JP6308597B2 - Intermediate for tape, method for producing printing tape using the intermediate, and printing tape obtained by the production method - Google Patents

Description

  The present invention relates to an intermediate for tape, a method for producing a printing tape using the intermediate, and a printing tape obtained by the production method.

  As a printing tape, a tape having a printed substrate and an adhesive layer is known (for example, Patent Document 1 and Patent Document 2). In order to protect the printed part, for example, after printing on one surface of the substrate, the printing tape is used to print the substrate using the printed substrate and the laminate of the adhesive layer and the separator. Is manufactured by bonding the surface to which the adhesive is applied and the pressure-sensitive adhesive layer (for example, Patent Document 2). Therefore, for the production of a printing tape, it is necessary to prepare two intermediates, that is, a laminate of a substrate to be printed, an adhesive layer, and a separator. Moreover, in the manufacturing process, the process of bonding these intermediate bodies is further required after the printing process, and the manufacturing process can be complicated.

JP-A-8-58211 JP 2007-331374 A

  An object of the present invention is to provide a tape intermediate suitably used for a novel printing tape manufacturing method, a novel printing tape manufacturing method using the tape intermediate, and a printing tape obtained by the manufacturing method. There is to do.

The tape intermediate of the present invention includes a base material and an adhesive layer. The intermediate for tape has (a) an adhesive force obtained by bonding the pressure-sensitive adhesive layer to a surface of the substrate that is not in contact with the adhesive layer, and (b) an adhesive force between the substrate and the pressure-sensitive adhesive layer. Have a relationship of (a)> (b). This intermediate for tape is an intermediate used in a method for producing a printing tape in which a printed portion is formed between a substrate and an adhesive layer, and this production method is on the side opposite to the adhesive layer of the substrate. Forming a printing portion on the surface of the substrate.
In preferable embodiment, ratio ((a) / (b)) of the said adhesive force (a) and adhesive force (b) is 1.5-20.
In a preferred embodiment, the surface of the substrate that is not in contact with the pressure-sensitive adhesive layer is subjected to surface modification treatment.
In a preferred embodiment, the surface of the substrate that is in contact with the pressure-sensitive adhesive layer is subjected to a release treatment.
In preferable embodiment, ratio of the adhesive force with respect to the stainless steel plate of the said adhesive layer and the adhesive force with respect to a biaxially-stretched polypropylene film is 1.5 or more.
In a preferred embodiment, the intermediate for tape of the present invention further includes a separator.
In preferable embodiment, the said adhesive force (a) is 1.6 N / 50mm or more.
In a preferred embodiment, the adhesive force (b) is 0.05 N / 50 mm to 7 N / 50 mm.
In a preferred embodiment, the substrate is a transparent or translucent resin film.

  ADVANTAGE OF THE INVENTION According to this invention, the intermediate body for tapes used suitably for the novel printing tape manufacturing method, and the novel printing tape manufacturing method using this intermediate body for tapes can be provided. The tape intermediate of the present invention is only the tape intermediate of the present invention, that is, a printing tape in which a printing portion is formed between the base material and the pressure-sensitive adhesive layer without using another tape intermediate. Can be provided. Therefore, a printing tape can be more easily manufactured by using the tape intermediate of the present invention. Furthermore, the printing tape obtained by the method for producing a printing tape of the present invention does not require a separator. For this reason, it is possible to prevent the generation of waste such as a separator peeled off during use.

It is a schematic sectional drawing which shows one embodiment of the intermediate body for tapes of this invention. It is a schematic sectional drawing explaining the manufacturing process of the printing tape of this invention. It is a schematic sectional drawing explaining transfer of the adhesive layer in the manufacturing method of the printing tape of this invention.

<A. Intermediate for tape>
The tape intermediate of the present invention includes a base material and an adhesive layer. FIG. 1 is a schematic sectional view showing one embodiment of the tape intermediate of the present invention. The tape intermediate 100 includes a base material 10, an adhesive layer 20, and a separator 30 in this order. By providing the separator 30, the pressure-sensitive adhesive layer 20 can be appropriately protected until use.

  The intermediate for tape of the present invention comprises (a) an adhesive force (hereinafter also referred to as an adhesive force (a)) obtained by adhering an adhesive layer to a surface of the substrate that is not in contact with the adhesive layer; The adhesive strength between the material and the pressure-sensitive adhesive layer (hereinafter also referred to as adhesive strength (b)) has a relationship of (a)> (b). Such an intermediate for tape can be suitably used in the method for producing a printing tape of the present invention described later. The adhesive force (a) is an adhesive force obtained by adhering the pressure-sensitive adhesive layer to the surface not in contact with the pressure-sensitive adhesive layer of the base material, and other surface is not in contact with the pressure-sensitive adhesive layer of the base material of the tape intermediate. It is the adhesive force measured using the laminated body produced by bonding the adhesive layer of the intermediate body for tapes. The adhesive force (b) is an adhesive force between the base material of the tape intermediate and the pressure-sensitive adhesive layer. In the present specification, the adhesive strength was measured by setting a test piece having a width of 50 mm and a length of 125 mm in a tensile tester, and performing a 180 ° peel test at a peel rate of 300 mm under conditions of a temperature of 23 ° C. and a humidity of 50% RH. Value (N / 50mm).

  The ratio (adhesive force (a) / adhesive force (b)) between the adhesive force (a) and the adhesive force (b) is preferably 1.5 or more, and more preferably 2.0 or more. When the ratio between the adhesive force (a) and the adhesive force (b) is within the above range, the convenience at the time of using the printing tape obtained by the printing tape manufacturing method described later is further improved. The upper limit of the ratio between the adhesive force (a) and the adhesive force (b) is not particularly limited, and is 20, for example.

  The said adhesive force (a) and the adhesive force (b) should just satisfy | fill the relationship of (a)> (b), and can be set to arbitrary appropriate values. For example, in the printing tape using the intermediate for tape of the present invention, the adhesive force (a) is, for example, 1. from the viewpoint that a favorable laminated state of the pressure-sensitive adhesive layer and the base material layer can be more suitably maintained. It can be set to 6 N / 50 mm or more. In addition, the adhesive strength (b) from the point of view of convenience when using the tape intermediate of the present invention and the ability to better maintain the laminated state of the printing tape until it is used. Can be set, for example, to 0.05 N / 50 mm to 7 N / 50 mm.

<A-1. Base material>
Any appropriate resin film is used as the substrate. Examples of the resin include polyolefin resins, polyester resins, polyvinyl chloride resins, and fluorine resins. Specific examples include biaxially stretched polypropylene, unstretched polypropylene, and polyethylene terephthalate. From the viewpoint of cost and film strength, it is preferable to use a biaxially stretched polypropylene film. Moreover, in order to ensure the visibility of a printing part, it is preferable that the said resin film is transparent or translucent.

  The base material is preferably subjected to surface modification treatment on the surface not in contact with the pressure-sensitive adhesive layer. The surface modification treatment is performed by any appropriate means. Examples of the surface modification treatment include corona treatment, plasma treatment, glow discharge treatment, flame treatment, ozone treatment, anchor treatment with any appropriate material selected according to the material forming the adhesive layer, and the like. It is done. The surface modification treatment is preferably a corona treatment. These surface modification treatments may be performed alone or in combination of two or more. Moreover, you may use the commercially available resin film by which the surface modification process was performed previously as a base material.

  The substrate is preferably subjected to a mold release treatment on the surface in contact with the pressure-sensitive adhesive layer. The mold release treatment can be performed by applying any appropriate mold release agent to the surface of the substrate that is in contact with the pressure-sensitive adhesive layer. Examples of the release agent include silicone release agents, fluorine release agents, modified polyolefin release agents, and the like. Any appropriate method can be used as a method for applying the release agent.

  The base material may be subjected to a surface modification treatment only on the surface not in contact with the pressure-sensitive adhesive layer, or may be subjected to a release treatment only on the surface in contact with the pressure-sensitive adhesive layer. A surface modification treatment may be performed on the surface not in contact with the agent layer, and a mold release treatment may be performed on the surface in contact with the adhesive layer of the substrate.

  The thickness of the base material can be set to any appropriate value. The thickness of the substrate is, for example, 25 μm to 60 μm.

<A-2. Adhesive layer>
The pressure-sensitive adhesive layer preferably has a high polarity. The polarity of the pressure-sensitive adhesive layer can be evaluated from, for example, an adhesive force to a stainless steel plate and an adhesive force to a biaxially stretched polypropylene film (hereinafter also referred to as an OPP film). A high-polarity pressure-sensitive adhesive layer usually has a greater adhesion to a stainless steel plate than to an OPP film. Also in this invention, the adhesive layer whose adhesive force with respect to a stainless steel plate is larger than the adhesive force with respect to an OPP film can be used suitably. In this specification, the adhesive strength to the stainless steel plate and the OPP film is obtained by subjecting a laminate having a pressure-sensitive adhesive layer (thickness 15 μm) formed using an arbitrary pressure-sensitive adhesive composition to a stainless steel plate or surface modification treatment. Affixed to a non-PPP film and held for 1 minute, set in a tensile tester, and measured by a 180 ° peel test at a peel rate of 300 mm under conditions of a temperature of 23 ° C. and a humidity of 50% RH (N / 25 mm). Say.

  The ratio of the adhesive strength of the pressure-sensitive adhesive layer to the stainless steel plate and the adhesive strength to the OPP film is preferably 1.5 or more, more preferably 1.9 to 10. When the ratio of the adhesive force to the stainless steel plate and the adhesive force to the OPP plate is within the above range, it can be more suitably used for the tape manufacturing method described later. The adhesive force of the pressure-sensitive adhesive layer to the stainless steel plate and the adhesive force to the OPP film can be set to any appropriate value. The adhesive force of the pressure-sensitive adhesive layer to the stainless steel plate is, for example, 4 N / 25 mm to 10 N / 25 mm. The adhesive force of the pressure-sensitive adhesive layer to the OPP film is, for example, 0.3 N / 25 mm to 2 N / 25 mm.

  When the base material is subjected to surface modification treatment, the adhesive force of the pressure-sensitive adhesive layer to the surface of the base material that has undergone surface modification treatment and the surface of the base material that has not undergone surface modification treatment The ratio of the pressure-sensitive adhesive layer to the adhesive strength (adhesive strength to the surface subjected to surface modification treatment / adhesive strength to the surface not subjected to surface modification treatment) is preferably 1.5 or more. The ratio of the adhesive force of the pressure-sensitive adhesive layer to the surface of the base material subjected to the surface modification treatment and the adhesive force of the pressure-sensitive adhesive layer to the surface of the base material not subjected to the surface modification treatment is as described above. If it is in the range, it can be used more suitably for the intermediate for tape of the present invention. When the ratio of the adhesive force to the surface of the base material subjected to the surface modification treatment and the adhesive force of the surface of the base material not subjected to the surface modification treatment is less than 1.5, the base material is surface modified. There is a possibility that the effect of improving the adhesive strength due to the quality treatment cannot be obtained sufficiently. The adhesive force of the pressure-sensitive adhesive layer to the surface of the substrate that has been subjected to the surface modification treatment is, for example, 5 N / 25 mm to 25 N / 25 mm.

  The pressure-sensitive adhesive layer contains any appropriate pressure-sensitive adhesive. Examples of the pressure-sensitive adhesive include acrylic pressure-sensitive adhesives, rubber-based pressure-sensitive adhesives, and silicon-based pressure-sensitive adhesives. As an adhesive, an acrylic adhesive is preferable.

  The pressure-sensitive adhesive layer preferably further contains a curing agent. By further including a curing agent, the adhesive force of the pressure-sensitive adhesive layer can be adjusted to a desired value. As this hardening | curing agent, an isocyanate type hardening | curing agent etc. are mentioned, for example. The usage-amount of this hardening | curing agent can be set to arbitrary appropriate values according to the objective. Moreover, the said adhesive layer may further contain arbitrary appropriate other additives other than a hardening | curing agent in the range which does not impair the effect of this invention. Examples of the other additive include an antioxidant and an ultraviolet absorber. These other additives may be used alone or in combination of two or more. The usage-amount of another additive can be set to arbitrary appropriate values according to the objective etc.

  The thickness of the pressure-sensitive adhesive layer can be set to any appropriate value. The thickness of the pressure-sensitive adhesive layer is, for example, 10 μm to 30 μm.

<A-3. Separator>
The intermediate for tape of the present invention may further contain a separator. By including the separator, the pressure-sensitive adhesive layer of the intermediate for tape can be appropriately protected until use. Any appropriate separator can be used as the separator. The separator usually includes a base material and a release layer containing a release agent. Any appropriate base material can be used as the base material of the separator. For example, a film, a nonwoven fabric, or paper of any appropriate resin (for example, polyethylene terephthalate (PET), polyolefin, etc.) can be used. Any appropriate release agent can be used as the release agent. Examples of the release agent include silicone release agents, fluorine release agents, modified polyolefin release agents, and the like. Moreover, you may use a commercial item as a separator.

  The thickness of the separator can be set to any appropriate value. The thickness of the separator is, for example, 25 μm to 60 μm.

<A-4. Method for producing intermediate for tape>
The intermediate for tape of the present invention can be produced by any appropriate method. For example, the pressure-sensitive adhesive may be applied to one surface of the base material (in the case of using a base material that has been subjected to surface modification treatment, the surface that has not been subjected to surface modification treatment) using any appropriate means. It can be manufactured by applying a pressure-sensitive adhesive composition containing an adhesive to form a pressure-sensitive adhesive layer. In addition, when using a base material that has been subjected to a release treatment, the adhesive composition containing the above-mentioned pressure-sensitive adhesive is applied to the surface of the base material that has been subjected to the release treatment using any appropriate means. It can be manufactured by forming a pressure-sensitive adhesive layer. Examples of means for applying the pressure-sensitive adhesive composition include a roll coater, a bar coater, a comma coater, a gravure coater, and a curtain coater. The pressure-sensitive adhesive layer may be formed on another base material and then transferred to the base material of the tape intermediate.

<B. Manufacturing method of printing tape>
The method for producing a printing tape of the present invention includes a step of forming a printing portion on the surface opposite to the pressure-sensitive adhesive layer of the base material for the tape intermediate, and a method for forming the base material for the tape intermediate on which the printing portion is formed. A step of laminating the surface on which the printing part is formed and the pressure-sensitive adhesive layer of the intermediate for tape or the pressure-sensitive adhesive layer of another intermediate for tape, and the pressure-sensitive adhesive layer of the intermediate for tape or other tape A step of transferring the pressure-sensitive adhesive layer of the intermediate body onto the surface on which the printed portion of the base material of the intermediate body for tape is formed. Conventionally, a printing tape having a printing part between an adhesive layer and a substrate is formed by forming a printing part on the film surface serving as a substrate, and then forming an adhesive layer on the surface on which the printing part of the substrate layer is formed. And a laminated body of separators. In the method for producing a printing tape of the present invention, by using the above-mentioned intermediate for tape, a printing tape in which a printed portion is formed between the base material and the adhesive layer is produced only by this intermediate for tape. Can do. Therefore, a printing tape can be manufactured more simply.

<B-1. Step of forming a printed part on the substrate surface>
FIG. 2 is a schematic sectional view for explaining the production process of the printing tape of the present invention. In the manufacturing method of the present invention, first, the printing part 40 is formed on the surface of the base material layer 10 included in the tape intermediate 100, and the tape intermediate 101 on which the printing part is formed is obtained (FIG. 2 (a). )). The printing unit 40 can be formed by any appropriate printing method. Examples of the printing method include printing with a thermal transfer printer, planographic printing, offset printing, letterpress printing, and the like. The printing method can be appropriately selected according to the complexity and purpose of the printing unit to be formed. Any appropriate ink can be used as the printing ink used for the printing.

<B-2. Step of bonding the surface of the base material on which the printed portion is formed and the adhesive layer of the intermediate for tape or the adhesive layer of another intermediate for tape>
Next, the separator 30 is peeled off from the tape intermediate 101 provided with the printing unit 40 by any appropriate means. Next, the tape intermediate body 101 from which the separator has been peeled is used to form the surface of the tape intermediate body 101 on which the printing portion 40 of the substrate 10 is formed and the tape intermediate body 101 using any appropriate winding device (not shown). It winds up so that the intermediate | middle adhesive layer 20 may contact, and this base material 10 and this adhesive layer 20 are bonded together (FIG.2 (b)). By this winding process, the surface of the base material 10 on which the printing unit 40 is formed and the pressure-sensitive adhesive layer 20 are bonded together. Therefore, in the obtained printing tape, generation | occurrence | production of a float etc. can be prevented between a base material and an adhesive layer. In the actual printing tape, the printing unit 40 is a part having a thickness smaller than that of the pressure-sensitive adhesive layer 20. Therefore, the printing unit 40 is embedded in the pressure-sensitive adhesive layer 20 in the portion of the intermediate body 101 that is a roll body. In this embodiment, a long tape intermediate is preferably used. In this roll body, the base material 10 is the outermost layer (FIG. 2C). The pressure-sensitive adhesive layer 20 of the printing tape can be protected by the substrate 10 until it is attached to the adherend. In addition, a tape intermediate is not provided with a separator, a tape intermediate manufacturing process, a printing portion forming step on the surface of the base material, and a surface on which the printing portion is formed and an adhesive for the tape intermediate You may perform the bonding process with a layer continuously.

  In another embodiment, two tape intermediates 101 on which the printing section is formed are used. First, the separator 30 is peeled off from one tape intermediate 101 to obtain a laminate 102. The pressure-sensitive adhesive layer 20 ′ of the obtained laminate 102 is bonded to the surface of the substrate 10 of the other tape intermediate 101 on which the printing unit 40 is formed (FIG. 2D). In this bonding step, the laminated body 102 and the tape intermediate 101 are bonded so that they are in close contact with each other. Also in this embodiment, the laminated body 200 ′ after bonding is bonded so that the printing unit 40 provided on the base material 10 of the intermediate body 101 is embedded in the adhesive layer 20 ′ of the stacked body 102. In this embodiment, a tape intermediate in which the printing unit 40 is not formed may be used as another tape intermediate to be bonded to the tape intermediate 101 in which the printing unit is formed.

<B-3. Step of transferring the pressure-sensitive adhesive layer of the intermediate for tape or the pressure-sensitive adhesive layer of the other intermediate for tape to the surface on which the printing portion of the base material of the intermediate for tape is formed>
The transfer process of the pressure-sensitive adhesive layer is performed as follows, for example. FIG. 3 is a schematic cross-sectional view illustrating transfer of the pressure-sensitive adhesive layer in the method for producing a printing tape of the present invention. When the surface on which the printed part of the substrate is formed and the adhesive layer of the tape intermediate are bonded using one tape intermediate, the tape intermediate after bonding is a roll-shaped laminate. (For example, FIG. 2C). In the manufacturing method of the printing tape of this invention, the intermediate body for tapes which has the relationship of the said adhesive force (a)> adhesive force (b) is used. Therefore, in the roll-shaped laminate 200, the adhesive force between the surface of the substrate 10 on which the printing unit 40 is formed and the pressure-sensitive adhesive layer 20 (adhesive force at the α portion in FIG. 3A, the adhesive force (a )) Is greater than the adhesive force between the substrate 10 and the pressure-sensitive adhesive layer 20 (adhesive force at the β portion in FIG. 3A, the above-mentioned adhesive force (b)). Therefore, only the outermost base material 10 can be easily peeled from the roll-shaped laminate 200. By peeling off the outermost base material 10, the surface on which the printing part 40 of the base material 10 ′ in which the pressure-sensitive adhesive layer 20 formed on the base material 10 is positioned inside the roll-shaped laminate 200 is formed. (FIG. 3B). Thereby, the printing tape in which the printing part 40 was formed between base material 10 'and the adhesive layer 20 is obtained. In addition, since the printing part 40 formed in the base material 10 occupies a limited area on the surface of the base material 10, the adhesive force (a) is also applied to the tape intermediate on which the printing part 40 is formed. The relationship of> (b) is substantially maintained. Therefore, the pressure-sensitive adhesive layer can be easily transferred to the surface of the substrate 10 on which the printing unit 40 is formed.

  Further, the adhesive strength between the base material 10 ′ and the pressure-sensitive adhesive layer 20 ′ positioned inside thereof (adhesive strength at the γ portion in FIG. 3B, the above adhesive strength (b)) It is smaller than the adhesive strength with the agent layer 20 (adhesive strength of the α portion in FIG. 3B, corresponding to the adhesive strength (a)). Therefore, only the printing tape of a required length can be easily peeled from the roll-shaped laminate.

  In the embodiment using two tape intermediates (for example, FIG. 2D), the surface of the intermediate body 101 for the tape 10 on which the printing portion 40 of the substrate 10 is formed and the other intermediate for tape with the separator peeled off. The adhesive force (corresponding to the above-mentioned adhesive force (a)) of the body 102 with the adhesive layer 20 ′ is the adhesive force between the base material 10 ′ and the adhesive layer 20 ′ of the tape intermediate 102 (adhesive force (b Larger than)). Therefore, by peeling the base material 10 ′ from the laminate 200 ′, the pressure-sensitive adhesive layer 20 ′ of the other tape intermediate 102 is transferred to the surface of the base material 10 on which the printing part 40 is formed. Thereby, the printing tape with which the printing part 40 was formed between the base material 10 and adhesive layer 20 'is obtained. Moreover, in the intermediate body 101 for tape, the adhesive force (the said adhesive force (b)) of the base material 10 and the adhesive layer 20 is the surface of the base material 10 in which the printing part 40 was formed, and adhesive layer 20 '. Is larger than the adhesive force (corresponding to the adhesive force (a)). Therefore, the pressure-sensitive adhesive layer 20 can be easily peeled off from the tape intermediate body to which the pressure-sensitive adhesive layer 20 ′ has been transferred.

<C. Printing tape>
The printing tape of this invention is obtained by the manufacturing method of the printing tape using the said intermediate body for tapes. In the pressure-sensitive adhesive layer of the printing tape obtained by the method for producing a printing tape, the surface in contact with the adherend is not in contact with the release layer containing a release agent. Therefore, the surface in contact with the adherend of the pressure-sensitive adhesive layer of the printing tape does not contain a release agent. Therefore, the printing tape of the present invention can prevent the adherend from being contaminated by the release agent.

  EXAMPLES Hereinafter, although an Example demonstrates this invention concretely, this invention is not limited by these Examples. In Examples, “parts” and “%” are based on weight unless otherwise specified.

[Reference Example 1] Preparation of pressure-sensitive adhesive composition Acrylic pressure-sensitive adhesive (manufactured by Toyochem, trade name “Olivein BPS5213K”, solid content: 35 wt%) and 100 parts by weight of an isocyanate-based curing agent (manufactured by Toyo Ink Co., Ltd.) , Trade name “BHS-8515”, solid content: 37.5 wt%) and 2 parts by weight to obtain a pressure-sensitive adhesive composition. Using the obtained pressure-sensitive adhesive composition, the adhesive strength to the stainless steel plate and the adhesive strength to the OPP film were evaluated by the following methods.

[Reference Example 2]
A pressure-sensitive adhesive composition was obtained in the same manner as in Reference Example 1 except that an acrylic pressure-sensitive adhesive (manufactured by Seiden Chemical Co., Ltd., solid content: 30% by weight) was used. Using the obtained pressure-sensitive adhesive composition, the adhesive strength to the stainless steel plate and the adhesive strength to the OPP film were evaluated by the following methods.

[Reference Example 3]
A pressure-sensitive adhesive composition was obtained in the same manner as in Reference Example 1 except that an acrylic pressure-sensitive adhesive (trade name “AT-1205”, manufactured by Seiden Chemical Co., Ltd., solid content: 55% by weight) was used. Using the obtained pressure-sensitive adhesive composition, the adhesive strength to the stainless steel plate and the adhesive strength to the OPP film were evaluated by the following methods.

[Evaluation of adhesive strength to stainless steel plate and OPP film]
The surface of the OPP film (trade name “FOS”, manufactured by Futamura Chemical Co., Ltd.) that has not been subjected to corona treatment is coated so that the pressure-sensitive adhesive composition obtained in Reference Examples 1 to 3 has a thickness of 15 μm after drying. -It dried and produced the adhesive sheet for evaluation. The obtained pressure-sensitive adhesive sheet for evaluation is a stainless plate or OPP film (trade name “FOS”, manufactured by Futamura Chemical Co., Ltd.) that has not been subjected to corona treatment (untreated) or has been subjected to corona treatment (treated). And held at room temperature for 1 minute. After holding, it was set in a tensile tester, and a 180 ° peel test was performed at a peel rate of 300 mm under the conditions of a temperature of 23 ° C. and a humidity of 50% RH, and the adhesive strength to the stainless steel plate and the OPP film was evaluated. From the adhesive strength to the obtained stainless steel plate and the OPP film, those that can be suitably used for the tape intermediate of the present invention are ◯, those that can be used for the tape intermediate are △, tapes that require attention when peeling, tape Those that were not suitable for use as intermediates were marked with x. The results are shown in Table 1.

[Example 1] Production of intermediate for tape An OPP film (trade name “FOS”, manufactured by Futamura Chemical Co., Ltd.) whose corona treatment was previously applied to one surface was obtained in Reference Example 1 on the surface that was not subjected to corona treatment. The pressure-sensitive adhesive composition was applied and dried to form a pressure-sensitive adhesive layer (15 μm). A composition comprising a light release mold release agent (manufactured by Yufu Kogyo Co., Ltd., trade name “Pyrole 1050”) on the surface of another OPP film (Futamura Chemical Co., trade name “FOS”) which has not been subjected to corona treatment. Was applied and dried to prepare a separator (thickness 40 μm). The obtained separator and the pressure-sensitive adhesive layer were bonded to obtain an intermediate for tape.

[Evaluation of adhesive strength]
Using the OPP film (trade name “FOS”, manufactured by Futamura Chemical Co., Ltd.) that has been previously corona-treated on one side, the surface of the OPP film that has been corona-treated, and the intermediate for tape of Example 1 with the separator peeled off The laminate was obtained by laminating the body pressure-sensitive adhesive layer. A test piece having a width of 50 mm and a length of 125 mm was produced using the obtained laminate. Using this test piece, the adhesive force between the adhesive layer of the intermediate for tape and the substrate, and the adhesive force between the corona-treated surface of the OPP film and the adhesive layer of the intermediate for tape were evaluated. The adhesive strength was measured by setting each test piece in a tensile tester and performing a 180 ° peel test at a peel speed of 300 mm under the conditions of a temperature of 23 ° C. and a humidity of 50% RH. The adhesive force between the base material of the tape intermediate and the pressure-sensitive adhesive layer was 6.95 N / 50 mm. The corona-treated surface of the OPP film and the adhesive layer of the intermediate for tape could not be peeled by this evaluation method. Therefore, it was considered that the adhesive strength between these layers exceeded the upper limit of 9.45 N / 50 mm.

Example 2 Production of Printing Tape A printing tape was produced using the tape intermediate obtained in Example 1. Printing was performed on the base material surface of the long tape intermediate obtained in Example 1 using a thermal transfer printer (trade name “P-touch”, manufactured by Brother Industries, Ltd.). The separator is peeled off from the printed tape intermediate, and the surface on which the printing portion of the base material of the tape intermediate is formed comes into contact with the adhesive layer of the tape intermediate using a winding device. Thus, the intermediate for tape was wound up, and the surface of the substrate on which the printing part was formed was bonded to the pressure-sensitive adhesive layer to obtain a roll-shaped laminate. The base material of the outermost layer is peeled off from the obtained laminate, and the pressure-sensitive adhesive layer formed on the base material is transferred to the surface on which the printed portion of the base material located inside the peeled base material is formed. , Got a printing tape.

  When the obtained printing tape was affixed to a to-be-adhered body, the favorable visibility of the printed part was ensured. In the obtained printing tape, the adhesive layer was not broken. Moreover, in the printing tape after affixing, the float etc. were not confirmed between the base material and the adhesive layer.

  The intermediate for tape of the present invention can be suitably used in the method for producing a printing tape of the present invention. By using the tape intermediate of the present invention, only the tape intermediate of the present invention, that is, without using another tape intermediate, a printed portion is formed between the base material and the adhesive layer. The printed tape can be easily manufactured.

DESCRIPTION OF SYMBOLS 10 Base material 20 Adhesive layer 30 Separator 40 Printing part 100, 100 'Intermediate body for tapes 200, 200' Laminated body

Claims (8)

A substrate, and an adhesive layer;
(A) Adhesive force obtained by bonding the adhesive layer to the surface of the substrate that is not in contact with the adhesive layer, and (b) Adhesive force between the substrate and the adhesive layer in the tape intermediate ( a)> have a relationship of (b),
A tape intermediate having a ratio ((a) / (b)) of the adhesive force (a) to the adhesive force (b) of 1.5 to 20,
The intermediate for tape is an intermediate used in a method for producing a printing tape in which a printed part is formed between a substrate and an adhesive layer,
The intermediate body for tapes in which this manufacturing method includes the process of forming a printing part in the surface on the opposite side to this adhesive layer of this base material. The surface modification treatment on the surface not in contact with the adhesive layer of the substrate is subjected, tape intermediate of claim 1. The intermediate body for tapes of Claim 1 or 2 by which the mold release process is performed to the surface which contact | connects the adhesive layer of the said base material. The intermediate body for tapes in any one of Claim 1 to 3 whose ratio of the adhesive force with respect to the stainless steel plate of the said adhesive layer and the adhesive force with respect to a biaxially stretched polypropylene film is 1.5 or more. The tape intermediate according to any one of claims 1 to 4 , further comprising a separator. The tape intermediate according to any one of claims 1 to 5 , wherein the adhesive force (a) is 1.6 N / 50 mm or more. The tape intermediate according to any one of claims 1 to 6 , wherein the adhesive force (b) is 0.05 N / 50 mm to 7 N / 50 mm. The tape intermediate according to any one of claims 1 to 7 , wherein the substrate is a transparent or translucent resin film.

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