JP2017170641A - Sheet for images - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve a sheet for images that solves the problems caused by coating and has excellent strength.SOLUTION: A sheet for images (1) is formed from a glass woven fabric that is woven from the warp (11) and the weft (12) of glass fiber yarns. In the sheet for images, a resin sheet (20,20) is stuck on at least one side of the woven glass fabric.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an image sheet formed from a glass woven fabric in which glass fiber yarns are woven as warps and wefts.

  Glass woven fabrics woven with glass fiber yarns as warp and weft have excellent non-flammability, so an image sheet is formed using this glass woven fabric, and the image sheet is used in a station premises, a hotel, Attempts have been made to use it for advertising panels placed in department stores and the like. And when forming the sheet | seat for an image using a glass woven fabric, Unexamined-Japanese-Patent No. 2007-203724 (patent document 1) coated resin on the glass woven fabric in order to print an image on the surface.

JP 2007-203724 A

  However, because the glass woven fabric has irregularities due to glass fibers, coating the resin on the glass woven fabric tends to cause uneven coating, and the resin will be coated in a state along the irregularities, There is a problem that the surface of the image sheet tends to be in a state in which minute irregularities remain.

  Further, since the glass woven fabric has a problem of low strength against pressure and tearing force, it is required to increase the strength of the image sheet using the glass woven fabric.

  Therefore, it is desired to solve the problems caused by coating and realize an image sheet having excellent strength.

The image sheet according to the present invention comprises:
An image sheet formed from a glass woven fabric woven from glass fiber yarn as warp and weft,
A resin sheet is attached to at least one surface of the glass woven fabric.

  According to this configuration, when only coating is performed, since the coating agent is applied along the surface of the glass woven fabric, the image sheet is likely to be uneven along the unevenness of the glass woven fabric. When the sheet is pasted, unlike the coating, it is difficult to follow the unevenness of the glass woven fabric, so that the unevenness is less likely to occur on the image sheet. Further, since the resin sheet has flexibility, the pressure and tearing force on the image sheet are suitably dispersed in the resin sheet, and the strength of the image sheet is increased. Thus, it is possible to eliminate the above-mentioned problems caused by performing only the coating and to increase the strength of the image sheet.

  Hereinafter, preferred embodiments of the image sheet according to the present invention will be described. However, the scope of the present invention is not limited by the preferred embodiments described below.

  As one aspect, it is preferable that a resin sheet is attached to both surfaces of the glass woven fabric.

  According to this configuration, the strength of the image sheet can be further increased by pasting the resin sheet on both surfaces of the glass woven fabric.

  As one aspect, it is preferable that the resin sheet has thermoplasticity and is bonded to the glass woven fabric by being pressure-bonded to the glass woven fabric in a heated state.

  The glass woven fabric has irregularities, and when a resin sheet is attached to the glass woven fabric, the resin sheet usually adheres only to the convex portion of the glass woven fabric, and the bonding area becomes small. The adhesive force of the resin sheet to the woven fabric is weakened. On the other hand, according to this structure, since the resin-made sheet having thermoplasticity is used and pressed against the glass woven fabric in a state of being softened by heating, the resin softened in the concave and convex portions of the glass woven fabric A sheet made of steel enters. In other words, by adopting a manufacturing method in which the resin sheet is pressure-bonded to the glass woven fabric in a heated state, for example, in a state where the outer surface of the resin sheet as shown in FIG. It is possible to obtain an image sheet having a cross-sectional shape in which the inner portion enters the concave portion of the glass woven fabric. Thereby, the adhesion area of the resin-made sheet | seat with respect to a glass woven fabric can be expanded, As a result, the adhesive force of the resin-made sheet | seat with respect to a glass woven fabric can be strengthened. Furthermore, only the inner side is deformed in accordance with the concave and convex portions of the glass woven fabric, and the outer surface of the resin sheet is almost flat, so that the image sheet is further less likely to be uneven.

Explanatory drawing about composition and manufacture of image sheet Cross section of image sheet

  An embodiment of an image sheet according to the present invention will be described with reference to the drawings. The image sheet 1 according to the present embodiment is used for an advertisement panel or the like that prints an image on the surface thereof and is disposed in a station premises, a hotel, a department store, or the like. And in order to suppress the expansion of a fire when a fire occurs at an installation place, it is assumed to have nonflammability. In addition, advertising images can be printed on the surface, and it has light transmissivity and light diffusibility so that the illumination light can be properly transmitted when illumination light is applied from the back side. Yes.

  First, the outline of the image sheet 1 according to the present embodiment will be described. As illustrated in FIGS. 1 and 2, the image sheet 1 according to the present embodiment has resin sheets 20 and 20 on both surfaces of a glass woven fabric 10. Is attached by an adhesive 30. More specifically, the resin sheets 20, 20 are bonded to both surfaces of the glass woven fabric 10 by being pressed against the glass woven fabric 10 while being heated by a general laminator 40, for example. Hereinafter, the image sheet 1 according to the present embodiment will be specifically described.

[Glass woven fabric]
The image sheet 1 of the present embodiment is formed from a single layer of glass woven fabric 10 in which glass fiber yarns, which are nonflammable materials, are woven as warp yarns 11 and weft yarns 12 so as to have nonflammability. Yes.

  Although the thickness and woven density of the glass fiber yarn used for the glass woven fabric 10 are not particularly limited, for example, in this embodiment, the glass woven fabric 10 is configured by using a large number of single fibers having a diameter of 4 to 9 μm. -40 TEX (TEX = 1000 × weight of yarn (g) / length of yarn (m)) is plain woven using a glass fiber yarn having a woven density of 40 to 100 warps / 25 mm, The weft 12 is composed of 30 to 100 pieces / 25 mm. By densely weaving such relatively thin glass fiber yarns, it is possible to obtain a glass woven fabric 10 having appropriate light transmittance and light diffusibility. Further, the thickness of the glass woven fabric 10 is 210 μm or less so that the thickness of the entire image sheet 1 becomes an appropriate thickness when the illumination light is transmitted when illumination light is applied from the back side of the image sheet 1. It is preferable that

[Resin sheet]
The resin sheets 20 and 20 may be formed of any material as long as an image can be printed on the surface by using some printing means such as an inkjet, but particularly those having thermoplasticity. Preferable examples include polyvinyl chloride and acrylic resin. And in this embodiment, the resin-made sheets 20 and 20 are formed from the polyvinyl chloride which has high flame retardance other than thermoplasticity. The thickness of the resin sheet 20 is 100 μm or less so that the thickness of the entire image sheet 1 becomes an appropriate thickness when the illumination light is transmitted when the illumination light is applied from the back side of the image sheet 1. And more preferably 50 μm or less.

[Image Sheet Manufacturing Method]
The image sheet 1 of the present embodiment is formed by bonding the glass woven fabric 10 and the resin sheets 20 and 20 together with an adhesive. The adhesive to be used is not particularly limited, but in this embodiment, a cold sealant 30 is used as an adhesive between the glass woven fabric 10 and the resin sheets 20 and 20.

  In addition, when the resin sheet 20 is attached to the glass woven fabric 10, as shown in FIG. 2, the glass woven fabric 10 has minute irregularities 13, which are caused by the warp 11 and the weft 12 being woven. Therefore, the resin sheet 20 is usually adhered only to the convex portion 13 of the glass woven fabric 10. If it does so, since an adhesion area will become small, the adhesive force of the resin sheet 20 with respect to the glass woven fabric 10 will become weak. Therefore, in the image sheet 1 of the present embodiment, the cold sealant 30 is applied to the adhesive surfaces of the resin sheets 20 and 20, and the glass woven fabric 10 and the resin sheets 20 and 20 are bonded together with the cold sealant 30. In addition, the resin sheets 20 and 20 are pressed against the glass woven fabric 10 in a heated state.

  As a result, as shown in FIG. 2, the resin sheets 20, 20 are softened to the concave portions 14 of the glass woven fabric 10 as a result of being pressure-bonded to the glass woven fabric while being softened by heating. Enters. Thereby, the adhesion area by the cold sealing agent 30 of the glass woven fabric 10 and the resin-made sheets 20 and 20 can be expanded, As a result, the adhesive force of the resin-made sheets 20 and 20 with respect to the glass woven fabric 10 is strengthened. Can do. Further, as shown in FIG. 2, only the inner portions of the resinous sheets 20, 20 are recessed in the unevenness of the glass woven cloth 10 by being pressed against the glass woven cloth 10 in a state where the resinous sheets 20, 20 are softened. The outer surfaces 20A and 20A of the resin sheets 20 and 20 are kept in a nearly flat state (substantially flat state). Thereby, it becomes difficult to produce unevenness in the image sheet 1. Thus, by adopting a manufacturing method in which the resin sheets 20 and 20 are pressed against the glass woven fabric 10 in a heated state, the outer surfaces 20A and 20A of the resin sheets 20 and 20 as shown in FIG. The image sheet 1 having a cross-sectional shape in which the inner portions of the resin sheets 20 and 20 enter the concave portion 14 of the glass woven fabric 10 can be obtained.

  As a method of pressure-bonding the resin sheets 20 and 20 to the glass woven fabric 10 in a heated state, for example, a glass in a state of being bonded to a general laminator 40 that can perform heating and pressure bonding at the same time with a cold sealant 30. It is possible to pass the woven fabric 10 and the resin sheets 20 and 20. Moreover, although the temperature which heats the resin-made sheet | seat 20 changes according to resin used for the resin-made sheet | seat 20, it should just be in the range of the heat-deformation temperature of the resin, for example, is formed from polyvinyl chloride. In the resin sheet 20, a temperature between 70 and 100 degrees is preferable, and a temperature around 80 degrees is particularly preferable. In addition, the method of crimping | bonding to the glass woven fabric 10 in the state which heated the resin sheets 20 and 20 is not restricted to use of the laminator 40, but can crimp to the glass woven fabric 10 in the state which heated the resin sheets 20. FIG. If it is a method, it will not specifically limit.

  The total thickness of the image sheet 1 is not particularly limited, but is preferably about 90 to 300 μm so that the illumination light is transmitted when the illumination light is applied from the back side of the image sheet 1.

Although not shown, the glass woven fabric 10 of the present embodiment is hardened by impregnation with starch or urethane resin after weaving so that the glass fiber yarn does not shift. Further, an acrylic resin (for example, an acrylic vinyl chloride copolymer resin) containing an inorganic filler such as titanium oxide (TiO ₂ ) or silica is coated thereon. As a result, the glass woven fabric 10 has appropriate light transmissivity and light diffusibility, and the entire surface becomes milky white, which is suitable as a base for printing. In addition, the resin sheet 20 to be attached to the glass woven fabric 10 is required to have a thickness that can fill at least the irregularities of the glass woven fabric 10; impregnation with starch or urethane resin or acrylic resin. Since the unevenness of the glass woven fabric 10 is smoothed to some extent by this coating, the thickness of the resin sheet 20 required to fill the unevenness of the glass woven fabric 10 can be reduced. As a result, the thickness of the entire image sheet 1 can be kept thin while performing coating or the like.

  Note that this is merely an example, and the glass woven fabric 10 does not necessarily need to be impregnated with starch or urethane resin and coated with acrylic resin, and only one or neither of them is performed. May be. In addition, in the acrylic resin coating, a plurality of layers may be coated. In addition, a material used for coating or the like may be selected as appropriate, and the surface of the glass woven fabric 10 may be a translucent color.

  In the above-described embodiment, the configuration in which the resin sheets 20 and 20 are attached to both surfaces of the glass woven fabric 10 has been described as an example. However, the resin sheet 20 may be attached to only one surface of the glass woven fabric 10. . Moreover, you may use a hot-melt-adhesive as an adhesive agent. As a result, the adhesive portion is hardened when the temperature returns to room temperature, and thus durability is improved.

  In the above-described embodiment, the glass woven fabric 10 is obtained by plain weaving the warp yarn 11 and the weft yarn 12. However, the present invention is not limited to this, and the glass woven fabric is not particularly limited as long as it is formed by weaving the warp yarn 11 and the weft yarn 12. Not. For example, the glass woven fabric 10 is woven in a state where the crossing angle between the warp 11 and the weft 12 is an angle other than a right angle (for example, 60 degrees), and the warp 11 and the weft 12 are further woven into the glass woven fabric 10 (for images). The sheet 1) extends in a direction that is not orthogonal to both the vertical side and the horizontal side (for example, a state where the crossing angle between the warp 11 or the weft 12 and the vertical side or the horizontal side is 30 degrees or 60 degrees). It may be formed to increase the strength of the glass woven fabric 10.

  Regarding other configurations, it should be understood that the embodiments disclosed herein are illustrative in all respects and that the scope of the present invention is not limited thereby. Those skilled in the art will readily understand that modifications can be made as appropriate without departing from the spirit of the present invention. Accordingly, other embodiments modified without departing from the spirit of the present invention are naturally included in the scope of the present invention.

  The present invention can be used for an image sheet, for example.

DESCRIPTION OF SYMBOLS 1 Image sheet 10 Glass woven fabric 11 Warp 12 Weft 20 Resin sheet

Claims (3)

An image sheet formed from a glass woven fabric woven from glass fiber yarn as warp and weft,
An image sheet formed by attaching a resin sheet to at least one side of the glass woven fabric.   The image sheet according to claim 1, wherein a resin sheet is attached to both surfaces of the glass woven fabric.   The image sheet according to claim 1, wherein the resin sheet has thermoplasticity and is bonded to the glass woven fabric by being pressure-bonded to the glass woven fabric in a heated state. .

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