JPH07250575A - Transparent packing bag for pear and its production - Google Patents

Abstract

PURPOSE:To provide a transparent packing bag which enables the clear detection of the bottom of a fruit and accordingly the sure inspection of a fruit (e.g. pear) after packing. CONSTITUTION:This transparent packing bag 1 is made of doubly layered transparent resin films. One of the layered resin films is extended beyond the opening 2 and work as tongue piece 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transparent packaging bag used for protecting harvested pear fruits and a method for producing the same.

[0002]

2. Prior Art Pears are harvested while they are still blue.
After that, the product is matured for about 35 days (the number of aging days can be adjusted by refrigerating, and shipping adjustment is possible), and the product is then aged and shipped. After being shipped, it will be sold at the store through the market, but in the meantime it is made of a transparent resin film to protect the fruit and to visually check the condition of the fruit at the time of sale and to give the fruit a high-class feeling. It is packed in a designated packaging bag.

The above-mentioned package is packaged while the fruit has a bluish tint, and the conventional pear-soluble packaging bag has two transparent resin films 02 and 03 stacked as shown in FIG.
With a trapezoidal flat bag 01 whose opening is wider,
The pear A is put in the bag body 01 so that the short side (back side) of the bag body becomes a fruit pattern, and the remaining portion 04 of the opening is appropriately folded to attach the transparent adhesive tape to the portion under the fruit A. It is fixed at.

[0004]

By the way, at the time of shipping inspection of pears, since the pears are in a state of being packaged in a transparent resin film packaging bag, the inspection is naturally carried out by visually observing through the transparent resin film packaging bag. . In addition, this pear inspection is performed by grading "excellent", "excellent", etc. according to the condition of the bottom part of the fruit (worm eating in the peanut part, number and size of black ends).

However, as described above, since the packaging bag is folded in multiple layers at the bottom of the fruit, it is very difficult to see and is incorrectly graded. If a trader discovers it in the shop or a buyer discovers it, the credibility of the inspection is impaired. Therefore, the present invention is
It proposes a new packaging bag that can be reliably tested and a manufacturing method thereof.

[0006]

A pear transparent packaging bag according to the present invention is a flat bag shape in which two transparent resin films are stacked and the portions other than the opening are sealed, and the opening is widened. Make a bag shape, and provide a small hole on the back side of the bag,
One of the laminated resin films is longer than the opening portion to form a tongue piece.

Further, the manufacturing method thereof is such that two long transparent resin films are overlapped with each other with their long edges appropriately shifted.
While heat-sealing the overlapped portion of the trapezoid whose long side is the long and short sides except the long side is continuously heat-sealed, the points from the short side corners of the trapezoid to the long edge of the resin film are simultaneously It is characterized in that it is heat-fused to produce a transparent resin film bag having a trapezoidal flat bag body and having an appropriate tongue piece in the opening.

[0008]

When two long transparent resin films are overlapped with their long edges properly shifted and heat-sealed to a predetermined shape continuously, the shifted long edges become tongue pieces. It is a thing.

In order to wrap pears in this packaging bag, the pears are stored in the bag portion, and when the fruit is small, the opening and the tongue are folded together and fixed to the place under the fruit with a transparent adhesive tape. . Also, when the fruit is large, the opening is closed with a tongue, and the tongue is fixed to the place under the fruit with a transparent adhesive tape.

[0010]

EXAMPLES Next, examples of the present invention will be described. The transparent pouch for pear 1 shown in the embodiment has a flat bag-like shape in which two transparent resin films 11 and 12 are superposed and other than the opening 2 are sealed, as illustrated in FIGS. 1 to 3.
The overall shape is trapezoidal with the opening 2 widening. A small hole 3 is formed on the short side 11 side (back side of the bag) of the bag body 1.
And one of the resin films b that are overlapped with each other is made longer than the opening 2 to form the tongue piece 4.

Thus, the pear A is stored in the bag 1 portion and the opening 2 is closed to package the pear A. When the fruit a is small,
The opening 2 and the tongue 4 are folded together and fastened to the lower part of the fruit A with the transparent adhesive tape B. When the fruit A is large, the tongue 4 closes the opening 2 and the tongue 4 is covered with the fruit. It is fixed with the transparent adhesive tape B at the lower part. Therefore, the bottom portion of the fruit A after packaging has a smaller amount of folding than the conventional transparent bag, the bottom portion of the fruit A can be clearly visually recognized, and an appropriate inspection can be performed.

In the above-mentioned method for producing a transparent pouch for pears, the long transparent films 5 and 6 made of a thermoplastic resin, which have been widely used as a material for the transparent pouch, have been used with their long edges appropriately shifted. The transparent packaging bag 1 is obtained by stacking and sending it out, and then performing heat seal fusing with a cutting device 7 equipped with a predetermined linear heat blade.

The shape of the linear hot blade is defined by the short sides a, the hypotenuses b, and the short sides of the trapezoid of which the long sides are the long sides in the overlapping portions of the films 5 and 6. The resin film is formed in a linear shape at a portion c up to the long edge, and in particular, a plurality of trapezoidal shapes are combined so that the hypotenuse portion b also serves as an adjoining trapezoidal shape.

When the polymer film continuously supplied is heat-sealed by the linear heat blade, the heavy films 5 and 6 are heat-welded to cut the polymerized portion, and the non-polymerized portion is cut. Outer portion of the short side portion a is removed as an unused portion, and the trapezoidal long side portion d is not heat-fused. It is formed as a tongue piece 4 which is continuous with the bag body 1 part. The small holes 3 may be formed in a superposed state, or may be formed after the bag 1 is produced.

Therefore, a trapezoidal transparent resin film bag provided with the tongue piece 4 can be continuously manufactured.

[0016]

INDUSTRIAL APPLICABILITY As described above, the present invention is a transparent pouch for pear, which is a flat bag in which two transparent resin films are superposed, and one of the superposed resin films is longer than the opening tongue. Yes, there is an advantage that the bottom part of the fruit A after packaging can be easily seen and an appropriate inspection can be carried out. Moreover, the manufacturing method is that two long transparent resin films are overlapped with their long edges appropriately shifted. In addition, the overlapped portion is a trapezoidal flat bag that has a trapezoidal flat bag body, which is formed by continuously heat-sealing the trapezoidal portion of the trapezoidal shape whose long and short sides are long and short sides and excluding the long side. The transparent packaging bag for pear having an appropriate tongue piece on its part could be easily produced.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a sectional view of the same.

FIG. 3 is an explanatory view of the same packaging state.

FIG. 4 is an explanatory diagram of the implementation of the method of the present invention.

FIG. 5 is an explanatory diagram of an apparatus according to an embodiment of the method.

FIG. 6 is an explanatory view of a packaging state of a conventional packaging bag.

[Explanation of symbols]

 1 bag 2 opening 3 small hole 4 tongue

Claims (2)

[Claims] 1. A trapezoidal bag having a flat bag shape in which two transparent resin films are stacked and the area other than the opening is sealed, and the opening is widened, and a small hole is formed on the back side of the bag. A transparent packaging bag for pears, characterized in that one of the laminated resin films is made longer than the opening to form a tongue piece. 2. Two long transparent resin films are overlapped with each other with their long edges appropriately shifted, and the overlapped portion is continuously formed in a trapezoidal shape whose long and short sides are long sides. Along with heat-sealing, the parts from the short side corners of the trapezoid to the long edge of the resin film are also heat-sealed at the same time, and the trapezoidal flat bag is provided with an appropriate tongue at the opening. A method for producing a transparent packaging bag for pears, which comprises producing a transparent resin film bag.