CN212312985U - Recoverable heat-sealable polyester composite film - Google Patents
Recoverable heat-sealable polyester composite film Download PDFInfo
- Publication number
- CN212312985U CN212312985U CN202020667659.3U CN202020667659U CN212312985U CN 212312985 U CN212312985 U CN 212312985U CN 202020667659 U CN202020667659 U CN 202020667659U CN 212312985 U CN212312985 U CN 212312985U
- Authority
- CN
- China
- Prior art keywords
- polyethylene terephthalate
- heat
- terephthalate layer
- sealable
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Laminated Bodies (AREA)
- Wrappers (AREA)
Abstract
The utility model relates to the technical field of packaging bags, in particular to a recoverable heat-sealable polyester composite film, which comprises a high-barrier polyethylene terephthalate layer and a heat-sealable polyethylene terephthalate layer, wherein the high-barrier polyethylene terephthalate layer comprises a polyethylene terephthalate layer and a transparent alumina layer, and the transparent alumina layer is coated on the polyethylene terephthalate layer; the heat-seal strength of the heat-seal polyethylene terephthalate layer is 32N/15MM-38N/15 MM; the high-barrier polyethylene terephthalate layer and the heat-sealable polyethylene terephthalate layer are adhered through a Yuli 9001 aqueous soft adhesive; because the materials of the high-barrier polyethylene terephthalate layer and the heat-sealable polyethylene terephthalate layer are the same, the materials can be directly recycled, almost no pollution is caused to the nature, and the method is suitable for the inevitable trend of social development.
Description
Technical Field
The utility model relates to a wrapping bag technical field, concretely relates to recoverable heat-seal polyester composite film.
Background
At present, in order to achieve different use performances, various different materials are combined together to form various specific use performances, the different materials are combined together through adhesive solidification, the separation difficulty is very high, the different materials are solidified together and cannot be recycled, the recycling value is not high, the materials can only be discarded after the use, the flexible packaging composite material can hardly be dissolved in the nature, untwistable pollution is generated to the nature, and even the deep sea is threatened.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a recoverable heat-sealable polyester composite film, which aims to overcome the defects in the prior art.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides a recoverable heat-sealable polyester composite film, a recoverable heat-sealable polyester composite film which characterized in that: the high-barrier polyethylene terephthalate layer comprises a polyethylene terephthalate layer and a heat-sealable polyethylene terephthalate layer, wherein the high-barrier polyethylene terephthalate layer comprises a polyethylene terephthalate layer and a transparent aluminum oxide layer, and the transparent aluminum oxide layer is coated on the polyethylene terephthalate layer; the heat-seal strength of the heat-seal polyethylene terephthalate layer is 32N/15MM-38N/15 MM; the high-barrier polyethylene terephthalate layer and the heat-sealable polyethylene terephthalate layer are adhered through a Yuli 9001 aqueous soft adhesive.
Wherein the thickness range of the high-barrier polyethylene terephthalate layer is 10-15 μm.
Wherein the thickness of the high-barrier polyethylene terephthalate layer is 12 μm.
Wherein the heat-sealable polyethylene terephthalate layer has a thickness in the range of 40 to 50 μm; the thickness of the heat-sealable layer is in the range of 5-7 μm.
Wherein the thickness of the heat-sealable polyethylene terephthalate layer is in the range of 45 μm, and the thickness of the heat-sealable layer is 6 μm.
The utility model has the advantages that: the high-barrier polyethylene terephthalate layer and the heat-sealable polyethylene terephthalate layer are made of the same materials, so that the structure can be directly recycled, almost does not pollute the nature, and adapts to the inevitable trend of social development; the high-barrier polyethylene terephthalate layer is formed by plating a transparent alumina layer on the polyethylene terephthalate layer, so that the composite film has transparency, high barrier property, good thermal stability, high strength and stable chemical property; the heat-sealable polyethylene glycol terephthalate layer is provided with the heat-sealable layer, so that the heat-sealable polyethylene glycol terephthalate composite film can be directly subjected to heat sealing, is very convenient to use, and can also be widely applied to the fields of forming bag type packaging, card protecting films and the like of various commodities; the jade 9001 aqueous soft glue high-adhesion-strength adhesive is adopted for adhesion, so that the two layers of materials can be bonded softly, the interlayer strength is ensured, and meanwhile, the composite film has good falling resistance and good overall performance effect due to the softness of the adhesive.
Drawings
The present invention is further explained by using the drawings, but the embodiments in the drawings do not constitute any limitation to the present invention, and for those skilled in the art, other drawings can be obtained according to the following drawings without any inventive work.
Fig. 1 is a schematic structural view of the recyclable heat-sealable polyester composite film of the present invention.
Fig. 1 includes:
a high-barrier polyethylene terephthalate layer 1, a heat-sealable polyethylene terephthalate layer 2 and a Yuli 9001 aqueous soft adhesive 3.
Detailed Description
The invention will be further described with reference to the following examples.
The utility model discloses a specific implementation mode of recoverable heat-sealable polyester composite film, as shown in figure 1, including high resistant separation polyethylene terephthalate layer 1 and heat-sealable polyethylene terephthalate layer 2, above-mentioned structure is because two-layer material is the homogeneous substance, can direct recycle, hardly produces the pollution to the nature, adapts to the inevitable trend of social development.
The high-barrier polyethylene terephthalate layer 1 is formed by plating a transparent alumina layer on the polyethylene terephthalate layer, so that the composite film has transparency, high barrier property, good thermal stability, high strength and stable chemical property. The high-barrier polyethylene terephthalate in the application is the prior art, the model thereof is SPET, and the supplier is break-Thai chemical industry Limited company in Nantong City.
The heat-sealable polyethylene terephthalate layer 2 comprises a polyethylene terephthalate layer and a heat-sealable layer, wherein the heat-sealable layer is formed by copolycondensation of the polyethylene terephthalate layer and butanediol/phthalic acid, a small amount of a third monomer (butanediol or phthalic acid) is added into a polyethylene terephthalate monomer in a step-by-step polymerization stage to improve the thermal motion of molecular chains to be fused with each other so as to achieve heat-sealing property, and the heat-sealing strength of the heat-sealable polyethylene terephthalate layer is 32N/15MM-38N/15 MM. The composite film can be directly heat-sealed due to the heat-sealing layer, is very convenient to use, and can be widely applied to the fields of forming bag type packaging, card protecting films and the like of various commodities (such as PET aluminum foil gaskets and wide-mouth bottle sealing films). Heat sealable polyethylene terephthalate is prior art and is supplied by Ruifuxiang packaging materials, Inc., of Pouzo, Inc., model number PET-H.
High resistant separates polyethylene terephthalate layer 1 and heat-sealable polyethylene terephthalate layer 2 and all passes through the adhesion of yuli 9001 waterborne flexible glue 3, adopts the adhesion of yuli 9001 waterborne flexible glue high adhesion strength adhesive, can guarantee that two-layer material can soft bonding to guarantee interlaminar strength, benefit from the compliance of adhesive simultaneously, make the complex film have good resistant falling nature simultaneously, the overall performance is respond well. Yuli 9001 is prior art and is supplied by Yuli chemical plant, Laizhou.
The thickness range of the high-barrier polyethylene terephthalate layer 1 is 10-15 mu m; the thickness of the high-barrier polyethylene terephthalate layer 1 is 10 μm, 12 μm and 15 μm.
The thickness of the heat-sealable polyethylene terephthalate layer 2 is in the range of 40 to 50 μm; the thickness of the heat-sealable layer ranges from 5 to 7 μm; the heat-sealable polyethylene terephthalate layer 2 had a thickness in the range of 40 μm, 45 μm, 50 μm, and the heat-sealable layer had a thickness of 5 μm, 6 μm, 7 μm.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. A recyclable heat-sealable polyester composite film, characterized in that: the high-barrier polyethylene terephthalate layer comprises a polyethylene terephthalate layer and a heat-sealable polyethylene terephthalate layer, wherein the high-barrier polyethylene terephthalate layer comprises a polyethylene terephthalate layer and a transparent aluminum oxide layer, and the transparent aluminum oxide layer is coated on the polyethylene terephthalate layer; the heat-seal strength of the heat-seal polyethylene terephthalate layer is 32N/15MM-38N/15 MM; the high-barrier polyethylene terephthalate layer and the heat-sealable polyethylene terephthalate layer are adhered through a Yuli 9001 aqueous soft adhesive.
2. The recyclable heat-sealable polyester composite film as described in claim 1, wherein: the thickness range of the high-barrier polyethylene terephthalate layer is 10-15 mu m.
3. The recyclable heat-sealable polyester composite film as described in claim 2, wherein: the thickness of the high-barrier polyethylene terephthalate layer is 12 microns.
4. The recyclable heat-sealable polyester composite film as described in claim 1, wherein: the thickness of the heat-sealable polyethylene terephthalate layer ranges from 40 to 50 μm; the thickness of the heat-sealable layer is in the range of 5-7 μm.
5. The recyclable heat-sealable polyester composite film according to claim 4, wherein: the thickness of the heat-sealable polyethylene terephthalate layer ranged from 45 μm, and the thickness of the heat-sealable layer was 6 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020667659.3U CN212312985U (en) | 2020-04-27 | 2020-04-27 | Recoverable heat-sealable polyester composite film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020667659.3U CN212312985U (en) | 2020-04-27 | 2020-04-27 | Recoverable heat-sealable polyester composite film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212312985U true CN212312985U (en) | 2021-01-08 |
Family
ID=74032176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020667659.3U Active CN212312985U (en) | 2020-04-27 | 2020-04-27 | Recoverable heat-sealable polyester composite film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212312985U (en) |
-
2020
- 2020-04-27 CN CN202020667659.3U patent/CN212312985U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2022230812A1 (en) | Layered product, packaging material, and packaging bag | |
| CN212312985U (en) | Recoverable heat-sealable polyester composite film | |
| CN212147844U (en) | Recoverable heat-sealable polypropylene composite film | |
| CN212312984U (en) | Recoverable high-barrier transparent composite film | |
| CN208291851U (en) | A kind of two dimensional code gasket that food safety grade is high | |
| CN202003147U (en) | Holographic multilayered slice | |
| CN212312986U (en) | Recoverable compound film that separates shading | |
| KR101156607B1 (en) | Heat Shrinkable Film and Process of Preparing Same | |
| CN109573296A (en) | The processing method that the recyclable single layer PE high-barrier packaging bag recycled and its bag body use film | |
| JP2009128223A (en) | Gas collection bag | |
| JP7463749B2 (en) | Laminate and standing pouch using same | |
| CN221113122U (en) | Ultralow-temperature sealed type easy-recycling high-barrier packaging film | |
| CN210679939U (en) | Environment-friendly medicine packaging composite film | |
| CN212147845U (en) | Recyclable polypropylene composite film | |
| CN220220018U (en) | Degradable barrier film suitable for liquid packaging | |
| CN219057108U (en) | High-barrier packaging bag made of single material | |
| JP2018024436A (en) | Pouch with spout | |
| CN202063383U (en) | Composite film for flexible package of liquid pesticide | |
| JP3871790B2 (en) | Laminate tube manufacturing method | |
| JPWO2004011252A1 (en) | Laminated packaging materials and packaging bags | |
| CN218084582U (en) | Recyclable high-barrier and breakage-resistant packaging film | |
| CN202481483U (en) | Paper-plastic composite packaging container | |
| CN211917968U (en) | Full-recovery flexible packaging film | |
| CN220742390U (en) | Low-cost multilayer structure composite film | |
| CN212312980U (en) | High barrier nature complex film for pharmaceutical packaging |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |