CN100526172C - Moistureproof packaging method for acrylic acid resin plate - Google Patents
Moistureproof packaging method for acrylic acid resin plate Download PDFInfo
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- CN100526172C CN100526172C CNB2004100913389A CN200410091338A CN100526172C CN 100526172 C CN100526172 C CN 100526172C CN B2004100913389 A CNB2004100913389 A CN B2004100913389A CN 200410091338 A CN200410091338 A CN 200410091338A CN 100526172 C CN100526172 C CN 100526172C
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- acrylic acid
- acid resin
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Abstract
The invention restrained variations in time passage, such as warpage occurred in an acrylic resin plate using a simple method. A moisture-proof packaging method for the acrylic resin plate, wherein two or more acrylic resin plates 1 are piled and wrapped with a synthetic resin film 3 (film consisting of a polypropylene type or a polyethylene type material or the like), is provided. The moisture-vapor transmission of the synthetic resin film 3 is preferably 2.5 g/m<SP>2</SP>24h or lower. When a moisture-proof protective sheet 2 is place on the top and under the bottom of the piled acrylic resin plates 1, the moisture-vapor transmission of the moisture-proof protective sheet 2 is preferably 2.0 g/m<SP>2</SP>24h or lower.
Description
Technical field
Even the present invention is about a kind of moistureproof packaging method that also can not occur the acrylic acid resin plate of problems such as curling under the situation of long-term keeping.
Background technology
Acrylic acid resin plate is because excellent optical characteristics often is used to camera lens, automobile component, illuminace component, various electronic consoles etc.In recent years, also as the LGP as telltales such as Liquid Crystal Display (LCD)s, demand is increased sharply.
These acrylic acid resin plates can pass through, for example, with reference to patent documentation 1 special fair 4-75241 communique etc. in the composite that constitutes by imperplex and methyl methacrylate, add the cast polymerization method of multifunctional (methyl) acrylate, perhaps for example open clear 52-94362 communique etc. with reference to patent documentation 2 spies, use board-like continuous plate device, descend the space base feed between the metallic endless belt thereon, the continuous casting process of heating, polymer resin raw material is made when transporting with endless belt.In addition, also can publish with reference to the high work of non-patent literature 1 superficial view " plastic material lecture 12 acrylic resins " Nikkan Kogyo Shimbun, clear and 45 years, the employing extrusion process preparation of p30-31 etc., that is, use screw extruder etc., the acrylic polymer of the heating and melting die head from the extrusion press front end is launched to squeeze out with sheet, make its cooling between roller etc., solidify, make resin board.
The acrylic acid resin plate that makes like this can be transferred and keeping during requiring as product.If when taking care of for a long time, because moisture absorption, the resin board shape has the situation that camber etc. changes in time that produces.If acrylic acid resin plate produces alteration of form, not only just value of the product descends, and in various uses particularly when the purposes of precision prescribed, on product, can become very big problem.
Summary of the invention
The present invention forms for solving above-mentioned the problems of the prior art.That is, the objective of the invention is, be suppressed at the problem that camber of generating on the acrylic acid resin plate etc. changes in time by simple method.
The present invention loads most acrylic acid resin plates, packs the moistureproof packaging method of acrylic acid resin plate with synthetic resin film.
By the present invention, can on acrylic acid resin plate, produce moisture-proof role, thus the problem that camber that can prevent resin board etc. changes in time.
Best mode of the invention process
Fig. 1 is the section drawing of expression one embodiment of the present invention.As shown in Figure 1, load a plurality of acrylic acid resin plates 1, and they are packed, can reach moisture effect with synthetic resin film 3.The method of packing with synthetic resin film 3 is not particularly limited, and can adopt the entire package that can reach moisture effect.For example, adopt candy wrapping method etc.When packing with synthetic resin film 3, the lap of film is preferably by Continuous pressing device for stereo-pattern leak free sealed package.The adhesive tape of Shi Yonging can be commercially available general adhesive tape herein.Preferred adhesive surface is a natural rubber class adhesives.
Above-mentioned polypropylene (PP), polyethylene polyolefinss such as (PE) raw material, polyethylene terephthalate (PET), polyamide fibre (NY) class raw material etc. all suit as the ground of the synthetic resin film that contains metallic membrane.These, can enumerate, with on the polyethylene terephthalate ground with the synthetic resin film of aluminium-vapour deposition, on the polyethylene terephthalate ground with the film of aluminium oxide evaporation and on the polyamide fibre ground with the synthetic resin film of the film laminating preparation of aluminium-vapour deposition etc.Specifically, contain the moisture permeability of the synthetic resin film 3 of metallic membrane, under used thickness, preferably smaller or equal to 1.5g/m
224h is more preferably less than and equals 1.3g/m
224h is especially preferably smaller or equal to 1.1g/m
224h.In addition, the thickness that contains the synthetic resin film of metallic membrane is preferably greater than and equals 30 μ m.
Among Fig. 1, in the top and the bottom of loading the polyacrylic acid resin plate, place the protection thin plate of being made up of corrugated board etc. 2, under its end curved inwardly folding state, usefulness synthetic resin film 3 was packed.Protect thin plate 2 thus, the damage of synthetic resin film 3 and acrylic acid resin plate 1 in the time of can preventing to pack or carry transportation.If re-use the protection thin plate 2 (moisture protection thin plate) with moisture resistance, then moisture effect further increases.At this moment, the moisture permeability of moisture protection thin plate is preferably smaller or equal to 2.0g/m
224h is more preferably less than and equals 1.5g/m
224h is especially preferably smaller or equal to 1.0g/m
224h.The moisture permeability of this moisture protection thin plate 2, be the same with synthetic resin film 3 be the value that benchmark records with JIS Z0208 condition B.
Moisture protection thin plate 2 preferably contains metallic membrane.This metallic membrane, preference is as with desired metallic material evaporated films that evaporation obtains on ground such as aluminium.Concrete, as can to use the film that contains the metallic membrane that forms by above-mentioned evaporation etc. and desired synthetic resin thin plate and ply of paper pressure to obtain moisture protection thin plate 2.At this moment, for example polyethylene terephthalate (PET) film etc. all suits as the ground of the film that contains metallic membrane.In addition, the thin plate that polypropylene (PP), polyethylene polyolefins raw materials such as (PE) form is suitable to synthetic resin board, especially preferred expanded polypropylene thin plate, polyethylene foamed thin plate.Also can use craft paper, sheet lining etc.
Among Fig. 1,, place corrugated board in packaging body top and bottom with synthetic resin film 3 packing acrylic acid resin plates 1.Such use corrugated board 4 can prevent the damage when acrylic acid resin plate 1 transports simply.In addition, this packaging body is loaded in the top of backing plate 5, transports also very convenient.The kind of backing plate 5 does not have particular restriction, and wooden pallet, resin system backing plate, backing plate made of paper etc. just all can be used by well-known all kinds of backing plates in the past.
In addition, among the present invention, put one or more desiccant in desired positions such as the side of loading acrylic acid resin plate 1, tops, in this state, with synthetic resin film 3 acrylic acid resin plate 1 and desiccant are together packed, more preferably at moisture effect.The kind of desiccant is not particularly limited.For example, can list silica type, magnesium chloride class (commercially available product, ニ ッ ソ one resin (strain) system ニ ッ ソ one dry M series, the made オ ゾ of (strain) オ ゾ chemical research Z series etc.), calcium chloride class desiccant such as (commercially available product, ニ ッ ソ one resin (strain) system ニ ッ ソ one dry C series).
The concrete material of acrylic acid resin plate 1 is not particularly limited.For example, be that the acrylic acid resin plate that primary raw material obtains is suitable for the present invention with the methyl methacrylate.Acrylic acid resin plate like this can pass through, representational, make methyl methacrylate individually, but or the method for the polymerization of mixtures of other monomer composition of methyl methacrylate and copolymerization, or methyl methacrylate class polymer is dissolved in the slurries that form in methyl methacrylate or its compound, the slurries that methyl methacrylate or its compound part prepolymerization form are raw material, and the method that makes it polymerization obtains.
Acrylic acid resin plate 1 for example can be used for, the periphery material of heating such as incandescent lampshade, halogen lamp lampshade light source; The parts of heating such as suit dried machine, micro-wave oven, baking oven household electrical appliance; Optical mirror slips such as eyeglass, helioscope eyeglass, photographic camera camera lens, pick up camera camera lens, eyes protector eyeglass, contact lenses; Vehicle-mounted parts such as instrument mask, vehicle mounted sound appliances parts, vehicle mounted display equipment part, the vehicle mounted navigationsystem parts carrier material of waiting for bus is further used for various display devices such as various display equipment header boards such as plasma display apparatus, LCD device, projection display equipment, Liquid Crystal Display (LCD) LGP.
Description of drawings
Fig. 1 represents the section drawing of an embodiment of the invention.
Fig. 2 illustrates the mode chart of camber evaluation method among the embodiment.
Nomenclature
1. acrylic acid resin plate
2. moisture protection thin plate
3. synthetic resin film
4. corrugated board
5. wooden pallet
The specific embodiment
Embodiment 1
According to following operation, specifically implement the damp proof packing (Fig. 1) of acrylic acid resin plate.
1) on the wooden pallet 5 of long 1400mm, wide 1400mm, high 120mm, spreads the corrugated board 4 of thick 5mm.
2) follow, (B is a benchmark to straight-chain low density polyethylene (L-LDPE) film of shop long 2300mm, wide 3600mm, thick 200 μ m with the JISZ0208 condition, and the moisture permeability that records is 1.9g/m in the above
224h; The moisture permeability that writes down is below also all measured under the same conditions) as synthetic resin film 3.
3) then, spread the moisture protection thin plate of long 1400mm, wide 1400mm in the above as protection thin plate 2.This protection against the tide preserve moisture layer be with polyethylene foamed (PE) thin plate layer of aluminium-vapour deposition polyethylene terephthalate (PET) film and thick 2mm suppress the thin plate with anti-soak properties (thickness of aluminium-vapour deposition is 2.0nm), PET12 μ m/PE15 μ m/ foam PE2mm, moisture permeability 0.5g/m
224h.
4) pile up as the crow flies in the above again stack 56 long 1380mm, wide 1200mm, thick 8mm acrylic acid resin plate (the beautiful sun of Mitsubishi (strain) system, trade name ア Network リ ラ イ ト L#001) as acrylic acid resin plate 1.In addition, this acrylic acid resin plate uses the two sides to post the protective film of thick 90 μ m (eastern レ built up membrane (strain) system, ト レ テ ッ Network 7131).
5) follow, in the above shop and top the same protection thin plate 2 (moisture protection thin plate).
6) after this, place the desiccant (ニ ッ ソ-resin (strain) system, trade name ニ ッ ソ one dry M (100g packing)) that adds up to 4 in the side of loading acrylic acid resin plate 1.
7) then, by being layered on the synthetic resin film 3 under the acrylic acid resin plate 1 in advance, will contain 4 sides and the top parcel, folding of having piled up acrylic acid resin plate 1, protection thin plate 2 and desiccant on one side.At this moment, protection thin plate 2 up and down bends to the inside by the part that the face with acrylic acid resin plate 1 does not contact, and makes 8 angle discord synthetic resin film 3 polyethylene film direct contacts, synthetic resin films 3 loading acrylic acid resin plate 1 avoid damaging.
8) then, the lap after synthetic resin film 3 packings is by using adhesive tape (ニ チ バ Application (strain) system, trade name カ-ト Application adhesive tape, bale packing NO.660, wide 50mm) sealing, airtight package.
9) as above the packaging body of damp proof packing places iron warehouse, after on July 1st, 2003 beginning to take care of 100 days, 200 days, unpacks, estimates the curling situation of acrylic acid resin plate 1.Warehouse between preservation period, initial 100 days is the atmosphere of 30 ℃ of mean temperatures, average relative humidity 75%RH, 100 days of the back is 12 ℃ of mean temperatures, the atmosphere of average relative humidity 76%RH.
This evaluation method is by extracting the top and the nethermost plate of the loading acrylic acid resin plate that produces the maximum camber variation out, concrete grammar as shown in Figure 2, along long side direction, the short side direction backguy of acrylic acid resin plate, measure the clearance distance A, the B that produce between line and resin board and carry out.With the maxim among clearance distance A, the B of uppermost resin board and nethermost resin board as evaluation result.In addition, bundle temperature ﹠ relative humidity indicator (ダ バ イ エ ス ペ ッ Network (strain) is produced, trade name temperature recorder-RS-11) in advance simultaneously in the inside of packaging body, measure internal relative humidity over time.The result is displayed in Table 1.
Use low density polyethylene (LDPE) (LDPE) film (the moisture permeability 2.3g/m of identical size, thickness
224h) replace straight-chain low density polyethylene (L-LDPE) film, as synthetic resin film 3, and with the thin plate with anti-soak properties that makes at sheet lining upper strata jewelling evaporated film (aluminium-vapour deposition thickness be 2.0nm) PET12 μ m/PE20 μ m/K sheet lining 280gm
2/ PE20 μ m, moisture permeability 0.6g/m
224h) as outside the moisture-proof protective film 2, all the other all with embodiment 1 in the same, carry out damp proof packing, take care of together, estimate with the packaging body among the embodiment 1.The result is illustrated in the table 1.
Use the same corrugated board (the moisture permeability 2000g/m that spreads above with wooden pallet 5
224h) replace the moisture protection thin plate as outside the protection thin plate 2, all the other are all the same with embodiment 1, and the packaging body that carries out among damp proof packing and the embodiment 1 is taken care of together, estimated.The result is illustrated in the table 1.
Use onesize low density polyethylene (LDPE) (LDPE) film to replace straight-chain low density polyethylene (L-LDPE) film as synthetic resin film 3; and use replaces the moisture protection thin plate as outside the protection thin plate 2 with the same corrugated board that wooden pallet 5 is spread above; all the other all with embodiment 1 in the same, the packaging body that carries out among damp proof packing and the embodiment 1 is taken care of together, is estimated.The result is illustrated in the table 1.
Use film (the moisture permeability 1.1g/m of the thick 112 μ m of LDPE 100 μ m/ aluminium oxide evaporation (0.8nm) PET12 μ m formation
224h) as outside the synthetic resin film 3, all the other all with embodiment 1 in the same, the packaging body that carries out among damp proof packing and the embodiment 1 is taken care of together, is estimated.The result is illustrated in the table 2.
Embodiment 6
Use film (the moisture permeability 0.5g/m of the thick 84 μ m of LLDPE 20 μ m/LDPE 20 μ m/ aluminium-vapour deposition (0.8nm) PET 12 μ m/LDPE 20 μ m/ aluminium-vapour deposition (0.8nm) PET12 μ m formation
224h) as outside the synthetic resin film 3, all the other all with embodiment 1 in the same, the packaging body that carries out among damp proof packing and the embodiment 1 is taken care of together, is estimated.The result is illustrated in the table 2.
Embodiment 7
Use film (the moisture permeability 0.5g/m of the thick 87 μ m of the centrifugal polyamide fibre 15 μ m/LLDPE30 μ m formation of LLDPE 30 μ m/ aluminium oxide evaporation (0.8nm) PET 12 μ m/ aluminium oxide evaporation (1.2nm) diaxons
224h) as outside the synthetic resin film 3, all the other all with embodiment 1 in the same, the packaging body that carries out among damp proof packing and the embodiment 1 is taken care of together, is estimated.The result is illustrated in the table 2.
Embodiment 8
Use film (the moisture permeability 1.0g/m of the thick 57 μ m of the centrifugal polyamide fibre 15 μ m/LLDPE30 μ m formation of two sides aluminium oxide evaporation (2.0nm) PET12 μ m/ aluminium oxide evaporation (1.2nm) diaxon
224h) as outside the synthetic resin film 3, all the other all with embodiment 1 in the same, the packaging body that carries out among damp proof packing and the embodiment 1 is taken care of together, is estimated.The result is illustrated in the table 2.
Reference examples 1
Do not use moisture protection thin plate 2 and synthetic resin film 3, also do not place outside the desiccant, the packaging body among all the other all the same with embodiment 1 and embodiment 1 is taken care of together, is estimated.The result is illustrated in the table 1.Owing to do not pack the relative humidity in the average relative humidity of air replaces packing during the scorekeeping.
The evaluation result of table 1 damp proof packing
The evaluation result of table 2 damp proof packing
Claims (15)
1. acrylic acid resin plate moistureproof packaging method; it is characterized in that; load a plurality of acrylic acid resin plates; pack with synthetic resin film; loading a plurality of acrylic acid resin plates, when packing, packing with the state of placing the moisture protection thin plate in the top of having loaded resin board and bottom with synthetic resin film.
2. according to the moistureproof packaging method of the acrylic acid resin plate described in the claim 1, the moisture permeability of synthetic resin film is smaller or equal to 2.5g/m
224h.
3. according to the moistureproof packaging method of the acrylic acid resin plate described in the claim 2, synthetic resin film is made by the polyolefins material.
4. according to the moistureproof packaging method of the acrylic acid resin plate described in the claim 3, synthetic resin film is made by polypropylene type or polyethylene kind material.
5. according to the moistureproof packaging method of the acrylic acid resin plate described in the claim 3, synthetic resin film is made by straight-chain low density polyethylene.
6. according to the moistureproof packaging method of the acrylic acid resin plate described in the claim 1, the thickness of synthetic resin film is more than or equal to 160 μ m.
7. according to the moistureproof packaging method of the acrylic acid resin plate described in the claim 1, synthetic resin film contains metallic membrane.
8. according to the moistureproof packaging method of the acrylic acid resin plate described in the claim 7, the moisture permeability of moisture protection thin plate is smaller or equal to 2.0g/m
224h.
9. according to the moistureproof packaging method of the acrylic acid resin plate described in the claim 7, the moisture protection thin plate contains metallic membrane.
10. according to the moistureproof packaging method of the acrylic acid resin plate described in the claim 9, metallic membrane is the metal evaporation film.
11. according to the moistureproof packaging method of the acrylic acid resin plate described in the claim 9, metallic membrane is the aluminium-vapour deposition film.
12. according to the moistureproof packaging method of the acrylic acid resin plate described in the claim 9, the moisture protection thin plate is by the film that will contain metallic membrane and the synthetic resin thin plate is stacked makes.
13. according to the moistureproof packaging method of the acrylic acid resin plate described in the claim 12, the synthetic resin thin plate is made by polypropylene type or polyethylene kind material.
14. according to the moistureproof packaging method of the acrylic acid resin plate described in the claim 13, the synthetic resin thin plate is expanded polypropylene thin plate or polyethylene foamed thin plate.
15., loading a plurality of acrylic acid resin plates, when packing, packing together with desiccant with synthetic resin film according to the moistureproof packaging method of the acrylic acid resin plate described in the claim 7.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003392270 | 2003-11-21 | ||
| JP2003392270 | 2003-11-21 |
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| CN1629053A CN1629053A (en) | 2005-06-22 |
| CN100526172C true CN100526172C (en) | 2009-08-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102161404A (en) * | 2010-02-19 | 2011-08-24 | 住友化学株式会社 | Packing method for resin plate and packing object |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104528105A (en) * | 2015-02-06 | 2015-04-22 | 常熟市梅李镇赵市永宏红木家具厂 | Cabinet type redwood furniture packaging structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102161404A (en) * | 2010-02-19 | 2011-08-24 | 住友化学株式会社 | Packing method for resin plate and packing object |
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| CN1629053A (en) | 2005-06-22 |
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Address after: Tokyo, Japan, Japan Patentee after: Mitsubishi Kasei Corporation Address before: Tokyo, Japan, Japan Patentee before: Mitsubishi Reiyon Co., Ltd. |
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