TWI769125B - Container for a consumable good, coated with antioxidant-containing layer - Google Patents

Abstract

The present invention relates to a container for a consumable good having an inner coating layer comprising antioxidant, a process for preparing such a container, and the use of said container for the storage of a consumable good, and the use of antioxidant as an additive to coating layers of such containers.

Description

Coating Antioxidant-Containing Layers, Containers for Consumer Goods

The present invention relates to a container comprising an antioxidant-containing coating, in particular towards the interior of the container. The container is in particular filled with consumer goods, in particular food, beverages or other food, personal care or medicinal products. In particular, it has an inner coating containing antioxidants. The present invention further relates to a method of making such a container, the application of using said container to store consumer goods, and the use of an antioxidant added as an additive to a coating of such a container.

For centuries, consumer goods have been stored in a variety of containers, including wood, hides, pottery, and leather.

Over the past decade, alternative packaging forms, such as metal containers, plastic containers such as polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET) or other The popularity of those made of polymers and their blends and of paper or cardboard containers has increased. It offers the advantage of less weight, however its properties are in many cases unsuitable for long-term storage, especially for commodities that are sensitive to oxidation.

This oxidation-sensitive commodity is relevant to all areas of consumer goods (consumables), especially food, such as food and beverages, but also medicinal products or pharmaceuticals, medical and veterinary products and cosmetic and personal care products. In many cases, problems also arise due to the relatively active nature of these commodities or products. These problems arise in both liquid and solid consumer goods. As a result of the interaction of the product with the container or a compound (eg, oxygen) entering the container, the quality of the product is compromised and/or the shelf life and storage stability of the consumer commodity is compromised.

In order to ensure product integrity, longevity and compliance with consumer demand for sustainable packaging and the need to maintain the quality of the product under various global storage and transport conditions, a robust packaging system was developed, especially for delicate products (consumer Sexual Goods) are considered required.

With globalization and the increased demand for consumer goods in the global marketplace, these goods need to be transported globally while maintaining their integrity and stability. Furthermore, due to today's global economic conditions, manufacturers of consumer goods are forced to package their products in several countries around the world. These products become sensitive to a variety of regional conditions during manufacture, including water quality and chemical composition, climatic conditions, etc., all of which have a significant potential impact on product integrity, stability, and longevity.

For example, a product such as wine that interacts easily and constantly with its environment needs to maintain a chemical balance within it so that the integrity of the product can be delivered to the consumer intact as desired by the winemaker. As the global market opens up, winemakers want to be able to ship their products to consumers around the world in the form of the wines they make. In a global market, with changing weather conditions, temperature fluctuations, the quality of the logistics system and the ability to maintain the integrity of the wine until it reaches the consumer, this goal is extremely difficult.

In addition, for a complete wine packaging system and a precisely balanced product that provides global shipping, wine can be shipped from the winemaker to the consumer regardless of the consumer. The need for consumers to maintain their intact balance and appearance and stable inventory life (up to and beyond 12 months) wherever they are located is a long-term business need, but also to reduce their overall carbon footprint to Minimum to be environmentally friendly.

As the demand for wine in the global market increases, the maintenance of wine integrity and safety during global transportation and an additional application for more environmentally stable beverage packaging is required. The need has arisen for the development of an integrated wine and beverage packaging system, the ability to carry a closed loop, fully recyclable product of a diverse product range that is shipped globally through a variety of storage and shipping conditions.

In order to meet the expectations of increasingly environmentally conscious consumers coupled with demands for product integrity, aluminum containers without the risk of contamination from cans are needed to allow consumers to confidently transfer high-value commodities such as wine from other currently available Less environmentally friendly packaging systems are overdue to this environmentally friendly form of packaging.

Consumer assurance relies on factors such as product packaging free of tin odor (can contamination) in aluminum containers, shelf life stability, and product integrity that needs to be maintained through product packaging in aluminum containers.

Traditionally, can makers have used paint to coat the inside of aluminum cans to form a barrier between the product and the can body before being filled. These traditional lacquers are applied to the inside of the beverage can in order to allow the beverage to remain in the aluminum container for a brief period of 3-6 months.

The general methods of construction and application of paint used by beverage can/container manufacturers today do not address wine issues and wine product inventory life stability and product integrity. Many manufacturers of beverage cans or other beverage containers are facing a deterioration in product integrity, some of which include loss of flavor properties, loss of freshness, changes in product taste, aroma and color, and loss of can coating. Failure leads to perforation and deterioration. Finally, internal product breakdown can occur, further jeopardizing the reputation of aluminum containers as a premium beverage container and an environmental alternative.

It is generally accepted in the industry that when wine and wine products are filled into cans/bottles etc. using current common paints, these products are known to suffer damage with concomitant loss of product integrity for a short period of time (6 months). Beverage can manufacturers have internal guidelines that only recommend a stable stock life of 6 months, after which it is guesswork based on individual product evaluations through product time testing.

Manufacturers of aluminum beverage containers have received notable complaints from consumers that canned beverages taste "tinny," "oxidized," or "bland," "tasteless," or "bland." This is because the product itself suffers a loss of integrity through the disintegration of the coating or even the paint to some extent through the interaction between the product and the coating and the aluminium container. This results in products manufactured in aluminium containers being perceived by consumers to be inferior when compared to the same wine packaged in glass, especially for high value products such as wine.

Differences in perceived taste contribute to negative perceptions of the potential of aluminum containers for the delivery of wine and wine-based products with integrity and consistent quality. Because glass is not as recyclable as aluminum, it has the indirect effect of having a greater negative impact on the environment.

In today's competitive marketplace, manufacturers look for ways to reduce costs and remain competitive in the marketplace. Beverage manufacturers are demanding lower-priced packaging options from their suppliers, forcing canners to use a minimum amount of aluminum and paint to provide a competitive product to their customers.

Since the mid-nineties, there has been a marked shift towards the use of thinner gauge aluminium for the manufacture of aluminium cans. Manufacturers of aluminum beverage containers look for ways to reduce the cost of aluminum beverage containers, and one way to achieve this goal is to reduce the aluminum thickness of the aluminum rolls used to make the cans.

The move to thinner aluminum thicknesses reduces the overall cost, while also reducing the amount of metal used and the energy required to make a can. However, these thinner cans present some significant problems with the products they carry, which are of great concern to can and beverage manufacturers and consumers. It is more susceptible to external damage and paint damage during manufacturing, filling, packaging, storage, transportation and the entire supply chain.

The handling of these products may result in damage via dents and, depending on their location on the can, may also cause damage to the interior can paint (splits and breaks), and subsequent exposure of the wine to the aluminum stock may result in product contamination with metamorphism. Such damage has the potential to infect the surrounding product via a leak from the aluminum container, disrupting the entire product shipment and causing significant business losses.

Furthermore, due to today's global economic conditions, beverage manufacturers are forced to package their products in several countries around the world. These products become susceptible to a variety of regional conditions during manufacture, including water quality and chemical composition, climatic conditions, etc., all of which have a significant potential impact on product integrity, stability and longevity.

Basically, the same or similar factors apply to manufacturers of all consumer goods such as beverages, food or cosmetics, health care or beauty products, pharmaceutical products, medicines and the like. It is therefore an object of the present invention to provide a beneficial container, in particular for consumer goods, such as food, beverages or other food, personal care or medicinal products, that avoids the aforementioned problems of the prior art.

Furthermore, another object of the present invention is to provide a method for producing such a container, and the use of such a container.

According to one aspect of the present invention, there is provided a product, in particular for use in consumer goods A container, wherein the inner surface of the container is at least partially coated with a coating comprising an antioxidant.

According to a broad aspect of the present invention, it relates to a container comprising an antioxidant-containing coating, in particular towards the interior of the container. The container should in particular be filled with a consumable commodity, in particular a beverage, food or other food, personal care or medicinal product. Specifically, it has an inner coating layer containing antioxidants.

In one embodiment of the invention, the container does not (yet) contain the consumable commodity, such as, for example, wine or a wine-based beverage. Accordingly, one aspect of the present invention refers to the container prior to being filled with the consumable commodity as produced.

According to one aspect of the invention, consumable goods (or consumables) are those goods that (according to Weber's Dictionary, 1913 edition) can be consumed. Consumed shall mean spent or used in any way, such as for nutrition, for personal care or health or beauty purposes, for medicinal or veterinary purposes, or as food in any other way.

According to one embodiment of the present invention, consumer goods are understood to include, inter alia, food products, such as food, food ingredients, nutritional products, nutritional supplements, beverages, as well as cosmetic products, beauty and health care products, pharmaceutical and veterinary products, Medicines and their analogues. In general, the commodity may contain solid, liquid and/or gaseous components. According to a specific embodiment, a food product is understood as something edible for humans or animals, ie something suitable for consumption. A non-limiting list of preferred foods or food ingredients includes solid foods, liquid or liquefied foods such as both baby foods, (infant) formula and the like, solid foods such as canned foods, pre-cooked foods Meals or meals, such as canned fish, foods in a semi-solid state such as meat in juices or sauces, fruits or vegetables, other food products or condiments, sauces, marinades, spices and the like. A non-limiting list of preferred pharmaceutical or veterinary products is in the form of tablets, capsules, granules, powders, liquids body, other solid or liquid dosage forms and their analogs. A non-limiting list of preferred cosmetic or beauty and health care products includes creams, lotions, soaps, emulsions, dispersions or liquids, and the like.

As used herein, "container" should be broadly understood to encompass all kinds of containers or packaging (for consumer goods) in rigid or elastic form.

In a specific embodiment of the present invention, the consumer product is a non-beverage consumer product.

In one embodiment of the present invention, the consumer commodity is wine or a wine-based beverage.

In one embodiment of the present invention, the consumer commodity is a food, beverage or other food, personal care or pharmaceutical product.

In one embodiment of the invention, the personal care or pharmaceutical product is in the form of a tablet, capsule, granule, powder, liquid, soap, lotion or cream, emulsion, dispersion or solution or the like.

In another preferred embodiment, the inner surface of the container is integrally coated with a coating layer containing an antioxidant.

In yet another preferred embodiment, the coating layer contains an antioxidant at a concentration of at least 0.0001 weight percent, preferably at least 0.001 weight percent, more preferably at least 0.01 weight percent, still more preferably at least 0.1 weight percent, Still more preferably at least 1.0 weight percent.

In yet another preferred embodiment, the coating layer contains an antioxidant at a concentration of at most 30 weight percent, preferably at most 10 weight percent, more preferably at most 1 weight percent, still more preferably at most 0.1 weight percent, Still more preferably at most 0.01 weight percent.

In yet another preferred embodiment, the container is made of glass, metal, polymeric material, paper, cardboard, or a combination thereof, and in a more preferred embodiment, aluminum.

In yet another preferred embodiment, the thickness of the coating layer on the inner surface of the container is in the range of about 3.5 to about 8.4 grams per square meter, in a further preferred embodiment In the range of about 4.0 to about 8.0 grams per square meter, and in a preferred embodiment, in the range of about 5.0 to about 8.0 grams per square meter. In another specific embodiment, the thickness of the coating layer and/or the container wall may be from about 0.1 μm to 10 mm, specifically from about 1 μm to 1 mm.

In another preferred embodiment, the coating layer does not contain epoxy resin, and in a more preferred embodiment, the coating layer does not contain bisphenol A or bisphenol A releasing substances.

In yet another preferred embodiment, the coating layer is a thermosetting coating layer.

In yet another preferred embodiment, at least one additional coating is present in the container, optionally between the antioxidant-containing coating and the container wall made of metal.

According to yet another aspect of the present invention, there is provided a method of making a container for a consumable commodity as defined above, the method comprising the steps of: a) providing a container having a container wall having one side facing the container the inner side of the inner space; b) providing a coating on the inner side of the container wall, the coating containing antioxidants.

According to a specific embodiment, the above-mentioned step b) comprises applying an uncured coating layer comprising an antioxidant to the surface of the container wall material, and curing the uncured coating layer.

In a specific embodiment of the method, the uncured coating comprising the antioxidant The coating is applied to the surface of a container wall material before the container is formed.

In another embodiment of this step, the uncured coating layer comprising the antioxidant is applied to the surface of a container wall material after the container is formed.

In another embodiment, the method comprises the additional step of filling the container with a consumable commodity as defined herein.

In yet another embodiment, the consumer commodity is a food or food, personal care or pharmaceutical product.

According to yet another aspect of the present invention, there is provided a container obtainable by the method of the present invention.

Yet another aspect of the present invention is directed to a container according to any of the preceding aspects or embodiments, further comprising a consumable commodity. In particular, yet another aspect of the present invention is directed to a container according to any of the preceding aspects or embodiments, further containing or filled with consumable goods.

According to yet another aspect of the present invention, there is provided the use of a container according to any of the preceding aspects or embodiments of the present invention for storing consumer goods.

According to yet another aspect of the present invention, there is provided the use of an antioxidant as an additive for a coating on the inner surface of a container of a consumer commodity.

According to a preferred embodiment, wherein the consumer commodity is a food, beverage or other food, personal care or pharmaceutical product.

All specific embodiments and aspects described and/or claimed herein are considered combinable in the present invention unless excluded to the contrary. In particular, specific embodiments of features related to the container or material thereof and the consumer commodity are combinable and disclosed in any combination of any product, method, or application aspect of the present invention.

It has surprisingly been found that a container for consumer goods, wherein the inner surface of the container is at least partially coated with a coating comprising an antioxidant, provides good protection against detrimental and undesired loss of quality , including the undesired consequences of a reaction between the consumer commodity and the packaging material, or between the consumer commodity and a compound entering or present inside the container.

As mentioned above, according to one embodiment of the present invention, consumer goods are understood to include, inter alia, foods, food ingredients, nutritional products, nutritional supplements, beverages, cosmetic products, beauty and health care products, pharmaceutical and veterinary products, Medicines and their analogues. In general, the commodity may contain solid, liquid and/or gaseous components. A non-limiting list of preferred beverages includes wine or wine-based products, soft drinks, juices, milk or whey-based beverages, and the like. A non-limiting list of preferred foods or food ingredients includes solid foods, liquid or liquefied foods such as both baby foods, (infant) formula, etc., solid foods such as canned foods, pre-cooked meals Or meals, such as canned fish, foods in a semi-solid state such as meat in juices or sauces, fruits or vegetables, other food products or condiments, sauces, marinades, spices and the like. A non-limiting list of preferred pharmaceutical or veterinary products are pharmaceutical products in the form of tablets, capsules, granules, powders, liquids, other solid or liquid dosage forms, and the like. A non-limiting list of preferred cosmetic or beauty and health care products includes creams, lotions, soaps, emulsions, dispersions or liquids, and the like. Also included are personal care products or cosmetic products, ie goods used for personal hygiene and for beautification. Personal care products include but are not limited to Use in lip balm, cleansing pads, cologne, deodorant, eyeliner, lip gloss, lip balm, lotion, make-up, hair oil, perfume, talc, shaving cream, skin cream, wet wipes, etc. Also included are drugs and drug-containing compositions (pharmaceutical and veterinary products). A drug is, in the broadest sense, a chemical substance known to have biological effects in humans or other animals.

According to an embodiment of the present invention, the consumer commodity is a beverage, in particular wine or a wine-based beverage. Here, wine is understood to include any beverage obtained from viticulture and winemaking techniques known in the art. In a preferred embodiment, the wine is red wine. In another preferred embodiment, the wine is white wine. In another preferred embodiment, the wine is rosé wine. The wine can be still wine or carbonated, sparkling wine. The wine may also be a fortified wine. Wine-based beverages are understood to include any beverage containing wine as defined above. An example that may be mentioned as a wine-based drink is wine mixed with mineral water or fruit juice.

As used herein, "container" should be broadly understood to encompass all kinds of containers or packaging (for consumer goods) in rigid or elastic form.

As used herein, "antioxidant" should be understood as defined below. "Antioxidant" shall mean one or more antioxidants, ie a single or more than one antioxidant compound may be used.

According to an embodiment of the present invention, the antioxidant is selected from one or more of the group consisting of vitamins, vitamin cofactors, hormones, carotenoid terpenoids, natural or synthetic phenols and polyphenols, Such as flavonoids, phenolic acids and their esters, non-flavonoid phenols or other organic antioxidants, and mixtures of the foregoing.

According to a preferred embodiment of the present invention, the antioxidant is selected from vitamin One or more of the group of vitamins, specifically vitamin A (retinol), beta-carotene, carotenoids, provitamin A, vitamin C (ascorbic acid), vitamin E, including tocotrienols group with tocopherols. According to a preferred embodiment, the antioxidant is or comprises vitamin E.

According to a preferred embodiment of the present invention, the antioxidant is one or more selected from the group of (10) forms of vitamin E. The 10 forms of vitamin E are divided into 2 groups; 5 are tocopherols and the other 5 are tocotrienols. It is identified by the prefixes α-, β-, γ-, δ- and ε-. Natural tocopherols occur only in the RRR-configuration. The synthetic form contains 8 different stereoisomers and is referred to as "all-rac'-alpha-tocopherol".

According to a preferred embodiment of the present invention, the antioxidant is selected from retinol, retinal, retinoic acid and provitamin A carotenoids such as beta-carotene, retinyl palmitate, acetic acid One or more of the group of retinyl esters, retinol, retinal, alpha-carotene, beta-carotene, gamma-carotene, beta-cryptoxanthin, and lutein beta-cryptoxanthin .

According to another preferred embodiment of the present invention, the antioxidant is selected from vitamin cofactors, specifically coenzyme Q10.

According to another preferred embodiment of the present invention, the antioxidant is selected from hormones, specifically melatonin.

According to another preferred embodiment of the present invention, the antioxidant is selected from carotenoid terpenoids, specifically α-carotene, astaxanthin, β-carotene, canthaxanthin, lutein The group consisting of lycopene, lycopene, zeaxanthin or mixtures thereof.

According to another preferred embodiment of the present invention, the antioxidant is selected from polyphenols and phenols, specifically natural phenols and polyphenols found in plants.

According to a preferred embodiment, the antioxidant is or comprises at least one of the stilbene-like group, specifically resveratrol. Stilbenoids are hydroxylated derivatives of stilbene. It has a C6-C2-C6 structure. In biochemical terms, they belong to the phenylpropanoid family. According to another preferred embodiment, the antioxidant is or comprises at least one of the group consisting of picclitaxel, erythromycin, pterostilbene, pictaxel glucoside and resveratrol glycoside.

According to a preferred embodiment, the antioxidant is or comprises at least one of the group of flavonoids, in particular catechins. According to another preferred embodiment, the antioxidant is or comprises (+)-catechin (CAS 154-23-4), (-)-epicatechin (CAS 490-46-0), (+) -Gallocatechin (CAS 970-73-0), (-)-Epigallocatechin (CAS 970-74-1), (-)-Robinol, (+)-Fisher At least one of the group consisting of ketol, (-)-fisetinol, (+)-alf catechin, (+)-epiaf catechin, and (-)-epi af catechin .

According to another preferred embodiment of the present invention, the antioxidant is selected from flavonoids, specifically selected from one or more groups consisting of the following substances: flavonoids, such as apigenin, luteolin , citrin, flavonols such as isorhamnetin, kaempferol, myricetin, proanthocyanidins or thick tannins, quercetin and rutin, flavanones such as eriodictyol, hesperetin, hesperidin, Naringenin, naringin, flavanols and their polymers, such as catechin, gallocatechin and their corresponding gallates, epicatechin, epigallocatechin and Its corresponding gallic acid ester, theaflavin and its gallic acid ester, thearubigin, phytoestrogen isoflavones, such as daidzein, genistein and glycidin, stilbene such as red sandalwood, Anthocyanins such as bluebonnet, delphinidin, delphinidin, pelargonidin, peony anthocyanin, morning glory anthocyanin.

According to another preferred embodiment of the present invention, the antioxidant is selected from one or more phenolic acids and their esters, such as cichoric acid, chlorogenic acid, cinnamic acid and derivatives thereof, such as ferulic acid, The group consisting of ellagic acid, ellagitannin, gallic acid, gallotannin, rosmarinic acid, salicylic acid.

According to another preferred embodiment of the present invention, the antioxidant is selected from other non-flavonoid phenols, such as curcumin, flavonolignans such as silymarin, xanthone such as neem, eugenol, and its mixture.

According to another preferred embodiment of the present invention, the antioxidant is selected from other organic antioxidants, selected from capsaicin, bilirubin, phytic acid, N-acetylcysteine, R-alpha lipoic acid , uric acid and a group of mixtures thereof.

According to a preferred embodiment of the present invention, at least one antioxidant other than resveratrol is used.

According to one aspect, resveratrol should be understood in its broadest form, in particular, it comprises cis-resveratrol as well as trans-resveratrol (cis: 3,5,4' Trihydroxy-cis-stilbene; trans body: 3,5,4' trihydroxy-trans-stilbene).

According to a preferred embodiment of the present invention, the antioxidant is not or does not contain resveratrol.

According to a preferred embodiment of the present invention, the antioxidant used has a fat-soluble-oxidative radical absorption capacity, a water-soluble-oxidative radical absorption capacity or a total-oxidative radical absorption capacity value, which is relative to the trans-oxidative radical absorption capacity. - at least 10% of each value of resveratrol, preferably at least 25%, more preferably at least 50%, more preferably at least 75%, more preferably at least 100%. According to a specific embodiment, the lipid-soluble-oxidative-radical absorption capacity, water-soluble-oxidative-radical-absorption capacity, and total-oxidative-radical-absorption capacity value (using total-oxidative-radical-radical absorption capacity _FN ) values can be determined according to Brunswick Laboratory (Southborough, MA 01772, USA) method to determine. According to a specific embodiment, the oxidation radical absorption capacity detection method according to Y. Sueishi et al, J Clin Biochem Nutr. 2012 Mar; 50(2): 127-32 can be used. Preferably, the antioxidant used has a Trolox equivalent unit of at least 0.1, preferably at least 0.2, preferably at least 0.5, preferably at least 0.75.

Furthermore, containers with coatings containing antioxidants are surprisingly effective at inhibiting or minimizing the deterioration of the quality of the packaged consumer goods, specifically due to oxidation.

The container according to the present invention unexpectedly helps to maintain and even promote the quality and/or longevity of the consumable commodity. Surprisingly, we have found that the use of antioxidants in the containers of the present invention not only provides protection of the consumer product relative to the container material, but it enhances the beneficial effects within the consumer product. Hypothetically, without limitation, a theory that antioxidants are involved in a beneficial interaction between the container (interior surface) and the consumer commodity, and may also neutralize and replace harmful substances that would otherwise be present on the surface of the container wall , such as oxygen, other oxidizing or corrosive substances.

The present invention addresses any potential interaction or reaction with the packaging material or with compounds present in the container, such as air or in particular oxygen, resulting in the degradation or decomposition of the packaging material and/or the packaged commodity, and ultimately the consumption Packaging of spoiled consumer goods for sexual goods is effective.

If the consumer product reacts with the inner coating of the container, the problem of spoilage of the consumer product caused by the packaging material may be caused, and thus it is important to prevent the degradation and decomposition of the packaging material.

The inventors of the present invention have surprisingly found that antioxidants, which are part of the coating of the inner wall of the container, can protect and prevent such degradation and decomposition.

Without being bound by theory, it is assumed in accordance with one embodiment of the present invention that the antioxidant present in the coating of the container may be on the surface of the coating facing and in contact with the consumer good, to and within the coating (which may also act as a reservoir for long-term release of antioxidants) and migrating from the coating into the consumer commodity as an active ingredient in the consumer commodity.

It is observed that, as part of the present invention, antioxidants may have additional desired functions, such as inhibiting undesired reactions or degradation of the consumer product within the container. Thus, for example, the overgrowth of microorganisms can lead to a deterioration of the taste, aroma and integrity of the food product. Furthermore, microbial metabolites can exacerbate the problem of cracking of the packaging material.

By creating a barrier of positive antioxidants, we have surprisingly found that it protects the consumer commodity and increases its stability and longevity.

According to one aspect of the present invention, it is beneficial for antioxidants to be present within the coating of the container prior to adding a consumer product to the container. According to this embodiment, the container of the present invention refers to an empty container prior to being filled with consumer goods. According to one embodiment, the container of the present invention is a virgin container, ie, never used to fill consumer goods. This way provides a protective barrier for the inner wall of the container as stated above, eg from the very beginning, ie when the container is filled, against the highly reactive, corrosive, acidic and oxidizing properties of the consumer commodity components, and provide a protective and favorable surface with the coating. According to one embodiment of the present invention, this initial protection is particularly important to keep the coating intact from the first contact with the consumer product, but also to protect the long-term quality and integrity of the consumer product.

In a preferred embodiment of the present invention, the coating layer contains an antioxidant at a concentration of at least 0.0001 wt %, preferably at least 0.001 wt %, more preferably at least 0.01 wt %, still more preferably at least 0.1 wt % percentage, still more preferably at least 1 weight percent, still more preferably at least 10 weight percent, still more preferably at least 30 weight percent.

In another preferred embodiment of the present invention, the coating layer comprises a concentration of up to Antioxidant at most 70 weight percent, preferably at most 30 weight percent, more preferably at most 10 weight percent, still more preferably at most 1 weight percent, still more preferably at most 0.1 weight percent, still more preferably at most 0.01 weight percent , more preferably at most 0.001 weight percent.

In a particularly preferred embodiment of the present invention, the coating layer according to the present invention comprises an antioxidant in a concentration of from 0.0001 to 10 weight percent, in a more preferred embodiment from 0.1 to 5 weight percent, and It is preferably 0.5 to 1 weight percent, in another more preferred embodiment, from 0.001 to 0.05 weight percent, preferably 0.005 to 0.01 weight percent.

According to an embodiment of the present invention, the above weight percentage range is based on the total weight of the antioxidant-containing coating layer. If more than one coating layer is present in the container, according to an embodiment of the present invention, the above weight percentage ranges are based on the total weight of all coating layers. According to another embodiment of the present invention, the above weight percentage ranges are based on the total weight of the coating layer containing only the antioxidant.

According to one aspect of the invention, the concentration of antioxidants may also vary across the cross-section of the coating. For example, according to one embodiment, the concentration of antioxidants may be higher at or near the surface of the coating facing the consumer article than in portions of the coating that are further from the surface. In this way, according to an embodiment of the present invention, it is possible to enhance the protective effect of the surface of the coating, eg, in an unused container before filling the consumer goods, so that when the consumer goods are filled into the container There is an advantageous protective layer inside. According to another embodiment, an inverse concentration arrangement may also be present to provide a longer term reservoir of antioxidants in the coating.

Containers according to the present invention provide manufacturers and packers of consumer goods with an improved method of packaging their goods.

The antioxidant-containing internal barrier and its application method can be an integral packaging system As part of the system, the system has the capability to be applied to any container during the normal container manufacturing process.

Furthermore, containers according to the present invention can transport end products containing sensitive consumer goods in non-refrigerated shipping containers, thus reducing the carbon footprint.

In a preferred embodiment, the container comprises or is made of metal, a polymeric material such as plastic material, paper, cardboard, glass, or a combination thereof, and in a more preferred embodiment aluminum. The present invention is effective for storage of any of the consumer commodities mentioned herein, including those that are acidic, corrosive, oxidizing, or capable of reacting in any way with packaging materials, and those that are sensitive to environmental factors and those present in Sensitive to the compound in this container. As mentioned above, the term container B as used herein includes any packaging or packaging material for consumer goods in rigid or elastic form. The container may have a suitable form or shape for packaging the individual commodities. The container may be, for example, but not limited to, cans, bags, cans, cans, troughs, bowls, bottles, buckets, or the like. According to a specific embodiment, the container is a package for a drug. According to a specific embodiment, the container can also be in the form of a blister pack and the antioxidant can be present on the metal foil and/or on the plastic film of the blister pack.

In a preferred embodiment of the present invention, the coating layer acts as a two-way barrier. A two-way barrier should be understood in the context of the present invention to not only protect the consumer product from undesired interactions with the packaging material that could lead to deterioration or change in the quality of the consumer product; furthermore, the barrier should also The packaging material is protected from undesired interactions with the consumer commodity that could compromise the container or its integrity.

According to aspects of the present invention, containers, procedures and applications according to the present invention may, among other things, reduce the chance of food poisoning (especially from canned foods) or increase the shelf life (life and stability of the product) of the product. It can also help achieve a variety of consumer products for packaging A variety of suitable shipping conditions for the quality of several global climatic conditions. It may further reduce the need for preservatives, eg salt/sodium based preservatives, or eg sorbic acid as a preservative in canned foods. It can also, for example, prevent detrimental corrosive effects on the container or its lining. In many cases, they may maintain or stabilize the natural flavor or increase the natural flavor of the food product as a consumable commodity. Reduction of free radical formation can be achieved, for example, by reducing/eliminating the formation of unwanted bacteria in food. Therefore, the chance of infection can be reduced. For pharmaceutical products, it can increase its stability and quality.

According to a specific embodiment, in principle, all coating compositions or lacquers known to those of ordinary skill in the art can be used as coating layers in the present invention. Examples of general methods of preparation and application of exemplary coatings are disclosed in European Patent Application Publication No. EP 2457840 A1 "Packaging material 7. Metal packaging for food" (a publication of the ILSI European Special Committee on Packaging Materials. , September 2007, available at https://europa.eu/sinapse/sinapse/index.cfm?fuseaction=lib.attachment&lib_id=C5C03DA0-ED72-0D54-309D55AA14F6C62F&attach=LIB_DOC_EN) or "Preliminary Industry Characterization: Metal Can Manufacturing - Surface Coating" (U.S. Environmental Protection Agency publication, September 1998, available at http://www.epa.gov/ttnatw01/coat/mcan/pic-can.pdf ).

Coating compositions and coatings for metallic and non-metallic surfaces are known to those of ordinary skill in the art. The composition is selected by one of ordinary skill in the art depending on the surface properties and adhesion to the metallic or non-metallic surface, and compatibility with the consumer goods to be packaged. The preferred non-metallic material (surface) to which the antioxidant-containing coating is applied is a polymer or plastic surface. Antioxidants can easily be added before, during and after the coating is formed.

Paints that have previously been used for inner coatings (coatings) of containers such as aluminum cans are mainly Based on compounds containing Bisphenol A (BPA), such as epoxy resins. According to an embodiment of the present invention, the use of bisphenol A or bisphenol A releasing substances in the coating layer of the beverage container is avoided. According to a specific embodiment, the coating should not contain any of the following potentially hazardous substances: formalin, potassium permanganate (KMnO4), dibutyl phthalate (DBP), bisphthalate (2-ethylhexyl) ester (bis(2-ethylhexyl)phthalate, DEHP), diisobutyl phthalate (diisobutyl phthalate, DIBP), dimethyl phthalate (dimethyl phthalate, DMP), ortho Diethyl phthalate (diethyl phthalate, DEP), bis(2-ethylhexyl) adipate (bis(2-ethylhexyl) adipate, DEHA), didecyl phthalate (diisodecyl phthalate, DIDP) , Diisononyl phthalate (diisononyl phthalate, DINP).

In another embodiment, the paint does not contain epoxy resin, and in another embodiment, the coating layer does not contain bisphenol A or bisphenol A releasing substances.

In another preferred embodiment, the coating layer is a thermal curing coating layer.

In another preferred embodiment, the paint according to the present invention complies with all USFDA regulations or other national food safety regulations, specifically, the paint is food grade. Such paints are known to those of ordinary skill in the art and are commercially available. All available paints can be used in the present invention.

The thickness of the coating layer of the container according to the invention should preferably be chosen so that aggressive elements in the consumer goods do not come into contact with the container material, and so that the coating provides adequate protection of the goods to be packaged. According to the present invention, extended inventory life and improved product integrity can be achieved.

In a preferred embodiment, the thickness of the coating layer on the inner surface of the container is in the range of about 3.5 to about 8.4 grams per square meter, in a more preferred embodiment is in the range of about 4.0 to about 8.0 grams per square meter, in a preferred embodiment is in the range of about 5.0 to about 8.0 grams per square meter. In another specific embodiment, the thickness of the coating layer and/or the container wall may be from about 0.1 μm to 10 mm, specifically from about 1 μm to 1 mm.

In a preferred embodiment, the coating layer is uniformly distributed on the entire inner wall of the container, so that the inner wall is integrally coated with the antioxidant-containing coating.

In another preferred embodiment, the antioxidant-containing coating layer is a non-permeable layer, that is, the consumer product cannot penetrate the antioxidant-containing coating layer to prevent the consumer product from interacting with the packaging material .

According to an embodiment of the present invention, the wall of a container for a consumer product may comprise one or more layers of walls. If the wall of the container consists of only one layer, according to an embodiment of the present invention, this layer, ie the wall of the container, may contain antioxidants. In other words, the coating is the wall of the container. One example of such an embodiment of the present invention is a container made from a layer of plastic film that is sealed together to form a kind of bag for consumer goods such as ready-to-use meals. The wall of the container, ie the single-layer plastic film, contains antioxidants and is at the same time the wall of the container.

According to a preferred embodiment of the present invention, the antioxidant-containing layer (eg, the coating layer, or the wall of the container) is a layer that contains or consists essentially or entirely of a polymer. Specifically preferred are polymers having functional groups that can interact with antioxidants, preferably those that interact with OH groups of antioxidants. Non-limiting examples of such polymers are those polymers having functional groups capable of hydrogen bonding with antioxidants. Preferred examples of suitable polymers according to the invention are polymers comprising functional groups with oxygen, nitrogen, sulfur, chlorine or fluorine heteroatoms.

According to a preferred embodiment, included in the layer (such as the coating layer, or the All, substantially all, or at least a portion of the antioxidants of the layer) are not covalently bound to the constituents of the layer, in particular the polymers present in the layer. Non-covalently bound antioxidants can migrate and replenish antioxidants on the inner surface of the container or within the packaged consumer good. In another aspect, at least a portion of the antioxidants are bound to and anchored to the layer's constituents to help maintain the antioxidants in their preferred location under certain circumstances, specifically directly with the packaged commodity. contact position.

In yet another preferred embodiment, the inner wall is partially coated with a coating layer containing antioxidants. For example, the container may be coated with an antioxidant-containing coating only in the areas of the container that are most prone to cracking or failure. Alternatively, the inner wall may be coated with an antioxidant-containing coating in a spot-like manner. These points may provide sufficient antioxidants to achieve the benefits of the present invention. According to this embodiment, areas that are not coated with the antioxidant-containing coating may be coated with a different coating to prevent the consumer product from interacting with the packaging material.

Yet another aspect of the present invention pertains to a method of making a container for a consumer commodity as defined above, the method comprising the steps of: a) providing a container having a container wall having an interior facing the container the inner side of the space; b) providing a coating on the inner side of the container wall, the coating layer containing antioxidants.

As described herein, any container suitable for providing an interior space of a container for packaging consumer goods can be used. The container has a container wall and the container wall has an inner side facing the interior space of the container. Any antioxidant-containing coating layer as described herein or deemed appropriate by one of ordinary skill in the art may be used. According to one aspect, the container may have only one layer as the container wall, so that the coating layer is also the container wall at the same time. In addition, in the container wall Provides additional layers.

According to another aspect, the present invention further provides a method of making a container for a consumer commodity comprising applying an uncured coating comprising an antioxidant to the surface of a container wall material, and curing the uncured coating Steps of coating.

The uncured coating can be applied to the container wall material, such as by a standard spray gun known in the art.

In one embodiment of the present invention, the uncured coating layer comprising an antioxidant is applied to the surface of the container wall material prior to formation of the container. An advantage of this embodiment is that the uncured coating layer comprising antioxidants can be more uniformly applied and distributed over the surface of the container wall material before the material is formed into a hollow container. In another preferred embodiment, the anti-oxidant-containing coating layer can be attached or applied to a surface of the container wall material in the form of a film or foil, preferably before or after the container is formed. Press or otherwise bond to the container wall material. According to one embodiment of the present invention, the anti-oxidant-containing coating is prepared, such as by using a foil, without requiring extensive heating for extended periods of time. In addition, if curing of the layer is performed, other curing methods other than thermal curing may be used or the heating time and temperature will be limited.

In another embodiment of the present invention, the uncured coating layer comprising the antioxidant is applied to the surface of the container wall material after the container is formed. The advantage of this embodiment is that standard containers are available from a large number of manufacturers and then the coating of the invention is provided to obtain a container with the advantages according to the invention. Furthermore, according to another specific embodiment, antioxidants can be added to at least one composition of the coating layer, while other production processes remain unchanged.

In one aspect of the invention, an antioxidant, such as a solvent containing the antioxidant The liquid can be sprayed onto the inner surface of a container comprising a container wall having one or more layers.

In another specific embodiment, after the coating has been applied to the inner wall (or surface) of the container, but before the consumer goods are filled into the container, an antioxidant is added, eg, sprayed on the coating on the surface of the coating. According to a further embodiment, an antioxidant is added to the coating layer, eg, sprayed on, after the coating layer is cured, but before the consumer goods are filled into the container.

In a preferred embodiment of the present invention, the method includes the additional step of filling the container with a consumer product. According to a particular embodiment, it is done after the coating layer comprising the antioxidant has been provided on the inner surface of the container.

In the context of the present invention, it should be understood that the inner surface of the container shall refer to the inner side of the container wall facing the inner face of the container. Thus, the container according to the invention has a container wall, eg made of metal such as aluminium, and this container wall has an outer side facing the outside of the container and an inner side facing the inside of the container. The inside (or surface) of the container, according to an embodiment of the present invention, may therefore be coated with one or more layers, at least one of which contains an antioxidant. In one embodiment of the invention, the inner surface of the container (wall) is provided with only one layer (coating layer). This layer contains an antioxidant according to the invention. In another embodiment of the present invention, more than one layer of the inner surface of the container (wall) is provided. In this case, one or more layers may contain antioxidants.

According to one broad aspect of the invention, the container thus comprises a container wall consisting of one or more layers, at least one of which contains an antioxidant.

According to a specific embodiment, there may be one or more layers that do not contain antioxidants between the antioxidant-containing layer and the vessel wall. Furthermore, according to a specific embodiment, one or more layers that do not contain antioxidants may be present on the (coating) layer containing antioxidants and on the exterior of the container between the departments.

According to another embodiment, one or more non-antioxidant-containing layers may be present between the antioxidant-containing layer and the interior of the container, ie the cavity of the container in which the consumer goods may be filled . According to a further embodiment, the antioxidant-containing layer is the layer directly facing the interior of the container, ie in direct contact with the container cavity or the consumer commodity, respectively, once the container is filled with the consumer commodity.

In one embodiment of the present invention, the antioxidant may be included in any layer located on the inside of the outer aluminum shell (container wall) of a can. In a preferred embodiment, the antioxidant is contained only in one or more layers located on the inside of the outer aluminum shell of the can, either directly or through another antioxidant and/or the consumer product permeable layer Interact with the consumer good. In another preferred embodiment, the antioxidant is contained within a layer capable of interacting with the consumer product.

In another preferred embodiment, the uncured coating layer contains free metal radicals. The addition of free metal radicals to the uncured paint will reduce bake and cure temperatures and cure times, resulting in additional reductions in the energy required to package a consumer commodity into a container according to the present invention.

In a specific embodiment, the uncured coating layer is cured at a temperature of from 180 to 250°C, preferably at a temperature of from 180 to 220°C, for 80 to 230 seconds.

In accordance with the present invention, an antioxidant-containing top coating can be applied to the interior of the container such that the antioxidant-containing layer can be brought into contact with the consumer product.

In yet another preferred embodiment, there is at least one additional coating layer. For example, the bottom layer represents an antioxidant-infused, BPA-free, corrosion-resistant coating that includes a The bulk is a water-based, monomeric enhancer that drives antioxidants to the top coat to contact the consumer commodity.

According to an embodiment of the present invention, it can be ensured that in the final step of preparing the container (ie before filling), the antioxidant is located on the coated inner surface of the container, which is in contact with the consumer goods.

The present invention also provides the use of the container described herein for storing a consumer commodity. In a preferred embodiment, the container is used to store a non-beverage consumer product.

Furthermore, the present invention provides the use of an antioxidant as an additive to a coating, in particular a coating on the inner surface of a container, in particular for a consumer commodity.

As described herein, all specific embodiments of the present invention are considered to be combinable in any form, unless those of ordinary skill in the art consider that such combination has no technical significance, ie, there is a conflict.

Example

Example 1

Preparation of Antioxidant-Containing Paints (Coatings)

Layer containing polyester acrylate without bisphenol A (prepared according to Example 2 of PCT Patent Publication No. WO 2008036629 A2)

A 2 liter flask was equipped with a stirrer, packed column, condenser, thermocouple, heating pack, and nitrogen blanket. The following were added to the flask: 498.6 grams of propylene glycol, 80.1 grams of trimethylolpropane, 880.1 grams of terephthalic acid, 40.0 grams of isophthalic acid, and 2.0 grams of FASCAT 9100 Butyloxystannane Catalyst (purchased from Total Petrochemical USA Company, Houston, USA).

Under a nitrogen blanket, the flask contents were slowly heated to 225°C to 235°C and the moisture from the polycondensation reaction was distilled off. Once the reaction mixture became clear and after the temperature at the top of the column had dropped, the reaction mixture was cooled to 160°C and 85.5 grams of isophthalic acid and 16.0 grams of anhydrous maleic acid were added to the flask . The reaction mixture was slowly reheated to 220°C to 230°C under a nitrogen blanket.

Once the reaction mixture became clear, and after the temperature at the top of the packed column had dropped, the reaction mixture in the flask was cooled to 200°C, the packed column was replaced with a Dean & Stark column for azeotropic distillation, and the 30.0 grams of xylene was added to the flask. The contents of the flask were reheated to reflux temperature under a nitrogen blanket and more water of reaction was distilled off until the acid number of the reaction mixture was below 5. The contents of the flask were cooled to 145°C to 150°C, then 744.6 grams of butyl glycol, 104.7 grams of n-butanol, and 219.6 grams of xylene were added to form a dissolved polyester solution.

A 5 liter flask was equipped with a stirrer, reflux condenser, thermocouple, heating mantle and nitrogen blanket. An example of the dissolved polyester solution as described above (1782.0 grams) and butyl glycol (123.0 grams) were placed in the 5 liter flask and preheated to 120°C under a nitrogen blanket. In another flask, 321.0 grams of ethyl acrylate, 68.3 grams of glacial acrylic acid, 96.1 grams of styrene, and 11.9 grams of VAZO 67 free radical initiator (2,2'-azobis(2-methylbutyl) were premixed in another flask. Nitrile), available from Du Pont de Nemours, Wilmington, Dalava, USA). The monomer and initiator mixture was added to the polyester solution over a period of 135 minutes at a temperature of 120°C to 122°C under a nitrogen blanket. The temperature in the 5 liter flask was then maintained at 122°C for 1 hour.

After this time, 2.6 grams of TRIGONOX C free radical initiator (tert-butyl peroxybenzoate, available from Akzo Nobel) was added to the 5 liter flask and the reactor temperature was maintained at 122°C for 2 hours. The reaction temperature was then cooled to 105°C, and a premix containing 150.3 grams of dimethylethanolamine and 150.3 grams of deionized water was added to the 5 liter flask over a period of 10 minutes, followed by standing for 10 minutes. At the end of the addition, the temperature of the reaction mixture dropped to 90°C. Finally, 2554 grams of water was added to the 5 liter flask over a 30 minute period and the polyester acrylate solution was converted to an aqueous polyester acrylate dispersion.

A 60% VARCUM 2227 phenolic resin solution (211 grams) (Reichhold Corporation, Durham, USA) was incorporated into the converted polyester at a temperature of about 60°C after the final water addition to the polyester acrylate resin step was completed. in acrylic resin. This VARCUM 2227 resin was added after standing for 20 minutes.

The aqueous polyester acrylate phenolic dispersion contained 29.8 weight percent solids (non-volatile matter), based on the total weight of the polyester acrylate phenolic aqueous dispersion, obtained by heating 1 gram of the A sample of an aqueous dispersion of polyester acrylate phenolic was measured for 60 minutes. The aqueous dispersion of polyester acrylate phenolic has a pH of 8.53 standard pH units at a temperature of 20°C.

Under stirring, 70.43 parts of polyester acrylate phenolic resin prepared by the above method was added with 14.40 parts of deionized water and 0.022 parts of CYCAT 600 aromatic sulfonic acid and 10.75 parts of w-butanol (w-butanol) and a premix consisting of 2.57 parts of CYMEL 303 hexamethoxymethyl melamine. The resulting composition was added with stirring to 0.17 parts of carnauba wax emulsion and 0.65 parts of BACOTE 20 AZC (MEL Chemicals, Manchester, UK; diluted to 10% in water). The resulting product is suitable for spraying on the interior of beverage cans and crosslinking at high temperature.

However, in the following examples, Valspar 40Q60AA (available from The Valspar Corporation, Minneapolis, USA) was used as the bisphenol A-free polyester acrylate layer ( liner A ). To illustrate the utility of the present invention, the bisphenol A-free polyester acrylate layer was prepared without adding antioxidants, or directly adding 0.001 wt%, 0.01 wt%, and 0.1 wt% antioxidants (catechin or Vitamin E) to the spray-ready solution.

Contains epoxy-acrylate layer (prepared according to Example 18 of PCT Patent Publication No. WO 2008036629 A2)

A 5 liter flask was equipped with a stirrer, reflux condenser, thermocouple, heating mantle and nitrogen blanket. A low molecular weight liquid epoxy resin with bisphenol A and a butyltriphenylphosphonium bromide catalyst and xylene were added to the reactor. Nitrogen charging and heating are performed initially, followed by an exothermic reaction that increases the temperature in the reactor.

A target weight of about 2900-3100 per epoxy value is achieved in a typical 6 hour reaction time. The butyl glycol, n-butanol, and amyl alcohol solvents were then slowly added over a 90 minute period. The acrylic monomers styrene and methacrylic acid plus the benzyl peroxide initiator LUCIDOL 78 (available from Akzo Nobel, Amsterdam, The Netherlands) were then added to the monomer addition tank. After stirring, the acid value of this monomer/catalyst premix was checked. The monomer/catalyst is then slowly added to the hot epoxy solution and acrylic acid polymerization proceeds. The epoxy acrylic solution was then cooled and removed from the reactor into a thin tank containing a solution of water and diaminoethanolamine. Through conversion, the epoxy resin acrylic solution is inverted in water to form a dispersion.

76.02 parts of the epoxy resin acrylic resin dispersion prepared by the above method was added under stirring, 18.82 parts of deionized water, 3.68 parts of tert-butanol (w-butanol), and 0.25 parts of deionized water were added. A premix of 1.23 parts of dimethylaminoethanol and 1.23 parts of deionized water. The resulting product is suitable for spraying on the interior of beverage cans and crosslinking at high temperature.

However, in the following examples, Aqualure 900 (available from Akzo Nobel, Amsterdam, The Netherlands) was used as the epoxy-acrylate containing layer ( liner B ). To illustrate the utility of the present invention, the epoxy-acrylate-containing layer was prepared without adding antioxidants, or directly adding 0.001 wt%, 0.01 wt%, and 0.1 wt% antioxidants (catechin or vitamin E) to The solution is suitable for spraying.

Example 2

Antioxidant-containing coating applied to packaging material/container walls (before/after the container is formed)

The paint as described in Example 1 was applied to the aluminum can as a coating by using a double-ended spray gun to coat the inner wall and dome of a can. The amount of paint used for coating depends on the size of the can being coated. In this example, cans having a volume of 150 to 440 milliliters were coated with 100 to 240 milligrams containing 0.1 weight percent of one of the following antioxidants: catechin, vitamin E, liner A or liner B.

The uncured coating is cured at a bake temperature between 180 and 250°C for 80 to 230 seconds. The resulting layer has a distribution thickness ranging from 3.5 to 8.4 grams per square meter (gsm). Table 1 shows the thickness of the film layers for the top, middle, bottom and dome portions of a can coated with Liner A containing 0.1 weight percent antioxidant.

Example 3

Evaluation of Physical Parameters of Coated Tanks

The cans obtained in Example 2 were tested for tightness of the coating (AS 1580 method 408.4), impact resistance at 18 joules (AS 1580 method 406.1), puncture after 5 minutes immersion in hydrochloric acid (SSL test method) ). The cans were further examined microscopically for blistering (AS 1580 method 481.1.9), delamination (AS 1580 method 481.1.10) and corrosion (AS 1580 method 481.3). The can performed well in all tests and maintained the integrity of the coating. The results of these tests are shown in Table 2.

Example 4

Sensory evaluation of packaged red wine

The red wine was packaged in 250 ml ultra-thin cans obtained from Example 2 (antioxidant: vitamin E) and then stored for 24 months. Sensory evaluations were performed at the beginning of the test, after 3 months, after 6 months, after 12 months, and after 24 months. The results of this example are shown in Table 3.

Example 5

Sensory evaluation of packaged carbonated white wines

Carbonated white wine was packaged in 250 ml ultra-thin cans obtained from Example 2 (antioxidant: vitamin E) and then stored for 24 months. Sensory evaluations were performed at the beginning of the test, after 3 months, after 6 months, after 12 months, and after 24 months. The results of this example are shown in Table 4.

Example 6

Comparative test of cans coated with commercial paint and cans obtained according to the invention

Cans obtained from Example 2 (antioxidant: catechins) were tested against cans lined with commercial paint. Standard cans with comparison paint were purchased from the market (Comparative Cans 1 and 2, respectively). All containers are filled with wine and stored for 24 months. Sensory evaluations were performed by 16 consumers at the beginning of the test, after 6 months, 12 months, 18 months, and 24 months. The results of this example are shown in Table 5 (red wine).

Example 7

Quality assessment of packaged vegetables and beef stew

Fresh vegetables or beef stew were packaged in cans obtained from Example 2 (coating weight 6 grams per square meter; liner containing 0.1 wt% antioxidant catechin) and then stored for 24 months. Sensory evaluations were performed at the beginning of the test, after 3 months, after 6 months, after 12 months, and after 24 months. The average storage time of canned goods stored in the containers of the present invention can be significantly extended without appreciable deterioration in smell, taste, texture and appearance. The results are shown in Table 6 below.

Example 8

Quality Assessment of Body Lotion

Similar to Example 7, a commercially available body lotion (o/w dosage form; oil-in-water emulsion) was packaged in the can obtained from Example 2 (coating weight 10 grams per square meter; liner containing 0.1 weight percent Vitamin E (tocopherols and tocotrienols)) and then stored at a high temperature of 36°C. The average storage time of canned goods stored in the containers of the present invention can be significantly extended without significant deterioration in odor, viscosity, texture, and appearance. The results are shown in Table 7 below.

Claims (32)

A container for containing consumer goods, wherein the container has a container wall having an inner surface at least partially coated with a coating comprising an antioxidant, wherein the antioxidant is selected from the group consisting of: One or more of the group consisting of: vitamins, vitamin cofactors, hormones, carotenoids, carotenoid terpenoids, natural or synthetic phenols and polyphenols other than resveratrol, including flavonoids, phenolic acids and Esters and non-flavonoid phenols thereof, or any combination thereof, and the health of the consumer commodity in the form of a food, beverage, tablet, capsule, powder, granule, liquid, lotion, cream, cream, ointment, or solution Nursing, personal care or pharmaceutical or medicinal products, and in which the antioxidants vary in concentration through the cross-section of the coating. The container of claim 1, wherein the concentration of antioxidants at or near the surface of the coating facing the consumer commodity is higher than that of the coating further from the surface of the coating facing the consumer commodity part. The container of claim 1, wherein the concentration of antioxidant at or near the surface of the coating facing the consumer commodity is less than that of the coating further from the surface of the coating facing the consumer commodity part. The container of claim 1, wherein the antioxidant is a vitamin. The container of claim 1, wherein the antioxidant is a vitamin cofactor. The container of claim 1, wherein the antioxidant is a hormone. The container of claim 1, wherein the antioxidant is a carotenoid. The container of claim 1, wherein the antioxidant is a carotenoid terpenoid. The container of claim 1, wherein the antioxidant is a natural or synthetic phenol. The container of claim 1, wherein the antioxidant is a polyphenol other than resveratrol. The container of claim 1, wherein the antioxidant is a flavonoid. The container of claim 1, wherein the antioxidants are phenolic acids and esters thereof. The container of claim 1, wherein the antioxidant is a non-flavonoid phenol. The container of claim 1, further comprising a consumable commodity. The container of claim 14, wherein the consumer commodity is a beverage, food, cosmetic, health care or beauty product, medicinal product or drug. The container of claim 15, wherein the medicinal product is in the form of a tablet, capsule, granule, powder, liquid, soap, lotion or cream, emulsion, ointment, dispersion or solution. The container of any one of claims 1 to 16, wherein the coating layer comprises the antioxidant in a concentration of at least 0.0001 weight percent. The container of any one of claims 1 to 16, wherein the coating layer comprises the antioxidant in a concentration of up to 30 weight percent. The container of claim 17, wherein the coating layer comprises the antioxidant in a concentration of up to 10 weight percent. The container of any one of claims 1 to 16, wherein the container is made of glass, metal, polymeric material, paper, cardboard, or a combination thereof. The container of any one of claims 1 to 16, wherein the container is made of aluminum. The container of any one of claims 1 to 16, wherein the thickness of the coating layer on the inner surface of the container wall is in the range of about 3.5 to about 8.4 grams per square meter. The container of any one of claims 1 to 16, further comprising an additional coating layer between the coating layer comprising the antioxidant and the container wall. A method of making a container as claimed in any one of claims 1 to 23, the method comprising the steps of: a) providing a container with a container wall having an inner side facing the interior space of the container; and b ) provides a coating layer on the inner side of the container wall, the coating layer comprising the antioxidant, and wherein the concentration of the antioxidant varies across the cross-section of the coating layer. The method of claim 24, wherein step b) comprises applying an uncured coating comprising the antioxidant to the inside of the container wall, and curing the uncured coating. The method of claim 24 or 25, wherein the uncured coating comprising the antioxidant is applied to the surface of the material used to form the container wall before or after the container is formed. The method of claim 24 or 25, wherein the method comprises the further step of filling the container with the consumable commodity. A container obtained by the method of any one of claims 24 to 27. The container of any one of claims 1 to 13 and 15 to 16, further comprising the consumable commodity. A use of a container as claimed in any one of claims 1 to 23, 28 and 29 for storing the consumer commodity. The use of claim 30, wherein the consumer commodity is a beverage, wine, food, canned food, cosmetic, health care or beauty product, medicinal product, drug or body lotion. A use of a coating layer comprising an antioxidant for coating the inner surface of a container for containing consumer goods, wherein the antioxidant is selected from one or more of the group consisting of vitamins, vitamin cofactors , hormones, carotenoids, carotenoid terpenoids, natural or synthetic phenols and polyphenols other than resveratrol, including flavonoids, phenolic acids and their esters and non-flavonoid phenols, or any combination thereof, and the consumer commodity is a food, beverage, or health care, personal care, drug or medicinal product in the form of a tablet, capsule, powder, granule, liquid, emulsion, cream, cream, ointment or solution, and wherein the The concentration of the oxidant varies across the cross-section of the coating.