CN209241682U - One kind is resistance to fall self-support bellows pocket - Google Patents

Abstract

This application involves food package film fields, fall self-support bellows pocket more particularly to one kind is resistance to, the bellows pocket, including bag face, the two sides in this bag of face are equipped with to the organ side of bag interior folding, the bag face is made of trilamellar membrane layer, is bonded by adhesive, and the film layer in the bag face is successively are as follows: pet film layer, aluminum foil film layer and layer of polypropylene foil.The organ Bian Yousi tunic layer is constituted, and is bonded by the adhesive, the film layer on the organ side is successively are as follows: pet film layer, aluminum foil film layer, polyamide laminate film and layer of polypropylene foil.The resistance to self-support bellows pocket that falls of the utility model is by eminence fall-down test, compared with prior art, has the advantages that resistance to fall prevents breaking.

Description

One kind is resistance to fall self-support bellows pocket

Technical field

The utility model relates to food package film fields, and in particular to one kind is resistance to fall self-support bellows pocket.

Background technique

Packaging bag in life is generally referred to as the internal sack that there is certain space to pack various articles, is easy to article It saves, convenient transportation is widely used among all trades and professions, applies relatively broad, apoplexy in food pack field Qin bag refers to that the both sides of the edge of bag body are folded into toward bag body inner face, reduces the sack of space occupied.

For the bellows pocket of field of food, bellows pocket not only to erect naturally come, but also need it is good every Water and oxygen barrier function, if the content that bellows pocket loads will carry out the boiling of high temperature, bellows pocket also needs to have resistant to high temperature Ability.Therefore, bellows pocket generally uses the composite film of pet film layer to form, bag face and organ The organ side that bag folds into uses same composite film.Assuming that bag face and two side organ sides have used nylon film layer, organ Bag is after being loaded with the content of constant weight, and when falling from eminence, more pressure are often born on organ side, and organ side goes out Existing breakage keeps content unrestrained.

Utility model content

The utility model aim be to provide it is a kind of it is resistance to fall self-support bellows pocket, there is certain resistance to ability of falling, fall from eminence It falls and is not easy broken bag occur.

The technical solution adopted in the utility model, which is that one kind is resistance to, falls self-support bellows pocket, including bag face, and the two sides in this bag of face are set The organ side of oriented bag interior folding, the bag face are made of trilamellar membrane layer, are bonded by adhesive, and the film layer in the bag face is successively Are as follows: pet film layer, aluminum foil film layer and layer of polypropylene foil.The organ Bian Yousi tunic layer structure At being bonded by the adhesive, the film layer on the organ side is successively are as follows: pet film layer, aluminium foil Film layer, polyamide laminate film and layer of polypropylene foil.

The polyamide laminate film is High-barrier nylon film layer.The High-barrier nylon film layer that the utility model uses has The good transparency and paracentesis resistance, high-barrier nylon are its barrier properties not with the rising of humidity as the maximum feature of film layer And decline, it is resistance to fall self-support bellows pocket load beverage when, be also able to maintain good stability.

Preferably, the adhesive is adhesive for polyurethane.Polyurethane itself has relatively stable change as adhesive Property is learned, acid-fast alkali-proof, the film layer physical strength being combined into is high, can guarantee product energy long-time stable use without sending out Raw deformation.

Preferably, the outermost layer of the film layer in the bag face is pet film layer, the bag face The innermost layer of film layer is layer of polypropylene foil.

Preferably, the outermost layer of the film layer on the organ side is pet film layer, the organ The innermost layer of the film layer on side is layer of polypropylene foil.Pet film layer is as the resistance to self-support bellows pocket of falling Outer membrane, compared to using layer of polypropylene foil as outer membrane, from the point of view of the resistance to appearance for falling self-support bellows pocket, glossiness is preferable, With certain ornamental value.

Preferably, the pet film layer, aluminum foil film layer and polypropylene of the film layer in the bag face The thickness of film layer is successively are as follows: 11-13,6-8,60-90 microns.

Preferably, the pet film layer, aluminum foil film layer and polypropylene of the film layer in the bag face The thickness of film layer is successively are as follows: 12,7,85 microns.

Preferably, pet film layer, aluminum foil film layer, the nylon of the film layer on the organ side are thin The thickness of film layer and layer of polypropylene foil is followed successively by 11-13,6-8,14-16,60-80 microns.

Preferably, pet film layer, aluminum foil film layer, the nylon of the film layer on the organ side are thin The thickness of film layer and layer of polypropylene foil is followed successively by 12,7,15,70 microns.

The thin film layer thickness of selection is moderate, is relatively easy to purchase on the market, and price is more cheap, so that this is practical new The resistance to self-support bellows pocket that falls of type can have certain toughness, erect to come naturally, and have certain isolating power.

Compared with prior art, the utility model have it is following the utility model has the advantages that

The utility model with common bellows pocket in the prior art as a comparison case, after having filled constant weight content, Fall naturally for 3 times from 1 meter high of place respectively, test its broken bag rate, common bellows pocket broken bag rate 50% or so, and The resistance to self-support bellows pocket that falls of the utility model is only 10% or so.In the falling process of bellows pocket, the position for occurring breaking by a fall is equal It concentrates on organ side, illustrates that falling main stress point is concentrated mainly on organ side, wind is compared in the bag face part in the utility model Qin rim portion has lacked polyamide laminate film, and when falling, pressure can be shifted more to a bag face part, bears pressure by bag face, makes Organ side stress is obtained to reduce.Therefore, the resistance to self-support bellows pocket that falls has certain resistance to ability of falling, and existing skill is compared when falling from eminence It is lower that broken bag probability occurs in the common bellows pocket of art.

Detailed description of the invention

The utility model is described in further detail with reference to the accompanying drawings and detailed description.

Fig. 1 is the bag face mask layer structure chart of the resistance to preferred embodiment for falling self-support bellows pocket of the utility model；

Fig. 2 is the organ side film layer structure figure of the resistance to preferred embodiment for falling self-support bellows pocket of the utility model；

Fig. 3 is the overall structure figure of the resistance to preferred embodiment for falling self-support bellows pocket of the utility model；

In figure:

1, pet film layer 2, aluminum foil film layer 3, layer of polypropylene foil

4, polyamide laminate film 11, bag face 12, organ side

Specific embodiment

Embodiment 1

As shown in figure 3, the utility model one kind is resistance to fall self-support bellows pocket, bellows pocket includes bag face 11, the two sides in this bag of face Equipped with to the organ side 12 of bag interior folding.

As shown in Figure 1, the resistance to organ side for falling the invagination of self-support bellows pocket of the present embodiment, the organ side is by trilamellar membrane layer structure At, with bellows pocket load content be it is interior, the outer surface in bag face be it is outer, the film layer of the film layer structure on organ side from outside to inside according to It is secondary are as follows: pet film layer 1, aluminum foil film layer 2 and layer of polypropylene foil 3 are above-mentioned adjacent thin two-by-two Film layer is folded by adhesive for polyurethane adhesive layer.Pet film layer 1, aluminum foil film layer 2 and poly- The thickness of Polypropylene film layer 3 is followed successively by 12,7,85 microns.

As shown in Fig. 2, the resistance to bag face for falling self-support bellows pocket of the present embodiment, this bag of face is made of four tunic layers, with organ The content of packed load be it is interior, the outer surface in bag face be it is outer, the film layer of this bag of face from outside to inside is successively are as follows: poly terephthalic acid second Terephthalate films layer 1, aluminum foil film layer 2, polyamide laminate film 4 and layer of polypropylene foil 3, above-mentioned film layer two-by-two pass through polyurethane adhesive Glutinous agent bonding is laminated.Pet film layer 1, aluminum foil film layer 2, polyamide laminate film 4 and polypropylene The thickness of film layer 3 is followed successively by 12,7,15,70 microns, and polyamide laminate film therein 4 is High-barrier nylon film layer.

The bellows pocket of the present embodiment and common bellows pocket in the prior art carry out breaking experiment by a fall respectively, test specifically: After having filled constant weight content, is fallen naturally 3 times from 1 meter high respectively, observes it and fall rear situation, carry out many experiments, Count the broken bag rate of the two.By experiment, common bellows pocket broken bag rate in the prior art is 50% or so, the wind of the present embodiment Qin bag is 10%, it was demonstrated that the utility model it is resistance to fall bellows pocket really and have it is certain it is resistance to fall anti-broken ability, aloft fall not It is easy to appear broken bag.

In other some embodiments, the pet film layer 1 in bag face is micro- with a thickness of 11 or 13 Rice, for aluminum foil film layer 2 with a thickness of 6 or 8 microns, 3 thickness of layer of polypropylene foil is followed successively by 60 or 90 microns, poly- pair of organ side Ethylene terephthalate film layer 1 is with a thickness of 11 or 13 microns, aluminum foil film layer 2 with a thickness of 6 or 8 microns, polyamide laminate film 4 With a thickness of 14 or 16 microns, 3 thickness 60 of layer of polypropylene foil or 80 microns.

Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected Protect range limitation, those skilled in the art should understand that, can modify to technical solution of the present invention or Equivalent replacement, without departing from the spirit and scope of technical solution of the present invention.

Claims (9)

1. one kind is resistance to fall self-support bellows pocket, including bag face, the two sides in this bag of face are equipped with to the organ side of bag interior folding, and feature exists In:

The bag face is made of trilamellar membrane layer, is bonded by adhesive, and the film layer in the bag face is successively are as follows: poly terephthalic acid second Terephthalate films layer, aluminum foil film layer and layer of polypropylene foil；

The organ Bian Yousi tunic layer is constituted, and is bonded by the adhesive, the film layer on the organ side is successively are as follows: poly- to benzene Naphthalate film layer, aluminum foil film layer, polyamide laminate film and layer of polypropylene foil.

2. one kind according to claim 1 is resistance to fall self-support bellows pocket, it is characterised in that:

The polyamide laminate film is High-barrier nylon film layer.

3. one kind according to claim 1 is resistance to fall self-support bellows pocket, it is characterised in that:

The adhesive is adhesive for polyurethane.

4. one kind according to claim 1 is resistance to fall self-support bellows pocket, it is characterised in that:

The outermost layer of the film layer in the bag face is pet film layer, the innermost layer of the film layer in the bag face For layer of polypropylene foil.

5. one kind according to claim 1 is resistance to fall self-support bellows pocket, it is characterised in that:

The outermost layer of the film layer on the organ side is pet film layer, and the film layer on the organ side is most Internal layer is layer of polypropylene foil.

6. one kind according to claim 1 is resistance to fall self-support bellows pocket, it is characterised in that:

The thickness of the pet film layer of the film layer in the bag face, aluminum foil film layer and layer of polypropylene foil Successively are as follows: 11-13,6-8,60-90 microns.

7. one kind according to claim 6 is resistance to fall self-support bellows pocket, it is characterised in that:

The thickness of the pet film layer of the film layer in the bag face, aluminum foil film layer and layer of polypropylene foil Successively are as follows: 12,7,85 microns.

8. one kind according to claim 1 is resistance to fall self-support bellows pocket, it is characterised in that:

Pet film layer, aluminum foil film layer, the polyamide laminate film and poly- third of the film layer on the organ side The thickness of alkene film layer is followed successively by 11-13,6-8,14-16,60-80 microns.

9. one kind according to claim 8 is resistance to fall self-support bellows pocket, it is characterised in that:

Pet film layer, aluminum foil film layer, the polyamide laminate film and poly- third of the film layer on the organ side The thickness of alkene film layer is followed successively by 12,7,15,70 microns.