JPS61168A - Resin film for packaging - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of the Invention) The present invention relates to a packaging resin film that allows perishable foods such as fruits and vegetables to be preserved for a long period of time without losing their freshness.

(Prior art and its problems) Even in ordinary households, perishable foods such as those mentioned above have been wrapped and preserved in resin films (for example, Saran Wrap or Kuratubu), but this is simply a method of blocking outside air. It had only one function, and it was inevitable that the freshness of the contents would deteriorate over time.

By the way, research on biological systems has been promoted in recent years, and various experimental results have revealed that information on traits that respond to light or temperature conditions in the presence of a certain type of (iron compound) accumulated in seeds that receive iron salts. Gradually, the path of the biological system is becoming clearer, in which the direction of growth is determined after germination by being memorized in the biological genes, and continues through generations.

It has also been clarified that the above-mentioned "iron compound" is a divalent and trivalent iron salt. In recent years, it has been experimentally revealed that it has the ability to accurately prevent infection with TMV, a type of plant virus.

(Structure of the Invention) This invention was developed based on the above-mentioned technological trends, and this invention involves coating a resin film such as polyvinyl chloride with a solution containing divalent and trivalent iron salts, A packaging resin film characterized by adsorption.

(Explanation of Examples) Examples of the present invention will be described in detail below.

The resin film used in the present invention is PVC
<Polyvinyl chloride), PE (polyethylene), PP
(Polypropylene), etc., but the type is not particularly limited as long as it is a wrappable resin film.

The divalent and trivalent iron salt used in the present invention was experimentally determined to be 100%
After adding 1 unit of phytosin to distilled water of tal+ and dispersing it, 201 g of ferric chloride @FeC13.6H
Add and dissolve, remove lipid components using a separating funnel,
Further filter through N015Ci11 paper - the filtrate is wa
It is evaporated and concentrated on a ter bath.

The above phytosin refers to the ether-soluble neutral fraction of a cold methanol extract of freeze-dried daikon radish seeds, etc.
Chromatography was developed with % isopropanol and Rf O,7
It refers to the two parts that gather between 5 and 0.90. Further, the stock solution of the above-mentioned "divalent and trivalent iron salt" is colorless, transparent, and odorless, and the above-mentioned "divalent and trivalent" is currently being commercialized industrially and is easily available.

In the present invention, the "divalent and trivalent iron salt" obtained as described above is coated and adsorbed onto the resin film as described above, but depending on the type of resin, the coating may be difficult.

Surfactants may also be used for adsorption.

As described above, the present invention involves applying and adsorbing a solution based on divalent and trivalent iron salts onto a resin film.

When fresh foods such as fruit or meat are packaged and stored in the refrigerator, their freshness does not deteriorate at all even after more than 3 months have passed.
Of course, the flavor didn't change at all.

Although the resin film according to the present invention has the above-mentioned excellent effects, although the causal relationship is not yet academically clear, the reaction system in which biological tissue is obtained from divalent and trivalent iron salts It is inferred that this is because it maintains the functions of biological systems.

In addition, when the resin film according to the present invention was applied directly to the burn area of a burn patient without applying an equivalent drug, the burn healed within a few days.

Example A 95% aqueous solution containing 5% surfactant (trade name: Boughton) and 1% divalent and trivalent iron salt is placed in a stock solution tank.

On the other hand, a polyvinyl chloride film is wound around the supply roll, and the film is immersed in the solution in the stock solution tank. Then, while driving the drive roller, the solution in the stock solution tank is applied to the film via the guide roller.

At the same time, the resin film according to the present invention is obtained by adsorbing the film, passing it through a drying device equipped with a heater to dry it, winding it up on a winding roller, and cutting it into an appropriate length.

(Effect of the invention) When whole fresh foods such as vegetables were packaged using the resin film obtained as described above and stored in a refrigerator, the melons did not disappear at all even after more than 3 months had passed. There was no difference in flavor at all.

By the way, when packaging with conventional resin film, 2
．． The freshness decreased after about 3 days, proving the superiority of the resin film according to the present invention.

Claims (1)

[Claims] (1) A resin film for packaging, characterized in that a solution containing divalent and trivalent iron salts is applied and adsorbed onto a resin film such as polyvinyl chloride.