JPH0352676Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a product packaging bag.

2. Description of the Related Art Conventionally, product packaging bags with headers made of plastic film have been widely used because they are convenient for displaying and transporting products.

In the product packaging bags that have been used up until now, when a product is stored in the bag body, the bag body swells and its width contracts, while the header portion at the top remains the original width. As a result, the widths at the top and bottom are uneven, which makes it look bad when displaying the product, and the header protrudes when the product is being transported.
The packaging was uneven and inconvenient.

The object of the present invention is to provide a product packaging bag that does not have these drawbacks.

The present invention consists of a bag body made up of a front film and a back film whose bottoms are connected via a gusset fold and whose left and right peripheral parts are fused, and which extends from the center of the back film at the opening. This is a packaging bag with a header, in which a lid portion is formed by fusing a header made of a slightly thick sheet having the same shape as the tongue portion to the tongue portion having a width narrower than that of the bag body. The width of the header portion is narrower than the width of the bag body portion by the length of the folding width of the bottom gusset, and the width of the header portion and the width of the packaging body are approximately the same length. It consists of a product packaging body.

The present invention will be explained in more detail with reference to the drawings of embodiments.

The product packaging bag of this embodiment has a bag body composed of a front film 1 and a back film 2, which are connected at the bottom by a gusset fold 3, and the left and right peripheries are fused by peripheral welding parts 6 and 7. ing. A tongue portion 4 having a width narrower than the width of the bag body portion extends from the center of the back film 2 of the opening portion 8, and a slightly thick plastic sheet is attached as a header 5 to the tongue portion 4 at the side fusion portion. 12, 13 or the upper side heat seal portion 14 or near the header lower side 15 are fused by heat seals running in parallel. Also,
Attach this header so as to cover the front surface of the tongue side part 4, make a bend line in the center of the header,
The bag may be sealed by folding the header twice.

The width of the bottom gusset fold 3 is made longer depending on the thickness of the product to be stored. Therefore, when increasing this width, it is necessary to increase the shrinkage of the bag, so the width of the lid must be reduced inversely in proportion to the folding width of the gusset fold 3.

For example, if the product is in the shape of a rectangular parallelepiped, the width of the gusset fold should match the thickness of the rectangular parallelepiped. When the rectangular parallelepiped is stored in this product packaging bag, the width of the bag body portion is exactly the thickness of the rectangular parallelepiped, that is, the width of the gusset fold.
Therefore, in this case, the width of the tongue portion 4 is equal to that of the front film 1.
Alternatively, it is preferable to use the width of the back film 2 minus the width of the gusset fold 3.

In reality, products are not always shaped like rectangular parallelepipeds. For example, when a cloth product such as a towel is stored, the width of the bag does not shrink as much as in the case of a rectangular parallelepiped. Ultimately, it is desirable that the width of the tongue portion 4 be the width of the gusset fold 3, or the width of the front film 1 minus half of that width.

In this embodiment, the two hanging holes 11 of the header are bent and sealed on a line horizontally crossing the middle. The two upper and lower hanging holes 11 are made to overlap exactly when the opening is sealed. The hanging hole 11 is used when hanging and displaying the product packaging bag.

In this embodiment, an adhesive 9 is applied onto the header 5, and a release paper 10 is further applied thereon. The release paper 10 is peeled off and the tongue portion 4 is fixed to the opening of the front film 1 using the adhesive 9, so that the bag body portion can be sealed.

The product packaging bag of the present invention can be easily manufactured by manufacturing a regular product packaging bag with a header, and cutting the left and right sides of the header portion into an L shape by fusing and cutting.

When a product is stored in the bag body of the product packaging bag of the present invention, the width of the bag body shrinks. However, in many cases, the width of the upper part of the bag that is not filled with products remains the original width. Therefore, when sealing the bag, fold the film at the upper left and right corners of the bag slightly inward.
By sealing the film from above with the adhesive 9 on the lid portion while fixing the bending of the film, the entire film can be sealed to a substantially constant width.

In order to facilitate such a sealing operation, it is desirable that the adhesive 9 on the lid be made wider than the normal width, or applied to about half the width of the lid when folded.

The product packaging bag of the present invention is very useful not only for packaging products but also for displaying and transporting them during sales.

[Brief explanation of the drawing]

FIG. 1 is a front view of a product packaging bag according to an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view thereof. The symbols in the figure are 1: front film, 2: back film, 3: gusset folded part, 4: tongue piece, 5: header, 6, 7: peripheral fused part, 8: opening, 9: adhesive, 10: Release paper, 11: Hanging hole, 12,1
3: Side fusion part, 14: Top heat seal part, 1
5: At the bottom of the header.

Claims (1)

[Scope of utility model registration request] The bag body is made up of a front film and a back film whose bottoms are connected via a gusset fold and whose left and right peripheral parts are fused, and which extends from the center of the back film at the opening. A packaging bag with a header in which a lid portion is constituted by a tongue portion having a narrower width, and a header made of a slightly thick sheet having the same shape as the tongue portion and fused to the tongue portion, the header having a narrower width. A product packaging body in which the width of the header part and the width of the packaging body are approximately the same length, in which the product is stored in something whose width is narrower than the width of the bag body part by the length of the folding width of the bottom gusset. .