CN2262007Y - High Strength multilayer film for liquid package - Google Patents
High Strength multilayer film for liquid package Download PDFInfo
- Publication number
- CN2262007Y CN2262007Y CN 96200886 CN96200886U CN2262007Y CN 2262007 Y CN2262007 Y CN 2262007Y CN 96200886 CN96200886 CN 96200886 CN 96200886 U CN96200886 U CN 96200886U CN 2262007 Y CN2262007 Y CN 2262007Y
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- China
- Prior art keywords
- density polyethylene
- layer
- multilayer film
- utility
- low density
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- Expired - Fee Related
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Abstract
The utility model discloses a multilayer film for liquid package. The surface layer of the utility model is a high-density polyethylene layer, a middle layer is a linear low-density polyethylene layer, and a bottom layer is a low-density polyethylene layer. Utilizing the complementary performances, the utility model enhances strength. The performance for anti puncture is superior, and the printing effect of the surface layer is better. The appearance of the good pearly lustre is maintained, and simultaneously, the consumption of pearly lustre material is reduced further. The cost is reduced.
Description
The utility model belongs to the packing of special shape.
Multilayer film utilize the combination of different material, can make to have the different performance feature film product is arranged, and give full play to the benefit of its mutual supplement with each other's advantages, adapt to different purposes needs.General multilayer film as packaging for foodstuff supply the material of combination selection to mainly contain low density polyethylene (LDPE) (LDPE), high density polyethylene (HDPE) (HDPE), vinyl acetate (EVA), iolon, nylon and polyvinylidene chloride.They can be used as base-material and make up for mutual two layers or three layers.Chinese patent 93201660.X discloses a kind of " the multilayer nacreous film of liquid soft package ", its structural pattern belongs to LDPE-HDPE, LDPE-HDPE-HDPE, be added with pearlescent material in the low density polyethylene (LDPE) of its upper epidermis (LDPE), purpose is to reduce the pearlescent material consumption and improves presentation quality and effect.Though low density polyethylene (LDPE) crystallinity comparatively speaking is low, side chain is more, and percentage elongation is bigger, and punctured resistance is low; The crystallinity height of high density polyethylene (HDPE), side chain is few, good rigidly, punctured resistance is moderate, but its printing performance is fine, and it is set to the internal layer of packaging bag, and then its potentiality can't be brought into play.
The purpose of this utility model is to propose a kind of improved liquid packing high strength multi-layer film.It has better comprehensive performance.
This liquid packing high strength multi-layer film is made up of three Structural layers, it is characterized in that one is that top top layer is the high density polyethylene (HDPE) pearlite layer, and one is that the middle level is a linear low density polyethylene layer, is that bottom is a low density polyethylene layer below.
Good effect of the present utility model is:
1, the high density polyethylene (HDPE) on top layer, good rigidly, punctured resistance is moderate, can reduce its bed thickness, and corresponding pearlescent material consumption reduces, and helps cost-cutting; Utilize its good printing performance simultaneously, outstanding its better colored printing effect when keeping its pearlescent appearance quality.
2, select for use the very high linear low density polyethylene of percentage elongation and punctured resistance (LLDPE) as the middle level, its fusion index is (product of different vendor) between 0.6-2.0, for light duty packaging film, its value is tending towards the following scope of low side, thereby pulling strengrth, breaking elongation, performances such as strength under shock all are increase tendency, and its effect is apparent.
3, the low density polyethylene (LDPE) of bottom, resiliency is good.
Following table be different polyethylene foils the binomial performance ratio:
| Linear low density polyethylene | Low density polyethylene (LDPE) | High density polyethylene (HDPE) | |
| Percentage elongation | Very high | By | Low |
| Punctured resistance | Very high | Low | By |
---do from " novel plastic film " P20 China Light Industry Press.
With the packaging bag that this structural materials is made, the broken rate of storing can reduce greatly.Combination property be improved significantly.
Accompanying drawing is a structural representation of the present utility model.
Figure mesexine 1 is the high density polyethylene (HDPE) pearlite layer, and middle level 2 is a linear low density polyethylene layer, and bottom 3 is a low density polyethylene layer.This structural membrane can be produced with three layers of blown film shaped device.
Adopt Hubei to produce SF-1400 blown film unit dish extrusion-blown modling manufactured three-decker film, the top layer is a high density polyethylene (HDPE), control thickness is 0.015 millimeter, thereby pearlescent material is corresponding can further reduce than the addition of general 0.02 millimeter thickness, thus cost-cutting.The middle level is a linear low density polyethylene, and thickness is 0.03 millimeter, can give full play to its percentage elongation height, the performance that punctured resistance is big.Bottom is 0.015 millimeter a low density polyethylene (LDPE), and punctured resistance hangs down and relatively is suitable for doing liner.This structure is to bringing into play its Combination property, and it is also more favourable to reduce production costs.By improving the package packing machine performance, it is still potential further to reduce film thickness.
Claims (2)
1, a kind of liquid packing high strength multi-layer film, form by three Structural layers, it is characterized in that one is that top top layer (1) is the high density polyethylene (HDPE) pearlite layer, one is that middle level (2) is a linear low density polyethylene layer, is that bottom (3) is a low density polyethylene layer below.
2, multilayer film as claimed in claim 1, the thickness that it is characterized in that top layer (1) is 0.015 millimeter, and middle level (2) are 0.03 millimeter, and bottom (3) is 0.015 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96200886 CN2262007Y (en) | 1996-05-29 | 1996-05-29 | High Strength multilayer film for liquid package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96200886 CN2262007Y (en) | 1996-05-29 | 1996-05-29 | High Strength multilayer film for liquid package |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2262007Y true CN2262007Y (en) | 1997-09-10 |
Family
ID=33887319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96200886 Expired - Fee Related CN2262007Y (en) | 1996-05-29 | 1996-05-29 | High Strength multilayer film for liquid package |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2262007Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475074B (en) * | 2009-01-22 | 2012-05-16 | 黄山永佳（集团）有限公司 | Self-lubricating polyethylene membrane |
-
1996
- 1996-05-29 CN CN 96200886 patent/CN2262007Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475074B (en) * | 2009-01-22 | 2012-05-16 | 黄山永佳（集团）有限公司 | Self-lubricating polyethylene membrane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |