JP5227533B2 - Wound body structure - Google Patents

Description

  The present invention relates to a wound body structure that has good workability and can sufficiently suppress blocking when a sheet is wound around a core in the initial stage of production of the wound body.

  A wound body in which a long sheet on which a use medium such as ink in a printing apparatus or transfer medium in a transfer tool is provided on a substrate is wound around a core (core body) is, for example, a predetermined sheet on the sheet It is manufactured by being wound while applying tension (tensile force).

  For example, by winding with high tension (hereinafter, referred to as firm winding), a large number of sheets can be wound at the same winding diameter, and the core is less likely to come off from the wound sheet.

  However, in the case of this tight winding, or when winding tightening occurs due to factors such as thermal expansion of the base material or core after manufacturing the wound body, for example, the ink in the wound state is positioned on the upper surface. So-called blocking may occur, which moves to the back surface of the substrate to be performed. Blocking tends to occur during high temperature storage. In addition, when the core is made of paper, the paper pattern may move.

  On the other hand, for example, when the winding is performed at a low tension (hereinafter referred to as gentle winding), the blocking is suppressed, but the core is easily removed from the wound sheet, and the wound sheets are separated from each other. Trouble that winding form becomes bamboo child shape occurs.

Then, the following patent documents 1-4 are known as a technique for suppressing the said problem in a winding body conventionally.
Japanese Utility Model Publication No. 60-88763 Japanese Utility Model Publication No.3-1171 JP-A-8-25818 Japanese Patent Laid-Open No. 5-16534

Patent Documents 1 to 3, by winding the pre-buffer body G to the core C as shown in FIG. 5 (a), the winding start portion Se of the outer periphery to the sheet S in the cushion G (hereinafter, end portion Se 5 ) is connected with the tape T, or the end of the end portion Se of the sheet S and the outer periphery of the core C are connected with a buffer G as shown in FIG. ing. That is, in Patent Documents 1 to 3, the sheet S and the end portion Se are wound around the outer periphery of the buffer body G, not the outer periphery of the core C.

Patent Document 4, as shown in FIG. 5 (c), end portion Se is matte rough surface, i.e. particulate unevenness (hereinafter, referred to as mat) is configured to be processed to form M. Incidentally, illustrating the configuration of an integral in FIG. 5 (c), the end portion Se forming the mat M of the sheet S and another member in the tape T.

  However, in Patent Documents 1 to 3, although unnecessary tension due to tight winding or tightening is absorbed by a buffer body interposed between the core and the sheet, the occurrence of blocking is suppressed. This is exhibited when the wound body is completed after completion of the process, and the following problems occur at the start of sheet winding.

That is, in the configuration shown in FIG. 5 (a), it is necessary to prepare a special core cushion is provided on the outer periphery of the core. On the other hand, in the configuration shown in FIG. 5 (b), when winding the sheet into the core, but in the sheet and the core applies a predetermined tension, because is absorbed by the buffer member to the tension There is a problem that the tension at the start of winding and the subsequent tension is not determined, and the workability at the initial stage of manufacturing the wound body is poor.

  In Patent Document 4, since the end portion has a mat shape, the poor workability at the initial stage of manufacturing the wound body is not conspicuous, but conversely, the buffering effect is low and blocking is sufficiently suppressed. There is a problem that you can not. It is conceivable to form a mat having a high buffering effect, but in this case, the workability at the initial stage of production of the wound body deteriorates as the buffering effect increases.

  The problem to be solved by the present invention is that in Patent Documents 1 to 3, blocking can be suppressed by the buffer, but it is necessary to prepare a special core in which the buffer is wound around the outer periphery in advance, Even the tension applied to the sheet at the initial stage of production is absorbed and the workability is poor. In Patent Document 4, since the end portion is made into a mat shape, the deterioration of the workability at the initial stage of the wound body can be suppressed, but blocking. This is a point that cannot be sufficiently suppressed.

In order to solve the above problems, a wound body structure of the present invention is a wound body structure in which a sheet provided with a thermal transfer recording medium or a transfer medium as a use medium on a base material is wound around a core, An end portion that is continuously formed or provided separately from the base material and is a winding start end portion of the base material is connected to the core so that it can be wound, and the end portion is connected to the base material. on a surface medium used in the end portion is not provided if it is continuously formed, if the end portion is provided on the substrate separately from the span and the substrate and the end portion the surface not is provided medium used in preparative both was the provision of the circumferential portion of the length of the cushion core.

  In the wound body structure of the present invention, since the end portion of the base material is connected to the core, in the initial stage of the production of the wound body, the tension is directly transmitted from the end portion of the base material of the sheet to the core. Is done. Therefore, it is possible to wind while applying a predetermined appropriate tension at the initial stage of winding, and it is possible to obtain a uniform wound body that does not cause loose winding or firm winding.

  In addition, in the wound body structure of the present invention, when the winding tightening occurs after the winding is completed, the buffer body absorbs the expanded portion, so that blocking of the used medium in the wound state is surely suppressed. it can. In addition, the wound body structure of the present invention can be compatible with each other without one of the good workability at the start of winding and the suppression of blocking inhibiting the other.

The present invention can be carried out by the following embodiments shown in FIGS. Figure 1 is a first embodiment, FIG. 2 and FIG. 3 is a second embodiment, FIG. 4 is a third embodiment, shown each. In the first embodiment, the basic and common configuration of the wound structure of the present invention will be described, and in the second and subsequent embodiments, only the configuration different from the first embodiment will be described.

(First form)
The wound body structure in the first embodiment shown in FIG. 1 has a buffer C interposed in the wound sheet 3 when the sheet 3 provided with the use medium 2 on the substrate 1 is wound around the core 4. The details are as follows. In the first to third embodiments, the core 3 is made of tubular, for example, hard paper.

  The base material 1 is made of a known material such as PET film, PP film, paper, and the like, and the use medium 2 is provided in a layer form on one side. In this embodiment, for example, the other side of the base material 1 is wound on the other side. A so-called mold release treatment is applied in advance to facilitate separation of the other surface of the base material 1 in the mounted state and the use medium 2 located in the lower layer and to suppress blocking (or a material having such an action) Is used).

Using medium 2 is soluble Torugata or sublimation type thermal transfer recording medium or a modified or pressure-sensitive adhesive of the transfer medium, and is a. And this use medium 2 is provided in layer form by apply | coating to the one surface of the base material 1, for example, and the sheet | seat 3 is comprised.

  In the first form, the end portion 1 </ b> A that is the winding start end of the base material 1 around the core 4 is formed continuously with the base material 1. The use medium 2 is not provided on one surface of the end portion 1A, and a buffer C is provided on the other surface of the end portion 1A, for example.

For the buffer C, for example, as the plastic, a foamed plastic film such as polyurethane, polystyrene, or polyethylene may be used, or a nonwoven fabric or rubber may be used. The length of the cushion C is the length of the circumference portion of the core 4.

  The end portions of the base 1 and the buffer C in the end portion 1A are connected to the core 4 by, for example, an adhesive tape T. Further, instead of the connection, an adhesive may be applied to the end of the buffer C to connect the end 1 </ b> A of the base 1 and the buffer C to the outer periphery of the core 4.

  Strictly speaking, with respect to the connection with the core 4, in the case of the former using the adhesive tape T, the base material 1 and the core 4 are coated with the adhesive tape T, and an adhesive is applied to the end of the buffer body C. In the latter case, the buffer body C and the core 4 are connected to each other, which means a positional relationship on the inner and outer peripheral sides with respect to the core 4.

  In the present invention, “connected to the core so as to be wound” is defined as follows. One means the positional relationship in the longitudinal direction of the sheet 3 (base material 1), not the position of the inner and outer circumferences with respect to the core 4. That is, in the latter case, not only the end portion 1A of the base material 1 but also the buffer body C is connected to the core 4, but the end portion 1A of the base material 1 and the buffer body C are both cores in the longitudinal direction. Since it is the same position that reached 4, it is included in the definition.

  In the present invention, another definition of “connectable to the core so as to be wound” is as follows. The end portion 1A of the sheet 3 (the substrate 1) (the medium 1 used) is applied to the substrate 1; This means that the end portion 1A of the base material 1 (which is not coated with 2) can be wound while a predetermined tension is applied to the core 4. That is, in the present invention, the term “connectable to the core” means that if the connection is possible to wind around the core 4 at the beginning of production, it is not separated from the core 4 when used up to the end portion 1A after winding. Both possible and separable configurations are included.

  Thus, in the wound body structure of the present invention, the end portion 1A of the base material 1 is connected to the core 4 with the buffer body C. Tension can be transmitted directly to the core. As a result, it is possible to wind while applying a predetermined appropriate tension at the initial stage of winding, and the workability is also good. A uniform wound body.

  In addition, since the wound body structure of the present invention only needs to be provided by bonding the buffer body C to the end portion 1A in advance before winding the sheet 3 around the core 4, complicated pretreatment is required. It can also be applied to existing processes.

  Furthermore, the winding body structure of the present invention ensures blocking even if winding or tightening occurs during winding or after winding is completed, because the buffer body C absorbs the tension and expansion amount. Can be suppressed.

  For example, when the use medium 2 is a wax-based hot-melt transfer medium, blocking near the outer periphery of the core 4 frequently occurs during high-temperature storage, which can be greatly suppressed. Moreover, when the use medium 2 is an adhesion type and dot-shaped transfer medium, the contact area with the base material 1 is small and blocking frequently occurs, but this can also be significantly suppressed.

( Second form)
In the second embodiment shown in FIGS. 2 and 3 , the use medium 2 is provided up to the end of the end portion 1 </ b> A of the base material 1, and the weak adhesive is applied to one surface of the buffer body C (the surface on the base material 1 side). While B1 is applied, the other surface (the surface on the side of the buffer body C) of the end portion 1A is subjected to a mold release process, and the end portion on the core 4 side of the buffer body C is applied with the medium adhesive B2. in this respect the other surface of the opposite end which is strong adhesive B3 to (the upper side in FIG. 2 (a)) is applied is different from the first embodiment.

That is, the second form is a configuration of a wound body that is used by the sheet 3 being sent to the end portion 1A, and the adhesive strength to the core 4 and the base material 1 with the buffer body C as the center is changed. The reason is due to this configuration.

That is, the weak adhesive B1 (and the release treatment of the other surface of the base 1A) can be easily peeled off from the buffer C at the end of feeding as shown in FIGS. 3 (a) and 3 (b). This is because the weak adhesive B1 does not remain on the substrate 1 side.

As shown in FIGS. 2 (a) and 2 (b), the intermediate adhesive B2 prevents the base material 1 (the end portion 1A) from being easily peeled from the core 4 when the sheet 3 is wound around the core 4. It is to do. Moreover, strong adhesive B3, as shown in FIG. 3 (b), the final to cushion C of delivery is for preventing peeling from the core 4 together with the substrate 1 (end portion 1A).

During winding, as shown in FIG. 2 (a), first, leave adhering the cushion C and the end portion 1A by the weak adhesive B1, in this state, cushion C and the end portion relative to the core 4 1A is connected by the middle adhesive B2, and winding is started. When wound up counter core 4 side end portion of the end portion 1A, as shown in FIG. 2 (b), connected by a buffer material C and the core 4 Tsutomu Toga adhesive B3, since, as usual, the sheet 3 wound Be dressed.

At the time of delivery, as shown in FIG. 3 (a), when sent to the end portion 1A, the buffer body C and the base material 1 (end portion 1A) are peeled off by the release treatment of the weak adhesive B1 and the base material 1. To do. At this time, the buffer C is not peeled off from the core 4 by the strong adhesive B3. Thereafter, when the end part 1A is further fed to the end part on the core 4 side, the buffer body C and the base material 1 are peeled off by the weak adhesive B1 as described above. Do not peel from.

  By doing so, in addition to the effects of the first embodiment, for example, at the end of the use medium 2 in the sheet 3, the sheet is separated from the buffer body C by applying a predetermined force of feeding (drawing) by the printing device. Therefore, there is an advantage that it is possible to prevent the printing apparatus from being subjected to an unnecessary load for sending out, and to suppress a trouble caused by the buffer C being sent to the printing site of the printing apparatus. The present invention can be applied not only to a wound body as an original fabric but also to an actual product using the wound sheet 3.

( Third form)
In the third embodiment shown in FIG. 4 , the buffer body C is provided across the base material 1 and the end portion 1 </ b> A, and the base material 1 and the end portion 1 </ b> A are provided on one side of the buffer body C (surface on the base material 1 side). ) And the other surface of the base material 1 (the surface on the side of the shock absorber C) is subjected to a mold release treatment, and the end of the shock absorber C on the core 4 side Is adhered to the other surface of the end portion 1A with an adhesive tape T2, and a strong adhesive B3 is applied to the other surface (the upper side in FIG. 4 ) of the opposite end portion, and the core 4 of the end portion 1A is further applied. The point from which the side edge part and the core 4 are connected with the adhesive tape T3 differs from a 1st form.

In other words, the third form is a configuration in which the versatility of the second form is increased, or more sheets 3 can be sent out and used. At the time of winding, the base material 1 and the end portion 1A are integrated with the buffer body C, and the buffer body C is integrated with the end portion 1A and the adhesive tape T2 at the core 4 side end portion, and the end portion 1A is Since it is connected to the core 4 by the adhesive tape T3, there is no problem even if tension is applied.

  On the other hand, at the time of delivery, since the buffer C is bonded to the core 4 by the strong adhesive B3, it does not peel off from the core 4. On the other hand, the base 1 and the buffer C are the weak adhesive B1 and the base. It peels by 1 mold release process. The end portion 1A and the base material 1 are easily separated because the buffer body C is peeled off from the base material 1 while remaining on the core 4 side.

Also in this manner, in addition to the effects of the first embodiment, to increase the versatility, the final end (near) to send out power sale has to be able to use work for the effect of the seat 3, and the delivery of unnecessary printing device It is possible to prevent the load from being applied, and to obtain the effect of the second mode in which the trouble caused by the buffer C being sent to the printing site of the printing apparatus can be suppressed.

In the first to third embodiments, the buffer body C is provided on the surface of the end portion 1A of the base 1 opposite to the side on which the use medium 2 is provided. It may be provided on the surface or on both surfaces.

It is a figure which shows the winding body structure in the 1st form of this invention. (A) (b) is the winding body structure in the 2nd form of this invention, and is a figure which shows the condition at the time of winding. (A) (b) is the winding body structure in the 2nd form of this invention, and is a figure which shows the condition at the time of sending out. It is a figure which shows the winding body structure in the 3rd form of this invention. (A)-(c) is a figure which shows schematic structure of the conventional winding body structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base material 1A End part 2 Use medium 3 Sheet C Buffer T , T 2, T3 Adhesive tape B1 Weak adhesive B2 Medium adhesive B3 Strong adhesive

Claims (1)

A wound structure in which a sheet provided with a thermal transfer recording medium or a transfer medium as a use medium on a base is wound around a core, and is formed continuously with the base, or separate from the base provided, end portions of the winding start end portion of the base material is connected in a wound in the core, when the end portion is continuously formed with the base material used in the end portion on the surface medium is not provided, the end portion is not media used to co the span and the substrate and the end portion is provided if provided on the substrate separately from the surface, the core A wound body structure characterized in that a buffer body having a length corresponding to the circumference of is provided.

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