CN201411112Y - Side seal with bottom packaging bag - Google Patents

Abstract

A side-sealed packaging bag with bottom, including front, back, bottom and left and right sides. The whole packaging bag is made of a whole piece of paper after cutting, folding and gluing. Its characteristics are: the front, bottom and back are unfolded When it is a seamless overall structure, the left and right sides of the packaging bag are also seamless when cut. The folded edge at the bottom is fixedly connected with the bottom surface. Its advantage is that it is easier to make, the shape is flat, beautiful and generous, it has a strong load-bearing capacity, is firm and durable, can be reused many times, and is more environmentally friendly. It is especially suitable for glass, electronics, high-end gifts, etc. Packing of broken, fragile and valuable items and daily shopping.

Description

Side seal with bottom packaging bag

technical field

The utility model relates to a packaging bag for articles, in particular to a bottom-connected packaging bag.

Background technique

In order to reduce the pollution caused by plastic products to the environment, the country has issued a "plastic restriction order", which prohibits shopping malls, supermarkets and other shopping places from providing free disposable plastic bags. Accepted and used by more and more people.

Most of the handbags that are common in the market today are made of paper, plastic film, metal foil or other composite materials. They are generally made by bonding the bottom and side surfaces. The dependence is large, the adhesive is easy to become brittle after drying and aging, and it is easy to fall off when it is stressed. After the bag body is formed, the bottom surface is folded and glued. The packaging bag or box can be molded and used without bonding by inserting other structures, but its disadvantage is that the cutting is complicated during production, there are many forming steps, there are gaps between the parts at the bottom, and the sealing is poor.

When the above two kinds of packaging bags or boxes are in use, the weight of the items is concentrated on the bottom, and the tension on the bottom is the most concentrated. The phenomenon of "bottom penetration" often occurs when the bottom of the bag or box body is scattered, causing the items to fall to the ground or even be damaged. If the packaging When the bag or box is filled with fragile, fragile and valuable items such as glass, electronics, and high-end gifts, the phenomenon of bottom penetration will cause greater losses. The service life of box also often causes unnecessary loss to people. It can be seen from the above situation that the common disadvantages of existing packaging bags or boxes are: because the bottom is an overlapping structure, the cutting is complicated, not beautiful enough, the load-bearing capacity is poor, and the phenomenon of "bottom penetration" is prone to occur.

Contents of the invention

In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a packaging bag or box that is simple to make, beautiful and firm, and has a strong load-bearing capacity.

Side-sealed packaging bag with bottom, including front, back, bottom and left and right sides, the whole packaging bag is made of a whole piece of paper after cutting, folding and gluing. Its characteristics are: when unfolded, the front, bottom and back are A seamless overall structure, with a formed crease at the junction of the bottom, the front and the back; the left and right sides of the packaging bag are also seamless when cut; the two sides are respectively extended from the outside The folded edge is fixedly connected to the front and back, and the left and right sides are also fixedly connected to the bottom surface through the lower folded edge. The lower folded edge is longer. After pasting the bottom surface, the bottom surface becomes a double-layer structure, which further strengthens the bottom surface. effect.

As a further improvement of the utility model, in order to facilitate hand-carrying, two small holes are respectively opened on the front and the upper part of the back of the packaging bag, and a rope is put on each of the holes on the front and the back, and the two ends of each rope are fixed on the same The inside of the two holes on the surface; a flat hole with a length greater than 40mm can also be opened on the front and back of the packaging bag, and the user can directly insert the finger into the flat hole to lift the packaging bag.

As a further improvement of the utility model, in order to facilitate folding and reduce the space occupied by empty packaging bags during storage and transportation, some creases can be added on the sides and back during production: on each side, the bottom edge of the side For the hypotenuse, fold up the creases of the two right-angled sides of the isosceles right-angled triangle, and then start from the right-angled apex of the right-angled triangle and make a crease on each side along the direction perpendicular to the bottom edge of the side, Then take the vertex of the above-mentioned right triangle as the starting point, and fold a crease on the side and the back along the horizontal direction. With these creases, the packaging bag can be folded conveniently, and the folded sides can be closely attached together, so that Multiple bags stacked together take up very little space and are convenient for storage and transportation.

The utility model can also be covered with a cover during production to form a sealed box body, which is used for product packaging, and is especially suitable for packaging of fragile, fragile and valuable items such as glass, electronics, and high-grade gifts.

Compared with the prior art, the utility model has the advantages that: since each surface is a seamless overall structure, it is easier to cut and make, and the appearance is flat and beautiful; The ability is strong, so the bottom surface will not be degummed or pierced. It is durable, prolongs the service life of the packaging bag, can be reused many times, and is more environmentally friendly. It is especially suitable for fragile and fragile glass, electronics, and high-end gifts. And packaging of valuables and daily shopping.

Description of drawings

Fig. 1 is a plan view of common plug-in packaging bags on the market when they are unfolded;

Fig. 2 is a plan view of common sticky-bottom packaging bags on the market when they are unfolded;

Fig. 3 plan view when the utility model is deployed;

Fig. 4 is the schematic diagram of folding method when the utility model is made;

Detailed ways

It can be seen from Figures 1 and 2 that most of the bottoms of the handbags that are common in the market today are made of lap joints and pasting, and there are seam problems in all of them, which makes the bottom surface weak and prone to bottom penetration.

Fig. 3 is the plane view when the utility model is expanded, also is the shape structure diagram after cutting, and solid line represents the limit after cutting among the figure, and dotted line represents folding line, as can be seen from Fig. 3 and Fig. 4, this packing bag comprises Front side 1, back side 2, bottom side 3, left side 9 and right side 6, the entire packaging bag is made of a whole piece of paper after cutting, folding, and gluing. Front side 1, bottom side 3 and back side 2 are nothing when unfolded. In the overall structure of the seam, there is a formed crease 4, 5 at the junction of the bottom surface 3, the back surface 2, and the front surface 1; The surface 6 is rotated inwardly by 90° along the crease 20, and the folded edge 7 extending from the outside is rotated inwardly by 90° along the crease 18 and then glued together with the front side 1. The crease 18 coincides with the right line 12 of the front side 1, and the left side The side 9 and the right side 6 are pasted symmetrically, that is, the left side 9 is glued together with the back 2 through the folded edge 10 extending from the outside, and the folded edge 10 is glued to the left line 13 of the back 2; the left and right sides 9, 6 is also bonded to the inner side of the bottom surface 3 after the folded edges 11, 8 are rotated 90° inwards along the creases 15, 14 respectively. Since the folded edges 11, 8 are longer, after sticking on the bottom surface 3, the bottom surface 3 into a double-layer structure.

For the convenience of carrying, two small holes 22 are respectively opened on the front 1 and the upper part of the back 2 of the packaging bag, and a rope is respectively put on the holes 22 of the front 1 and the back 2, and the two ends of each rope are fixed on the same side. The inner sides of the two holes 22 on the top; also a flat hole with a length greater than 40mm can be opened at the top of the front and back of the packaging bag, and the user can directly insert fingers into the flat hole to lift the packaging bag, which is convenient for carrying.

In order to facilitate folding and reduce the space occupied by empty packaging bags during storage and transportation, some creases can be added on the two sides 6, 9 and the back during production, and the creases are shown in Figure 3 and Figure 4 The specific position: on the right side 6, with the bottom edge 14 of the side 6 as the hypotenuse, fold up the creases 21 of the two right-angled sides of the isosceles right-angled triangle, and then take the right-angled vertex of the right-angled triangle as the starting point along the vertical Fold a crease 19 in the side 6 in the direction of the bottom edge 14 of the side, and again take the vertex of the above-mentioned right triangle as the starting point, fold a crease 16 in the side 6 and the back 2 in the horizontal direction, and make a crease 16 on the left side 9 On the top, also take the right angle vertex of the corresponding right triangle crease as the starting point, and fold a crease 17 to the left. With these creases, the finished packaging bag can be folded conveniently, and each surface after folding can be tightly folded. Snap together to take up very little space for easy storage and transport.

The utility model can also be covered when it is made to form a six-sided box body. The decoration, handle, seal or box cover on the bag or box body can have various deformations, as long as the front, back, and sides of the bag or box body , the bottom surface or the bottom of the box are consistent with the structure of the utility model, all within the protection scope of the utility model.

Claims (5)

1. Side-sealed bottom packaging bag, including front (1), back (2), bottom (3) and left and right sides (9, 6). The whole packaging bag is cut, folded and glued from a whole piece of paper It is combined, and its characteristics are: the front (1), bottom (3) and back (2) are a seamless overall structure when unfolded, and the junction of the bottom (3) and the front (1) and back (2) Each has a formed crease (4, 5); the left and right sides (9, 6) of the packaging bag are also a seamless overall structure when cut; the left and right sides (9, 6) are respectively extended from the outside The folds (10, 7) are fixedly connected to the front (1) and the back (2), and the left and right sides (9, 6) are also fixedly connected to the bottom (3) through the folds (11, 8) below. 2. The side-sealed bottom packaging bag according to claim 1, characterized in that two small holes (22) are respectively opened on the front (1) and the upper part of the back (2) of the packaging bag, and on the front (1) and the upper part of the back (2). 1) Respectively put on a rope in the hole (22) of the back side (2), and the two ends of every rope are fixed in two holes (22) on the same face. 3. The side-sealed bottom packaging bag according to claim 1, characterized in that: the front (1) and the upper part of the back (2) of the packaging bag each have a flat hole with a length greater than 40mm. 4. The side-sealed bottom packaging bag according to claim 1, 2 or 3, characterized in that: when the packaging bag is produced, some creases are set on the sides (9, 6) and the back (2), On each side, take the base (15,14) of the side (9,6) as the hypotenuse, fold up the creases (21) of the two right-angled sides of the isosceles right-angled triangle, and then use the right-angled apex of the right-angled triangle For the starting point, a crease (19) is upwardly folded on each side (9, 6) along the direction perpendicular to the side bottom edge (15, 14), and then the apex of the above-mentioned right triangle is used as the starting point, along the horizontal direction. Fold a crease (16) on the side (6) and the back (2), and on the left side (9), also take the right angle vertex of the corresponding right triangle as the starting point, and fold a crease (17) to the left. 5. The side-sealed bottom packaging bag according to claim 1, 2 or 3, characterized in that: the packaging bag is covered with a cover during production to form a sealed box.

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