TWI790805B - A fresh-keeping coating composition applied to fresh-keeping container and application method - Google Patents

Abstract

The Invention relates to a fresh-keeping coating material coated on the inside of fresh-keeping containers for transporting or storing fruits and vegetables. The Fresh-keeping coating material is preferably a combination of zeolite powder, silicon dioxide powder and nano silver powder mixed with formability adhesive-bonded into the composition. The composition is a kind of sizing material, which can be coated on the inside of the fresh- keeping containers, and has the function of sterilization, freshness preservation and ventilation.

The Invention relates to a method for loading fresh-keeping coating material on the fresh-keeping container. The composition is machine-loaded on the inside of the container body of fresh-keeping container, and the loading method is applying in a square pattern, using a grid-shaped mold with concave and convex surfaces. The convex surfaces will be loaded the fresh-keeping coating material, and the concave surfaces will not. Because of using a grid-shaped mold, no special procedure is required and has the function of preservation and breathability.

Description

A fresh-keeping coating composition and application method for coating on fresh-keeping containers

The invention belongs to the technical field of fresh-keeping storage and transportation packaging of fruits and vegetables, and relates to a fresh-keeping paint on the inner side of a gas-permeable container for fresh-keeping of fruits and vegetables and a method for feeding the fresh-keeping paint.

In the production and sales chain of packaging, storage, transportation, and sales of fruits and vegetables, packaging is the most important link, which directly affects the quality, edibleness, commodity, storage period and shelf life of the product.

Since the harvested fruits and vegetables still absorb oxygen and emit carbon dioxide and ethylene gas, the ethylene gas will further self-ripen the fruits and vegetables. Therefore, absorbing ethylene gas to break the self-ripening mechanism of the fruit body can prolong the freshness period of fruits and vegetables. The currently used ethylene gas adsorption technology includes physical adsorption and chemical reaction. Physical adsorption mainly uses porous inorganic substances such as titanium dioxide, calcium carbonate, silicon dioxide and activated carbon; chemical reaction mainly uses bromine water and potassium permanganate. and catalytic reaction. Among them, either one or both of physical and chemical reactions can be used.

There are many known packaging and fresh-keeping technologies. For example, plastic film fresh-keeping bags, one of the major disadvantages, are easy to cause damage during transportation; low-temperature fresh-keeping and refrigerated storage methods consume energy and cost a lot; The normal temperature preservation effect of sexual containers is not good.

The present invention relates to a fresh-keeping coating applied to fresh-keeping containers for transporting or storing fruits and vegetables. The fresh-keeping coating is preferably a combination of zeolite powder, silicon dioxide powder and nano-silver powder mixed with a plastic binder. The composition is a rubber material which can be coated on the inner side of a fresh-keeping container, and has the functions of sterilization, fresh-keeping and ventilation. Wherein, the fresh-keeping container is an air-permeable container.

The principle of the fresh-keeping paint coated on the inside of the fresh-keeping container for transporting or storing fruits and vegetables of the present invention is to use the zeolite powder and silicon dioxide in the ingredients of the fresh-keeping paint to absorb water, and the fresh-keeping paint adopts a mesh coating method, which can breathe , to discharge ethylene gas out of the gas permeable container. Wherein, the fresh-keeping container is an air-permeable container.

The principle of the fresh-keeping coating applied to fresh-keeping containers for transporting or storing fruits and vegetables of the present invention is to use the excellent antibacterial and bactericidal effects of nano-silver in the fresh-keeping coating components to achieve fresh-keeping effects.

The present invention relates to a method for feeding a fresh-keeping coating on the inside of a fresh-keeping container for transporting or storing fruits and vegetables. The composition is applied to an air-permeable fresh-keeping container material, such as the inside of corrugated paper, and the above content is not limited here. The feeding method is smeared in a grid pattern, using a grid-like mold with a concave-convex surface, the convex part is fed and the concave part is not covered, and no special feeding procedure is required. Because it is applied in a grid pattern and mesh, it has the functions of freshness preservation and ventilation.

In order to make any person familiar with the relevant art understand the technical content of the present invention and implement it accordingly, and according to the content disclosed in this specification, the scope of the patent application and the drawings, any person familiar with the relevant art can easily understand the purpose and advantages of the present invention , so the detailed features and advantages of the present invention will be described in detail in the embodiments.

10: Fresh container

11: container body

12: inside

13: Preservative paint

21: Zeolite powder, silicon dioxide powder, nano-silver powder mixed

22: Add pure water (distilled water) to stir

23:48 hours electrolysis

24: Drying procedure becomes electrolytic powder

25: Mix plastic adhesive and stir well

26: Mesh smearing, feeding on convex parts, not on concave parts

27: Coated on the inside of the air-permeable container

Fig. 1 is a schematic diagram of a fresh-keeping container according to an embodiment of the present invention.

Fig. 2 is a finished picture of a fresh-keeping coating composition coated on a fresh-keeping container according to an embodiment of the present invention and coated on the inside of a gas-permeable container.

Fig. 3 is a flow chart of a method for applying a fresh-keeping coating composition to a fresh-keeping container according to the present invention.

As shown in FIG. 1 , the present invention relates to a fresh-keeping coating 13 applied to a fresh-keeping container 10 for transporting or storing fruits and vegetables. 12, the fresh-keeping coating 13 is preferably a composition 22 formed by mixing zeolite powder, silicon dioxide powder and nano-silver powder 21, and adding a plastic binder. The composition is a glue that can be evenly coated on the inner side 12 of the container body 11, and has functions of sterilization, preservation and ventilation. Wherein, the fresh-keeping container 10 is an air-permeable container.

A fresh-keeping coating 13 of the present invention is applied to a fresh-keeping container 10 for transporting or storing fruits and vegetables. It contains 1 unit of electrolytic powder composition and 10 units of plastic binder, wherein the electrolytic powder composition is composed of 5-15 weight percent silicon dioxide powder, 20-40 weight percent zeolite powder, 20-30 weight percent It is made of nano-silver powder and 30~40% by weight pure water through electrolysis and drying procedures.

One embodiment of the present invention, for example: the fresh-keeping coating 13 of the present invention is a rubber compound, which is formed by mixing three kinds of raw materials such as silicon dioxide powder, zeolite powder and nano-silver powder and adding a plastic binder.

Since the harvested fruits and vegetables still absorb oxygen and emit carbon dioxide and ethylene gas, the ethylene gas will further self-ripen the fruits and vegetables. Therefore, absorbing ethylene gas to break the self-ripening mechanism of the fruit body can prolong the freshness period of fruits and vegetables. The principle of the present invention is to use zeolite powder and silicon dioxide to absorb water, and then discharge ethylene gas out of the air-permeable container. And use the excellent antibacterial and bactericidal effects of nano silver to achieve the effect of freshness.

Mix 0.5Kg~1Kg of silicon dioxide powder, 1.5Kg~3Kg of zeolite powder and 2Kg~3Kg of nano silver powder with a nano silver concentration of 30~40% 21, add 2Kg~3Kg of pure water (distilled water) and stir 22. After 48 hours of electrolysis, positive and negative ions are exchanged 23, and become electrolytic powder 24 after drying.

Then the electrolytic powder is further mixed with a plastic binder and stirred evenly for 25 minutes. At this time, the ratio of the electrolytic powder and plastic binder is about 1:10. After mixing, it becomes the fresh-keeping coating 13 of the present invention. The fresh-keeping coating 13 of the present invention is a kind of sizing material, and the fresh-keeping coating 13 of the present invention can be coated with a net shape through a kind of feeding method of the fresh-keeping coating 13 coated on the inner side 12 of the fresh-keeping container 10 for transporting or storing fruits and vegetables of the present invention ( As shown in Figure 2) evenly coated on the inner side 12 of the container body 11, the ethylene gas can be ventilated and easily dispersed outside the air-permeable container body 11, and the fresh-keeping coating 13 composition coated on the inner side 12 of the container body 11 is also With nano-silver, it achieves the antibacterial and fresh-keeping effect of vegetables and fruits. In one embodiment, the fresh-keeping paint 13 is only partially coated on the inner side 12 . In another embodiment, the fresh-keeping paint 13 is completely coated on the inner side 12 .

As shown in Figure 3, a fresh-keeping paint feeding method applied on the inside of fresh-keeping containers for transporting or storing fruits and vegetables according to the present invention is characterized in that: the feeding method is applied in a grid shape, and the above-mentioned fresh-keeping paint The composition is applied to the inner side of the container body of the air-permeable fresh-keeping container. The square format Smearing is also known as mesh smearing. The so-called net-like smearing means using a grid-shaped mold with a concave-convex surface to feed materials on the convex parts but not on the concave parts 26, and apply the fresh-keeping coating composition to the inner side of the container body of the air-permeable fresh-keeping container 27 . Because it looks like a net, as shown in Figure 2, it is a photo of the finished product that has been coated on the inside 12 of the container body 11 of the fresh-keeping container 10, so it is called "net-shaped coating".

In the production and sales chain of packaging, storage, transportation, and sales of fruits and vegetables, packaging is the most important link, which directly affects the quality, edibleness, commodity, storage period and shelf life of the product. Compared with the traditional fresh-keeping storage method at room temperature under non-refrigerated conditions, the present invention can effectively improve the fresh-keeping quality of fruits and vegetables, prolong the shelf life of fruits and vegetables after transportation, and the fruits and vegetables are free from damage, pollution and poison, and meet food hygiene requirements. The invention has the remarkable advantages of convenient storage, low cost, high benefit, energy saving, etc., and preferably solves the problems in the production and sales chain of vegetables and fruits such as packaging, storage, transportation, and sales.

However, the above-mentioned embodiments are used to illustrate the characteristics of the present invention, and its purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, rather than to limit the patent scope of the present invention, so all others do not depart from the disclosure of the present invention. Equivalent modifications or modifications completed in accordance with the spirit of the invention should still be included in the scope of the patent application described below.

Claims (7)

A fresh-keeping coating applied to fresh-keeping containers for transporting or storing fruits and vegetables, comprising: 1 unit of electrolytic powder composition, which is composed of 5-15% by weight of silicon dioxide powder, 20-40% by weight of zeolite powder, 20- 30% by weight of nano-silver powder, 30-40% by weight of pure water through electrolysis and drying procedures, and 10 units of plastic binder. For the fresh-keeping coating in item 1 of the patent scope, the plastic adhesive is a hot-melt adhesive. Such as the fresh-keeping coating of item 1 of the patent scope, the composition is a rubber material that can be evenly coated on the inner side of a container body of the fresh-keeping container, and has a bactericidal function. Such as the fresh-keeping coating of item 1 of the scope of application, the composition is a rubber material that can be evenly coated on the inner side of a container body of the fresh-keeping container, and has a fresh-keeping function. Such as the fresh-keeping coating of item 1 of the patent scope, the composition is a rubber material and can be evenly coated on the inner side of a container body of the fresh-keeping container, and has a breathable function. A fresh-keeping coating coating method applied to fresh-keeping containers for transporting or storing fruits and vegetables, the technical feature of which is: the method is to apply the fresh-keeping coating composition as described in item 1 of the scope of the patent application on the The storage capacity The inner side of a container body of the device. For example, the feeding method of item 6 of the patent scope, the technical feature of the square-shaped smearing is: use a grid-like mold with a concave-convex surface, and feed on the convex part but not on the concave part. The fresh-keeping coating composition of item 1 of the patent scope is coated on the inner side of the container body of the fresh-keeping container.

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