CN209141609U - Packaging bag film and packaging bag - Google Patents
Packaging bag film and packaging bag Download PDFInfo
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- CN209141609U CN209141609U CN201821194160.4U CN201821194160U CN209141609U CN 209141609 U CN209141609 U CN 209141609U CN 201821194160 U CN201821194160 U CN 201821194160U CN 209141609 U CN209141609 U CN 209141609U
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Abstract
The utility model discloses a kind of packaging bag film and packaging bags, are related to food machinery field, to optimize its service performance.The packaging bag film includes vinyl hot sealing layer, gluing oxidant layer and auxiliary tearing layer.One side surface of gluing oxidant layer is connected with vinyl hot sealing layer；Auxiliary tearing layer is connected with another side surface of gluing oxidant layer.Wherein, the corresponding position of vinyl hot sealing layer, gluing oxidant layer and auxiliary tearing layer is equipped with easy-torn line.Above-mentioned technical proposal, take full advantage of the characteristic of biaxially oriented film and vinyl heat-sealing layer film, by the low feature of biaxially oriented film stretching molecule orientation, elongation percentage, sufficiently combine with the vinyl heat-sealing good heat sealability of layer film with flexibility, so that this liquid packing machine tearable mouth film had both had good sealing-strength, while but also with the function that finished product is easily torn.
Description
Technical field
The utility model relates to packaging machinery fields, and in particular to a kind of packaging bag film and packaging bag.
Background technique
Liquid automatic-packing machine refers to that, using sheet sealed polyethylene plastic, soy sauce, cooking wine, white wine, disappears at vinegar
The filling apparatus of the liquid products such as malicious beverage, fruit juice, milk, Yoghourt, soymilk.In pouring process, the filling of bag making and liquid is same
When complete.
Liquid automatic packaging process is simple, equipment cost and packaging material relative inexpensiveness, be for many years all kinds of food liquids,
The manufacturing enterprise of beverage is widely used.Above-mentioned technique uses sheet sealed polyethylene plastic, bag making process and pouring process
It carries out simultaneously.
Inventors have found that at least there are following problems in the prior art: due to polyethylene non-refractory, liquid is packed automatically
The sheet polyethylene film used on machine can not make tearable mouth in pouring process.Existing liquid automatic-packing machine is packed out
Liquid product, it is exactly inconvenient for use for perplexing the greatest problem of consumer for many years: to open this packaging, or using scissors
It cuts off, or bites with the teeth out.
Utility model content
The utility model proposes a kind of packaging bag film and packaging bags, to optimize its service performance.
The utility model provides a kind of packaging bag film, comprising:
Vinyl hot sealing layer；
Gluing oxidant layer, a side surface are connected with the vinyl hot sealing layer；And
Tearing layer is assisted, is connected with another side surface of the gluing oxidant layer；
Wherein, the corresponding position of the vinyl hot sealing layer, the gluing oxidant layer and the auxiliary tearing layer, which is equipped with, easily tears
Line.
In some embodiments, the vinyl hot sealing layer is one or more layers.
In some embodiments, the material of the vinyl hot sealing layer is selected from following one or more of them: polyethylene, low
Density polyethylene, high density polyethylene (HDPE), medium density polyethylene, metallocene PE, ethene-vinyl acetate copolymer, ethylene-first
Base acrylic copolymer, vinyl-acrylate copolymer.
In some embodiments, the vinyl hot sealing layer with a thickness of 10um-154um.
In some embodiments, the material of the gluing oxidant layer is selected from following one or more of them: polyurethane adhesive,
Acrylic resin adhesive, polyester resin adhesive, vinyl acetate resins adhesive.
In some embodiments, the gluing oxidant layer with a thickness of 0.5um-5um.
In some embodiments, the auxiliary tearing layer is selected from following one of or several: biaxial tension material layer is closed
At paper, stone paper, paper.
In some embodiments, the auxiliary tearing layer includes biaxial tension material layer, the biaxial tension material layer
Material is selected from following one or more of them: 45 degree of polypropylene bidirection drawing film, polyethylene biaxial stretching film, polyethylene angle cuttings
Stretched film, polyethylene terephthalate biaxial stretching film, polyamide biaxial tension are cut in 45 degree of stretched film, polypropylene angles
Film.
In some embodiments, it is described auxiliary tearing layer with a thickness of 5.5um-45um.
In some embodiments, packaging bag film further include:
Barrier layer is set between the vinyl hot sealing layer and the gluing oxidant layer；And/or the barrier layer is set to institute
It states between gluing oxidant layer and the protective layer；
Wherein, the vinyl hot sealing layer is one or more layers.
In some embodiments, packaging bag film further include:
Barrier layer is set between two layers of vinyl hot sealing layer.
In some embodiments, the barrier layer with a thickness of 0.05um-30um.
In some embodiments, the material of the barrier layer is selected from following one or more of them: aluminizing, ethylene-vinyl
Alcohol copolymer, polyvinyl alcohol, polyvinylidene chloride, polyamide, BOPP/ aluminize, BOPA/ aluminizes, BOPE/ aluminizes, polyethylene 45
It cuts stretched film/aluminizing, 45 degree of angle cutting stretched films of polypropylene/and aluminizes, BOPET/ aluminizes, BOPP/ applies PVA, BOPE/ and applies in degree angle
45 degree of PVA, polyethylene angles cut stretched film/painting PVA, stretched films/painting PVA, BOPET/ painting PVA is cut at 45 degree of angles of polypropylene,
BOPA/ applies PVA, BOPP/ and applies PVDC, BOPE/ painting PVDC, polyethylene 45 degree of angles cuttings 45 degree of stretched film/painting PVDC, polypropylene angles
It cuts stretched film/painting PVDC, BOPET/ and applies PVDC.
In some embodiments, physical mixed has the light screening material for shading in the material of the vinyl hot sealing layer.
In some embodiments, the light screening material is selected from following one or more of them: it aluminizes, white master material, and black
Masterbatch, stone paper masterbatch, nano-titanium oxide, light stabilizer, light barrier, nano-metal-oxide.
In some embodiments, the weight of the light screening material of physical mixed is described in the material of the vinyl hot sealing layer
The 0.001-50% of packaging bag film total weight.
In some embodiments, light shield layer is equipped between the vinyl hot sealing layer and the auxiliary tearing layer.
In some embodiments, the material of the light shield layer is selected from following one or more of them: it aluminizes, white master material,
Black master batch, stone paper masterbatch, nano-titanium oxide, light stabilizer, light barrier, nano-metal-oxide.
In some embodiments, the length of the easy-torn line is 2mm-30mm；Alternatively, the diameter for easily tearing hole is
0.5mm-3mm。
In some embodiments, the overall thickness of the packaging bag film is 60um-160um.
In some embodiments, the notch depth of the easy-torn line is the 1/3-1/5 of the thickness of the packaging bag film.
Another embodiment of the utility model provides a kind of packaging bag, including bag body, and the bag body includes on the utility model
State packaging bag film provided by either a program.
In some embodiments, the bag body is hundred Li Bao or self-standing bag.
In some embodiments, the shape of the easy-torn line are as follows: straight line and/or curve.
In some embodiments, the extension direction of the easy-torn line and the short transverse of the bag body are at angle.
In some embodiments, the angle is greater than 0 ° and is less than or equal to 90 °.
In some embodiments, the length of the easy-torn line is the 1/20-1/4 of the packaging bag width direction.
Above-mentioned technical proposal takes full advantage of the characteristic of biaxially oriented film and vinyl heat-sealing layer film, by two-way drawing
The low feature of film stretching molecule orientation, elongation percentage is stretched, the good heat sealability of layer film is sealed with vinyl and flexibility is abundant
Combine, so that this liquid packing machine tearable mouth film had both had good sealing-strength, while easy but also with finished product
The function of tearing.Above-mentioned technical proposal is used for liquid packing machine, easy-torn line can be directly processed on sheet film, so that filling liquid
Product after body realizes the effect easily torn.
Detailed description of the invention
Attached drawing described herein is used to provide a further understanding of the present invention, and is constituted part of this application,
The exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the improper of the utility model
It limits.In the accompanying drawings:
Fig. 1 is packaging bag film schematic front view provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram for the packaging bag film that an embodiment of the present invention provides；
Fig. 3 is the structural schematic diagram for the packaging bag film that another embodiment of the utility model provides；
Fig. 4 is the structural schematic diagram for the packaging bag film that another embodiment of the utility model provides；
Fig. 5 is the structural schematic diagram for the packaging bag film that the utility model another embodiment provides；
Fig. 6 is the manufacturing method flow diagram for the packaging bag film that another embodiment of the utility model provides.
Specific embodiment
Below with reference to FIG. 1 to FIG. 6, technical scheme provided by the present invention will be described in more detail.
Referring to Fig. 1 to Fig. 5, the utility model embodiment provides a kind of packaging bag film, including vinyl hot sealing layer 1, glue
Adhesive layer 2 and auxiliary tearing layer 3.One side surface of gluing oxidant layer 2 is connected with vinyl hot sealing layer 1；Tearing layer 3 is assisted, with glue
Another side surface of adhesive layer 2 is connected.Wherein, the corresponding position of vinyl hot sealing layer 1, gluing oxidant layer 2 and auxiliary tearing layer 3 is set
There is easy-torn line 4.
Tearing layer 3 is assisted to be selected from following one of or several: biaxial tension material layer, synthetic paper, stone paper, paper.
If tearing layer 3 is assisted to use paper, optionally, paper passes through water-proofing treatment, for example carries out lamination in paper outer surface,
Or apply protection gloss oil etc..
Biaxial tension material layer refers to, the film layer manufactured using biaxial tension casting machine or inflation film manufacturing machine.Biaxial tension
Material be hereinafter described.Filling and bag making is completed on an assembly line using above-mentioned packaging bag film, is produced
Drink after the packaging arrived, outer layer are auxiliary tearing layer 3, and base hot sealing layer 1 is located inside.
The corresponding position of vinyl hot sealing layer 1, gluing oxidant layer 2 and auxiliary tearing layer 3 is equipped with easy-torn line 4 and refers to, vinyl
Hot sealing layer 1, gluing oxidant layer 2 and auxiliary tearing layer 3 are respectively equipped with easy-torn line 4, and fold and set about the easy-torn line of three 4.It is real
In the manufacture of border, for example passes through once-through operation while in each layer being respectively formed on easy-torn line 4.
By testing virtual package of the film on automatic liquid filling machine, the filling performance of the film is good, packing liquid
Finished product afterwards easily tears that effect is good, and property easy to use greatly improves.
The overall thickness of packaging bag film is 60um-160um.Width is such as 200mm-500mm.
In some embodiments, the notch depth of easy-torn line 4 is the 1/3-1/5 of the thickness of packaging bag film.The depth was both
It meets and easily tears requirement, the reliability for also ensuring that packaging bag film is subsequent when being made packaging bag.
In some embodiments, vinyl hot sealing layer 1 is one or more layers.If two layers or two layers or more, such as
It is made of multi-layer co-extruded method；Alternatively, multiple monofilms are bonded using glue-line.
In some embodiments, the material of vinyl hot sealing layer 1 is selected from following one or more of them: polyethylene, low close
Spend polyethylene, high density polyethylene (HDPE), medium density polyethylene, metallocene PE, ethene-vinyl acetate copolymer, ethylene-methyl
Acrylic copolymer, vinyl-acrylate copolymer.Using vinyl hot sealing layer, Feng Wendu, heat seal strength and membrane material are played
The flexibility of material is all good.
In some embodiments, vinyl hot sealing layer 1 with a thickness of 10um-154um.Such as 10um, 20um, 30um,
40um, 50um, 60um, 70um, 80um, 90um, 110um, 120um, 130um, 150um, 152um, 154um etc..
In some embodiments, the material of gluing oxidant layer 2 is selected from following one or more of them: polyurethane adhesive, and third
Olefin(e) acid resin adhesive, polyester resin adhesive, vinyl acetate resins adhesive.
In some embodiments, gluing oxidant layer 2 with a thickness of 0.5um-5um.
In some embodiments, auxiliary tearing layer 3 includes biaxial tension material layer, and the material of biaxial tension material layer is selected from
Following one or more of them: polypropylene bidirection drawing film, polyethylene biaxial stretching film, 45 degree of angles of polyethylene cutting stretched films,
Cut stretched film, polyethylene terephthalate biaxial stretching film, polyamide biaxial stretching film in 45 degree of angles of polypropylene.Above-mentioned material
The auxiliary tearing layer of material can cooperate with the flexibility of vinyl hot sealing layer, so that packaging bag film meets processing request, it is also full
Foot easily tears requirement.
In some embodiments, assist tearing layer 3 with a thickness of 5.5um-45um.
Referring to fig. 2 to Fig. 5, in some embodiments, packaging bag film further includes barrier layer 5, and barrier layer 5 is set to vinyl
Between hot sealing layer 1 and gluing oxidant layer 2.Wherein, vinyl hot sealing layer 1 is one or more layers.Alternatively, barrier layer 5 is set to glue
Between adhesive layer 2 and protective layer.
Referring to fig. 2 to Fig. 5, in further embodiments, packaging bag film further includes barrier layer 5, and barrier layer 5 is set to two layers
Between vinyl hot sealing layer 1.
In some embodiments, barrier layer 5 with a thickness of 0.05um-30um, such as 0.05um, 2um, 4um, 6um,
10um、14um、20um、25um、30um。
In some embodiments, the material of barrier layer 5 be selected from following one or more of them: aluminize, ethylene-vinyl alcohol it is total
Polymers (referred to as EVOH), polyvinyl alcohol (referred to as PVA), polyvinylidene chloride (referred to as PVDC), polyamide are (referred to as
PA), bidirectional stretching polypropylene film (referred to as BOPP)/aluminizing, BON biaxially oriented nylon film (referred to as BOPA)/aluminizes, is double
It/aluminizes, 45 degree of angle cutting stretched films of polyethylene/and aluminizes, 45 degree of angles of polypropylene point to stretching polyethylene film (referred to as BOPE)
Cut stretched film/aluminizing, biaxially oriented polyester film (referred to as BOPET)/aluminize, BOPP/ apply PVA, BOPE/ apply PVA, polyethylene
45 degree of 45 degree of angle cutting stretched film/painting PVA, polypropylene angle cutting stretched films/painting PVA, BOPET/ painting PVA, BOPA/ painting PVA,
BOPP/ applies Vingon (referred to as PVDC), BOPE/ applies PVDC, stretched film/painting PVDC, poly- third are cut in 45 degree of angles of polyethylene
45 degree of angle cutting stretched film/painting PVDC, BOPET/ of alkene apply PVDC.
In some embodiments, in the material of at least one of vinyl hot sealing layer 1, barrier layer 5 and auxiliary tearing layer 3
Physical mixed has following one or more of them light screening material: it aluminizes, white master material, and black master batch, stone paper masterbatch, nano oxygen
Change titanium, light stabilizer, light barrier, nano-metal-oxide.
In some embodiments, the weight of the light screening material of physical mixed is packaging bag in the material of vinyl hot sealing layer 1
The 0.001-50% of film total weight.
In some embodiments, packaging bag film includes individual light shield layer.Optionally, the material of light shield layer is selected from following
One or more of them: aluminizing, white master material, black master batch, stone paper masterbatch, nano-titanium oxide, light stabilizer, photoresist every
Agent, nano-metal-oxide.Or light shield layer in the surface printing ink of auxiliary tearing layer 3 by realizing.
Referring to Fig. 1, in some embodiments, the length of easy-torn line 4 is 2mm-30mm；And/or the notch of easy-torn line 4
Bore dia is 0.5mm-3mm.The easy-torn line 4 of above-mentioned length meets use demand.
Another embodiment of the utility model provides a kind of packaging bag, including bag body, and bag body uses any of the above-described technical solution
Provided packaging bag film is made.
Packaging bag film is used for automatic filling machine, bag making, fill operations can be realized simultaneously.Using different bag making sides
Method, filling obtained packed drink are such as self-standing bag, common soft bag etc..Self-standing bag refers to that bottom size is big, top dimension
Sack that is small, oneself can standing without external force.Common soft bag such as hundred Li Bao.
The easy-torn line of packaging bag is such as straight line, side of the straight line perpendicular to packaging bag, or the side with packaging bag
In 0 ° -90 ° of angle.
Common soft bag such as hundred Li Bao.Hundred Li Bao take full advantage of biaxially oriented film and vinyl seals layer film
The low feature of biaxially oriented film stretching molecule orientation, elongation percentage is sealed the good heat sealability of layer film with vinyl by characteristic
Sufficiently combine with flexibility, so that this liquid packing machine tearable mouth film had not only had good sealing-strength, but also
Has the function that finished product is easily torn.
For self-standing bag using biaxial stretching film in conjunction with polyethylene film, biaxial stretching film has good stiffness and heatproof
Property；After automatic filling machine cooperation, self-standing bag can be directly prepared on automatic filling machine, and combine filling be completed at the same time.
In some embodiments, the shape of easy-torn line 4 are as follows: straight line and/or curve.The easy-torn line 4 that hundred benefits are wrapped is set
For example be the straight line perpendicular to packaging bag short transverse, the structure is easy to use.Easy-torn line 4 on self-standing bag is such as and packaging
Bag short transverse is in the straight line of 90 ° of angles, which is more suitable for the structure of self-standing bag, and easy to use.
In some embodiments, the extension direction of easy-torn line 4 and the short transverse of bag body are at angle.For example, angle is greater than
0 ° and be less than or equal to 90 °, specifically such as be 0 °, 30 °, 45 °, 60 °, 90 °.
In some embodiments, the length of easy-torn line 4 is the 1/20-1/4 of packaging bag width direction.
Referring to Fig. 1 to Fig. 6, another embodiment of the utility model provides a kind of manufacturing method of packaging bag film, is used for
Manufacture packaging bag film provided by the above embodiment.The material of its each layer is selected from and sees above.Method includes the following steps:
Step S10, vinyl hot sealing layer 1 is manufactured.
Vinyl heat is such as specifically made using single-layer or multi-layer coextrusion film blowing machine or single-layer or multi-layer coextrusion casting machine
Sealing 1.
The material of vinyl hot sealing layer 1 is selected from following one of or several: polyethylene, low density polyethylene (LDPE), high density
Polyethylene, medium density polyethylene, metallocene PE, ethene-vinyl acetate copolymer, ethylene-methacrylic acid copolymer, second
Alkene-acrylate copolymer.Vinyl hot sealing layer 1 has been made using above-mentioned material.
In some embodiments, in order to improve the performances that is protected from light of packaging bag plastics, the material of vinyl hot sealing layer 1 further includes
Following one of or several light screening materials.Light screening material is such as are as follows: it aluminizes, white master material, and black master batch, stone paper masterbatch,
Or mixtures thereof nano-titanium oxide, light stabilizer, light barrier, nano-metal-oxide,.When manufacturing vinyl hot sealing layer 1,
Tool is made using coextrusion film blowing machine or coextrusion casting machine in light screening material physical mixed directly by above-mentioned vinyl material and herein
There is the vinyl hot sealing layer 1 of good shaded effect.
In some embodiments, the vinyl hot sealing layer 1 that step S10 is obtained is carried out the following processing: vinyl is sealed
The one or both sides surface of layer 1 carries out sided corona treatment, and dyne value on the treated surface of vinyl hot sealing layer 1 is greater than
Equal to 38.
In general, being to carry out sided corona treatment to the surface of vinyl hot sealing layer 1 towards auxiliary tearing layer 3.
Step S20, using biaxial tension casting machine or inflation film manufacturing machine manufacture auxiliary tearing layer 3.
In some embodiments, the auxiliary tearing layer 3 that step S20 is obtained is carried out the following processing: to auxiliary tearing layer 3
One or both sides surface carries out sided corona treatment, and dyne value for assisting the treated surface of tearing layer 3 is made to be more than or equal to 38.
Further, in some embodiments, the surface crossed to auxiliary 3 sided corona treatment of tearing layer carries out following processing: right
Assist the treated surface printing of tearing layer 3.
Step S30, vinyl hot sealing layer 1 and auxiliary 3 gluing of tearing layer are obtained into film layer component with gluing oxidant layer 2.
The sided corona treatment face of the printing surface of protective layer and vinyl hot sealing layer 1 is used into compounding machine, it is multiple with adhesive gluing
It closes.
Step S40, easy-torn line 4 is processed in the one or both sides of film layer component.
In some embodiments, using laser tearable mouth processor or molding pulley type tearable mouth processor, the two of film
It is 0.5mm-3mm that side processes diameter respectively, and length is the easy-torn line 4 of 2mm-30mm, finally cuts into finished product, or first by film layer
Tearable mouth is reprocessed after the cutting of component finished product.
In some embodiments, further comprising the steps of before above-mentioned step S40:
Step S50, film layer component is cured.
Optionally, the time of curing is 5-48 hours.
Optionally, the temperature of curing is 30 DEG C -80 DEG C.
Curing 5-48 hours in the curing chamber that temperature is 30-80 DEG C are then placed in, the film after curing is easily torn using laser
Mouth processor or molding pulley type tearable mouth processor, handling out diameter respectively on the both sides of film is 0.5mm-3mm, and length is
The easy-torn line 4 of 2mm-30mm, finally cuts into finished product.Or first tearable mouth will be reprocessed after the film progress finished product cutting after curing,
The tearable mouth that can satisfy liquid automatic-packing machine requirement can be produced.
After or before above-mentioned step S40 further include: cut the film layer component after curing, afterflow after being suitble to is made
The product of waterline size.
To produce the packaging bag film for having light-shading effect good, above-mentioned step S10 can also carry out operations described below: use
Single-layer or multi-layer coextrusion film blowing machine or single-layer or multi-layer coextrusion casting machine by 1 material of vinyl hot sealing layer and are protected from light material blending
Generation is protected from light vinyl hot sealing layer 1 (color such as are as follows: black/white, milky white, imitative paper color).Then obtained vinyl is sealed again
1 one side of layer carries out the subsequent processings such as corona.
To produce the packaging bag film for having barriering effect good, above-mentioned step S10 can also carry out operations described below:
It is directly total using co-extrusion film blowing machine or multi-layer co-extruded casting machine and vinyl hot sealing layer 1 referring to fig. 2 to Fig. 5
It squeezes, by the middle layer of the direct co-extrusion of barrier layer 5D to vinyl hot sealing layer 1A, forms A, D, A vinyl hot sealing layer 1.Or it uses
Barrier layer 5D is applied to the corona surface of vinyl hot sealing layer 1A by coating machine, becomes A, D vinyl hot sealing layer 1.Alternatively, using applying
Barrier layer 5D is applied on the corona surface of protective layer C by cloth machine, becomes C, D protective layer；Then in the one side of vinyl hot sealing layer 1
Sided corona treatment is carried out, 38 or more dyne value is met, and provides printing in the level, and use with the corona surface of protective layer C
Compounding machine is carried out compound with adhesive.It should be noted that letter A, B, C, D are intended merely to more clearly describe, and have to be into
The unnecessary restriction of row.
The above method is obtained into packaging bag film and is used for automatic filling machine, bag making, fill operations can be realized simultaneously, it is filling
Obtained packed drink is such as self-standing bag, common soft bag.Self-standing bag refers to that bottom size is big, and top dimension is small, without outer
The sack that power oneself can stand.
Several specific embodiments are described below.
Embodiment one:
Using single layer inflation film manufacturing machine, high density polyethylene (HDPE) is added in its feed opening, extruder temperature is 140 DEG C -- 225 DEG C, machine
Head temperature is 200 DEG C -- 215 DEG C；It squeezes out processing and manufacturing to obtain with a thickness of 60um, the polyethylene film of width 640mm is as ethylene
Base hot sealing layer 1.Sided corona treatment is carried out in the one side of the polyethylene film, corona value is 38 dynes.
It is produced using biaxial tension casting machine with a thickness of 18 microns, the BOPP film that width is 8m (is torn as auxiliary
3) layer, and carries out sided corona treatment in the one side of BOPP film, corona value is 38 dynes, and BOPP film is cut to width 640mm.
It is printed in the corona surface of BOPP film using intaglio press, and by the electricity of printing surface and vinyl hot sealing layer 1
Dizzy process face uses dry compound machine, carries out that dry type is compound to obtain film layer component with polyurethane adhesive, and Adhesive thickness is 1 μ.
It is then placed in the curing chamber that temperature is 30 DEG C and is cured, the curing time is 48 hours.
Film after curing is cut using cutting machine to width 320mm, using laser tearable mouth processor, in film layer group
The both sides of part handle out respectively diameter be 1mm, length be 10mm easy-torn line 4, easy-torn line 4 using discontinuous cut by the way of,
Incision length 1.5mm, spacing 0.5mm realize 5 notch, total length 10mm, notch depth 30um altogether.
Through the filling milk test of automatic liquid filling machine, heat sealability is good, and finished product easy-to-rupture is achieved.
Embodiment two:
Using 3 layers of coextrusion casting machine, wherein being added and being sealed as vinyl in the internal layer and middle layer feed inlet of casting machine
High density polyethylene (HDPE), the metallocene PE of layer material；In outer layer feed inlet, low density polyethylene (LDPE) and high-density polyethylene is added
The mixture of alkene.Processing obtains the film with a thickness of 80um as vinyl hot sealing layer 1.Casting machine processing temperature are as follows: extruder
Temperature be 190 DEG C 250 DEG C of -- 240 DEG C, the temperature of head is 210 DEG C --.It is carried out in the one side of 1 film of vinyl hot sealing layer
Sided corona treatment, corona value are 38 dynes.
It is produced using biaxial tension casting machine with a thickness of 12 microns, width is the BOPET film of 980mm, and in BOPET
The one side of film carries out sided corona treatment, and corona value is 52 dynes of
Using coating machine in BOPET film corona surface coated with high-separating layer 5PVA coating.
It is printed in the coat side that BOPET/ applies PVA film using intaglio press, and printing surface and vinyl is sealed
The sided corona treatment face of layer 1 uses dry compound machine, and it is compound to carry out dry type with acrylic resin adhesive, and Adhesive thickness is 5 μ.
It is then placed in the curing chamber that temperature is 50 DEG C and is cured, the curing time is 24 hours.
After using cutting machine to cut to width as the product of 320mm the film layer component after curing, using molding pulley type
Tearable mouth processor, handling out diameter respectively on the both sides of film is 0.5mm, and length is the easy-torn line 4 of 18mm, and easy-torn line 4 uses
The mode of point off formula cutting, incision length 0.5mm, spacing 0.5mm realize 18 notch altogether.The total length of easy-torn line 4 is
18mm, notch depth 80um.
Through the filling milk test of automatic liquid filling machine, heat sealability is good, and finished product easy-to-rupture is achieved.
Embodiment three:
Using 5 layers of coextrusion film blowing machine, wherein in inflation film manufacturing machine one layer with interior two layers of feed opening in, be added vinyl heat-sealing
1 material polyethylene of layer；In middle layer feed opening, barrier gas blanket raw material ethylene -- ethenol copolymer is added；Outside two
In layer feed opening, the mixture for being protected from light layer material nano-titanium oxide, light stabilizer and polyethylene is added；One layer of feed opening outside
In, protective layer material polyethylene is added.Inflation film manufacturing machine processing temperature is set separately are as follows: extruder temperature is 140 DEG C -- and 225 DEG C, machine
Head temperature is 200 DEG C -- 215 DEG C.Coextrusion fabricates the film with a thickness of 100um as vinyl hot sealing layer 1.In the second
The one side of alkenyl hot sealing layer 1 carries out sided corona treatment, and corona value is 38 dynes.
It is produced using biaxial tension casting machine with a thickness of 30 microns, width is that the BOPE film of 960mm (is torn as auxiliary
Parting 3), and sided corona treatment is carried out in the one side of BOPE film, corona value is 38 dynes of
It is printed in the corona surface of BOPE film using intaglio press, and by the electricity of printing surface and vinyl hot sealing layer 1
Dizzy process face uses dry compound machine, carries out that dry type is compound, and Adhesive thickness is 0.5 μ with polyester resin adhesive.It is then placed in
It is cured in the curing chamber that temperature is 45 DEG C, the curing time is 36 hours.
Film after curing is cut to width 310mm using cutting machine, using molding pulley type tearable mouth processor,
The both sides of film handle out respectively diameter be 2mm, length be 20mm easy-torn line 4, easy-torn line 4 using discontinuous cut by the way of,
Incision length 1.5mm, spacing 0.5mm realize 10 notch altogether.The total length 20mm of easy-torn line 4, notch depth 130um.
Through the filling milk test of automatic liquid filling machine, heat sealability is good, and finished product easy-to-rupture is achieved.
Example IV:
Using 3 layers of coextrusion film blowing machine, wherein polyethylene is added in the internal layer feed inlet of inflation film manufacturing machine and is protected from light material: white
The mixture of masterbatch and stone paper masterbatch；In middle level with the mixed of protective layer material polypropylene and polyethylene is added in outer layer feed inlet
Close object；There is provided 1 film of vinyl hot sealing layer with a thickness of 30um, inflation film manufacturing machine processing temperature are as follows: the temperature of extruder is 130 DEG C --
190 DEG C, the temperature of head is 170 DEG C -- 180 DEG C.Sided corona treatment, corona value are carried out in the one side of 1 film of vinyl hot sealing layer
It is 38 dynes.
Use 20 μ width of thickness for 1040mm BOPP/ aluminizer, aluminium coated corona value is 42 dynes, is aluminized the film is non-
Face is printed using flexible printing machine, then uses solvent-free composite machine, will with vinyl acetate resins adhesive
Aluminize face and 1 film of vinyl hot sealing layer corona surface carry out it is compound.Adhesive thickness is 2 μ.Being then placed in temperature is 60 DEG C
Curing chamber is cured, and the curing time is 8 hours.
Film after curing is cut using cutting machine to width 260mm, using laser tearable mouth processor, the two of film
It is 3mm that side handles out diameter respectively, and length is the easy-torn line 4 of 8mm.Easy-torn line 4 is by the way of the cutting of point off formula, incision length
1.5mm, spacing 1mm realize 4 notch altogether.The total length 8mm of easy-torn line 4, notch depth 20um.
Through the filling milk test of automatic liquid filling machine, heat sealability is good, and finished product easy-to-rupture is achieved.
Embodiment five:
Using single layer casting machine, the mixture of polyethylene and black master batch is added in feed inlet；It provides with a thickness of 45um
1 film of vinyl hot sealing layer, processing temperature are as follows: the temperature of extruder is 190 DEG C -- 240 DEG C, the temperature of head is 210 DEG C --
250℃.Sided corona treatment is carried out in the one side of 1 film of vinyl hot sealing layer, corona value is 38 dynes.
Use PVDC coating machine in 15 μ width of thickness for the PVDC coating of coating high obstructing performance on the BOPA film of 320mm,
As barrier layer 5.
It is printed in the coat side that BOPA/ applies PVDC film using intaglio press, and printing surface and vinyl is sealed
The sided corona treatment face of layer 1 uses dry compound machine, with the mixture of acrylic resin adhesive and polyester resin rouge adhesive into
Row dry type is compound, and Adhesive thickness is 4 μ.It is then placed in the curing chamber that temperature is 80 DEG C and is cured, the curing time is 5 small
When.
By the film after curing using molding pulley type tearable mouth processor, handling out diameter respectively on the both sides of film is
0.5mm, length are the easy-torn line 4 of 30mm, and easy-torn line 4 is by the way of the cutting of point off formula, incision length 1mm, spacing 2mm, altogether
Realize the total length 30mm of 11 notch easy-torn lines 4, notch depth 64um.
Through the filling milk test of automatic liquid filling machine, heat sealability is good, and finished product easy-to-rupture is achieved.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown is only the utility model and simplified description for ease of description, rather than indicates or imply meaning
Device or element must have a particular orientation, construct and operate for specific orientation, thus should not be understood as practical new to this
The limitation of type protection content.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement, but these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (27)
1. a kind of packaging bag film characterized by comprising
Vinyl hot sealing layer (1)；
Gluing oxidant layer (2), a side surface are connected with the vinyl hot sealing layer (1)；And
It assists tearing layer (3), is connected with another side surface of the gluing oxidant layer (2)；
Wherein, the corresponding position of the vinyl hot sealing layer (1), the gluing oxidant layer (2) and auxiliary tearing layer (3) is equipped with
Easy-torn line (4).
2. packaging bag film according to claim 1, which is characterized in that the vinyl hot sealing layer (1) is one layer or one
Layer or more.
3. packaging bag film according to claim 1, which is characterized in that the material of the vinyl hot sealing layer (1) is selected from
Following one of which: polyethylene, low density polyethylene (LDPE), high density polyethylene (HDPE), medium density polyethylene, metallocene PE, ethylene-
Vinyl acetate copolymer, ethylene-methacrylic acid copolymer, vinyl-acrylate copolymer.
4. packaging bag film according to claim 1, which is characterized in that the vinyl hot sealing layer (1) with a thickness of
10um-154um。
5. packaging bag film according to claim 1, which is characterized in that the material of the gluing oxidant layer (2) is selected from following
It is one of: polyurethane adhesive, acrylic resin adhesive, polyester resin adhesive, vinyl acetate resins gluing
Agent.
6. packaging bag film according to claim 1, which is characterized in that the gluing oxidant layer (2) with a thickness of 0.5um-
5um。
7. packaging bag film according to claim 1, which is characterized in that the auxiliary tearing layer (3) be selected from it is following wherein
It is one or more of: biaxial tension material layer, synthetic paper, stone paper, paper.
8. packaging bag film according to claim 1, which is characterized in that the auxiliary tearing layer (3) includes biaxial tension
The material of material layer, the biaxial tension material layer is selected from following one of which: the two-way drawing of polypropylene bidirection drawing film, polyethylene
Stretch film, 45 degree of angle cutting stretched films of polyethylene, polypropylene 45 degree of angle cuttings stretched films, the two-way drawing of polyethylene terephthalate
Stretch film, polyamide biaxial stretching film.
9. packaging bag film according to claim 1, which is characterized in that it is described auxiliary tearing layer (3) with a thickness of
5.5um-45um。
10. packaging bag film according to claim 1, which is characterized in that further include:
Barrier layer (5) is set between the vinyl hot sealing layer (1) and the gluing oxidant layer (2)；Alternatively, the barrier layer (5)
Between the gluing oxidant layer (2) and protective layer；
Wherein, the vinyl hot sealing layer (1) is one or more layers.
11. packaging bag film according to claim 1, which is characterized in that further include:
Barrier layer (5) is set between two layers of vinyl hot sealing layer (1).
12. packaging bag film described in 0 or 11 according to claim 1, which is characterized in that the barrier layer (5) with a thickness of
0.05um-30um。
13. packaging bag film described in 0 or 11 according to claim 1, which is characterized in that the material of the barrier layer (5) is selected from
Following one of which: aluminize, ethylene-vinyl alcohol copolymer, polyvinyl alcohol, polyvinylidene chloride, polyamide, BOPP/ aluminize,
BOPA/, which aluminizes, BOPE/ aluminizes, stretched film is cut at 45 degree of angles of polyethylene/aluminizing, 45 degree of angle cutting stretched films of polypropylene/aluminizes,
BOPET/ aluminizes, BOPP/ applies PVA, BOPE/ and applies PVA, polyethylene 45 degree of angle cutting stretched film/painting PVA, 45 degree of angles of polypropylene point
It cuts stretched film/painting PVA, BOPET/ and applies PVA, BOPA/ painting PVA, BOPP/ painting PVDC, BOPE/ painting PVDC, 45 degree of angles of polyethylene point
Cut stretched film/painting PVDC, 45 degree of angle cutting stretched film/painting PVDC, BOPET/ of polypropylene apply PVDC.
14. packaging bag film according to claim 1, which is characterized in that the vinyl hot sealing layer (1) and/or described
Physical mixed in the material of tearing layer (3) is assisted to have the light screening material for shading.
15. packaging bag film according to claim 14, which is characterized in that the light screening material is selected from following wherein one
Kind: it aluminizes, white master material, black master batch, stone paper masterbatch, nano-titanium oxide, light stabilizer, light barrier, nano metal oxygen
Compound.
16. packaging bag film according to claim 14, which is characterized in that the weight of the light screening material is the packaging
The 0.001-50% of bag film total weight.
17. packaging bag film according to claim 1, which is characterized in that the vinyl hot sealing layer (1) and the auxiliary
Light shield layer is equipped between tearing layer (3).
18. packaging bag film according to claim 17, which is characterized in that the material of the light shield layer be selected from it is following wherein
It is a kind of: it aluminizes, white master material, black master batch, stone paper masterbatch, nano-titanium oxide, light stabilizer, light barrier, nano metal
Oxide.
19. packaging bag film according to claim 1, which is characterized in that the length of the easy-torn line (4) is 2mm-
30mm；And/or the bore dia of the notch of the easy-torn line (4) is 0.5mm-3mm.
20. packaging bag film according to claim 1, which is characterized in that the overall thickness of the packaging bag film is 60um-
160um。
21. packaging bag film according to claim 1, which is characterized in that the notch depth of the easy-torn line (4) is described
The 1/3-1/5 of the thickness of packaging bag film.
22. a kind of packaging bag, which is characterized in that including bag body, the bag body includes any packaging of claim 1-21
Bag film.
23. packaging bag according to claim 22, which is characterized in that the bag body is hundred Li Bao or self-standing bag.
24. packaging bag according to claim 22, which is characterized in that the shape of the easy-torn line (4) are as follows: straight line and/or
Curve.
25. packaging bag according to claim 22, which is characterized in that the extension direction of the easy-torn line (4) and the bag
The short transverse of body is at angle.
26. packaging bag according to claim 25, which is characterized in that the angle is greater than 0 ° and is less than or equal to 90 °.
27. packaging bag according to claim 22, which is characterized in that the length of the easy-torn line (4) is the packaging bag
The 1/20-1/4 of width direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821194160.4U CN209141609U (en) | 2018-07-26 | 2018-07-26 | Packaging bag film and packaging bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821194160.4U CN209141609U (en) | 2018-07-26 | 2018-07-26 | Packaging bag film and packaging bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209141609U true CN209141609U (en) | 2019-07-23 |
Family
ID=67265074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821194160.4U Active CN209141609U (en) | 2018-07-26 | 2018-07-26 | Packaging bag film and packaging bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209141609U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108688272A (en) * | 2018-07-26 | 2018-10-23 | 刘建林 | Packaging bag film and its manufacturing method and packaging bag |
-
2018
- 2018-07-26 CN CN201821194160.4U patent/CN209141609U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108688272A (en) * | 2018-07-26 | 2018-10-23 | 刘建林 | Packaging bag film and its manufacturing method and packaging bag |
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