TWI546021B - Over mature postponing material for fruit and vegetable and producing method thereof - Google Patents

Description

Method for manufacturing plant delayed mature aging material

The present invention relates to a plant delaying mature aging material, and more particularly to a plant delaying mature aging material having ethylene adsorption characteristics.

Plants have a considerable impact on human health. Eating more fruits and vegetables is not good for human health, so it has long been a manifestation of modern human diet.

Although there are refrigerators and other equipment that are very helpful in delaying the maturity and decay of fruits and vegetables, there is still no perfect solution for the display and sales of fruits and vegetables in the market and the transportation process. At present, there are a number of multi-layer packaging materials, which can provide a certain effect of fruit and vegetable delaying spoilage, but the cost of the existing packaging materials is high, the multi-layer process is complex, the effect of delaying the mature decay is still greatly enhanced, and so on. There is a need for improvement in vegetable and fruit packaging materials.

In order to improve the disadvantages of the existing vegetable and fruit packaging materials, the present invention is a plant delaying mature aging material and a manufacturing method thereof, the method comprising the steps of: adding a bismuth material; and gradually adding an ethylene reducing material and a specific content of water or solvent in a mixing process. Participate in the mix; and step by step through the mixing process The water or solvent is removed so that the surface or layer spacing of the tantalum material is partially or completely coated or filled into the ethylene reducing material to form a dry mixed powder having a delayed ripening effect.

Wherein, the step of adding the bismuth material is simultaneously adding a mixing promoting functional material to participate in premixing; the water or solvent is premixed with the ethylene reducing material to form a liquid solution, sprayed or dropped into the enamel material and the mixed promoting functional material. Into the mixing, and gradually remove water or solvent in the mixing, so that the ethylene reducing material is partially or completely coated or infiltrated into the pores or layer spacing to obtain the dry mixed powder.

Further, the dry mixed powder is mixed with a gel-like material to form a first-class dynamic spray coating.

The invention further provides a plant delaying mature aging material comprising a bismuth material and an ethylene reducing material, wherein: the bismuth material is a material property having a porosity or a layer spacing, the bismuth material being a vermiculite, a clay or a mixture thereof; and the ethylene reducing material is bromine water, potassium permanganate, potassium bromide or a mixture thereof, the ethylene reducing material being bonded to a local or total surface or pore or layer spacing of the tantalum material.

Wherein, the plant delaying mature aging material comprises a base material and a mixing promoting functional material, and is formed into a film, a bag body, a foaming bag, a box body, the base material and the enamel material, the ethylene The material is mixed, and the base material is polyethylene, polypropylene, polystyrene or polyterephthalic acid; the mixed promotion functional material is calcium carbonate, titanium dioxide, bamboo carbon or activated carbon.

Among them, the plant delays the mature aging material as a flow dynamic spray liquid or paint. It comprises a gum-like material mixed with the tantalum material and the ethylene reducing material.

Wherein, the plant delays the mature aging material into a multi-layered layered film, a layered bag or a layered box, and the multi-layer structure comprises at least one ethylene adsorption functional layer and a coating outer laminate.

Wherein, the ethylene reducing material is further blended with a bacteriostatic agent or an anti-fogging agent, and the bacteriostatic agent is a silver ion release, a zinc ion release, an organic acid or an amine compound, and the anti-fogging agent is an interface activity. Agent.

As can be seen from the above description, the present invention has the following advantages:

1. The present invention has a layer spacing or a porous tantalum material, which can initially adsorb or capture the ethylene gas continuously released from fruits and vegetables; through the special process provided by the invention, the surface of the tantalum material is further combined with ethylene adsorption or reaction materials to adsorb ethylene. Or the dispersibility and specific surface area of the reaction material are greatly improved, the ethylene reducing ability is greatly increased, and the overall material usage amount is further reduced, the cost is reduced, and the material processing characteristics are improved; thus, the materials and methods proposed by the present invention are different from the conventional ones. If potassium permanganate is directly involved in the kneading, the problem of uneven dispersion and poor reaction is achieved, and the effect unpredictable by the prior art is achieved.

2. The invention has excellent plant delaying mature aging ability, can delay the ripening and aging of fruits, vegetables and plants, and can delay the ripening and aging of plants or fruits and vegetables by at least 1.5 times compared with general PE film or even other fresh-keeping packaging materials.

3. The present invention has the ability to promote the adsorption of ethylene to increase or promote the ability to adsorb ethylene gas, and further to provide the color of the final product of the present invention.

4. The present invention can be a multi-layer structure, and the coated plastic coats the ethylene adsorption functional layer inside, which can increase the shelf life of the present invention before use, and increase the shelf life of the present invention.

10‧‧‧矽Materials

12‧‧‧ pores

13‧‧‧ layer spacing

20‧‧‧ethylene reduction material

30‧‧‧Moldproof material

50‧‧‧ bag body

Figure 1 is a flow chart of the manufacturing steps of the present invention.

2 is a schematic view of a porous germanium material in accordance with a preferred embodiment of the present invention.

Figure 3 is a schematic illustration of a layer spacing germanium material in accordance with a preferred embodiment of the present invention.

4 is a schematic illustration of a modified multi-porous tantalum material in accordance with a preferred embodiment of the present invention.

Figure 5 is a schematic illustration of a modified material having a layer spacing 矽 material in accordance with a preferred embodiment of the present invention.

Figure 6 is a schematic illustration of a modified multi-porous tantalum material in accordance with a second preferred embodiment of the present invention.

Figure 7 is a schematic illustration of a modified material having a layer spacing 矽 material in accordance with a second preferred embodiment of the present invention.

Fig. 7a is a schematic view showing a preferred embodiment of ethylene gas and water molecules produced by adsorbing packaged fruits and vegetables on the surface of the present invention.

Fig. 7b is a schematic view showing a preferred embodiment of the antifogging agent being freed from the surface of the present invention to adsorb water molecules to form a water film.

Figure 7c is a schematic illustration of a preferred embodiment of potassium permanganate free to adsorb ethylene gas on the surface of the present invention.

Figure 8 is a schematic illustration of the use of a preferred embodiment of the present invention.

Referring to FIG. 1, the present invention delays the manufacturing method of mature aged packaging materials, and the steps thereof include:

STEP 1: Add a stack of materials 10, or further add a blending promoting functional material to participate in the premixing. The tantalum material 10 is a vermiculite (SiO ₂ ), a clay (Clay) or a mixture thereof. The mixing promoting functional material comprises calcium carbonate (CaCO ₃ ), titanium dioxide (TiO ₂ ), activated carbon or bamboo carbon.

Referring to FIG. 2 to FIG. 3, the enamel material 10 preferably has a porous 12 or a layer structure, and the porous 12 or layer structure can capture or adsorb ethylene gas continuously released from fruits and vegetables, and ethylene. The gas is confined between its pores 12 or the layer structure to avoid the spoilage of fruits and vegetables caused by ethylene gas. Among them, the multi-layer structure of the clay has a higher specific surface area and can adsorb more ethylene gas.

The mixing promoting functional material serves as an effect of promoting mixing uniformity in the mixing drying process. The mixing promoting functional material can further serve to adjust the color of the final product of the present invention or impart other functional effects, for example, adding the calcium carbonate can be used for colorless or transparent articles, and adding the dioxide. Titanium can be used for white products, and the addition of the bamboo carbon can be used for the products of black to provide the technical effect of preserving the photophobic fruits and vegetables, preventing light damage and assisting the adsorption of ethylene.

STEP 2: adding an ethylene reducing material 20 and a specific content of water or solvent to participate in mixing, so that the ethylene reducing material 20 can be dissolved and dispersed in water or a solvent to form a liquid solution; the aforementioned specific content refers to the ethylene reducing material. 20 is soluble or effective dispersed in the water or solvent. The solvent contains methanol, ethanol, acetone or methyl ethyl ketone (MEK) or the like.

Referring to FIG. 4 to FIG. 5, the liquid solution is preferably gradually added to the bismuth material 10 and the mixing promoting functional material by spraying, dropping, spraying, etc. to participate in mixing, so that the ethylene reducing material 20 is obtained during the mixing process. The tantalum material 10 or the ethylene adsorption promoting material is bonded to a part or all of the surface of the tantalum material 10 or the ethylene adsorption promoting material or forms a core shell-like type. Gradually adding the participating blends in a spray manner allows the ethylene reducing material 20 to more easily bond or penetrate into the pores 12 of one of the tantalum materials 10 or the layer spacing 13 in the layer structure during mixing. In addition to the porous surface or the interlayer spacing 13 of the present invention, the negatively charged yttrium element (Si ^4- ) in the ruthenium material can further attract the ruthenium material. The positively charged metal ions (such as Mn ³⁺ , K ⁺ ) in the ethylene reducing material such as potassium permanganate or potassium bromide can make the ethylene reducing material adsorb, bind or infiltrate into the germanium material. Uniform and more complete. In this embodiment, the mixing of the aqueous solution and the injection into the mixing mode can promote the mixing between the bismuth material 10 and other additives, so that the overall bonding can be more uniform.

The ethylene reducing material 20 is a material or compound that absorbs, grabs, or reacts with ethylene to reduce the ethylene gas produced by the fruits and vegetables, such as bromine water, potassium permanganate, potassium bromide, or a mixture thereof. The ethylene reducing material 20 may further be blended with a bacteriostatic agent or an antifogging agent to form the liquid solution. The microbial agent comprises a silver ion release, a zinc ion release, an organic acid or an amine compound; the antifogging agent comprises a surfactant, preferably a nonionic surfactant.

STEP 3: The surface of the crucible material 10 or its pore 12/layer spacing 13 is partially or completely coated or filled into a dry mixed powder of the ethylene reducing material 20 by gradually removing water or removing the solvent during the mixing process.

The foregoing mixing process can be carried out by means of a mixing device such as a Hansel mixer (Hunschel) or the like to allow the ethylene reducing material 20 to enter or penetrate into the pore 12/layer spacing 13 in a manner of high speed mixing (about 400 RPM in this embodiment). Dry the mixed powder. The dewatering or solvent removal of the present embodiment can further utilize the auxiliary drying and dewatering mode during the mixing process, for example, by heating (about 85-105 ° C), environmental control or using the friction heat of the mixing process to remove water or solvent. Thereby, the aforementioned mixing and manufacturing effects are achieved.

The dry mixed powder described above is capable of adsorbing ethylene gas, and can be directly loaded into a transparent bag body and placed in a fruit and vegetable box or a vegetable box as an ethylene gas adsorbent to delay plant ripening and aging.

Further, referring to FIG. 6 to FIG. 7 , before or after the ethylene reducing material 20 is added to the present invention, a mildewproof material 30 may be added to participate in the mixing, so that the mildew resistant material 30 may be coated on the surface of the tantalum material 10 or partially filled. The pores 12/layer spacing 13 of the tantalum material 10; the mold proof material 30 of the present embodiment is first mixed with the porous material 10 and removed from the water, and then the ethylene reducing material 20 is added to participate in the mixing. The dry mixed powder forms a type similar to a core shell, as shown in FIG. 6; the mold proof material 30 of the present embodiment is an adipate such as hexadiene (2,4) potassium. Wherein, the manner of adding the mildewproof material 30 can also be gradually added to the mixing method by spraying in advance, and gradually removing water during the mixing process, so that the mildewproof material 30 can be uniformly bonded to the mixture. The surface of the crucible material 10.

Referring to FIGS. 7a-7c, the anti-fogging agent may be added together when the potassium permanganate is added to the bismuth material. In the present invention, the ruthenium material has the characteristics of adsorbing ethylene gas and water molecules, so that the ethylene gas and water molecules emitted from the fruits and vegetables coated in the present invention are first adsorbed to the surface of the packaging material containing the dry mixed powder. The water molecules simultaneously attract the anti-fogging agent to form a water film on the surface of the packaging material, and the potassium permanganate in the bismuth material is more easily released to the surface of the packaging material due to the water solubility characteristics of the potassium permanganate. Potassium permanganate absorbs ethylene and increases the effect of the present invention on the adsorption of ethylene.

STEP 4: The dry mixed powder is mixed with a base material, which is not limited, and may be polyethylene (PE), polypropylene (PP), polystyrene (PS), poly (terephthalic acid) (PET). Or a gelatinous material.

Referring to FIG. 8 , in practice, the plant-preferred mature aging material including the base material may be formed into a film, a bag body 50 or a box body by using twin-screw kneading granulation; or Further, a foaming gas such as propane, butane or gas is added to form a foamed bag; or the gel material may be included to form a fluid dynamic preservation spray and a paint paint.

Preferably, the present invention may be a two-layer or multi-layered layered film, a layered bag or a layered box. The dry mixed powder may be first mixed with the base material to form an ethylene adsorption functional layer, and another one is used. The coating outer layer and the ethylene adsorption functional layer are laminated by a co-pending device to form a layered film, a layered bag or a layered case, wherein the outer layer of the coating is not limited, and may be a polyethylene (PE) or a poly A coated outer layer made of propylene (PP), polystyrene (PS) or polyterephthalic acid (PET). The ethylene adsorption functional layer is wrapped inside the coated plastic and is not in contact with the outside, and the ethylene gas which may exist in the external environment may be prevented from reacting with the ethylene adsorption functional layer, thereby causing the function of the ethylene adsorption functional layer to be depleted. Inventing the inventory retention period before use, increasing the shelf life of the invention for sale.

The above-mentioned flow-dynamic fresh-keeping spray or paint lacquer can be sprayed or coated on any general film, bag or box surface without ethylene adsorption characteristics, so that the film, bag or box has ethylene gas. Adsorption characteristics. The gum material comprises polyvinyl alcohol (PVA), gelatin or arabic gum (Arabic Gum). The viscosity of the gel material ranges from 30 to 10000 (cps). The gel material can be made of polyvinyl alcohol (PVA), gelatin (Gelatin) or gum arabic (Arabic Gum). Thereafter, it is mixed with the dry mixed powder, wherein polyvinyl alcohol (PVA), gelatin (Gelatin) or gum arabic (Arabic Gum) may be in a weight percentage of 2 to 20% by weight. The low-viscosity gel material is suitable for use as a spray, and its viscosity can range, for example, from 30 to 500 (cps). The high-viscosity gel material is relatively suitable for coatings.

The following are the preferred embodiments of the invention:

[Example 1]

Take vermiculite (1~10wt%, preferably 2~3wt% of the last plastic pellet), and titanium dioxide (0.2~2wt% of the final plastic pellet), first add and mix, then add hexadiene (2,4) acid. Potassium (0.2~4.0wt% of the final plastic granules) is sprayed into the mixture to be mixed and dehydrated. When the water is removed, the heating can be used to assist the dewatering. Add 2~8wt% aqueous solution containing bromine water to participate in the mixing. Simultaneously remove water when mixing; then spray into the solution containing the bacteriostatic agent to participate in the mixing, and simultaneously mix with water or volatilize to form a dry powder; the finally formed dry mixed powder is added to the base plastic to be mixed and granulated to form a plastic granule. The plastic pellet is blown into a film bag. The step may be that the plastic powder is directly prepared by adding an appropriate amount of the dry mixed powder, and the plastic pellet is used to manufacture the finished product; or a relatively large amount of the dry mixed powder is mixed with the plastic to form the plastic pellet, and then formed in the forming process. Plastic pellets containing a dry mixed powder and a base The base plastic is mixed and finished into a finished product. The latter process can facilitate further uniform dispersion of the dry mixed powder into the finished product.

[Embodiment 2]

Take clay (1~10wt%, preferably 3~5wt% of the last plastic pellet), bamboo carbon (0.2~2wt% of the final plastic pellet), then add and add hexadiene (2,4) acid. Potassium (0.2~4.0wt% of the final plastic granules) is sprayed into the methanol/water solution to participate in mixing, mixing and removing methanol/water to be dried simultaneously; adding 2~8wt% methanol solution/water containing potassium permanganate to participate in mixing and mixing The methanol/water is removed to form a dry mixed powder; the solvent or solution containing the bacteriostatic agent and the antifogging agent is sprayed and mixed with water or evaporated to dry; the finally formed dry powder is added to the base plastic for mixing and granulation. The plastic pellets are formed and then blown into a film bag.

[Example 3]

Take vermiculite (1~10wt%, preferably 2~3wt% of the final plastic pellet), calcium carbonate (0.2~2wt% of the final plastic pellet), then add and add hexadiene (2,4) An aqueous solution of potassium acid (0.2 to 4.0% by weight of the final plastic granule) is sprayed into the mixture and pre-synchronized for dewatering; an aqueous solution containing 2-8 wt% of potassium bromide is added to participate in the mixing, and water is added during mixing; The bacteriostatic solution is sprayed, mixed with water or evaporated to form a dry mixed powder; the finally formed dry powder is added to the base plastic, mixed, granulated to form a plastic granule, and then pressed into a sheet, and then blistered into a box.

[Example 4]

Take clay (1~10wt%, preferably 3-5wt% of the final plastic), activated carbon (0.2~2wt% of the final plastic), and then add hexadiene (2,4) potassium ( The aqueous solution of 0.2~4.0wt% of the final plastic is sprayed into the mixture and gradually dried in water; an aqueous solution containing 2-8 wt% of potassium permanganate is added to participate in the mixing, and the mixture is again dehydrated to form a dry mixed powder; Spraying the solvent or solution containing the bacteriostatic agent to mix and dehydrate or volatilize and dry; adding the finally formed dry powder to the base plastic and propane, butane or gas to participate in the mixing and foam forming.

The foaming bag of the invention has a plurality of holes, and can be further used for providing shockproof and anti-collision effects when packaging fruits and vegetables. The foamed bag has the characteristics of adsorbing ethylene gas, and can adsorb the ethylene gas surrounding the plant, so although it has pores, it still has the effect of delaying at least 1.3 times of the mature aging time of the fruits and vegetables.

[Example 5]

Taking vermiculite (1~10wt%, preferably 2-3wt% of the final dry mixed powder), adding 2~8wt% aqueous solution containing potassium permanganate, mixing and dewatering while mixing; adding hexadiene (2,4) Potassium acid (0.2~2.0wt% of the final dry mixed powder) is sprayed into the mixture and dehydrated; then sprayed with methanol solution/water containing bacteriostatic agent to mix and remove water or Volatilizing and drying to form a dry powder; the finally formed dry powder is added to a water-soluble gum material of polyvinyl alcohol (PVA) and mixed to obtain a fresh-keeping spray or a paint lacquer water gel.

As can be seen from the above description, the present invention has the following advantages:

1. The present invention has a layer spacing or a porous tantalum material, which can initially adsorb or capture the ethylene gas continuously released from fruits and vegetables; through the special process provided by the invention, the surface of the tantalum material is further combined with ethylene adsorption or reaction materials to adsorb ethylene. Or the dispersibility and specific surface area of the reaction material are greatly improved, the ethylene reducing ability is greatly increased, and the overall material usage amount is further reduced, the cost is reduced, and the material processing characteristics are improved; thus, the materials and methods proposed by the present invention are different from the conventional ones. If potassium permanganate is directly involved in the kneading, the problem of uneven dispersion and poor reaction is achieved, and the effect unpredictable by the prior art is achieved.

2. The invention has excellent plant delaying mature aging ability, can delay the ripening and aging of fruits, vegetables and plants, and can delay the ripening and aging of plants or fruits and vegetables by at least 1.5 times compared with general PE film or even other fresh-keeping packaging materials.

3. The present invention has the ability to promote the adsorption of ethylene to increase or promote the ability to adsorb ethylene gas, and further to provide the color of the final product of the present invention.

4. The present invention can be a multi-layer structure, and the coated plastic coats the ethylene adsorption functional layer inside, which can increase the shelf life of the present invention before use, and increase the shelf life of the present invention. The invention can be applied to fresh-keeping in the case of no low-temperature refrigeration, such as fresh-keeping use in market display sales, transportation process, etc., or delaying mature aging use during refrigerated storage.

Claims (4)

A method for manufacturing a plant delaying mature aging material, comprising the steps of: adding a bismuth material having a material property of a layer spacing; and mixing or injecting an ethylene reducing material and water, methanol, ethanol, or the like in a progressive manner. Propanol or methyl ethyl ketone is involved in the mixing; and the surface or layer spacing of the bismuth material is partially or completely coated or filled by gradually removing water, methanol, ethanol, propanol or methyl ethyl ketone during the mixing process. The ethylene-reducing material forms a dry mixed powder having a delayed ripening effect. The method for manufacturing a plant delayed mature aging material according to the first aspect of the patent application, the dry mixed powder is further mixed with a base material to form a film, a bag body, a foam bag, and a box body. Wherein the foaming bagging process is performed by adding propane, butane or gas to the mixed foaming after adding the dry mixed powder to the base material; and adding the mixing promoting functional material by adding the cerium material. Premixed, the mixing promoting functional material comprises calcium carbonate, titanium dioxide, bamboo carbon or activated carbon. The method for manufacturing a plant delayed mature aging material according to claim 1 or 2, further mixing the dry mixed powder with a gum material to form a first-class dynamic spray paint. A method for manufacturing a plant delaying mature aging material, comprising the steps of: adding a bismuth material having a porous material characteristic; spraying or dropping an ethylene reducing material and water, methanol, and ethanol in a progressive manner during mixing; , acetone or methyl ethyl ketone is involved in the mixing; By gradually removing water, methanol, ethanol, acetone or methyl ethyl ketone during the mixing process, the surface or pores of the tantalum material are partially or completely coated or filled with the ethylene reducing material to form a delayed aging effect of the plant. A dry mixed powder.