WO2021137772A1 - Procédé de production d'un matériau d'emballage recyclable à 100 % avec revêtement métallisé - Google Patents
Procédé de production d'un matériau d'emballage recyclable à 100 % avec revêtement métallisé Download PDFInfo
- Publication number
- WO2021137772A1 WO2021137772A1 PCT/TR2019/051260 TR2019051260W WO2021137772A1 WO 2021137772 A1 WO2021137772 A1 WO 2021137772A1 TR 2019051260 W TR2019051260 W TR 2019051260W WO 2021137772 A1 WO2021137772 A1 WO 2021137772A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- metalized
- film
- pet
- coating
- polyethylene terephthalate
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
Definitions
- the present invention relates to a method of producing a 100% recyclable packaging material with metalized coating.
- Package is an indispensable product for extending the shelf life of foods, ensuring storage at appropriate conditions, and protecting foods from other contaminants and preserving their hygiene until they reach consumers.
- a food package must; - keep the products clean and prevent the contamination of foods. minimize nutritional losses.
- - provide protection during transport, distribution and storage of the products.
- - protect the ingredients against physical and chemical hazards. be easy to use.
- - be designed to promote the product in the best attractive way possible.
- Food packages are produced from a wide range of materials. Plastic packages in use; - are lightweight, - have no corrosion issues, - are resistant against bacteria, - have numerous design options.
- Aluminum is also widely used as a packaging material.
- Aluminum imparts superior properties to the package, such as high barrier properties, long shelf life at room temperature, light weight and anti-UV properties.
- metalized film is one of the most preferred materials.
- Metalized films are generally obtained by coating plastic film surfaces with metal (deposition on the plastic surface) on metallizing machines.
- the most preferred method of metallizing is the evaporation of aluminum in a very large vacuum chamber.
- Plastic film is coated with aluminum vapor formed on ceramic rods heated by resistors under low pressure.
- Very thin aluminum layer concentrating on the plastic film imparts the film a barrier function against light, water vapor, oxygen and other gases.
- durability of metalized plastic is improved, yielding a long lasting performance for the packaging material obtained.
- PET polyethylene terephthalate
- PET polyethylene terephthalate
- metalized films One of the most important features of metalized films is the barrier function. This function prevents the contact of the packaged food with oxygen, thereby extending its shelf life. This means that foods can stay longer on shelves and remain healthier with the use of less additives. Moreover, the brightness of metalized films, which are also used instead of aluminum foil, also reveal aesthetic and decorative features of flexible packages.
- the invention generally relates to a method for producing a deposited aluminum packaging film in which a thin aluminum film is partially deposited, and more specifically to a partially deposited packaging film and to the same production method, in which the whole thin aluminum film is printed to various printing layers on one side of the transparent plastic film, then the aluminum deposition layer is formed by eroding the thin aluminum film with an erosive solution, and the portion in which no print layer is formed is made transparent such that the metallic color of the thin metal film is visible on one side of the film and the color of the print ink layer is visible on the other side of the film.
- the present invention relates to a method for producing a partially deposited aluminum packaging film in which a thin aluminum film is partially deposited, and a method for stripping the polyester portion from polyester-metalized films is not mentioned.
- the patent application document no “JP2006009024A” is briefly described as follows: “The present invention relates to a biaxially stretched polyester film, excellent in gas barrier properties such as oxygen gas barrier properties, mechanical properties such as elastic modulus, gloss, printability, metallizing, coating properties, and winding properties. And more specifically, the present invention relates to a biaxially stretched polyester film that is excellent in adhesion when laminated to other polymers, especially polyolefins. The present invention further relates to a method for producing the biaxially stretched polyester film and the use thereof’.
- the present application document describes a method of producing metalized films, however does not mention a method for stripping polyester from any recyclable polymer and the resulting polyester metalized film.
- the present invention relates to a method developed in order to eliminate the aforementioned disadvantages and introduce new advantages in the field.
- the object of the invention is to obtain a barrier film that is resistant against gas, moisture, light and odors.
- Another object of the invention is to ensure that, after lamination or coating of metalized polyester with the paper, cardboard and polymer film group, metalized coating remains on this group, but the bare PET (polyethylene terephthalate) is stripped off. Thus, PET (polyethylene terephthalate) free films with metalized coating are obtained.
- Another object of the invention is to impart a 100% recyclable property to the structure stripped from PET (polyethylene terephthalate) after applying the metalized coating.
- Another object of the invention is to advantageously obtain a thinner metalized surface compared to current treatments.
- Another object of the invention is to advantageously create a package, which is visually attractive to the consumer, thanks to the metalized layer.
- Another object of the invention is to impart a 100% recyclable property by combining the metalized coated structure with another structure of its class.
- Another object of the invention is to advantageously impart a metalized appearance to the materials that are not available for metallizing.
- Fig. 1- Front view of metalized PET (polyethylene terephthalate).
- Fig. 2- The view of metalized PET (polyethylene terephthalate) after lamination or coating.
- PET-MET Metalized (2) PET (2) (polyethylene terephthalate) is commercially procured.
- PET (1) polyethylene terephthalate
- a food-grade lamination adhesive (3) of a weight varying between 3 g and 5 g
- PET (1) polyethylene terephthalate
- the factor that makes it possible to realize stripping is that the adhesion force between the metalized coating (2) and polyester (1) film (bonding between different types of molecules) is less than the adhesion force of the metalized coating (2) between the lamination adhesive (3) and polyethylene (4) layer.
- the PET (polyethylene terephthalate) film (1) described in the invention may not be limited in any manner. In alternative embodiments, it may be applied to all polymer-metalized (2) films. The result will not change.
- the lamination adhesive or copolymer adhesive of the present invention may not be limited in any manner. In alternative embodiments, any of the food-grade lamination adhesives (3) with or without solvent may be preferred.
- the polyethylene layer (4) to be supporting the metalized portion (2) can be selected from any of the polyolefin groups as well as paper, cardboard, polymer, etc. The result will not change.
Landscapes
- Laminated Bodies (AREA)
- Wrappers (AREA)
Abstract
La présente invention concerne un procédé de production d'un matériau d'emballage recyclable à 100 % avec un revêtement métallisé.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/TR2019/051260 WO2021137772A1 (fr) | 2019-12-31 | 2019-12-31 | Procédé de production d'un matériau d'emballage recyclable à 100 % avec revêtement métallisé |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/TR2019/051260 WO2021137772A1 (fr) | 2019-12-31 | 2019-12-31 | Procédé de production d'un matériau d'emballage recyclable à 100 % avec revêtement métallisé |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2021137772A1 true WO2021137772A1 (fr) | 2021-07-08 |
Family
ID=76686723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/TR2019/051260 WO2021137772A1 (fr) | 2019-12-31 | 2019-12-31 | Procédé de production d'un matériau d'emballage recyclable à 100 % avec revêtement métallisé |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2021137772A1 (fr) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070243293A1 (en) * | 2000-11-29 | 2007-10-18 | Annegret Janssen | Food packaging laminates |
| US20170204310A1 (en) * | 2016-01-19 | 2017-07-20 | H.B. Fuller Company | One-part polyurethane adhesive composition, method of making a laminate, and laminate |
| US20180186136A1 (en) * | 2016-12-30 | 2018-07-05 | Toray Plastics (America), Inc. | Easy opening metalized hermetic films and methods to manufacture the same |
-
2019
- 2019-12-31 WO PCT/TR2019/051260 patent/WO2021137772A1/fr active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070243293A1 (en) * | 2000-11-29 | 2007-10-18 | Annegret Janssen | Food packaging laminates |
| US20170204310A1 (en) * | 2016-01-19 | 2017-07-20 | H.B. Fuller Company | One-part polyurethane adhesive composition, method of making a laminate, and laminate |
| US20180186136A1 (en) * | 2016-12-30 | 2018-07-05 | Toray Plastics (America), Inc. | Easy opening metalized hermetic films and methods to manufacture the same |
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