CN102717571B - Microwave heating composite packaging film and preparation method thereof - Google Patents
Microwave heating composite packaging film and preparation method thereof Download PDFInfo
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- CN102717571B CN102717571B CN201210224109.4A CN201210224109A CN102717571B CN 102717571 B CN102717571 B CN 102717571B CN 201210224109 A CN201210224109 A CN 201210224109A CN 102717571 B CN102717571 B CN 102717571B
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- 239000002131 composite material Substances 0.000 title claims abstract description 81
- 238000010438 heat treatment Methods 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title claims description 39
- 229920006280 packaging film Polymers 0.000 title abstract 6
- 239000012785 packaging film Substances 0.000 title abstract 6
- 238000007789 sealing Methods 0.000 claims abstract description 44
- 239000004698 Polyethylene Substances 0.000 claims abstract description 28
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 25
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 25
- -1 polyethylene Polymers 0.000 claims abstract description 22
- 229920000573 polyethylene Polymers 0.000 claims abstract description 22
- 239000012528 membrane Substances 0.000 claims abstract description 15
- 239000004677 Nylon Substances 0.000 claims abstract description 13
- 229920001778 nylon Polymers 0.000 claims abstract description 13
- 229920006284 nylon film Polymers 0.000 claims abstract description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 20
- 230000005540 biological transmission Effects 0.000 claims description 20
- 229910052760 oxygen Inorganic materials 0.000 claims description 20
- 239000001301 oxygen Substances 0.000 claims description 20
- 230000000149 penetrating effect Effects 0.000 claims description 20
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 12
- 229920001526 metallocene linear low density polyethylene Polymers 0.000 claims description 12
- 229910052710 silicon Inorganic materials 0.000 claims description 12
- 239000010703 silicon Substances 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 8
- 239000003595 mist Substances 0.000 claims description 8
- 238000007493 shaping process Methods 0.000 claims description 8
- 238000009736 wetting Methods 0.000 claims description 8
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 6
- 239000005977 Ethylene Substances 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 6
- 239000000806 elastomer Substances 0.000 claims description 6
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 6
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 6
- 238000007747 plating Methods 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 230000004888 barrier function Effects 0.000 abstract description 3
- 238000012856 packing Methods 0.000 abstract description 2
- 230000035939 shock Effects 0.000 abstract description 2
- 239000004712 Metallocene polyethylene (PE-MC) Substances 0.000 abstract 2
- 239000012793 heat-sealing layer Substances 0.000 abstract 2
- 239000012748 slip agent Substances 0.000 abstract 2
- 244000002639 Delonix regia Species 0.000 abstract 1
- 230000003044 adaptive effect Effects 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 239000011888 foil Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 abstract 1
- 239000011347 resin Substances 0.000 description 27
- 229920005989 resin Polymers 0.000 description 27
- 238000004806 packaging method and process Methods 0.000 description 9
- 239000005030 aluminium foil Substances 0.000 description 4
- 238000009835 boiling Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 229920006233 biaxially oriented polyamide Polymers 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000013622 meat product Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 210000004276 hyalin Anatomy 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 235000021067 refined food Nutrition 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wrappers (AREA)
Abstract
The invention discloses a microwave heating composite packaging film which is formed by compositing a polyethylene film, a two-way tensile silicon-plated nylon membrane and a two-way tensile nylon film. The polyethylene film is composed of a corona layer and a heat sealing layer, the heat sealing layer is composed of metallocene polyethylene, low-density polyethylene and slip agent, and weight ratio among the metallocene polyethylene, the low-density polyethylene and the slip agent is 50-85:15-50:1-2. Barrier properties of the microwave heating composite packaging film exceed requirements of existing products containing aluminum foil. The microwave heating composite packaging film has good temperature adaptive performance, can be processed, transported and stored at the temperature ranging from -40 DEG C to 121 DEG C, has excellent mechanical performance, is remarkable in shock-resistant effect and punctuation-resistant effect, has the advantages of being low in sealing temperature, short in heat sealing temperature and high in sealing strength, and prevents packing contents from being influenced due to the fact that bags are damaged because of too high heat sealing temperature. Clear and flamboyant patterns can be printed on the microwave heating composite packaging film, and the microwave heating composite packaging film has good practicability.
Description
Technical field
The present invention relates to a kind of packaging material, especially one can heating using microwave composite package film and preparation method thereof.
Background technology
Along with the raising of people's living standard, rhythm of life is accelerated, and the demand of the easy processed food of the other side constantly increases.Consumption figure for quick cooked meat product increases with the speed of more than 10% every year.Quick cooked meat product packaging is main at present adopts aluminum-plastic composite membrane packaging, typical case's packaging structure has the structures such as PET/AL/PA/CPP, PA/AL/CPP, PA/AL/PA/LLDPE, and above material structure all have selected aluminium foil as barrier layer in order to the requirement reaching the shelf-life.There is following problem in this type of packaging: (1) causes this kind of packaging opaque due to the use of aluminium foil, can not see content.(2) because this packaging of use of aluminium foil can not be directly used in heating using microwave, need during heating, to take packaging apart and content is put into microwave Special disc inherence carries out heating using microwave.(3) effect of quick packaging can not be given full play to.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of high transparency, high-barrier can heating using microwave composite package film; Present invention also offers this can the preparation method of heating using microwave composite package film.
For solving the problems of the technologies described above, the technical solution used in the present invention is: it is from inside to outside followed successively by and is composited by polyethylene film (PE), biaxial tension plating silicon nylon membrane (GL-PA) and biaxial tension nylon film (BOPA); Described polyethylene film is made up of corona layer and hot sealing layer; Described hot sealing layer is made up of metallocene PE (mPE), low density polyethylene (LDPE) (LDPE) and slipping agent, and the weight ratio of described metallocene PE, low density polyethylene (LDPE) and slipping agent is 50 ~ 85:15 ~ 50:1 ~ 2.
The present invention adopts the metallocene PE of following performance indications: fusing point is 82 ~ 84 DEG C, and elongation at break is greater than 500%, and yield tensile strength is greater than 8Mpa, and fracture tensile strength is greater than 50Mpa, and dart impact strength is greater than 140g; Adopt the low density polyethylene (LDPE) of following performance indications: fusing point is 100 ~ 105 DEG C, and elongation at break is greater than 350%, and dart impact strength is greater than 75g.
The thickness of polyethylene film of the present invention is 80 ~ 90 microns.
Corona layer of the present invention is made up of the ethylene elastomer of 40 ~ 80% weight and the LLDPE of 20 ~ 60% weight.
The present invention adopts the ethylene elastomer of following performance indications: fusing point is 65 ~ 66 DEG C, and brittle temperature is less than-70 DEG C; Adopt the LLDPE of following performance indications: fusing point is 120 ~ 125 DEG C, and elongation at break is greater than 420%, and fracture tensile strength is greater than 45Mpa.
The present invention adopts the biaxial tension plating silicon nylon membrane of following performance indications: hot strength: transverse direction>=200Mpa, longitudinal direction>=180Mpa; Elongation at break: laterally>=180%, longitudinally>=80%; Percent thermal shrinkage≤3%; Coefficient of friction≤0.80; Mist degree≤1.5%; Glossiness>=85%; Inner face wetting tension>=52mN/m; Steam penetrating capacity is lower than 0.4g/ (m
224h), OTR oxygen transmission rate is lower than 0.4cc/ (m
224h).
The present invention adopts the biaxial tension nylon film of following performance indications: hot strength: transverse direction >=200Mpa, longitudinal direction >=180Mpa; Elongation at break: laterally >=180%, longitudinally >=80%; Percent thermal shrinkage≤3%; Coefficient of friction≤0.80; Mist degree≤1.5%; Glossiness >=85%; Inner face wetting tension >=52mN/m.
The step of preparation method of the present invention is: raw material co-extrusion modling in double-deck extruder of (1) described corona layer and hot sealing layer, makes polyethylene film;
(2) the polyethylene film cooling and shaping of extrusion molding;
(3) polyethylene film after cooling and shaping and biaxial tension are plated silicon nylon membrane and biaxial tension nylon film and are sticked with glue agent and carry out compound and can obtain described composite package film.
Extrusion temperature in step (1) described in preparation method of the present invention is 210 ~ 260 DEG C.
Hauling speed 20 ~ 40m/min in step (2) described in preparation method of the present invention during cooling and shaping.
The beneficial effect adopting technique scheme to produce is: present invention employs biaxial tension plating silicon nylon membrane (GL-PA) with high obstructing performance, and its barrier property has exceeded the existing requirement containing aluminium foil products; Have excellent weather resistance ethylene elastomer and the metallocene resin with good mechanical properties is employed in inner layer polyethylene film, make it have excellent Acclimation temperature performance, the temperature range processing of-40 DEG C to 121 DEG C, transport can be adapted to, store, there is excellent mechanical performance simultaneously, shock resistance effect and puncture-resistant Be very effective, play envelope temperature low, the heat-sealing time is short, the feature that sealing-strength is high, more adapt to modernization automated packaging equipment fast, avoid because heat-sealing temperature is too high, damage is caused to sack, pack content is had an impact; In the present invention, three kinds of materials are nonmetal hyaline membrane, so excellent and can be directly used in heating using microwave to pack content visual effect; The pattern that printable surface of the present invention is clear, beautiful, has better practicality.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further detailed explanation.
Originally can heating using microwave composite package film raw material used as follows:
Metallocene PE: model is Exceed 1018CA, its performance indications are as follows: fusing point is 82 ~ 84 DEG C, elongation at break is greater than 500%, yield tensile strength is greater than 8Mpa, fracture tensile strength is greater than 50Mpa, dart impact strength is greater than 140g, has excellent low-temperature heat-sealing effect, can improve low-temperature heat-sealing performance and the sealing-strength of film after interpolation.Produced by Exxon Mobil Corporation.
Low density polyethylene (LDPE): model is that its performance of LD100AC is as follows: fusing point is 100-105 DEG C, and elongation at break is greater than 350%, and dart impact strength is greater than 75g; Produced by Exxon Mobil Corporation.
Ethylene elastomer: model is A-4085S, and its performance indications are as follows: this raw material fusing point is at 66 DEG C, and brittle temperature, lower than-70 DEG C, can make film have excellent anti-freezing property after interpolation; By Mitsui Chemical Manufacture.
LLDPE: model is LL1002X75, and its performance indications are as follows: fusing point is 120-125 DEG C, and elongation at break is greater than 420%, and fracture tensile strength is greater than 45Mpa; Produced by Exxon Mobil Corporation.
Slipping agent is organic slipping agent, and its model is SL07PP, adds as slipping agent, can reduce the coefficient of friction of film; Produced by Mitsui Chemical Manufacture company.
Biaxial tension nylon film (BOPA), its technical indicator is as follows: hot strength: transverse direction >=200Mpa, longitudinal direction >=180 Mpa; Elongation at break: laterally >=180%, longitudinally >=80%; Percent thermal shrinkage≤3%; Coefficient of friction≤0.80; Mist degree≤1.5%; Glossiness >=85%; Inner face wetting tension >=52mN/m; Produced by foundation for a great undertaking company of Du Pont.
Biaxial tension plating silicon nylon membrane (GL-PA), its technical indicator is as follows: hot strength: transverse direction >=200Mpa, longitudinal direction >=180 Mpa; Elongation at break: laterally >=180%, longitudinally >=80%; Percent thermal shrinkage≤3%; Coefficient of friction≤0.80; Mist degree≤1.5%; Glossiness >=85%; Inner face wetting tension >=52mN/m, steam penetrating capacity is lower than 0.4g/(㎡ 24h), OTR oxygen transmission rate is lower than 0.4cc/(m224h); Produced by foundation for a great undertaking company of Du Pont.
Compound adhesive used is UK3640, is produced by Henkel Corp.; Adhesive operation concentration controls to examine grace cup 14 ~ 16 seconds, suitable coating weight at No. 3, and baking temperature is 60 DEG C.
Above-mentioned and following hot strength detects according to GB 13022 standard; Elongation at break detects according to GB 13022 standard; Tearing strength detects according to QB/T 1130 standard; Peel strength detects according to GB 8808-88 standard; Heat sealing strength carries out detection according to QB/T 2358-1998 standard and sweeps; Anti-pendulum impact strength detects according to GB/T8809-88 standard; Coefficient of friction detects according to GB10006-88 standard; Puncture-resistant performance detects according to BS 4816 standard; OTR oxygen transmission rate detects by GB/T1038-2000 standard;
Above-mentioned and following steam penetrating capacity detects by GB/T1037-1988 standard, and experimental condition is temperature is (38 ± 0.6) DEG C, relative humidity 90% ± 2%, during test by heat cover towards the low side of humidity.
The detection method of above-mentioned and following freeze proof cold tolerance is freeze proof cold tolerance: after sample is placed 2h at-40 DEG C, use film pendulum impact test instrument measure film impact property, determine the cold resistance of packing according to the change of front and back impact property;
Account form is as follows:
CT=(IR2/IR1)*100%
In formula: CT-cold resistance, %
The anti-Charpy impact energy of the film measured under IR1-normal environment conditions, the IR2--40 DEG C of anti-Charpy impact energy of film measured.
Embodiment 1: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Pulp furnish: the resin of corona layer is the hybrid resin of A-4085S and LL1002X75, the weight ratio of A-4085S and LL1002X75 is 8:2; The resin of hot sealing layer is the hybrid resin of Exceed 1018CA, LD100AC, SL07PP, the weight ratio 85:15:1 of Exceed 1018CA, LD100AC, SL07PP.
Preparation method: raw material co-extrusion modling in double-deck extruder of (1) described corona layer and hot sealing layer, makes polyethylene film; During extrusion molding, the temperature of resin is 210 ~ 260 DEG C;
(2) the polyethylene film cooling and shaping of extrusion molding; Hauling speed 25 ~ 40m/min, chilling temperature is 20 ~ 40 DEG C;
(3) polyethylene film after cooling and shaping carries out trimming;
(4) polyethylene film after trimming and biaxial tension are plated silicon nylon membrane and biaxial tension nylon film and are sticked with glue agent and carry out compound; Carry out compound by dry compound machine, adhesive operation concentration used controls to examine grace cup 14 seconds at No. 3, and baking temperature is 80 DEG C, and compounding machine speed is 120m/min;
(5) finally cut rolling film, the thickness making PE film is the composite package film of 90 μm.
The technical indicator of the present embodiment gained composite package film is as follows:
Hot strength: horizontal 350Mpa, longitudinally 480 Mpa; Elongation at break: horizontal 100%, longitudinal 80%; Tearing strength: horizontal 125N/mm, longitudinal 210N/mm; Peel strength: 5.0 N/15mm, heat sealing strength: 79N/15mm, anti-Charpy impact energy: 1.0 J, coefficient of friction: 0.32; Puncture-resistant performance 1.6N/ μm; Freeze proof cold tolerance 70%; Resistance to 121 DEG C, boiling in 60 minutes, peel strength 5.0 N/15mm after boiling; Steam penetrating capacity 0.15 g/(㎡ 24h), OTR oxygen transmission rate 0.21cc/(m224h).
Embodiment 2: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Except the weight ratio 50:15:1 of Exceed 1018CA, LD100AC, SL07PP in the resin of hot sealing layer, all the other are identical with embodiment 1.
The heat sealing strength 53N/15mm of the present embodiment gained composite package film.
Embodiment 3: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Except the weight ratio 55:15:1 of Exceed 1018CA, LD100AC, SL07PP in the resin of hot sealing layer, all the other are identical with embodiment 1.
The heat sealing strength 57N/15mm of the present embodiment gained composite package film.
Embodiment 4: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Except the weight ratio 60:15:1 of Exceed 1018CA, LD100AC, SL07PP in the resin of hot sealing layer, all the other are identical with embodiment 1.
The heat sealing strength 60/15mm of the present embodiment gained composite package film.
Embodiment 5: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Except the weight ratio 65:15:1 of Exceed 1018CA, LD100AC, SL07PP in the resin of hot sealing layer, all the other are identical with embodiment 1.
The heat sealing strength 64/15mm of the present embodiment gained composite package film.
Embodiment 6: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Except the weight ratio 70:15:1 of Exceed 1018CA, LD100AC, SL07PP in the resin of hot sealing layer, all the other are identical with embodiment 1.
The heat sealing strength 67/15mm of the present embodiment gained composite package film.
Embodiment 7: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Except the weight ratio 75:15:1 of Exceed 1018CA, LD100AC, SL07PP in the resin of hot sealing layer, all the other are identical with embodiment 1.
The heat sealing strength 71/15mm of the present embodiment gained composite package film.
Embodiment 8: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Except the weight ratio 80:15:1 of Exceed 1018CA, LD100AC, SL07PP in the resin of hot sealing layer, all the other are identical with embodiment 1.
The heat sealing strength 75/15mm of the present embodiment gained composite package film.
By the heat-sealing result of embodiment 2-8, along with the growth of Exceed 1018CA addition, heat seal strength rises gradually, and linearly trend.
Embodiment 9: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Except in the resin of corona layer, the weight ratio of A-4085S and LL1002X75 is 7:3, and all the other are identical with embodiment 1.
The technical indicator of the present embodiment gained composite package film is as follows:
Hot strength: horizontal 350Mpa, longitudinally 480 Mpa; Elongation at break: horizontal 100%, longitudinal 80%; Tearing strength: horizontal 125N/mm, longitudinal 210N/mm; Peel strength: 5.0N/15mm, heat sealing strength: 79N/15mm, anti-Charpy impact energy: 1.0J, coefficient of friction: 0.32; Puncture-resistant performance 1.6N/ μm; Freeze proof cold tolerance 70%; Resistance to 121 DEG C, boiling in 60 minutes, peel strength 5.0N/15mm after boiling; Steam penetrating capacity 0.15g/(㎡ 24h), OTR oxygen transmission rate 0.21cc/(m224h).
Embodiment 10: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Except in the resin of corona layer, the weight ratio of A-4085S and LL1002X75 is 6:4, and all the other are identical with embodiment 1.
The anti-Charpy impact energy of the present embodiment gained composite package film: 0.8J; Freeze proof cold tolerance 67%.
Embodiment 11: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Except in the resin of corona layer, the weight ratio of A-4085S and LL1002X75 is 5:5, and all the other are identical with embodiment 1.
The anti-Charpy impact energy of the present embodiment gained composite package film: 0.7J; Freeze proof cold tolerance 65%.
Embodiment 12: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Except in the resin of corona layer, the weight ratio of A-4085S and LL1002X75 is 4:6, and all the other are identical with embodiment 1.
The anti-Charpy impact energy of the present embodiment gained composite package film: 0.5J; Freeze proof cold tolerance 63%.
By the result of embodiment 9-12, when the weight ratio of A-4085S and LL1002X75 is between 4:6 ~ 6:4, anti-Charpy impact can rise comparatively fast, does not substantially change between 7:3 ~ 8:2, and freeze proof cold tolerance declines.
Embodiment 13: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Except extruding in operation, resin temperature is outside 210 DEG C, and all the other are identical with embodiment 1.
The technical indicator of the present embodiment gained composite package film is as follows:
Hot strength: horizontal 350Mpa, longitudinally 480 Mpa; Tearing strength: horizontal 125N/mm, longitudinal 210N/mm; Anti-Charpy impact energy: 0.6J, coefficient of friction: 0.26; Steam penetrating capacity 0.15g/(㎡ 24h), OTR oxygen transmission rate 0.21cc/(m224h).
Embodiment 14: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Except extruding in operation, resin temperature is outside 220 DEG C, and all the other are identical with embodiment 1.
The technical indicator of the present embodiment gained composite package film is as follows:
Hot strength: horizontal 330Mpa, longitudinally 450 Mpa; Tearing strength: horizontal 120N/mm, longitudinal 230N/mm; Anti-Charpy impact energy: 0.8J, coefficient of friction: 0.28; Steam penetrating capacity 0.14 g/(㎡ 24h), OTR oxygen transmission rate 0.21cc/(m224h).
Embodiment 15: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Except extruding in operation, resin temperature is outside 230 DEG C, and all the other are identical with embodiment 1.
The technical indicator of the present embodiment gained composite package film is as follows:
Hot strength: horizontal 314Mpa, longitudinally 440 Mpa; Tearing strength: horizontal 116N/mm, longitudinal 235N/mm; Anti-Charpy impact energy: 1.0J, coefficient of friction: 0.30; Steam penetrating capacity 0.15g/(㎡ 24h), OTR oxygen transmission rate 0.20cc/(m224h).
Embodiment 16: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Except extruding in operation, resin temperature is outside 240 DEG C, and all the other are identical with embodiment 1.
The technical indicator of the present embodiment gained composite package film is as follows:
Hot strength: horizontal 308Mpa, longitudinally 425 Mpa; Tearing strength: horizontal 110N/mm, longitudinal 239N/mm; Anti-Charpy impact energy: 1.0J, coefficient of friction: 0.31; Steam penetrating capacity 0.16g/(㎡ 24h), OTR oxygen transmission rate 0.20cc/(m224h).
Embodiment 17: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Except extruding in operation, resin temperature is outside 250 DEG C, and all the other are identical with embodiment 1.
The technical indicator of the present embodiment gained composite package film is as follows:
Hot strength: horizontal 300Mpa, longitudinal 410Mpa; Tearing strength: horizontal 105N/mm, longitudinal 244N/mm; Anti-Charpy impact energy: 0.8J, coefficient of friction: 0.32; Steam penetrating capacity 0.16g/(㎡ 24h), OTR oxygen transmission rate 0.20cc/(m224h).
By the result of embodiment 13-17, when resin temperature improves, the slipping of film declines: coefficient of friction improves; Fracture tensile strength declines; Impact strength improves, but after bringing up to peak value, the continuation rise impact intensity with resin temperature can decline; Machine direction tear improves, and cross direction tear strength declines.So extrusion temperature is defined as 210 ~ 250 DEG C.
Embodiment 18: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Except PE film thickness is 80 μm, all the other are identical with embodiment 1.
The technical indicator of the present embodiment gained composite package film is as follows:
Hot strength: horizontal 300Mpa, longitudinally 410 Mpa; Elongation at break: horizontal 100%, longitudinal 80%; Tearing strength: horizontal 125N/mm, longitudinal 210N/mm; Anti-Charpy impact energy: 0.8J, coefficient of friction: 0.28; Puncture-resistant performance 1.6N/ μm; Steam penetrating capacity 0.15g/(㎡ 24h), OTR oxygen transmission rate 0.21cc/(m224h).
Embodiment 19: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Except PE film thickness is 85 μm, all the other are identical with embodiment 1.
The technical indicator of the present embodiment gained composite package film is as follows:
Hot strength: horizontal 330Mpa, longitudinally 450 Mpa; Elongation at break: horizontal 100%, longitudinal 80%; Tearing strength: horizontal 125N/mm, longitudinal 210N/mm; Anti-Charpy impact energy: 0.9J, coefficient of friction: 0.30; Puncture-resistant performance 1.6N/ μm; Steam penetrating capacity 0.14 g/(㎡ 24h), OTR oxygen transmission rate 0.21cc/(m224h).
Embodiment 20: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Except PE film thickness is 90 μm, all the other are identical with embodiment 1.
The technical indicator of the present embodiment gained composite package film is as follows:
Hot strength: horizontal 350Mpa, longitudinally 480 Mpa; Elongation at break: horizontal 100%, longitudinal 80%; Tearing strength: horizontal 125N/mm, longitudinal 210N/mm; Anti-Charpy impact energy: 1.1J, coefficient of friction: 0.28; Puncture-resistant performance 1.6N/ μm; Steam penetrating capacity 0.14 g/(㎡ 24h), OTR oxygen transmission rate 0.21cc/(m224h).
By embodiment 18-20 result, when film thickness improves, film slipping improves, and coefficient of friction declines; Hot strength improves; Impact strength improves comparatively remarkable.Therefore the thickness of PE film is preferably 80 μm ~ 90 μm.
Embodiment 21: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Except hauling speed is 20m/min, all the other are identical with embodiment 1.
The technical indicator of the present embodiment gained composite package film is as follows:
Hot strength: horizontal 350Mpa, longitudinally 480 Mpa; Anti-Charpy impact energy: 1.1J, coefficient of friction: 0.32; Steam penetrating capacity 0.15g/(㎡ 24h), OTR oxygen transmission rate 0.21cc/(m224h).
Embodiment 22: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Except hauling speed is 25m/min, all the other are identical with embodiment 1.
The technical indicator of the present embodiment gained composite package film is as follows:
Hot strength: horizontal 350Mpa, longitudinally 480 Mpa; Anti-Charpy impact energy: 1.1J, coefficient of friction: 0.30; Steam penetrating capacity 0.14g/(㎡ 24h), OTR oxygen transmission rate 0.21cc/(m224h).
Embodiment 23: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Except hauling speed is 30m/min, all the other are identical with embodiment 1.
The technical indicator of the present embodiment gained composite package film is as follows:
Hot strength: horizontal 350Mpa, longitudinally 480 Mpa; Anti-Charpy impact energy: 1.0J, coefficient of friction: 0.28; Steam penetrating capacity 0.14g/(㎡ 24h), OTR oxygen transmission rate 0.21cc/(m224h).
Embodiment 24: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Except hauling speed is 35m/min, all the other are identical with embodiment 1.
The technical indicator of the present embodiment gained composite package film is as follows:
Hot strength: horizontal 350Mpa, longitudinally 480 Mpa; Anti-Charpy impact energy: 0.9J, coefficient of friction: 0.28; Steam penetrating capacity 0.14g/(㎡ 24h), OTR oxygen transmission rate 0.21cc/(m224h).
Embodiment 25: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Except hauling speed is 40m/min, all the other are identical with embodiment 1.
The technical indicator of the present embodiment gained composite package film is as follows:
Hot strength: horizontal 350Mpa, longitudinally 480 Mpa; Anti-Charpy impact energy: 0.9J, coefficient of friction: 0.26; Steam penetrating capacity 0.14g/(㎡ 24h), OTR oxygen transmission rate 0.21cc/(m224h).
By the result of embodiment 21-25, when hauling speed improves, the smoothness of film improves, and coefficient of friction declines; Hot strength is without significant change; Impact strength slightly declines.Therefore hauling speed is 20 ~ 40m/min.
Embodiment 26: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Except the weight ratio 50:50:1 of Exceed 1018CA, LD100AC, SL07PP in the resin of hot sealing layer, all the other are identical with embodiment 1.
The heat sealing strength 44/15mm of the present embodiment gained composite package film, coefficient of friction is 0.36.
Embodiment 27: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Except the weight ratio 60:30:2 of Exceed 1018CA, LD100AC, SL07PP in the resin of hot sealing layer, all the other are identical with embodiment 1.
The heat sealing strength 53/15mm of the present embodiment gained composite package film, coefficient of friction is 0.25.
Embodiment 28: originally can adopt following pulp furnish and preparation method by heating using microwave composite package film.
Except the weight ratio 75:40:1.5 of Exceed 1018CA, LD100AC, SL07PP in the resin of hot sealing layer, all the other are identical with embodiment 1.
The heat sealing strength 51/15mm of the present embodiment gained composite package film, coefficient of friction is 0.29.
Claims (10)
1. can a heating using microwave composite package film, it is characterized in that: it is from inside to outside followed successively by and plates silicon nylon membrane by polyethylene film, biaxial tension and biaxial tension nylon film is composited; Described polyethylene film is made up of corona layer and hot sealing layer; Described hot sealing layer is made up of metallocene PE, low density polyethylene (LDPE) and slipping agent, and the weight ratio of described metallocene PE, low density polyethylene (LDPE) and slipping agent is 50 ~ 85:15 ~ 50:1 ~ 2; Described corona layer is made up of the ethylene elastomer of 40 ~ 80% weight and the LLDPE of 20 ~ 60% weight.
2. according to claim 1 can heating using microwave composite package film, it is characterized in that: the ethylene elastomer adopting following performance indications: fusing point is 65 ~ 66 DEG C, and brittle temperature is less than-70 DEG C; Adopt the LLDPE of following performance indications: fusing point is 120 ~ 125 DEG C, and elongation at break is greater than 420%, and fracture tensile strength is greater than 45Mpa.
3. according to claim 1 and 2 can heating using microwave composite package film, it is characterized in that, adopt the biaxial tension plating silicon nylon membrane of following performance indications: hot strength: transverse direction>=200Mpa, longitudinal direction>=180Mpa; Elongation at break: laterally>=180%, longitudinally>=80%; Percent thermal shrinkage≤3%; Coefficient of friction≤0.80; Mist degree≤1.5%; Glossiness>=85%; Inner face wetting tension>=52mN/m; Steam penetrating capacity is lower than 0.4g/ (m
224h), OTR oxygen transmission rate is lower than 0.4cc/ (m
224h).
4. according to claim 1 and 2 can heating using microwave composite package film, it is characterized in that, adopt the biaxial tension nylon film of following performance indications: hot strength: transverse direction >=200Mpa, longitudinal direction >=180Mpa; Elongation at break: laterally >=180%, longitudinally >=80%; Percent thermal shrinkage≤3%; Coefficient of friction≤0.80; Mist degree≤1.5%; Glossiness >=85%; Inner face wetting tension >=52mN/m.
5. can a heating using microwave composite package film, it is characterized in that: it is from inside to outside followed successively by and plates silicon nylon membrane by polyethylene film, biaxial tension and biaxial tension nylon film is composited; Described polyethylene film is made up of corona layer and hot sealing layer; Described hot sealing layer is made up of metallocene PE, low density polyethylene (LDPE) and slipping agent, and the weight ratio of described metallocene PE, low density polyethylene (LDPE) and slipping agent is 50 ~ 85:15 ~ 50:1 ~ 2; Adopt the biaxial tension plating silicon nylon membrane of following performance indications: hot strength: transverse direction>=200Mpa, longitudinal direction>=180Mpa; Elongation at break: laterally>=180%, longitudinally>=80%; Percent thermal shrinkage≤3%; Coefficient of friction≤0.80; Mist degree≤1.5%; Glossiness>=85%; Inner face wetting tension>=52mN/m; Steam penetrating capacity is lower than 0.4g/ (m
224h), OTR oxygen transmission rate is lower than 0.4cc/ (m
224h).
6. according to claim 5 can heating using microwave composite package film, it is characterized in that: the metallocene PE adopting following performance indications: fusing point is 82 ~ 84 DEG C, elongation at break is greater than 500%, yield tensile strength is greater than 8Mpa, fracture tensile strength is greater than 50Mpa, and dart impact strength is greater than 140g;
Adopt the low density polyethylene (LDPE) of following performance indications: fusing point is 100 ~ 105 DEG C, and elongation at break is greater than 350%, and dart impact strength is greater than 75g.
7. can a heating using microwave composite package film, it is characterized in that: it is from inside to outside followed successively by and plates silicon nylon membrane by polyethylene film, biaxial tension and biaxial tension nylon film is composited; Described polyethylene film is made up of corona layer and hot sealing layer; Described hot sealing layer is made up of metallocene PE, low density polyethylene (LDPE) and slipping agent, and the weight ratio of described metallocene PE, low density polyethylene (LDPE) and slipping agent is 50 ~ 85:15 ~ 50:1 ~ 2; Adopt the biaxial tension nylon film of following performance indications: hot strength: transverse direction >=200Mpa, longitudinal direction >=180Mpa; Elongation at break: laterally >=180%, longitudinally >=80%; Percent thermal shrinkage≤3%; Coefficient of friction≤0.80; Mist degree≤1.5%; Glossiness >=85%; Inner face wetting tension >=52mN/m.
8. any one described in claim 1-7 can the preparation method of heating using microwave composite package film, and it is characterized in that, the method step is:
(1) raw material of described corona layer and hot sealing layer co-extrusion modling in double-deck extruder, makes polyethylene film;
(2) the polyethylene film cooling and shaping of extrusion molding;
(3) polyethylene film after cooling and shaping and biaxial tension are plated silicon nylon membrane and biaxial tension nylon film and are sticked with glue agent and carry out compound and can obtain described composite package film.
9. according to claim 8 can the preparation method of heating using microwave composite package film, it is characterized in that: the extrusion temperature in described step (1) is 210 ~ 260 DEG C.
10. according to claim 8 can the preparation method of heating using microwave composite package film, it is characterized in that: the hauling speed 20 ~ 40m/min in described step (2) during cooling and shaping.
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2925633B1 (en) * | 2012-11-30 | 2016-11-09 | Bemis Company, Inc. | Flexible self-sealing self-venting hot-fill container |
| NO20121547A1 (en) * | 2012-12-21 | 2014-06-23 | Nexans | ROV cable insulation systems |
| CN103507363A (en) * | 2013-10-20 | 2014-01-15 | 江苏申凯包装高新技术股份有限公司 | Drop-resistant composite packaging bag |
| CN103834091B (en) * | 2014-03-04 | 2016-03-30 | 芜湖市艾德森自动化设备有限公司 | A kind of take linear low density polyethylene as capacitor metalized film of matrix and preparation method thereof |
| CN104085159A (en) * | 2014-06-30 | 2014-10-08 | 海宁市产品质量监督检验所 | One-way linear easily-torn composite membrane |
| CN105856776B (en) * | 2016-03-31 | 2018-07-20 | 湖北德威包装科技有限公司 | A kind of puncture-resistant high temperature fresh-keeping boiling film and preparation method thereof |
| CN105947422A (en) * | 2016-04-28 | 2016-09-21 | 青岛日之容塑料制品有限公司 | Packaging bag for microwave oven and preparation method of packaging bag |
| CN108068421A (en) * | 2017-12-26 | 2018-05-25 | 常州市华健药用包装材料股份有限公司 | Medicinal high-speed packaging polyethylene film |
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| CN2239947Y (en) * | 1995-09-21 | 1996-11-13 | 吕东津 | Food packing bag for microwave oven |
| CN2637378Y (en) * | 2003-09-01 | 2004-09-01 | 上海紫江彩印包装有限公司 | Five layer coextrusion high interception package composite film |
| CN1733397A (en) * | 2004-07-09 | 2006-02-15 | 朱春蕾 | Biaxial tension co-extrusion high-obstruct base material membrane and process for preparing the same |
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| JPH09199271A (en) * | 1996-01-18 | 1997-07-31 | Toppan Printing Co Ltd | Microwave heating sheet and package using this sheet |
| JP2007008046A (en) * | 2005-06-30 | 2007-01-18 | Mitsubishi Plastics Ind Ltd | Film for deep drawing, bottom material for deep drawing packaging and deep drawing packaging |
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| CN2239947Y (en) * | 1995-09-21 | 1996-11-13 | 吕东津 | Food packing bag for microwave oven |
| CN2637378Y (en) * | 2003-09-01 | 2004-09-01 | 上海紫江彩印包装有限公司 | Five layer coextrusion high interception package composite film |
| CN1733397A (en) * | 2004-07-09 | 2006-02-15 | 朱春蕾 | Biaxial tension co-extrusion high-obstruct base material membrane and process for preparing the same |
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