CN208052769U - The paper-plastic composite film and paper and plastics compound bag of high-stiffness - Google Patents

Abstract

The utility model discloses a kind of paper-plastic composite film of high-stiffness and paper and plastics compound bags.The paper-plastic composite film of the high-stiffness includes outer barrier layer, paper layer, the second adhesive layer, inner barrier layer, third adhesive layer and hot sealing layer successively, and the outer barrier layer is pet film layer, and the inner barrier layer is aluminium foil layer.The paper-plastic composite film of the application is provided with barrier material in paper layer both sides, and wherein aluminium foil has performances, the materials such as moisture-proof, airtight, shading, guarantor's perfume (or spice) well-pressed；And polyethylene terephthalate has good mechanical property, impact strength high, folding resistance is good, and the permeability of gas and vapor is low, has excellent resistance gas and water, oil and peculiar smell performance；Under the duplicate protection of aluminium foil and polyethylene terephthalate, paper layer can remain the intensity of itself, the more excellent barrier property of the paper-plastic composite film to assign the application and well-pressed degree.

Description

The paper-plastic composite film and paper and plastics compound bag of high-stiffness

Technical field

The utility model belongs to packaging material field, and in particular to a kind of paper-plastic composite film and paper-plastic stick of high-stiffness Bag.

Background technology

Can the property of commodity outer packing obtain properly preserving to commodity has great influence, is especially used for packaged food When, outer packing must have excellent barrier property；Many frangible products are not pressure-resistant, it can also require that outer packing has centainly well-pressed Degree.Good barrier property and well-pressed degree are capable of providing using the outer packaging bag of paper-plastic stick film preparation.

Such as application No. is the Chinese invention patent applications of CN 201110304478.X to disclose a kind of paper-plastic composite film, The paper-plastic composite film is at least glued including the first resin layer, paper layer, the second resin layer, the first adhesive layer, barrier layer, second successively Close layer and third resin layer, wherein paper layer includes brown paper, and the first resin layer, the second resin layer and third resin layer include poly- Vinyl, the first adhesive layer and the second adhesive layer include polyvinyl adhesive material, and barrier layer includes ethylene vinyl alcohol copolymer Object.

The paper-plastic composite film exists following insufficient：The ethylene-vinyl alcohol copolymer that only barrier layer uses in each layer has Barrier property and well-pressed degree, other resin layers of polythene material due to being made, and barrier property is poor, and the material is soft, substantially Without well-pressed performance, cause the barrier property of the paper-plastic composite film and well-pressed degree poor.

Utility model content

It is multiple that present invention purpose is to provide a kind of paper of the high-stiffness with good barrier and higher well-pressed degree Close film and paper and plastics compound bag.

For achieving the above object, the technical solution of the application is as follows：

A kind of paper-plastic composite film of high-stiffness includes outer barrier layer, paper layer, the second adhesive layer, inner barrier layer, third successively Adhesive layer and hot sealing layer, the outer barrier layer are pet film layer, and the inner barrier layer is aluminium Layers of foil.

The paper-plastic composite film of the application is provided with barrier material in paper layer both sides, and wherein aluminium foil has moisture-proof, airtight, screening Performances, the materials such as light, guarantor's perfume (or spice) are well-pressed；And polyethylene terephthalate has good mechanical property, impact strength high, folding Property it is good, the permeability of gas and vapor is low, have excellent resistance gas and water, oil and peculiar smell performance；In aluminium foil and poly- terephthaldehyde Under the duplicate protection of sour glycol ester, paper layer can remain the intensity of itself, to assign the paper-plastic composite film of the application More excellent barrier property and well-pressed degree.

In the paper-plastic composite film of above-mentioned high-stiffness, second adhesive layer is polyacrylate pressure-sensitive layer.It is poly- Acrylate pressure-sensitive adhesive layer dialogue brown paper has good adhesive property.

In the paper-plastic composite film of above-mentioned high-stiffness, the third adhesive layer is that ethylene-beta-unsaturated esters copolymer is thin Film layer.The bonding force of ethylene-beta-unsaturated esters copolymer film and aluminium foil is fabulous, and adhesive property is strong.

In the paper-plastic composite film of above-mentioned high-stiffness, the hot sealing layer is density polyethylene film with high layer.High density Polyethylene not only has good heat sealability, and the film formed also has good well-pressed degree.

In the paper-plastic composite film of above-mentioned high-stiffness, it is also equipped with ink layer and the successively between outer barrier layer and paper layer One adhesive layer.

In the paper-plastic composite film of above-mentioned high-stiffness, first adhesive layer is polyacrylate pressure-sensitive layer.

Present invention also provides a kind of paper and plastics compound bag of high-stiffness, which uses height described herein The paper-plastic composite film of deflection is made.

The paper and plastics compound bag of the high-stiffness includes a front, a reverse side, a bottom surface, the front, reverse side and bottom Face mutually seals connection；The bottom surface carries a broken line, which has makes paper and plastics compound bag keep flat along the broken line doubling Folding position, and about the broken line in angle be arranged and make paper and plastics compound bag stand spread position out.

In the paper and plastics compound bag of above-mentioned high-stiffness, the bottom surface is fixed with for making paper and plastics compound bag keep standing Support bar.

In the paper and plastics compound bag of above-mentioned high-stiffness, the support bar includes first be arranged symmetrically about the broken line Branch's stay and second branch's stay are equipped with shackle member, are being clamped between first branch's stay and the end of second branch's stay Side of the part far from broken line is additionally provided with flexible connecting member between first branch's stay and the end of second branch's stay.

Compared with prior art, the beneficial effects of the utility model are：

The paper-plastic composite film of the application is provided with barrier material in paper layer both sides, and wherein aluminium foil has moisture-proof, airtight, screening Performances, the materials such as light, guarantor's perfume (or spice) are well-pressed；And polyethylene terephthalate has good mechanical property, impact strength high, folding Property it is good, the permeability of gas and vapor is low, have excellent resistance gas and water, oil and peculiar smell performance；In aluminium foil and poly- terephthaldehyde Under the duplicate protection of sour glycol ester, paper layer can remain the intensity of itself, to assign the paper-plastic composite film of the application More excellent barrier property and well-pressed degree.

Description of the drawings

Fig. 1 is a kind of structural schematic diagram of the paper-plastic composite film of high-stiffness of the utility model；

Fig. 2 is a kind of structural schematic diagram of the paper and plastics compound bag of high-stiffness of the utility model；

Fig. 3 is a kind of structural schematic diagram of the paper and plastics compound bag of high-stiffness of the utility model under another visual angle；

Fig. 4 is structural schematic diagram of the support bar shown in Fig. 3 under another visual angle.

Specific implementation mode

The technical solution of the utility model is described in further details with reference to the accompanying drawings and detailed description.

Embodiment 1

As shown in Figure 1, a kind of paper-plastic composite film of high-stiffness of the present embodiment, ecto-entad are followed successively by：Outer barrier layer 100, Ink layer 200, the first adhesive layer 300, paper layer 400, the second adhesive layer 500, inner barrier layer 600, third adhesive layer 700 and heat-sealing Layer 800.

In the present embodiment, outer barrier layer 100 is pet film layer, polyethylene terephthalate Ester has a good mechanical property, and impact strength is high, and folding resistance is good, and the permeability of gas and vapor is low, have excellent choke, Water, oil and peculiar smell performance；The excellent barrier property of paper-plastic composite film and well-pressed degree can be assigned.

In the present embodiment, paper layer 400 is using the white brown paper with high well-pressed degree, the first adhesive layer of 400 both sides of paper layer 300 and second adhesive layer 500 be all made of polyacrylate pressure-sensitive, polyacrylate pressure-sensitive dialogue brown paper has good Adhesive property.

In the present embodiment, inner barrier layer 600 uses aluminium foil, aluminium foil to have moisture-proof, airtight, shading, protect the performances such as perfume (or spice), material It is well-pressed, it can also assign the excellent barrier property of paper-plastic composite film and well-pressed degree.

In the present embodiment, third adhesive layer 700 uses ethylene-beta-unsaturated esters copolymer film, ethylene-beta-unsaturated esters copolymerization The bonding force of object film and aluminium foil is fabulous, and adhesive property is strong.

In the present embodiment, hot sealing layer 800 uses density polyethylene film with high, high density polyethylene (HDPE) not only to have good heat Feng Xing, the film formed also have good well-pressed degree.

Embodiment 2

As shown in Fig. 2, a kind of paper and plastics compound bag of high-stiffness of the present embodiment, which uses the height of embodiment 1 The paper-plastic composite film of deflection is made.

As shown in Figures 2 and 3, which includes a front 1, and a reverse side 2, front 1 and reverse side 2 are rectangular； Front 1 and reverse side 2 can need to be arranged to arbitrary shape according to the shape of packaging bag, but stand for the ease of packaging bag, front 1 Bottom side with reverse side 2 should be smooth.

It seals and fixes between front 1 and two relative sides of reverse side 2, a bottom is additionally provided in the bottom side in front 1 and reverse side 2 Face 3, bottom surface 3 is also fixed with front 1 and the heat-sealing of reverse side 2 respectively, to form pocket-like.

As shown in Fig. 3 and Fig. 2,3 center of bottom surface carries a broken line 31, and bottom surface 3 is fixed with for making paper and plastics compound bag protect Hold the support bar 4 of standing.

As shown in Figure 3 and Figure 4, in the present embodiment, support bar 4 includes first branch's stay being arranged symmetrically about broken line 31 41 and the second branch's stay 42, in support bar 4 towards the side of bottom surface 3, the end of first branch's stay 41 is equipped with buckle 43, and The end of second branch's stay 42 is then equipped with the card slot for accommodating the buckle 43, is connected and fixed between card slot and buckle 43； And it is additionally provided with flexibility between side of the support bar 4 far from bottom surface 3, first branch's stay 41 and the end of second branch's stay 42 Interconnecting piece 44, which can fold with bottom surface 3 and be bent, and toughness is stronger, will not be broken.

Claims (10)

1. a kind of paper-plastic composite film of high-stiffness, which is characterized in that include outer barrier layer, paper layer, the second adhesive layer, internal resistance successively Interlayer, third adhesive layer and hot sealing layer, the outer barrier layer are pet film layer, the internal resistance Interlayer is aluminium foil layer.

2. the paper-plastic composite film of high-stiffness as described in claim 1, which is characterized in that second adhesive layer is polypropylene Acid esters pressure-sensitive adhesive layer.

3. the paper-plastic composite film of high-stiffness as described in claim 1, which is characterized in that the third adhesive layer is ethylene- Beta-unsaturated esters copolymer film layer.

4. the paper-plastic composite film of high-stiffness as described in claim 1, which is characterized in that the hot sealing layer is high-density polyethylene Alkene film layer.

5. the paper-plastic composite film of the high-stiffness as described in any one of claim 1-4, which is characterized in that in outer barrier layer and Ink layer and the first adhesive layer are also equipped between paper layer successively.

6. the paper-plastic composite film of high-stiffness as claimed in claim 5, which is characterized in that first adhesive layer is polypropylene Acid esters pressure-sensitive adhesive layer.

7. a kind of paper and plastics compound bag of high-stiffness, which is characterized in that multiple using the paper of the high-stiffness as described in claim 1-6 Film is closed to be made.

8. the paper and plastics compound bag of high-stiffness as claimed in claim 7, which is characterized in that including a front, a reverse side, a bottom Face, the front, reverse side and bottom surface mutually seal connection；The bottom surface carries a broken line, which has along the broken line Doubling and the folding position for making paper and plastics compound bag keep flat, and be arranged in angle about the broken line and the booth that makes paper and plastics compound bag stand Open position.

9. the paper and plastics compound bag of high-stiffness as claimed in claim 8, which is characterized in that the bottom surface is fixed with for making paper It moulds complex pocket and keeps the support bar stood.

10. the paper and plastics compound bag of high-stiffness as claimed in claim 9, which is characterized in that the support bar includes about this The first branch's stay and second branch's stay that broken line is arranged symmetrically, between first branch's stay and the end of second branch's stay Equipped with shackle member, between side of the shackle member far from broken line, first branch's stay and the end of second branch's stay It is additionally provided with flexible connecting member.