Method of packaging food

Patent metadata

Field	Value
Publication number	US-2016353732-A1
Application number	US-201615243648-A
Country	US
Kind code	A1
Filing date	Aug 22, 2016
Priority date	Apr 2, 2012
Publication date	Dec 8, 2016
Grant date	—

Abstract

The invention proposes a container further extending the shelf life of foods, particularly berries, by including an active agent having antifungal capability into the container surface so that when the fruit is packaged inside the container it is permanently exerted an antifungal effect over the surface, which is the place on the longer determinants occurs, but also contributing to preserve the general environment. Also it proposes a preparation process and its use.

First claim

1 . A process for making a package of polyethylene terephthalate (PET) with an antifungal agent incorporated into its surface, the method comprising:
a) adding to a solution of silicone in water, the antifungal agent in an amount less than or equal to 20% w/v, and thereby forming a homogeneous solution as bath; and b) immersing in said bath, previously extruded PET sheets and subsequently performing the steps of thermoforming and final production of the packaging.

2 . The process of claim 1 , wherein less than 15% w/v of the antifungal agent is added in the silicone solution in water.

3 . The process of claim 2 , wherein less than 10% w/v of the antifungal agent is added in the silicone solution in water.

4 . The process of claim 1 , wherein the PET foil previously extruded, are immersed in a bath of silicone in water containing 18-20% w/v antifungal.

5 . The process of claim 1 , wherein the antifungal is an antifungal against Botrytis cinerea.

6 . The process of claim 1 , wherein the antifungal agent is potassium sorhate.

7 . The process of claim 1 , wherein the extruded PET sheets are sheets of recycled PET (RPET).

Assignees

• Univ Santiago Chile

Inventors

• Junqueira Conceicao Gonsalves Maria Paula
• Tapia Ulloa Andrea Marcarena

Classifications

• B29C48/08

  flexible, e.g. films · CPC title

• B65D85/34

  for fruit, e.g. apples, oranges or tomatoes · CPC title

• B29K2105/26

  Scrap {or recycled material} · CPC title

• B65B55/00

  Preserving, protecting or purifying packages or package contents in association with packaging (by packaging under special atmospheric or gaseous conditions B65B31/00; devices for placing protecting sheets, plugs, or wads over contents B65B61/22) · CPC title

• A01N25/34

  Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group · CPC title