CN216888128U

CN216888128U - Packaging bag film and packaging bag

Info

Publication number: CN216888128U
Application number: CN202123255898.1U
Authority: CN
Inventors: 陈正兵; 史海龙; 杜慧祥
Original assignee: Zhejiang Coastal Film Technology Co ltd
Current assignee: Zhejiang Coastal Film Technology Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-07-05
Anticipated expiration: 2031-12-21

Abstract

The utility model discloses a packaging bag film and a packaging bag, relates to a film product, and aims to solve the problem that a packaging bag made of the film and used for placing contents such as clothes is arranged in a cuboid shape and is inconvenient to hold without an additional packaging bag, and the technical scheme is as follows: including the membrane main part, the membrane main part includes sandwich layer, heat-seal layer and corona layer, and the sandwich layer is located between heat-seal layer and the corona layer, sets up a plurality of incisions that are the setting of spill word in the membrane main part. The notch can accommodate the hand of a person to pass through, so that the packaging bag is convenient for the person to hold, the biaxially oriented film layer is a biaxially oriented polypropylene layer, and the biaxially oriented polypropylene layer has excellent mechanical property, heat resistance and optical property, is light in weight, non-toxic, moisture-proof, high in dimensional stability and low in price, and has high cost performance.

Description

Packaging bag film and packaging bag

Technical Field

The present invention relates to film products, and more particularly, it relates to packaging bag films and packaging bags.

Background

The film is a thin, soft, transparent sheet. Made of plastic, adhesive, rubber or other materials. The scientific interpretation of the film is as follows: a 2-dimensional material formed by atomic, molecular or ionic deposition on a substrate surface. Example (c): optical films, composite films, superconducting films, polyester films, nylon films, plastic films, and the like. Films are widely used in the industries of electronics, machinery, printing and the like, and are classified according to the use of the films: there are agricultural films (here, depending on the specific use of the agricultural film, they can be divided into mulching films and greenhouse films); packaging films (packaging films are classified into food packaging films and packaging films for various industrial products, etc. depending on the specific applications), gas-permeable films used in special environments and having special applications, water-soluble films, films having piezoelectric properties, and the like.

The packaging film is often used for manufacturing packaging bags, and the packaging bags made of the film and used for placing contents such as clothes are arranged in a cuboid shape, so that the packaging bags are inconvenient to hold without being additionally provided.

Therefore, a new solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a packaging bag film and a packaging bag.

The technical purpose of the utility model is realized by the following technical scheme: the utility model provides a packaging bag film, includes the membrane main part, the membrane main part includes sandwich layer, heat-seal layer and corona layer, the sandwich layer is located between heat-seal layer and the corona layer, set up a plurality of incisions that are the setting of spill word in the membrane main part, the incision includes horizontal portion and the vertical portion that is located horizontal portion both sides, the length of vertical portion is located between 2cm to 3cm, the length of horizontal portion is located between 8cm to 10 cm.

By adopting the technical scheme, when the packaging bag made of the film is heat-sealed, the heat-sealing layer can be heated into a viscous state, molecular chains at the interface of the heat-sealing layer in a viscous state mutually permeate and diffuse by means of certain heat-sealing pressure, so that the two film interfaces are fused into a whole, the corona layer can make the surface of the film have higher adhesiveness, so that the ink and the adhesive can be firmly attached on the film, the film can be conveniently made into packaging bags with different packages, the notch can accommodate the hand of a person to pass through, thereby being convenient for people to hold the packaging bag, the length of the vertical part is not too large while meeting the thickness of fingers, therefore, the strength of the packaging bag is improved while the packaging bag made of the film is conveniently lifted, the length of the transverse part can be met by all fingers except the thumb to pass through, and meanwhile, the length of the transverse part cannot be reduced too much to reduce the strength of the packaging bag.

The utility model is further configured to: the film main body is provided with a plurality of circular arc trimming edges communicated with two surfaces of the film main body, and the two circular arc trimming edges are symmetrically arranged and are communicated with the top ends of the two vertical parts on the same notch respectively.

By adopting the technical scheme, the arc edge cutting can reduce the stress concentration at the top end of the vertical part when the packaging bag made of the film is lifted, so that the strength of the packaging bag made of the film is higher.

The utility model is further configured to: the sandwich layer comprises a bidirectional stretching film layer, a shape-retaining layer and a shock-resistant layer which are sequentially arranged.

Through adopting above-mentioned technical scheme, the shape-preserving layer can improve the deflection of the wrapping bag that the film was made to make the plastic bag shape-preserving ability better, make things convenient for the use of plastic bag, resistant towards the layer can improve the intensity of the wrapping bag that the film was made, conveniently transport heavier article, play better guard action to article.

The utility model is further configured to: the two-way stretching film layer is a two-way stretching polypropylene layer, the shape-retaining layer is a CPP layer, and the impact-resistant layer is an LLDPE layer.

Through adopting above-mentioned technical scheme, biaxial stretching polypropylene layer has good mechanical properties, heat resistance and optical property, and matter is light, nontoxic, dampproofing, dimensional stability is high, the price is low to have higher price/performance ratio, CPP layer with low costs and the deflection good, conveniently improve the shape preserving ability of the wrapping bag of making through the film, and with low costs, the sexual valence relative altitude, LLDPE layer impact resistance can the reinforce, thereby make the wrapping bag intensity that the film was made better, more firm.

A kind of wrapping bag, its characterized in that: comprises a bag body, wherein the incisions are positioned on two sides of the bag body.

Through adopting above-mentioned technical scheme, the user is through inserting two incisions with the finger to make to carry and draw the bag body more comfortable, improved the practicality of the bag body.

The utility model is further configured to: the distance between the opening edge of the bag body and the transverse part of the cut is between 5cm and 8 cm.

Through adopting above-mentioned technical scheme, bag body opening border is to the notched distance when having satisfied the intensity of wrapping bag, and the wrapping bag is located the fold of incision top part when having reduced as far as possible and carrying the bag body, conveniently carries and draws the wrapping bag.

In conclusion, the utility model has the following beneficial effects: when the packaging bag made of the film is subjected to heat sealing, the heat sealing layer can be heated to be in a viscous flow state, molecular chains at the interface of the heat sealing layer in the viscous flow state are mutually permeated and diffused by means of certain heat sealing pressure, so that the two film interfaces are fused into a whole, the corona layer can make the surface of the film have higher adhesiveness, so that the ink and the adhesive can be firmly attached on the film, the film can be conveniently made into packaging bags with different packages, the notch can accommodate the hand of a person to pass through, thereby being convenient for people to hold the packaging bag, the length of the vertical part is not too large while meeting the thickness of fingers, therefore, the strength of the packaging bag is improved while the packaging bag made of the film is convenient to lift, the length of the transverse part can be met by all fingers except the thumb to pass through, and meanwhile, the length does not reduce the strength of the packaging bag too much.

Drawings

FIG. 1 is a first schematic structural view of a membrane body according to the present invention;

FIG. 2 is a second schematic view of the structure of the membrane body of the present invention;

fig. 3 is a schematic structural view of the packing bag of the present invention.

In the figure: 1. a film body; 2. a core layer; 3. a heat seal layer; 4. a corona layer; 5. cutting; 6. a transverse portion; 7. a vertical portion; 8. arc trimming; 9. biaxially stretching the film layer; 10. a conformal layer; 11. a shock resistant layer; 12. a bag body.

Detailed Description

The utility model is described in detail below with reference to the figures and examples.

The packaging bag film comprises a film main body 1, wherein the film main body 1 comprises a core layer 2, a heat sealing layer 3 and a corona layer 4, the core layer 2 is located between the heat sealing layer 3 and the corona layer 4, the core layer 2 comprises a biaxially oriented film layer 9, a shape-retaining layer 10 and a flushing-resistant layer 11 which are sequentially arranged, the flushing-resistant layer 11 is attached to the heat sealing layer 3, the biaxially oriented film layer 9 is a biaxially oriented polypropylene layer, the shape-retaining layer 10 is a CPP layer, and the flushing-resistant layer 11 is an LLDPE layer.

As shown in fig. 1, a plurality of incisions 5 that are the setting of spill word have been seted up on the membrane main part 1, a plurality of incision 5 array distribution, incision 5 includes horizontal portion 6 and the vertical portion 7 that is located horizontal portion 6 both sides, the both ends of horizontal portion 6 communicate with two vertical portions 7 respectively, the length of vertical portion 7 is 2.5cm, the length of horizontal portion 6 is 9cm, set up a plurality of circular arc edge trims 8 that communicate its two sides on the membrane main part 1, two circular arc edge trims 8 symmetry set up and communicate with the top of two vertical portions 7 on the same incision 5 respectively.

As shown in fig. 1 and 3, the film is a packaging bag comprising a rectangular parallelepiped bag body 12, notches 5 are provided on both sides of the bag body 12, a lateral portion 6 of each notch 5 is provided in parallel with an opening edge of the bag body 12, and a distance from the opening edge of the bag body 12 to the lateral portion 6 of each notch 5 is 7 cm.

The working principle is as follows: when a packaging bag made of a film is subjected to heat sealing, the heat sealing layer 3 can be heated to be in a viscous flow state, molecular chains at the interface of the heat sealing layer 3 in the viscous flow state are mutually permeated and diffused by virtue of certain heat sealing pressure, so that the two film interfaces are integrated, and the packaging bag has certain strength, thereby facilitating the use of the packaging bag, the corona layer 4 can ensure that the surface of the film has higher adhesiveness, so that printing ink and an adhesive can be firmly adhered on the film, thereby facilitating the manufacture of packaging bags of different packages, the biaxially oriented polypropylene layer has excellent mechanical property, heat resistance and optical property, is light in weight, nontoxic, moistureproof, high in dimensional stability and low in price, thereby having higher cost performance, the CPP layer has low cost and good stiffness, the shape-preserving capability of the packaging bag made of the film is conveniently improved, the packaging bag is convenient to use, the cost is low, the cost performance-price ratio is high, and the LLDPE layer has strong impact resistance, therefore, the packaging bag made of the film has better strength and is firmer, heavier objects can be conveniently transported, and the film can better protect the objects.

When the packaging bag is used, the notches 5 can be used for allowing hands of people to pass through, so that people can conveniently hold the packaging bag, a user inserts fingers into the two notches 5, the lifting bag body 12 is more comfortable, the practicability of the bag body 12 is improved, the length of the vertical part 7 is not too large while the finger thickness is met, the strength of the packaging bag is improved while the packaging bag is conveniently lifted, the length of the horizontal part 6 is also met while all fingers except for a thumb pass through, meanwhile, the length is not too large to reduce the strength of the packaging bag, when the packaging bag made of a film is lifted, the stress concentration at the top end of the vertical part 7 is reduced, the strength of the packaging bag is higher, the distance from the opening edge of the bag body 12 to the notches 5 is met while the strength of the packaging bag is met, wrinkles of the packaging bag above the notches 5 when the packaging bag body 12 is lifted are reduced as much as possible, the packaging bag is convenient to lift.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims

1. A packaging bag film characterized by: including membrane main part (1), membrane main part (1) includes sandwich layer (2), heat-seal layer (3) and corona layer (4), sandwich layer (2) are located between heat-seal layer (3) and corona layer (4), set up a plurality of incisions (5) that are the setting of spill word on membrane main part (1), incision (5) are including horizontal portion (6) and vertical portion (7) that are located horizontal portion (6) both sides, the length of vertical portion (7) is located between 2cm to 3cm, the length of horizontal portion (6) is located between 8cm to 10 cm.

2. The packaging bag film as claimed in claim 1, wherein: the film body (1) is provided with a plurality of circular arc trimming edges (8) communicated with two surfaces of the film body, and the two circular arc trimming edges (8) are symmetrically arranged and are respectively communicated with the top ends of two vertical parts (7) on the same notch (5).

3. The packaging bag film as claimed in claim 1, wherein: the core layer (2) comprises a two-way stretching film layer (9), a shape-retaining layer (10) and a shock-resistant layer (11) which are arranged in sequence.

4. The packaging bag film as claimed in claim 3, wherein: the biaxially oriented film layer (9) is a biaxially oriented polypropylene layer, the shape-retaining layer (10) is a CPP layer, and the impact-resistant layer (11) is an LLDPE layer.

5. A packaging bag using the packaging bag film according to any one of claims 1 to 4, characterized in that: comprises a bag body (12), and the incisions (5) are positioned on two sides of the bag body (12).

6. The package of claim 5, wherein: the distance between the opening edge of the bag body (12) and the transverse part (6) of the cut (5) is between 5cm and 8 cm.