JP2005280910A - Coated article winding method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a coated article winding method capable of reliably preventing coating composition of a coating film from being transferred to a rolled web when rolling the coated article with the coating film formed on the rolled web. <P>SOLUTION: In the method for winding a coated article 15 with a coating film formed on a surface of the rolled web, a film material 20 substantially as wide as the coated article 15 is inserted in a winding step of the coated article 15 and both the film material and the coated article are simultaneously wound. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a method for winding a coated product in which a predetermined coating process is performed on an original fabric.

Conventionally, when a coated product having a coating film formed on the surface of the original roll is rolled, it is usually wound up as it is. In order to prevent the surface quality from being deteriorated due to blocking (adhesion) with the back side of the original fabric, it has been devised that the polymerized coated products are not brought into contact with each other or the contact pressure is reduced. . As an example of this, for example, a film-like thick film part thicker than the general part of the coating film is formed at both ends of the coating film in the original fabric width direction (see, for example, Patent Document 1). .
JP 2002-68540 A

By the way, in the configuration as described above, it is possible to protect the coating film. However, when a coated product having a fluorine-based coating film is rolled, for example, the coating component of the coating film is the original. May be transferred to the reverse side. This results in dirt on the appearance of the coated product, and when the coated product is separately bonded to an object, the adhesive strength is reduced and the reliability is reduced, leading to a defective product of the coated product. There's a problem.
The present invention has been made in view of the above circumstances, and reliably prevents the coating component of the coating film from being transferred to the original fabric when the coated product having the coating film formed on the original roll is rolled. Provide a method for winding a coated product.

  As a means for solving the above-mentioned problems, the present invention provides a method for winding a coated product in which a coating film is formed on the surface of the original fabric, and a film having substantially the same width as the coated product in the winding process of the coated product. It is characterized by winding these simultaneously while inserting the material.

  According to this configuration, a film material having substantially the same width as that of the coated product is entangled between the coated film in the wound coated product and the back side of the original fabric, so that the coating component of the coated film is Transfer to the original fabric is reliably prevented.

  Moreover, in the winding method of the coated product, the film material is a non-adhesive plastic film, so that the wound coated product can be easily unwound and the film material is peeled off from the coated product. It becomes easy to do. In addition, the adhesive component of the film material is not transferred to the coated product or the coating film is not stained, and the adhesive component does not remain on the coated product after the film material is peeled off.

  Furthermore, in the winding method of the coated product, the film material is embossed so that the coated product and the film material are not brought into contact with each other, or the contact pressure can be reduced. Even if heat treatment (curing treatment) is performed in a roll state after winding the product, it becomes possible to prevent streaks and wrinkles due to dimensional changes of the film material, coating film unevenness due to residual solvent volatilization, and the like.

  Here, in the winding method of the coated product, it is preferable that the embossing is performed on a portion of the film material facing the edge of the coated product in terms of protecting the coating film. .

  According to the present invention, it is possible to surely prevent the coating component of the coating film from being transferred to the original fabric and to prevent various problems of the coated product, so that the quality of the wound coated product is kept good. be able to.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a schematic side view of a coating machine 1 in this embodiment. As shown in FIG. 1, the coating machine 1 is a raw material such as a TAC (triacetylrose) film wound around an unwinder 2. The web 3 is unwound and wound around a plurality of transport rolls 4 extending in the width direction so as to be continuously transported in a state where a substantially uniform tension is generated. After performing a predetermined coating process, the winder 5 is configured to wind it again. In addition, the arrow F in each figure including FIG. 1 shows the conveyance direction of the original fabric 3 (direction substantially orthogonal to the original fabric width direction).

  The coating process on the original fabric 3 includes an application step of applying a desired coating liquid to the surface (lower surface in FIG. 1) of the original fabric 3 with an applicator roll (coating liquid supply device) 6 and the like, The coating liquid applied to the original fabric 3 is subjected to a drying process in which the drying apparatus 8 dries the coating liquid. The raw fabric 3 subjected to such a coating process is wound around the winder 5 and commercialized after undergoing the inspection process and the like.

  A metering roll 7 that can be moved close to and away from the applicator roll 6 is provided at a site adjacent to the applicator roll 6, and the applicator roll 6 cooperates with the applicator roll 6 and the metering roll 7. The coating liquid adhering to the surface of 6 with a predetermined thickness is transferred to the surface (lower surface) of the original fabric 3, that is, a coating layer of the coating liquid having a predetermined thickness is formed on the original fabric surface.

  As shown in FIG. 2, both end portions in the width direction of the original fabric 3 are ear end portions 11. For example, as shown in FIG. 3, these both ear end portions 11 are subjected to adhesion prevention processing such as insertion of an ear end tape and, for example, knurling (embossing). In this adhesion prevention process, by making the both ear end portions 11 thicker than a flat portion between them (hereinafter referred to as a general portion 12), the general portion 12 that is polymerized in a state in which the raw fabric 3 is wound is rolled. It was applied to prevent contact with each other or to reduce the contact pressure. As a result, the raw fabric 3 can be easily unwound, and damage due to the foreign matter being caught in the general portion 12 is prevented.

  By performing the coating process on such an original fabric 3, as shown in FIG. 4, a coated product 15 in which a coating film t is formed on the original fabric surface 3a is manufactured. At this time, a portion corresponding to the ear end portion 11 of the original fabric 3 becomes the ear end portion 16 of the coated product 15, and a portion corresponding to the general portion 12 of the original fabric 3 becomes the general portion 17 of the coated product 15. The width of the general portion 17 is the effective commercialization width of the coated product 15 (indicated by the dimension W in FIG. 4). In addition, the code | symbol 3b in a figure shows an original fabric back surface.

  As shown in FIG. 5, in the vicinity of the winder 5, a sub-unwinder 21 that operates to insert the film material 20 in the winding process by the winder 5 is arranged in parallel. The film material 20 unwound from the sub unwinder 21 is made of, for example, a PET film having substantially the same width as the coated product 15. Here, the film material 20 is a plastic film that does not have an adhesive layer or the like, and has non-adhesiveness.

  Then, by cooperation of the sub-unwinder 21 and the winder 5, a tension equivalent to that of the coated product 15 (original fabric 3) is applied to the film material 20, and these are simultaneously wound while being overlapped. In the figure, the arrow C indicates the winding rotation direction of the winder 5, and the arrow C 'indicates the winding rotation direction of the sub-unwinder 21.

  Between the sub-unwinder 21 and the winder 5, it is used for embossing of the raw fabric 3 and the like at both ends in the width direction of the film material 20, in other words, at the portion facing the ear end 16 of the coated product 15. A rolling device 22 is provided for performing knurling (embossing) similar to that to be performed. The rolling device 22 has a pair of rolling tools 23 and 24 disposed on both sides of the film material 20, respectively, and conveys the film material 20 while applying pressure by the rolling tools 23 and 24. The knurled pattern formed on the outer periphery of the rolling tool is transferred to the film material 20.

  As described above, the winding method of the coated product in the above embodiment is for winding up the coated product 15 having a coating film formed on the surface of the original fabric. The film material 20 having substantially the same width as that of the coated product 15 is inserted into the winding process, and these are simultaneously wound.

  According to this configuration, the film material 20 having substantially the same width as that of the coated product 15 is entangled between the coated film on the wound coated product 15 and the back side of the original fabric, thereby applying the coated film. Transfer of the process component to the original fabric 3 can be reliably prevented.

  Moreover, in the said winding-up method of a coated product, since the film material 20 is a non-adhesive plastic film, the wound coated product 15 is easy to unwind, and from the coated product 15 to a film material. 20 becomes easy to peel. In addition, the adhesive component of the film material 20 is not transferred to the coated product 15 or the coating film is not soiled, and the adhesive component does not remain in the coated product 15 after the film material 20 is peeled off.

  Furthermore, in the winding method of the coated product, by embossing the film material 20, it is possible not to contact the coated product 15 and the film material 20, or to reduce the contact pressure thereof, Even if heat treatment (curing treatment) is performed in a roll state after winding the coated product 15, it is possible to prevent streaks and wrinkles due to dimensional changes of the film material 20, coating film unevenness due to residual solvent volatilization, and the like. Become.

Here, in the winding method of the coated product, the embossing is performed on a portion of the film material 20 facing the ear end portion 16 of the coated product 15 in that the coating film is protected. preferable. Note that the embossing is performed on the film material 20 because the embossing applied to the end portion 11 of the raw fabric 3 is made to some extent by the coating process, and the coated product 15 after the coating process is embossed. This is because the coated product 15 may be cut or twisted when processed.
Thus, according to the winding method of the coated product 15 in the above embodiment, there is an effect that the quality of the coated coated product 15 can be kept good.

In addition, this invention is not restricted to the said Example, For example, the raw fabric 3 may be what knurled and the insertion of the edge tape is not given, and the film material 20 is restricted to polyester, such as PET film. It may be polyethylene, polypropylene or the like.
Moreover, you may emboss the site | part facing the general part 17 of the coating material 15 in the film material 20. FIG.
Furthermore, the present invention can be applied to coating methods and coating machines corresponding to various coating methods such as a fountain coating method, a bar coating method, a blade coating method, and an air knife coating method.
And the structure in the said Example is an example, and it cannot be overemphasized that a various change is possible in the range which does not deviate from the summary of invention.

It is a schematic side view of the coating machine in the Example of this invention. It is a perspective view which shows the unwinder periphery of the said coating machine. It is sectional drawing which follows the A line in FIG. It is sectional drawing which follows the B line in FIG. It is a side view which shows the winder periphery of the said coating machine.

Explanation of symbols

3 Original fabric 15 Coated product 16 Ear end 20 Film material

Claims (4)

  In a method for winding a coated product in which a coating film is formed on the surface of the original fabric, the film material having substantially the same width as that of the coated product is inserted in the winding process of the coated product, and these are simultaneously wound. A method for winding a coated product characterized by   The method for winding a coated product according to claim 1, wherein the film material is a non-adhesive plastic film.   The method for winding a coated product according to claim 2, wherein the film material is embossed. The said embossing is given to the site | part which opposes the ear | edge edge part of the said coated product in the said film material, The winding method of the coated product of Claim 3 characterized by the above-mentioned.

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