JP3845684B2 - Manufacturing method of information communication body using pseudo adhesive sheet - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to an information communication body that can be used for DM (direct mail), postcards, reciprocal postcards, sealed letters, and the like. In detail, the present invention conceals a large amount of information because papers stacked or folded in multiple layers are releasably stacked, although the appearance is normal DM, postcard, reciprocal postcard, and sealed letter. The present invention relates to a method of manufacturing an information communication body that can be used.
[0002]
[Prior art]
Recently, in a postal matter such as a postcard, an information communication body has been developed in which a plurality of pieces of information are overlapped or folded so that they can be peeled and bonded (hereinafter referred to as “pseudo-adhesion”) so that a large amount of information can be mailed. It is used a lot.
Such an information communication body can be prepared by laminating a thermoplastic resin film on the surface of leaf pieces connected via a fold line, and then folding and applying a heat / pressure treatment.
However, in this method, it is very difficult to manage the heat during the heating / pressurizing treatment, and when the heating is insufficient, the peeling occurs spontaneously. When the heating is excessive, the peeling becomes difficult due to blocking, and the paper surface is destroyed. And other problems. In view of such a situation, there is a method in which one thermoplastic resin layer is further provided as a pseudo-adhesion layer on the surface of the laminated thermoplastic resin film, and the thermoplastic resin films are pseudo-adhered via the pseudo-adhesion layer. Conceivable.
When the two-layer pseudo adhesive sheet is used, natural peeling cannot occur if the opposing pseudo adhesive layers are sufficiently fused together. Further, at the time of peeling, if the pseudo-adhesive layer is sufficiently thin, it can be easily divided, and even if the fused pseudo-adhesive layer is divided as such, the surface of the printed material is the thermoplastic resin film of the support. Since it is protected by this, it is not destroyed and can be used practically.
[0003]
[Problems to be solved by the invention]
However, in the two-layer pseudo-adhesive sheet, although the above-described natural peeling and destruction of the paper surface cannot occur, the fused pseudo-adhesive layer is forcibly divided, so the surface after peeling is very It becomes a rough state. And when the said pseudo adhesion | attachment is applied to printed matter, such as DM, a printing surface will be seen through this surface roughness after peeling. Even on a normal printing surface, the rough surface due to the splitting of the pseudo adhesive layer causes a patchy pattern, but particularly when the back is a cold-colored solid print, the spotted pattern appears remarkably and is printed. In addition to damaging the image of the product or the like, the value of the product may be reduced, and in some cases, the product may be subject to claims, and there may be a large burden of damages on the manufacturer of the information communication body or the pseudo adhesive sheet.
The present invention does not cause natural peeling, and the pseudo-adhesive layer can be surely divided at the time of peeling, and the surface of the pseudo-adhesive sheet after peeling is not rough, and therefore, a spot pattern is generated on the printing surface such as DM. It is intended to without, to provide a method of manufacturing a transparent high ERROR report communication member.
[0004]
[Means for Solving the Problems]
In view of the above problems, the present inventors have reached the present invention after intensive studies to achieve the above object.
That is, the method of manufacturing an information communication body according to the present invention includes a support on a pseudo adhesion planned surface of a printing paper on which a plurality of information communication body papers composed of at least two leaf pieces connected via a folding line are printed. A step of coating a pseudo-adhesive sheet comprising a pseudo-adhesive layer made of a thermoplastic resin formed on one surface with the pseudo-adhesive planned surface facing the non-pseudo-adhesive layer side of the support, a pseudo-adhesive sheet comprising: A step of individually cutting a plurality of information communication body papers on a coated printing paper, a step of folding the cut information communication body paper with a fold line, and heating any facing surface of the folded information communication body paper -A method of manufacturing an information communication body comprising a step of pseudo-adhesion via a pseudo-adhesion layer on each surface by pressure treatment, wherein the pseudo-adhesive sheet support and pseudo-adhesion layer are produced by coextrusion molding With The difference between the heating temperature Tp of the support and the inner surface side of the information communication-body sheet extrusion temperature Te of lower of pseudo adhesive layer during the heating and pressing process when serial coextrusion (Te-Tp) is 120 ℃ that it is characterized by or more.
[0005]
As the support in the pseudo adhesive sheet, polyester, polyethylene, polypropylene, polystyrene, polyamide, polyphenylene sulfide, soft vinyl chloride, polycarbonate, nylon, acetate, fluororesin, poly-4 -Resins such as methylpentene-1 series, ABS resin series, and other heat-resistant / engineering resins can be suitably used.
In addition, various waxes including a tackifier, a filler, an antiblocking agent, a coupling agent, a roll releasing agent, a lubricant, an antioxidant, and the like may be added to the constituents of the support.
[0006]
The pseudo-adhesive layer in the pseudo-adhesive sheet may be polyester, polyethylene, polypropylene, ethylene vinyl acetate copolymer, ethylene acrylic acid copolymer, ethylene ethyl acrylate copolymer, poly-4-methylpentene. -1 series, ionomer series, polyvinyl chloride series, polyvinylidene chloride series, ABS resin series, polystyrene / AS resin series, methacrylic resin series, polyvinyl alcohol series, cellulosic plastics, thermoplastic elastomers and other suitable thermoplastic resins Can be used.
In addition, various waxes including a tackifier, a filler, an antiblocking agent, a coupling agent, a roll release agent, a lubricant, a mold release agent, an antioxidant, and the like are added to the components of the pseudo adhesive layer. It doesn't matter.
[0007]
As a method for producing a pseudo-adhesive sheet comprising the support and the pseudo-adhesive layer, a known coextrusion method can be used.
By the way, the two-layered pseudo-adhesive sheet is manufactured by coextrusion molding in which two different resins (support resin and pseudo-adhesive layer resin) are simultaneously extruded as a single molten film through a single die. Is done. Then, when manufacturing the information communication body, the pseudo adhesion planned surfaces are subjected to a heating / pressurizing process with the pseudo adhesion layers on the respective surfaces facing each other. In this case, a plurality of film layers are laminated and integrated between the support and the pseudo-adhesive layer and between the opposing pseudo-adhesive layers, regardless of the difference in bonding force. Therefore, when the recipient peels off the completed information communication body, it is not peeled off between the support and the pseudo-adhesive layer, and the support and pseudo-adhesion are surely started from the interface between the two pseudo-adhesive layers. It is necessary to bond the layers more firmly. Therefore, it can be said that it is preferable to select a combination of similar resins having little difference in chemical properties and thermal rheological properties as materials for the support and the pseudo-adhesive layer.
[0008]
According to the present invention, the heating temperature Tp on the inner surface side of the information communication body paper at the time of heating / pressurizing processing when performing pseudo-adhesion is higher than the lower extrusion temperature Te of the support and pseudo-adhesive layer at the time of coextrusion molding. Extrusion of the support and pseudo-adhesive layer at the time of coextrusion molding is much lower than the heating temperature Tp on the inner surface side of the information-communication-communication paper at the time of heating and pressurizing when performing pseudo-adhesion If the temperature Te is considerably high, the adhesive force between the pseudo adhesive layers becomes weaker than the adhesive force between the support and the pseudo adhesive layer, and the peeling is reliably performed at the interface between the pseudo adhesive layers without blocking. Is done. Furthermore, in the present invention, the pseudo-adhesion layer is molded at an extrusion temperature higher than the heating temperature at the time of performing the pseudo-adhesion, so that a strong finish is obtained, the surface after peeling does not become rough, and the transparency is high. A surface is obtained.
[0009]
As the information communication body sheet in the method for manufacturing an information communication body according to the present invention, a sheet in which a plurality of leaf pieces are connected via a folding line can be used.
The information communication body paper is not particularly limited, and commonly used printing paper, synthetic paper, plastic resin film or sheet, cloth, or the like can be used.
There is no limit to the number of leaf pieces constituting the information communication body paper, and from the two leaf pieces for the basic two-fold form, further three-leaf pieces and four-leaf pieces for the three-fold form and the four-fold form are used. You can choose. Regarding the folding mode, there are Z (S) fold and C (wind) fold in the case of three folds, and in the case of four folds, there are accordion folds, winding folds, mixed folds of accordion folds and winding folds, double-folding folding, etc. There are no restrictions on multiple folds beyond that.
[0010]
There is no restriction on the processing of a plurality of facing surfaces that occur according to the folding mode. That is, all the facing surfaces may be pseudo-bonded so that they can be peeled off, or any of the facing surfaces may be completely bonded so that they cannot be peeled off, or may be left in a non-bonded state without any further action. Absent. In short, the most effective application may be selected and designed according to the purpose of use of the information communication body to be created.
For example, when the information communication body paper composed of three leaf pieces is Z-folded, two opposing surfaces are generated. In that case,
a) Pseudo-adhering to the two opposing surfaces so that they can be peeled off, and then developing again into three leaf pieces after peeling.
b) Pseudo-adhering the opposing surface at one place and completely adhering the remaining one opposing surface, and after peeling off, it is spread on two pages.
c) Three options are possible, such as pseudo-bonding one facing surface and leaving the remaining one facing surface free without bonding.
Regarding a) and b), it is currently approved to be used as a postcard, and as for c), it should be used as a reciprocal postcard in which a free reply postcard is concatenated with a half-folded pseudo-adhesive postcard. Is allowed.
[0011]
The method of manufacturing an information communication member covers the pseudo adhesive sheet to the pseudo bonding scheduled surface of the printing paper in which a plurality of information communication-body sheet is imposition, heat roll or the heater first panel after folded and cut individually And the heating and pressurizing process by the pressure roller etc. is passed and the manufacture is completed.
For the pseudo-adhesive sheet, it is necessary to select physical properties of the pseudo-adhesive layer so as not to cause blocking or the like during storage in a laminated state due to high temperatures in summer. Further, the heating temperature Tp when performing the pseudo-adhesion must be set in consideration of whether toner is used on the surface of the printing paper. When the toner on the printing paper surface as described above is used, the heating temperature Tp for practical use is Ri Do in the range of about 70 to 130 ° C. at the inner surface side of the pseudo bonding scheduled surfaces opposed, thus In that case , the extrusion temperature Te at the time of coextrusion molding needs to be set to at least about 190 ° C. for both the support and the pseudo adhesive layer in order to obtain a temperature difference of 120 ° C. or more from the heating temperature T p. there Ru.
[0012]
As a method of covering the pseudo adhesion sheet on the printing paper on which the information communication body paper is imposed, there are dry lamination and thermal lamination, for example. Dry lamination is a method in which a pseudo-adhesive sheet is completely adhered to a pseudo-adhesive surface of a printing paper while applying an adhesive to the non-pseudo-adhesive layer side surface of the support. In thermal lamination, a pseudo-adhesive sheet having a three-layer structure in which a known heat-sensitive adhesive layer is formed in advance on the surface of the support on the non-pseudo-adhesive layer side is used. The adhesive is completely adhered to the pseudo-adhesive surface of the printing paper while dissolving the agent.
[0013]
In the information communication body manufacturing method, the information communication body paper folding step is arranged after the printing paper cutting step, but the order of the two steps is not particularly limited. Since a plurality of information communication body papers laid out on the printing paper are naturally arranged with fold lines and cut lines, for example, two adjacent information communication body papers are cut as one block and attached with two blocks. It can be folded as it is to complete the pseudo-adhesion and then cut individually. Further, the printing paper cutting process can be arranged stepwise before or after the folding process, and gradually finished into individual information communication bodies.
[0014]
[Action]
In the present invention, the difference between the lower extrusion temperature Te of the support and the pseudo-adhesive layer at the time of co-extrusion molding of the pseudo-adhesive sheet and the heating temperature Tp on the inner surface side of the information communication body paper during the pseudo-adhesion is 120 ° C. or more. become. Due to this high temperature difference, the support and the pseudo-adhesive layer are firmly bonded by coextrusion, and the pseudo-adhesive layer does not peel off from the support, and the pseudo-adhesive layers with weak adhesive strength are separated from each other at their interfaces. It peels reliably. Moreover, since the pseudo-adhesive layer itself is firmly produced on the support as a single film layer at a high temperature, the surface after peeling does not become rough and the occurrence of spotted patterns is eliminated.
[0015]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a sectional view of a pseudo adhesive sheet according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of a pseudo adhesive sheet according to another embodiment in which a heat-sensitive adhesive layer is provided on the surface of the support in the pseudo adhesive sheet shown in FIG. 1 on the non-pseudo adhesive layer side. FIG. 3 is a cross-sectional view of the most basic two-fold information communication body when the pseudo adhesive sheet shown in FIG. 1 or FIG. 2 is applied.
In the pseudo-adhesive sheet according to the present invention, based on a plurality of experimental results, the inner surface of the information communication-body sheet at an extrusion temperature Te and the pseudo bonding execution lower of the support and the pseudo adhesive layer during coextrusion molding Although the range of the temperature difference of the side heating temperature Tp is limited, the following examples are representative and the present invention is not limited to the contents of these examples.
[0016]
Example 1.
As shown in FIG. 1, a pseudo-adhesive sheet G comprising a support 1 and a pseudo-adhesive layer 2 formed on one surface thereof was manufactured by coextrusion molding.
Polypropylene was used as the support 1 and a thermoplastic resin mainly composed of ethylene vinyl acetate copolymer was used as the pseudo-adhesion layer 2. In the coextrusion molding for producing the support 1 and the pseudo adhesive layer 2, the extrusion temperature of both is 240 ° C., the thickness of the former is 18 μm, the thickness of the latter is 2 μm, and the total thickness is 20 μm. The conditions were adjusted.
The pseudo-adhesive sheet G produced in this way is laminated on the surface of a printing paper (76.5 kg in terms of chrysanthemum conversion) on which a plurality of postcard-sized information communication body papers 4 are printed, and individually cut, The information communication body paper 4 was folded along the fold line in the state shown in FIG. 3 so that the pseudo adhesive layer 2 was opposed, and passed through a heat roller for heating / pressurizing treatment. The temperature of the heat roller was about 110 ° C., and the heating temperature was adjusted to about 100 ° C. on the inner surface side of the folded information communication body paper 4.
In the case of the first embodiment, the information communication body paper at the time of heating and pressurizing the information communication body paper 4 and the extrusion temperature Te of the support 1 and the pseudo adhesive layer 2 at the time of co-extrusion molding of the pseudo adhesive sheet G. The difference in the heating temperature Tp on the inner surface side of 4 is about 140 ° C.
When the surface of the information communication body J created in this way was peeled off and the surface was observed, there was no roughening even in the cold-colored solid-printed portion, and a surface state with very high transparency without occurrence of spotted patterns was observed. confirmed.
[0017]
Comparative Example 1
The extrusion temperature at the time of co-extrusion molding of the support 1 and the pseudo adhesive layer 2 was set to 200 ° C., and other conditions were set in the same manner as in Example 1.
In the case of this comparative example 1, the information communication body paper at the time of heating / pressurizing the information communication body paper 4 and the extrusion temperature Te of the support 1 and the pseudo adhesive layer 2 at the time of coextrusion molding of the pseudo adhesive sheet G The difference in the heating temperature Tp on the inner surface side of 4 is about 100 ° C.
When the information communication body created in this way was peeled and the surface was observed, spotted patterns were partially generated in a rough state, and it was unsightly.
[0018]
Comparative Example 1 ′.
The temperature of the heat roller during the heating / pressurizing process is adjusted to about 160 ° C. so that the heating temperature is about 150 ° C. on the inner surface side of the information communication body paper 4. did.
For this comparative example 1 ', the information communication-body at the time of heating and pressure processing of the pseudo-adhesive sheet extrusion temperature of the support 1 and the pseudo adhesive layer 2 during coextrusion of G Te and information communication-body sheet 4 The difference in heating temperature Tp on the inner surface side of the paper 4 is about 90 ° C.
When the information communication body thus prepared was peeled off and the surface was observed, the entire surface was rough and spotted patterns were generated overall, which was extremely unsightly.
[0019]
Example 2
As shown in FIG. 1, a pseudo-adhesive sheet G comprising a support 1 and a pseudo-adhesive layer 2 formed on one surface thereof is manufactured by coextrusion molding. Further, as shown in FIG. The heat-sensitive adhesive layer 3 was formed on the surface of the non-pseudo-adhesive layer side by coating to form a three-layer structure as a whole.
Polyethylene terephthalate was used as the support 1, and a thermoplastic resin mainly composed of ethylene ethyl acrylate copolymer was used as the pseudo adhesive layer 2. In the co-extrusion molding for producing them, the former extrusion temperature is 290 ° C., the latter extrusion temperature is 270 ° C., the former thickness is 14 μm, and the latter thickness is 1 μm so that the total thickness is 15 μm. The conditions were adjusted.
The pseudo adhesive sheet G produced in this way is laminated on the surface of a printing paper (76.5 kg converted to chrysanthemum) on which a plurality of postcard double size information communication body papers 4 are printed and cut individually, It folded in the state shown in FIG. 3 so that the contact bonding layer 2 might oppose, and it used for the heating and pressurizing process through the heat roller. The temperature of the heat roller was about 140 ° C., and the heating temperature was adjusted to about 130 ° C. on the inner surface side of the folded information communication body paper 4.
In the case of Example 2, the extrusion temperature Te (however, the lower extrusion temperature) of the support 1 and the pseudo-adhesion layer 2 and the heating / pressurization of the information communication body paper 4 during co-extrusion molding of the pseudo-adhesive sheet G The difference in heating temperature Tp on the inner surface side of the information communication body paper 4 during processing is about 140 ° C.
When the surface of the information communication body J created in this way was peeled off and the surface was observed, there was no roughening even in the cold-colored solid-printed portion, and a surface state with very high transparency without occurrence of spotted patterns was observed. confirmed.
[0020]
Comparative Example 2
The extrusion temperature of the pseudo adhesive layer 2 was 230 ° C., and other conditions were set in the same manner as in Example 2.
For this comparative example 2, the information at the time of heating and pressurizing treatment pseudo adhesive sheet extrusion temperature of the lower of the support 1 and the pseudo adhesive layer 2 during coextrusion of G T e and the information communication-body sheet 4 The difference in the heating temperature Tp on the inner surface side of the communication body paper 4 is about 100 ° C.
When the information communication body created in this way was peeled and the surface was observed, spotted patterns were partially generated in a rough state, and it was unsightly.
[0021]
Example 2 '.
The temperature of the heat roller was set to 100 ° C., and the heating temperature was adjusted to 90 ° C. on the inner surface side of the information communication body paper, and other conditions were set in the same manner as in Comparative Example 2.
In this embodiment 2 ', the at the time of heating and pressure processing of the pseudo-adhesive sheet extrusion temperature of the lower of the support 1 and the pseudo adhesive layer 2 during coextrusion of G T e and the information communication-body sheet 4 The difference in the heating temperature Tp on the inner surface side of the information communication body paper 4 is about 140 ° C.
When the information communication body created in this way was peeled off and the surface was observed, there was no roughening even in the cold-colored solid-printed part, and a surface state with very high transparency was confirmed without spot patterns. It was.
[0022]
Example 3
As shown in FIG. 1, a pseudo-adhesive sheet G comprising a support 1 and a pseudo-adhesive layer 2 formed on one surface thereof was manufactured by coextrusion molding.
Poly-4-methylpentene-1 was used as the support 1 and a thermoplastic resin mainly composed of an ethylene acrylic acid copolymer was used as the pseudo-adhesion layer 2. In the coextrusion molding for producing them, the former extrusion temperature is 300 ° C., the latter extrusion temperature is 320 ° C., the former thickness is 16 μm, and the latter thickness is 2 μm, so that the total thickness is 18 μm. Adjusted.
The pseudo-adhesive sheet G manufactured in this way is laminated on the surface of a printing paper (93.5 kg in chrysanthemum conversion) on which a plurality of postcard-sized information communication body papers 4 are printed, cut individually, and then pseudo-adhered. It was folded in the state of FIG. 3 so that the layers 2 face each other, passed through a heat roller, and subjected to a heating / pressurizing treatment. The temperature of the heat roller was about 180 ° C., and the heating temperature was adjusted to about 160 ° C. on the inner surface side of the folded information communication body paper 4.
In this embodiment 3, the information at the time of heating and pressurizing treatment pseudo adhesive sheet extrusion temperature of the lower of the support 1 and the pseudo adhesive layer 2 during coextrusion of G T e and the information communication-body sheet 4 The difference in heating temperature Tp on the inner surface side of the communication body paper 4 is about 140 ° C.
When the information communication body created in this way was peeled off and the surface was observed, there was no roughness even in the cold-colored solid-printed part, and a surface state with very high transparency was confirmed without spot patterns. It was done.
[0023]
Comparative Example 3
The extrusion temperature of the support 1 was 270 ° C., and other conditions were set in the same manner as in Example 3.
For this comparative example 3, the information at the time of heating and pressurizing treatment pseudo adhesive sheet extrusion temperature of the lower of the support 1 and the pseudo adhesive layer 2 during coextrusion of G T e and the information communication-body sheet 4 The difference in the heating temperature Tp on the inner surface side of the communication body paper 4 is about 110 ° C.
When the information communication body thus prepared was peeled off, the support and the pseudo-adhesive layer were partly peeled off, and the surface state became extremely unsightly.
[0024]
Example 3 '.
The temperature of the heat roller was adjusted to about 160 ° C. so that the heating temperature was about 140 ° C. on the inner surface side of the information communication body paper, and other conditions were set in the same manner as in Comparative Example 3.
In this embodiment 3 ', said during heating and pressing process of the pseudo-adhesive sheet extrusion temperature of the lower of the support 1 and the pseudo adhesive layer 2 during coextrusion of G T e and the information communication-body sheet 4 The difference in the heating temperature Tp on the inner surface side of the information communication body paper 4 is about 130 ° C.
When the information communication body created in this way was peeled off and the surface was observed, there was no roughness even in the cold-colored solid-printed part, and a surface state with very high transparency was confirmed without spot patterns. It was done.
[0025]
【The invention's effect】
According to the present invention, the difference between the lower extrusion temperature of the support and the pseudo-adhesive layer at the time of co-extrusion molding of the pseudo-adhesive sheet and the heating temperature on the inner surface side of the information communication body paper at the time of pseudo-adhesion is 120 ° C. or more. become. Due to this high temperature difference, the support and the pseudo-adhesive layer are firmly bonded by coextrusion, so that the pseudo-adhesive layer does not separate from the support, and when the completed information communication body is peeled off, the pseudo-adhesive layer is reliably bonded. Peeling is performed from the layer interface. Moreover, since the surface of the pseudo-adhesive layer formed at an extrusion temperature 120 ° C. higher than the heating temperature at the time of performing the pseudo-adhesion as described above is strong, the surface after peeling does not become rough, and the occurrence of spotted patterns is also possible. Disappear.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a pseudo adhesive sheet according to an embodiment of the present invention.
2 is a cross-sectional view of a pseudo adhesive sheet according to another embodiment in which a heat-sensitive adhesive layer is provided on the non-pseudo adhesive layer side surface of the support in the pseudo adhesive sheet shown in FIG.
FIG. 3 is a cross-sectional view of the most basic two-fold information communication body when the pseudo adhesive sheet shown in FIG. 1 or FIG. 2 is applied.
[Explanation of symbols]
G Pseudo-adhesive sheet J Information communication body 1 Support body 2 Pseudo-adhesion layer 3 Heat-sensitive adhesive layer 4 Information communication body paper

Claims (2)

Pseudo-adhesion made of thermoplastic resin formed on the support and one side of the support on the pseudo-adhesive planned surface of the printing paper on which a plurality of information communication body papers composed of at least two leaf pieces connected via folding lines are printed A step of coating the pseudo-adhesive sheet composed of a layer with the pseudo-adhesive planned surface facing the non-pseudo-adhesive layer side of the support, and a plurality of sheets for information communication bodies on the printing paper coated with the pseudo-adhesive sheet The individual cutting step, the step of folding the cut information communication sheet with a fold line, and heating and pressurizing any facing surface of the folded information communication sheet through a pseudo adhesive layer on each surface A pseudo-adhesive sheet manufacturing method, wherein the pseudo-adhesive sheet support and pseudo-adhesive layer are manufactured by co-extrusion molding, and the co-extrusion molding support and pseudo-adhesive layer of The difference between the heating temperature Tp of the inner surface side of the information communication-body sheet and had way extrusion temperature Te during the heating-pressurizing treatment (Te-Tp) of the information communication element, characterized in that at 120 ° C. or higher Manufacturing method . The manufacturing method of the information communication body of Claim 1 with which the heat-sensitive adhesive layer was formed in the surface at the side of the non-pseudo-adhesion layer of the support body in a pseudo-adhesion sheet .

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