CN1355127A - Packing component of flat bed press plat and internal packing material of flat bed press plat - Google Patents
Packing component of flat bed press plat and internal packing material of flat bed press plat Download PDFInfo
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- CN1355127A CN1355127A CN 00133336 CN00133336A CN1355127A CN 1355127 A CN1355127 A CN 1355127A CN 00133336 CN00133336 CN 00133336 CN 00133336 A CN00133336 A CN 00133336A CN 1355127 A CN1355127 A CN 1355127A
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Abstract
A packaging member for planographic plates and the internal package material for the said planographic plates are disclosed, and they can protect the planographic plates from being damaged by external force, light and moisture. A stack of planographic plates is packaged by the said internal package material which has low light transmission coefficient, and then contained in the said packaging member for providing further protection. The packaging member has a predefined strength and thermal insulating property.
Description
The present invention relates to a kind of packaging element and a kind of inner packaging material that is used for lithographic plate of lithographic plate.Especially, the present invention relates to a kind of like this packaging element of lithographic plate and a kind of like this inner packaging material that is used for lithographic plate, the packaging element that is this lithographic plate can block extraneous light for lithographic plate, and can protect this forme to make it not be subjected to the external force effect; This inner packaging material that is used for lithographic plate can block extraneous light for lithographic plate, and can carry out inner packing to this forme.
In recent years, in the manufacture method of scan plate,, extensively adopted lithographic plate, for example photosensitive forme or temperature-sensitive forme for the ease of the automation of scan plate manufacturing process.Photosensitive forme has very high sensivity to light, even this photosensitive forme is exposed under the interior light of a spot of visible light wave range, the light sensitive layer of this forme is changed.Therefore, photosensitive forme need be by shading.Similarly, in the temperature-sensitive forme, the heat energy that is radiated at the light on the forme can make heat-sensitive layer become bad, or is changed its sensitivity by reaction process.Therefore, preferred scheme is that the temperature-sensitive forme is by suitably shading.In addition,, will have such defective so if photosensitive forme or temperature-sensitive forme suffer the quick variation of humidity and temperature, for example can be on light sensitive layer or heat-sensitive layer dew, thereby make light sensitive layer or heat-sensitive layer become bad.Therefore, need to keep not having moisture on these formes.
Therefore, from making lithographic plate in these formes are packed into automatic plate making machine or similar machine, lithographic plate is packaged in the inner packing paper with shading performance and moisture-proof characteristic (that is to say, make the forme of packaging not have moisture).As inner packing paper, for example can adopt the aluminium craft paper, in this aluminium craft paper, low-density polyethylene is melted and is that 13um is bonded on the craft paper with thickness, and then encloses the aluminium foil that thickness is 6um.One folded product (a folded lithographic plate) is packaged in the aluminium craft paper, then, the some parts of aluminium craft paper (so-called ear shape partial sum top surface part) is coupled together with an adhesive tape or other connecting device.In addition, as inner packing paper, can also adopt a kind of like this paper, promptly in this paper, the low density polyethylene (LDPE) that thickness is about 10～70um sticks on the aluminium foil of this aluminium craft paper, or adopts a kind of like this paper, promptly in this paper, adhering to thickness on this low density polyethylene (LDPE) again is the black polyethylene film of 70um, to increase shading performance and moisture-proof characteristic.
Yet this aluminium craft paper be in case by being used, so just can not recycle it, and owing to must be used as industrial refuse to these paper and throw away or incinerate etc., therefore need very high cost handle.
On the other hand, a kind of shading water-proof paper that has required shading moisture-proof characteristic and be not stained with aluminium foil has been proposed use (seeing Japanese Patent Application Publication (JP-A) No.9-111697).Yet this shading water-proof paper is very expensive, and this is because a light shield layer and a damp course must be set on the surface of this paper.
In addition, each photosensitive forme and temperature-sensitive forme are manufactured into a single thin version, therefore, if having defective or distortion on the angle of version or on the limit or inside, so just go wrong easily.For example, after exposure, take place to develop or be subjected to heat effect and when developing, image will be unintelligible, or when being printed as image, China ink is inhomogeneous when version.
Therefore, in order to prevent these defectives and distortion, a kind of corrugated board box (seeing Japanese Patent Application Publication (JP-A) No.10-16946) is used in suggestion, and it can protect lithographic plate not to be subjected to the external force effect, and forme is packed.
As shown in figure 10, in a corrugated board box 50, triangle tubulose body 54 is to form by the relative edge who connects bottom panel 52, therefore, can keep bottom panel 52 perpendicular to side panel 56 and panel 58 securely.The made in this way corrugated board box that causes just can not be owing to the weight of the thing of adorning in the box has been out of shape.
Yet in this corrugated board box 50, light can be from going into to shine near the connecting bridge of triangle tubulose body 54, corrugated cardboard etc.Therefore, in the time of in lithographic plate is installed in corrugated board box 50, the danger of so-called accidental exposure (exposing) will take place in lithographic plate.
Consider the above-mentioned fact, goal of the invention of the present invention is a kind of inner packaging material that will obtain a kind of packaging element of lithographic plate and be used for lithographic plate, packaging element wherein can protect lithographic plate not to be subjected to the external force effect reliably, can be the lithographic plate shading, make forme not have moisture, and can be handled cheaply by easy and expense; Inner packaging material wherein can be the lithographic plate shading reliably.
A first aspect of the present invention is the packaging element of lithographic plate, and this member comprises: an inner packaging material, it be by a kind of have a predetermined penetrability or more the material of low light transmission degree make, it carries out inner packing to lithographic plate; A housing material, it is to being carried out external packing by the lithographic plate of inner packing in inner packaging material, and it has stronger rigidity than inner packaging material.
That is to say, being had in the housing material of stronger rigidity than inner packaging material by the lithographic plate external packing of inner packing in inner packaging material.Therefore, can protect lithographic plate not to be subjected to the external force effect, thereby forme can be out of shape, can defectiveness yet.
Housing material itself can be the lithographic plate shading to a certain extent, and makes forme keep not being subjected to influence of moisture.So, under by the state of external packing in housing material, have only very a spot of light to enter its inside by very little gap.
Since lithographic plate by inner packing in inner packaging material, this inner packaging material be by a kind of have a predetermined penetrability or more the material of low light transmission degree constitute, even this light leak is arranged, light can not arrive lithographic plate yet, therefore, just prevented that the light sensitive layer of lithographic plate or heat-sensitive layer from changing.
In addition, even if great changes will take place in the outside humidity of housing material, it also is very little changing at the interior humidity of housing material, and this is because housing material has played the effect of isolation layer.In the inside of inner packaging material, the little variation of housing material interior humidity has further been isolated.Therefore, with regard to can in lithographic plate, not produce by humidity change caused such as problems such as dews, thereby just can not make light sensitive layer or the heat-sensitive layer become bad yet.
In this mode, utilize the combination of inner packaging material and housing material, can be lithographic plate shading and damp proof reliably just, thereby make that the quality of forme is unaffected.As inner packaging material, can adopt any have a predetermined penetrability or the material of low light transmission degree more.Therefore, can adopt easily processed common paper or analogue,, therefore, make that the Packing Fee of lithographic plate is very low to replace traditional aluminium craft paper or analogue.
As long as satisfy above-mentioned condition, the material that is used to form inner packaging material is not particularly limited.For example, the common paper that can be recovered utilization can preferentially be selected for use.The result is that owing to can be recovered utilization with the inner packaging material of crossing, therefore, lithographic plate can be had no the resource of waste ground and pack.The example that can be recovered the common paper of utilization comprises the common paper of so recyclable utilization, does not promptly have a special one deck or the member with shading or damp proof effect that be provided with or adhere on this paper.
According in the sensitivity of the light sensitive layer of lithographic plate or heat-sensitive layer, the inner packaging material by the gap filter into light intensity wait to determine the concrete numerical value of the penetrability of inner packaging material.Yet preferred scheme is, utilizes with respect to wavelength to be 910nm or short wavelength's light more, and penetrability is 57% or the inner packaging material of littler penetrability, just can be to being carried out shading more reliably by the lithographic plate of inner packing.
About penetrability, if lithographic plate by the state of inner packing in inner packaging material under, the overall transmittance of inner packaging material satisfies above-mentioned value, does not so just have problem.For example, with respect to wavelength is 910nm or short wavelength's light more, even certain one deck inner packaging material, its penetrability may reach 57% or higher, if but lithographic plate is packed with the multilayer inner packaging material, make that under the inner packing state synthetic penetrability is 57% or lower, does not so just have problem.That is to say, with respect to wavelength is the light of 910nm or shorter wavelength, even having, mono-one deck inner packaging material reaches 57% or higher penetrability, if but each penetrability all is determined like this, by using the multilayer inner packaging material to make that synthetic penetrability is 57% or lower, so, here " inner packaging material " of indication just comprises all these inner packaging materials.
As long as housing material has higher rigidity than inner packaging material, can protect lithographic plate not to be subjected to the external force effect, thereby make it can not be out of shape or make it can defectiveness, the material that is used to form housing material so is not particularly limited.For example, housing material can be made by corrugated cardboard.So just can prevent from reliably to be subjected to the external force effect, thereby the defective or the distortion of the plate quality that can not exert an influence through the lithographic plate of inner packing.In addition, the combination of housing material and inner packaging material can be guaranteed required shading moisture-proof characteristic reliably, thereby makes the quality of forme unaffected.Because common corrugated cardboard can be used as housing material, therefore, the Packing Fee of lithographic plate is also very low.
A second aspect of the present invention is a kind of inner packaging material that is used for lithographic plate is carried out inner packing, wherein, is 910nm or short wavelength's light more with respect to wavelength, and the penetrability of inner packaging material is 57% or lower.
Therefore, by inner packaging material being used for the packaging element of above-mentioned lithographic plate, just can carry out shading to lithographic plate reliably.
In addition, according to a second aspect of the invention, be used for the inner packaging material of lithographic plate, for penetrability, if lithographic plate is under by the state of inner packing in inner packaging material, the total transmittancy of inner packaging material satisfies above-mentioned value, so just can not have problems.For example, with respect to wavelength is 910nm or short wavelength's light more, even single layer inner packaging material can have 57% penetrability or higher, if but lithographic plate by inner packing in the multilayer inner packaging material, making overall transmittance is 57% or lower, and these inner packaging materials are also included within the inner packaging material that is used for lithographic plate according to second aspect present invention so.In other words, with respect to wavelength is 910nm or short wavelength's light more, even single layer inner packaging material can have 57% penetrability or higher, if but each penetrability limits like this, promptly by using the multilayer inner packaging material to make synthetic penetrability reach 57% or lower, so, " inner packaging material " here mentioned just comprises all these inner packaging materials.Under the situation of lithographic plate inner packing in the multilayer inner packaging material, the inner packaging material that not only can use each layer inner packaging material wherein to have identical penetrability, but also the inner packaging material that can use each layer inner packaging material wherein to have different penetrabilitys.The number of plies for inner packaging material does not limit especially.But less for the number of plies that can make inner packing, for the ease of the operation of carrying out inner packing and the operation of unpacking or the like, preferred scheme is that about two to four layers of inner packaging material are superimposed together.
Fig. 1 is a schematic perspective view, has expressed among the figure in according to one embodiment of present invention, lithographic plate inner packing step in this process in the packaging element of lithographic plate.
Fig. 2 is a schematic perspective view, has expressed among the figure in an embodiment according to the present invention, lithographic plate inner packing step in this process in the packaging element of lithographic plate.
Fig. 3 is a schematic perspective view, has expressed among the figure in an embodiment according to the present invention, lithographic plate inner packing step in this process in the packaging element of lithographic plate.
Fig. 4 is a schematic perspective view, has expressed among the figure in an embodiment according to the present invention, lithographic plate inner packing this state in the packaging element of lithographic plate.
Fig. 5 is a schematic perspective view, has expressed among the figure in an embodiment according to the present invention, a step in this process in the packaging element of lithographic plate external packing at lithographic plate of inner packing.
Fig. 6 is a schematic perspective view, has expressed among the figure in an embodiment according to the present invention, this state in the packaging element of lithographic plate external packing at lithographic plate of inner packing.
Fig. 7 is a schematic perspective view, expressed among the figure in an embodiment according to the present invention, lithographic plate external packing through inner packing is being different from the housing material of housing material shown in Figure 6, thereby it is being packaged in this state in the packaging element of lithographic plate.
Fig. 8 is the expansion drawing of housing material shown in Figure 7.
Fig. 9 is illustrated in some embodiments of the present invention and the comparing embodiment, the relation between the penetrability of wavelength and inner packing paper.
Figure 10 represents the schematic perspective view of traditional corrugated board box.
In Fig. 1～4, expressed one embodiment of the present of invention, folded 12 lithographic plates 10 are packaged in a process in the inner packing paper 16.In Fig. 5 and Fig. 6, expression according to this embodiment of the invention, the folded 12 further external packings in inner packing paper 16 of inner packing in a housing material 18.The packaging element 20 of lithographic plate (being designated hereinafter simply as " packaging element ") is made of inner packing paper 16 and housing material 18 among the present invention.
By a light sensitive layer (if the temperature-sensitive forme, then being heat-sensitive layer) is adhered on the thin aluminium strut member of a rectangle version shape, thereby form lithographic plate.As Fig. 1 can see; on thickness direction; by alternately stacked, and on this folded upper space and lowest surface, place a protection cardboard 22 again, so just constituted folded 12 of lithographic plate 10 an interlayer 14 of lithographic plate 10 and protection light sensitive layer.The number that constitutes one folded 12 lithographic plate 10 is not particularly limited.But, consider factors such as conveying efficiency, storage, this number can be 10～100.Folded 12 the time when being formed by 10～100 layers of lithographic plate 10 by this way, preferred scheme is by the connecting device such as adhesive tape 24 lithographic plate 10 and protection cardboard 22 to be connected with each other, thereby to guarantee not chaotic.In addition, folded 12 can also be made of more lithographic plate 10, thereby can more effectively transport and store these formes (number of times of execution processing still less).For example, the number maximum of lithographic plate 10 can be about 1500, and per 20～100 layers of lithographic plate 10 just can be placed protection cardboard 22.In addition, the number maximum of lithographic plate 10 can about 1500, and only place protection cardboard 22 on folded upper space and lowest surface.In addition, according to the type of lithographic plate 10, interlayer 14 and/or protection cardboard 22 can be removed.
The long limit 16L of inner packing paper 16 has the predetermined length that can realize following process.As shown in Figure 2, folded 12 are placed to the approximate center of inner packing paper 16, and feasible folded 12 long limit 12L is parallel to the minor face 16S of inner packing paper 16.Then, two minor face 16S of inner packing paper 16 fold along folded 12 long limit 12L, make the minor face 16S of inner packing paper 16 (see figure 3) of overlapping mutually.
In addition, the minor face 16S of inner packing paper 16 has the predetermined length that can realize following process.Under near the mutual partly overlapping state minor face 16S, the inner packing paper 16 of long limit 16L side is further folded, and makes when see in planar view, and long limit 16L partly overlaps (see figure 3) on folded 12 the top surface.In this way, as shown in Figure 4, folded 12 by inner packing in inner packing paper 16.The result is that folded 12 are encapsulated in the inner packing paper 16 fully.At last, stick with glue and be with 24 inner packing paper 16 to tie up at preposition and be fixed, thereby make its not unfolded or unexpected slippage.
Clearly, member shown in Figure 4 is to be used for folded a kind of member of 12 inner packings in inner packing paper 16, and the present invention is not limited to this member.In other words, by combine with housing material 18 (will be described in the back for housing material), be encapsulated in the inner packing paper 16 folding 12, as long as to lithographic plate 10 shading and damp proof reliably, other member also is operable.
As shown in Figure 5 and Figure 6, housing material 18 usefulness corrugated cardboards are made, and are made into a corrugated board box, and the internal dimensions size that this corrugated board box had can be held one or more through folded 12 of inner packing.Therefore, under folded 12 states that are contained in the corrugated board box of inner packing, corrugated cardboard is positioned in folded 12 periphery through inner packing, therefore at transportation and memory period, even object is arranged from the external impact corrugated cardboard, the energy of bump has also been absorbed by this corrugated cardboard.In addition, stopped by corrugated cardboard from the outside next light of corrugated board box, just become very faint (being to have only from the connecting portion of the corrugated cardboard light of coming in that grades just to arrive this inner packing paper 16 basically) so arrive the light of inner packing paper 16.And corrugated board box is also as an isolation layer, and to resist outer humidity and the variation of temperature that takes place of corrugated board box, therefore, corrugated board box humidity inside and variation of temperature are less than exterior variation.
Preferred scheme is to utilize not shown connection mode (for example adhesive tape, tack or bandage) that the top of corrugated board box is fixed, so that do not allow its accident open.
Fig. 5 and Fig. 6 have expressed an example, in this example, have only adorned one folded 12.But many folded 12 the time when adorning, can be constructed such that can be by placed side by side on any directions in these many folded 12 length directions at housing material 18, Width and short transverses for housing material (corrugated board box) 18 so.In addition, on the internal dimensions size of corrugated board box, even the gap of the 100mm that has an appointment between corrugated board box and folded 12 can in use not have problems yet.Yet, more preferred scheme is, make corrugated board box in-to-in length, width and height and folded 12 length, width and highly consistent to be installed (if be equipped with many folded 12 through inner packing, so just with all folded 12 length, width and highly consistent), thus the accidental shifting or the turmoil of folded 12 in the corrugated board box can be prevented.
Type to corrugated board box is not particularly limited, can use any in the type below in JISZ1507, limiting: grooved box (code name 0200-0216), the box of concertina type (code name 0300-0325), folded box (code name 0401-0435), gliding style box (code name 0501-0511), Bai Lisi (Bliss) box (code name 0601-0608), easily sticking formula box (code name 0712-0711).But; because code name is 0200; 0422-0435; the top surface of the corrugated board box of 0501-0503 and 0771 type opens wide; therefore, that adorns in order to protect folded 12 is not subjected to the external force effect, and in order to carry out shading and damp proof to folded 12; preferred scheme is not use these boxes, can be fully such box of folded 12 encapsulation and be to use.
In addition, can also use corrugated board box 110 with structure shown in Figure 7.
In this corrugated board box 110, as seeing in the expansion drawing shown in Figure 8, bottom surface layer pressing plate 116 and top coat pressing plate 118 are separately positioned near the minor face of bottom panel 112 and top panel 114.Many fold lines 120 are set on bottom surface layer pressing plate 116 and top coat pressing plate 118, and spiral laminated portion 122 as shown in Figure 7 and 124 forms by folding along 120 pairs of plates of fold line.Therefore,, also can protect reliably to constitute folded 12 lithographic plate 10, prevent to cause the distortion of quality problems or the formation of defective even apply a very big power from the outside to corrugated board box 110.
To be described the packaging element in the present embodiment 20 below.
As shown in Figure 6, be used as the corrugated cardboard of the corrugated board box of housing material 18, be fixed on the periphery of folded 12 (lithographic plates 10), wherein folded 12 by inner packing in inner packing paper 16.Therefore, even object is arranged from the external impact corrugated cardboard in transportation and memory period, the energy of bump has also been absorbed by corrugated cardboard.External force does not just act on the lithographic plate 10, if there is external force to act on this lithographic plate 10, external force also has been cushioned (energy has been absorbed) so, thereby distortion or defective have been prevented substantially, therefore, prevented on the bight, limit of lithographic plate 10, inner or other any part deforms or be damaged.The result is, even use this lithographic plate 10 that is packaged in packaging element 20 in after transportation or storage, also can not produce these problems: when forme is exposed the back and generation differentiation or when developing because of being heated, cause not fogging clear; Perhaps when watermark image, China ink is inhomogeneous.So total energy obtains distinct image.
In housing material 18 inside, block from housing material (corrugated board box) light from outside by corrugated cardboard.Therefore, under the folded state of complete external packing in corrugated board box (under the state that is closed at the top of corrugated board box), lithographic plate is to a certain extent by shading, the result makes the light that arrives inner packing paper 16 become very faint (for example, having only the light of filtering into from the gap of corrugated board box just can arrive on the inner packing paper 16).Inner packing paper 16 be by a kind of penetrability be 57% or the more unbleached craft paper of low light transmission degree form, and inner packing paper 16 encapsulates fully and lives foldedly 12, therefore, the faint light that arrives inner packing paper 16 can not arrive the lithographic plate 10 in it.Thereby the light sensitive layer of lithographic plate 10 or heat-sensitive layer can not exposed, thereby can not become bad, can not cause the variation of sensitivity, so just can keep the lithographic plate stabilized quality.
In addition, even change rapidly in housing material 18 exterior humidity and temperature, housing material (corrugated board box) 18 can be resisted humidity and variation of temperature as an isolation layer, therefore, housing material 18 humidity inside and variation of temperature are less than exterior variation.Thereby prevented some defectives, dewfall has for example taken place in the light sensitive layer of lithographic plate 10 or heat-sensitive layer and make its change bad, so make lithographic plate 10 can keep stabilized quality.In addition, except the lithographic plate 10 with interlayer 14 protection light sensitive layers or heat-sensitive layer, interlayer 14 is can unexpectedly not adhere on any lithographic plate 10, therefore, can not disturb the processing of lithographic plate 10.
In the present embodiment, a kind of unbleached paper is used as inner packing paper 16, and utilizes this unbleached paper to combine with housing material (corrugated board box) 18, and lithographic plate is carried out shading and damp proof.When using a kind of so-called aluminium craft paper resembling traditionally, when handling these craft papeies, these craft papeies can not be recovered utilization, just need during processing that craft paper is used as industrial refuse and throw away or incinerate etc.But in the present embodiment, inner packing paper 16 can be recovered utilization as a kind of material of recyclable utilization, so just do not need they are thrown away or incinerate.Therefore, just can handle by easily internal wrapper 16.
In the superincumbent description, though the housing material of corrugated board box member is described as an example of housing material 18,, the specific embodiment of housing material 18 is not limited to corrugated board box.In other words; as long as combine with inner packing paper 16 by housing material 18; carry out external packing to being packaged in folded 12 of lithographic plate 10 in the inner packing paper 16; make that lithographic plate 10 energy shadings are damp proof; and as long as housing material 18 has enough rigidity and intensity; so that can protect lithographic plate 10 not to be subjected to the effect of external force reliably, so just can adopt other material as outer packaging material 18.Preferred scheme is that housing material 18 has higher rigidity than inner packing paper 16 at least.For example, can adopt the box of making by cardboard, or adopt the box of making by the material of honeycomb structure.In addition, housing material 18 can be common timber, resin, metal, cardboard or analogue.
When corrugated board box is used as housing material 18, consider intensity and rigidity, can preferably following member.
At first, the most preferred type of the ripple of corrugated board box is the A groove, secondly is the C groove, the such order of B groove and E groove.The most preferred type of the laminated element of corrugated cardboard is three layers of corrugated paper wooden partition (for example AAA), secondly is multi-ply corrugated paperboard wall (for example AA) and individual layer corrugated paper wooden partition (for example A).
The preceding lining and the most preferred type in the backsight of corrugated cardboard are the AA linings, secondly are the A linings, B lining and C lining.Basis weight in preceding lining and the backsight is at 160～440g/m
2In the scope.The most preferred type of the corrugated media of corrugated cardboard is the corrugated media of strengthening, and secondly is the A corrugated media, B corrugated media and C corrugated media.The basis weight of corrugated media is at 100～280g/m
2In the scope.
When replacing corrugated cardboard with cellular structural material made of paper, preferred scheme be to use with the preceding lining of corrugated cardboard described above, backsight in the preceding lining identical, backsight and corrugated media with corrugated media.
In addition, when replacing corrugated cardboard with cardboard, the basis weight that preferred scheme is a cardboard is at 200～2000g/m
2In the scope.
Generally speaking, corrugated cardboard or honeycombed paper structural materials intensity are big more, and expense is just high more so.Therefore, in order to obtain necessary strength and to make expense relatively low, following scheme is the scheme of comparative optimization.More preferably scheme is: form ripple with A groove or AB groove; Member is A type or AB type; Having basis weight is about 280～180g/m
2The A lining or the B lining be used as before in lining and the backsight; Be about 220～120g/m with the basis weight of strengthening that has
2B or the C corrugated media as corrugated media.
Similarly, inner packing paper 16 also is not limited to unbleached craft paper described above.As long as by combining with housing material 18, can make that the quality of lithographic plate is unaffected reliably for lithographic plate carries out shading and damp proof, just can adopt the paper of other type.Particularly, can adopt and have predetermined penetrability or more colored Si Mili (simili) paper, colored drawing paper, various covering papers, colored kraft paper or the similar paper of low light transmission degree.
Single layer inner packing paper 16 needn't satisfy the printing opacity condition.In other words, even the penetrability of individual layer inner packing paper can be greater than predetermined value, if but being encapsulated in the lithographic plate 10 in the multilayer inner packing paper 16, the overall transmittance of inner packing paper just is essentially predetermined value or lower so.Therefore also can prevent printing opacity, and prevent that the change of light sensitive layer or heat-sensitive layer is bad.Under the situation of using multilayer inner packing paper, internally the number of plies of wrapper 16 is not particularly limited.But, consider and use the inner packing paper 16 of the less number of plies just can realize inner packing that consider carrying out or the analogue of being convenient to the inner packing operation and the operation of unpacking, preferred scheme is to overlap with two to four layers of inner packing paper 16.
Below, by way of example form is at length described the present invention, however, below the present invention is not limited to for example.
In this example, (thickness is 0.3mm an aluminium roll bending; Width is 1310mm) put into a lithographic plate maker and be transmitted, machinery or chemical treatment are carried out in its surface, make it have water absorbing properties.Then, adhere to a light sensitive layer (or a heat-sensitive layer) and dry from the teeth outwards, and then adhere to a delustrant, so that in use improve the vacuum draw performance.Then, defective is wherein carried out optical detection, at the defective part place of plate adhesive label, represent this place's defectiveness, and then coiled sheet is got up in a side of the horizontal direction of plate.
The bonding volume of making by this way is temporarily stored on a volume frame.Then,, make gluing of surfaces be positioned on the top, flatten curling by a decurl device (decurler), thereby make it smooth rolling into a finishing machine (finishing machine) and being transmitted.Then, the interlayer 14 that separately transmits is covered on the gluing of surfaces (light sensitive layer or heat-sensitive layer), adhesive sheet and interlayer 14 are bonded together mutually by applying a high potential.As interlayer 14, adopted a kind of like this paper, the basis weight of this paper is 30g/m
2, density is 0.8g/m
3, humidity is 4.5%, and Bai Sike (Beck) smoothness is about 500 seconds (seconds), and pH value is 5.5, and this paper is to be made by the raw MAT'L of the broad leaf tree of 100% bleached pulp type.
Next, with a cutter two ear shapes of plate parts (two end portions transversely) are divided equally incision, thereby make it have a predetermined width (being 1300mm in this example), then, the electrotome that moves with an identical speed with plate cuts off plate, makes it have predetermined length (being 1050mm in this example).The result has just obtained to have the expectation size, and (thickness is 0.3mm; Width is 1300mm; Length is 1050mm) lithographic plate.
In addition, utilize a belt conveyor that lithographic plate 10 is transmitted, the location information of the label that reads during manufacture to be adhered to, so that measure its length, and the lithographic plate 10 that utilizes a switch door knob to have defective is removed.In this way, have only those lithographic plates that do not have defective 10 to continue to transmit, thereby on Width, collect the number (being 50 in the present example) that partial continuous is collected predetermined number one by belt conveyor.At last, on each end face of the overlapping direction of the lithographic plate of collecting 10, place a protection cardboard 22, load folded 12 so that form one.As protection cardboard 22, adopted a kind of like this paper, the basis weight of this paper is 610g/m
2, density is 0.75g/m
3, humidity is 6.5%, and the Beck smoothness is 8 seconds, and pH value is 5.5, and this paper is to be made by a kind of material of recyclable utilization.As shown in Figure 2, protection cardboard 22 is being fixed on the lithographic plate 10 and interlayer 14 of layering on 2 of every relative edge by adhesive tape 24.
As inner packing paper 16, (density is 0.55～0.75g/m to have adopted a kind of unbleached the 3rd type SS-50 craft paper defined in JIS P3401 in example 1
3, humidity is 3～7%, the Beck smoothness is 4～20, pH value is 4～8), (density is 0.55～0.75g/m to have adopted a kind of unbleached first type MS-75 craft paper that limits in JIS P3401 in example 2
3, humidity is 3～7%, the Beck smoothness is 4～20 seconds, pH value is 4～8).As shown in Figure 4, utilize these inner packing paper 16 folded 12 all interior encapsulation.
In addition, a kind of that in JIS, do not limit and have than the unbleached craft paper in above-mentioned example 1 and the example 2 the more not BK bleached kraft of high-transmittance be used as comparing embodiment.As shown in Figure 4, utilize this inner packing paper 16 folded 12 all interior encapsulation.
When the penetrability of these the unbleached craft papeies in example 1 and example 2 and the comparing embodiment is measured in by the range of wavelength of a spectrophotometer by the manufacturing of Hitachi Co., Ltd (model 20A) at 400～910nm, just obtain the value shown in table 1 and Fig. 9 (is impossible measure at 920nm).
As can be known, in example 1, penetrability is 57% when wavelength is 910nm from table and figure, and penetrability is less than 57% when being shorter than the wavelength of 910nm.In addition, in example 2, penetrability was 35% when wavelength was 910nm, and penetrability is less than 35% when being shorter than the wavelength of 910nm.On the other hand, in comparing embodiment, be higher than 57% at the whole range of wavelength iuuminting degree of 500～910nm.
As shown in Figure 7, in this way by inner packing folded 12 by external packing in a corrugated board box 110.Corrugated cardboard as forming corrugated board box 110 has adopted a kind of like this cardboard, and this cardboard has an A groove, the laminar texture of single wall, and (basis weight is 220g/cm in lining and the backsight before A or the B
3) and a C groove medium (basis weight is 180g/cm
3).
Then, the demixing plate 122 and 124 of top panel 114 and corrugated board box 110 is bonded to each other together respectively, so that form a kind of packaging element 20 in this example by hot melt or with polyvinyl acetic acid salt lining cement and kraftpaper tape.
Be placed in distribution depot respectively according to these packaging elements of example 1 and example 2 and comparing embodiment gained and reach four months.Then, these lithographic plates suffer evolution process, and estimate and whether caused so-called accidental exposure.
Table 1:
The light transmittance of each wavelength (%)
| Wavelength (nm) | 400 | ?600 | ?800 | ?900 | ?910 | 920 | Expose |
| Comparing embodiment | 36 | ?76 | ?87 | ?94 | ?83 | Can not measure | Produce |
| Example 1 | 6 | ?34 | ?50 | ?55 | ?57 | Can not measure | Do not produce |
| Example 2 | 1 | ?11 | ?33 | ?34 | 35 | Can not measure | Do not produce |
As can be seen from the above table, when use with respect to wavelength as 910nm or more short wavelength's light have 57% or more (example 1 and example 2) during the inner packing paper 16 of low light transmission degree, can not cause accidental exposure.On the other hand, when being that the light of 910nm has the not BK bleached kraft during as inner packing paper (comparing embodiment) that is higher than 57% penetrability with respect to wavelength, produced accidental exposure.Therefore, preferred scheme is, with respect to wavelength being 910nm or short wavelength's light more, penetrability be 57% or more the paper of low light transmission degree be used as inner packing paper 16.
Particularly, photosensitive forme is usually with respect to being to have sensivity in 550nm or the shorter range of wavelength at wavelength.Consider this point, as seeing among Fig. 9, in example 1 and example 2, the light transmittance in this range of wavelength is 30% or lower.On the other hand, in comparing embodiment, in this range of wavelength, penetrability is higher than 30%.Found that the inner packing paper 16 in example 1 of the present invention and the example 2 can prevent the accidental exposure of photosensitive forme reliably.
The temperature-sensitive forme has sensivity with respect to the light that wavelength is approximately in 700～900nm scope, considers this point, as seeing among Fig. 9, in example 1 and example 2, is 57% or lower at this range of wavelength iuuminting degree.On the other hand, in comparing embodiment, in this range of wavelength, penetrability is higher than 80%.Found that the inner packing paper 16 in example 1 of the present invention and the example 2 also can prevent the accidental exposure of temperature-sensitive forme reliably.
Claims (20)
1, a kind of packaging element of lithographic plate is characterized in that: described member comprises:
One inner packaging material, it by a kind of have predetermined penetrability or more the material of low light transmission degree make, be used for lithographic plate is carried out inner packing;
One housing material, it is to being carried out external packing by the lithographic plate of inner packing in described inner packaging material, and it has higher rigidity than described inner packaging material.
2, a kind of packaging element of lithographic plate according to claim 1 is characterized in that: described inner packaging material is a kind of common paper that can be recovered utilization.
3, a kind of packaging element of lithographic plate according to claim 1, it is characterized in that lithographic plate by the state of inner packing in described inner packaging material under, with respect to wavelength is 910nm or short wavelength's light more, and the penetrability of described inner packaging material is 57% or lower.
4, a kind of packaging element of lithographic plate according to claim 1 is characterized in that described housing material is formed by corrugated cardboard.
5, a kind of packaging element of lithographic plate according to claim 1 is characterized in that described housing material as an isolation layer, to resist the variation of the temperature and humidity that the housing material outside taken place.
6, a kind of packaging element of lithographic plate according to claim 2, it is characterized in that lithographic plate by the state of inner packing in described inner packaging material under, with respect to wavelength is 910nm or short wavelength's light more, and the penetrability of described inner packaging material is 57% or lower.
7, a kind of packaging element of lithographic plate according to claim 2 is characterized in that described housing material made by corrugated cardboard.
8, a kind of packaging element of lithographic plate according to claim 2 is characterized in that described housing material as an isolation layer, to resist the variation of the temperature and humidity that the housing material outside taken place.
9, the packaging element of lithographic plate according to claim 3 is characterized in that described housing material made by corrugated cardboard.
10, the packaging element of lithographic plate according to claim 6 is characterized in that described housing material made by cardboard.
11, a kind of inner packaging material that is used for lithographic plate is carried out the lithographic plate of inner packing is characterized in that with respect to wavelength be 910nm or shorter light, and the penetrability of described inner packaging material is 57% or lower.
12, a kind of inner packaging material of lithographic plate according to claim 11 is characterized in that described inner packaging material is a kind of common paper that can be recovered utilization.
13, a kind of packaging element of lithographic plate is characterized in that: described member comprises:
One inner packaging material, it by a kind of have predetermined penetrability or more the material of low light transmission degree make, be used for lithographic plate is carried out inner packing;
One housing material; it is to being carried out external packing by the lithographic plate of inner packing in described inner packaging material; and it is to be made by a kind of material of the isolation layer as the variation of resisting the temperature and humidity that the housing material outside taken place, so that further protection is through the lithographic plate of inner packing.
14, a kind of packaging element of lithographic plate according to claim 13 is characterized in that described inner packaging material is a kind of common paper that can be recovered utilization.
15, a kind of packaging element of lithographic plate according to claim 13, it is characterized in that lithographic plate by the state of inner packing in described inner packaging material under, with respect to wavelength is 910nm or short wavelength's light more, and the penetrability of described inner packaging material is 57% or lower.
16, a kind of packaging element of lithographic plate according to claim 13 is characterized in that described housing material is formed by corrugated cardboard.
17, a kind of packaging element of lithographic plate according to claim 13 is characterized in that described housing material as an isolation layer, to resist the variation of the temperature and humidity that the housing material outside taken place.
18, a kind of packaging element of lithographic plate according to claim 14, it is characterized in that lithographic plate by the state of inner packing in described inner packaging material under, with respect to wavelength is 910nm or short wavelength's light more, and the penetrability of described inner packaging material is 57% or lower.
19, a kind of packaging element of lithographic plate according to claim 14 is characterized in that described housing material made by corrugated cardboard.
20, a kind of packaging element of lithographic plate according to claim 14 is characterized in that described housing material as an isolation layer, to resist the variation of the temperature and humidity that the housing material outside taken place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00133336 CN1355127A (en) | 2000-11-24 | 2000-11-24 | Packing component of flat bed press plat and internal packing material of flat bed press plat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00133336 CN1355127A (en) | 2000-11-24 | 2000-11-24 | Packing component of flat bed press plat and internal packing material of flat bed press plat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1355127A true CN1355127A (en) | 2002-06-26 |
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ID=4595659
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00133336 Pending CN1355127A (en) | 2000-11-24 | 2000-11-24 | Packing component of flat bed press plat and internal packing material of flat bed press plat |
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|---|---|
| CN (1) | CN1355127A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101146721B (en) * | 2005-03-23 | 2010-04-21 | 富士胶片株式会社 | Packaging arrangement and packaging method |
-
2000
- 2000-11-24 CN CN 00133336 patent/CN1355127A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101146721B (en) * | 2005-03-23 | 2010-04-21 | 富士胶片株式会社 | Packaging arrangement and packaging method |
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