CN103043300B - Packaging container - Google Patents
Packaging container Download PDFInfo
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- CN103043300B CN103043300B CN201210594866.0A CN201210594866A CN103043300B CN 103043300 B CN103043300 B CN 103043300B CN 201210594866 A CN201210594866 A CN 201210594866A CN 103043300 B CN103043300 B CN 103043300B
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- density polyethylene
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Abstract
The invention provides a packaging container which comprises an outmost thermoplastic material layer, a core layer, an intermediate thermoplastic material layer, a blocking layer and an innermost thermoplastic material layer from outside to inside. The outmost thermoplastic material layer contains metalloscene catalyst polymerized linear low density polyethylene (MLLDPE) and low density polyethylene (LDPE), the MLLDPE has following parameters: average density of 0.88g/cm3-0.925g/cm3, melt flow index (190 DEG C, 2.16kg) of 5g/10min-20g/10min, peak melting point of 85 DEG C-130 DEG C, and expansion ratio of 1.2-1.8, and the LDPE has following parameters: average density of 0.90g/cm3-0.925g/cm3, melt flow index (190 DEG C, 2.16kg) of 5g/10min-20g/10min, peak melting point of 85 DEG C-110 DEG C, and expansion ratio of 1.2-1.8. A longitudinal sealing portion can realize quick thermal sealing during the process of manufacturing the packaging container, sealing intensity is high, and the manufactured packaging container is high in pass percentage and long in shelf life of liquid food.
Description
Technical field
The present invention relates to a kind of packing container, particularly relate to a kind of packing container for packaging liquid food.
Background technology
At present, for the disposable ARTPackaging containers of liquid food, there is brick, square, triangle, cross-sectional plane is hexagonal octahedral bodily form, the shapes such as pillow-like, the laminate wrapping material of usual these packing containers of manufacture comprises the thermoplastic material outermost layer of lamination successively, sandwich layer, thermoplastic material interlayer, barrier layere, adhesive phase and thermoplastic material innermost layer, also Low Density Polyethylene (LDPE)/printing layer of ink/paper (fiber) base layer/LDPE/ aluminium foil AL/LDPE/LDPE adopting high-pressure process to produce is had, LDPE/ prints layer of ink/paper matrix layer/LDPE/LDPE, printing layer of ink/LDPE/ paper matrix layer/LDPE/LDPE, the laminate wrapping material of the multiple-structures such as layer of ink/paper matrix layer/LDPE/ aluminium/polyester (PET) is printed as LDPE/.The food liquid that these packing containers can be packed has fresh milk, yoghurt, fruit juice etc.
Conventional core material has paper, craft paper or carboard etc., conventional barrier material has aluminium foil, metal/inorganic oxide film, ethylene-vinyl alcohol copolymer (EVOH), nylon etc., conventional thermoplastic material outermost layer, interlayer, the Low Density Polyethylene (LDPE) of the useful high-pressure process production of material of innermost layer, linear low density polyethylene (LLDPE), by the thermoplastic material such as ethyleneα-olefincopolymer (mLLDPE) of metallocene catalyst catalyzed polymerization, conventional adhesives has polyurethane binder, Polyester Polyurethane Adhesive, polyether polyurethane adhesive, acrylic adhesive, polyester binder, polyamide binder, polyvinylacetate adhesive, epoxy adhesive, rubber adhesive etc.
The effect of each layer of packing is: thermoplastic material outermost layer can stop that extraneous moisture, pollution or other magazines enter in packing by actv., and being formed in packing container process with thermoplastic material innermost layer longitudinal sealing at laminate wrapping material is that laminate wrapping material forms tubulose; Sandwich layer can supporting package container; Thermoplastic material interlayer and barrier layere can effectively prevent food liquid from entering into sandwich layer, and simultaneously starvation, sunlight make packing container not light leak, air tight, particularly do not leak oxygen, ensure that food liquid taste does not run off; Thermoplastic material innermost layer directly contacts with food liquid, while guarantee food liquid quality, prevent food liquid to the infiltration of other each layers of packing; Adhesive phase adds the bond strength between high containment and thermoplastic material innermost layer.
Fig. 1 shows a kind of common method manufacturing laminate wrapping material, machine guiding core layer coiled material 1 moves ahead by the pressure roller of stamping station 2, process the hole needed for packing container opening device and the impression needed for folded wrapping materials, continue to guide the sandwich layer coiled material 11 of perforate forward, arrive laminating bench 5, extruder 3 squeezes out thermoplastic material interlayer coiled material and guides it to and reaches laminating bench 5 herein, barrier layere coiled material 4 is directed to laminating bench 5 simultaneously, laminating bench 5 pairs of three-layer coil materials carry out lamination, in its roll gap center core layer, thermoplastic material interlayer and barrier layere are pressed together, and thermoplastic material interlayer is between sandwich layer and barrier layere, become ply wood 111. guide layer pressing plate 111 thus and arrive next stage laminating bench 6, herein by coextruding and coat the opposite side of thermoplastic material innermost layer 7 paint ply wood 111 barrier layere, in the roll gap of laminating bench 6, ply wood 111 and thermoplastic material innermost layer 7 are pressed together, form the laminated material 1111 that inner side is coated with thermoplastic material innermost layer thus, afterwards by extrusion coated thermoplastic material outermost layer on sandwich layer opposite side i.e. outside coating, so far the laminate wrapping material that packing container is used is obtained.Certainly, the outermost coating of thermoplastic material might not be placed on final step and carry out, and also can according to circumstances apply in step suitable before.
The packing container of the laminate wrapping material Production and Packaging food liquid that available said method is made.Secondary pollution is suffered in order to prevent packaged food liquid, the production process of whole packing container all aseptically carries out: be first shaped to by laminate wrapping material cylindric, and form pipe in the longitudinal sealing-in of side, then the horizontal sealing-in in pipe one end, form top or the bottom of packing container, fill required food liquid afterwards, finally the residue of pipe is held horizontal sealing-in, make bottom or the top of packing container.By cutting transverse packed region, single independently packing container can be formed, and by these independently packing container deliver in final folding and shaped device and be converted into net shape, as brick or other shapes.Laminate wrapping material longitudinal sealing, transverse sealing time in formation packing container process can have influence on production efficiency, the qualification rate of intensity effect packing container of longitudinal sealing, transverse sealing and the shelf lives of food liquid.
Chinese invention patent application prospectus CN1337914A discloses a kind of paper container package material, the constituting layer at least comprised has thermoplastic material outermost layer, papery base layer, each constituting layer is also pressed said sequence lamination by barrier layere and thermoplastic material innermost layer, be characterised in that: thermoplastic material innermost layer at least comprises the linear low density polyethylene with narrow molecular weight distribution, there is following performance perameter: average density 0.900-0.915, Peak melting point 88-103 DEG C, melt flow index 5-20, expansion ratio (SR) 1.4-1.6 and thickness 20-50 micron, thermoplastic material outermost layer also adopts the material identical with aforementioned innermost layer to make.These packing make to be easy to pouring package packing container and rapid heat-seal, obtain the more firm container sealed more by force, this material can be used for the excellent sealing that realizes independent of in-built food temperature and thus maintains the ability that in-built product never degenerates and guarantee the quality, but, this packing are in the extruding layer compression technology of manufacturing process, serious necking phenomenon can be there is from during the die head film extrusion of extruder in thermoplastic material outermost layer in molten condition, namely extrusion die dual-side can to middle shrinkage, even there is the phenomenon of breach in edge thickness inequality, papery base layer both sides can be made like this to be capped or cladding thickness uneven, flaw is there is in order to prevent finished product packing material, usually three kinds of terms of settlement are had, a kind of is do wider than the width of papery base layer and barrier layere by the die head of extruder, extrusion die both sides nonconformity part is made not cover on papery base layer, in follow-up lamination operation, cooling forming excises again, another kind is done by the width of papery base layer and barrier layere wider, and after extruding lamination, the flaw part of excision packing both sides, obtains qualified packing, moreover reduce necking phenomenon infringement by increasing thermoplastic material outermost layer thickness.These three kinds of terms of settlement all need many wider than the width of papery base layer and barrier layere of extruder die head, need more heat heating and melting thermoplastic material, cause energy dissipation, and after lamination completes, also will excise the flaw part of packing both sides, cause waste of raw materials.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of packing container, the longitudinal seal energy rapid heat-seal when making packing container, sealing intensity is good, and its manufacture packing container laminate wrapping material process in extrude lamination thermoplastic material outermost layer time can not there is serious necking phenomenon, the serious energy and waste of raw materials can not be caused.
For solving the problems of the technologies described above, the technical scheme that the present invention takes is: a kind of packing container, comprise thermoplastic material outermost layer, sandwich layer, thermoplastic material interlayer, barrier layere and thermoplastic material innermost layer from outside to inside, wherein, described thermoplastic material outermost layer comprises linear low density polyethylene (MLLDPE) and the Low Density Polyethylene (LDPE) of metalloscene catalyst polymerization; The linear low density polyethylene (mLLDPE) of described metalloscene catalyst polymerization has following parameter: average density is 0.88g/cm3 ~ 0.925g/cm3, melt flow index (190 DEG C, 2.16kg) is 5g/10min ~ 20g/10min, Peak melting point is 85 DEG C ~ 130 DEG C, expansion ratio is 1.2 ~ 1.8; Described Low Density Polyethylene (LDPE) has following parameter: average density is 0.90g/cm
3~ 0.925g/cm
3, melt flow index (190 DEG C, 2.16kg) is 5g/10min ~ 20g/10min, Peak melting point is 85 DEG C ~ 110 DEG C, expansion ratio is 1.2 ~ 1.8.
In the present invention, melt flow index according in GB/T3682-2000 melt flow index measuring method 190 DEG C, the condition determination of 2.16kg measures.Expansion ratio represents under the condition determination (namely 190 DEG C, 2.16kg) identical with GB/T3682-2000 melt flow index measuring method, the cross sectional dimensions of the extrudate of measured depanning and the cross sectional dimensions ratio of die orifice.Peak melting point is obtained by differential scanning calorimetry, if two or more peak value, refers to first peak value.Low Density Polyethylene (LDPE) can be linear low density polyethylene (LLDPE), can be also non-linear Low Density Polyethylene, as long as have above-mentioned performance perameter just can meet requirement of the present invention.
One as technique scheme is improved, and wherein, the linear low density polyethylene (mLLDPE) of described metalloscene catalyst polymerization has following parameter: average density is 0.90g/cm
3~ 0.915g/cm
3, melt flow index (190 DEG C, 2.16kg) is 5g/10min ~ 20g/10min, Peak melting point is 88 DEG C ~ 120 DEG C, expansion ratio is 1.4 ~ 1.6.
As the further improvement of technique scheme, wherein, the average density of the linear low density polyethylene (mLLDPE) of described metalloscene catalyst polymerization is 0.905g/cm
3~ 0.910g/cm
3, melt flow index (190 DEG C, 2.16kg) is 5g/10min ~ 20g/10min, Peak melting point is 93 DEG C ~ 103 DEG C, expansion ratio is 1.4 ~ 1.6.
As the further improvement of technique scheme, wherein, described Low Density Polyethylene (LDPE) has following parameter: average density is 0.910g/cm
3~ 0.92g/cm
3, melt flow index (190 DEG C, 2.16kg) is 5g/10min ~ 20g/10min, Peak melting point is 85 DEG C ~ 110 DEG C, expansion ratio is 1.4 ~ 1.6.
As the further improvement of technique scheme, wherein, the average density of described Low Density Polyethylene (LDPE) is 0.915g/cm
3~ 0.920g/cm
3, melt flow index (190 DEG C, 2.16kg) is 5g/10min ~ 20g/10min, Peak melting point is 93 DEG C ~ 103 DEG C, expansion ratio is 1.4 ~ 1.6.
As the further improvement of technique scheme, wherein, the weight percentage (wt) of the linear low density polyethylene (mLLDPE) of described metalloscene catalyst polymerization is 50% ~ 80%, and the weight percentage (wt) of described Low Density Polyethylene (LDPE) is 20% ~ 50%.
As the further improvement of technique scheme, wherein, the weight percentage (wt) of the linear low density polyethylene (mLLDPE) of described metalloscene catalyst polymerization is 60% ~ 75%, and the weight percentage (wt) of described Low Density Polyethylene (LDPE) is 25% ~ 40%.
As the further improvement of technique scheme, wherein, the weight percentage (wt) of the linear low density polyethylene (mLLDPE) of described metalloscene catalyst polymerization is 70%, and the weight percentage (wt) of described Low Density Polyethylene (LDPE) is 30%.
The present invention compared with prior art, thermoplastic material outermost layer due to packing container have employed the linear low density polyethylene (MLLDPE) and Low Density Polyethylene (LDPE) with the polymerization of particular characteristic parameter metalloscene catalyst, in the extruding layer compression technology of laminate wrapping material process manufacturing packing container, thermoplastic material outermost layer to obtain from the necking phenomenon during die head film extrusion of extruder in molten condition and largely reduces, the energy and waste of raw materials phenomenon have and largely suppress, and when making packing container longitudinal seal energy rapid heat-seal in process, sealing intensity is good, the packing container qualification rate made is high, the shelf lives of food liquid is long.
Figure of description
Fig. 1 is a kind of schematic diagram manufacturing laminate wrapping material method.
Fig. 2 is the schematic perspective view of a kind of packing container of the present invention.
Fig. 3 is the sidewall cross-sectional schematic diagram of a kind of packing container of the present invention.
Detailed description of the invention
As shown in Figures 2 and 3, a kind of packing container of the present invention comprises thermoplastic material outermost layer 21, sandwich layer 22, thermoplastic material interlayer 23, barrier layere 24, adhesive phase 25 and thermoplastic material innermost layer 26 from outside to inside successively.
Thermoplastic material outermost layer 21 comprises linear low density polyethylene (MLLDPE) and the Low Density Polyethylene (LDPE) of metalloscene catalyst polymerization, wherein, the linear low density polyethylene (mLLDPE) of metalloscene catalyst polymerization has following parameter: average density is 0.88g/cm
3~ 0.925g/cm
3, melt flow index (190 DEG C, 2.16kg) is 5g/10min ~ 20g/10min, Peak melting point is 85 DEG C ~ 130 DEG C, expansion ratio is 1.2 ~ 1.8; Low Density Polyethylene (LDPE) has following parameter: average density is 0.90g/cm
3~ 0.925g/cm
3, melt flow index (190 DEG C, 2.16kg) is 5g/10min ~ 20g/10min, Peak melting point is 85 DEG C ~ 110 DEG C, expansion ratio is 1.2 ~ 1.8, Low Density Polyethylene (LDPE) can be linear low density polyethylene, also can be non-linear low density polyethylene.The weight percentage (wt) of the linear low density polyethylene (mLLDPE) of metalloscene catalyst polymerization is 50% ~ 80%, and the weight percentage (wt) of Low Density Polyethylene (LDPE) is 20% ~ 50%.
Sandwich layer 22 is the coiled material of paper substrates, after lateral surface printed patterns, crease line is suppressed and after stamping out open hole through indentation roller, then linear low density polyethylene (mLLDPE) and the Low Density Polyethylene of distinguishing the blended metalloscene catalyst polymerization of weight percentage (wt) according to the form below 1 obtain blend, respectively with thickness for 8, 10, 15, the blend extruding layer of 20 microns is pressed onto on papery sandwich layer 21 lateral surface and forms thermoplastic material outermost layer 21, when this blend extrudes formation film from extruder die orifice, film both sides do not form breach, edge thickness is substantially even, dual-side can be very little to middle shrinkage, it is even that these multilayer material both sides are capped thickness.
Continue to guide the sandwich layer coiled material of impression perforate forward, arrive laminating bench, extruder squeezes out the low-density polyethylene film as thermoplastic material interlayer 23 herein, aluminum foil coiled material simultaneously as barrier layere 24 is directed to laminating bench, laminating bench carries out lamination compound to trilaminate material, be pressed together at its roll gap center core layer 22 medial surface, thermoplastic material interlayer 23 and barrier layere 24, then, adhesive phase 25 is formed being pressed onto on barrier layere 24 by polyvinylacetate adhesive extruding layer.
Then the linear low density polyethylene (mLLDPE) of blended metalloscene catalyst polymerization and Low Density Polyethylene obtain blend, wherein, the linear low density polyethylene (mLLDPE) of metalloscene catalyst polymerization has following parameter: average density is 0.910g/cm3, melt flow index (190 DEG C, 2.16kg) is 13g/10min, Peak melting point is 124 DEG C, expansion ratio is 1.5; Low Density Polyethylene (LDPE) has following parameter: average density is 0.918g/cm
3, melt flow index (190 DEG C, 2.16kg) is 7g/10min, Peak melting point is 107 DEG C, expansion ratio is 1.6, and the adhesive phase 25 that the blend extruding layer being 22 microns with thickness is pressed onto this multilayer material forms thermoplastic material innermost layer 26.
The linear low density polyethylene (mLLDPE) of blended metalloscene catalyst polymerization and Low Density Polyethylene obtains blend time, can adopt and the particle Direct Uniform of both materials is mixed, also can adopt by bi-material mix after again melting stir, carry out granulation again and obtain blend particle, the mixture homogeneity of rear a kind of mode is better than front one.
Adhesive phase 25 and thermoplastic material innermost layer 26 can adopt two-layer co-extrusion mode to be laminated on the aluminium foil of barrier layere 24, like this can Simplified flowsheet, and adhesive phase 25 and thermoplastic material innermost layer 26 inter-layer bonding force good.
The laminate wrapping material obtained is on bottle placer in pouring in liquid food products, and can complete packing container longitudinal sealing, transverse sealing by reliable fast speed, the packing container qualification rate made is high, and the shelf lives of food liquid is long.
Table 1:
Claims (8)
1. a packing container, comprise thermoplastic material outermost layer (21), sandwich layer (22), thermoplastic material interlayer (23), barrier layere (24) and thermoplastic material innermost layer (26) from outside to inside, it is characterized in that: described thermoplastic material outermost layer (21) comprises linear low density polyethylene (mLLDPE) and the Low Density Polyethylene (LDPE) of metalloscene catalyst polymerization;
The linear low density polyethylene (mLLDPE) of described metalloscene catalyst polymerization has following parameter: average density is 0.88g/cm
3~ 0.925g/cm
3, melt flow index is 5 g/10min ~ 20 g/10min, Peak melting point is 85 DEG C ~ 130 DEG C, expansion ratio is 1.2 ~ 1.8;
Described Low Density Polyethylene (LDPE) has following parameter: average density is 0.90g/cm
3~ 0.925g/cm
3, melt flow index is 5g/10min ~ 20g/10min, Peak melting point is 85 DEG C ~ 110 DEG C, expansion ratio is 1.2 ~ 1.8;
Described melt flow index condition determination is 190 DEG C, 2.16kg.
2. a kind of packing container according to claim 1, is characterized in that: the linear low density polyethylene (mLLDPE) of described metalloscene catalyst polymerization has following parameter: average density is 0.90g/cm
3~ 0.915g/cm
3, melt flow index is 5 g/10min ~ 20 g/10min, Peak melting point is 88 DEG C ~ 120 DEG C, expansion ratio is 1.4 ~ 1.6; Described melt flow index condition determination is 190 DEG C, 2.16kg.
3. a kind of packing container according to claim 1, is characterized in that: the average density of the linear low density polyethylene (mLLDPE) of described metalloscene catalyst polymerization is 0.905g/cm
3~ 0.910g/cm
3, melt flow index is 5g/10min ~ 20 g/10min, Peak melting point is 93 DEG C ~ 103 DEG C, expansion ratio is 1.4 ~ 1.6; Described melt flow index condition determination is 190 DEG C, 2.16kg.
4. a kind of packing container according to claim 1, is characterized in that: described Low Density Polyethylene (LDPE) has following parameter: average density is 0.910 g/cm
3~ 0.92g/cm
3, melt flow index is 5g/10min ~ 20g/10min, Peak melting point is 85 DEG C ~ 110 DEG C, expansion ratio is 1.4 ~ 1.6; Described melt flow index condition determination is 190 DEG C, 2.16kg.
5. a kind of packing container according to claim 4, is characterized in that: the average density of described Low Density Polyethylene (LDPE) is 0.915 g/cm
3~ 0.920g/cm
3, melt flow index is 5 g/10min ~ 20 g/10min, Peak melting point is 93 DEG C ~ 103 DEG C, expansion ratio is 1.4 ~ 1.6; Described melt flow index condition determination is 190 DEG C, 2.16kg.
6. a kind of packing container according to any one of claim 1 to 5, it is characterized in that: in described thermoplastic material outermost layer (21), the weight percentage of the linear low density polyethylene (mLLDPE) of metalloscene catalyst polymerization is 50% ~ 80%, and the weight percentage of Low Density Polyethylene (LDPE) is 20% ~ 50%.
7. a kind of packing container according to any one of claim 1 to 5, it is characterized in that: in described thermoplastic material outermost layer (21), the weight percentage of the linear low density polyethylene (mLLDPE) of metalloscene catalyst polymerization is 60% ~ 75%, and the weight percentage of Low Density Polyethylene (LDPE) is 25% ~ 40%.
8. a kind of packing container according to any one of claim 1 to 5, it is characterized in that: in described thermoplastic material outermost layer (21), the weight percentage of the linear low density polyethylene (mLLDPE) of metalloscene catalyst polymerization is 70%, and the weight percentage of described Low Density Polyethylene (LDPE) is 30%.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210594866.0A CN103043300B (en) | 2012-12-31 | 2012-12-31 | Packaging container |
| CN201510156934.9A CN104760357A (en) | 2012-12-31 | 2012-12-31 | Packaging container |
| CN201510156936.8A CN104760336A (en) | 2012-12-31 | 2012-12-31 | Packaging container |
| CN201510156935.3A CN104760358A (en) | 2012-12-31 | 2012-12-31 | Packaging container |
| CN201510156932.XA CN104760356A (en) | 2012-12-31 | 2012-12-31 | Packaging container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210594866.0A CN103043300B (en) | 2012-12-31 | 2012-12-31 | Packaging container |
Related Child Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510156936.8A Division CN104760336A (en) | 2012-12-31 | 2012-12-31 | Packaging container |
| CN201510156932.XA Division CN104760356A (en) | 2012-12-31 | 2012-12-31 | Packaging container |
| CN201510156935.3A Division CN104760358A (en) | 2012-12-31 | 2012-12-31 | Packaging container |
| CN201510156934.9A Division CN104760357A (en) | 2012-12-31 | 2012-12-31 | Packaging container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103043300A CN103043300A (en) | 2013-04-17 |
| CN103043300B true CN103043300B (en) | 2015-04-22 |
Family
ID=48056200
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510156935.3A Withdrawn CN104760358A (en) | 2012-12-31 | 2012-12-31 | Packaging container |
| CN201510156936.8A Withdrawn CN104760336A (en) | 2012-12-31 | 2012-12-31 | Packaging container |
| CN201210594866.0A Ceased CN103043300B (en) | 2012-12-31 | 2012-12-31 | Packaging container |
| CN201510156934.9A Withdrawn CN104760357A (en) | 2012-12-31 | 2012-12-31 | Packaging container |
| CN201510156932.XA Withdrawn CN104760356A (en) | 2012-12-31 | 2012-12-31 | Packaging container |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510156935.3A Withdrawn CN104760358A (en) | 2012-12-31 | 2012-12-31 | Packaging container |
| CN201510156936.8A Withdrawn CN104760336A (en) | 2012-12-31 | 2012-12-31 | Packaging container |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510156934.9A Withdrawn CN104760357A (en) | 2012-12-31 | 2012-12-31 | Packaging container |
| CN201510156932.XA Withdrawn CN104760356A (en) | 2012-12-31 | 2012-12-31 | Packaging container |
Country Status (1)
| Country | Link |
|---|---|
| CN (5) | CN104760358A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104627495B (en) * | 2015-02-04 | 2018-12-21 | 朱双海 | A kind of packing container |
| CN106147634A (en) * | 2015-03-30 | 2016-11-23 | 常熟市新明宇塑胶有限公司 | A kind of three-layer co-extruded blown film glued membrane and preparation technology thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1337914A (en) * | 1999-01-27 | 2002-02-27 | 泰特拉-勒维尔金融控股公司 | Laminated packaging material for paper container |
| CN1652934A (en) * | 2002-05-07 | 2005-08-10 | 利乐拉瓦尔集团及财务有限公司 | Packaging laminate, method for its manufacturing and packaging container manufactured from the packaging laminate |
| CN1805848A (en) * | 2003-06-18 | 2006-07-19 | 博里利斯公司 | Food packaging |
| WO2006091310A1 (en) * | 2005-02-21 | 2006-08-31 | Exxonmobil Chemical Patents Inc. | Multi-layer polyethylene films |
| WO2007032719A1 (en) * | 2005-09-15 | 2007-03-22 | Tetra Laval Holdings & Finance S.A. | A sealing strip as well as a packaging container including such a strip |
| CN102001207A (en) * | 2010-08-30 | 2011-04-06 | 天津精华石化有限公司 | Novel FFS heavy packaging film |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002205359A (en) * | 2000-11-09 | 2002-07-23 | Nihon Tetra Pak Kk | Laminate for packaging material |
| CN102416745B (en) * | 2011-08-05 | 2015-08-12 | 大连瑞贤达塑胶有限公司 | A kind of plastic substrate film of packaging for foodstuff and processing technology thereof |
-
2012
- 2012-12-31 CN CN201510156935.3A patent/CN104760358A/en not_active Withdrawn
- 2012-12-31 CN CN201510156936.8A patent/CN104760336A/en not_active Withdrawn
- 2012-12-31 CN CN201210594866.0A patent/CN103043300B/en not_active Ceased
- 2012-12-31 CN CN201510156934.9A patent/CN104760357A/en not_active Withdrawn
- 2012-12-31 CN CN201510156932.XA patent/CN104760356A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1337914A (en) * | 1999-01-27 | 2002-02-27 | 泰特拉-勒维尔金融控股公司 | Laminated packaging material for paper container |
| CN1652934A (en) * | 2002-05-07 | 2005-08-10 | 利乐拉瓦尔集团及财务有限公司 | Packaging laminate, method for its manufacturing and packaging container manufactured from the packaging laminate |
| CN1805848A (en) * | 2003-06-18 | 2006-07-19 | 博里利斯公司 | Food packaging |
| WO2006091310A1 (en) * | 2005-02-21 | 2006-08-31 | Exxonmobil Chemical Patents Inc. | Multi-layer polyethylene films |
| WO2007032719A1 (en) * | 2005-09-15 | 2007-03-22 | Tetra Laval Holdings & Finance S.A. | A sealing strip as well as a packaging container including such a strip |
| CN102001207A (en) * | 2010-08-30 | 2011-04-06 | 天津精华石化有限公司 | Novel FFS heavy packaging film |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104760358A (en) | 2015-07-08 |
| CN104760356A (en) | 2015-07-08 |
| CN103043300A (en) | 2013-04-17 |
| CN104760336A (en) | 2015-07-08 |
| CN104760357A (en) | 2015-07-08 |
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