 may be changed without changing the colors of the portion 13 and the female side fitting portion 14.
The color tone of the fitting 10 is not particularly limited as long as the color change is visible from the outside of the bag body 1.

As a mode in which the color of the fitting tool 10 is changed depending on the temperature, a mode in which the fitting tool 10 contains a temperature-sensitive color-changing material that changes color in response to the ambient temperature is preferable.
The temperature-sensitive color-changing material may be contained in the entire fitting tool 10 or may be contained only in a part of the fitting tool 10. For example, only the first base material 11 and the second base material 12 in the fitting 10 may contain a temperature-sensitive color-changing material, and only the male side fitting part 13 and the female side fitting part 14 are sensitive. A thermochromic material may be included. Moreover, when the 1st base material 11 or the 2nd base material 12 is a laminated | multilayer film, you may contain a temperature-sensitive color-change material in all the layers of this laminated | multilayer film, and only in a part of layer A temperature-sensitive color-changing material may be included.

  Examples of the temperature-sensitive color-changing material include a mixture containing an electron-donating compound (color former) and an electron-accepting compound (developer). In the mixture, a crystal is formed in response to a temperature change, and the electron is transferred between the electron donating compound and the electron accepting compound, and the color changes. Such a color change is reversibly caused by a temperature change.

The electron donating compound is not particularly limited, and examples thereof include known leuco compounds that react with the electron accepting compound to develop color. Specific examples include fluorans.
The electron-accepting compound is not particularly limited, and examples thereof include known compounds that develop color by receiving electrons from a leuco compound. Specific examples include bisphenols.

  From the viewpoint of stably and reversibly changing the color of the fitting 10, it is preferable that the mixture containing the electron-donating compound and the electron-accepting compound is microencapsulated. A known method can be adopted as a method for microencapsulating the mixture.

When the temperature-sensitive color-changing material is contained in the entire fitting tool 10, the content of the temperature-sensitive color-changing material in the fitting tool 10 (100% by mass) is preferably 5 to 40% by mass, and 10 to 30% by mass. % Is particularly preferred. If the content of the temperature-sensitive color-changing material is equal to or higher than the lower limit value, it is easy to determine the color of the fitting 10, and it is easy to determine the temperature of the contents stored in the bag body 1. If the content of the temperature-sensitive color-changing material is not more than the upper limit value, sufficient fitting strength can be easily obtained.
When the first substrate 11 contains a temperature-sensitive color-changing material, the content of the temperature-sensitive color-changing material in the first substrate 11 (100% by mass) is preferably 5 to 40% by mass, 30% by mass is particularly preferred. A preferable content when the second base material 12 contains a temperature-sensitive color-changing material is the same as that of the first base material 11.
When the male side fitting part 13 contains a temperature-sensitive color-changing material, the content of the temperature-sensitive color-changing material in the male side fitting part 13 (100% by mass) is preferably 5 to 40% by mass, 30% by mass is particularly preferred. A preferable content when the temperature-sensitive color-changing material is contained in the female-side fitting portion 14 is the same as that of the male-side fitting portion 13.

  The bag main body 20 is formed by superimposing the first film material 21 and the second film material 22 and heat-sealing all the peripheral portions 23 thereof, and is in a sealed state. A cutting auxiliary line 24 is provided in the bag body 20 on the upper side of the fitting tool 10 along the lateral direction, and a notch 25 is formed at the end thereof.

The bag body 1 can be opened by forming an opening 26 in the upper portion as shown in FIG. 3 by cutting and removing the upper portion of the bag body 20 along the auxiliary cutting line 24 from the notch 25. . In the bag body 1, the fitting tool 10 is attached to the opposing inner surface of the bag body 20 so that the male side fitting portion 13 and the female side fitting portion 14 are provided along the edge of the opening 26. . Specifically, as shown in FIG. 2, the outer surface 11 b of the first base material 11 of the fitting tool 10 is welded to the first film material 21 of the bag body 20, and the second base of the fitting tool 10. The outer surface 12 b of the material 12 is welded to the second film material 22 of the bag body 20.
The opening 26 formed in the bag body 1 can be sealed by the fitting tool 10 so as to be freely opened and closed.

  The shape of the bag body 20 is rectangular in this embodiment. However, the shape of the bag body 20 is not limited to a rectangle. Further, the size of the bag body 20 is not particularly limited, and may be appropriately selected depending on the contents accommodated in the bag body 20.

  The bag body 20 is configured to be able to determine the color change of the fitting 10 from the outside of the bag body 20. Specifically, at least a portion of the bag body 20 to which the fitting tool 10 is attached is transparent. The bag body 20 may be entirely transparent, the part to which the fitting 10 is attached may be transparent, and the other part may be colored and opaque.

The 1st film material 21 and the 2nd film material 22 which form the bag main body 20 should just be what can weld the fitting 10 by heat seal, and are the lamination | stacking which has a sealant layer and a base material layer at least from an inner surface side. A film is preferred.
Examples of the base material layer include biaxially stretched nylon and biaxially stretched polypropylene.
Examples of the sealant layer include linear low density polyethylene, unstretched polypropylene, ethylene-vinyl acetate copolymer, ionomer and the like.
The laminated film may be provided with a functional layer such as a barrier layer.
The first film material 21 and the second film material 22 may be single-layer films composed only of a sealant layer.
The first film material 21 and the second film material 22 may be colored with a colorant or the like as long as the color change of the fitting 10 can be discriminated.

The cutting auxiliary line 24 is a line that assists in cutting and opening the bag body 20. As the cutting auxiliary line 24, for example, from a weakened line or a perforation in which the portion of the cutting auxiliary line 24 in the first film material 21 and the second film material 22 of the bag body 20 is thinner than the other parts. And weakening lines composed of pores formed in a row. Further, the cutting auxiliary line 24 is not limited to the weakening line, and may be a line formed by printing or the like indicating a position to be cut with a scissor or a cutter.
Although the cutting auxiliary line 24 is formed along the width direction of the bag body 20 in the present embodiment, the cutting auxiliary line 24 is not limited to this form, and may be provided inclined with respect to the width direction of the bag body 20. Good.

  The shape of the notch 25 is triangular in this example. The shape of the notch 25 is not limited to a triangular shape, and may be a semicircular shape, a linear shape, or the like.

  In the bag body with a fitting tool described above, the color of the fitting tool changes depending on the temperature, and the color change of the fitting tool can be determined from the outside of the bag body. The temperature of the contained contents can be easily determined from the color of the fitting that reflects the temperature inside the bag.

In addition, the bag body with a fitting tool of this invention is not limited to the bag body 1 if it is a range with the effect of this invention.
For example, a pair of fitting parts may be provided with a plurality of male fitting parts on each base material, and opening and closing the opening of the bag body by fitting them together. Moreover, one or more female side fitting parts may be provided in each base material, and the opening part of a bag body may be opened and closed by mutually fitting these female side fitting parts.
Moreover, a fitting tool does not have a base material, but a pair of fitting part may be directly formed in the inner surface of a bag main body.
Moreover, a bag main body is not specifically limited, The bag main body of various forms known as a bag main body of a bag body with a fitting tool is employable. For example, the bag body 1 is a sealed bag body until the opening is formed using the cutting auxiliary line, but the bag body with a fitting tool having a bag body in which the opening is formed in advance. Also good.

DESCRIPTION OF SYMBOLS 1 Bag body with fitting tool 10 Fitting tool 11 1st base material 12 2nd base material 13 Male side fitting part 14 Female side fitting part 20 Bag main body 26 Opening part

Claims (1)

A bag body containing contents, and a fitting attached to the inner surface of the bag body,
The fitting has a pair of fitting parts that are attached to the inner surfaces facing the bag body so as to be along the edge of the opening formed in the bag body, and are detachably fitted to each other.
The bag body with a fitting tool which the color of the said fitting tool changes depending on temperature, and can distinguish the change of the color of the said fitting tool from the outer side of the said bag main body.

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