JP2011001072A - Method for sticking pressure-sensitive adhesive label, and labeler - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a labeler which surely releases even a relatively thin pressure-sensitive adhesive label and surely sticks the pressure-sensitive adhesive label at a specified position of a body to be stuck.SOLUTION: The labeler has a releasing unit 4 for releasing a pressure-sensitive adhesive label 3 from a releasing paper 2 of a pressure-sensitive adhesive label supplying strip 1 on which a plurality of the pressure-sensitive adhesive labels 3 are stuck in a line in the longitudinal direction on the strip of releasing paper 2. The releasing unit 4 has a first releasing part 41 in which an intermediate region 2M in the width direction of the releasing paper 2 other than the left and right regions 2L and 2R in the width direction of the releasing paper 2 is reversed, and the intermediate region 2M of the releasing paper 2 is released in the longitudinal direction from the pressure-sensitive adhesive label 3 while the left and right side ends of the pressure-sensitive adhesive label 3 are stuck on the left and right regions 2L and 2R of the releasing paper 2 as they are, and a second releasing part in which the left and right regions 2L and 2R of the releasing paper 2 are respectively released from the pressure-sensitive adhesive label 3 after the intermediate region 2M of the releasing paper 2 is released.

Description

  The present invention relates to a method for adhering an adhesive label to an adherend and a labeler used when adhering the adhesive label to an adherend.

Conventionally, when an adhesive label is mechanically attached to an adherend such as a container, an adhesive label supply strip and a labeler (labeling device) are used.
The adhesive label supply strip has a long strip-shaped release paper and a plurality of adhesive labels affixed side by side along the longitudinal direction on the release paper. After the adhesive label supply strip is loaded on the labeler, the release paper is reversed by the labeler, the adhesive label is peeled off from the release paper, and the adhesive label is attached to a predetermined position of the adherend.
If this adhesive label is relatively large and its thickness is thin, when the release paper is inverted, the adhesive label is also inverted together with the release paper, and as a result, the adhesive label may not be reliably peeled from the release paper. .

In view of such a problem, labelers as in Patent Documents 1 and 2 are known.
The labeler of Patent Document 1 has a container supply device that supplies a container to a label sticking device, and a label peeling unit for removing release paper from an adhesive label supply strip, and the adhesive peeled off in the label peeling unit A label supply device that supplies a label to a label supply position, a label application device that receives an adhesive label from the label supply device, conveys the adhesive label to a label application position, and adheres the adhesive label to a container, and an adhesive label A container delivery device for delivering the worn container. Further, the label peeling unit has a plurality of free rollers for alternately feeding the adhesive label supply strips, and the free roller on the most downstream side in the feeding direction of the adhesive label supply strips is in the vicinity of the tip of the release plate. (See [Claims], [0015] to [0021], and FIGS. 1 to 6 of Patent Document 1).
According to the labeler of Patent Document 1, the adhesive layer of the adhesive label is loosened while the adhesive label supply strip passes through the plurality of free rollers. For this reason, there exists an effect that it becomes easy to peel an adhesive label from a release paper.

Moreover, the labeler of patent document 2 is equipped with the container supply apparatus, the label supply apparatus which has a label peeling unit, the label sticking apparatus, and the container delivery apparatus similarly to the labeler of patent document 1. The label peeling unit has a guide plate having a substantially V-shaped leading edge, and the release paper divided into two at the leading edge of the guide plate is changed in direction and pulled out (see Patent Document 2). [0017] to [0020] and FIGS.
According to the labeler of Patent Document 2, in the label peeling unit, the two divided release papers are changed in direction with respect to each other and drawn out (one of the two divided release papers is 90 degrees left with respect to the release paper feeding direction). And the other of the two divided release papers is reversed and pulled out in the direction of 90 degrees to the right with respect to the release paper delivery direction). For this reason, there exists an effect that the thin adhesive label without a waist can be reliably peeled from a release paper.

JP 2008-239161 A JP 2006-143288 A

However, in the labeler of Patent Document 1, when the pressure-sensitive adhesive label is very thin, the pressure-sensitive adhesive label may not be peeled from the release paper even if the pressure-sensitive adhesive layer is sufficiently loosened.
On the other hand, in the labeler of Patent Document 2, when either one or the other of the two divided release papers is strongly tensioned, an adhesive label is placed on the strongly pulled side (left or right side in the width direction of the release paper). Easy to bias. For this reason, the peeling position of an adhesive label tends to shift | deviate to either the left side or the right side, and there exists a trouble that the sticking position of the adhesive label with respect to a to-be-adhered body will shift | deviate according to this.

  An object of the present invention is to provide an adhesive label attaching method and a labeler that can reliably peel even a relatively thin adhesive label and can reliably adhere an adhesive label to a predetermined position of an adherend. .

  In the present invention, the adhesive label is peeled from the release paper of the adhesive label supply strip in which a plurality of adhesive labels are pasted in the longitudinal direction on the strip-shaped release paper, and the adhesive labels are sequentially applied to the adherend. In the sticking method of the pressure-sensitive adhesive label to be stuck, the left and right side edges of the pressure-sensitive adhesive label are placed on the left and right areas of the release paper by inverting the intermediate area in the width direction of the release paper other than the left and right areas of the release paper. The step of peeling the intermediate area of the release paper from the pressure-sensitive adhesive label in the longitudinal direction and the left and right areas are peeled from the pressure-sensitive adhesive label substantially simultaneously or A step of attaching the pressure-sensitive adhesive label to the adherend after peeling.

In the adhesive label sticking method of the present invention, when the intermediate area of the release paper is reversed, the left and right end portions of the adhesive label remain stuck on the left and right areas of the release paper. There is no possibility that the adhesive label is reversed together with the intermediate region.
When the intermediate area of the release paper is peeled off from the adhesive label, the back surface of the intermediate portion including the leading edge of the adhesive label is exposed. For this reason, when the left and right areas of the release paper are peeled off, the left and right areas of the release paper can be peeled off from the back surface of the pressure sensitive adhesive label without the adhesive labels following the left and right areas.
In this way, if the left and right areas of the release paper are peeled off after first peeling the intermediate area of the release paper, the release paper can be reliably peeled even if a relatively thin adhesive label is affixed to the release paper. The adhesive label can be prevented from shifting to the left or right in the width direction.
Then, when the left and right areas of the release paper are peeled off from the pressure-sensitive adhesive label, the pressure-sensitive adhesive label is securely stuck to a predetermined position of the adherend by attaching the pressure-sensitive adhesive label to the adherend substantially simultaneously or after peeling. be able to.

In a preferred method for sticking an adhesive label of the present invention, two cleavage lines are formed in the width direction of the release paper in the surface of the release paper of the adhesive label supply continuous body. The region is a region between the two cleavage lines.
In such a continuous body for supplying an adhesive label, a cleavage line is formed on the release paper, so that the intermediate region of the release paper can be reliably peeled along the cleavage line.

According to another aspect of the invention, a labeler is provided.
This labeler has a peeling unit that peels the adhesive label from the release paper of the adhesive label supply strip in which a plurality of adhesive labels are attached in a longitudinal direction on the strip-shaped release paper, and the peeling unit comprises: Reverse the width direction intermediate region of the release paper other than the width direction left and right regions of the release paper, and leave the left and right end portions of the adhesive label on the left and right regions of the release paper, respectively. It has a 1st peeling part which peels from an adhesive label to a longitudinal direction, and a 2nd peeling part which peels from the adhesive label each right and left area of the release paper after peeling the intermediate | middle area | region of the said release paper.

According to the sticking method and labeler of the pressure-sensitive adhesive label of the present invention, the release paper can be peeled off from the pressure-sensitive adhesive label even when a relatively thin pressure-sensitive adhesive label is stuck on the strip-shaped release paper (the pressure-sensitive adhesive label can be peeled off from the release paper). ).
Furthermore, according to the sticking method and labeler of the adhesive label of this invention, an adhesive label can be reliably stuck to the predetermined position of a to-be-adhered body.

The partial omission top view of the strip | belt-shaped object for adhesive label supply of this invention. The same part abbreviation rear view. III-III sectional view taken on the line of FIG. The schematic block diagram of the labeler which concerns on one embodiment. The right view which expanded a part of label supply apparatus of FIG. The reference perspective view which expanded a part of the label supply apparatus of FIG. The perspective view of a peeling plate. The right side view. The schematic block diagram of the labeler which concerns on other embodiment. The perspective view of the peeling plate which concerns on other embodiment.

Hereinafter, the present invention will be specifically described with reference to the drawings.
(Strip for supplying adhesive label)
1 to 3, reference numeral 1 denotes a strip for supplying an adhesive label in which a plurality of adhesive labels 3 are stuck on the surface of the release paper 2 side by side in the longitudinal direction of the release paper 2.
The release paper 2 has a long and thin strip-like base material and a release layer formed by applying a silicone resin or the like on the surface of the base material.
The base material of the release paper 2 is not particularly limited, and examples thereof include paper, synthetic paper, synthetic resin films, and laminated sheets thereof. Preferably, a base material having tearability in the longitudinal direction is used. When a perforation line or a half-cut line is employed as the tear lines 21 and 22, the release paper 2 can be reliably cut along the tear lines 21 and 22 by using a base material having tearability in the longitudinal direction.
As a base material having tearability in the longitudinal direction, for example, a synthetic resin film or synthetic paper stretched at least in the longitudinal direction (a synthetic resin film or synthetic paper uniaxially stretched in the longitudinal direction, or the longitudinal direction and width) Biaxially stretched synthetic resin film or synthetic paper) each stretched in the direction. The material of the base material is not particularly limited, but polyester is preferable because of excellent tearability.
The thickness of the release paper 2 is appropriately set according to mechanical strength and the like, but is usually about 30 μm to 100 μm.

  In the surface of the release paper 2, at least two cleavage lines 21 and 22 are formed. The two cleavage lines 21 and 22 are formed so as to be spaced apart in the width direction of the release paper 2 and linearly extend in the longitudinal direction of the release paper 2. Each of the tear lines 21 and 22 crosses the surface of each adhesive label 3 attached to the release paper 2 in the longitudinal direction. The two tear lines 21 and 22 (the first tear line 21 and the second tear line 22) divide the release paper 2 into three strip regions. In other words, by forming the two tear lines 21 and 22 on the release paper 2, the release paper 2 has a left region 2 </ b> L between the left edge of the release paper 2 and the first tear line 21, the first tear line 21 and An intermediate region 2M between the second cleavage lines 22 and a right region 2R between the second cleavage line 22 and the right edge of the release paper 2 are partitioned.

The interval between the first cleavage line 21 and the second cleavage line 22 (that is, the width of the intermediate region 2M of the release paper 2) is not particularly limited. However, if the spacing is too wide, the areas where the left and right end portions of the adhesive label 3 are pasted on the left and right regions 2L and 2R of the release paper 2 (each pasting area at the left and right end portions) become relatively narrow. Therefore, when the intermediate region 2M of the release paper 2 is peeled first, either one or both of the left and right end portions of the adhesive label 3 may be peeled off from the left and right regions 2L and 2R of the release paper 2. On the other hand, if the interval is too narrow, there is a possibility that the effect of separating the intermediate region 2M of the release paper 2 first will not be sufficiently achieved. From such a viewpoint, the interval is preferably in a range that satisfies the following formula.
Formula: 0.2 ≦ B / A ≦ 0.6. In the above formula, A represents the maximum width of the pressure-sensitive adhesive label (maximum width of the pressure-sensitive adhesive label in the direction perpendicular to the longitudinal direction of the release paper), and B represents the interval (separation) between the first cleavage line and the second cleavage line. This represents the width of the middle area of the paper pattern.
For example, when an adhesive label having a maximum width of 5 cm is affixed, the interval is preferably 1 cm to 3 cm.

  Further, the intermediate region 2M of the release paper 2 is preferably located at the center in the width direction of the adhesive label 3. By being positioned at the center in this way, the respective sticking areas of the left and right end portions of the pressure-sensitive adhesive label 3 on the left and right regions 2L and 2R of the release paper 2 become substantially equal. For this reason, when the intermediate area 2M of the release paper 2 is peeled off, it is possible to reliably prevent any one of the left and right end portions of the adhesive label 3 from being peeled from the left area 2L or the right area 2R of the release paper 2.

  Examples of the cleavage lines 21 and 22 include cutting lines, perforation lines, and half-cut lines. The cutting line is a score line obtained by completely cutting the release paper 2 in the thickness direction. The perforation line is a line in which a through-hole portion penetrating in the thickness direction of the release paper 2 is formed intermittently like a sewing mark of a sewing needle. The half-cut line is a non-cut line formed by cutting the release paper 2 into a substantially V-shape up to the middle of the release paper 2 in the thickness direction. The cleavage lines 21 and 22 preferably employ the cutting lines.

The pressure-sensitive adhesive label 3 is affixed in a line at a predetermined interval in the longitudinal direction of the release paper 2 across the first cleavage line 21 and the second cleavage line 22.
The pressure-sensitive adhesive label 3 is made of a known label, for example, a substrate 31 that has been subjected to design printing such as a product name or an advertisement and is formed in a predetermined planar shape (in the illustrated example, a rectangular shape in plan view), and And an adhesive layer 32 formed by providing an adhesive on the back surface of the substrate 31. The material of the base material 31 of the pressure-sensitive adhesive label 3 is not particularly limited, and examples thereof include paper, synthetic paper, a synthetic resin film, a metal vapor deposition film, and a laminated sheet thereof. Although the thickness of the base material 31 is not specifically limited, For example, they are 10 micrometers-100 micrometers. According to the sticking method and labeler of the pressure-sensitive adhesive label of the present invention, for example, a relatively thin pressure-sensitive adhesive label 3 having a base material 31 having a thickness of 10 μm to 50 μm, preferably a base material 31 having a thickness of 10 μm to 25 μm is a release paper. 2 can be used to reliably peel the release paper 2 from the pressure-sensitive adhesive label 3 (in other words, the pressure-sensitive adhesive label 3 can be reliably peeled from the release paper 2). Thus, the peeled adhesive label 3 can be reliably attached to a predetermined position of the adherend.
A pressure sensitive adhesive is used as the adhesive. A pressure-sensitive adhesive is an adhesive that has adhesiveness at room temperature and adheres to an adherend when pressed. Examples of the pressure-sensitive adhesive include solvent-based adhesives, emulsion-type adhesives, and hot-melt adhesives. The thickness of the adhesive layer 32 is usually about 3 to 30 μm.
In addition, since the strip | belt-shaped body 1 for adhesive label supply is elongate, it is normally wound and provided by roll shape.

(Adhesive labeling method and labeler)
In the sticking method and labeler of the pressure-sensitive adhesive label of the present invention, the pressure-sensitive adhesive label supply strip 1 is used.
The adhesive label sticking method of the present invention is such that the intermediate region 2M of the release paper 2 of the adhesive label supply strip 1 is reversed, so that the left and right sides of the adhesive label 3 are placed on the left and right regions 2L, 2R of the release paper 2. When the intermediate region 2M is peeled in the longitudinal direction from the pressure-sensitive adhesive label 3 with the ends attached, and the intermediate region 2M is peeled off and then the left and right regions 2L and 2R are peeled off from the pressure-sensitive adhesive label 3, respectively. A step of sticking the pressure-sensitive adhesive label to the adherend simultaneously or after peeling.
The labeler of the present invention is an apparatus for carrying out the sticking method, and after peeling the intermediate area 2M of the release paper 2 first, the left and right areas 2L and 2R are peeled off from the pressure-sensitive adhesive label 3, and the pressure-sensitive adhesive label. 3 is an apparatus for sequentially attaching 3 to an adherend.
As shown in FIGS. 4 to 6, the labeler 10 has a peeling unit for peeling the release paper 2 of the adhesive label supply strip 1 and supplies the adhesive label 3 to the label sticking device 6. The label supply device 5, the label sticking device 6 that receives the pressure-sensitive adhesive label 3 from the label supply device 5, and sticks the pressure-sensitive adhesive label 3 to the adherend A, and supplies the adherend A to the label sticking device 6. An adherend supply apparatus 7 for supplying the adherend, and an adherend delivery apparatus 8 for sending out the adherend A to which the adhesive label 3 is attached.
In addition, each arrow in FIG. 4 shows the rotation direction of the member of each apparatus, the feeding direction of the adhesive label supply strip, the release direction of the release paper, and the movement direction of the adherend, respectively. The drive device and the like are not shown.
Examples of the adherend A include a container filled with a beverage or the like, a packaging box for packaging a product, and the like.

The label supply device 5 is a device for peeling the adhesive label 3 from the release paper 2 of the adhesive label supply strip 1 and supplying the adhesive label 3 to the label attaching position of the label attaching device 6.
The label supply device 5 includes a roll setting unit 51 in which a roll of the adhesive label supply strip 1 is loaded, and a peeling unit for peeling the release paper 2 of the adhesive label supply strip 1 sent from the roll. And release paper collecting units 52, 53, and 54 for winding and collecting the release paper 2 from which the adhesive label 3 has been peeled off by the peeling unit. The release paper collecting unit 53 that collects the left area 2L of the release paper 2 and the release paper collection unit 54 that collects the right area 2R of the release paper 2 are separate units. Are also illustrated.
The peeling unit has a peeling plate 4. The peeling plate 4 has a smooth surface whose tip is slightly bent downward. Further, the peeling plate 4 includes a first peeling portion 41 for peeling the intermediate area 2M of the release paper 2 from the adhesive label 3 in the longitudinal direction, and the release paper 2 after peeling the intermediate area 2M of the release paper 2. It has the 2nd peeling part 42 for peeling the left-right area | region 2L, 2R from the adhesive label 3 in a longitudinal direction, respectively.

Specifically, as shown in FIGS. 7 and 8, the peeling plate 4 is formed of a plate-like body having a smooth surface, and the intermediate area 4M in the width direction is cut into a concave shape, whereby the intermediate area 4M is formed. Is formed shorter than the left and right sections 4L and 4R in the width direction. The leading end of the intermediate section 4M of the peeling plate 4 and the leading ends of the left and right sections 4L and 4R are each bent slightly downward. The tip of the intermediate section 4M of the peeling plate 4 corresponds to the first peeling part 41, and the tip of the left and right sections 4L and 4R of the peeling plate 4 corresponds to the second peeling part 42. The bending angle of each tip is an obtuse angle with respect to the lower surface of the plate-like body, and is preferably 120 to 160 degrees. The leading edge 4Ma of the intermediate section 4M of the peeling plate 4 and the leading edges 4La, 4Ra of the left and right sections 4L, 4R are linear and extend in a direction substantially perpendicular to the longitudinal direction of the release paper 2. Since the intermediate area 4M of the peeling plate 4 is shorter than the left and right areas 4L and 4R, as shown in FIG. 8, the leading edge 4Ma of the intermediate area 4M is located behind the leading edges 4La and 4Ra of the left and right areas 4L and 4R. is doing.
The width of the peeling plate 4 (the sum of the width of the intermediate section 4M and the widths of the left and right sections 4L and 4R) is larger than the width of the adhesive label supply strip 1 or substantially the same as the width of the adhesive label supply strip 1 Preferably they are the same.
The width of the intermediate area 4M of the release plate 4 is slightly larger than the width of the intermediate area 2M of the release paper 2 or substantially the same as the width of the intermediate area 2M of the release paper 2. Preferably, the width of the intermediate section 4M of the release plate 4 is slightly larger than the width of the intermediate area 2M of the release paper 2. Thus, the intermediate area 4M is formed to have a slightly larger width, so that the intermediate area 2M of the release paper 2 is reversed at the leading edge 4Ma of the intermediate area 4M of the peeling plate 4 (the edge of the first peeling portion 41). The right and left side edges of the intermediate area 2M of the release paper 2 can be prevented from coming into contact with the inner edges of the left and right sections 4L and 4R of the release plate 4. Specifically, the width of the intermediate area 4M of the release plate 4 is preferably +1 mm to 2 mm of the width of the intermediate area 2M of the release paper 2.

The label sticking device 6 is a device for receiving the peeled adhesive label 3 from the label supply device 5 and sticking the adhesive label 3 to the surface of the adherend A.
As shown in FIG. 4, the label sticking device 6 is adhered to the adherend transport unit 61 that transports the adherend A supplied from the adherend supply device 7 to the label sticking position, and the label sticking position. And a pressing portion 62 that presses the label 3 toward the adherend A.
The adherend transport unit 61 includes a cylindrical rotating drum 611 that rotates in one direction, and a recess 612 that holds the adherend A at a predetermined interval in the circumferential direction on the outer peripheral surface of the rotating drum 611. A plurality of are formed. The adherend A is supplied from the adherend supply device 7 to the recesses 612, and the adherend A held in the recesses 612 is conveyed to the label attaching position according to the rotation of the rotary drum 611. When the adherend A is cylindrical, the adherend A may be held in the recess 612 so that it can rotate.
The pressing part 62 is composed of, for example, a pressing roller that presses the adhesive label 3 toward the adherend A.

The adherend supply apparatus 7 is an apparatus for supplying the adherend A to which the adhesive label is not attached to the adherend transport unit 61 of the label attaching apparatus 6.
As shown in FIG. 4, the adherend supply device 7 is provided on the upstream side of the adherend transport unit 61 and passes the adherend A to which the adhesive label is not attached to the recess 612 of the adherend transport unit 61. A star-shaped rotating drum 71 and a conveying means 72 for supplying the adherend A to the star-shaped rotating drum 71 are provided.
On the other hand, the adherend delivery device 8 is a device for transporting the adherend A to which the adhesive label has been attached.
The adherend delivery device 8 is provided on the downstream side of the adherend transport unit 61 and receives the adherend A to which the adhesive label is attached from the concave portion 612 of the adherend transport unit 61. After the adherend A is received from the star-shaped rotating drum 81, the conveying means 82 conveys the adherend A to the next step.

The labeler 10 operates as follows.
The adherend A is supplied from the adherend supply device 7 to the adherend transport unit 61 of the label sticking device 6.
The adherend transport unit 61 transports the adherend A to the label attaching position.

  On the other hand, in the label supply device 5, the adhesive label supply strip 1 is pulled out from the roll set in the roll setting unit 51. As shown in FIG. 4 to FIG. 6, the adhesive label supply strip 1 is in contact with the front surface of the release plate 4 while the back surface of the adhesive label supply strip 1 (release paper 2) is in contact with the surface of the release plate 4. It is sent in the direction (feeding direction X of the strip 1 for supplying the adhesive label). Then, the intermediate region 2M of the release paper 2 is inverted to the lower side of the release plate 4 at the leading edge 4Ma (the edge of the first release portion 41) of the intermediate area 4M of the release plate 4. That is, the intermediate area 2M of the release paper 2 is changed in the direction opposite to the sending direction X. The intermediate area 2M of the release paper 2 that has been reversed in the first peeling unit 41 is wound up and recovered by the release paper recovery unit 52. Thereby, the intermediate region 2M of the release paper 2 is peeled in the longitudinal direction, and the back surface of the intermediate portion of the adhesive label 3 is exposed. Since two cleavage lines 21 and 22 are formed in the surface of the release paper 2, the release paper 2 is divided along this, and the intermediate region 2 </ b> M of the release paper 2 can be reliably peeled off.

Subsequently, the left and right regions 2L and 2R of the release paper 2 are inverted to the lower side of the release plate 4 at the leading edges 4La and 4Ra (the edges of the second release portion 42) of the left and right areas 4L and 4R of the release plate 4. That is, the left and right areas 2L and 2R of the release paper 2 are changed in directions opposite to the sending direction. The left and right areas 2L and 2R of the release paper 2 peeled off at the second peeling portion 42 are also wound and collected by the release paper collection units 53 and 54, respectively. Thereby, the left and right areas 2L and 2R of the release paper 2 are peeled in the longitudinal direction. When the left and right areas 2L and 2R of the release paper 2 are peeled off, the exposed back surface of the pressure-sensitive adhesive label 3 reaches the label attaching position almost simultaneously, and the back surface of the pressure-sensitive adhesive label 3 moves to the surface of the adherend A. Is done. Note that “substantially simultaneously when the left and right areas 2L and 2R of the release paper 2 are peeled off” means that the left and right areas 2L and 2R of the release paper 2 are not completely separated from the back surface of the adhesive label 3, respectively. This means that the front end portion of the pressure-sensitive adhesive label 3 starts to stick to the adherend A in the state where the left and right regions 2L and 2R of the release paper 2 are attached to the rear side of the left and right side ends. Thus, by making it substantially simultaneous, the shift | offset | difference of the sticking position with respect to the to-be-adhered body A of the adhesive label 3 can be prevented more reliably. However, the adhesive label 3 may be adhered to the surface of the adherend A after the left and right regions 2L and 2R of the release paper 2 are completely peeled from the back surface of the adhesive label 3.
The pressing part 62 presses the adhesive label 3 toward the surface of the adherend A, whereby the adhesive label 3 is attached to a predetermined position of the adherend A.
The adherend A to which the adhesive label 3 is attached is supplied from the adherend transport unit 61 to the adherend delivery device 8.

The reversal of the intermediate region 2M of the release paper 2 is performed so that the angle formed between the back surface of the intermediate region 2M of the release paper 2 before reversal and the back surface of the intermediate region 2M of the release paper 2 after reversal is an acute angle. It is preferable to change the direction of the intermediate region 2M, and the angle formed is more preferably 5 degrees to 60 degrees, and particularly preferably 10 degrees to 45 degrees. By changing the direction of the intermediate region 2M of the release paper 2 at such an angle, the intermediate region 2M can be easily peeled from the back surface of the adhesive label 3.
Further, the reversal of the left and right areas 2L and 2R of the release paper 2 is formed between the back surface of the left area 2L or the right area 2R of the release paper 2 before the reversal and the back face of the left area 2L or the right area 2R of the release paper 2 after the reversal. It is preferable to change the direction of the left and right regions 2L and 2R of the release paper 2 so that the corner is an acute angle, and the angle formed is more preferably 5 degrees to 60 degrees, and particularly preferably 10 degrees to 45 degrees. By changing the direction of the left and right areas 2L and 2R of the release paper 2 at such an angle, the adhesive label 3 does not follow the left and right areas 2L and 2R, and the left and right areas 2L and 2R are easily peeled from the back surface of the adhesive label 3. it can.

  As described above, the labeler and the adhesive label sticking method of the present invention peel the intermediate region 2M of the release paper 2 first. When the intermediate area 2M of the release paper 2 is peeled off, the left and right end portions of the adhesive label 3 are stuck on the left and right areas 2L and 2R of the release paper 2. For this reason, there is no possibility that the adhesive label 3 is reversed together with the intermediate region 2M of the release paper 2. Therefore, even if the adhesive label 3 that is relatively thin and weak is attached to the release paper 2, the intermediate region 2M of the release paper 2 remains at the leading edge of the adhesive label 3 (in the feeding direction of the adhesive label supply strip 1). It can be reliably rolled and peeled from the edge of the adhesive label 3 on the downstream side.

When the intermediate region 2M of the release paper 2 is peeled off from the adhesive label 3, the back surface of the intermediate portion including the leading edge of the adhesive label 3 is exposed. Since the boundary point between the leading edge of the pressure-sensitive adhesive label 3 and the left and right areas 2L and 2R of the release paper 2 is the separation start point, the left and right areas 2L and 2R of the release paper 2 are then reversed, The left and right regions 2L and 2R of the release paper 2 can be peeled off from the back surface of the adhesive label 3 without being inverted together with the regions 2L and 2R.
Therefore, only the release paper 2 can be reliably peeled from the adhesive label supply strip 1.
In the prior art, the release paper is divided into two parts and peeled. However, when the intermediate area 2M of the release paper 2 is first peeled as in the present application, the pasting areas of the adhesive labels 3 on the left and right areas 2L and 2R are the same as the prior art. It becomes small compared with each pasting area of the 2 division body. For this reason, in the present invention, when the left and right regions 2L and 2R of the release paper 2 are peeled off, even if a tension is applied to either one of the left and right regions 2L and 2R, the adhesive label 3 is left in the width direction. Or it becomes difficult to position-shift to either the right side. Therefore, the adhesive label 3 can be reliably attached to a predetermined position of the adherend A.

  The labeler and the adhesive label sticking method of the present invention are not limited to the above-described embodiment, and can be changed to various aspects. Hereinafter, other embodiments relating to the labeler and the method of attaching the pressure-sensitive adhesive label of the present invention will be described. Only different configurations and effects will be described using reference numerals and symbols.

In the said embodiment, although the adhesive label 3 supplied from the label supply apparatus 5 is directly affixed on the to-be-adhered body A, a label transfer part is provided in the label sticking apparatus 6, and this label transfer part is interposed. Then, the adhesive label 3 may be changed to an aspect in which the adhesive label 3 is attached to the adherend A. This embodiment is one embodiment in which the adhesive label 3 is adhered to the adherend A after the left and right regions 2L, 2R of the release paper 2 are completely peeled from the back surface of the adhesive label 3.
The label transfer unit is an apparatus for receiving the adhesive label 3 from the label supply device 5 and sticking it to a predetermined position of the adherend A.
FIG. 9 shows a schematic configuration diagram of a labeler having a label transition portion.
As with the above embodiment, the labeler 10 includes a label supply device 5 having a peeling unit (peeling plate 4), a label sticking device 6, an adherend supply device 7, an adherend delivery device 8, and The label sticking device 6 has a label transition part 9.
The label transfer unit 9 is composed of, for example, a cylindrical rotating drum having a function of sucking the adhesive label 3, and this rotating drum has an adhesive surface of the adhesive label 3 supplied from the label supply device 5 on its outer peripheral surface. It rotates while adsorbed toward the outside. As the rotating drum rotates, the pressure-sensitive adhesive surface of the pressure-sensitive adhesive label 3 adhering to the outer peripheral surface adheres to the surface of the adherend A transported by the adherend transport unit 61, whereby the pressure-sensitive adhesive label 3 adheres to the adherend. A is stuck at a predetermined position.
In the labeler 10, as described above, the pressure-sensitive adhesive label 3 is attracted to the outer peripheral surface of the rotating drum with the pressure-sensitive adhesive surface of the pressure-sensitive adhesive label 3 facing outward. For this reason, as shown in FIG. 9, the pressure-sensitive adhesive label supply strip 1 is sent from the lower side of the release plate 4 to the tip side while the release paper 2 is in contact with the surface of the release plate 4. Then, after the intermediate region 2M of the release paper 2 of the strip 1 for supplying the adhesive label is reversed and peeled upward from the release plate 4 at the first release portion 41 of the release plate 4, the left and right regions of the release paper 2 are separated. 2L and 2R are reversed to the upper side of the peeling plate 4 at the second peeling portion 42 of the peeling plate 4 and peeled off.

Further, in the above embodiment, when the left and right areas 2L and 2R of the release paper 2 are peeled off, the left and right areas 2L and 2R are respectively below the peeling plate 4 (in the case of the other embodiment in FIG. For example, the left and right regions 2L and 2R may be reversed in a direction of approximately 90 degrees with respect to the delivery direction.
As the peeling plate 4 used for reversing the left and right regions 2L and 2R in such a direction, a structure as shown in FIG. In this peeling plate 4, the leading edges 4 La and 4 Ra (the edges of the second peeling portion 42) of the left and right areas 4 L and 4 R of the peeling plate 4 are straight in a direction approximately 45 degrees with the feeding direction of the adhesive label supply strip 1. The left and right sections 4L and 4R of the peeling plate 4 are the same as in the above embodiment except that they are flat and not curved.

  Moreover, in the said embodiment, although the strip | belt-shaped body 1 for adhesive label supply in which the at least 2 cleavage line 21 and 22 was formed in the surface of the release paper 2 is used, this cleavage line 21 and 22 are formed. It is also possible to use a non-adhesive label supplying strip 1. However, when the cleavage lines 21 and 22 are not formed, a base material having tearability in the longitudinal direction is used as the base material of the release paper 2. If the release paper 2 having tearing properties is used, the intermediate region 2M of the release paper 2 can be peeled in a strip shape and in the longitudinal direction even if the tear lines 21 and 22 are not provided. The release paper 2 on which no cleavage line is formed is separated in the same manner as in the above embodiment by tearing in the longitudinal direction at the same position as the position where the cleavage lines 21 and 22 in the above embodiment are formed. The intermediate region 2M of the pattern paper 2 can be peeled off.

  The sticking method of the adhesive label 3 and the labeler 10 of the present invention can be used when sticking the adhesive label 3 on the surface of various adherends A such as beverage containers.

  DESCRIPTION OF SYMBOLS 1 ... Adhesive label supply strip, 2 ... Release paper, 2M ... Release paper middle area, 2L ... Release paper left area, 2R ... Release paper right area, 3 ... Adhesive label, 4 ... Peeling unit (Peeling plate) , 41 ... 1st peeling part, 42 ... 2nd peeling part, 5 ... Label supply apparatus, 6 ... Label sticking apparatus, 7 ... Adhering body supply apparatus, 8 ... Adhering body delivery apparatus, 9 ... Label transfer part 10 ... Labeler, A ... Adherent

Claims (3)

The adhesive label is peeled off from the release paper of the adhesive label supply belt-like body in which a plurality of adhesive labels are pasted in the longitudinal direction on the strip-shaped release paper, and the adhesive labels are sequentially attached to the adherend. In the method of attaching adhesive labels
By reversing the intermediate area in the width direction of the release paper other than the left and right areas in the width direction of the release paper, the left and right end portions of the adhesive label are stuck on the left and right areas of the release paper, respectively. Peeling the region from the adhesive label in the longitudinal direction;
After peeling off the intermediate area of the release paper, and after peeling off the left and right areas from the pressure-sensitive adhesive label at the same time or after peeling off, the step of sticking the pressure-sensitive adhesive label to the adherend,
A method for attaching an adhesive label, comprising:   Two release lines are formed at intervals in the width direction on the release paper of the adhesive label supply continuous body, and an intermediate region of the release paper is an area between the two release lines. The adhesion method of the adhesive label of Claim 1 currently performed. In the labeler having a peeling unit for peeling the adhesive label from the release paper of the adhesive label supply belt-like body in which a plurality of adhesive labels are stuck side by side in the longitudinal direction on the belt-like release paper,
The peeling unit reverses the width direction intermediate region of the release paper other than the width direction left and right regions of the release paper, and the left and right end portions of the adhesive label are stuck on the left and right regions of the release paper, respectively. A first peeling portion for peeling the middle region of the pattern paper from the adhesive label in the longitudinal direction;
A second peeling portion for peeling the left and right areas of the release paper from the adhesive label after peeling the intermediate area of the release paper;
A labeler comprising:

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