JP2003167521A - Label - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a label having a peelable piece of a delivery slip or the like which has excellent workability during issue and delivery, does not peel on an unintended occasion and can be surely peeled by a distinct will. <P>SOLUTION: The label includes a first sheet base material and a second sheet base material and the second sheet base material is tack paper consisting of a tack paper base material, tacky adhesive and release paper. The two base materials are bonded to each other over the entire surface by interposing a rerelease layer in at least a portion of their regions. The adhesive strength between the tacky adhesive and the release paper is specified to be the adhesive strength below 495 mN/25 mm in the value measured by the T type peeling method stipulated in JIS-K 6854-1977 'A method of testing adhesive strength to peeling of an adhesive' and the adhesive strength below 44% of the adhesive strength by the 180° peeling method of the repeeled and bonded part between the two base materials. The adhesive strength of the repeeled and bonded part is specified to the adhesive strength greater than 186 mN/25 mm in the value measured by the 180° peeling method stipulated in JIS-K 6854-1977 'A method of testing adhesive strength to peeling of an adhesive' and below 1,519 mN/25 mm. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention includes a first substrate and a second substrate, and at least a partial region between both substrates has a peelable piece adhered via a re-peeling layer. Regarding the label.

[0002]

2. Description of the Related Art Conventionally, a first base material made of high-quality paper or the like and a second base material made of tack paper or the like are included, and both base materials have a removable layer interposed in a partial region between the base materials. A label having a peelable piece such as a delivery slip, which is adhered and integrated over the entire surface, is used for a delivery slip or the like.

In this label, if the adhesive strength of the re-peeling layer is high, the delivery slip adhered to the tack paper via the re-peeling layer curls when peeled from the tack paper, and conversely the adhesive strength is too weak. And curl after peeling disappears, but 1
When used as a part delivery slip, there was a possibility that the delivery slip might be dropped due to some shock during delivery after it was attached to the package. In other words, until now, emphasis was placed on the certainty at the time of issuance (certainty in the process of printing the prescribed items on the delivery slip and attaching it to the package), or at the time of delivery (peeling the delivery slip from the delivery slip). However, it is necessary to select the adhesive force of the re-peelable adhesive portion depending on whether the importance is attached to the workability of carrying out the delivery destination during the delivery work.

From the side of printing a predetermined item on the slip and the side of attaching the printed slip to the package, the worker can stably use the delivery slip if the adhesive force of the removable peeling portion is higher, but the adhesive force is higher. "Delivery slip" that is peeled off at the time of delivery when the cost becomes higher
Tend to curl significantly after peeling, so 10
It is difficult for a delivery worker who has a bundle of 0 or more sheets to roll up the delivery slips at the time of judgment, and in the worst case, some of the delivery slips remain folded in the bundle of delivery slips. , Which could cause a delivery failure accident.

In this situation, the delivery slip is gradually shifting to the one-part slip method, which is familiar to the IT shift, as the IT shift is promoted. In general, the purpose of IT is supposed to be (1) cost reduction by rationalizing workability, and (2) improvement of service quality. Not necessarily, and on the other hand, useless work has been forced.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to have a peelable piece such as a delivery slip which is excellent in workability at the time of issuing and delivering, and which can be surely peeled by a clear intention without peeling when not intended. Is to provide a label.

[0007]

Needless to say, if the adhesive force of the re-peelable adhesive portion is light, the delivery slip will be easily peeled off as compared with the case of being heavy. However, it is known that the force of peeling off the attached 1-part delivery slip is hardly applied at the time of delivery, and that the re-peeling adhesive part is quite strong against the shearing force applied when loading and unloading packages. .

As a result of research on peeling and dropping of the delivery slip, the present inventor has found that one of the causes is the operation of peeling off the release paper of the label.

That is, when the adhesive force between the adhesive and the release paper is strong, the one-part delivery slip itself bends inward when peeled off from the release paper, and if it cannot withstand the stress received at this time, it bends at the time of peeling. Found that the delivery slip may peel off due to the force of flattening the bent slip at the stage of attaching the label to the package even if it endures.

In many cases, only the end face of the delivery slip rises to the extent that the person who affixes the label does not even notice. As a result, if the adhesive strength is reduced, the lift of the end surface may cause the delivery slip to drop off during delivery.

From the above, "when the release paper is peeled off or when the delivery slip is attached to a package such as a cardboard box, the end of the delivery slip does not float up. It is possible to prevent the delivery slip from falling off during delivery by setting the adhesive strength of
That is, there is no practical problem if the adhesive force between the pressure-sensitive adhesive and the release paper is set in accordance with the decrease in the adhesive force of the peeling portion ", and the present invention was completed.

The invention as set forth in claim 1 is to solve the above problems and includes a first base material and a second base material, and the second base material is a tack paper base material, an adhesive and a release paper. In a label formed by adhering the entire surface of both base materials with a re-release layer interposed in at least a part of both base materials, the adhesive force between the adhesive and the release paper is JIS-K6854.
-1977 Adhesive strength of less than 495 mN / 25 mm as measured by the T-type peeling method specified in "Adhesive peeling adhesive strength test method", and 180 degree peeling method of re-peeling adhesive part between both base materials The gist is a label characterized by having an adhesive strength of 44% or less of the adhesive strength by

In the label of the present invention, the adhesive strength of the re-adhesion portion is 186 mN / 25 mm as measured by the 180-degree peeling method specified in JIS-K6854-1977 "Adhesive peeling strength test method". Greater than 1519mN
An adhesive strength of less than / 25 mm is desirable.

The adhesive force between the adhesive and the release paper is JIS-K.
6854-1977 Measured value by T-type peeling method stipulated in "Peeling Adhesive Strength Testing Method for Adhesives" 495mN / 25m
The adhesive force of less than m and the adhesive force of 44% or less of the adhesive force of the re-peelable adhesion portion between the two base materials by the 180-degree peeling method allows the release paper to be separated through the re-peelable layer. The ends of the peelable pieces adhered together are lifted up so that the peelable pieces do not peel off and fall off.

Further, the adhesive strength of the re-peelable adhesive portion is determined by JIS-K.
6854-1977 Measured value by 180 degree peeling method specified in "Peeling adhesive strength test method of adhesive", 186 mN /
By setting the adhesive force to be larger than 25 mm and smaller than 1519 mN / 25 mm, it is possible to reduce the occurrence of curling when the peelable piece is peeled off.

[0016]

1 is a schematic sectional view of a label of the present invention. The label of the present invention includes a first base material 1 made of high quality paper or the like and a second base material 2 made of tack paper or the like. A re-peeling layer 3 is provided on the upper surface of the first base material in a partial region corresponding to the delivery slip between the two base materials 1 and 2, and a half cut 4 is engraved along the periphery of the re-peeling layer 3. A part of the first base material 1 is configured to be peelable from the second base material 2, and the re-peelable layer 3 exhibits re-peelability with respect to the adhesive layer 5 for adhering the both base materials 1 and 2. . In the figure, 6 is a tack paper base, 7 is an adhesive layer, and 8 is a release paper.

FIG. 2 is a schematic cross-sectional view of another embodiment of the label of the present invention. The label of the present invention includes a first base material 1 made of high quality paper or the like and a second base material 2 made of tack paper or the like. A re-peeling layer 3 is provided on the back surface of the first base material in a partial area corresponding to the delivery slip between the two base materials 1 and 2, and a half cut 4 is engraved along the periphery of the re-peeling layer 3. A part of the first base material 1 is configured to be peelable from the second base material 2, and the re-peelable layer 3 exhibits re-peelability with respect to the adhesive layer 5 for adhering the both base materials 1 and 2. . In the figure, 6 is a tack paper base, 7
Indicates an adhesive layer, and 8 indicates a release paper.

The adhesive force between the adhesive 7 and the release paper 8 is JIS
-K6854-1977 "Peeling adhesive strength test method for adhesives"
495mN / 2 measured by the T-type peeling method
The adhesive force is less than 5 mm and 44% or less of the adhesive force of the re-peelable adhesion portion between the base materials 1 and 2 by the 180-degree peeling method.

The adhesive strength of the re-peelable adhesive part is JIS-K685.
4-1977 Measured by 180 degree peeling method stipulated in "Peeling adhesive strength test method of adhesive", 186mN / 25m
It is desirable that it is greater than m and less than 1519 mN / 25 mm.

The adhesive force between the adhesive 7 and the release paper 8 is JIS
-K6854-1977 "Peeling adhesive strength test method for adhesives"
495mN / 2 measured by the T-type peeling method
The adhesive force of less than 5 mm and 44% or less of the adhesive force of the re-peelable adhesive portion between the base materials 1 and 2 by the 180-degree peeling method allows the release paper 8 to be released The end of the delivery slip, which is a feasible piece, is lifted up, and the lifted end does not cause the peelable piece to peel off and fall off, thus preventing a falling accident during delivery.

Further, the adhesive strength of the re-peelable adhesive portion is determined by JIS-K.
6854-1977 Measured value by 180 degree peeling method specified in "Peeling adhesive strength test method of adhesive", 186 mN /
By setting the adhesive force to be larger than 25 mm and 1519 mN / 25 mm or less, it is possible to reduce the occurrence of curling when the peelable piece is peeled off.

Example 1 A first base material made of high-quality paper and a second base material made of tack paper are included, and a re-peelable layer is provided in a partial area corresponding to a delivery slip between the base materials. Labels A to M were prepared by using the same tack paper (adhesive force between adhesive and release paper [mN / 25 mm] = 196 [mN / 25 mm] and changing adhesive force of delivery slip.

Sample A: The above-mentioned tack paper was used as the tack paper, and the re-peeling layer was 5 g / m of UV curable offset ink containing 5% of silicone acrylate on the back side of the NIP quality paper <70> by the offset printing method. ^It was solidly printed so that it would be ² . The adhesive layer between the two substrates is coated with a vinyl acetate emulsion by the gravure reverse method so that it will be 3 g / m ² after drying.
6 [mN / 25 mm].

Sample B: The above-mentioned tack paper was used as the tack paper, and the re-peeling layer was a UV-curable offset ink containing 5% of silicone acrylate on the back side of the NIP quality paper <70> by the offset printing method at 5 g / m 2. ^It was solidly printed so that it would be ² . The adhesive layer between the two substrates is coated with a vinyl acetate emulsion by the gravure reverse method so that it will be 4 g / m ² after drying.
It was set to 45 [mN / 25 mm].

Sample C: The above-mentioned tack paper was used as the tack paper, and the re-peeling layer was a UV curing type offset ink containing 5% of silicone acrylate on the back side of the NIP quality paper <70> by the offset printing method at 5 g / m. ^It was solidly printed so that it would be ² . The adhesive layer between the two base materials is coated with a vinyl acetate emulsion by the gravure reverse method so that it will be 5 g / m ² after drying.
23 [mN / 25 mm].

Sample D: The above-mentioned tack paper was used as the tack paper, and the re-peeling layer was 4 g / m of UV curable offset ink containing 5% of silicone acrylate on the back side of the NIP quality paper <70> by the offset printing method. ^It was solidly printed so that it would be ² . The adhesive layer between the two base materials is coated with a vinyl acetate emulsion by the gravure reverse method so that it will be 3 g / m ² after drying.
It was set to 61 [mN / 25 mm].

Sample E: The above-mentioned tack paper was used as the tack paper, and the re-peeling layer was 4 g / m of UV curable offset ink containing 5% of silicone acrylate on the back side of the NIP quality paper <70> by the offset printing method. ^It was solidly printed so that it would be ² . The adhesive layer between the two substrates was coated with a vinyl acetate emulsion by the gravure reverse method so that it would be 4 g / m ² after drying.
It was set to 98 [mN / 25 mm].

Sample F: The above tack paper was used as the tack paper, and the removable layer was 4 g / m of UV curable offset ink containing 5% of silicone acrylate on the back side of the high quality paper for NIP <70> by the offset printing method. ^It was solidly printed so that it would be ² . The adhesive layer between the two base materials was coated with a vinyl acetate emulsion by the gravure reverse method so that it would be 5 g / m ² after drying.
It was set to 55 [mN / 25 mm].

Sample G: The above-mentioned tack paper was used as the tack paper, and the re-peeling layer was 3 g / m of UV curable offset ink containing 5% of silicone acrylate on the back side of the NIP quality paper <70> by the offset printing method. ^It was solidly printed so that it would be ² . The adhesive layer between the two substrates was coated with a vinyl acetate emulsion by the gravure reverse method so that it would be 3 g / m ² after drying.
It was set to 31 [mN / 25 mm].

Sample H: The above-mentioned tack paper was used as the tack paper, and the re-peeling layer was 3 g / m of UV curable offset ink containing 5% of silicone acrylate on the back side of the NIP quality paper <70> by the offset printing method. ^It was solidly printed so that it would be ² . The adhesive layer between the two substrates is coated with a vinyl acetate emulsion by gravure reverse method so that it will be 4 g / m ² after drying.
147 [mN / 25 mm].

Sample I: The above tack paper was used as the tack paper, and the re-peeling layer was 3 g / m of UV curable offset ink containing 5% of silicone acrylate on the back side of the NIP quality paper <70> by the offset printing method. ^It was solidly printed so that it would be ² . The adhesive layer between the two base materials is coated with a vinyl acetate emulsion by the gravure reverse method so that it will be 5 g / m ² after drying.
323 [mN / 25 mm].

Sample J: The above-mentioned tack paper was used as the tack paper, and the re-peeling layer was 3 g / m of UV curable offset ink containing 3% of silicone acrylate on the back side of the NIP quality paper <70> by the offset printing method. ^It was solidly printed so that it would be ² . The adhesive layer between the two substrates was coated with a vinyl acetate emulsion by the gravure reverse method so that it would be 3 g / m ² after drying.
519 [mN / 25 mm].

Sample K: The above-mentioned tack paper was used as the tack paper, and the re-peeling layer was 3 g / m of the UV curable offset ink containing 3% of silicone acrylate on the back side of the high-quality NIP paper <70> by the offset printing method. ^It was solidly printed so that it would be ² . The adhesive layer between the two substrates is coated with a vinyl acetate emulsion by gravure reverse method so that it will be 4 g / m ² after drying.
705 [mN / 25 mm].

Sample L: The above tack paper was used as the tack paper, and the re-peeling layer was 3 g / m by UV printing type offset ink containing 3% of silicone acrylate on the back side of the NIP quality paper <70> by the offset printing method. ^It was solidly printed so that it would be ² . The adhesive layer between the two base materials is coated with a vinyl acetate emulsion by the gravure reverse method so that it will be 5 g / m ² after drying.
970 [mN / 25 mm].

Sample M: The above tack paper was used as the tack paper, and the re-peeling layer was 3 g / m of the UV curable offset ink containing 3% of silicone acrylate on the back side of the NIP quality paper <70> by the offset printing method. ^It was solidly printed so that it would be ² . The adhesive layer between the two substrates is coated with a vinyl acetate emulsion by the gravure reverse method so that it will be 6 g / m ² after drying.
215 [mN / 25 mm].

Regarding the above-mentioned samples, workability in attaching a label to a package (presence or absence of floating edge of delivery slip when attaching a label) and workability in delivering a package (peeling of label during delivery) Existence and occurrence of curl) were examined. The results of the survey are shown in Table 1.

[0037]

[Table 1]

As shown in Table 1, when the adhesive strength between adhesive and release paper / adhesion strength of delivery slip (percentage) is 43% or more, the end of the delivery slip does not float and the delivery slip does not fall off during delivery. However, the adhesive strength of the delivery slip is 1519 [mN / 25m
m] or more, it was found that some curling occurs in the peeled delivery slip.

(Example 2) In the same manner as in Example 1, for the following samples A-LLL to JK, the adhesive strength [mN / 25 mm] of the delivery slip and the adhesive strength [mN] between the adhesive and the release paper.
/ 25 mm] were both varied and investigated.

Sample A-LLL: Tack paper is an adhesive
Adhesion between release papers = 69 [mN / 25 mm] tack paper is used, and the re-release layer is UV printing type offset ink containing 5% of silicone acrylate on the back side of high-quality NIP paper <70> by offset printing method. Solid printing was performed so as to obtain 5 g / m ² . The adhesive layer between the two substrates was coated with a vinyl acetate emulsion by a gravure reverse method so as to have a dryness of 3 g / m ^2, and the adhesive strength of the delivery slip was 186 [mN / 25 mm].

Sample A-LL: As tack paper, tack paper with adhesive strength between adhesive and release paper = 108 [mN / 25 mm] was used, and the re-peeling layer was silicone acrylate on the back side of NIP quality paper <70>. Was solid-printed at a rate of 5 g / m ² by an offset printing method. The adhesive layer between the two substrates was coated with a vinyl acetate emulsion by a gravure reverse method so as to have a dryness of 3 g / m ^2, and the adhesive strength of the delivery slip was 186 [mN / 25 mm].

Samples A-L: As tack paper, tack paper having an adhesive strength between adhesive and release paper = 137 [mN / 25 mm] was used, and the re-peeling layer was silicone acrylate on the back side of NIP quality paper <70>. Was solid-printed at a rate of 5 g / m ² by an offset printing method. The adhesive layer between the two substrates was coated with a vinyl acetate emulsion by the gravure reverse method so that it would be 3 g / m ² after drying.
It was set to 86 [mN / 25 mm].

Sample A: As tack paper, tack paper having an adhesive force between adhesive and release paper = 196 [mN / 25 mm] was used, and the re-peeling layer was made of NIP quality paper <70> with silicone acrylate 5 on the back side. % UV-curable offset ink was solid-printed by an offset printing method so as to have a weight of 5 g / m ² . The adhesive layer between the two base materials is coated with a vinyl acetate emulsion by the gravure reverse method so that it will be 3 g / m ² after drying.
6 [mN / 25 mm].

Sample B-LLL: Tack paper is adhesive-
Adhesion between release papers = 69 [mN / 25 mm] tack paper is used, and the re-release layer is UV printing type offset ink containing 5% of silicone acrylate on the back side of high-quality NIP paper <70> by offset printing method. Solid printing was performed so as to obtain 5 g / m ² . The adhesive layer between the two substrates was coated with a vinyl acetate emulsion by a gravure reverse method so as to have a dry weight of 4 g / m ^2, and the adhesive strength of the delivery slip was 245 [mN / 25 mm].

Sample B-LL: As tack paper, tack paper having adhesive strength between adhesive and release paper = 108 [mN / 25 mm] was used, and the re-peeling layer was silicone acrylate on the back side of the high-quality NIP paper <70>. Was solid-printed at a rate of 5 g / m ² by an offset printing method. The adhesive layer between the two substrates was coated with a vinyl acetate emulsion by a gravure reverse method so as to have a dry weight of 4 g / m ^2, and the adhesive strength of the delivery slip was 245 [mN / 25 mm].

Sample BL: As tack paper, tack paper having an adhesive strength between adhesive and release paper = 137 [mN / 25 mm] was used, and the re-peeling layer was silicone acrylate on the back side of NIP fine paper <70>. Was solid-printed at a rate of 5 g / m ² by an offset printing method. The adhesive layer between the two substrates is coated with a vinyl acetate emulsion by the gravure reverse method so that it will be 4 g / m ² after drying.
It was set to 45 [mN / 25 mm].

Sample B: As tack paper, tack paper having an adhesive force between adhesive and release paper = 196 [mN / 25 mm] was used, and the re-peeling layer was made of high-quality NIP paper <70> with silicone acrylate 5 on the back side. % UV-curable offset ink was solid-printed by an offset printing method so as to have a weight of 5 g / m ² . The adhesive layer between both substrates was coated with a vinyl acetate emulsion by the gravure reverse method so that it would be 4 g / m ² after drying.
It was set to 5 [mN / 25 mm].

Sample C-LLL: Tack paper is adhesive
Adhesion between release papers = 69 [mN / 25 mm] tack paper is used, and the re-release layer is UV printing type offset ink containing 5% of silicone acrylate on the back side of high-quality NIP paper <70> by offset printing method. Solid printing was performed so as to obtain 5 g / m ² . The adhesive layer between the two substrates was coated with a vinyl acetate emulsion by a gravure reverse method so as to have a dry weight of 5 g / m ^2, and the adhesive strength of the delivery slip was 323 [mN / 25 mm].

Sample C-LL: As tack paper, tack paper having adhesive strength between adhesive and release paper = 108 [mN / 25 mm] was used, and the re-peeling layer was silicone acrylate on the back side of high-quality NIP paper <70>. Was solid-printed at a rate of 5 g / m ² by an offset printing method. The adhesive layer between the two substrates was coated with a vinyl acetate emulsion by a gravure reverse method so as to have a dry weight of 5 g / m ^2, and the adhesive strength of the delivery slip was 323 [mN / 25 mm].

Sample CL: As tack paper, tack paper having an adhesive force between adhesive and release paper = 137 [mN / 25 mm] was used, and the re-peeling layer was silicone acrylate on the back side of high-quality NIP paper <70>. Was solid-printed at a rate of 5 g / m ² by an offset printing method. The adhesive layer between the two base materials is coated with a vinyl acetate emulsion by the gravure reverse method so that it will be 5 g / m ² after drying.
23 [mN / 25 mm].

Sample C: As tack paper, tack paper having an adhesive force between adhesive and release paper = 196 [mN / 25 mm] was used, and the re-release layer was made of NIP fine paper <70> with silicone acrylate 5 on the back side. % UV-curable offset ink was solid-printed by an offset printing method so as to have a weight of 5 g / m ² . The adhesive layer between the two base materials is coated with a vinyl acetate emulsion by the gravure reverse method so that it will be 5 g / m ² after drying.
3 [mN / 25 mm].

Sample I: As tack paper, tack paper having an adhesive strength between adhesive and release paper = 196 [mN / 25 mm] was used, and the re-peeling layer was made of high-quality NIP paper <70> with silicone acrylate 5 on the back side. % UV-curable offset ink was solid-printed by an offset printing method so as to have a weight of 3 g / m ² . The adhesive layer between the two base materials was coated with a vinyl acetate emulsion by the gravure reverse method so that it would be 5 g / m ² after drying.
23 [mN / 25 mm].

Samples I-H: As tack paper, tack paper having adhesive strength between adhesive and release paper = 304 [mN / 25 mm] was used, and the re-peeling layer was silicone acrylate on the back side of high-quality NIP paper <70>. Was solid-printed at a rate of 3 g / m ² by an offset printing method using a UV-curable offset ink containing 5% of. The adhesive layer between the two base materials is coated with a vinyl acetate emulsion by the gravure reverse method so that it will be 5 g / m ² after drying.
323 [mN / 25 mm].

Sample I-HH: As tack paper, tack paper having an adhesive force between adhesive and release paper = 495 [mN / 25 mm] was used, and the re-peeling layer was silicone acrylate on the back side of high-quality NIP paper <70>. Was solid-printed at a rate of 3 g / m ² by an offset printing method using a UV-curable offset ink containing 5% of. The adhesive layer between the two substrates was coated with a vinyl acetate emulsion by a gravure reverse method so as to have a weight of 5 g / m ² after drying, and the adhesive strength of the delivery slip was 1323 [mN / 25 mm].

Sample I-HHH: Tack paper is adhesive
Adhesion between release papers = 637 [mN / 25mm] tack paper is used, and the re-release layer is UV printing type offset ink containing 5% of silicone acrylate on the back side of NIP quality paper <70> by offset printing method. Solid printing was performed so as to obtain 3 g / m ² . The adhesive layer between the two substrates was coated with a vinyl acetate emulsion by a gravure reverse method so as to have a weight of 5 g / m ² after drying, and the adhesive strength of the delivery slip was 1323 [mN / 25 mm].

Sample J: As tack paper, tack paper having adhesive strength between adhesive and release paper = 196 [mN / 25 mm] was used, and the re-peeling layer was made of NIP fine paper <70> with silicone acrylate 3 on the back side. % UV-curable offset ink was solid-printed by an offset printing method so as to have a weight of 3 g / m ² . The adhesive layer between the two substrates is coated with a vinyl acetate emulsion by the gravure reverse method so that it will be 3 g / m ² after drying.
It was set to 19 [mN / 25 mm].

Sample JK: As tack paper, tack paper having an adhesive force between adhesive and release paper = 196 [mN / 25 mm] was used, and the re-peeling layer was made of high-quality NIP paper <70> with silicone acrylate 3 on the back side. % UV-curable offset ink was solid-printed by an offset printing method so as to have a weight of 3 g / m ² . The adhesive layer between the two substrates was coated with a vinyl acetate emulsion by the gravure reverse method so as to be 3.5 g / m ² after drying, and the adhesive strength of the delivery slip was 1620 [mN / 25 mm]. .

With respect to the above-mentioned samples, workability in attaching a label to a package (presence or absence of floating edge of delivery slip when attaching a label) and workability in delivering a package (peeling of label during delivery) Existence and occurrence of curl) were examined. The results of the survey are shown in Table 2.

[0059]

[Table 2]

As shown in Table 2, when the adhesive strength between adhesive and release paper / adhesion strength of delivery slip (percentage) is 44% or more, the end of the delivery slip does not float and the delivery slip does not fall off during delivery. However, the adhesive strength of the delivery slip is 1519 [mN / 25m
m] or more, it was found that some curling occurs in the peeled delivery slip.

From the results of Examples 1 and 2, it was found that there is a correlation between the adhesive strength of the delivery slip and the adhesive strength between the adhesive and the release paper. The findings of Examples 1 and 2 are summarized below. (1) Even if the adhesive strength of the delivery slip is light, if the adhesive strength between the adhesive and the release paper is low, it will not be peeled off when the delivery slip is attached, and there is no practical problem. (2) When the adhesive strength of the delivery slip exceeds 1519 mN / 25 mm, the curl of the delivery slip after peeling becomes large, which is inconvenient for practical use. (3) Adhesive force between adhesive and release paper is 495mN / 25m
If it exceeds m, the delivery slip itself becomes difficult to peel off.

[0062]

As described in detail above, according to the present invention, the adhesive force between the pressure-sensitive adhesive and the release paper is determined by JIS-K6854-.
1977 T stipulated in "Peeling Adhesive Strength Testing Method for Adhesives"
Adhesive strength of less than 495 mN / 25 mm as measured by the mold peeling method, and 180 of the re-peeling adhesive portion between both base materials 1 and 2.
By setting the adhesive strength to 44% or less of the adhesive strength by the peeling method, the end of the delivery slip, which is a peelable piece, rises when peeling the release paper, and the lifted edge triggers peeling. It is possible to prevent the accidental falling off during shipping without the possible pieces peeling off.

Further, the adhesive strength of the re-peelable adhesive portion is determined by JIS-K.
6854-1977 Measured value by 180 degree peeling method specified in "Peeling adhesive strength test method of adhesive", 186 mN /
By setting the adhesive force to be larger than 25 mm and smaller than 1519 mN / 25 mm, it is possible to reduce the occurrence of curling when the peelable piece is peeled off.

[Brief description of drawings]

FIG. 1 is a schematic sectional view of a label of the present invention.

FIG. 2 is a schematic cross-sectional view of another embodiment of the label of the present invention.

[Explanation of symbols]

1 1st substrate 2 2nd substrate 3 Removable layer 4 half cut 5 Adhesive layer 6 Tack paper base 7 Adhesive layer 8 Release paper

Claims (2)

[Claims] 1. A first base material and a second base material, wherein the second base material is a tack paper consisting of a tack paper base material, an adhesive and a release paper, and at least a part between the base materials. In the label which is adhered over the entire surface with the re-peelable layer interposed in the area of, the adhesive strength between the adhesive and the release paper is JIS-K685.
4-1977, the adhesive strength is less than 495 mN / 25 mm as measured by the T-type peeling method specified in "Adhesive peeling strength test method", and the peeling strength between the two base materials is 180.
A label having an adhesive force of 44% or less of the adhesive force by the peeling method. 2. The label according to claim 1, wherein the adhesive strength of the re-adhesion adhesion part is a value measured by a 180-degree peeling method specified in JIS-K6854-1977 “Test method for peeling adhesion strength of adhesive”. 1 larger than 186mN / 25mm
A label having an adhesive strength of less than 519 mN / 25 mm.