CN208515115U - A kind of packaging seal easily takes off composite membrane - Google Patents

Abstract

The utility model relates to a kind of packaging seals easily to take off composite membrane, be related to packaging seal technical field, and how the existing in the prior art of solution seal and easily take off with the prefabricated packaging cup or pallet of unlike material.The composite membrane include the printing layer being sequentially stacked from outside to inside, barrier layer and can with the internal layer of the prefabricated packaging heat-sealing of unlike material, it is compound by adhesive layer between adjacent two layers in the printing layer, the barrier layer and the internal layer.The utility model can be sealed with the prefabricated packaging of unlike material, widened the use scope of composite membrane, reduced the warehouse cost of the different supplementary materials for making prefabricated packaging, and then improved resource utilization.

Description

A kind of packaging seal easily takes off composite membrane

Technical field

The utility model relates to packaging seal technical fields more particularly to a kind of packaging seal easily to take off composite membrane.

Background technique

The composite membrane of existing packaging seal can only all meet PP (polypropylene), PS (polystyrene), PVC in the market The heat-sealing sealing of (polyvinyl chloride) any one material or in which the equipment for prepn. of yoghurt or pallet of two kinds of material production.Existing composite membrane Defect is: (1) in order to meet the requirement that unlike material structure seals, needing to carry out a variety of supplementary material buyings；(2) due to needing The standby a variety of supplementary materials in library, fund are also overstock, and storage space is occupied.(3) exist because being obtained to the prefabricated packaging material information of client It takes mistake and causes the composite membrane of production that cannot seal with prefabricated packaging cup or pallet, so as to cause the wasting of resources.For example, objective The practical equipment for prepn. of yoghurt material at family is PP glasss, but obtaining information is PS glass, then according to PP glass seal the composite membrane that does of requirement with regard to because For cannot with PS glasss heat-sealing and scrap processing, this can all bring biggish loss to both sides.

Utility model content

The technical problem to be solved by the utility model is to provide a kind of packaging seals easily to take off composite membrane, can be from different materials The prefabricated packaging cup or pallet of matter seal and easily take off.

The technical solution that the utility model solves above-mentioned technical problem is as follows: a kind of packaging seal easily takes off composite membrane, including Printing layer, barrier layer and the internal layer that can be sealed with the prefabricated packaging of unlike material being sequentially stacked from outside to inside, the print It is compound by adhesive layer between adjacent two layers in brush layer, the barrier layer and the internal layer.

The beneficial effects of the utility model are: by the setting of printing layer, barrier layer and internal layer, so that printing layer can be by Required content need to be printed, barrier layer can obstruct the object outside packaging prefabricated after heat-sealing in outer, and internal layer can be with unlike material Prefabricated packaging heat-sealing, widened the use scope of composite membrane, reduced the storehouse of the different supplementary materials for making prefabricated packaging Cost is stored up, and then is improved resource utilization.

Based on the above technical solution, the utility model can also do following improvement.

Further, the packaging seal easily takes off composite membrane, and the internal layer is modified PE film.

Beneficial effect using above-mentioned further scheme is that modified PE film has good extensibility, medium-resistance and excellent Different heat sealability, so as to be sealed with the prefabricated packaging of unlike material.

Further, the packaging seal easily takes off composite membrane, and the modified PE film uses the poly- of two kinds or more different models Feed ethylene grain carries out blending extrusion blow molding.

Beneficial effect using above-mentioned further scheme be by blending and modifying, can make the modified PE film to be formed from it is different The prefabricated packaging of material seals.

Further, the packaging seal easily takes off composite membrane, the polyethylene material being blended as two kinds or more different models Grain stirring at normal temperature is uniform.

Further, the packaging seal easily takes off composite membrane, and the modified PE film includes the 2426H of formula rate by weight 80~90 parts of pellet, 70~80 parts of 2420H pellet, 100~120 parts of 30E714 pellet, 50~60 parts of XB753 pellet, 30E734 Expect grain 80~90.

Further, the packaging seal easily takes off composite membrane, and the modified PE film and the heat seal strength of the prefabricated packaging are 8-15N/15mm。

Further, the packaging seal easily takes off composite membrane, the prefabricated packaging using PP polypropylene, PS polystyrene and Any one in PVC polyvinyl chloride.

Further, the packaging seal easily takes off composite membrane, and the printing layer uses biaxial tension oriented polypropylene, two-way drawing Stretch one of polyester or biaxial tension nylon.

Further, the packaging seal easily takes off composite membrane, and the barrier layer is using vacuum aluminum-coated biaxial stretching polyester, plating silicon One of biaxial stretching polyester or aluminium foil.

Further, the packaging seal easily takes off composite membrane, and the adhesive layer uses adhesive for polyurethane.

Detailed description of the invention

Fig. 1 is the utility model section structural schematic diagram

In attached drawing, parts list represented by the reference numerals are as follows:

1, printing layer, 2, barrier layer, 3, internal layer, 4, adhesive layer, the 41, first adhesive layer, the 42, second adhesive layer.

Specific embodiment

The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical It is novel, it is not intended to limit the scope of the utility model.

Referring to Figure 1, the utility model provides a kind of packaging seal and easily takes off composite membrane, including sequence stacking from outside to inside is set Printing layer 1, barrier layer 2 and the internal layer 3 that can be sealed with the prefabricated packaging of unlike material set.Printing layer 1, barrier layer 2 and internal layer 3 It is compound by adhesive layer 4 between middle adjacent two layers.

The composite membrane of the utility model, by printing layer 1, the setting of barrier layer 2 and internal layer 3, so that printing layer 1 can be by Required content need to be printed, barrier layer 2 can obstruct the object outside packaging prefabricated after heat-sealing in outer, and internal layer 3 can be from different materials The prefabricated packaging of matter seals, and has widened the use scope of composite membrane, has reduced the different supplementary materials for making prefabricated packaging Warehouse cost, and then improve resource utilization.

In one embodiment, internal layer 3 is modified PE film.

Further, modified PE film carries out blending extrusion blow molding using the polyethylene material grain of two kinds or more different models.

Further, be blended for the polyethylene material grain stirring at normal temperature of two kinds or more different models it is uniform.Change to reduce The difficulty of processing of property PE film, advantageously reduces processing cost.

Further, modified PE film includes 80~90 parts of the 2426H pellet of formula rate by weight, 2420H pellet 70 ~80 parts, 100~120 parts of 30E714 pellet, 50~60 parts of XB753 pellet, 30E734 material grain 80~90.

Specifically, wherein 2426H pellet, 2420H pellet, 30E714 pellet, XB753 pellet, 30E734 pellet are poly- The various material grain shapes number of ethylene.

The PE film preparation technique of the preparation process of modified PE film dawn known to those skilled in the art, only the utility model The constituent of middle modified PE film is different.On PE inflation film manufacturing machine, by various model material grains install proportion parts by weight on hopper on After material, and stir evenly at normal temperature.Then plasticizing is carried out to uniformly mixed material grain for 180-210 DEG C according to extrusion temperature to squeeze Out.Then inflation traction → vane cooling → herringbone traction → sided corona treatment → film take-up blow molding process is successively executed, finally Modified PE film is made.Wherein screw speed is 300r-320r/mi n, blow-up ratio 2.5:1.

Further, modified PE film and the heat seal strength of prefabricated packaging are 8-15N/15mm.

Specifically, shutting the heat seal strength that cannot be opened is >=40N/15mm, it is easy as heat seal strength≤3N/15mm Now seal bad, gas leak phenomenon.To which, the heat seal strength of the utility model can reach in use, can seal can also Enough purposes easily taken off.

Further, prefabricated packaging is using any one in PP polypropylene, PS polystyrene and PVC polyvinyl chloride.

Embodiment one, the formula of modified PE film and main technologic parameters are as follows: 80 parts of 2426H pellet, 2420H pellet 70 Part, 100 parts of 30E714 pellet, 50 parts of XB753 pellet, 30E734 expect 80 parts of progress blending extrusion blow moldings of grain, according to extrusion temperature 185 DEG C, screw speed is 300r/mi n, blow-up ratio 2.5:1.The modification with a thickness of 60 μm (conventional suitable thicknesses) of production PE film.Modified PE film is respectively 8-10N/15mm with PVC material heat seal strength after tested, is 9-11N/ with PP material heat seal strength 15mm is 8-9N/15mm with PS material heat seal strength.Wherein PVC, PP and PS are the material for making prefabricated packaging, to change Property PE can with unlike material make prefabricated packaging realize seal.

Embodiment two, the formula of modified PE film and main technologic parameters are as follows: 90 parts of 2426H pellet, 2420H pellet 80 Part, 120 parts of 30E714 pellet, 60 parts of XB753 pellet, 30E734 expect 90 parts of progress blending extrusion blow moldings of grain, according to extrusion temperature 185 DEG C, screw speed is 300r/mi n, blow-up ratio 2.5:1.The modification with a thickness of 60 μm (conventional suitable thicknesses) of production PE film.Modified PE film is respectively 10-12N/15mm with PVC material heat seal strength after tested, is 13- with PP material heat seal strength 15N/15mm is 10-12N/15mm with PS material heat seal strength.The prefabricated packaging that can be made with unlike material to modified PE Realize heat-sealing.

Embodiment three, the formula of modified PE film and main technologic parameters are as follows: 90 parts of 2426H pellet, 2420H pellet 80 Part, 120 parts of 30E714 pellet, 60 parts of XB753 pellet, 30E734 expect 90 parts of progress blending extrusion blow moldings of grain, according to extrusion temperature 220 DEG C, screw speed is 320r/mi n, blow-up ratio 2.5:1.The modification with a thickness of 60 μm (conventional suitable thicknesses) of production PE film.Modified PE film is respectively 10-12N/15mm with PVC material heat seal strength after tested, is 13- with PP material heat seal strength 15N/15mm is 10-12N/15mm with PS material heat seal strength.The prefabricated packaging that can be made with unlike material to modified PE Realize heat-sealing.

By the comparison of embodiment two and embodiment three it is found that changing in the identical situation of formula constituent of modified PE film The parameter for becoming production technology, will not impact heat seal strength.

By the comparison of embodiment one to embodiment three it is found that modified PE film and the heat seal strength of a variety of materials are in formula group The expected requirement of packaging can be reached in part and process parameters range, and with 30E714 pellet, XB753 pellet, 30E734 material grain The increase of component, the heat seal strength of modified PE film also have enhancing trend.

In some embodiments, printing layer 1 is using biaxial tension oriented polypropylene, biaxial stretching polyester or biaxial tension Buddhist nun Any one in dragon.So as to excellent tensile strength and printability.

In some embodiments, barrier layer 2 is using vacuum aluminum-coated biaxial stretching polyester, plating silicon biaxial stretching polyester or aluminium foil In any one.So as to the blocking oxygen and vapor of replacement.

In some embodiments, adhesive layer 4 uses adhesive for polyurethane.

Adhesive layer 4 includes the first adhesive layer 41 and the second adhesive layer 42.Wherein, the first adhesive layer 41 is located at 1 He of printing layer Between barrier layer 2, the second adhesive layer 42 is between barrier layer 2 and internal layer 3.The main function of adhesive layer 4 is by each layer former material Material links together, and outer layer 1, barrier layer 2 and internal layer 3 is made to become the one of firm connection.Adhesive for polyurethane has cementability By force, heat-resist, the characteristics such as good, stable chemical performance of wholesomeness.

The preparation method of the utility model composite membrane is to select biaxial tension oriented polypropylene, biaxial stretching polyester or double Any one material into tensile nylon makes the film to be formed as printing layer 1.Select vacuum aluminum-coated biaxial stretching polyester, plating Any one material in silicon biaxial stretching polyester or aluminium foil makes the film to be formed as barrier layer 2.It is made by blending and modifying Modified PE film is formed as internal layer 3.The outer surface of printing layer 1 is printed, and by the inner surface of printing layer 1 and barrier layer 2 Outer surface by the first adhesive layer 41 bond it is compound.Then the outer surface of the inner surface of barrier layer 2 and internal layer 3 is passed through Second adhesive layer 42 bond compound.

When in use, it can seal from different prefabricated packaging cups or pallet and easily take off since internal layer 3 has.Therefore this reality Heat-sealing can be packed with the prefabricated of unlike material with Novel composite membrane, widen the use scope of composite membrane, reduced for making Make the warehouse cost of the different supplementary materials of prefabricated packaging, and then improves resource utilization.

In the description of the present invention, it should be understood that the orientation of the instructions such as term " on ", "lower", "inner", "outside" Or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model and simplification is retouched It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, Therefore it should not be understood as limiting the present invention.In the description of the present invention, the meaning of " plurality " is two or more, It is limited unless otherwise clearly tool.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be and be directly connected to, can also be indirectly connected with by intermediary, can be the connection inside two elements or two The interaction relationship of element.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition Concrete meaning in utility model.

The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model Within the scope of shield.

Claims (7)

1. a kind of packaging seal easily takes off composite membrane, which is characterized in that including be sequentially stacked from outside to inside printing layer (1), Barrier layer (2) and can with unlike material it is prefabricated packaging heat-sealing internal layer (3), the printing layer (1), the barrier layer (2) and It is compound by adhesive layer (4) between adjacent two layers in the internal layer (3).

2. a kind of packaging seal easily takes off composite membrane according to claim 1, which is characterized in that the internal layer (3) is modified PE Film.

3. a kind of packaging seal easily takes off composite membrane according to claim 2, which is characterized in that the modified PE film with it is described pre- The heat seal strength of system packaging is 8-15N/15mm.

4. a kind of packaging seal easily takes off composite membrane according to claim 1, which is characterized in that the prefabricated packaging is poly- using PP Any one in propylene, PS polystyrene and PVC polyvinyl chloride.

5. a kind of packaging seal easily takes off composite membrane according to claim 1, which is characterized in that the printing layer (1) is using double To any one stretched in oriented polypropylene, biaxial stretching polyester or biaxial tension nylon.

6. a kind of packaging seal easily takes off composite membrane according to claim 1, which is characterized in that the barrier layer (2) is using true Sky aluminize biaxial stretching polyester, plating silicon biaxial stretching polyester or aluminium foil in any one.

7. a kind of packaging seal easily takes off composite membrane according to claim 1, which is characterized in that the adhesive layer (4) is using poly- Urethane adhesive.