JP2000226087A - Packaging body of fragile thin plate material and packaging method and transportation method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent fragile thin plate materials from cracking or deforming during transportation storage, and also facilitating the manufacture of a packaging body and removal of the fragile thin plate materials by disposing end part cushion materials having an outer shape being the same dimensions or larger than that of the fragile thin plate materials and a specific value of elasticity. SOLUTION: The packaging body 10 has fragile thin plate materials 12 being rectangular in plane. The fragile thin plate materials 12 is such that a number of plates in which ones from 10 sheets to 10,000 sheets are ordinarily superimposition-arranged in turn in the face direction, and intermediate cushion materials 14 are disposed in the middle of lamination rows of the fragile thin plate materials 12 at constant distances. In addition, put in a position at both the ends of lamination row of the fragile thin plate materials 12 are end cushion thin plate materials 20 consisting of a synthetic resin foam-molded article being substantially, and having its plane being substantially rectangular larger than the fragile thin plate materials 12, and further having an elasticity of 2-100 mm. In addition, a tightening tape 16 works to tighten and secure the end cushion materials 20, the fragile thin plate materials 12 interposed therebetween, and the intermediate cushion materials 14. The packaging body 10 can be transported and stored as it is or be housed in a different container.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a package, a packaging method, and a transportation method for brittle thin sheet materials, and more particularly, to a very thin ceramic plate used as a material for a solid electrolyte membrane for a fuel cell. This technique is used to transport and store brittle and fragile materials, that is, brittle thin sheet materials.

[0002]

2. Description of the Related Art As a solid electrolyte membrane for a fuel cell, a ceramic plate having a thickness of 100 to 300 μm and a size of about 100 mm square is used. This ceramic plate is made of zirconia or the like, and is a thin plate as described above, and therefore is an article that is brittle and difficult to handle. As packaging for providing such a thin plate for transportation and storage, the thin plate is stored one by one or a relatively small number in a bag made of a flexible synthetic resin film, and the bag is air-packed. They have been wrapped, stacked in multiple bags, or wrapped with laminated paper sheets in paper towels and stored in a case such as a paper box.

[0003] The reason why thin sheets are wrapped one by one or in small numbers is to prevent brittle and fragile thin sheets from being damaged during transportation and storage.

[0004]

In order to transport and store a large amount of the above-mentioned thin plate materials, a small number of the thin plate materials are accommodated in bags and packaged. It takes time to take it out. One fuel cell power generation system has 20 to 10,000 sheets, and even 50
Since 10,000 ceramic plates may be used, when the ceramic plates are transported and assembled as a power generation system at another place, the number of packed ceramic plates is four.
00 to 100000 sheets / time, further 1000 to 100
It is expected that the number of sheets becomes 000 sheets / time, and the labor of packaging and taking out work becomes very troublesome.

[0005] The problem to be solved by the present invention is that a thin and brittle plate-like article such as the above-mentioned ceramic plate can be transported and stored in a state where it is securely protected from being damaged, and the time required for packaging and taking out is reduced. It is an object of the present invention to provide a packaging body and a packaging method which do not require any cost. Another object of the present invention is to provide a method for transporting a thin and brittle plate-like article such as the above-mentioned ceramic plate, in a state where it is securely protected from being damaged.

[0006]

According to a package of the present invention, a plurality of brittle thin sheet materials are laminated, and the outer shape is the same or larger at both ends of the laminated brittle thin sheet material than the brittle thin sheet material. An end buffer plate having a bending resistance of 2 to 100 mm is provided. A specific configuration will be described. [Brittle thin plate] A thin plate having any material and shape may be used as long as the plate is made of a thin and brittle material that is liable to crack, chip or deform during transportation and storage.

Specifically, alumina, zirconia, aluminum nitride, mullite, cordierite, alumina /
Ceramics such as borosilicate glass, cordierite / borosilicate glass, nickel oxide / zirconia, and ceramic materials obtained by adding an oxide such as an alkaline earth element or a rare earth element to these ceramic materials are used. Alternatively, LaCrO ₃ , LaCaCrO ₃ , LaSrCr
O ₃ , LaCoO ₃ , LaSrCoO ₃ , LaMn
O ₃ , LaSrMnO ₃ , LaGaO ₃ , LaSrGa
La-based perovskite-type composite oxides such as MgO ₃ ,
Ce such as gallium-doped ceria and samaria-doped ceria
Ceramics made of a system composite oxide, a perovskite-type composite oxide in which a part of the metal element constituting these composite oxides is substituted with another metal element, and the like are used. Those made of polycarbonate resin or (meth) acrylic resin, and those made of glass are also used. A laminated sheet material obtained by laminating a plurality of these materials, or a thin sheet material made of these materials having a surface coated with a synthetic resin, a metal thin film, or the like is used.

More specifically, 2 mol% to 15 mol% used as a material for a solid electrolyte membrane or a sensor for a fuel cell.
Thin-film zirconia sheet stabilized with yttria, 3
A thin film zirconia sheet stabilized with scandia of from about mol% to about 15 mol%, a nickel oxide / yttria stabilized zirconia sheet used for an electrode sheet for a fuel cell,
Nickel oxide / samarium-doped ceria sheet, thin-film zirconia used for a fuel cell substrate having electrodes laminated on both sides or one side of a solid electrolyte membrane for a fuel cell + nickel oxide / yttria-stabilized zirconia structure, L
A structure such as aSrMnO ₃ + thin film zirconia + nickel oxide / yttria stabilized zirconia is used.

[0009] The shape of the thin plate material is appropriately selected according to the purpose of use. Specifically, the shape may be a square, a rectangle, a square with a rounded corner, a circle, an ellipse, or any other geometrical figure shape or a more complicated uneven shape. The thin plate may have a hole or a notch inside, and may be a donut-shaped one such as an optical disk.

The thin plate material may be a dense body, a porous body, or a structure of a dense body + a dense body, a structure of a dense body + a porous body, or a porous body + a dense body + a porous body. Or a structure of a porous body and a porous body. As used herein, the term “dense body” refers to a porosity of 5% or less, preferably 2%, calculated using a pore volume measured by a borosimeter (Autopore III type) manufactured by Micromeritics and a density measured by a true densitometer. The following are good,
The porous body has a porosity of more than 5% and 80% or less.

Further, a kind of flat sheet in which the electrolyte is processed into an uneven shape (dimple shape), a kind of flat sheet in which an electrode film is formed thereon, and an electrode film and a corrugated support layer are integrated with the uneven electrolyte. Structure is also included. As the dimensions of the sheet material, those having an outer area of 25 cm ² or more, those having a maximum outer diameter of 5 cm or more, and those having a rectangular shape of 5 cm or more in length and width are suitable for protection with the package of the present invention. .
The external area is an area of an external shape surrounded by an outer peripheral edge,
It is defined as the area including the holes and notches existing inside the thin plate material. In particular, it is suitable for those having an area of 75 cm ² or more, and the shape is suitable for a rectangle or a rectangle having a length of 10 cm or more and a circle having a diameter of 10 cm or more.
In particular, it is suitable for a large area having an area of 100 cm ² or more.

[0012] The thinner the sheet material, the greater the problem in packaging. The package of the present invention has a thickness of 30 to 1000 μm.
It can be applied to those having a thickness of about 50 to 300 μm. As the brittleness of the sheet material, those having a three-point bending fracture load of 20 to 1500 g are preferably used, more preferably 30 to 1200 g, further 40 to 1000 g,
Further, those having 60 to 600 g are more preferable.

The three-point bending fracture load is defined in JIS R-16.
In the three-point bending strength test specified by No. 01, it is the maximum load before the test piece breaks. As the measurement conditions, 50
Using a × 5 mm test piece, set the distance between the lower fulcrums (span) to 20 mm and the crosshead speed to 0.5 mm / min, without subjecting the surface to surface treatment such as polishing, until the test piece breaks. The maximum load shall be measured. Other detailed test conditions conform to the JIS standard.

The three-point bending strength itself in the above-mentioned JIS standard falls within a certain range depending on the material of the test piece, but the three-point bending fracture load varies depending on the thickness of the test piece. Therefore, in the present invention, since the thickness is an important condition for evaluating the brittleness of the thin plate material, a three-point bending breaking load is adopted without using the three-point bending strength. Further, the Weibull coefficient of the thin plate material is preferably 10 or more, and more preferably 1 or more.
One or more, more preferably 12 or more are preferable.

As a thin plate material, the maximum undulation height of the surface is
It is preferable that the thickness is 80% or less of the thickness of the thin plate material. More preferably, it is 50% or less or 30% or less, and most preferably 0%. The undulation of a thin plate refers to wavy irregularities on the surface and the warpage of the entire thin plate, which adversely affects the flatness of the sheet. If the undulation height is large, sheets cannot be stacked vertically when laminating the sheet material, and when the sheet material is tightened in the plane direction during packaging or when vibration is applied during transportation, the sheet material is locally applied to the sheet material. Is subjected to a large load, and cracks and cracks are easily generated. For the measurement of the maximum undulation height, a known measurement method and device are used. For simplicity, a slit material that can adjust the size of the gap is placed on the base, and the gap between the slit material when the thin plate material can not slide under the slit material by sliding on the base The maximum swell height is the value obtained by subtracting the thickness of the sheet material from the size of the slab.

It is preferable that the sheet material has a coefficient of static friction of 3 or less. It is more preferably 2 or less, and further preferably 1 or less. If the coefficient of static friction is more than 3, when the thin plate is transported as a package, when an external impact or the like is transmitted to the laminated brittle thin plate, it is difficult to reduce the impact force due to the slip of the thin plate. The probability of destruction tends to increase. This static friction coefficient is defined by JIS
It is a value obtained by measuring according to the friction coefficient test method for plastic films and sheets specified in K7125- (1987). In this case, the test piece was a 50 mm × 50 mm square felt 2 mm thick (J
R36W specified in IS L3201), and the mating material is 100-300 mm on a side or 100-300φ
As a brittle thin plate material, the sliding piece to be placed on the test piece is 50
Using a square silicon rubber plate or a metal plate with a size of 50 mm × 50 mm, the load of the test piece and the sliding piece can be pulled together at a speed of 100 mm / min with a load cell to set the initial maximum load to the static friction force (Fs). Load of contact force (Fp)
The static friction coefficient (μe) is calculated by the following equation.

Μe = Fs / Fp In the case of a dense body, the maximum height (Ry) of the thin plate material is preferably 0.3 to 10 μm (standard length 2.5 mm). More preferably, it is 0.8 to 5 μm.
In particular, when the sheet material is a zirconia sintered body, the surface roughness of both sides of the sheet material is 0.3 to 3 in maximum height (Ry).
μm and an arithmetic average roughness (Ra) of 0.02 to
It is preferably in the range of 0.3 μm. More preferably, the surface roughness of both sides of the sheet material is the maximum height (R
y) is 0.35 to 2 μm, and the arithmetic average roughness (R
a) is in the range of 0.025 to 0.1 μm.

Maximum height (Ry) and arithmetic mean roughness (Ra)
Can be measured according to JIS B-0601 (1994). Surfcom 1400-
A stylus type surface shape measuring instrument such as A12 (manufactured by Tokyo Seimitsu Co., Ltd.) is used. These surface roughnesses (maximum height (Ry),
When the arithmetic average roughness (Ra) is large, when the sheet is tightened in the surface direction during packaging or when vibration is applied during transportation, a large load is locally applied to the sheet, and cracks and cracks occur. It will be easier. When it is small, the laminated thin plate materials are likely to adhere to each other, making it difficult to take out one by one. In particular, when moisture enters between the thin plate materials due to dew condensation or the like during transportation, the work of peeling off the thin plate materials one by one becomes a great labor, and the thin plate material may be damaged.

In the present invention, in particular, the brittle thin sheet material is made of a brittle thin sheet material having a maximum undulation height of 80% or less of the thickness and a static friction coefficient of 3 or less, or a zirconia sintered body. The surface roughness is the maximum height (R
y) is 0.3 to 3 μm, and the arithmetic average roughness (R
In (a), a brittle thin sheet having a thickness of 0.02 to 0.3 μm is preferably used. [Lamination of brittle thin plate materials] The brittle thin plate materials are packaged in a laminated state in which at least two sheets, usually from ten to several tens of thousands, are stacked in the plane direction of each other. In particular,
About 100 to 30,000 sheets are laminated. Preferably 20
0 to 2000 sheets or 500 to 10000 sheets are laminated. The greater the number of sheets, the better the packaging efficiency, but if the number of sheets is too large, it will be difficult to handle to form the package, or the stress and strain generated between the laminated thin sheets will accumulate and the protective effect will be accumulated. Or a problem that the temperature decreases.

The total thickness of the laminate of brittle thin sheet materials is determined by multiplying the thickness of one brittle thin sheet material by the number of layers, and the number of members constituting the laminate other than brittle thin sheet materials such as end cushioning plate materials. It becomes the one that added the thickness. Usually, the thickness of the laminate is 10 to
It is set to 1500 mm, preferably 20 to 1000 mm or 50 to 800 mm. [End Buffer Material] As long as they are arranged at both ends of the laminated brittle thin material and can protect the thin material with a buffer, basically a normal buffer material is used.

As the end buffer plate material, a material having the same size as or slightly larger than the outer shape of the brittle thin plate material is used. Usually, an end buffer plate having a shape similar to the outer shape of the thin plate material is used, but the end buffer plate material surrounds the outer shape of the thin plate material, such as using a rectangular end buffer plate material for a circular thin plate material. What is necessary is just to have a shape. The difference between the outer dimensions of the thin plate and the inner dimensions of the end buffer plate is preferably set to 0 to 20 mm over the entire circumference, and more preferably to 0 to 10 mm.

The end cushion plate may be a flat plate, or may have a sponge structure, a notch, a hole, or the like, if necessary. In the end buffer plate material, an accommodation recess for accommodating the thin plate material can be provided on a surface arranged on the thin plate material side. By this housing recess, the laminated body of the thin plate material and the end buffer plate material are positioned without displacement. It is preferable that the inner peripheral shape of the housing recess is set to be the same as or slightly larger than the outer shape of the thin plate material. The depth of the recess is preferably about 2 to 10 mm. Instead of the accommodating concave portion, a positioning convex portion formed of a projection or a ridge may be provided at a position in contact with the outer periphery of the thin plate material.

When a tightening member described later is used, a guide groove for guiding and positioning the tightening member can be provided on the outer peripheral edge of the end buffer plate. Instead of the guide groove, a projection such as a ridge for guiding the tightening member may be provided. As a material of the end cushioning plate material, a usual packaging material or cushioning material such as polyurethane, polyethylene, neoprene rubber, butyl rubber, paper, and wood is used. They are used in the form of foams, sponge structures, sheet molded products, plate-shaped molded products, felt structures, corrugated (corrugated cardboard), plywood, etc. made of these materials. A material obtained by laminating a plurality of these material layers is also used. In addition, as long as the surface in contact with the brittle thin plate material is made of a material having excellent buffering properties as described above, the other surfaces and portions may be made of a material having little buffering properties. .

The end cushion plate material has a bending resistance of 2 to 10.
The one of 0 mm is used. Flex resistance is JIS K-5
It was measured in accordance with the bending resistance test specified in 400 (1979). This was obtained by bending the end cushion plate at 90 ° along a mandrel having a predetermined diameter (in steps of 1 mm), removing the mandrel, and visually observing the degree of damage. For example, when the bending resistance is 100 mm, at least one of cracks, chips, and cracks is generated in the end buffer plate material when tested using a mandrel having a diameter of 99 mm and the mandrel is not restored even if the mandrel is removed. When the test is carried out using a mandrel, it means that the end cushioning plate does not crack, chip or crack. If the bending resistance is too small, 1 mm or less, the material is not stiff and easily deformed, so that a sufficient cushioning function cannot be exhibited. If the bending resistance is too large, the material is too hard, and the external force is transmitted to the brittle thin sheet material as it is,
Again, the buffer function is inferior. More preferable conditions for the bending resistance are 3 to 100 mm, further 5 to 50 mm, and furthermore 10 to 30 mm.

The thickness of the end cushioning plate may be set so as to satisfy the above-mentioned condition of the bending resistance.
It is set to 100 mm, preferably 3 to 60 mm or 5 to 30 mm. In the case where the end cushioning plate has irregularities such as the above-described recessed portion, the thickness is defined by the thickness between the portion corresponding to the surface of the brittle thin plate and the outer surface. When the package is formed, it is preferable to apply a constant pressure in the surface direction between the end buffer plate and the brittle thin plate between them. The preferred range of the surface pressure is 1 to 500 gf / cm ² , more preferably 10 to 300 gf / cm ² , and still more preferably 20 to 200 gf / cm ² .
/ cm ² . If the surface pressure is too large, there is a problem that the brittle thin plate material is broken or deformed by the surface pressure. In order to apply an appropriate surface pressure, it is effective to tighten the end buffer plate material and the brittle thin plate material laminated with a tightening material described later. In addition, the surface pressure can be generated by packing the end cushioning plate material and the brittle thin plate material in a relatively small packaging box. [Intermediate cushioning material] Intermediate cushioning materials can be arranged at regular intervals in a lamination row of brittle thin sheet materials in which a large number of sheets are laminated.

The material and shape of the intermediate cushioning material may be substantially the same as those of the end cushioning plate material. Since the intermediate cushioning material is unlikely to be directly subjected to an external force unlike the end cushioning plate material, a relatively soft material or a material with low deformation resistance can be used. The thickness of the intermediate cushioning material is set to about 0.01 to 20 mm, and can preferably be set to 0.05 to 10 mm. If the intermediate cushioning material is slightly smaller than the outer shape of the end cushioning plate material, it can be more easily tightened by a later-described tightening material and housed in a packaging box.

When the number of laminated sheets increases only with brittle thin plates, stress and strain generated between the thin plates are accumulated, and there is a concern that the brittle thin plates may be damaged or deformed. The intermediate cushioning material is arranged at intervals such that the accumulation is not excessive. More specifically, the intermediate cushioning material can be arranged every several tens to several hundreds of thin sheets. It is also possible to arrange an intermediate cushioning material for each sheet material. [Tightening Materials] Tightening materials are used to integrally fix a laminate including a brittle thin plate material and an end cushioning material.

As the tightening member, a string, tape, or band made of synthetic resin, rubber, paper, fiber yarn, or the like is used. The tightening member is preferably made of a flexible material that can be easily tightened and removed. If an adhesive layer or an adhesive layer is provided on the back surface of the tape-shaped tightening material, the ends of the tightening material can be overlapped and fixed. If the tightening member has a detachable metal fitting at the end, it can be used repeatedly.

By using the tightening member, a certain pressure can be applied in the plane direction of the brittle thin plate from the end buffer plate. By this surface pressure, it is possible to prevent the thin plate material from moving, colliding between the thin plate materials, and generating uneven stress in the thin plate material. [Packing box, storage bag] The package can be used for transportation and storage as it is, but by storing the package in a packaging box or storage bag, dust and foreign matter from the outside can be converted into brittle thin plate material. Contact can be prevented. Also, a buffering effect against external force can be expected.

As the packaging box, a packaging box having the same material and the same structure as those of a packaging box used for packaging various general articles is used. For example, paper such as cardboard, synthetic resin such as polyurethane and its foam, wood such as plywood,
Those made of metal such as duralumin and other materials, and those obtained by applying a synthetic resin coating on the inner surface or outer surface of these box materials are also used.

It is preferable that the packaging box has a shape and dimensions that can be accommodated in a fixed state so that the packaging body does not move unintentionally. It is preferable that the packaging box is configured such that one surface or a plurality of surfaces can be freely opened and closed. The packaging material may be formed by folding the sheet material around the package. An end cushioning plate is attached in advance to a position facing the inner surface of the packaging box, and a brittle thin plate is inserted between the end cushioning plates and accommodated, thereby forming a package body in which the packaging box is also integrated. be able to.

As the storage bag, a normal packing bag made of synthetic resin, paper, or the like is used, and it is possible to prevent dust and foreign matter from coming into contact with the brittle thin plate material. When the brittle thin plate material and the end cushioning plate material are housed in the storage bag and the outer periphery of the storage bag is tightened with a tightening material, a package in which the storage bag is integrated can be formed. The storage bag in which the brittle thin plate material and the end cushioning material are stored can also be stored in the packaging box.

The packaging box and the storage bag can be stored in another transport container or storage container. In this case, if a normal packaging cushioning material is arranged between the inner surface of the transport container and the packaging box, more reliable cushioning protection can be performed. As the transport container, a container used for ordinary packing and transport is used, and examples thereof include a cardboard box, a wooden box, and a metal container. [Other packaging materials] A package can be formed by laminating brittle thin plate materials in a spelling storage material or a subdivided bag in a state where they are stored.

The spelling containing material is a material in which a plurality of spelling pieces are bound at one end. The spelling piece is made of a flexible synthetic resin film, paper, or the like, and is preferably as thin as about 0.01 to 2 mm, and has an outer shape slightly larger than the outer shape of the brittle thin plate material. By sandwiching brittle thin sheet materials one by one between each spelling piece of the spelling storage material, each brittle thin sheet material can be protected well. In addition, the work of storing and taking out the brittle thin plate material becomes easier as compared with individual bags.

A package is formed by dividing a large number of brittle thin plates constituting a package into relatively small numbers, and laminating a plurality of the divided brittle thin plates in small subdivided bags. Can be. The same material as the above-mentioned spelling piece is used for the material of the subdivision bag. By using such a small bag, a brittle thin plate material of an easy-to-handle number can be handled collectively. [Transportation method] In the present invention, a plurality of brittle thin sheet materials are transported in a state of a laminated body in which a plurality of laminated sheets are laminated. The brittle thin sheet material is made of a brittle thin sheet material having a maximum undulation height of 80% or less of a thickness and a static friction coefficient of 3 or less, or a zirconia sintered body. Also, a brittle thin plate having a maximum height (Ry) of 0.3 to 3 μm and an arithmetic mean roughness (Ra) of 0.02 to 0.3 μm can be used.

As a method of transporting a plurality of brittle thin plates in a laminated state, a brittle thin plate can be transported using the above-described package of the present invention, but is not limited thereto.

[0037]

FIG. 1 shows a package according to an embodiment of the present invention. The package 10 has a flat rectangular brittle thin plate material 12. A large number of brittle thin plate members 12, usually 10 to 10000 sheets, are arranged one after another in the plane direction.

In the middle of the lamination row of the brittle thin plate members 12, intermediate buffer members 14 are arranged at regular intervals. The intermediate cushioning member 14 is made of a synthetic resin sheet or the like, and
It has the same or slightly smaller outer shape as 2. Brittle sheet material 1
End cushioning members 20, 20 are disposed at both ends of the two stacked rows. As shown in detail in FIG.
Is made of a synthetic resin foam molded product, the plane shape of which is a substantially rectangular shape larger than the brittle thin plate material 12, and an inner shape which is substantially the same as the outer shape of the brittle thin plate material 12 on the inner surface in contact with the brittle thin plate material 12. Is provided. In the outer peripheral edge of the end cushioning member 20, a tape guide groove 24 having a shape obtained by diagonally cutting off the corner of the outer peripheral edge is provided at the center of each side.

As shown in FIG. 1, a large number of brittle thin sheets 1
A columnar laminated body composed of 2 and an intermediate cushioning material 14 arranged at a certain interval between them is arranged in a state sandwiched from both sides by end cushioning materials 20, 20 arranged at both ends thereof. Tape guide grooves 2 are provided outside the end cushioning members 20 and 20.
A tightening tape 16 made of a synthetic resin is wound so as to fit into the position 4, and the end cushioning members 20, the brittle thin plate member 12 and the intermediate cushioning member 14 therebetween are clamped and fixed. The presence of the tape guide groove 24 ensures the positioning of the tightening tape 16 and prevents the tightening force on the brittle thin plate 12 from being partially biased. Tightening tape 1
The brittle thin plate material 12 can be adjusted by adjusting the tightening strength of the brittle thin plate material 12.
Can be adjusted.

The rectangular column-shaped package 10 constructed as described above can be transported and stored as it is. The wrapping body 10 can be handled in a state of being housed in another wrapping bag or another wrapping container. The packaging box 30 shown in FIG. 3 can accommodate the packaging body 10 lying down. Packaging box 3
Numeral 0 is made of plastic such as polypropylene, metal such as duralumin or corrugated cardboard, and has a bottom surface, four side surfaces, and an upper surface which is disposed at the upper end of one side surface and can be freely opened and closed. If the package 10 is accommodated in such a packaging box 30, dust and foreign matter from the outside can be prevented from contacting the brittle thin plate 12 of the package 10. Brittle sheet material 12
Also, external force can be prevented from being applied to the surroundings. Packaging box
As shown in FIG. 3, the package is not limited to the one in which the package 10 is stored in a lying state, and may be the one in which the package 10 is stored in a vertically stacked state.

The transport container 40 shown in FIG.
A plurality of 0s are further packaged together. Transport container 40
The tray-shaped buffer holding members 44 and 46 for holding the packaging box 30 are accommodated in the inside. Buffer holding materials 44 and 46
Is formed of a synthetic resin foam molded article, has a substantially thick plate shape that enters the inside of the transport container 40, and has a holding recess 48 into which the packaging box 30 is fitted on one or both sides.

In the illustrated packaging form, buffer holding members 44 and 4 are provided above, below, and in the middle of three packing boxes 30 arranged in two rows.
6 are arranged. The upper and lower buffer holding members 44, 44 fit and hold the packaging box 30 in the holding recesses 48 arranged on the lower surface or the upper surface, and the middle buffer holding material 46 holds the upper and lower packaging recesses 48 on the upper and lower surfaces. The box 30 is fitted and held.

As a result, each of the packaging boxes 30 is accommodated in the transport container 40 in a state where the packaging boxes 30 are held in good cushioning by the buffer holding members 44 and 46 in a state where they do not come into contact with each other at intervals vertically and horizontally. Will be. [Direct accommodation in packaging box] In the embodiment shown in FIG. 5, a plurality of brittle thin sheet materials 12 are directly accommodated in the same packaging box 30 as described above without using the above-described tightening tape, and a package is formed.

The plurality of brittle thin plate members 12 are accommodated in the packaging box 30 with the rectangular end buffer plates 26, 26 abutting on both ends. The inside length of the packaging box 30 is set to be slightly shorter than the combined length of the large number of brittle thin plate members 12 and the end buffer plates 26, 26, and the packaging box 30 is elastically deformed to be brittle. If the thin plate 12 and the end buffer plates 26, 26 are accommodated, the brittle thin plate 12
, A constant surface pressure can be applied from the packaging box 30.

As shown in FIG. 6, the intermediate cushioning members 14 may be arranged at regular intervals in the middle of the lamination row of the brittle thin plate members 12. [Use of Subdivision Bag] In the embodiment shown in FIGS. 7 and 8, the brittle thin plate 12 is stored in the subdivision bag 52.

As shown in detail in FIG.
It is also possible to form a rectangular shape whose width is slightly wider and depth is slightly narrower with respect to the length of one side of the brittle sheet material 12, and the brittle sheet material 12 accommodates several to several hundred sheets. It has a possible thickness. In FIG. 7, in a state where the brittle thin plate material 12 is stored in the small bag 52, a part of the brittle thin plate material 12 is exposed outside the small bag 52.

As shown in FIG. 8, small bags 52 accommodating the brittle thin plate material 12 are housed side by side inside the packaging box 30, and the end buffer plates 26 are arranged at both ends of the row of the small bags 52. be able to. In the above-described embodiment, a certain number of brittle thin plate members 12 can be handled collectively by the small bag 52, and the work of storing and taking out the package box 30 can be easily performed. Since a plurality of sheets are put in and taken out of the subdivision bag 52 at once, it is less time-consuming than storing the brittle thin plate members 12 one by one in the bag. [Use of Spelling Containment Material] The embodiment shown in FIGS. 9 and 10 uses a spelling containment material 54.

The spelling containing material 54 is made of a relatively flexible synthetic resin film, and a plurality of spelling pieces 56 each having an outer shape slightly larger than the outer shape of the brittle thin plate material 12 are stacked, and spelled integrally on one side. Have been combined. The brittle thin plate members 12 are inserted one by one into the gaps between the respective spelling pieces 56 of the spelling containing material 54. Each brittle sheet material 12 has spelling pieces 56 on both sides.
Is abutted and protected.

As shown in FIG. 10, a plurality of spelling containers 54 accommodating the brittle thin plate material 12 are arranged side by side in the plane direction, and end buffer members 26, 26 are arranged at both ends. The package 10 is configured by being fastened at 16 and integrally fixed. In the above embodiment, the brittle thin sheet material 12 can be stored and taken out simply by inserting and removing the brittle thin sheet material 12 while turning over the spelling pieces 56 of the spelling containing material 54, so that the brittle thin sheet materials 12 are individually bagged. It is easier to handle than housed in such as. Moreover, since each brittle thin plate 12 is protected by the spelling pieces 56 abutting on both sides,
It also has excellent protection performance.

[0050]

EXAMPLE A description will be given of the result of specifically manufacturing a package of the present invention and evaluating its performance. -Example I- [Production of brittle sheet material] Commercially available 3 mol% yttria-stabilized zirconia powder (trade name "HS" manufactured by Daiichi Rare Element Chemical Co., Ltd.)
Y-3.0 ") 15 parts by weight of a binder composed of a methacrylic copolymer (molecular weight: 30,000, glass transition temperature: -8 ° C.), 100 parts by weight, 2 parts by weight of dibutyl phthalate as a plasticizer, dispersion medium 50 parts by weight of a mixed solvent of toluene / isopropanol (weight ratio = 3/2) was put into a nylon pot into which a 5 mm zirconia ball was charged, and kneaded at about 60 rpm at 70% of the critical speed for 40 hours to obtain a slurry. Prepared.

A part of the slurry was sampled, and toluene /
After dilution with a mixed solvent of isopropanol (weight ratio = 3/2), a particle size distribution analyzer “SALD-11” manufactured by Shimadzu Corporation
When the particle size distribution of the solid component in the slurry was measured using “00”, the average particle diameter (50% by volume diameter) was 0.35.
μm, 90 volume% diameter 0.85 μm, critical particle diameter (10
0% by volume) was 1.95 μm.

The slurry was concentrated and defoamed to adjust the viscosity to 30 poise (23 ° C.). Finally, the slurry was passed through a 200-mesh filter, and then coated on a polyethylene terephthalate (PET) film by a doctor blade method to obtain a green color. I got a sheet. This green sheet is cut into a square, and the upper and lower sides of the green sheet are 99.5 with a maximum height of 10 μm.
After being degreased by sandwiching between weight% alumina porous plates (porosity: 30%), baking at 1480 ° C. for 3 hours,
A 3 mol% yttria stabilized zirconia sheet (A-1) having a thickness of 50 μm was obtained.

The zirconia sheet (A-1) had a three-point bending fracture load of 42 g and a three-point bending strength of about 100 kgf /
mm ² . The Weibull coefficient was 12.2. Also, the glossy surface (PET surface) of the obtained sheet that was in contact with the PET film and the surface exposed to the air on the opposite side (Air surface) were equally divided into 15 mm squares, respectively. The surface roughness (maximum height Ry, maximum height Ry, at a measurement speed of 0.3 mm / sec) using a surface roughness meter “Surfcom 1400A12” manufactured by Tokyo Seimitsu Co., Ltd.
The arithmetic average roughness Ra) was measured. The analysis parameters were JIS B-060 revised in 1994.
Rule 1 was applied. This zirconia sheet (A-1)
As for the maximum height (Ry) of both surfaces, the minimum value on the PET surface side was 0.5 μm, and the maximum value on the Air surface side was 1.1 μm. The arithmetic mean roughness (Ra) has a minimum value on the PET surface side of 0.04 μm and a maximum value on the Air surface side of 0. 4 μm.
08 μm.

Further, a slit capable of adjusting the size of the gap is arranged on the base, and the obtained zirconia sheet is slid on the base to check whether it can pass under the slit. The value obtained by subtracting the thickness of the sheet from the height of the slit was defined as the maximum undulation height. The maximum undulation height of this zirconia sheet (A-1) was 30 μm, which was 60% of the sheet thickness.

The coefficient of static friction was such that a 50 mm × 50 mm square felt having a thickness of 2 mm and a silicone rubber plate of the same dimensions were bonded to the above-mentioned 150 mm round, 50 μm thick 3 mol% yttria stabilized zirconia sheet. The sheet and the felt were placed on top of each other, and the integrated body was pulled at a speed of 100 mm / min with a load cell, and the maximum load at the beginning of movement was read and calculated. The static friction coefficient of this zirconia sheet (A-1) was 0.8.

In the above-mentioned production method, the same raw material
The mixture was placed in a nylon pot charged with nylon resin balls having a diameter of 50 mm and kneaded at 50 rpm of a critical speed at about 40 rpm for 40 hours to prepare a slurry. A part of the slurry was sampled, and the particle size distribution of the solid component was measured in the same manner as described above. As a result, the average particle diameter (50% by volume) was 0.71 μm.
m, 90 volume% diameter is 1.96 μm, critical particle diameter (100
Volume% diameter) was 3.68 μm.

Using this slurry, coating was performed in the same manner as described above to obtain a green sheet. The green sheet was degreased and fired without being sandwiched between the upper and lower portions of the porous alumina plate to obtain a 150 mm round, 50 μm thick. Of 3 mol% yttria-stabilized zirconia sheet was obtained, and the No. 100 sandpaper (DCC-100CC-C manufactured by Sanyo Chemical Co., Ltd.)
The surface on the Air surface side was damaged by W) to obtain a zirconia sheet (A-2).

The zirconia sheet (A-2) has a three-point bending fracture load of 45 g and a three-point bending strength of about 105 kgf /
mm ² , and the Weibull coefficient was 7.8. The maximum height (Ry) of both sides of this zirconia sheet (A-2) is PE
The minimum value on the T surface side was 1.3 μm, and the maximum value on the Air surface side was 4.7 μm. Arithmetic mean roughness (Ra)
The minimum value on the PET surface side was 0.1 μm, and the maximum value on the Air surface side was 1.1 μm.

The maximum undulation height of this zirconia sheet (A-2) was 60 μm, which was 120% of the sheet thickness. The static friction coefficient of this zirconia sheet (A-2) was 3.4. [Manufacture of package] As the brittle thin plate material 12, a 50 mm thick, 150 mm round zirconia sheet (A) made of zirconia stabilized with 3 mol% of yttria obtained above was used.
-1) 3000 sheets are used.

As the end buffer plate 26, a thickness of 6 mm, 151
A polyethylene foam (manufactured by Hayashi Felt Co., Ltd., trade name: Sanvelka L1400) having a mm square and a density of 0.068 was used. The bending resistance of the end buffer plate 26 was 5.0 mm. 3000 zirconia sheets (A-1) were laminated, and end buffer plates 26 were arranged at both ends.

Then, a polypropylene tape (trade name: PP band, 15 mm wide, manufactured by Sekisui Chemical Co., Ltd.) is laminated with a cylindrical laminate made of a zirconia sheet (A-1) sandwiched between end buffer plates 26. The body is annularly wound from one set of opposing side surfaces to both end surfaces, and the other one pair is also annularly wound from the opposing side surfaces to the end surfaces. After that, the end face of the tape was fixed, and the laminate composed of the zirconia sheet (A-1) and the end buffer plate 26 was integrally tightened and fixed with the tape. At this time, the surface pressure applied to the end buffer plate 26 and the zirconia sheet (A-1) was 50 gf / cm ² .

The obtained package 10 is referred to as Example I-1. Package 1 was prepared in the same manner as in Example I-1, except that 10,000 zirconia sheets (A-1) were laminated.
0 was produced. The obtained package 10 is referred to as Example I-2. In Example I-1, the package 10 was formed by stacking only the zirconia sheet (A-1) without using the end buffer plate 26.
Was manufactured. The obtained package 10 is referred to as Comparative Example I-1.

In Example I-1, a 1 mm thick polyethylene foam (bending resistance 1 m) was used as the end buffer plate 26.
m) was used to produce a package 10. The obtained package 1
0 is referred to as Comparative Example I-2. In Example I-1, a 3 mm-thick veneer plywood (bending resistance 1) was used as the end buffer plate 26.
The package 10 was manufactured by using 50 mm or more, which was broken during the test and could not be measured. Comparative Example I
-3.

A package 10 was produced in the same manner as in Example I-1, except that 3000 zirconia sheets (A-2) obtained above were used as the brittle thin sheet material 12. The obtained package 10 is referred to as Comparative Example IV-4. [Manufacture of Transporter] The packages 10 of Example I-1 and Comparative Examples I-1 to 4 obtained in the previous step were accommodated in a bag made of a non-charged material, and the mouth of the bag was sealed. Here, as the non-chargeable material, a film molded from a polyolefin resin to which an antistatic material was added and kneaded was used.

A tray-like buffer holding material 4 as shown in FIG.
4 and 46 were prepared up and down, and four sets of bags 10 were accommodated in a transport container 40 of packing cardboard (double). Furthermore, the gap between the transport containers 40 was filled with a cushion material made of polyethylene (trade name: Aspac Sarasara, manufactured by Asahi Kasei Corporation). Therefore, the transport container 40 has 12000
Sheets of zirconia are packaged in the transport container 40
The total weight is about 68 kg.

Further, the packaging body 10 of Example I-2 obtained in the previous step is similarly packed with tray-like buffer holding members 44, 44 as shown in FIG. 4
6, the transport container 40 for packing cardboard (double)
, And a total of 9 sets of bagged packages 10 were accommodated in three rows of three. Furthermore, the gap between the transport containers 40 was filled with a cushion material made of polyethylene (trade name: Aspac Sarasara, manufactured by Asahi Kasei Corporation).

Accordingly, 90000 zirconia sheets are packaged in the transport container 40, and the total weight of the transport container 40 is about 620 kg. [Performance Evaluation Test] The transport container 40 containing 12000 zirconia sheets obtained in the previous step was subjected to JIS Z-02.
According to No. 02, a one-sided support drop test was conducted in which the zirconia sheet was dropped from a 15-cm-high table onto the floor, and the state of breakage of the zirconia sheet housed therein was evaluated. The floor structure has a concrete surface coated with urethane.

Further, in accordance with JIS Z-0205, the transport container 40 is placed on the sliding vehicle carrier on the rail, and a tilt impact test is performed in which the transport container 40 is tilted at an angle of 10 degrees to collide with the impact plate. The zirconia sheet was evaluated for damage. Package 1 of Example I-1 and Comparative Examples I-1 to 4
Table 1 below shows the results of the test performed on the sample No. 0.

Also, 16 transport containers 40 each containing 90000 zirconia sheets obtained in the previous step were fixed on a usual transport pallet. This pallet is 2
The zirconia sheet stored in the transport container was reciprocated between Himeji and Tokyo on a ton truck, and the damage status was evaluated. As a result, cracks occurred in 14 sheets,
The defect occurrence rate was 0.02%.

[0070]

[Table 1]

As a result of the above test, in Example I-1, an end buffer plate having a moderate bending resistance was used, and as compared with Comparative Example I-1 in which the end buffer plate was not used, brittle thinness was obtained. The breakage rate of the plate material was significantly reduced. In addition, in Comparative Example I-2 and Comparative Example I-3, the breakage rate was higher than that in Comparative Example I-1 in which the end buffer plate was not used, and the end buffer plate having appropriate bending resistance. It was demonstrated that the use of Further, in Comparative Example I-4, since a brittle thin plate having a large surface roughness was used, the breakage rate was significantly higher than that in Example I-1 using a brittle thin plate having an appropriate surface roughness. Became higher.

Also, regarding the actual transportation by truck, the defect occurrence rate is 0.1% or less, which is a good value. -Example II- [Production of brittle sheet material] Commercially available 8 mol yttria stabilized zirconia powder (trade name "HSY" manufactured by Daiichi Rare Element Chemical Co., Ltd.)
-8.0 ") and a slurry prepared in exactly the same manner as in Example I, except that a mixed powder of 100 parts by weight and 0.5 part by weight of high-purity alumina powder (trade name" TMDAR "manufactured by Daimei Chemical Co., Ltd.) was used. Prepared.

A part of this slurry was sampled, and the particle size distribution of the solid component was measured in the same manner as in Example I. The average particle size (50% by volume) was 0.12 μm and 90% by volume.
The diameter was 0.88 μm, and the critical particle diameter (100% by volume diameter) was 2.1 μm. Using this slurry, Example I
In the same manner as in the above, an 8 mol% yttria-stabilized zirconia sheet (B-1) having a diameter of 100 mm and a thickness of 300 μm was obtained.

In the same manner as in Example I, the sheet properties and the sheet laminate properties were measured. This zirconia sheet (B
The three-point bending fracture load in -1) was 530 g, the three-point bending strength was about 35 kgf / mm ² , and the Weibull coefficient was 10.3. The maximum height (Ry) on both sides of this zirconia sheet (B-1) is 1.1 μm on the PET side, and A
The maximum value on the ir surface side was 2.6 μm. The arithmetic mean roughness (Ra) is 0.07 at the minimum value on the PET surface side.
μm, the maximum value on the Air surface side was 0.16 μm.

The maximum undulation height of this zirconia sheet (B-1) was 120 μm, which was 40% of the sheet thickness. The static friction coefficient of this zirconia sheet (B-1) was 0.6. Thickness 7
0 μm zirconia sheet (B-2) and 50 μm thickness
Was prepared, and the physical properties were measured.

The zirconia sheet (B-2) had a three-point bending fracture load of 27 g and a three-point bending strength of about 35 kgf / m.
m ² and the Weibull coefficient were 8.3. The three-point bending fracture load of the zirconia sheet (B-3) was 17 g, the three-point bending strength was about 30 kgf / mm ² , and the Weibull coefficient was 7.4. As for the maximum height (Ry) of both surfaces of the zirconia sheets (B-2) and (B-3), the minimum value on the PET surface side is 0.9.
μm and 1.0 μm, the maximum value on the Air surface side is 2.6 μm
m and 2.8 μm. Arithmetic mean roughness (Ra)
Indicates that the minimum values on the PET side are both 0.05 μm,
The maximum values on the r-plane side were 0.17 μm and 0.16 μm.

The maximum undulation height of the zirconia sheet (B-2) was 50 μm, which was 70% of the sheet thickness. The maximum undulation height of the zirconia sheet (B-3) was 50 μm, which was 100% of the sheet thickness.
The static friction coefficients of the zirconia sheets (B-2) and (B-3) were 1.9 and 2.2. [Manufacture of package] Yttria 8 as brittle sheet material 12
Consisting of mol% stabilized zirconia, thickness 300
Disc-shaped zirconia sheet of 100 mmφ in μm (B-
1) Use 1000 sheets.

The zirconia sheets (B-1) were stored in units of ten sheets in the spelling storage member 54 shown in FIG. The spelling containing material 54 is made of paper and has a plane shape of 110 mm square.
An end cushioning material 20 having the structure shown in FIG. 2 was used. The material is the same as that of the end buffer plate 26 of the first embodiment. Housing recess 2
2 was a circular shape having an inner diameter of 102 mmφ, the thickness of the accommodation recess 22 was 5 mm, and the total thickness of the end cushioning material 20 was 10 mm. The bending resistance measured using a test piece taken from the inner bottom portion of the accommodation recess 22 was 4.5 mm.

The 10 pieces divided and stored in the spelling containing material 54
The 00 zirconia sheets (B-1) and the end cushioning materials 20, 20 at both ends thereof were wound in a cross shape with the same polypropylene tape and tightly fixed to obtain a package 10. At this time, the surface pressure applied to the zirconia sheet (B-1) was 200 gf / cm ² . The obtained package 10 contained 1000 zirconia sheets (B-1) and weighed about 14 kg. This is shown in Example II-
Let it be 1.

Next, in Example II-1, the package 10 was manufactured by laminating only the zirconia sheets (B-1) contained in the spelling containing material 54 without using the end cushioning material 20. The obtained package 10 is referred to as Comparative Example II-1. A package 10 was manufactured in the same manner as in Example II-1, except that the zirconia sheet (B-2) having a thickness of 70 μm was used as the zirconia sheet. This is referred to as Example II-2.

The zirconia sheet has a thickness of 50 μm.
Except for using the m zirconia sheet (B-3), a package 10 was produced in the same manner as in Example II-1. This is designated as Example II-3. [Production of transporter] In the same manner as in Example I, Example II-1
~ 3, and the package 10 of Comparative Examples II-1 and II were accommodated in a non-charged bag. Further, as in the case of the embodiment I, using the tray-shaped buffer holding members 44 and 46, the package 10 of 3 × 3 rows is used.
Was stored in a transport container 40 composed of a duralumin carrying case. The gap between the transport container 40 and the package 10 was filled with the same polyethylene cushioning agent as described above. [Performance Evaluation Test] The same test as in Example I was performed, and the results are shown in Table 2 below.

[0082]

[Table 2]

As a result of the above test, the usefulness of using the end cushioning material 20 was confirmed by comparing Examples II-1 to III-1 and Comparative Example II-1. Example II-1 and Example II-2,
It can be seen that, by comparing 3, the protection function of the package is different depending on the characteristics of the brittle thin plate material (three-point bending load). -Example III-[Production of brittle sheet material] Example I except that a powder obtained by adding 0.5% by weight of magnesium oxide to a commercially available alumina powder (trade name "AL-160SG" manufactured by Showa Denko KK) was used. A slurry was prepared in exactly the same manner as described above.

A part of the slurry was sampled, and the particle size distribution of the solid component was measured in the same manner as in Example I. As a result, the average particle diameter (50% by volume) was 0.65 μm and 90% by volume.
The diameter was 1.47 μm, and the critical particle diameter (100% by volume diameter) was 4.3 μm. Using this slurry, Example I
A green sheet was produced in the same manner as described above. This green sheet is cut into a square shape, and the upper and lower sides of the green sheet are spacers made of alumina having a maximum height of 10 μm (porosity: 1).
5%), and baked at 1575 ° C. for 3 hours to obtain a 200 mm square, 100 μm thick alumina sheet (C-1).

The physical properties of the sheet and the sheet laminate were measured in the same manner as in Example I. This zirconia sheet (C
The three-point bending fracture load in -1) was 66 g, the three-point bending strength was about 40 kgf / mm ² , and the Weibull coefficient was 13.1. The maximum undulation height of the zirconia sheet (C-1) was 50 μm, 50% of the sheet thickness, and the static friction coefficient of the alumina sheet (C-1) was 0.9.

As a raw material powder, only a commercially available alumina powder (trade name “AL-15-2” manufactured by Showa Denko KK) was used, 11 parts by weight of the above binder was added, and the ball milling time was 2 hours.
An alumina sheet (C-2) having a size of 200 mm square and a thickness of 100 μm was obtained in the same manner except that the firing temperature was maintained at 1650 ° C. for 5 hours for 0 hour. In the same manner as in Example I, the sheet properties and the sheet laminate properties were measured.

The zirconia sheet (C-2) had a three-point bending fracture load of 45 g and a three-point bending strength of about 30 kgf / m.
m ² and the Weibull coefficient were 6.5. The maximum undulation height of the zirconia sheet (C-2) was 90 μm, 90% of the sheet thickness, and the static friction coefficient of the alumina sheet (C-2) was 3.2. [Manufacture of package] Magnesia 5
100 μm thick made of alumina with 00 ppm added
And 5000 sheets of 200 mm square alumina sheet (C-1) are used.

As shown in FIG. 3, as the packaging box 30, a rectangular corrugated cardboard box 21 cm long, 55 cm wide and 21 cm high having a lid that can be freely opened and closed is used. Packaging box 3
In the inner surface of No. 0, a semi-rigid polyurethane foam (manufactured by Hayashi Felt Co., Ltd., trade name: Color Form EMT, density: 0.060) is provided on both end surfaces in the length direction, and an end buffer of 21 cm in length and width, 3 mm in thickness The plate 26 is pasted. The bending resistance of the end buffer plate 26 was 8 mm. Of the inner surface of the packaging box 30, the remaining side surface, the bottom surface, and the back surface of the lid are made of ester-based polyurethane foam (manufactured by Hayashi Felt Co., Ltd., trade name: Maltoprene SC, density: 0.031), 21 cm long and 55 cm wide. The inner sheet is stuck.

An alumina sheet (C) is placed inside the packaging box 30.
-1) are stacked side by side in the plane direction and stored. The intermediate buffer 14 is interposed every 500 sheets of the alumina sheet (C-1). The same material as the end buffer plate 26 was used for the intermediate buffer material 14. After accommodating 5000 alumina sheets (C-1), the lid of the packaging box 30 was closed and the lid was closed with an adhesive tape so as not to open. At this time, the surface pressure applied to the alumina sheet (C-1) was 30 gf / cm ² .

The obtained package is referred to as Example III-1.
Next, in Example III-1, as the alumina sheet, the maximum undulation height was 100 μm (100% of the thickness),
The coefficient of static friction was 2.1, and 10 out of 5000 sheets
A package was produced in the same manner as in Example III-1, except that the package was replaced with only 0 sheets. The obtained package was compared with Comparative Example III-
Let it be 1.

A package was manufactured in the same manner as in Example III-1, except that the alumina sheet (C-2) was used as the alumina sheet. Comparative Example III
-2. [Production of transporter] In the same manner as in Example I, Example III-
1. The packages of Comparative Examples III-1 and II were housed in bags. The bag used was made of polyethylene, and after accommodating the package, it was fixed with a polypropylene tape so that the outer periphery was difficult to form a cross.

Six bags each containing a package were accommodated in a transport container 40 consisting of a normal wooden box for packing. Transport container 40
Was filled with the same polyethylene cushioning agent as described above. [Performance Evaluation Test] The same test as in Example I was performed, and the results are shown in Table 3 below.

[0093]

[Table 3]

As a result of the above test, it is found that the protection function of the package is different depending on the difference between the maximum undulation height and the coefficient of static friction of the brittle thin plate material.

[0095]

According to the packaging body and the packaging method of the present invention, specific end cushioning plates are arranged at both ends in a state in which a plurality of brittle thin plates, which have conventionally been difficult to provide sufficient cushioning protection, are laminated. Further, it is possible to reliably prevent the brittle thin plate material from being cracked or deformed during transportation and storage. Moreover, packaging materials having a complicated structure are not required, and the production of the package and the removal of the brittle thin plate material from the package are facilitated, and the labor and cost required for packaging or transportation and storage can be greatly reduced. Become.

[Brief description of the drawings]

FIG. 1 is a side view of a package representing an embodiment of the present invention.

FIG. 2 is a perspective view of an end cushioning material.

FIG. 3 is a perspective view of a packaging box.

FIG. 4 is a sectional view of a transport container.

FIG. 5 is a cross-sectional view of a packaging box showing another embodiment.

FIG. 6 is a cross-sectional view of a packaging box showing another embodiment.

FIG. 7 is a perspective view of a storage bag showing another embodiment.

FIG. 8 is a sectional view of a main part of a packaging box in which a storage bag is stored.

FIG. 9 is a perspective view of a spelling container representing another embodiment.

FIG. 10 is a side view of a package using a spelling material.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Packaging body 12 Brittle thin plate material 14 Intermediate cushioning material 16 Tightening tape 20 End cushioning material 22 Receiving recess 24 Tape guide groove 26 End cushioning plate 30 Packaging box 40 Transport container 44, 46 Buffer holding material 52 Subdivision bag 54 Spelling storage material

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor ▲ High ▼ ▲ Saki ▼ Eijiro 992, Nishioki, Okahama-ku, Abashiri-ku, Himeji-shi, Hyogo 1 Nippon Shokubai Co., Ltd. No. 1 in Nippon Shokubai Co., Ltd.

Claims (8)

[Claims] 1. A plurality of brittle thin sheet materials are laminated, and the outer shape of the brittle thin sheet material is the same or larger than that of the brittle thin sheet material at both ends, and the bending resistance is 2 to 100 mm.
The package of the brittle thin plate material in which the end buffer plate material is disposed. 2. The package of brittle thin plates according to claim 1, further comprising a tightening member for tightening the outer periphery of the laminate including the plurality of brittle thin plates and the end cushioning material. 3. The package for a brittle thin plate material according to claim 1, wherein the brittle thin plate material has a maximum undulation height of 80% or less of a thickness and a static friction coefficient of 3 or less. 4. The brittle thin plate material is made of a zirconia sintered body, and both surfaces of the thin plate material have the maximum height (R).
y) is 0.3 to 3 μm, and the arithmetic average roughness (R
The package of a brittle thin plate material according to any one of claims 1 to 3, wherein a) is in the range of 0.02 to 0.3 µm in a). 5. A method for packaging a brittle sheet material using the package according to any one of claims 1 to 4, wherein 1 to 500 is provided between the end buffer plate material and the brittle sheet material.
A method of packaging brittle thin sheet material with a surface pressure of gf / cm ² . 6. A method for transporting a brittle thin plate using the package according to any one of claims 1 to 4, wherein the brittle thin plate is transported. 7. A method for transporting a plurality of brittle sheets, wherein the brittle sheet has a maximum undulation height of 80% of the thickness.
A method in which a brittle thin plate material having a static friction coefficient of 3 or less is used, and the brittle thin plate material is transported in a laminated state in which a plurality of the brittle thin plate materials are stacked. 8. A method for transporting a plurality of brittle thin sheets, wherein the brittle thin sheets are made of a zirconia sintered body, and the surface roughness of both sides of the thin sheets is the maximum height (Ry). A brittle thin plate having a thickness of 0.3 to 3 μm and an arithmetic average roughness (Ra) in a range of 0.02 to 0.3 μm is used, and is transported in a state in which a plurality of the brittle thin plates are stacked. Method.