Packaging materials

Abstract

------08 / 08 / 2562------(OCR) Page 1 of 1 page Summary of the invention of a packaging material with antimicrobial and antifungal properties including: a) a polymer core layer containing at least one active antimicrobial and / or antifungal agent dispersed in a polymer matrix; b) a coating applied to the core layer containing a polymer lacquer or paint containing a nanofiller of pillosilicate or hydrotalcite; c) a release coating of the active antimicrobial or antifungal agent consisting of encapsulated ethanol and a polymer component of choice of chitosan grafted with polyethylene glycol or cyclodextrin, a mixture of chitosan and polyethylene glycol and polymer, or a polymer mixture for printable paint applied to the other side of the base layer by choice of further composite material; d) an oxygen-absorbing coating applied to the coating layer c) and / or subsequent coatings e) containing the active agent of type b). ------------ ------08 / 08 / 2562------(OCR) Page 1 of 1 page Summary of the invention of a packaging material with antimicrobial and antifungal properties including: a) a polymer core layer containing at least one active antimicrobial and / or antifungal agent dispersed in a polymer matrix; b) a coating applied to the core layer containing a polymer lacquer or paint containing a nanofiller of pillosilicate or hydrotalcite; c) a release coating of the active antimicrobial or antifungal agent consisting of encapsulated ethanol and a polymer component of choice of chitosan grafted with polyethylene glycol or cyclodextrin, a mixture of chitosan and polyethylene glycol and polymer, or a polymer mixture for printable paint applied to the other side of the base layer by choice of further composite material; d) an oxygen-absorbing coating applied to the coating layer c) and / or subsequent coatings e) containing the active agent of type b). ------------

Claims

------08 / 08 / 2562------(OCR) Page 1 of 3 pages Claims 1. Packaging material which includes: a) a polymer core layer containing at least one antimicrobial and / or antifungal active substance dispersed in a polymer matrix; b) a coating applied to the side of such core layer which is obtained from polymer lacquer or paint including pileosilicate or hydrotalcite fillers; c) a release coating of the antimicrobial or antifungal active substance which includes encapsulated ethanol and a polymer component of choice of chitosan grafted with polyethylene glycol or cyclodextrin, a mixture of chitosan and polyethylene glycol and polymer or a mixture of polymers for printable paint applied to the other side of the core layer; 2. Packaging material according to Claim 1, which is characterized by it also including: d) an oxygen-absorbing coating applied to such coating; c) 3.Packaging materials under claim 1 or, respectively, under claim 2, which consist of a polymer coating containing an active ingredient with antimicrobial and / or antifungal activity, applied to such coating c) or, respectively, to such coating d) 4. Packaging materials under any of claims 1 to 3, in which, in such core layer a), the active ingredient is selected from a group consisting of chitosan, alginic or alginate acid, grapefruit seed extract, lemon peel essential oil or limonene, tea tree oil, cinnamon oil, basil oil, encapsulated ethanol and its mixtures 5. Packaging materials under claim 4, which are characterized by the presence of such active ingredient in such layer in an amount ranging from 1 to 30% by weight on the basis of the weight of the polymer 6. Packaging materials under any of claims 1 to 5, which are characterized by the core layer being a film or sheet of a thickness of between 5 micrometers and 80 micrometers 7.Packaging materials under any of the preceding claims, which are characterized by a core layer such as a) composed of a polymer or a mixture of polymers selected from a group consisting of polyethylene, polypropylene, polyethylene / polypropylene copolymer, polyester, poly(lactic acid), polyhydroxyalkanoate and polycaprolactone, page 2 of 3, page 8. Packaging materials under any of the preceding claims, in which the coating b) obtained from paints or lacquers which contain a selection of polymers from polyethylene terephthalate, polyurethane, polyacrylate, nitrocellulose and vinyl polymers and include montmorillonite or hydrotalcite in an amount of 3 to 30% by weight of reference to the weight of the paint or lacquer.

9. Packaging materials under any of the preceding claims, which are characterized by such coatings b) weighing more than 0.4 g / m2 and less than 3 g / m2. 10.The packaging material under any of the preceding claims, which is characterized by such coatings, c) is obtained by using a hydrogel incorporating chitosan grafted with polyethylene glycol or cyclodextrin in an amount of 40 to 60% by weight, encapsulated ethanol in an amount of 1 to 6% by weight, and an organic solvent or water.

11. The packaging material under claim 10, which is characterized by such organic solvents being selected from acetyl acetate, ethyl acetate and isopropyl alcohol.12 12. Packaging material under any of the preceding claims, which is characterized by such coating c) weighs between 0.5 and 4 g / m².

13. Packaging material under any of the preceding claims, which is characterized by such coating d) is obtained from a polymerized lacquer composed of a polymer of choice of polyurethane, polyacrylate or polyester in water or in a solvent.

14. Packaging material under claim 2, which is characterized by such coating d) weighs between 0.3 and 4 g / m². 15.Packaging material under claim 3, which is characterized by such coating e) is obtained by applying a polymerized lacquer consisting of polyurethane, polyacrylic or polyester polymers in water or in a solvent, an active ingredient selected from a group consisting of chitosan1, alginic or alginate acid, lymeo seed extract, lemon peel essential oil or limonin, tea tree oil, cinnamon oil, basil oil, encapsulated ethanol and its mixtures in an amount of 15 to 60% by weight, referred to by the weight of such polymerized lacquer.

16. Packaging material under claim 15, which is characterized by such coating e) weighs between 0.5 and 4.5 g / m².

17. Use of any of the preceding packaging materials for the packaging of bakery products. Page 3 of 3.

18. Sealed packaging consisting of a wrapper made of any of the packaging materials under claims 1 to 16 and including the bakery product.19.Packaging sealed in accordance with claim 18 in the form of horizontal packaging------------------08 / 08 / 2019------(OCR)Page 1 of 3 pages Claim 1. Packaging material which consists of a) a core layer of polymer material containing at least one active substance with antimicrobial and / or antifungal activity dispersed in a polymer matrix.

2. Packaging materials according to claim 1, which are characterized by the following: d) Coatings of oxygen-absorbing agents applied to such coatings; c) Coatings for the release of antimicrobial or antifungal agents consisting of encapsulated ethanol and a polymeric component of chitosan grafted with polyethylene glycol or cyclodextrin, a mixture of chitosan and polyethylene glycol and polymers, or a mixture of polymers for printable paints applied to the other side of the core layer; 3. Packaging materials according to claim 1, which are characterized by the following: d) Coatings of oxygen-absorbing agents applied to such coatings; c) 3.Packaging materials under claim 1 or, respectively, under claim 2, which consist of a polymer coating containing an active ingredient with antimicrobial and / or antifungal activity, applied to such coating c) or, respectively, to such coating d) 4. Packaging materials under any of claims 1 to 3, in which, in such core layer a), the active ingredient is selected from a group consisting of chitosan, alginic or alginate acid, grapefruit seed extract, lemon peel essential oil or limonene, tea tree oil, cinnamon oil, basil oil, encapsulated ethanol and its mixtures 5. Packaging materials under claim 4, which are characterized by the presence of such active ingredient in such layer in an amount ranging from 1 to 30% by weight on the basis of the weight of the polymer 6. Packaging materials under any of claims 1 to 5, which are characterized by the core layer being a film or sheet of a thickness of between 5 micrometers and 80 micrometers 7.Packaging materials under any of the preceding claims, which are characterized by a core layer such as a) composed of a polymer or a mixture of polymers selected from a group consisting of polyethylene, polypropylene, polyethylene / polypropylene copolymer, polyester, poly(lactic acid), polyhydroxyalkanoate and polycaprolactone, page 2 of 3, page 8. Packaging materials under any of the preceding claims, in which the coating b) obtained from paints or lacquers which contain a selection of polymers from polyethylene terephthalate, polyurethane, polyacrylate, nitrocellulose and vinyl polymers and include montmorillonite or hydrotalcite in an amount of 3 to 30% by weight of reference to the weight of the paint or lacquer.

9. Packaging materials under any of the preceding claims, which are characterized by such coatings b) weighing more than 0.4 g / m2 and less than 3 g / m2. 10.The packaging material under any of the preceding claims, which is characterized by such coatings, c) is obtained by using a hydrogel incorporating chitosan grafted with polyethylene glycol or cyclodextrin in an amount of 40 to 60% by weight, encapsulated ethanol in an amount of 1 to 6% by weight, and an organic solvent or water.

11. The packaging material under claim 10, which is characterized by such organic solvents being selected from acetyl acetate, ethyl acetate and isopropyl alcohol.12 12. Packaging material under any of the preceding claims, which is characterized by such coating c) weighs between 0.5 and 4 g / m².

13. Packaging material under any of the preceding claims, which is characterized by such coating d) is obtained from a polymerized lacquer composed of a polymer of choice of polyurethane, polyacrylate or polyester in water or in a solvent.

14. Packaging material under claim 2, which is characterized by such coating d) weighs between 0.3 and 4 g / m². 15.Packaging material under claim 3, which is characterized by such coating e) is obtained by applying a polymerized lacquer consisting of polyurethane, polyacrylic or polyester polymers in water or in a solvent, an active ingredient selected from a group consisting of chitosan1, alginic or alginate acid, lymeo seed extract, lemon peel essential oil or limonin, tea tree oil, cinnamon oil, basil oil, encapsulated ethanol and its mixtures in an amount of 15 to 60% by weight, referred to by the weight of such polymerized lacquer.

16. Packaging material under claim 15, which is characterized by such coating e) weighs between 0.5 and 4.5 g / m².

17. Use of any of the preceding packaging materials for the packaging of bakery products. Page 3 of 3.

18. Sealed packaging consisting of a wrapper made of any of the packaging materials under claims 1 to 16 and including the bakery product.

19. The packaging is sealed in accordance with claim 18 in the form of horizontal packaging.