CN210454045U

CN210454045U - Packaging bag and composite film thereof

Info

Publication number: CN210454045U
Application number: CN201921027901.4U
Authority: CN
Inventors: 刘梅
Original assignee: Dalian Xinyong Plastic Packaging Co ltd
Current assignee: Dalian Xinyong Plastic Packaging Co ltd
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2020-05-05
Anticipated expiration: 2029-07-03

Abstract

The utility model provides a wrapping bag and complex film thereof, this complex film include from interior to exterior low density polyethylene film, rubber coating, printing layer and the polyethylene film that sets gradually, the printing layer includes ink printing's antifalsification label and product pattern, the surface of polyethylene film is handled through the alligatoring. The packaging bag and the composite film thereof are arranged by a multilayer film structure, so that the attractiveness of the packaging bag can be enhanced, the printing layer can be prevented from being worn, and the overall strength and performance are improved.

Description

Packaging bag and composite film thereof

Technical Field

The utility model relates to a product packaging technical field, in particular to wrapping bag and complex film thereof.

Background

Along with the improvement of living standard of people, the packaging bag becomes an indispensable packaging article in the life of people. The plastic film is made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other plastic films. The plastic packaging machine has larger and larger share of plastic packaging products in the market, and particularly brings great convenience to the life of people according with the plastic flexible package. The plastic film of ordinary packing bagging-off has only one deck, if print like patterns such as anti-fake label wearing and tearing easily on the wrapping bag membrane, can't satisfy the operation requirement.

SUMMERY OF THE UTILITY MODEL

The utility model provides a wrapping bag and complex film thereof has solved the problem that the demand can't be satisfied to the single-layer plastic film among the prior art.

The technical scheme of the utility model is realized like this:

the utility model provides a complex film for the wrapping bag uses, includes low density polyethylene film, rubber coating, printing layer and the polyethylene film that from interior to exterior set gradually, the printing layer includes ink printing's antifalsification label and product pattern, the surface of polyethylene film is handled through the alligatoring.

Preferably, the low density polyethylene film is an LDPE film.

Preferably, the low density polyethylene film has a density of 0.9 to 0.925 g/cc.

The utility model provides a wrapping bag, this wrapping bag adopt the complex film, and this complex film includes low density polyethylene film, rubber coating, printing layer and the polyethylene film that from interior to exterior set gradually, the printing layer includes ink printing's antifalsification label and product pattern, the surface of polyethylene film is handled through the alligatoring.

Preferably, the packaging bag comprises a front part, a rear part and two side surfaces, wherein the rear part is arranged opposite to the front part, the two side surfaces are connected and arranged between two sides of the front part and the rear part, longitudinal folding lines extending along the longitudinal direction are formed in the middle parts of the two side surfaces, the bottom end of the front part extends towards the rear side through reciprocating bending to form a front half bottom surface, the bottom end of the rear part extends forwards through reciprocating bending to form a rear half bottom surface, two sides of the front half bottom surface and two sides of the rear half bottom surface form a heat sealing line with the bottom end of the side surfaces of the packaging bag respectively, and the inner side end of the front half bottom surface and the inner side end of the rear half.

Preferably, the top ends of the front and the back are respectively provided with a hand-held hole.

Preferably, the packaging bag is also provided with a bonding line in the middle of the front half bottom surface and the rear half bottom surface.

The utility model has the advantages that:

the utility model discloses a wrapping bag and complex film thereof are by multilayer film structure setting, can strengthen the pleasing to the eye of wrapping bag and prevent simultaneously that printing layer improves bulk strength and performance with wearing and tearing.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the packaging bag of the present invention;

FIG. 2 is a schematic view of the front bottom half of FIG. 1;

fig. 3 is a schematic view showing a structure of a composite film used in the packing bag of fig. 1.

In the figure:

11. a front face; 12. a rear side; 13. a side surface; 130. a longitudinal fold line; 15. a front half bottom surface; 16. a rear half bottom surface; 17. 18, heat sealing the wire; 19. a hand-held hole; 21. a low density polyethylene film; 22. gluing layers; 23. printing layer; 25. a polyethylene film; 150. 160, bonding wires.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, the packing bag has a square structure, and includes a front surface 11, a rear surface 12 opposite to the front surface 11, and two side surfaces 13 connected between two sides of the front surface 11 and the rear surface 12, wherein longitudinal folding lines 130 extending in a longitudinal direction are respectively formed in the middle of the two side surfaces 13. Referring to fig. 2, the bottom end of the front surface 11 is bent and extended backward to form a front half bottom surface 15, and the bottom end of the rear surface 12 is bent and extended forward to form a rear half bottom surface 16. Both sides of the front half bottom 15 and both sides of the rear half bottom 16 form a heat-seal line 17 with the bottom end of the side of the packaging bag, respectively. The inner ends of the front half bottom 15 and the rear half bottom 16 form another heat seal line 18 along the center line of the bottom of the bag. The front and

rear faces

11 and 12 are each provided with a hand-held hole 19 at the top.

In specific implementation, the package can further have a

bonding line

150, 160 in the middle of the front half bottom 15 and the back half bottom 16.

Referring to fig. 3, the packaging bag is composed of a composite film, which includes a low density polyethylene film 21, a glue layer 22, a printing layer 23 and a polyethylene film 25 sequentially arranged from the inside to the outside.

The low density polyethylene film 21 is an LDPE film having a density of from 0.9 to 0.925 g/cc. The low-density polyethylene film is soft in material and has certain heat resistance. The printing layer 23 includes an anti-counterfeit mark and a product pattern printed by ink. The surface of the polyethylene film 25 may be roughened.

The packaging bag and the composite film thereof are arranged by a multilayer film structure, so that the attractiveness of the packaging bag can be enhanced, the printing layer can be prevented from being worn, and the overall strength and performance are improved.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A composite film for use in packaging bags, characterized in that: including low density polyethylene film, rubber coating, printing layer and the polyethylene film that from interior to exterior set gradually, the printing layer includes ink printing's antifalsification label and product pattern, the surface of polyethylene film is handled through the alligatoring.

2. The composite film of claim 1, wherein: the low density polyethylene film is an LDPE film.

3. The composite film of claim 2, wherein: the low density polyethylene film has a density of 0.9 to 0.925 g/cc.

4. A kind of wrapping bag, its characterized in that: the packaging bag uses the composite film according to any one of claims 1 to 3.

5. The package of claim 4, wherein: the packaging bag comprises a front surface, a rear surface and two side surfaces, wherein the rear surface is arranged opposite to the front surface, the two side surfaces are connected and arranged between two sides of the front surface and the rear surface, the middle parts of the two side surfaces form longitudinal folding lines extending along the longitudinal direction respectively, the bottom end of the front surface extends towards the rear side through reciprocating bending to form a front half bottom surface, the bottom end of the rear surface extends forwards through reciprocating bending to form a rear half bottom surface, two sides of the front half bottom surface and two sides of the rear half bottom surface form heat sealing lines with the bottom ends of the side surfaces of the packaging bag respectively, and the inner side end of the front half bottom surface and the inner side end of the rear half.

6. The package of claim 5, wherein: the top ends of the front and the back are respectively provided with a hand-held hole.

7. The package of claim 5, wherein: the packaging bag is also provided with a bonding line in the middle of the front half bottom surface and the rear half bottom surface.