CN206436597U - Superhigh temperature sterilized milk aluminum foil sack - Google Patents
Superhigh temperature sterilized milk aluminum foil sack Download PDFInfo
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- CN206436597U CN206436597U CN201720072286.3U CN201720072286U CN206436597U CN 206436597 U CN206436597 U CN 206436597U CN 201720072286 U CN201720072286 U CN 201720072286U CN 206436597 U CN206436597 U CN 206436597U
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Abstract
The utility model is related to a kind of superhigh temperature sterilized milk aluminum foil sack, including 8011 Al foil substrates layer, the upper surface of the 8011 Al foil substrate layer is provided with EVOH five-layer co-squeezing composite films, the lower surface of the 8011 Al foil substrate layer is provided with PE film layers, adhesive phase is equipped between the EVOH five-layer co-squeezings composite film and PE film layers and 8011 Al foil substrates layer, the upper surface of the EVOH five-layer co-squeezings composite film is bonded with printed paperboard by adhesive glue, the upper surface of the printed paperboard is provided with ink printed layer, the top of the ink printed layer is provided with PET protection film layer.This aluminum foil sack uses paper plastic-aluminum multi-layer compound structure, possesses excellent resistance oxygen, hinders wet, tensile strength and heat sealability, using the long shelf-life of the high-temperature sterilization milk of the packaging bag, is adapted to long distance transportation, is conducive to expanding the sales range of product.
Description
Technical field
The utility model is related to packaging field, concretely relates to a kind of Aluminium Foil Package packed for superhigh temperature sterilized milk
Pack.
Background technology
With the raising of living standard, the quickening of rhythm of life, people are increasing to the demand of milk, to milk
Quality, nutrition, the mouthfeel of product require more and more higher, meanwhile, traditional milk selling market is also changing, at present, domestic
Advanced ultrahigh-temperature instant sterilizing and sterile filling technique processed milk are just being risen in market, and the fresh-keeping, shelf-life is the several months, just
In long-distance transport and storage, to meet the demand in market.
At present, in China's liquid milk products, Pasteur's processing milk accounts for 60%, and superhigh temperature sterilized milk accounts for 21%, and cheese accounts for 19%, wherein
Superhigh temperature sterilized milk is substantially in rising trend, long mainly due to superhigh temperature sterilized milk shelf life, and diversified in packagingization is preserved and taken
Band is convenient.Superhigh temperature sterilized milk is that fresh milk is heated into 135-150 DEG C using moment ultra-high temperature sterilization technology, only keeps several seconds just
Normal temperature is rapidly decreased to, it is filling and envelope is formed with the plastic-aluminum combined sterilizable material of paper then under the conditions of sealed, sterile.Aseptic packaging
Major advantage be ensure it is sterile under conditions of can original nutritional ingredient and local flavor in retaining food product to greatest extent, reduce
Loss.The aluminum-plastic packaged and sterile cup type plastic bottle packing development of aseptic paper in recent years is very rapid, and aseptic paper is aluminum-plastic packaged main
To be combined using PET aluminizers and PE, and sterile cup type packaging then using Multi-layer coextrusion sheet PP/PE/EVA/PVDC/PS or its
Its similar material structure.But current, because the material and facility of aseptic packaging relies primarily on import, cost is too high, sterile
It is packaged in China's dairy products and only accounts for 10%, and developed country accounts for 65%, this is in the urgent need to improving and solving in liquid milk-packing
Place；In addition, this also causes liquid milk to hold at high price, the sound development of production and consumption is constrained.
Utility model content
The purpose of this utility model be to provide a kind of low simple in construction, manufacturing cost, high obstructing performance, safety and sanitation and
The superhigh temperature sterilized milk aluminum foil sack of environmental protection.Paper plastic-aluminum multi-layer compound structure, shelf life of products is long, safety and sanitation, cost
Relatively low, without refrigeration, distribution process saves cost of transportation.
To achieve these goals, the technical solution adopted in the utility model is, a kind of superhigh temperature sterilized milk Aluminium Foil Package
Pack, including 8011 Al foil substrates layer, the upper surface of the 8011 Al foil substrate layer are provided with EVOH（Ethylene-vinyl alcohol copolymer）
Five-layer co-squeezing composite film, the lower surface of the 8011 Al foil substrate layer is provided with PE（Polyethylene）Film layer, five layers of the EVOH
Adhesive phase is equipped between coextru-lamination film layer and PE film layers and 8011 Al foil substrates layer, the EVOH five-layer co-squeezings are combined
The upper surface of film layer is bonded with printed paperboard by adhesive glue, and the upper surface of the printed paperboard is provided with ink printed layer, described
The top of ink printed layer is provided with PET（Polyethylene terephthalate）Protection film layer.
As a kind of improvement of the present utility model, the EVOH five-layer co-squeezings composite film is the EVOH using high resistant oxygen
Resin, EVA（Ethylene-vinyl acetate copolymer）Resin, LDPE（Low density polyethylene (LDPE)）Resin and M-LLDPE（The poly- second of metallocene
Alkene）The EVOH five-layer co-squeezing composite membranes that resin combines blowing on five-layer co-squeezing membrane blowing production line are made, described
EVOH five-layer co-squeezings composite membrane includes LDPE films, EVA film, EVOH films, EVA film and M-LLDPE films successively from top to bottom.
As a kind of improvement of the present utility model, the PE film layers are specifically to use LLDPE（Linear low density polyethylene
Alkene）Film is made.
As a kind of improvement of the present utility model, it is arranged between EVOH five-layer co-squeezings composite film and Al foil substrate layer
Adhesive phase is polyurethane adhesive layer, and the coating weight of the polyurethane adhesive of the polyurethane adhesive layer is 2-4g/m2。
As a kind of improvement of the present utility model, the adhesive phase being arranged between Al foil substrate layer and PE film layers is water
Property VC bonding glue-lines, the coating weight of the aqueous VC adhesive glues of the aqueous VC bonding glue-line is 1.5-3g/m2。
It is used as a kind of improvement of the present utility model, the adhesive glue of the EVOH five-layer co-squeezings composite film and printed paperboard
Using polyurethane adhesive.
Relative to prior art, the superhigh temperature sterilized milk that the utility model is proposed is set with the overall structure of aluminum foil sack
Meter is ingenious, using PET- paper-EVOH coextrusion-lamination films-five layers of aluminium-PE composite constructions, and gross thickness is no more than 0.5mm, thickness of thin,
Possess excellent resistance oxygen, hinder wet, tensile strength and heat sealability, high-temperature sterilization milk is packed using the packaging bag can be to greatest extent
Ground retains nutrition and the local flavor of milk, and security is good, long shelf-life, normal temperature storage, and is easy to long distance transportation, is conducive to expanding
The sales range of product.
Brief description of the drawings
Fig. 1 is the layer structure schematic diagram in the utility model section.
In figure：1-8011 Al foil substrates layer, 2-EVOH five-layer co-squeezing composite films, 3-PE film layers, 4- printed paperboards, 5-
Ink printed layer, 6-PET protection film layers, 7- adhesive phases, 8- adhesive phases, 9- adhesive glues, 10-LDPE films, 11- EVA films,
12- EVOH films, 13-M-LLDPE films.
Embodiment
In order to deepen, to understanding and cognition of the present utility model, the utility model to be further described below in conjunction with the accompanying drawings
And introduction.
Because ultra-high temperature sterilization is to carry out instantaneously sterilising to milk under 135-150 DEG C of high temperature, and it is generally continuous production, surpasses
The automatic filling line of high-temperature sterilization milk has very high requirement to the flatness and heat sealability of packaging bag, if packaging bag is broken
The problems such as bag, bad heat-sealing, very big loss can be caused.Further, since packaging bag will use hydrogen peroxide（35% concentration）Disappeared
Poison, therefore have higher requirement to the equipment and technique for producing packaging bag, ultra-high temperature sterilization is packed for the film layer in packaging bag
It is main to be produced using coextrusion.
As shown in figure 1, the superhigh temperature sterilized milk aluminum foil sack of an embodiment, including 8011 Al foil substrates are listed in this case
Layer 1, specifically can be using 8011-H18 made with aluminum foil for substrate layer, and the upper surface of the 8011 Al foil substrate layer 1 is provided with EVOH five
Layer coextru-lamination film layer 2, because the EVOH films 12 in EVOH five-layer co-squeezings composite film 2 have good oxygen resistance, with reference to
8011 aluminium foils are used, and the optimal resistance oxygen effect of guaranteeing the quality can be effectively played to superhigh temperature sterilized milk.The 8011 Al foil substrate layer 1
Lower surface is provided with PE film layers 3, and on the one hand PE film layers 3 are directly in contact with superhigh temperature sterilized milk, liquid barrier milk seepage and
By microbiological attack, on the other hand as the heat-sealing encapsulated layer of whole packaging bag, acted on good heat-sealing.The EVOH
Adhesive phase, five layers of the EVOH are equipped between five-layer co-squeezing composite film 2 and the Al foil substrate of PE film layers 3 and 8011 layer 1
The upper surface of coextru-lamination film layer 2 is bonded with printed paperboard 4 by adhesive glue 9, and the upper surface of the printed paperboard 4 is provided with ink
Printing layer 5, the top of the ink printed layer 5 is provided with PET protection film layer 6.PET protection film layer 6 is using PET film making
Into with good mechanical property, impact strength is 3-5 times of other films, and folding resistance is good；And it is its oil resistant, resistance to fatty, resistance to
Diluted acid diluted alkaline and most of solvents, transparency are high, can stop ultraviolet, glossiness is good, to the printing text on ink printed layer 5
Word and pattern-information play good guarantor's color effect；In addition, its permeability to gas and vapor is low, existing excellent resistance
Gas and water, oil and peculiar smell performance.
Superhigh temperature sterilized milk aluminum foil sack is on the premise of its mechanical performance is met, mainly to oxygen transit dose
It is required that.Generally, milk by ultra-high temperature sterilization it is filling after, bacterial content all controls the state in denier, if packaging
Film oxygen transit dose is big, and trace of bacteria is easily bred, and speed is quickly, therefore oxygen resistance difference is packed for Obstruct membrane and can made
Substantial amounts of oxygen enters in packaging bag, this just provides convenience condition for the breeding of bacterium.Meanwhile, in extraneous peculiar smell and bag
Fresh milk taste also easily exchange, make fresh-keeping, the shortened shelf life of milk.
In the above-described embodiments, thus the EVOH five-layer co-squeezings composite film 2 be using high resistant oxygen EVOH resins,
EVA resin, LDPE resin and M-LLDPE resins combine the EVOH five-layer co-squeezings of blowing on five-layer co-squeezing membrane blowing production line
Composite membrane is made, and the EVOH five-layer co-squeezings composite membrane includes LDPE films 10, EVA film 11, EVOH films successively from top to bottom
12nd, EVA film 11 and M-LLDPE films 1310.Resistance oxygen of the EVOH five-layer co-squeezings composite film 2 to the superhigh temperature sterilized milk in packaging bag
Protect perfume (or spice) and play key effect, can be different to reach by the type selecting to the regulation of the thickness degree of EVOH films 12 and EVOH resin brands
Oxygen passes through figureofmerit.The thickness of EVOH five-layer co-squeezings composite film 2 is not more than 38% in 0.02-0.06mm from ethylene contents
EVOH resins, from MI（Melt index）In 2 or so LDPE resin, and the M-LLDPE resins from MI 1 or so, its
Oxygen value is hindered up to 0.23ml20um/m2d.atm。
In the above-described embodiments, the PE film layers 3 are specifically to be made using LLDPE films, preferential to be existed from MI
1-2 LLDPE resins are as the raw materials for production of LLDPE films, and the heat sealability of such LLDPE films is good, as long as reaching minimum
Playing envelope temperature just has good heat seal strength, and sealing contamination resistance is strong, and can improve the production efficiency of milk pack.
In the above-described embodiments, it is arranged on the adhesive phase 7 between EVOH five-layer co-squeezings composite film 2 and Al foil substrate layer
For polyurethane adhesive layer, the coating weight of the polyurethane adhesive of the polyurethane adhesive layer is 2-4g/m2.Polyurethane adhesive
Stick has the activity and polarity of height, can be with the base material containing active hydrogen, such as foam, plastics, timber, leather, fabric, paper
, the porous material such as ceramics, and the material of any surface finish such as metal, glass, rubber, plastics has excellent chemical adhesive
Power.Further, since water-based polyurethane adhesive has low VOC content, low or non-environmental-pollution, it is non-ignitable the features such as, therefore, often
It is used as food packaging adhesive.
In the above-described embodiments, the adhesive phase 8 being arranged between Al foil substrate layer and PE film layers 3 bonds for aqueous VC
Glue-line, the coating weight of the aqueous VC adhesive glues of the aqueous VC bondings glue-line is 1.5-3g/m2.The aqueous VC adhesive glues are
By 69~74% aqueous polyurethane emulsion, 10~12% water-base resin, 0.3~0.5% aqueous levelling wetting agent, 0.2
~0.4% defoamer and 15~20% water composition.Therefore, aqueous VC adhesive glues and aqueous VC adhesive glues 98 are prepared
Solvent and diluent are water, without using organic diluent, it is to avoid harm to environment and human body, and do not need high baking
Channel temp, saves the energy, reduces production cost.
In the above-described embodiments, the adhesive glue 9 of the EVOH five-layer co-squeezings composite film 2 and printed paperboard 4 uses poly- ammonia
Ester gum stick.
Technological means disclosed in the utility model scheme is not limited only to the technological means disclosed in above-mentioned embodiment, also
Including being combined constituted technical scheme by above technical characteristic.It should be pointed out that for the ordinary skill of the art
For personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and moistened
Decorations are also considered as protection domain of the present utility model.
Claims (6)
1. a kind of superhigh temperature sterilized milk aluminum foil sack, it is characterised in that：Including 8011 Al foil substrates layer, 8011 aluminium foil
The upper surface of substrate layer is provided with EVOH five-layer co-squeezing composite films, and the lower surface of the 8011 Al foil substrate layer is provided with PE films
Adhesive phase is equipped between layer, the EVOH five-layer co-squeezings composite film and PE film layers and 8011 Al foil substrates layer, it is described
The upper surface of EVOH five-layer co-squeezing composite films is bonded with printed paperboard by adhesive glue, and the upper surface of the printed paperboard is provided with
Ink printed layer, the top of the ink printed layer is provided with PET protection film layer.
2. superhigh temperature sterilized milk aluminum foil sack as claimed in claim 1, it is characterised in that the EVOH five-layer co-squeezings are answered
It is to be produced using EVOH resins, EVA resin, LDPE resin and the M-LLDPE resins of high resistant oxygen in five-layer co-squeezing blown film to close film layer
On line combination blowing EVOH five-layer co-squeezing composite membranes be made, the EVOH five-layer co-squeezings composite membrane from top to bottom according to
It is secondary including LDPE films, EVA film, EVOH films, EVA film and M-LLDPE films.
3. superhigh temperature sterilized milk aluminum foil sack as claimed in claim 1, it is characterised in that the PE film layers are specifically
It is made using LLDPE films.
4. superhigh temperature sterilized milk aluminum foil sack as claimed in claim 2 or claim 3, it is characterised in that be arranged on five layers of EVOH
Adhesive phase between coextru-lamination film layer and Al foil substrate layer is polyurethane adhesive layer, the polyurethane adhesive layer it is poly-
The coating weight of urethane adhesive is 2-4g/m2。
5. superhigh temperature sterilized milk aluminum foil sack as claimed in claim 4, it is characterised in that be arranged on Al foil substrate layer with
Adhesive phase between PE film layers bonds glue-line, the coating of the aqueous VC adhesive glues of the aqueous VC bondings glue-line for aqueous VC
Measure as 1.5-3g/m2。
6. superhigh temperature sterilized milk aluminum foil sack as claimed in claim 5, it is characterised in that the EVOH five-layer co-squeezings are answered
The adhesive glue for closing film layer and printed paperboard uses polyurethane adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720072286.3U CN206436597U (en) | 2017-01-20 | 2017-01-20 | Superhigh temperature sterilized milk aluminum foil sack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720072286.3U CN206436597U (en) | 2017-01-20 | 2017-01-20 | Superhigh temperature sterilized milk aluminum foil sack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206436597U true CN206436597U (en) | 2017-08-25 |
Family
ID=59634928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720072286.3U Expired - Fee Related CN206436597U (en) | 2017-01-20 | 2017-01-20 | Superhigh temperature sterilized milk aluminum foil sack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206436597U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108750370A (en) * | 2018-06-19 | 2018-11-06 | 东莞奇妙包装有限公司 | A kind of flexible packaging film, a kind of soft packaging bag and preparation method thereof |
| CN109398910A (en) * | 2018-09-27 | 2019-03-01 | 广州品赫生物科技有限公司 | Facial mask bag material, production technology and mask packaging bag |
| CN110091558A (en) * | 2018-01-30 | 2019-08-06 | 上海久诚包装有限公司 | A kind of paper plastic-aluminum composite packing film and its production technology |
| CN110979989A (en) * | 2019-12-05 | 2020-04-10 | 威海恒瑞新型包装材料有限公司 | Easy-to-peel high-temperature sterilization indicating band |
-
2017
- 2017-01-20 CN CN201720072286.3U patent/CN206436597U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110091558A (en) * | 2018-01-30 | 2019-08-06 | 上海久诚包装有限公司 | A kind of paper plastic-aluminum composite packing film and its production technology |
| CN108750370A (en) * | 2018-06-19 | 2018-11-06 | 东莞奇妙包装有限公司 | A kind of flexible packaging film, a kind of soft packaging bag and preparation method thereof |
| CN109398910A (en) * | 2018-09-27 | 2019-03-01 | 广州品赫生物科技有限公司 | Facial mask bag material, production technology and mask packaging bag |
| CN110979989A (en) * | 2019-12-05 | 2020-04-10 | 威海恒瑞新型包装材料有限公司 | Easy-to-peel high-temperature sterilization indicating band |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170825 Termination date: 20210120 |