JP5812601B2 - Thin film sheet - Google Patents

Description

  The present invention relates to a thin film sheet.

  In recent years, a wide variety of thin film sheets have been used, such as a sweat spot preventing sheet used for preventing sweat spots on clothes and a protective sheet used for protecting liquid crystal screens. Such a thin film sheet is provided on one surface of a base material in a thin film shape to be attached to an adherend such as clothing or a liquid crystal screen at the time of use, and for attaching the base material to the adherend. It consists of an adhesive layer, a release sheet for protecting the adhesive layer until use, and a protective sheet for protecting the other surface of the substrate until use.

  Here, as an example of such a thin film sheet, a sweat spot prevention sheet for clothing will be taken up. A person's armpit is easy to sweat, and a sweat-removing pad as shown in Patent Document 1 has been used in order to prevent the sweat from adhering to clothing as sweat spots. This sweat pad has an absorbent layer that absorbs sweat from the surface that touches the skin, a waterproof film layer that prevents the absorbed sweat from adhering to clothing, an adhesive layer for attaching the absorbent layer and the waterproof film layer to clothing, It is formed by laminating release sheets that protect the adhesive surface of the adhesive layer. Such a sweat removing pad is required to absorb sweat, but is also required to be formed with such a thin thickness that the user does not feel uncomfortable. Therefore, as shown in FIG. 10 to FIG. 12, the absorbent layer is not provided, and the base material 101 for preventing sweat spots, the adhesive layer 102 for attaching the base material 101 to clothing, and the adhesive layer 102 are protected. A sweat spot prevention sheet 100 comprising a release sheet 103 and a protective sheet 104 for protecting the surface of the substrate has been developed. In the illustrated example, the sweat spot preventing sheet 100 is provided with a gripping portion 105 on the protective sheet 104. In use, the gripping portion 105 is peeled off after the release sheet 103 is peeled off and the base material 101 is attached to the clothing with the adhesive layer 102. The protective sheet 104 is peeled off from the substrate 101 with

Patent No. 3,294,459

  However, in the sweat smear prevention sheet 100 as shown in FIGS. 10 to 12, all the protective sheets 104 are peeled off from one end to the other end of the base material 101 at a time. In this way, when all of the protective sheet 104 is peeled off from the base material 101 at a time, if the base material 101 is difficult to stick to the clothing, the base material 101 is peeled off from the clothing during the peeling of the protective sheet 104, and the protective sheet 104. There was a problem that it was difficult to peel off. Further, if the protective sheet 104 is forcibly removed, the base 101 is very thin in this type of sweat spot preventing sheet 100, so that air may enter between the base 101 and the clothing, There is a problem that the adhesive layers 102 stick to each other and wrinkles occur in the base material 101.

  The present invention has been made to solve the above-described problems, and can easily and cleanly peel the release sheet and the protective sheet from the base material, and easily and cleanly attach the base material to the adherend. A thin film sheet is provided.

The thin film sheet according to the present invention includes a base material composed of a thin film, an adhesive layer provided on one surface of the base material for attaching the base material to an adherend, and a peelable covering the adhesive layer A thin film sheet comprising a release sheet and a peelable protective sheet covering the other surface of the base material via an adhesive, wherein the base material is liquid-impermeable, and the release sheet is the base It consists of a plurality of release sheet pieces that divide and cover one surface of the material, and between each release sheet piece is provided a first dividing line that separates the covering region of one surface of the base material, The protective sheet is composed of a plurality of protective sheet pieces that divide and cover the other surface of the base material, and a second region that divides a covering region of the other surface of the base material between the protective sheet pieces. A dividing line is provided, and the first dividing line includes the second dividing line and the base material. It is provided in sandwiched therebetween displaced position, wherein the substrate attached to the inner side portion of the garment, sweat clothes is used as a sweat Jimishito to prevent sticking.

  When the peeling sheet and the protective sheet are peeled off from the thin film sheet, the thin film sheet having the above-described configuration is formed by bending the thin film sheet up and down, and using the end portions on the respective dividing line sides of the peeling sheet pieces and the protective sheet pieces as base materials. The release sheet pieces and the protective sheet pieces are peeled toward the edge side of the base material while holding the end portions. Therefore, since the protective sheet is not peeled off from the edge side of the base material, the problem that the base material is peeled off from the adherend during peeling of the protective sheet does not occur as in the case of the conventional sweat spot preventing sheet described above. The protective sheet can be peeled off easily and cleanly.

  Here, when the first dividing line and the second dividing line are provided at the same position (completely matched) across the base material, the base material is very thin. There arises a problem that the base material is easily torn at the position of the line. In addition to the fact that the position of each lane marking is the same across the substrate, if the lane markings are substantially straight across the width of the substrate, the substrate will be easily bent at the location of the lane marking. As a result, the thin film sheet cannot be maintained in a flat sheet shape, and it becomes difficult to peel off the release sheet. When the one release sheet piece is peeled off and the substrate is attached to the adherend, the exposed adhesive layer is There arises a problem that the substrate cannot be adhered to the adherend cleanly due to unintentionally sticking to a place other than the target place of the adherend or the adhesive layers of the base material sticking together. However, in the thin film sheet, since the first dividing line on the release sheet side and the second dividing line on the protective sheet side are provided at positions shifted with the substrate interposed therebetween, the substrate is positioned at each dividing line. And at least partially covered by a release sheet or a protective sheet. Therefore, it is possible to prevent the base material from tearing at the position of the dividing line, and the base material is not easily bent and is maintained in a flat sheet shape, so that the release sheet can be easily peeled off, and the base material is adhered. Can be easily and neatly pasted.

  In the above-described configuration of the present invention, the “partition line” means that the end of the first release sheet piece and the end of the second release sheet piece are in contact with each other. When the end of the first release sheet piece and the end of the second release sheet piece overlap each other, it points to the end of each release sheet piece in contact with the substrate. “Position” means that the first dividing line and the second dividing line do not coincide with each other across the substrate. These points have the same meaning throughout this specification.

  In the thin film sheet, each of the release sheet and the protective sheet is composed of one sheet, and the release sheet piece and the protective sheet piece can be formed by forming at least one slit in the sheet. And a 1st division line and a 2nd division line can be provided in the boundary of each peeling sheet piece and each protection sheet piece. By having this configuration, each end of each release sheet piece and each protective sheet piece on the parting line side is maintained in a state of being firmly adhered to the base material. And it can prevent that a protection sheet peels. Moreover, in the thin film sheet having the above configuration, each release sheet piece and each protection sheet piece are formed by providing a slit in the release sheet and the protection sheet, but the position where the slit is provided for the release sheet and the protection sheet, In other words, the positions of the first dividing line and the second dividing line are shifted with respect to the substrate. Therefore, for example, when a slit is formed on the release sheet and the protective sheet using a cutter or the like, the base material is not subjected to the load due to slit formation at the same position from both the front and back sides, so the slit is the same on the front and back sides of the base material Compared with the case where it is provided at the position, it is possible to prevent the base material from being damaged due to the slit formation.

  Moreover, in the said thin film sheet, it can be set as the structure which does not provide a 2nd division line on the coating | coated area | region of the base material which the release sheet piece peeled off first among several release sheet pieces of a release sheet. .

  The thin film sheet first peels off the release sheet piece to be peeled first (hereinafter referred to as “primary release sheet piece”) from the base material, and the part where the primary release sheet piece of the base material has been peeled off is attached to the adherend. After affixing, a base material is affixed on a to-be-adhered thing, peeling off the remaining peeling sheet piece. Thereafter, the protective sheet protecting the other surface of the substrate is peeled off and used. At this time, when the second release line provided on the other surface of the base material is present on the covering region covered by the primary release sheet piece when the primary release sheet piece is peeled from the base material, the primary release sheet piece During peeling, the substrate may be bent at the position of the second dividing line. Therefore, the thin film sheet cannot be maintained in a flat sheet shape, and when the adhesive layers are adhered to each other or when the base material is adhered to the adherend, the exposed adhesive layer is not intended and the location other than the purpose of the adherend There is a possibility that it will be difficult to stick the substrate to the adherend cleanly. However, with the above configuration, even if the primary release sheet piece is peeled off, there is no second parting line in the covering region covered by the primary release sheet piece. The base material is not bent. Therefore, the problems as described above can be prevented, and the substrate can be easily and cleanly attached to the adherend. Further, the remaining release sheet piece is peeled off from the substrate after the portion where the primary release sheet piece has been peeled off is attached to the adherend, and at the same time, the substrate is attached to the adherend. Therefore, even if the protective sheet is lifted from the base material at the position of the second dividing line provided on the coating area of the remaining release sheet, the base material is kept clean without causing wrinkles or the like. Can be pasted on.

  Furthermore, in the thin film sheet, the first dividing line and the second dividing line are preferably formed in a straight line parallel to each other.

  Moreover, in the said thin film sheet, while a peeling sheet consists of a 1st peeling sheet piece and a 2nd peeling sheet piece, a protective sheet can consist of a 1st protective sheet piece and a 2nd protective sheet piece. . And the 1st division line provided between the 1st release sheet piece and the 2nd release sheet piece, and the 2nd division line provided between the 1st protection sheet piece and the 2nd protection sheet piece The distance between and can be at least 1 cm. By having this structure, when the base material is curved at the position of the first section line and each release sheet piece is peeled off, the first and second protection are performed at the position of the second section line due to the curvature of the base material. It is possible to prevent the sheet piece from floating from the base material. Therefore, as a result of preventing the occurrence of wrinkles on the base material when peeling each release sheet piece, each release sheet piece can be easily peeled off from the base material, and the base material can be easily adhered in a clean state. Can be pasted on.

  Moreover, in the said thin film sheet, the adhesive force of the adhesion layer provided in one surface of a base material can be made larger than the adhesive force of the adhesive used when a protective sheet is affixed on a base material. With this configuration, since the force that the base material sticks to the adherend becomes larger than the force that the protective sheet sticks to the base material, the base material is attached to the adherend after the base material is attached to the adherend. The protective sheet can be easily peeled off from the base material without being peeled off.

  According to the thin film sheet according to the present invention, the release sheet and the protective sheet can be easily and cleanly peeled off from the base material, and the base material can be easily and cleanly attached to the adherend.

It is a top view which shows one Embodiment of the thin film sheet of this invention. It is AA sectional drawing of the thin film sheet of FIG. 2 is a plan view of a thin film sheet used in Example 1. FIG. 6 is a plan view of a thin film sheet used in Example 2. FIG. 6 is a plan view of a thin film sheet used in Example 3. FIG. 6 is a plan view of a thin film sheet used in Example 4. FIG. 6 is a plan view of a thin film sheet used in Example 5. FIG. 6 is a plan view of a thin film sheet used in Example 6. FIG. It is a top view of the thin film sheet used in the comparative example. It is a top view which shows the peeling sheet side of the conventional sweat spot preventing sheet. It is a top view which shows the protective sheet side of the conventional sweat spot preventing sheet. It is BB sectional drawing of the sweat spot preventing sheet of FIG.

  Hereinafter, an embodiment of a thin film sheet according to the present invention will be described with reference to the accompanying drawings. Here, a case will be described in which the thin film sheet of the present invention is applied to a sweat spot-preventing sheet for preventing sweat from adhering to clothing by attaching the thin film sheet of the present invention (particularly on an article to be adhered) to the armhole. FIG. 1 is a plan view of the thin film sheet 1 of the present embodiment, FIG. 1 (a) shows a view seen from the release sheet side, and FIG. 1 (b) shows a view seen from the protective sheet side. ing. Moreover, FIG. 2 shows sectional drawing of the thin film sheet 1 of FIG. As shown in FIGS. 1 and 2, the thin film sheet 1 is formed of a base material 3, an adhesive layer 5, a release sheet 10, and a protective sheet 20. The thin film sheet 1 is attached to a garment by peeling off the release sheet 10 from the base material 3, attaching the base material 3 to the clothing via the adhesive layer 5, and then peeling off the protective sheet 20 from the base material 3. It is what is done.

  A transparent or translucent film having a thickness of about 10 to 200 μm is used for the substrate 3. Thus, since the base material 3 is very thin, even if it is a case where the base material 3 is attached to clothing, the user does not feel uncomfortable, and the base material 3 is transparent or translucent. The base material 3 does not show through from the outside of the clothing. Furthermore, this base material 3 has liquid impermeability, and can thereby reliably prevent sweat from adhering to clothing. Although it does not specifically limit as a material of the film used for the base material 3, The polyurethane film which follows the stretchability of clothing easily as a sweat sweat spot prevention sheet | seat of clothing is preferable. In the plan view of FIG. 1, the base material 3 is provided with a pair of left and right constricted portions 7 slightly below the center, and is divided into two upper and lower regions 1 a and 1 b via the constricted portion 7. The constricted portion 7 is a position of a neckline portion when the base material 3 is attached to the clothing, and the region 1a is attached to the garment side of the clothing, and the region 1b is attached to the sleeve side of the clothing (hereinafter referred to as “region 1a”). Is referred to as “garment side region 1a”, and “region 1b” is referred to as “sleeve side region 1b”). The body side region 1a is formed to have a larger area than the sleeve side region 1b, and can appropriately correspond to the side sweating position. Thus, by providing the constriction part 7 in the base material 3, when the base material 3 is affixed to clothing, the attachment position of the base material 3 can be easily achieved by matching the constriction part 7 to the armhole part of the clothing. The base material 3 can be appropriately affixed to clothing. Moreover, it becomes easy to affix the base material 3 also to a thin sleeve part by making the area of the sleeve side area | region 1b smaller than the body side area | region 1a.

  On one surface of the substrate 3, an adhesive layer 5 for attaching the substrate 3 to clothing is provided. The pressure-sensitive adhesive used for the pressure-sensitive adhesive layer 5 is not particularly limited as long as it can be applied to clothes and the like. However, in the case of a sweat spot prevention sheet, the adhesive strength is not reduced by sweat. Agents are preferred.

  On the adhesive layer 5 of the base material 3, a release sheet 10 that protects the adhesive layer 5 until being attached to clothes and is peelable from the adhesive layer 5 when attached is attached. The release sheet 10 is configured by applying a release agent such as a silicone resin to a plastic film, a fiber sheet, a paper sheet, or the like, for example, and the release agent side is attached to the adhesive layer 5. In particular, in order to protect the base material 3 formed as a thin film until it is attached to clothes, and to maintain the thin film sheet 1 in a flat sheet shape so that the base material 3 can be easily attached to clothes, the release sheet 10 includes: It is preferably formed thicker than the base material 3 or made of a material harder than the base material 3. In this embodiment, the release sheet 10 includes two release sheet pieces, a first release sheet piece 11 and a second release sheet piece 12, and the first release sheet piece 11 and the second release sheet piece 12 The one surface of the base material 3 is divided and covered. For example, the first release sheet piece 11 and the second release sheet piece 12 are constituted by a single sheet having the same shape as that of the substrate 3 as the release sheet 10, and slits are formed on the sheet using a cutter or the like. Formed by forming and dividing the sheet into two parts.

  At the boundary between the first release sheet piece 11 and the second release sheet piece 12, a first dividing line 13 that partitions the covering region of one surface of the base material 3 covered with each release sheet piece extends. By bending the substrate 3 with the first dividing line 13 as a boundary, the one end of the first release sheet piece 11 and the second release sheet piece 12 on the first dividing line 13 side is lifted from the substrate 3. The first release sheet piece 11 and the second release sheet piece 12 can be peeled from the substrate 3. As shown in FIG. 1A, the first dividing line 13 is preferably formed in a straight line because it is easy to form. However, the first dividing line 13 is not necessarily limited to this, and is not limited to a curved line or a wave. It is also possible to form in various shapes such as a mold shape.

  A protective sheet 20 that protects the base material 3 until the time of use and can be peeled off from the base material 3 is attached to the surface opposite to the adhesive layer 5 of the base material 3 (the other surface of the base material 3). ing. The protective sheet 20 is configured by applying a weak adhesive to a plastic film, a fiber sheet, a paper sheet, or the like, for example, and the protective sheet 20 is attached to the substrate 3 via the adhesive. It is attached. Further, in order to protect the base material 3 formed as a thin film until it is attached to clothes and to maintain the thin film sheet 1 in a flat sheet shape so that the base material 3 can be easily attached to clothes, the protective sheet 20 is also Similarly to the release sheet 10, it is preferably formed thicker than the base material 3 or made of a material harder than the base material 3. It is preferable that the adhesive force of the adhesive which affixes this protective sheet 20 on the base material 3 is smaller than the adhesive force of the adhesive layer 5 which attaches the above-mentioned base material 3 to clothing. Thereby, when the protective sheet 20 is peeled from the base material 3 after the base material 3 is attached to the clothing, the protective sheet 20 can be easily peeled off from the base material 3 without the base material 3 being peeled from the clothing.

  In this embodiment, the protective sheet 20 is composed of two protective sheet pieces, a first protective sheet piece 21 and a second protective sheet piece 22, and the first protective sheet piece 21 and the second protective sheet piece 22 The other surface of the base material 3 is divided and covered. For example, the first protective sheet piece 21 and the second protective sheet piece 22 are formed of a single sheet having the same shape as that of the base 3 and the slit is formed on the sheet using a cutter or the like. Formed by forming and dividing the sheet into two parts.

  At the boundary between the first protective sheet piece 21 and the second protective sheet piece 22, a second dividing line 23 that partitions the covered region of the other surface of the base material 3 covered with each protective sheet piece extends. The base material 3 is curved in the opposite direction to the case where the above-described peeling sheet piece is peeled off with the second dividing line 23 as a boundary, and the second dividing line of the first protective sheet piece 21 and the second protective sheet piece 22 is obtained. The first protective sheet piece 21 and the second protective sheet piece 22 can be peeled from the base material 3 by lifting one end portion on the 23 side from the base material 3. As shown in FIG. 1B, the second dividing line 23 is preferably formed in a straight line because it is easy to form. However, the second dividing line 23 is not necessarily limited to this, and is not limited to a curved line or a wave. It is also possible to form in various shapes such as a mold shape.

  The first dividing line 13 and the second dividing line 23 described above are provided at different positions without overlapping each other with the base material 3 interposed therebetween. In the present embodiment, the first dividing line 13 and the second dividing line 23 are provided so as not to cross each other with the base material 3 interposed therebetween, and more preferably, the first dividing line 13 and the first dividing line 13 The two division lines 23 are provided in parallel, and the first division line 13 and the second division line 23 are provided at a distance d (shown in FIG. 1B) of at least 1 cm or more.

  When the distance d between the 1st division line 13 and the 2nd division line 23 is too near, when making the base material 3 curve in the position of the 1st division line 13, and peeling each peeling sheet piece from the base material 3, When the protective sheet 20 is lifted from the base material 3 at the position of the second dividing line 23 on the back side (the protective sheet 20 side) of the base material 3 due to the curvature of the base material 3, each peeling sheet piece is peeled off from the base material 3. In the vicinity of the first parting line 13, the adhesive layers 5 may adhere to each other and wrinkles or the like may occur in the base material 3. However, as described above, the distance d between the first dividing line 13 and the second dividing line 23 is separated by 1 cm or more, so that when the release sheet pieces are peeled from the substrate 3, the second dividing line 23 The protective sheet 20 is prevented from being lifted from the base material 3 at the position, whereby the base material 3 is firmly adhered to the protective sheet 20 at the time of peeling of each release sheet piece. Each peeling sheet piece can be easily and cleanly peeled off from the base material 3 without the occurrence of the above. In the present embodiment, the first dividing line 13 and the second dividing line 23 are provided in parallel. However, the first dividing line 13 and the second dividing line 23 are not necessarily required to be in parallel. When not provided, the distance between the first dividing line 13 and the second dividing line 23 indicates the length of the shortest line segment connecting the points on the two lines.

  In addition, the second parting line 23 on the back side of the base material 3 (protective sheet 20 side) is provided on the covering region covered by the second release sheet piece 12 on the base material 3 front side (release sheet 10 side). It is preferable that the first release sheet piece 11 is not provided on the covering region. Here, in the thin film sheet 1 of the present embodiment, first of the release sheet pieces 11, 12, the first release sheet piece 11 that is provided on the side 3 a side of the base material 3 is removed from the base material 3. After peeling off and pasting the part of the base material 3 from which the first release sheet piece 11 has been peeled off, the second release sheet piece 12 provided on the remaining sleeve side region 1b side is removed from the base material 3. The base material 3 is affixed on clothes by peeling. At this time, when the first release sheet piece 11 to be peeled off first is peeled off from the base material 3, the second dividing line 23 provided on the back side of the base material 3 covers the covered area covered by the first release sheet piece 11. Since the base material 3 is a very thin film, the base material 3 is bent at the position of the second dividing line 23 while the first release sheet piece 11 is being peeled off. Thus, the thin film sheet 1 cannot be maintained in a flat sheet shape, and the exposed adhesive layers 5 stick to each other, or when the base material 3 is pasted on clothes, the adhesive layer 5 is a place other than the purpose of clothes. It may be difficult to stick the base material 3 to clothes in a clean state. On the other hand, when the second parting line 23 exists on the covering region covered by the second release sheet piece 12 and does not exist on the covering region covered by the first release sheet piece 11, the first Since the base material 3 does not bend during the peeling of the release sheet piece 11, the base material 3 can be easily and cleanly attached to clothes.

  From the above, the first dividing line 13 and the second dividing line 23 are separated from each other by a distance d of 1 cm or more, and the second dividing line 23 is peeled off at the earliest side opposite to the substrate 3. It is not provided on the covering region covered by the release sheet piece (the first release sheet piece 11 provided in the body side region 1a in this embodiment), that is, the sleeve side from the first dividing line 13 More preferably, it is set so as to be provided on the region 1b side.

  In the thin film sheet 1 having the above-described configuration, the adhesive layer 5 is formed on one surface of the substrate 3 having a very thin thickness, and the release sheet 10 formed of one sheet is attached onto the adhesive layer 5. The protective sheet 20 formed of one sheet is attached to the other surface of the substrate 3. The thin film sheet 1 thus formed is placed in one direction on the production line, and a slit is formed on the release sheet 10 and the protective sheet 20 using a cutter or the like while flowing on the production line. Thus, the first and second release sheet pieces 11 and 12, the first and second protective sheet pieces 21 and 22, and the first and second dividing lines 13 and 23, respectively, are formed.

  In the formation process of the thin film sheet 1 described above, a position where the slit is formed with respect to the release sheet 10 (position where the first dividing line 13 is provided) and a position where the slit is formed with respect to the protective sheet 20 (second dividing line) 23), the release sheet 10 and the protection sheet 20 are cut by a cutter or the like to form the release sheet pieces 11 and 12 and the protection sheet pieces 21 and 22, respectively. Even if it does, the base material 3 does not receive the load by this cutting | disconnection in the same position of the both surfaces. Thus, in this embodiment, since the load by cutting (slit formation) is concentrated on one place of the base material 3, the slit is formed as compared with the case where the slit is formed at the same position on the front and back of the base material 3. It can prevent that the intensity | strength of the base material 3 in a position becomes weak too much, and can prevent the problem that the base material 3 is torn or damaged by slit formation.

  Further, when the base material 3 is affixed to the clothing, the left and right constricted portions 7 of the base material 3 are positioned at the armhole portions of the clothing, so that the left and right constricted portions 7 are attached to the release sheet 10. It is preferable to form slits in a straight line to provide the first dividing lines 13 because the base material 3 can be easily attached to clothing. Further, in order to make the manufacture of the thin film sheet 1 easier, slits are formed linearly and in parallel with each of the release sheet 10 and the protective sheet 20, so that the linear firsts parallel to each other are formed. It is preferable to provide a dividing line 13 and a second dividing line 23. Thereby, in the production line, it is only necessary to move a cutter or the like for forming slits linearly with respect to the thin film sheet 1, and the orientation of the thin film sheet 1 is determined when the slits are provided in the release sheet 10 and the protective sheet 20. Since it is possible to save time and effort to change each time, it is possible to easily form slits in the release sheet 10 and the protective sheet 20.

  Next, a method for sticking and using the thin film sheet 1 having the above-described configuration to clothing will be described. First, in order to affix the garment side region 1a of the base material 3 to clothing, the thin film sheet 1 is curved at the position of the first dividing line 13 with the protective sheet 20 side inside, and the garment side region of the base material 3 The edge part by the side of the 1st division line of the 1st peeling sheet piece 11 which covers 1a is lifted. And the edge part is pinched and the 1st peeling sheet piece 11 is peeled, and the base material 3 is affixed on clothing. Next, similarly, the thin film sheet 1 is bent and the end of the second parting sheet side of the second release sheet piece 12 is lifted from the base material 3, and the second release sheet piece 12 is peeled off. Affix 3 whole to clothing. At this time, when the first release sheet piece 11 on the side of the body side area 1a to be peeled off first is peeled off from the base material 3, the back side of the base material 3 is covered by the first release sheet piece 11 Since the 2nd division line 23 is not provided on the top, the base material 3 does not bend | fold according to the thinness of the base material 3 and the thickness of the protective sheet 20. FIG. Moreover, when peeling the 2nd peeling sheet piece 12 from the base material 3, the part 1a side part of the base material 3 has already been affixed on clothes, and it peels off the 2nd peeling sheet piece 12, and is a base material. 3 is affixed to clothing, even if the base material 3 is lifted from the protective sheet 20 at the position of the second dividing line 23, the base material 3 can be easily kept clean without causing wrinkles or the like. Can be affixed to clothes.

  Thereafter, the thin film sheet 1 is bent at the position of the second dividing line 23 with the adhesive layer 5 side inside, and the first protective sheet piece 21 and the second protective sheet piece 22 are peeled off from the base material 3, It will be in use. At this time, the first protective sheet piece 21 and the second protective sheet piece 22 are peeled from the end on the second dividing line 23 side toward the outer edge side of the substrate 3. Accordingly, the protective sheet 20 is peeled off easily and cleanly without peeling off the base material 3 from the clothes when the protective sheet 20 is peeled off as in the case of the conventional sweat spot preventing sheet made of a single sheet. Can do. Moreover, since the adhesive force of the adhesive layer 5 which affixes the base material 3 to clothing is larger than the adhesive force of the adhesive which affixes the protection sheet 20 to the base material 3, the base material 3 does not peel from clothing, and a protective sheet 20 can be easily and cleanly peeled off from the substrate 3.

  As mentioned above, although one Embodiment of this invention was described, this invention is not limited to this Embodiment, A various change is possible unless it deviates from the meaning. For example, the shape of the thin film sheet 1 is not limited to a substantially gourd-shaped shape as illustrated, and may be various shapes that can be attached to clothing such as a square shape, a circular shape, or a substantially elliptical shape. Moreover, in the said embodiment, although the area of the body side area | region 1a of the base material 3 is made larger than the area of the sleeve side area | region 1b, it is also possible to make this into the same area. Further, the constricted portion 7 is not necessarily provided.

  In the above embodiment, the first and second release sheet pieces 11 and 12 and the first and second protection sheet pieces 21 and 22 are cut by cutting the release sheet 10 and the protection sheet 20 into two parts. Although formed, it may be cut into three or more to form three or more sheet pieces. Further, each sheet piece is not limited to one formed by cutting one sheet, and two or more sheet pieces are prepared in advance for each surface of the base 3, and each surface of the base 3 Each sheet piece may be stuck so as to divide and cover. At this time, the end portions of the sheet pieces may be in contact with each other or may overlap. When the end portions of the respective sheet pieces overlap, the end portions of the respective sheet pieces that are in contact with the base material become the dividing lines in the above-described embodiment.

  Moreover, in the said embodiment, although the thin film sheet was used as an anti-sweat sheet, it is not limited to this, For example, it can also be used as a protective sheet of liquid crystal screens, such as a mobile phone, a liquid crystal television, and a liquid crystal display of a personal computer. It is. At this time, the shape of the substrate, the material of the film used for the substrate, the type of pressure-sensitive adhesive, the material of the release sheet and the protective sheet can be appropriately selected according to the purpose and application.

Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples. Six examples (implementation) in which the layer structure of the thin film sheet (release sheet, adhesive layer, base material and protective sheet) shown in the above embodiment is shared, and the positions of the first and second dividing lines are changed. Examples 1 to 6) and one comparative example were prepared, and the feeling of use of the thin film sheet was evaluated when worn and used on clothing. In addition, each layer of each Example 1-6 and the thin film sheet of a comparative example is formed with the following material and thickness, respectively.
Base material: Impermeable polyurethane film, 30 μm
Adhesive layer: Water-insoluble acrylic adhesive, 10 μm
Release sheet: Paper sheet coated with silicon resin, 120 μm
Protective sheet: Paper sheet coated with PVA as an adhesive, 120 μm

  The evaluation of the feeling of use is performed on 6 subjects, and the ease of peeling of the release sheet and the protective sheet from the base material and the ease of attaching the base material to clothing (attachment) are classified into three levels. Evaluation was carried out by calculating an average value of 6 persons of evaluation (0 to 2 points). The contents of the three-stage evaluation are evaluated as 2 points for ease of peeling from the base material of the release sheet and the protective sheet, 1 point when it is easy to peel off, 1 point when it is difficult to peel off, and 0 point when it is difficult to peel off. . In addition, the ease of attaching the base material to clothing is evaluated as 2 points when it is easy to attach, 1 point when neither can be said, and 0 point when it is difficult to peel off.

First, Examples 1 to 6 will be described.
Example 1
In Example 1, as shown in FIGS. 3A and 3B, the first dividing line 13 is formed in a straight line connecting the left and right constricted portions 7 of the base material 3 with respect to the release sheet 10. The two division lines 23 are formed with a distance of 1.5 cm from the protective sheet 20 on the sleeve side region 1b side of the base material 3 relative to the first division line 13.
(Example 2)
In Example 2, as shown in FIGS. 4A and 4B, the second dividing line 23 is formed in a straight line connecting the left and right constricted portions 7 of the base material 3 with respect to the protective sheet 20. The first dividing line 13 is formed with respect to the release sheet 10 at a distance of 1.5 cm from the second dividing line 23 to the body side region 1a side of the substrate 3.
(Example 3)
In Example 3, as shown in FIGS. 5A and 5B, the first dividing line 13 is formed in a straight line connecting the right and left constricted portions 7 of the base material 3 with respect to the release sheet 10. The two dividing lines 23 are formed with respect to the protective sheet 20 at a distance of 1.5 cm from the first dividing line 13 to the body side region 1 a side of the base material 3.
Example 4
In Example 4, as shown in FIGS. 6A and 6B, the second dividing line 23 is formed in a straight line connecting the left and right constricted portions 7 of the base material 3 with respect to the protective sheet 20. The first dividing line 13 is formed with respect to the release sheet 10 at a distance of 1.5 cm from the second dividing line 23 to the sleeve side region 1b side of the substrate 3.
(Example 5)
In Example 5, as shown in FIGS. 7A and 7B, the first dividing line 13 is formed in a straight line connecting the left and right constricted portions 7 of the base material 3 with respect to the release sheet 10. The two dividing lines 23 are formed with a distance of 1.0 cm from the protective sheet 20 on the sleeve side region 1b side of the base material 3 relative to the first dividing line 13.
(Example 6)
In Example 6, as shown in FIGS. 8A and 8B, the first dividing line 13 is formed in a straight line connecting the left and right constricted portions 7 of the base material 3 with respect to the release sheet 10. The two division lines 23 are formed with a distance of 0.5 cm from the first division line 13 to the sleeve side region 1b side of the protective sheet 20 with respect to the protective sheet 20.

Next, a comparative example will be described.
(Comparative example)
As shown in FIGS. 9A and 9B, the thin film sheet 100 ′ of the comparative example has the same shape as the conventional thin film sheet 100 shown in FIG. However, the protective sheet 20 is not formed with a dividing line, and a grip portion 24 used for peeling the protective sheet 20 is provided at the end.

  The evaluation results of Examples and Comparative Examples are shown in Table 1.

  As shown in Table 1, in Examples 1 to 6, the result is that the release sheet 10 and the protective sheet 20 are easier to peel off from the base material 3 and the base material 3 is easier to stick to clothing as compared with the comparative example. It was. Among Examples, when Examples 1 to 5 and Example 6 are compared, the separation sheet 10 (by separating the distance between the first dividing line 13 and the second dividing line 23 by 1 cm or more is used. As a result, the first and second release sheet pieces 11 and 12) were particularly easily peeled off from the substrate 3. If the distance between the 1st division line 13 and the 2nd division line 23 is too near like Example 6, the base material 3 will be curved in the position of the 1st division line 13, and each release sheet piece will be When trying to peel 11 and 12 from the base material 3, the protective sheet 20 is lifted from the base material 3 at the position of the second parting line 23 on the back side of the base material 3, whereby the adhesive layer is near the first parting line 13. This is because the five sheets are bonded to each other and wrinkles or the like are generated on the base material 3, making it difficult to cleanly remove the release sheet pieces 11 and 12 from the base material 3. From this result, it was confirmed that it is preferable that the first dividing line 13 and the second dividing line 23 be separated from each other by 1 cm or more.

  Furthermore, when Examples 1, 2, and 5 are compared with Examples 3 and 4, by adopting a configuration in which the first parting sheet 11 that peels off the second dividing line 23 first is not provided on the covering region, The result that it was easy to affix the base material 3 on clothes was obtained. This is because, as in Examples 3 and 4, when the first release sheet piece 11 to be peeled first is peeled off from the base material 3, the second parting line 23 on the back side of the base material 3 is the first release sheet. If it exists on the covering region which the piece 11 covers, the base material 3 is bent at the position of the second dividing line 23 while the first release sheet piece 11 is being peeled off. Cannot be maintained in a flat sheet shape, and the exposed adhesive layers 5 stick to each other, or when the base material 3 is attached to clothes, the adhesive layer 5 sticks to a place other than the purpose of the clothes. It is because it became difficult to stick the material 3 on clothes. On the other hand, as in Examples 1, 2, and 5, when the second parting line 23 does not exist on the covering region that the second release sheet piece 12 covers the first release sheet piece 11, While the first release sheet piece 11 is being peeled, in the covering region covered by the first release sheet piece 11, since the base material 3 is covered with the protective sheet 20, the base material 3 is not bent and is described above. There is no problem. From this result, it was confirmed that it is more preferable not to provide it on the covering region covered with the first release sheet 11 that peels the second dividing line 23 first.

  As described above, according to the present embodiment, slits are formed in the release sheet 10 and the protective sheet 20, and the first piece line 13 and the second piece line 23 are provided so that the sheet pieces 11, 12, 21, and 22 are attached. By forming the sheet 10, the sheets 10 and 20 are not wound at one time from one end to the other end of the substrate 3. Thereby, when peeling off each sheet | seat 10 and 20, the risk that a wrinkle will arise in the base material 3 or the adhesion layers 5 of the base material 3 will adhere can be reduced. Further, by shifting the position of the first dividing line 13 of the release sheet 10 and the second dividing line 23 of the protective sheet 20, the base material 3 is separated by the protective sheet 20 at the position of the first dividing line 13. Since it is coat | covered with the peeling sheet 10 in the position of a line | wire, the base material 3 does not tear easily. Therefore, the base material 3 can be formed very thin. And when each separation line 13 and 23 has shifted | deviated 1 cm or more apart, when peeling each peeling sheet piece 11 and 12 from the base material 3, the protection sheet 20 is 2nd by the curvature of the base material 3. It is possible to prevent the release sheet pieces 11 and 12 from being easily and cleanly peeled off from the base material 3. In the manufacturing process of the thin film sheet 1, the release sheet 10 and the protective sheet 20 are laminated on the base material 3, and then slits are formed on the release sheet 10 and the protective sheet 20 with a cutter or the like. Since the positions of 13 and 23 are shifted by 1 cm or more, the load due to the slit formation is not concentrated on one place of the base material 3, so that the base material 3 is cut at the positions of the dividing lines 13 and 23. It can be prevented from becoming easy or weak. Further, the first release sheet piece 11 is removed from the substrate 3 by not providing the second dividing line 23 on the covering region of the first release sheet piece 11 on the body side region 1a side to be peeled first. It can be peeled off easily and cleanly, and the substrate 3 can be easily and cleanly attached to the clothes.

DESCRIPTION OF SYMBOLS 1 Thin film sheet 3 Base material 5 Adhesive layer 10 Release sheet 11 1st release sheet piece 12 2nd release sheet piece 13 1st division line 20 Protection sheet 21 1st protection sheet piece 22 2nd protection sheet piece 23 1st 2 division lines

Claims (6)

A base material composed of a thin film, an adhesive layer provided on one surface of the base material for attaching the base material to an adherend, a peelable release sheet covering the adhesive layer, and an adhesive A thin film sheet provided with a peelable protective sheet covering the other surface of the base material,
The substrate is liquid-impermeable,
The release sheet is composed of a plurality of release sheet pieces that divide and cover one surface of the base material, and a first region that separates a covering region of the one surface of the base material between the release sheet pieces. Each dividing line is provided,
The protective sheet is composed of a plurality of protective sheet pieces that divide and cover the other surface of the base material, and a second region that divides a covering region of the other surface of the base material between the protective sheet pieces. Each dividing line is provided,
The first dividing line is provided at a position shifted from the second dividing line with the base material interposed therebetween, and the base material is affixed to the inside of the side part of the clothing so that the sweat adheres to the clothing. A thin film sheet used as a sweat spot prevention sheet to prevent water. The release sheet and the protective sheet are each composed of one sheet, and by forming at least one slit in the sheet, the release sheet piece and the protective sheet piece are formed,
The thin film sheet according to claim 1, wherein the first dividing line and the second dividing line are provided at a boundary between each release sheet piece and each protection sheet piece.   The said 2nd division line is not provided on the coating | coated area | region of the said base material which the release sheet piece peeled off first among the some release sheet pieces of the said release sheet is provided. Thin film sheet.   The thin film sheet according to claim 1, wherein the first dividing line and the second dividing line are formed in a straight line and are parallel to each other. The release sheet comprises a first release sheet piece and a second release sheet piece, and the protective sheet comprises a first protective sheet piece and a second protective sheet piece,
The first dividing line provided between the first release sheet piece and the second release sheet piece, and the above provided between the first protection sheet piece and the second protection sheet piece. The thin film sheet according to any one of claims 1 to 4, wherein the distance from the second dividing line is at least 1 cm or more.   The thin film sheet according to claim 1, wherein the adhesive strength of the adhesive layer is greater than the adhesive strength of the adhesive.

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