JPWO2016002317A1 - Adhesive sheet and method for producing adhesive sheet - Google Patents

Abstract

A pressure-sensitive adhesive sheet obtained by laminating at least a base material, a pressure-sensitive adhesive layer, and a release sheet, regardless of the form of the pressure-sensitive adhesive laminate including the base material and the pressure-sensitive adhesive layer. A pressure-sensitive adhesive sheet that can clearly identify body characteristics and a method for producing the same are provided. A pressure-sensitive adhesive sheet or the like formed by laminating at least a base material, a pressure-sensitive adhesive layer, and a release sheet, wherein the pressure-sensitive adhesive laminate including the base material and the pressure-sensitive adhesive layer is coated on the release sheet. It is molded into an adherend pasting part to be attached to the adherend and an identification part for identifying the characteristics of the adhesive laminate, and the adherend pasting part and the identification part The portions are arranged in a plane on the same release sheet.

Description

The present invention relates to a pressure-sensitive adhesive sheet and a method for producing a pressure-sensitive adhesive sheet.
In particular, an adhesive sheet (adhesive sheet with a release sheet) formed by laminating at least a base material, an adhesive layer, and a release sheet, the adhesive laminate including the base material and the adhesive layer It is related with the adhesive sheet which can identify the characteristic of an adhesive laminated body clearly irrespective of the form, and its manufacturing method.

  Conventionally, a display label for displaying predetermined contents, a fixing tape for fixing a component inside an electrical product, or a protective film for protecting the component from dust and scratches in the assembly process of the electrical product For example, a pressure-sensitive adhesive laminate obtained by laminating a base material and a pressure-sensitive adhesive layer suitable for each application is used.

  There are various forms of such an adhesive laminate according to its application, and there are various types such as a minimum one and one having a cut portion (for example, Patent Document 1).

  That is, Patent Document 1 has a platen roller in a printer housing and a printing unit that prints on a label continuum transferred on a transfer path formed in the printer housing, and further detects the position of the label continuum. And a control unit that controls the detection unit and the printing unit, and the distance between the label discharge port of the printer housing and the platen roller is a limitation on the minimum size as a printable label size. The minimum label print area in the direction, the label continuum is a minimal label continuum having a strip-shaped mount and a plurality of minimum labels temporarily attached to the mount and having a pitch of the minimum label print area, A method for printing a continuous miniature label for printing on a miniature label is disclosed. More specifically, with respect to a minimal label that can be arranged in a predetermined number within a unit of the minimum label printing area, a slit is cut in the width direction in accordance with the size of each of the minimal labels in the minimum label area within this unit. In addition to defining the label placement area in which each minimum label is formed, the contents to be printed on the predetermined number of minimum labels are supplied to the label placement area of each minimum label and printed on each minimum label. A method for printing a continuous miniature label, characterized in that, for a minimum number of labels that are smaller than the number of label placement areas in one unit of a label printing area, the minimum label printing area sequentially prints from the smallest label at the head. Is disclosed.

Japanese Patent No. 4769109 (Claims)

However, the minimal label obtained by the printing method of the minimal label continuous body described in Patent Document 1 has the same or similar appearance as the minimal label, but there are plural types of labels having different properties such as adhesive strength depending on applications. In some cases, it may be difficult to clearly identify these.
For this reason, in the work site where various labels are stuck on various adherends, there has been a problem that it is easy for an operator to confuse labels having different characteristics.
In addition, the minimal label described in Patent Document 1 is easily and accurately characterized because the label is minimal even if it is actually confused to measure and identify characteristics such as adhesive strength. It was difficult to measure and, after all, there was a problem that ex-post identification became difficult.

  Therefore, there has been a demand for a technique that can clearly identify the characteristics of the adhesive laminate regardless of the form of the adhesive laminate.

In view of the circumstances as described above, the present inventors made extensive efforts to attach the adhesive laminate including the base material and the adhesive layer to the adherend on the release sheet. The adherend pasting part for forming and the identifying part for identifying the characteristics of the adhesive laminate are molded, and the adherend pasting part and the identifying part are peeled off at the same time. The present invention has been completed by finding that the above-described problems can be solved by arranging in a plane on a sheet.
That is, the object of the present invention is to clearly identify the characteristics of the pressure-sensitive adhesive laminate regardless of the form of the pressure-sensitive adhesive laminate (adhering part attaching portion) including the base material and the pressure-sensitive adhesive layer. It is in providing the adhesive sheet which can be manufactured, and its manufacturing method.

According to the present invention, the pressure-sensitive adhesive sheet is formed by laminating at least a base material, a pressure-sensitive adhesive layer, and a release sheet, and the pressure-sensitive adhesive laminate including the base material and the pressure-sensitive adhesive layer is peeled off. On the sheet, the adherend pasting part for sticking to the adherend and the identifying part for identifying the characteristics of the adhesive laminate are molded and used for sticking the adherend. A pressure-sensitive adhesive sheet is provided in which a portion and an identification portion are arranged in a plane on the same release sheet, and the above-described problems can be solved.
That is, in the pressure-sensitive adhesive sheet of the present invention, since the pressure-sensitive adhesive laminate is molded into an adherend-adhering part and an identification part, the planar shape of the adherend-adhering part is A plurality of types of pressure-sensitive adhesive sheets that are the same or similar but are difficult to identify from the planar shape of the adherend-adhering portion can be clearly identified, as in the case where characteristics such as adhesive strength are different.
In addition, although identification is also possible by coloring, printing, etc., in that case, a separate step for performing coloring, printing, etc. is required, which causes a cost problem.
In particular, in the technical field of pressure-sensitive adhesive sheets having a short lead time, a time problem is caused by performing these steps.
In this regard, the pressure-sensitive adhesive sheet of the present invention can solve such a problem because the identification portion can be formed at the same time as the adherend pasting portion is formed.

Further, in configuring the pressure-sensitive adhesive sheet of the present invention, the planar shape of the identification portion is rectangular, substantially rectangular, elliptical, substantially elliptical, circular, substantially circular, triangular, substantially triangular, pentagonal, substantially pentagonal, star-shaped, It is preferable to use at least one selected from the group consisting of alphabets and numbers.
By comprising in this way, it can identify more clearly using the part for identification.

Another aspect of the present invention is a method for manufacturing the pressure-sensitive adhesive sheet described above, which includes the following steps (I) to (II).
(I) Step of preparing a pressure-sensitive adhesive sheet prior to molding formed by laminating at least a base material, a pressure-sensitive adhesive layer, and a release sheet (II) A pressure-sensitive adhesive laminate including a base material and a pressure-sensitive adhesive layer The body is molded into an adherend pasting portion for sticking to the adherend on the release sheet and an identification portion for identifying the characteristics of the adhesive laminate, and the adherend pasting Step for obtaining a pressure-sensitive adhesive sheet in which the part for identification and the part for identification are arranged in a plane on the same release sheet. That is, if the method for producing the pressure-sensitive adhesive sheet of the present invention, the substrate and the pressure-sensitive adhesive layer are included. The adhesive laminate to be formed on the release sheet is molded into an adherend pasting part for being attached to the adherend, and an identification part for identifying the characteristics of the adhesive laminate, And, the adherend pasting part and the identification part are on the same release sheet. Due to the planar arrangement, it is possible to obtain a pressure-sensitive adhesive sheet that can more clearly identify a plurality of types of pressure-sensitive adhesive sheets that are difficult to identify from the planar shape of the adherend pasting portion.

Further, in carrying out the method for producing the pressure-sensitive adhesive sheet of the present invention, in the step (II), the first processing means corresponding to the planar shape of the adherend pasting part and the planar shape of the identification part are formed as the molding process. It is preferable to perform punching using a punching machine having a second processing means corresponding to the above.
By carrying out in this way, the identification portion can be molded simultaneously with the adherend pasting portion.

Drawing 1 (a)-(b) is a figure offered in order to explain an adhesive sheet of the present invention. Fig.2 (a)-(c) is another figure provided in order to demonstrate the adhesive sheet of this invention. Fig.3 (a)-(b) is another figure with which it uses in order to demonstrate the adhesive sheet of this invention. 4 (a) to 4 (e) are diagrams for explaining the method for producing the pressure-sensitive adhesive sheet of the present invention.

[First Embodiment]
As shown in FIGS. 1A to 1B, the first embodiment of the present invention is a pressure-sensitive adhesive sheet 20 formed by laminating at least a base material 6, a pressure-sensitive adhesive layer 4, and a release sheet 2. The adhesive laminate 10 including the base material 6 and the adhesive layer 4 is attached to the adherend on the adherend on the release sheet 2; An identification portion 14 for identifying the characteristics of the adhesive laminate 10 is molded into the adherend-adhering portion 12 and the identification portion 14 on the same release sheet 2. The pressure-sensitive adhesive sheet 20 is arranged in a plane.
In addition, Fig.1 (a) is a top view of the adhesive sheet of this invention, FIG.1 (b) shows the case where an adhesive sheet is cut | disconnected in the plane which passes along line AA in Fig.1 (a). It is sectional drawing.
Further, FIG. 1B shows a state where portions other than the adherend pasting portion 12 and the physical property measuring portion 14 in the adhesive laminate 10 are peeled and removed (in FIG. 2B described later). The same).
Hereinafter, a first embodiment of the present invention will be specifically described with reference to the drawings as appropriate.

1. Release sheet The release sheet in the present invention is not particularly limited. For example, a polyester film such as polyethylene terephthalate, polybutylene terephthalate, and polyethylene naphthalate, a polyolefin film such as polypropylene and polyethylene, or a paper-based release material. On the other hand, for example, a silicone or rubber release agent may be applied to provide a release layer.
Moreover, it is preferable that the film thickness of this peeling sheet is normally set to a value within the range of 20 to 150 μm, and more preferably set to a value within the range of 25 to 75 μm.

2. Adhesive Laminate In the present invention, the adhesive laminate is a laminate comprising a base material and an adhesive layer, and means a part other than the release sheet in the adhesive sheet.
Hereinafter, the base material and the pressure-sensitive adhesive layer, which are constituent elements of the pressure-sensitive adhesive laminate, will be described.

(1) Base material The base material in the present invention is not particularly limited, and is appropriately selected from among plastic films, paper base materials, nonwoven fabrics, and the like that have been conventionally used as a base material for pressure-sensitive adhesive sheets. Can do.
For example, for plastic films, polyester films such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polyethylene film, polypropylene film, polyvinyl chloride film, polyvinylidene chloride film, polyvinyl alcohol film, ethylene-vinyl acetate copolymer Film, polystyrene film, polycarbonate film, polymethylpentene film, polysulfone film, polyetheretherketone film, polyethersulfone film, polyphenylenesulfone film, polyetherimide film, polyimide film, fluororesin film, polyamide film, acrylic resin film, Norbornene resin film, cycloolefin resin film It can be mentioned Lum and the like.
Moreover, as a film thickness of a base material, it is preferable to usually set it as the value within the range of 10-300 micrometers, and it is more preferable to set it as the value within the range of 20-150 micrometers.

(2) Pressure-sensitive adhesive layer The pressure-sensitive adhesive layer in the present invention is not particularly limited, and conventionally known pressure-sensitive adhesives such as acrylic, silicone, urethane, and rubber can be used.
Moreover, an active energy ray-curable adhesive or a hot-melt adhesive can be used as the adhesive type.
In addition, the thickness of the pressure-sensitive adhesive layer is usually preferably a value within the range of 1 to 200 μm, and more preferably within the range of 5 to 50 μm.

(3) Other layers Moreover, in addition to a base material and an adhesive layer, you may laminate | stack other layers, such as an intermediate | middle layer and an easily bonding layer, to an adhesive laminated body.

(4) Part for adherend adherend The adhesive laminated body in this invention has the part for adherend adherent for affixing on an adherend, It is characterized by the above-mentioned.
The mode of the adherend pasting part is not particularly limited, but in the following, when a plurality of pressure-sensitive adhesive sheets having different pressure-sensitive adhesive laminates are actually confused, Even when trying to identify by measuring characteristics such as, etc., an aspect that makes it particularly difficult to measure characteristics using the adherend-adhering part, that is, the identification part described later is particularly necessary to identify the adhesive sheet An example of the following will be described as an example.

(4) -1 Area First, as shown in FIG. 1 (a), the shape of the adherend pasting portion 12 is a first aspect in which the characteristic measurement using the adherend pasting portion is particularly difficult. The aspect in which the area in is a value of 400 mm ² or less is mentioned.
The reason for this is that when the area in the planar shape of the adherend-adhering portion is a value of 400 mm ² or less, the area becomes insufficient, even if the adherend-adhering portion is directly used as a sample, or This is because it is difficult to measure characteristics using the adherend pasting portion even when the sample is prepared by processing.
In addition, the planar shape of the adherend-adhering portion is circular in FIG. 1 (a), but is not particularly limited. For example, an oval shape or a rectangular shape can be used depending on the application. Such a shape may be used.
In addition, the “planar shape” in the present invention means a shape when the pressure-sensitive adhesive sheet is viewed from above on the substrate side, as shown in FIG.

(4) -2 Non-contact part In addition, as shown in FIGS. 2 (a) to 2 (c), the adherend is a second aspect in which the characteristic measurement using the adherend pasting part is particularly difficult. The aspect which has the non-contact part 50 in which the adhesive layer 4 of the part 12 for sticking does not contact the adherend 100 partially is mentioned.
This is because, when the adherend pasting part has a non-contact part, the characteristic measurement using the adherend pasting part becomes difficult because the characteristics of the non-contact part affect the measurement result. Because.
It should be noted that the adherend pasting portion having such a non-contact portion does not contact the adhesive layer directly with the lens portion when, for example, a precision part such as a lens unit of a digital camera is assembled. It is used when a protective film is attached to the surface.
Accordingly, the planar shape, three-dimensional shape, arrangement, number, and the like of the non-contact portion are not particularly limited, but as a rough example, there are modes as shown in FIGS. 2 (a) to 2 (c). .
The non-contact portion can be formed, for example, by stamping the adherend pasting portion and simultaneously pressing the concave portion of the upper mold and the convex portion of the lower mold.
In addition, Fig.2 (a) is a top view of the adhesive sheet of this invention, FIG.2 (b) is a case where an adhesive sheet is cut | disconnected in the plane which passes along line BB in FIG.2 (a). It is sectional drawing and FIG.2 (c) is a figure which shows a mode that the part for adherend sticking in the adhesive sheet shown in FIG.2 (b) was stuck with respect to the adherend.

(5) Identification part The adhesive laminated body in this invention has the part for identification for identifying the characteristic of an adhesive laminated body, It is characterized by the above-mentioned.
The reason for this is that the planar shape of the adherend-adhering part is the same or similar, but it is difficult to distinguish from the planar shape of the adherend-adhering part, such as when the properties such as adhesive strength are different. This is because the adhesive sheet can be clearly identified.
Hereinafter, the identification part will be specifically described.

(5) -1 Identification target characteristics The characteristics to be identified by the identification portion are not particularly limited. For example, the gel fraction in the adhesive layer, the storage elastic modulus, the base material, or the adhesiveness. Examples thereof include adhesive strength, holding power, total light transmittance, haze value, and the like in the entire laminate.

(5) -2 Shape The planar shape of the identification portion is a rectangle, a substantially rectangular shape as shown in FIGS. 1A and 2A, an elliptical shape, a substantially elliptical shape, a circular shape, a substantially circular shape, a triangular shape, or a substantially triangular shape. And at least one selected from the group consisting of pentagon, substantially pentagon, star, alphabet and number.
This is because the identification portion can be more clearly identified by setting the planar shape of the identification portion to these shapes.
Moreover, even if it is difficult to measure characteristics such as adhesive strength in the adhesive laminate by the adherend pasting part by making the planar shape of the identifying part these shapes, the identifying part Can be used to easily and accurately measure characteristics.

Moreover, it is also preferable that the planar shape of the identification portion is character information such as a number shown in FIG. 3A or an alphabet shown in FIG.
This is because such character information can more clearly identify the characteristics of the adhesive laminate.
In addition, Fig.3 (a)-(b) is a top view of the adhesive sheet of this invention.

(5) -3 Size In addition, it is preferable to set the maximum diameter in the planar shape of the identification portion to a value within the range of 20 to 300 mm.
This is because when the maximum diameter is less than 20 mm, it becomes difficult to visually recognize the planar shape of the identification portion, and the discrimination may be deteriorated. On the other hand, when the maximum value exceeds 300 mm, the area of the adherend-adhering portion that can be planarly arranged on the same release sheet may be excessively limited.
The maximum diameter in the present invention means the diameter of the circumscribed circle when a circumscribed circle is drawn on the planar shape of the identification portion.

In addition, in the case where the planar shape of the identification portion is a rectangle, a substantially rectangular shape, an elliptical shape or a substantially elliptical shape, in consideration of the viewpoint of easily and accurately measuring the characteristics of the adhesive laminate, The length is preferably set to a value within the range of 20 to 300 mm, more preferably set to a value within the range of 30 to 250 mm, and further preferably set to a value within the range of 45 to 200 mm.
Further, the length (width) in the minor axis direction is preferably set to a value within the range of 1 to 30 mm, more preferably set to a value within the range of 1.5 to 28 mm, and within the range of 2 to 25 mm. More preferably, the value of

(5) -4 Arrangement In the present invention, as shown in FIG. 1 (a), FIG. 2 (a), and FIGS. The portion 14 is planarly arranged on the same release sheet 2.
The reason for this is that, by configuring in this way, the identification part arranged in a plane on the same release sheet represents the characteristics of the adherend-adhering part. This is because confusion can be reliably prevented.

In addition, the planar arrangement of the adherend pasting portion is basically the same as in the case of a conventional pressure-sensitive adhesive sheet having no identification portion, as shown in FIGS. 1 (a), 2 (a), 3 ( As shown to a)-(b), it is preferable to arrange | position planarly so that a shaping | molding area may become the maximum in the range which does not reduce the handleability at the time of use.
On the other hand, as shown in FIGS. 1 (a) and 2 (a), the aspect of the planar arrangement of the identification portion is, for example, a position along any side of the adhesive sheet, or FIGS. As shown in (b), it is preferable that the positions near the corners surrounded by the two sides are arranged in a plane outside the portion where the adherend pasting portion is arranged in a plane.
The reason for this is that, by arranging in this way, it is possible to suppress obstructing the planar arrangement of the adherend-adhering portion, and to reduce handling when using the adherend-adhering portion. This is because this can also be suppressed.
However, the flat surface of the adherend affixing part may pass through the part where the adherend affixing part is flatly arranged as long as the flat disposition of the adherend affixing part is not hindered and the handling property is not impaired. You may arrange.

[Second Embodiment]
2nd Embodiment of this invention is a manufacturing method of the adhesive sheet as 1st Embodiment, Comprising: The manufacturing method of the adhesive sheet characterized by including following process (I)-(II).
(I) Step of preparing a pressure-sensitive adhesive sheet prior to molding formed by laminating at least a base material, a pressure-sensitive adhesive layer, and a release sheet (II) A pressure-sensitive adhesive laminate including a base material and a pressure-sensitive adhesive layer The body is molded into an adherend pasting portion for sticking to the adherend on the release sheet and an identification portion for identifying the physical properties of the adhesive laminate, and the adherend pasting Step for obtaining a pressure-sensitive adhesive sheet in which the part for identification and the part for identification are arranged in a plane on the same release sheet Hereinafter, the second embodiment of the present invention will be centered on differences from the first embodiment. A specific description will be given with reference to the drawings.

1. Step (I): Step for Preparing Adhesive Sheet Step (I) is a step for preparing a pressure-sensitive adhesive sheet before molding, which is formed by laminating at least a base material, a pressure-sensitive adhesive layer, and a release sheet.
Such a step can be performed by a conventionally known method.
More specifically, the case of using an acrylic inactive energy ray-curable pressure-sensitive adhesive composition will be described as an example. The pressure-sensitive adhesive composition is applied to a release sheet and dried to form a pressure-sensitive adhesive layer. After forming, it is preferable to laminate | stack a base material with respect to the obtained adhesive layer.
In addition, the adhesive sheet before a shaping | molding process is manufactured as a strip | belt-shaped continuous body, and if necessary, it can be cut | judged into a sheet | seat for every predetermined interval after a subsequent shaping | molding process process.

2. Step (II): Molding Step As shown in FIGS. 4 (a) to 4 (e), the step (II) includes the adhesive laminate 10 including the base material 6 and the pressure-sensitive adhesive layer 4. On the release sheet 2, the adherend pasting portion 12 and the identification portion (not shown) are molded into the adherend pasting portion 12 and the identification portion (not shown). Is a step of obtaining a pressure-sensitive adhesive sheet 20 that is arranged in a plane on the same release sheet 2.
Such a forming process can be performed by a conventionally known method. For example, the forming process can be performed by a punching process as shown in FIGS. 4A to 4B, a laser process, or the like.
4A to 4B are side sectional views showing the punching process.

Moreover, as a forming process, as shown in FIGS. 4A to 4B, a first processing means 214 corresponding to the planar shape of the adherend pasting portion 12 and an identification portion (not shown) are provided. It is preferable to perform punching using a punching machine 200 having a second processing means (not shown) corresponding to the planar shape.
This is because the identification part can be molded simultaneously with the adherend pasting part if it is a punching process using such a punching machine.
In the punching process shown in FIGS. 4 (a) to 4 (b), the adhesive layer 4 of the adherend pasting portion 12 as shown in FIGS. 2 (a) to 2 (c) is partially adhered. The pressure-sensitive adhesive sheet 20 having a non-contact portion 50 that does not come into contact with 100 is manufactured.
Hereinafter, the punching shown in FIGS. 4A to 4B will be described in detail.

  That is, as shown in FIG. 4A, the pressure-sensitive adhesive sheet 20 ′ before molding is formed at a constant transfer pitch with the upper mold 210 and the lower mold 220 of the punching machine 200 being separated from each other. After being transferred in the transfer direction E, as shown in FIG. 4B, the upper mold 210 and the lower mold 220 are pressed and punched during the transfer stop period.

More specifically, as shown in FIGS. 4C to 4E, the upper mold 210 is used for the adhesive laminate 10 that is a laminate including the base material 6 and the adhesive layer 4. The first processing means 214 in FIG. 5 forms a cut corresponding to the planar shape of the adherend pasting portion 12, and at the same time, the second processing means (not shown) in the upper mold 210 forms the identification portion 14. A cut corresponding to the planar shape is formed.
4 (c) is a plan view of the pressure-sensitive adhesive sheet obtained by the punching process shown in FIGS. 4 (a) to 4 (b), and FIG. 4 (d) is a line segment X in FIG. 4 (c). FIG. 4E is a cross-sectional view when the pressure-sensitive adhesive sheet is cut along a plane passing through -X, and FIG. 4E is a cross-section when the pressure-sensitive adhesive sheet is cut along a plane passing through line YY in FIG. FIG.

At the same time, the concave portion 212 of the upper mold frame 210 and the convex portion 222 of the lower mold frame 220 form a part corresponding to the adherend pasting portion 12 of the pressure-sensitive adhesive sheet 20 ′ before molding. On the other hand, a dome shape is formed, whereby a non-contact portion 50 is formed in the adherend pasting portion 12.
Thereafter, when the upper mold 210 and the lower mold 220 are separated from each other, the continuum of the pressure-sensitive adhesive sheet 20 and the pressure-sensitive adhesive sheet 20 ′ before processing is transferred in the transfer direction E by a fixed transfer pitch, and the above steps are repeated. It is.
And the final adhesive sheet 20 shown to FIG.4 (c)-(e) can be obtained by cutting the continuous body of the adhesive sheet 20 obtained by repetition of the above process into a sheet | seat.
In addition, in the final adhesive sheet 20 shown to FIG.4 (c)-(e), parts other than the adherend sticking part 12 and the identification part 14 in the adhesive laminated body 10 are peeled and removed.
By doing in this way, at the time of use of an adhesive sheet, it is because it can make it easy to peel the adherend sticking part and the identification part.
Such a peeling and removing process may be performed at any point from the punching process to the cutting or winding process, and may be omitted in some cases.

Moreover, although the punching process shown in FIGS. 4A to 4B has been specifically described as an example, the punching process for forming the adherend pasting part and the identification part is formed, and a non-contact part is formed. The order of the uneven processing for cutting and the cutting processing for cutting into sheets is not particularly limited.
Therefore, for example, after cutting the pressure-sensitive adhesive sheet before forming into sheets, a non-contact portion may be formed by uneven processing, and finally punching may be performed.
Alternatively, the non-contact portion may be formed by punching the pressure-sensitive adhesive sheet before forming and then cutting it into sheets, and finally by uneven processing.
Alternatively, after punching the pressure-sensitive adhesive sheet before forming, the non-contact portion may be formed by uneven processing and simultaneously cut into sheets.

As described above in detail, according to the pressure-sensitive adhesive sheet of the present invention, the pressure-sensitive adhesive laminate including the base material and the pressure-sensitive adhesive layer is coated on the adherend on the release sheet. Formed into a part for attaching the adherend and an identification part for identifying the characteristics of the adhesive laminate, and the part for attaching the adherend and the part for identification are flat on the same release sheet By arranging, the characteristics of the pressure-sensitive adhesive laminate can be clearly identified regardless of the form of the pressure-sensitive adhesive laminate (adhering part attaching portion).
Therefore, the pressure-sensitive adhesive sheet or the like of the present invention prevents the operator from confusing labels and protective films with different characteristics at the work site where various labels and protective films are attached to the adherend. It is expected to contribute significantly to the improvement of manufacturing efficiency.

2: Peeling sheet, 4: Adhesive layer, 6: Base material, 10: Adhesive laminate, 12: Part for attaching adherend, 14: Part for identification, 20: Adhesive sheet, 20 ': Before molding Adhesive sheet, 50: non-contact part, 100: adherend, 200: punching machine, 210: upper mold, 212: recess, 214: first processing means, 220: lower mold, 222: convex

Claims (4)

A pressure-sensitive adhesive sheet formed by laminating at least a base material, a pressure-sensitive adhesive layer, and a release sheet,
The adhesive laminate comprising the base material and the adhesive layer is bonded to the adherend on the release sheet, and the properties of the adhesive laminate are as follows. And is formed into an identification part for identifying
The pressure-sensitive adhesive sheet, wherein the adherend pasting part and the identification part are arranged in a plane on the same release sheet.   The planar shape of the identification portion is at least selected from the group consisting of a rectangle, a substantially rectangular shape, an elliptical shape, a substantially elliptical shape, a circular shape, a substantially circular shape, a triangular shape, a substantially triangular shape, a pentagonal shape, a substantially pentagonal shape, a star shape, an alphabetic character, and a number. The pressure-sensitive adhesive sheet according to claim 1, wherein the pressure-sensitive adhesive sheet is one type. It is a manufacturing method of the adhesive sheet according to claim 1 or 2,
The manufacturing method of the adhesive sheet characterized by including following process (I)-(II).
(I) A step of preparing a pressure-sensitive adhesive sheet before molding formed by laminating at least a base material, a pressure-sensitive adhesive layer, and a release sheet (II) A pressure-sensitive adhesive comprising the base material and the pressure-sensitive adhesive layer The adhesive laminate is molded into an adherend pasting portion for being attached to an adherend on the release sheet, and an identification portion for identifying the characteristics of the adhesive laminate, The process of obtaining the adhesive sheet by which the said adherend sticking part and the said identification part are planarly arrange | positioned on the same said peeling sheet   In the step (II), as the forming process, a first processing means corresponding to the planar shape of the adherend pasting part, and a second processing means corresponding to the planar shape of the identification part, 4. The method for producing a pressure-sensitive adhesive sheet according to claim 3, wherein punching is performed using a punching machine having the punching machine.

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