CN2749817Y - Packing bag - Google Patents

Abstract

The utility model relates to a packing bag which comprises a bag body, wherein both ends of the bag body is provided with opening ends and both sides of the facade of the bag body are respectively outward extended with a sealed edge. The utility model is characterized in that the bag body is formed in the way that offset paper and a PET film are compounded; the positions of the outer surface of the back of the bag body close to the two opening ends are respectively provided with a folding schematic line; an adhesive layer is arranged below one of the folding schematic lines, is a sticker layer, and is provided with sticker paper; the inner face of the sealed edge positioned at one side of the other folding schematic line is provided with an adhesive layer. After the side is folded along the folding schematic line, the sealed edge provided with the adhesive layer is pasted to the corresponding position of the back of the bag body so as to form a bag bottom. Because the sealing positions at both ends are not positioned at the opening ends, but on the bag body within the positions close to the opening ends so that even powder or liquid is filled in the bag, the powder or the liquid can not leak outside the bag; because the bag body is formed in the way that the offset paper and the PET film are compounded, the utility model has the advantages of anti-leakage reinforcement, firmness, no tear and wide use and application range.

Description

A kind of packaging bag

Technical field

The utility model relates to a kind of packaging bag, relates in particular to a kind of extrusion coating paper packaging bag of not leaking powder, liquid-impermeable.

Background technology

The current packaging bag mainly contains two kinds, and wherein: a kind of is the papery packaging bag, and its cost is low, makes simply, reclaims easily, but is present in damageable shortcoming, has therefore limited to its range of use; Also having a kind of is the packaging bag of plastic material, and cost is low and not fragile though it has, the advantage of antiseep, can not adapt to environmental demands, belongs to the category that national requirements is transformed.

Summary of the invention

The purpose of this utility model be propose for the shortcoming that overcomes existing packaging bag a kind of both firmly, can not the seepage powder, liquid, the later-model packaging bag of compliance with environmental protection requirements again.

The purpose of this utility model is achieved in that a kind of packaging bag, comprises a bag body, is made as open end at bag body two ends, and an edge sealing stretches out respectively in the positive both sides of bag body;

Be characterized in that the bag body is composited by offset paper and PET film;

Nearly two open end of outside face of carrying face at bag on the body respectively are provided with together folding schematic lines, and wherein the below of a folding schematic lines is provided with adhesive-layer one, and this adhesive-layer is a non-drying glue layer, which is provided with a non cohesive gel paper;

Be provided with one deck adhesive-layer at the edge sealing inner face that is positioned at another folding schematic lines one side, this side pastes bag with the edge sealing that is provided with adhesive-layer and carries the corresponding position of face on the body after folding along folding schematic lines, forms the bag end.

Owing to the utility model has adopted above technical scheme, the bag body adopts offset paper and PET to be composited, and has the characteristic that anti-hard thing is poked, prevented powder or seepage, and the function of compliance with environmental protection requirements; Employing is in folding, bonding at the bag of nearly sack, the caking ability that seals is stronger; And adopt and to be convenient to the pre-gluing mode that the user seals, use more convenient.

Description of drawings

Concrete structure of the present utility model is further provided by following embodiment and accompanying drawing thereof.

Fig. 1 is the front elevation of product structure of the present utility model.

Fig. 2 is the back view of product structure of the present utility model.

Fig. 3 is the view of product of the present utility model two ends when not sealing.

Fig. 4 is the expansion drawing of the utility model bag body.

Fig. 5 a～d is a folding step scheme drawing of the present utility model.

The specific embodiment

See also Fig. 1～Fig. 3, a kind of packaging bag of the utility model comprises bag body 1, and bag body 1 is composited by offset paper and PET film, can increase fastness, is not afraid of tearing and humidity.Be made as open end 21,22 at bag body two ends, an edge sealing 31,32 is outwards respectively extended in the front surface A both sides of bag body, and is folded toward when sealing.Nearly two open end of outside face in the back surface B of bag body respectively are provided with together folding schematic lines 51,52, and the below of a folding schematic lines 52 therein is provided with adhesive-layer 42 one, and this adhesive-layer is a non-drying glue layer, which is provided with a non cohesive gel paper 6.Be provided with one deck adhesive-layer 41 at edge sealing 31 inner faces that are positioned at another folding schematic lines 51 1 sides, earlier that this side is folding along folding schematic lines 51 when making packaging bag, and this edge sealing that is provided with adhesive-layer 41 is pasted bag carry the corresponding position of face on the body, form a bag end.When packing is used, open the non cohesive gel paper on this non-drying glue layer, with this open end along folding schematic lines 52 bendings folding after, the edge sealing 32 and the folding part bag body of schematic lines more than 52 of this port pasted on the described non-drying glue.

See also Fig. 4, this is the internal layer of the utility model packaging bag expansion drawing, whole bag body is made of offset paper 11 compound PET films 12, comprise front surface A, back surface B, extend in two edge sealing 31,32 and a connection side C of front surface A both sides, inner face is provided with each folding dotted line a1, a2, so that unified specification when folding.

See also Fig. 5 a～5d, earlier that connection side C is folding along folding dotted line a1 when forming packaging bag, be coated with one deck viscose glue c1 then in the outside of connection side C, again with the edge lap of back surface B to the viscose glue c1 of this connection side C, form the state shown in Fig. 5 a.And carry on the body at bag face B the nearly open end in both sides the position each together folding schematic lines 51,52 is set, edge sealing 31 inner faces in the bottom of packaging bag one side are coated with last layer viscose glue 41 again, fold, seal along folding schematic lines 51 then, shown in Fig. 5 b; Carry on the body at bag face B the folding schematic lines 51 of opposite side below non-drying glue 42 is set one, shown in Fig. 5 c, bonding one deck non cohesive gel paper 6 on it is shown in Fig. 5 d.When the bag inner packing article need seal the time, the non cohesive gel paper 6 of tearing earlier, again the bag body is folded (this folding direction is relative with the direction that edge sealing 31 folds) in the direction of arrows along folding schematic lines 52, the edge sealing 32 and the part bag body of folding schematic lines more than 52 of this port are pasted, packing finishes.

Because the utility model is to adopt the bag body position by nearly open end to begin to fold when sealing, even the therefore powder that the article of putting into are trickle or liquid, semi-fluid material are arranged all can not leak out; Adding is to adopt the material of the compound material of offset paper and PET material as packaging bag, thus very firm, can not tear, and the requirement of composite environmental-friendly, can enlarge the purposes of this packaging bag greatly.

Claims (1)

1. a packaging bag comprises a bag body, is made as open end at bag body two ends, and an edge sealing stretches out respectively in the positive both sides of bag body;

It is characterized in that the bag body is composited by offset paper and PET film;

Nearly two open end of outside face of carrying face at bag on the body respectively are provided with together folding schematic lines, and wherein the below of a folding schematic lines is provided with adhesive-layer one, and this adhesive-layer is a non-drying glue layer, which is provided with a non cohesive gel paper;

Be provided with one deck adhesive-layer at the edge sealing inner face that is positioned at another folding schematic lines one side, this side pastes bag with the edge sealing that is provided with adhesive-layer and carries the corresponding position of face on the body after folding along folding schematic lines, forms the bag end.

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