CN102225645A - Multilayer co-extruded water sack film - Google Patents
Multilayer co-extruded water sack film Download PDFInfo
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- CN102225645A CN102225645A CN2011101003713A CN201110100371A CN102225645A CN 102225645 A CN102225645 A CN 102225645A CN 2011101003713 A CN2011101003713 A CN 2011101003713A CN 201110100371 A CN201110100371 A CN 201110100371A CN 102225645 A CN102225645 A CN 102225645A
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Abstract
The invention relates to a multilayer co-extruded water sack film, which is characterized in that: the water sack film is a seven-layered co-extruded film, comprising the following layers, from bottom to top: a first metallocene polyethylene layer (1), a first linear low density polyethylene layer (2), a first bonding layer (3), a nylon layer (4), a second bonding layer (5), a second linear low density polyethylene layer (6), and a second metallocene polyethylene layer (7). The multilayer co-extruded water sack film provided by the present invention has advantages of good toughness, good bearing capability, good anti-osmosis performance, no odor, and no pollution to water. With the multilayer co-extruded water sack film provided by the present invention, water quality and safety can be ensured.
Description
Technical field
The present invention relates to a kind of multi-layer co-extruded water bag film, be mainly used in the packing of drinking water.
Background technology
Bag-pack drinking water is the upgrading products of barreled drinking water.Packed water is compared with bottled water, and biggest advantage is fundamentally to have stopped " secondary pollution " of drinking-water.Packed water is compared with bottled water, and the water outlet principle of the two is completely different, and packed water is the normal pressure water outlet by the atmospheric pressure water outlet, and bottled water is the negative pressure water outlet by the air-water displacement water outlet; Drinking of packed water is omnidistance sealing, do not contact from start to finish with air, avoided secondary pollution, it then is that full open model is drunk that bottled water is drunk, its essence of process of having drunk into the air of bucketful from the drinking-water of bucketful is exactly a contaminated process of drinking-water, so the problem of " secondary pollution " of bottled water is unavoidable.Packed in addition water before being filled with water and take up room after using little, during the storage transportation flexibly, convenient, its range of application is more and more widely.The packing water bag of packed water be owing to need bear enormous pressure, so preparation water bag film has been proposed higher requirement, requires its good toughness, bearing capacity is strong, anti-permeability is strong, in addition, because it contacts with drinking water, requires its free from extraneous odour, with assurance water quality.Conventional film is difficult to reach this kind performance requirement.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, provide a kind of good toughness, bearing capacity is strong, anti-permeability is strong, the multi-layer co-extruded water bag film of free from extraneous odour.
The object of the present invention is achieved like this: a kind of multi-layer co-extruded water bag film, described water bag film is the seven-layer co-extrusion film, and it is followed successively by from top to bottom: the first metallocene PE layer, first linear low density polyethylene layer, first adhesive layer, nylon layer, second adhesive layer, second linear low density polyethylene layer and the second metallocene PE layer.
The beneficial effect of the multi-layer co-extruded water bag film of the present invention is:
The present invention was made of seven stacked adding, and by having complementary functions between the different plastic layers, improved its combination property;
The first metallocene PE layer and the second metallocene PE layer improve its low-temperature heat-sealing performance and heat seal strength as upper and lower top layer, and metallocene all adopts the free from extraneous odour metallocene;
First linear low density polyethylene layer and second linear low density polyethylene layer, the toughness and the bearing capacity of raising film;
Nylon layer improves barrier property and intensity;
First adhesive layer and second adhesive layer can well be bonded together the bad material of adjacent two kinds of compatibilities, and not delamination is easy to co-extrusion modling.
The layers of material free from extraneous odour can polluted-water, guarantees water quality safety.
In sum, the multi-layer co-extruded water bag film of the present invention, good toughness, bearing capacity are strong, and anti-permeability is strong, and free from extraneous odour, can not polluted-water is guaranteed water quality safety.
Description of drawings
Fig. 1 is the section structure schematic diagram of a kind of multi-layer co-extruded water bag film that the present invention relates to.
Among the figure:
The first metallocene PE layer 1, first linear low density polyethylene layer 2, first adhesive layer 3, nylon layer 4, second adhesive layer 5, second linear low density polyethylene layer 6, the second metallocene PE layer 7.
The specific embodiment
Referring to Fig. 1, a kind of multi-layer co-extruded water bag film that the present invention relates to, described water bag film is the seven-layer co-extrusion film, and it is followed successively by from top to bottom: the first metallocene PE layer 1, first LLDPE (LLDPE) layer, 2, first adhesive layer 3, nylon (PA) layer 4, second adhesive layer 5, second LLDPE (LLDPE) layer, the 6 and second metallocene PE layer 7.
Claims (1)
1. multi-layer co-extruded water bag film, it is characterized in that: described water bag film is the seven-layer co-extrusion film, and it is followed successively by from top to bottom: the first metallocene PE layer (1), first linear low density polyethylene layer (2), first adhesive layer (3), nylon layer (4), second adhesive layer (5), second linear low density polyethylene layer (6) and the second metallocene PE layer (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101003713A CN102225645A (en) | 2011-04-21 | 2011-04-21 | Multilayer co-extruded water sack film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101003713A CN102225645A (en) | 2011-04-21 | 2011-04-21 | Multilayer co-extruded water sack film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102225645A true CN102225645A (en) | 2011-10-26 |
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ID=44806661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101003713A Pending CN102225645A (en) | 2011-04-21 | 2011-04-21 | Multilayer co-extruded water sack film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102225645A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105729955A (en) * | 2014-12-10 | 2016-07-06 | 东莞奇妙包装有限公司 | A multilayer-structure membrane |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4939076A (en) * | 1988-03-15 | 1990-07-03 | W. R. Grace & Co.-Conn. | Barrier stretch film |
| CN1970288A (en) * | 2006-09-20 | 2007-05-30 | 唐新国 | Seven-layer coextrusion membrane for transfusion and its production method |
| CN101100123A (en) * | 2006-07-06 | 2008-01-09 | 郭瑞林 | Seven-layer co-extrusion high-isolating packaging film |
| CN101693420A (en) * | 2009-10-16 | 2010-04-14 | 江阴升辉包装材料有限公司 | Coextruded film with improved performance and preparation method thereof |
| CN201573373U (en) * | 2009-11-10 | 2010-09-08 | 江阴升辉包装材料有限公司 | Full-plastic multi-layer co-extrusion sheet |
| CN202053628U (en) * | 2011-04-21 | 2011-11-30 | 江阴申恒特种新材料有限公司 | Multilayer co-extrusion water bag film |
-
2011
- 2011-04-21 CN CN2011101003713A patent/CN102225645A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4939076A (en) * | 1988-03-15 | 1990-07-03 | W. R. Grace & Co.-Conn. | Barrier stretch film |
| CN101100123A (en) * | 2006-07-06 | 2008-01-09 | 郭瑞林 | Seven-layer co-extrusion high-isolating packaging film |
| CN1970288A (en) * | 2006-09-20 | 2007-05-30 | 唐新国 | Seven-layer coextrusion membrane for transfusion and its production method |
| CN101693420A (en) * | 2009-10-16 | 2010-04-14 | 江阴升辉包装材料有限公司 | Coextruded film with improved performance and preparation method thereof |
| CN201573373U (en) * | 2009-11-10 | 2010-09-08 | 江阴升辉包装材料有限公司 | Full-plastic multi-layer co-extrusion sheet |
| CN202053628U (en) * | 2011-04-21 | 2011-11-30 | 江阴申恒特种新材料有限公司 | Multilayer co-extrusion water bag film |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105729955A (en) * | 2014-12-10 | 2016-07-06 | 东莞奇妙包装有限公司 | A multilayer-structure membrane |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111026 |