JPH05193687A - Packing material and method for retaining freshness of plant - Google Patents

Abstract

PURPOSE:To hold water infallibly and easily without any leakage of water from a water retaining bag when cut flowers are transferred and also to retain freshness of the cut flowers. CONSTITUTION:A number of pleats 5 are formed vertically on a peripheral wall with their wider and narrower folding widths arranged alternately. Water is supplied into a water retaining bag 2 made of flexible and waterproof unwoven cloth. A water absorbing expansive water holding material 7 which is made of a string-shaped core 7a coated with water absorbing expansive resin is bundled together with a plant (a cut flower) P, and the cut side of the cut flower is dipped into the water inside the water retaining bag 2. Then an opening 3 of the water retaining bag 2 is closed and an outer periphery of a belt 6 which is provided on a peripheral inner surface 2a of the water retaining bag 2 is tightened by a string to hold the plant P.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of maintaining freshness of a plant such as cut flowers when it is transported in a required bundle, and a freshness-keeping package of a plant used in the method of maintaining freshness. It is related to materials.

[0002]

2. Description of the Related Art Conventionally, when a fresh flower producer collects cut flowers and ships them, the packaging is usually performed by wrapping the cut flowers in water-containing paper and packing them in a water-resistant cardboard box. Is wrapped with water-containing paper and plastic film and packed in a cardboard box. The disadvantage of this method is that it is difficult to keep the freshness of cut flowers compared to the time elapsed in the distribution process (usually one day and one night), and not only is the cardboard box for packaging severely damaged, but The result is hurt.

In retail stores, various cut flowers having different stem diameters and branch branches are bundled and delivered to customers on a daily basis. At this time, the cut water of the cut flowers retains water. A sponge is applied, a plastic film is wrapped, and it is further decorated with aluminum foil etc. and packed in a cardboard box. However, since sufficient water retention is not ensured, freshness is already lost when the product is delivered to the customer, and the product value is reduced, causing trouble.

Under such circumstances, measures have been taken to extend the freshness retention period of cut flowers. For example, Japanese Patent Laid-Open No. 1-3
No. 20939 discloses that cut flowers are bundled by a water leakage prevention band using a strip-shaped water-swellable resin having arbitrary elasticity and bendability, and the cut flower bundle is inserted into a water retaining bag, and the cut end is filled with water. In the state of being dipped in water, a method of binding from the outside of the water retaining bag at the location of the water leakage prevention zone is shown.

[0005]

However, when bundling various cut flowers having different stem thickness and branch swing, it is very difficult to fill the voids with the water-swelling resin as described above. Since the wrinkle part of the water retention bag in the binding part has a capillary phenomenon and causes water leakage, when the bunch of cut flowers is laid sideways, water leaks from the water retention bag and retains water. May lose effect.

Therefore, in order to solve the above problems, the present invention does not easily cause water leakage from a water retention bag at a binding point of a plant when a plant such as a cut flower is transported, and the plant stem, leaf, etc. It is an object of the present invention to provide a freshness-retaining packaging material capable of surely stopping water in the gap between the plants and reliably maintaining freshness of the plant, and a method of retaining the freshness of the plant.

[0007]

Means for achieving the above object will be described below with reference to FIGS. 1 to 6 corresponding to the embodiments. Package 1 for keeping freshness of plant of this invention
Is formed of a flexible and waterproof material in the shape of a bag, and a large number of pleats 5 having long and short alternating folding widths are formed on the peripheral wall, and the openings 3 are expanded and contracted by expansion and contraction of the pleats 5. And a water retaining bag 2 in which a strip 6 made of a water-swellable resin is provided on the inner surface 2a of the peripheral wall near the opening 3 in the circumferential direction. The water retention bag 2 included in the packaging material 1 may be formed of a waterproof non-woven fabric, or may be formed of a sheet material in which a non-woven fabric is attached with a waterproof resin film. ..

The method for maintaining freshness of plants according to the present invention is
In the method of keeping freshness of a plant for holding the plant P, water is supplied to the inside of the water retaining bag 2, the cut portion or the root of the plant P is immersed in water, and the opening 3 of the water retaining bag 2 is bound. The pleats 5 are formed of a flexible and waterproof material in a bag shape, and a plurality of pleats 5 having long and short alternating folding widths are continuously formed on the peripheral wall, and the pleats 5 are expanded and contracted to expand and contract the opening 3. A water-swellable resin strip 6 is provided in the circumferential direction on the inner surface 2a of the peripheral wall in the vicinity of the opening 3, and after the plant P is inserted into the water retention bag 2,
The opening 3 of the water retention bag 2 is reduced in diameter, and the plant P is held by binding the outer circumference of the band 6 provided in the water retention bag 2 at least at one place. In addition, after inserting the plant P and the water-swelling expansive water-stopping material 7 formed in the shape of a string or rod that abuts on the stem Pa of the plant P from the opening 3 of the water retaining bag 2, the water retention is performed. The opening 3 of the bag 2 may be reduced in diameter, and the plant P may be held by binding the outer periphery of the band 6 provided in the water retaining bag 2 at least at one place.

[0009]

After supplying water to the inside of the water retaining bag 2, the water absorbing expansive water blocking material 7 is bundled together with the stem Pa portion of the plant P such as cut flowers and inserted through the opening 3 of the water retaining bag 2. Then, the pleats 5 formed on the peripheral wall of the water retaining bag 2 are folded to reduce the diameter of the opening 3 of the water retaining bag 2, and the outer peripheral position of the strip 6 provided on the inner surface 2a of the peripheral wall is bound to form a plant P. Attach the packaging material 1. As a result, even if the plant P is tilted or tumbled, the moisture in the water retention bag 2 is absorbed by the strip 6 and the water-absorptive water-stopping material 7 and they expand, so that the inner surface of the water retention bag 2 and the plant P The space between the stems Pa is filled so that the water inside does not leak out through the opening 3 of the water retention bag 2.

[0010]

EXAMPLE A plant freshness-keeping packaging material 1 of the present invention is generally constituted by a substantially bag-shaped water retaining bag 2, a water-swelling and water-stopping material 7, and a string 8 for closing an opening 3 of the water retaining bag 2. Has been done.

First, the water-retaining bag 2 is a flexible and waterproof film-like material, such as waterproof paper, plastic film, aluminum foil, or the like, preferably a non-woven fabric or waterproof. As shown in FIG. 1, a non-woven fabric to which a resin film having a waterproof property is adhered is formed into a substantially bag shape. As shown in FIG. 1, the upper opening 3 has a large diameter and the bottom 4 has a small diameter and is substantially cup-shaped. It is said that.

In the water retaining bag 2, a large number of pleats 5 having folds in the longitudinal direction are formed on the peripheral wall extending from the opening 3 to the bottom 4.
Has been applied. As shown in FIG. 2, the pleats 5 have long and short folds alternately and continuously formed. That is, as shown in FIG. 3, this water retaining bag is formed by bending a circular sheet-like material along substantially radial folding lines (solid lines in FIG. 3 are valley folds and broken lines are mountain folds).

As shown in FIGS. 1 and 2, on the inner surface 2a of the peripheral wall near the opening 3 of the water retention bag 2, as shown in FIGS. 1 and 2, the circumferential direction, that is, the outer circumference in the development view of FIG. A strip 6 is provided along the line. This strip 6
Is provided by attaching a substantially tape-shaped molded product formed of a water-swellable resin to the inner surface 2a of the peripheral wall of the water-retaining bag 2, or a water-swellable resin formed in the form of a paint. It is provided by applying it to the inner surface 2a of the peripheral wall in a band shape.

Next, the water-swellable water-stopping material 7 is a flexible cord-like material formed by twisting paper, natural organic fibers, synthetic organic fibers, or inorganic fibers. 7a, the core material 7a is impregnated with a water-swellable resin, and the surface of the resin is also coated with the resin and dried. As the water-absorbent expansive resin to be impregnated in and applied to the water-absorbent expansive waterproof material 7, the same material as the material of the strip 6 provided on the inner surface 2a of the peripheral wall of the water retaining bag 2 is used.

This water-absorptive water-stopping material 7 is coated with a water-absorptive resin in the same manner as above on the surface of a rod-shaped core material having rigidity without flexibility such as wood, metal, plastic, or glass. And dried.

The water supplied and filled in the water retaining bag 2 contains agents such as a flower life-prolonging agent, a nutrient, a freshness-keeping agent, and a water preservative in order to maintain the freshness of the plant P such as cut flowers. Is added. In this case, the material of the water retaining bag 2 is made of a material that is not attacked by the medicine.

Now, the plant P made from this freshness keeping packaging material 1
The packaging method of is explained. First, water is poured into the water retaining bag 2. Next, as shown in FIG. 1, a plant P, for example, a stem Pa portion of a bundle of cut flowers and the like, and a string-like water-absorptive and water-stopping material 7 are bundled together. The position of the water-absorptive water-stopping material 7 when bundling is set not above the lower end of the stem Pa but slightly above the lower end thereof.

Next, the cut end of a plant P, such as a bundle of cut flowers, or the root of a plant having a root, is dipped in the water in the water retention bag 2 and the water-absorptive expansion is stopped. The water material 7 is inserted through the opening 3 so that the portion where the water material 7 is bundled with the stem Pa of the plant P is at the position of the strip 6 of the water retaining bag 2.

Then, the diameter of the opening 3 is reduced so as to close the opening 3 of the water retaining bag 2. In addition, from the shape of the pleat 5, that is, the bent state, the water retaining bag 2 is bent so that the long width side covers the short width side of the pleat,
The diameter of the opening 3 is reduced, and as shown in FIG. 5, the pleats 5 are curved in the same direction so that the long pleats are on the front surface side and have a substantially cylindrical shape.

After reducing the diameter of the opening 3 of the water retention bag 2,
As shown in, the outer periphery of the water retention bag 2 is bound at the position of the band 6 by a string 8 such as a vinyl-coated wire. After bundling, when the water in the water retention bag 2 is brought into contact with the water absorbing expansive water blocking material 7 bundled with the plant P and the strip 6 on the inner surface of the water retaining bag 2, the strip 6 absorbs water and absorbs water. The resin swells, and the water-swellable water-swellable waterproof material 7 in the form of a string is swelled in the diameter direction around the core material 7a by the water-swellable resin applied to the surface thereof.

Then, as shown in FIG. 6, the strip 6 on the inner surface 2a of the peripheral wall of the water retaining bag and the string-shaped water-swelling and water-stopping material 7 respectively change into a gel state, and each stem Pa of the plant (bouquet) P is changed. And the inner surface 2a of the water retaining bag peripheral wall and the gaps between the stems Pa are filled. The water-swellable and water-stopping material 7 has a core material 7a as shown in FIG. As a result, the stem Pa portion of the plant (bouquet) P in the water retention bag 2 is securely held, and each stem P
Water leakage is prevented from the gap between a and the gap between the stem and the leaf, and the gap between the stem Pa portion and the water retention bag 2.

In the method of bundling the opening 3 of the water retention bag 2 with the string 8, the band 8 of the water retention bag 2 is bound with the string 8, but the position matching the position of the band 6 is used. The opening 3 of the water retention bag 2 is closed by either a method of binding or a method of binding the strip body 6 at two positions above and below the band 6.

Therefore, according to the freshness-keeping packaging material 1 for plants as described above, the water-swelling bag 2 of the packaging material 1 is bundled with the bundle of plants P and the string-shaped or rod-shaped water-swellable water-stopping material 7 is bundled and inserted. Therefore, when the water-swelling water-stopping material 7 between each of the stems Pa of the bundle of plants P absorbs water, the water-swelling water-stopping material 7 has a water-swelling water-repellent resin applied on its surface, Expands in the diametrical direction around the core instead of the lengthwise direction,
Since the volume increases dimensionally, the gaps between the stems Pa are filled so as to be filled, and the gaps are surely eliminated.

When the plant P bundled with the water-swelling water-stopping material 7 is inserted into the water-retaining bag 2 of the packaging material 1, the water-swelling resin is applied to the inner surface 2a of the peripheral wall of the water-retaining bag 2. Since the strip 6 formed by the above is provided, the strip 6 absorbs moisture and expands, so that the inner surface 2a of the water retention bag 2 after binding the opening 3 and the stem Pa portion of the plant P The gap is filled up.

Further, the shape of the water retaining bag 2 is formed by forming the pleats 5 on the peripheral wall so that the pleats 5 can easily expand and contract, so that the opening 3 of the water retaining bag 2 can be easily expanded and contracted. That is, the pleated peripheral wall facilitates the work of reducing the diameter of the opening 3 of the water retaining bag 2, so that the cut end or root of the plant P such as a cut flower can be easily held. Further, since the opening 3 can be easily expanded / contracted, even if the plant P to be inserted, for example, the root part of the bouquet has a large diameter, it can be easily inserted and mounted.

As a result, the plant P fitted with the packaging material 1 and bundled with the water-swellable and water-stopping material 7 does not leak water in the water retaining bag 2 from the opening 3 even if it is tilted, so that the plant P can be reliably stopped. You can do water. That is, the plants P attached with the packaging material 1 and bundled together with the water-absorptive and water-stopping material 7 can be packed in a corrugated cardboard box or the like, and the work during transportation is simplified.
Therefore, since the plant P packaged by the packaging material 1 is kept in a water-retaining state, the freshness of the plant P does not immediately drop even when it is packed in a cardboard box, and the commercial value is not deteriorated.

In the above-mentioned embodiment, an example in which a bouquet of cut flowers or the like is wrapped in the packaging material 1 has been described, but the same effect can be obtained by packaging fresh vegetables. Also, sapling packaging, cuttings,
It can also be packaged for growing grafts.

Further, in the present embodiment, although the materials other than the material of the water retaining bag 2 of the packaging material are not described, the water retaining bag 2 may be transparent or opaque, and may be colored. Further, the surface of the water retaining bag 2 may be printed to add design characteristics.

Further, in this embodiment, the water retaining bag 2 of the packaging material 1 is obtained by bending a circular sheet-like material as shown in FIG. 3 by mountain folds and valley folds as shown in the figure. The valley fold of the fold line, which is the outer circumference of the bottom located at the center of each folding curve in the development view of the water retention bag 2, may be folded and formed as a mountain fold. In this case, in the above-described embodiment, the folding line that appears when the water retaining bag is reduced in diameter has a spiral shape, but in the case of mountain folding, this folding line appears almost vertically.

Further, in the above-mentioned embodiment, an example was described in which the water-absorptive water-stopping material 7 was bundled with the stem Pa portion of the plant P and placed in the water-retaining bag 2. Alternatively, the water retaining bag 2 may be formed into a net shape or a basket shape to form a temporary lid of the water retention bag 2, and the stem of the plant P may be inserted into the mesh to hold the plant P.

Further, in the above-mentioned embodiment, an example was described in which the bundle of plants P was bundled with the string-like water-swellable water-stopping material 7 and inserted into the water retention bag 2. Not only this, but also after the opening 3 of the water retaining bag 2 is bound, a paste-like water-swelling resin having viscosity may be injected from this opening 3. This paste-like water-swellable resin is a paste prepared by adding water or an alcohol aqueous solution to a water-swellable resin hydrate (gel) having a single structure, a water-soluble resin or a water-swellable resin composition containing a thickener. Is. Then, this paste-like water-swelling resin is injected between the stems and leaves of the plant P such as cut flowers. Then, it is possible to reliably fill the gap between the stem Pa and the gap between the water retaining bag 2 and the stem Pa together with the above-mentioned string-shaped water-absorption-expandable water blocking material 7, and it is possible to prevent water leakage.

[0032]

As described above, according to the plant freshness maintaining method and the plant freshness maintaining packaging material of the present invention, the shape of the water retaining bag of the packaging material is the bag shape in which the peripheral wall is pleated. , The opening of this water retention bag can be expanded and contracted freely by the expansion and contraction of this pleat, and it is easy to insert a plant from this opening, and a single cut flower, a bouquet of multiple flowers, plants with uneven roots, and stem parts It can be easily installed even with a bunch of cut flowers of different thicknesses, and in order to hold this plant, it is possible to easily reduce the diameter of the opening of the water retaining bag by the pleats and bind it, thus improving workability. There is an effect.

Further, since the folding width of a large number of pleats formed on the peripheral wall of the water retaining bag is made to have a shape in which the length and the short length are alternately continuous, each pleat radiates when the diameter of the opening of the water retaining bag is reduced. Since it does not project in the direction and bends, there is an effect that it is easy for an operator to hold the water retention bag in the reduced diameter state in which the plant is held.

Further, a strip of water-swellable resin is provided on the inner wall surface near the opening of the water-retaining bag of the packaging material, and plants are bundled together with the water-swellable water-stopping material in the water retaining bag. After the opening of the water retaining bag of the packaging material is reduced in diameter as described above and the outer periphery of the band portion is bound, the band body and the water-swellable water-stopping material are kept in the water retaining bag. By absorbing water, it expands so as to surely fill the opening of the water retention bag after binding and the stem portion of the plant, and the gap between each stem and between the stem and the leaf, so the plant to which this packaging material is attached Has an effect that the water in the water retaining bag does not leak from the opening even if the vehicle rolls over or falls. In other words, the plant with this packaging material does not leak water even if it falls, so it can be easily packed in a corrugated cardboard box that is not waterproofed, and the work during transportation is simple. effective.

Furthermore, since the plant packaged with this packaging material is in a sufficiently water-retaining state, even if it is transported in a state of being packaged in a corrugated cardboard box, the freshness is maintained and the commercial value is not lowered. There is an effect.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a freshness-keeping packaging material for plants according to the present invention.

FIG. 2 is a plan view of a water retention bag according to the same embodiment.

FIG. 3 is a development view of a water retention bag according to the same embodiment.

FIG. 4 is a perspective view showing a state in which the freshness-keeping packaging material according to the embodiment is attached to a plant.

FIG. 5 is a cross-sectional view showing a state in which the freshness-keeping packaging material according to the embodiment is attached to a plant.

FIG. 6 is a perspective view showing a state in which the freshness-keeping packaging material according to the embodiment is attached to a plant and then absorbed and expanded.

[Explanation of symbols]

1 ... Freshness-keeping packaging material 2 ... Water retention bag 2a ... Peripheral wall inner surface 3 ... Opening portion 4 ... Bottom portion 5 ... Pleats 6 ... Strip 7 ... Water-absorptive water-stopping material 7a ... Core material 8 ... String P ... Plant Pa ... Stem

Claims (5)

[Claims] 1. A plurality of pleats, which are formed of a flexible and waterproof material and have a fold width that alternates between long and short folds, are formed on the peripheral wall, and the openings are expanded and contracted by expanding and contracting the pleats. And a water-retaining bag in which a band of water-swellable resin is provided on the inner surface of the peripheral wall in the vicinity of the opening in the circumferential direction. 2. A method for maintaining freshness of a plant for holding a plant by watering the inside of a water retaining bag, immersing a cut or root of the plant in water, and binding the opening of the water retaining bag,
The water-retaining bag is formed of a flexible and waterproof material into a bag shape, and a large number of pleats having long and short alternating folding widths are continuously formed on the peripheral wall, and the expansion and contraction of the opening is performed by expanding and contracting the pleats. And a strip of water-swellable resin is provided in the circumferential direction on the inner surface of the peripheral wall in the vicinity of the opening, and after inserting the plant into the water-retaining bag, the diameter of the opening of the water-retaining bag is reduced. A method for maintaining freshness of a plant, which comprises holding the plant by binding the outer periphery of a band provided in the water retaining bag at at least one place. 3. A method for maintaining freshness of a plant for holding a plant, which comprises supplying water to the inside of a water-retaining bag, immersing a cut or root of the plant in water, and binding the opening of the water-retaining bag to retain the plant.
The water-retaining bag is formed in a bag shape with a flexible and waterproof material, and a large number of pleats having long and short alternating folding widths are continuously formed on the peripheral wall, and the expansion and contraction of the opening is performed by expanding and contracting the pleats. And a band of a water-swelling resin is provided in the circumferential direction on the inner surface of the peripheral wall in the vicinity of the opening, and a string that comes into contact with the plant and the stem of the plant through the opening of the water retention bag. A water-swellable water-stopping material formed in the shape of a bar or a rod is bundled and inserted, and then the opening of the water-retaining bag is reduced in diameter so that at least the outer circumference of the strip provided in the water-retaining bag is at least 1
A method for maintaining freshness of a plant, which comprises holding the plant by bundling at various places. 4. The freshness-keeping packaging material for a plant according to claim 1, wherein the water-retaining bag is made of a waterproof non-woven fabric. 5. The plant freshness-keeping packaging material according to claim 1, wherein the water-retaining bag is formed of a sheet material obtained by sticking a waterproof resin film to a non-woven fabric.