JP5790027B2 - Package - Google Patents

Description

  The present invention relates to a package, and more particularly to a package that can be transported without causing a dimensional change in a patterned film.

  In recent years, liquid crystal display elements have been aimed at reducing the thickness and weight and improving impact resistance, and as a base material constituting a color filter, a TFT array, etc., a base material having a certain thickness that has been conventionally used, for example, Attempts have been made to use a flexible thin substrate, for example, a sheet-shaped resin film or a roll-shaped film in which a continuous resin film is wound around a core instead of a glass substrate. These resin films are generally conveyed in a state of being packed with a packing material such as cardboard.

  Various proposals have been made for transporting such a film substrate. For example, Patent Document 1 discloses a roll film in which an adhesive layer and a protective film are laminated to prevent scratches and wrinkles of the film being transported. Is disclosed. Patent Document 2 proposes a transportation method in which a cushion sheet is inserted between stacked substrates for the purpose of preventing the color filter from being scratched during conveyance.

Japanese Patent Laid-Open No. 11-157592 Japanese Patent No. 4494056

  However, even when transportation or the like is performed by the method proposed in Patent Document 1 or Patent Document 2, if a thin film or the like is used as a material for the substrate, In the resin film, the end, and in the roll-shaped resin film, the end parallel to the winding direction and the portion located on the outermost surface when wound are affected by moisture during transportation. Deviation from the dimensions will occur. For example, when transported in a high-temperature and high-humidity atmosphere, moisture is absorbed and the resin film expands. On the other hand, when transported in a low-temperature and low-humidity atmosphere, moisture is released and the resin film shrinks.

  If it does so, the dimension of the formed pattern will also generate | occur | produce similarly, and after a conveyance to a delivery destination etc., the problem which cannot perform high-definition patterning processing and highly accurate bonding in a delivery destination may arise. At present, there is no package that takes into account the problem of dimensional changes during transportation.

  The present invention has been made in view of such a situation, and provides a package that can be transported without causing a dimensional change in the patterned film regardless of the transported environment in transporting the patterned film. This is the main issue.

The present invention for solving the above-mentioned problems is a packing body in which a film with a pattern in which a pattern is formed on a resin film is sealed with a packing material. The packing material has a temperature of 40 degrees and a relative humidity of 90%. It has a moisture-proof performance with a water vapor permeability of 1.0 g / m ² · 24 hr · MPa or less.

  Moreover, a part or all of the surface of the packing material may be covered with a heat insulating material.

  The patterned film is a roll-shaped film with a pattern in which a predetermined pattern is provided on a continuous resin film and is wound around a core, and the length of the core of the roll-shaped film with a pattern is Both end portions in the vertical direction may be supported by a support, and the patterned roll-shaped film may be sealed in a state of floating in the package.

  Moreover, the said film with a pattern is a roll-shaped film with a pattern by which a predetermined pattern is provided on the continuous resin film, and this is wound by the core, Comprising: The said roll-shaped film with a pattern is the said resin film A roll-shaped film with a pattern in which a gap member is partially disposed on the resin film and wound with the gap member may be used.

  According to the present invention, there is no dimensional change in the patterned film during conveyance.

It is sectional drawing which shows an example of the package of this invention. It is sectional drawing which shows an example of the package of this invention. (A) is a schematic diagram which shows an example of the roll film with a pattern in which the space | gap member was provided, (b) is a schematic sectional drawing of an AA line. It is a schematic plan view which shows the example of arrangement | positioning of a space | gap member. It is a schematic plan view which shows another example of the resin film by which the space | gap member is arrange | positioned. It is a schematic plan view which shows another example of the resin film by which the space | gap member is arrange | positioned. It is a schematic plan view which shows another example of the resin film by which the space | gap member is arrange | positioned. It is a schematic sectional drawing which shows an example of a space | gap member.

Hereafter, each structure of the package of this invention is demonstrated concretely using FIG. FIG. 1 is a schematic cross-sectional view showing a packaging body 10 according to an embodiment of the present invention. A laminated body 25 in which a plurality of sheet-like patterned films 20 are laminated is sealed with a packaging material 30. Yes.

<< Packing body >>
The packaging body of the present invention is a packaging body 10 in which a film 20 with a pattern in which a pattern 22 is formed on a resin film 21 is sealed with a packaging material 30. The packaging material 30 has a temperature of 40 degrees and a relative humidity of 90. % Has a moisture-proof performance of 1.0 g / m ² · 24 hr · MPa or less.

<Film with pattern>
The film with pattern 20 may be any film as long as the pattern 22 is formed on the resin film 21, and the film with pattern is not limited in any way. Examples of the resin film include polyethylene naphthalate (PEN), polyethylene terephthalate (PET), polycarbonate (PC), polyimide (PI), polyetheretherketone (PEEK), polyethylene (PE), polypropylene (PP), and polyphenylene sulfide (PPS). ), Polyetherimide (PEI), cellulose triacetate (CTA), cyclic polyolefin (COP), polymethyl methacrylate (PMMA), polysulfone (PSF), polyamideimide (PAI), norbornene resin, allyl ester resin, etc. The film etc. which consist of can be mentioned.

  The resin film 21 may have a configuration composed of a single layer, or may have a configuration in which a plurality of layers are laminated. This is because the dimensional change amount due to the humidity change of the base material itself is small and the handling becomes easy.

As the humidity expansion coefficient of the resin film 21 used in the present invention, is preferably 2 × 10 ^-5 /% RH or less, more preferably less ^{RH 1 × 10 -5 /%,} 5 × More preferably, it is 10 ⁻⁶ /% RH or less.

The linear expansion coefficient of the resin film 21 used in the present invention is preferably 2 × 10 ⁻⁵ / ° C. or less, more preferably 1 × 10 ⁻⁵ / ° C. or less, and 5 × 10 ⁻ More preferably, it is ⁶ / ° C or less. This is because, like the humidity expansion coefficient, the amount of dimensional change due to temperature change is small, and handling is easy.

  The pattern formed on the resin film is an arbitrary pattern, for example, an optical functional layer used for an image display element for a liquid crystal display device or the entire image display element, more specifically, a color filter or various wiring patterns, Further examples include a hard coat layer, an antiglare layer, an antireflection layer, and a polarizing layer.

<Packaging material>
Since the resin film 21 is used for the patterned film 20 described above, when the patterned film 20 is conveyed in a high-temperature and high-humidity atmosphere of, for example, 40 ° C. and 90% RH, the resin film is used. Absorbs moisture and increases the dimensions of the resin film. On the other hand, when this patterned film 20 is conveyed in a low-temperature and low-humidity atmosphere at 5 ° C. and 10% RH, for example, moisture is released from the resin film and the dimensions of the resin film are reduced. And when a dimensional change arises in the resin film, the pattern formed on the resin film also changes in the dimension following the dimensional change of the resin film.

Therefore, the packaging body 10 of the present invention uses the packaging material 30 having the moisture-proof performance of the patterned film 21 having a water vapor permeability of 1.0 g / m ² · 24 hr · MPa or less at a temperature of 40 degrees and a relative humidity of 90%. Sealing prevents the patterned film from changing its dimensions due to the influence of moisture in the external environment during transportation.

  As the packaging material 30, a material having a moisture vapor transmission rate within the above range, which is moisture-proof performance, can be appropriately selected and used, and the material of the packaging material 30 is not particularly limited. For example, in the present invention, a gas barrier film or the like can be used as the packaging material 30. Examples of the gas barrier film include those obtained by laminating a base film and an inorganic oxide layer. Hereinafter, as an example of the packaging material 30, a packaging material 30 in which a base film and an inorganic oxide layer are laminated will be described.

  Base film includes poly (meth) acrylate, poly (meth) arylate (PAR), polyimide (PI), polyamideimide (PAI), polyethersulfone (PES), polycarbonate (PC), cyclic polyolefin copolymer Polynorbornene, cyclic polyolefin resin, polycyclohexene, polyetherketone (PEK), polyetheretherketone (PEEK), polyetherimide (PEI), polysiloxane, ethylene-tetrafluoroethylene copolymer (ETFE) Fluorine-based resins such as ethylene trifluoride chloride (PFA), tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (FEP), vinylidene fluoride (PVDF), and vinyl fluoride (PVF). .

  Examples of the inorganic oxide layer include oxides such as aluminum oxide, silicon oxide, magnesium oxide, calcium oxide, zirconium oxide, titanium oxide, boron oxide, hafnium oxide, and barium oxide. In consideration of productivity that can be within the above range, aluminum oxide, silicon oxide, silicon oxynitride, silicon oxycarbide, or silicon dioxide is preferable. As a method for forming the inorganic oxide layer, a vacuum deposition method, a sputtering method, an ion plating method, a PVD method, a plasma assisted CVD method, an ion beam assisted CVD method, or the like can be applied. Preferably, the PVD method is used from the viewpoint of productivity. Or ion plating. These methods can be selected in consideration of the type of base film or inorganic oxide film forming material, easiness of film forming, process efficiency, and the like.

  There is no limitation in particular about the method of packing the film 20 with a pattern with the packing material 30, for example, using the bag-shaped packing material 30 which has an opening part, and closing an opening part after inserting a film with a pattern in a packing material inside. Can be packed with.

  In the present invention, part or all of the surface of the packaging material 30 is preferably covered with the heat insulating material 40. By covering a part or all of the surface of the packaging material 30 with the heat insulating material 40, the temperature change inside the packaging body 10 can be suppressed, and the humidity inside the packaging body 10 does not change. As a result, the dimensional change of the patterned film 20 can be more effectively suppressed.

  Examples of the heat insulating material 40 include materials having high heat insulating properties such as foamed polystyrene, foamed urethane, glass wool, polyethylene terephthalate, or plastic nonwoven fabric containing polypropylene.

  As mentioned above, although the packing body 10 of this invention demonstrated centering on the example which packed the laminated body 25 formed by laminating | stacking the film 20 with a pattern with the packing material 30, as shown in FIG. The attached film may be a roll-shaped patterned film. Hereinafter, the case where the film with a pattern is a roll-shaped film with a pattern 200 will be described. Hereinafter, a roll-shaped film with a pattern is referred to as a patterned roll-shaped film.

  << Roll film with pattern >>

  As shown in FIG. 2, the patterned roll-shaped film 200 has a configuration in which a pattern (not shown) is provided on a continuous resin film 202 and is wound around a core 201. The resin film and pattern are as described above, and a description thereof is omitted here.

  The thickness of the continuous resin film is preferably in the range of 1 μm to 1 mm, more preferably in the range of 10 μm to 500 μm, and still more preferably in the range of 50 μm to 250 μm. This is because if the thickness of the resin film is too thick than the above range, the flexibility is impaired, and it becomes difficult to produce a roll-shaped film and it is easy to break. On the other hand, if it is thinner than the above range, there will be no strain and handling will be difficult.

  Although it does not specifically limit as a width | variety of the resin film used for this invention, For example, it is preferable to exist in the range of 100 mm-1000 mm, and it is more preferable that it exists in the range of 150 mm-600 mm.

  In addition, the structure which consists of a single layer may be sufficient as the continuous resin film used for this invention, or it may have the structure by which the several layer was laminated | stacked.

  Moreover, as shown in FIG. 2, both ends of the longitudinal direction of the core 201 are supported by the support body 210, and the roll film with pattern 200 floats inside the package. It is preferably sealed in a state. By setting it as such a structure, it can prevent that a crack etc. arise in the film part located in the outermost surface of a roll-shaped film with a pattern.

  In addition, as shown in FIG. 3, the patterned roll-shaped film 200 is formed by partially arranging a gap member 205 on a continuous resin film 202 and winding the resin film 202 together with the gap member 205. It is preferable. FIG. 3 shows an example in which the gap member 205 is arranged only on the end regions at both ends of the resin film 202 and is not formed in the pattern formation region t. Since the pattern formation region t will be described later, description thereof is omitted here. Moreover, since the edge part area | region of the both ends of a resin film is mentioned later, description here is abbreviate | omitted. 3A, the direction indicated by X indicates the longitudinal direction of the resin film, and the direction indicated by Y indicates the width direction of the resin film.

  As shown in FIG. 3 (b), by partially disposing the gap member 205, in the patterned roll film 200, a space is formed between the upper resin film and the lower resin film, and Since the gap member has air permeability and moisture permeability, it can be in contact with the outside air even in the winding, so the resin film in the winding also takes in moisture to the same extent as the resin film outside the winding. Is possible. Therefore, it becomes possible to make the moisture content inside and outside the winding uniform.

  Here, as the arrangement of the gap member 205, as described above, when the roll-shaped film with a pattern is used, the gap member 205 is placed on the resin film 202 so that the upper resin film and the lower resin film do not adhere to each other. There is no particular limitation as long as it can be partially arranged. For example, as shown in FIG. 3, you may arrange | position a space | gap member on the edge part area | region of the both ends of a resin film.

  FIG. 4 is a schematic plan view illustrating an arrangement example of the gap members. As shown in FIG. 4 (a), a gap member may be arranged at a predetermined interval in the longitudinal direction X of the resin film, or in the width direction Y of the resin film as shown in FIG. 4 (b). The gap member may be arranged with a predetermined gap, or as shown in FIG. 4C, the gap member with a predetermined gap in an oblique direction (acute angle direction) with respect to the width direction Y of the resin film. May be arranged.

  The arrangement position of the gap member 205 is not particularly limited, but it is preferable that no gap member is arranged in the region where the pattern is formed. Considering this point, it is preferable that the gap member is arranged at least on the end regions at both ends of the resin film. The “end region at both ends of the resin film” is a region existing at both ends in the width direction of the resin film. Specifically, the end region of the resin film is a distance from the end of the resin film in the width direction of 0.2 or less, particularly 0.1 if the length in the width direction of the resin film is 1. Hereinafter, it refers to a region of 0.05 or less in particular.

  5-7 is a schematic plan view which shows another example of the resin film 202 in which the space | gap member is arrange | positioned all. For example, the gap member 205 can be arranged so that the gap member 205 is arranged only on the end regions at both ends of the resin film 202 and not in the pattern formation region t. FIG. 5 shows an example in which the gap member 205 is disposed on the entire surface of the end region s at both ends of the resin film 202. Moreover, as shown to Fig.6 (a), the whole surface on the edge part area | region s of the resin film 202, and the edge side of the longitudinal direction X of the resin film 202 (The part shown with a dashed line in FIG. 6A) The gap member 205 may be disposed beyond the gap, or the gap member 205 may be disposed in a part of the end region s at both ends of the resin film 202 as shown in FIG. Normally, in consideration of problems such as the positioning accuracy of the gap member, as shown in FIG. 6B, a gap is formed in a part of the end region s at both ends of the resin film 202, more preferably in the central part of the end region s. A member 205 is disposed.

  Further, as shown in FIG. 7, the gap member 205 can be arranged so that the gap member 205 surrounds the pattern formation region t in addition to the end region s at both ends of the resin film 202. In this case, as shown in FIG. 7A, the gap member 2 may be disposed so as to surround the entire periphery of the pattern formation region t. As shown in FIG. May be arranged so as to surround except for a part of the periphery of the pattern formation region t. 7A and 7B, the gap member 205 is formed on the entire surface of the end region s, and in FIG. 7A, it is formed on the entire surface excluding the pattern formation region t. Although an example is shown, the present invention is not limited to this, and it is possible to dispose the gap member in any region as long as it is within the end region and within a region where a pattern is not formed other than the end region. is there.

  Next, the gap member will be described. The gap member 205 is partially disposed on the resin film 202 and has air permeability and moisture permeability that do not cause a difference in moisture content inside and outside the winding of the resin film 202. As such a gap member, it has flexibility, has air permeability and moisture permeability so as not to cause a difference in moisture content in and out of the roll of the patterned roll film, and has releasability. If it is high, it will not specifically limit, For example, a porous sheet, a nonwoven fabric, a carrier tape for IC chip conveyance, a wipe, paper, a nylon film etc. are mentioned.

  FIG. 8 is a schematic cross-sectional view showing an example of the gap member. The cross-sectional shape of the void member may be, for example, an irregular void member having irregularities formed on at least one surface, or a porous void member having a plurality of air holes. In addition, a gap member formed by processing one plate-like member into a wave shape may be used. Especially, it is more preferable that it is an uneven | corrugated shaped space | gap member by which the unevenness | corrugation is formed in at least one surface. This is because the gap member having the cross-sectional shape is excellent in air permeability and moisture permeability and is easily disposed on the resin film.

  Here, the concavo-convex shape means that, for example, the height of the convex portion is within a range of 0.01 mm to 1.5 mm, and preferably within a range of 0.1 mm to 0.5 mm, so long as the convex portion is not crushed. The distance between the projecting portions is in the range of 0.01 mm to 4.0 mm, preferably in the range of 0.1 mm to 2.0 mm. The height of the convex part and the distance between adjacent convex parts are measured using a caliper or a microscope in the case of mm order measurement, and in the case of a μm order measurement, the surface roughness is a stylus type. It is measured using a total (Mikasa Corporation, product name ET4000L-S). Note that the height of the convex portion is indicated by Q in the gap member 205 shown in FIG. 8, and the distance between the adjacent convex portions indicates the distance indicated by P in the gap member 205 shown in FIG.

Moreover, the shape of the surface of the convex part which contacts the resin film of a convex part may be a plane or a curved surface, but it is preferable that it is a plane. This is because the resin film is less likely to be damaged. The air permeability of the gap member is not particularly limited as long as the air permeability is such that the difference in moisture content between the inside and outside of the winding is not caused in the hoisting arranged on the patterned roll film. It is preferably 4 cm ³ / cm ² · sec or more. When the air permeability is smaller than this value, the air permeability and moisture permeability of the gap member are not sufficient, so that the moisture content inside and outside the winding should be made uniform in the hoisting used for the patterned roll film. This is because it may become difficult. The said air permeability is measured by JIS L1096 8.27.1 A method (fragile type method).

  Moreover, as surface roughness (Ra) in case a space | gap member is a flat member, it is preferable that it is 1 micrometer or more, it is more preferable that it is 2 micrometers or more, and it is further more preferable that it is 5 micrometers or more. This is because when Ra is smaller than the above range, the gap member has less gaps, and the air permeability and moisture permeability cannot be increased. In addition, Ra of the space | gap member used for this invention is 10 micrometers or less normally. In addition, "surface roughness (Ra)" here is "arithmetic mean surface roughness", and is measured based on JIS-B0601. Considering the shape, air permeability, surface roughness (Ra), and the like of the above-described gap member, among the above-described specific examples, the preferred gap member includes a porous sheet, a carrier tape for IC chip conveyance, a wipe, and nylon. A film etc. can be mentioned, As a especially preferable space | gap member, a porous sheet, a carrier tape for IC chip conveyance, etc. can be mentioned.

  The thickness of the gap member is preferably in the range of 20 μm to 200 μm. This is because if the thickness of the gap member is too thinner than the above range, the gap tends to be crushed when the resin film is wound, and if it is too thick, the resin film cannot be wound.

  The width of the gap member is not particularly limited as long as the gap member can be partially disposed on the resin film so that the moisture content inside and outside of the roll film with pattern is uniform. However, it is appropriately selected depending on the width of the resin film, the size of the pattern formation region, and the like.

  In addition, when arrange | positioning a space | gap member on the edge part area | region of the both ends of a resin film at least, as the width | variety of the said space | gap member, it exists in the range of 5 mm-60 mm, especially the range of 5 mm-30 mm, especially the range of 5 mm-15 mm. It is preferable to be within. If the width of the gap member is too wide than the above range, the protruding portion will be wasted when placed on the resin film, and if it is too narrow than the above range, it will be difficult to support the resin film, and the roll with pattern This is because the upper layer resin film and the lower layer resin film are in close contact with each other and the air permeability is impaired. Note that the width of the gap member in the above case refers to the distance indicated by u in FIGS.

<< Conveying method of packing body >>
Next, the preferable aspect at the time of conveying the package 10 of this invention is demonstrated. As described above, according to the package 10 of the present invention, the patterned film can be transported without causing a dimensional change regardless of the transported environment. Accordingly, the environment in which the package 10 of the present invention is transported is not particularly limited, but the package 10 of the present invention may be transported in an atmosphere of 23 ± 2 ° C. and 45 ± 5% RH. Particularly preferred.

  By transporting the package 10 of the present invention in an atmosphere of 23 ± 2 ° C. and 45 ± 5% RH, the temperature and humidity during transportation can be kept constant. Thereby, the moisture content of the resin film during conveyance can be made into 3% or less by the synergistic effect with the effect by the package 10 of the present invention described above. Specifically, the dimensional change per 100 mm of the resin film can be within 3.3 μm, and a patterned film having extremely high pattern accuracy can be provided.

  Although there is no limitation in particular about the method of setting it in the atmosphere of 23 +/- 2 degreeC and 45 +/- 5% RH, it can convey in the state by which the air-conditioning management was carried out by the said air conditioner etc.

  Although the packaging body of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications may be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 10 Packing body 20 Patterned film 21 Sheet-fed resin film 22 Pattern 30 Packing material 40 Heat insulating material 200 Rolled film with pattern 201 Core 202 Continuous resin film 205 Gap member

Claims (3)

In a package formed by sealing a film with a pattern in which a pattern is formed on a resin film with a packing material,
The patterned film is a roll-shaped film with a pattern in which a predetermined pattern is provided on a continuous resin film, and this is wound around a core,
The roll film with a pattern is a roll film with a pattern in which a gap member is partially disposed on the resin film, and the resin film is wound together with the gap member,
The gap member is a concavo-convex-shaped gap member in which irregularities are formed on at least one surface, the height of the convex part is 0.01 mm to 1.5 mm, and the distance between adjacent convex parts is Is 0.01 mm to 4 mm,
The packing material has a moisture-proof performance with a water vapor permeability of 1.0 g / m ² · 24 hr · MPa or less at a temperature of 40 ° C. and a relative humidity of 90%.   The packaging body according to claim 1, wherein a part or all of the surface of the packaging material is covered with a heat insulating material. The patterned film is a roll-shaped film with a pattern in which a predetermined pattern is provided on a continuous resin film, and this is wound around a core,
The length direction both ends of the core of the roll film with a pattern are supported by a support, and the roll film with a pattern is sealed in a state of floating in a package. The package according to 1 or 2.

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