JP6012404B2 - Elastic body roller, method of transferring and sticking band member by elastic body roller - Google Patents

Description

    The present invention relates to an elastic roller, a belt-like member transfer method and affixing method using an elastic roller, and in particular, a platen roller, a nip roller, and other belts for transferring a label without a mount or a general label with a mount and other belt-like members. It is a roller, especially when transferring or affixing a label without a mount, and the adhesive layer or the adhesive is difficult to stick, and it is possible to prevent the label without a mount from being caught by an elastic roller or an elastic roller. The present invention relates to a method for transferring and sticking a belt-shaped member.

Conventionally, a non-mounting label has been developed that does not use a release paper (so-called backing) that is temporarily attached to the back side of the pressure-sensitive adhesive layer of the label. Has been.
FIG. 9 is a perspective view showing a state in which a conventional non-mounting label 1 is wound in a roll shape. The non-mounting label 1 is a label base material as shown in an enlarged cross section in FIG. 2, a pressure-sensitive adhesive layer 3 on the back surface side, a heat-sensitive color former layer 4 on the front surface side, and a transparent release agent layer 5 on the upper layer side.
A position detection mark 6 is printed in advance on the back side of the label substrate 2.
Moreover, fixed information (not shown), such as a label user's mark, name, and other designs, can be printed in advance on the surface side of the label substrate 2 as necessary.
This label 1 without mount can be made into a single-leaf label piece 1A by cutting at a predetermined pitch along the planned cutting line 7.

    FIG. 10 shows an outline of a thermal printer 8 that is loaded with the non-mounting label 1 and prints variable information such as price, barcode, and other product information about goods and management information about goods or services as needed. The thermal printer 8 includes a supply unit 9 for the label 1 without mount, a guide unit 10, a detection unit 11, a printing unit 12, and a cutting unit 13.

    The supply unit 9 holds the roll-less mountless label 1 and allows the mountless label 1 to be fed out in a strip shape in the direction of the guide unit 10, the detection unit 11, the printing unit 12, and the cutting unit 13.

    The guide unit 10 includes a guide roller 14 and can guide the fed unmounted label 1 toward the detection unit 11 and the printing unit 12.

    The detection unit 11 includes a position detection sensor 15, detects the position detection mark 6 on the back side of the label 1 without mount, and detects the relative position of the label 1 without label (label piece 1 A) with respect to the print unit 12. Make it possible.

    The printing unit 12 includes a thermal head 16 and a platen roller 17 (elastic roller). The label 1 without a mount is sandwiched between the thermal head 16 and a platen roller 17 with a predetermined printing pressure. The platen roller 17 is rotationally driven at a constant speed. By supplying print data to the thermosensitive color former layer 4, the predetermined variable information can be printed on the label 1 without label (label piece 1 </ b> A).

    The cutting unit 13 has a fixed blade 18 and a movable blade 19, cuts the printed non-mounting label 1 transferred between them at the portion of the predetermined cutting line 7 with a predetermined pitch, and issues a label piece 1A. To do.

In the thermal printer 8 having such a configuration, a roller made of an elastic material such as a rubber material is used as the platen roller 17 for transferring and printing the label 1 without the mount, but the adhesive of the adhesive layer 3 is attached. In order to make it difficult to form, the platen roller 17 is made of a silicone rubber material to which an adhesive is difficult to adhere, or silicone oil or the like is applied to the outer peripheral surface of the platen roller 17.
However, in long-term use, it is difficult to completely prevent the adhesion of the adhesive, and the non-mounting label 1 that has passed through the platen roller 17 is stuck on the platen roller 17 as it is (see FIG. 10 (see the phantom line)), there is a problem that the label is clogged, and the normal transfer of the label 1 without the mount, the printing, and the issuance of the label piece 1A are hindered.
Further, when the printing issue is stopped while the label 1 without the mount is sandwiched between the thermal head 16 and the platen roller 17, the label 1 without the mount is difficult to peel off from the surface of the platen roller 17. Thus, similarly to the above, there is a problem that the mountless label 1 is likely to be caught.

Therefore, in general, it is necessary to repeat maintenance such as the operation of cleaning the outer peripheral surface of the platen roller 17 or the replacement operation of the platen roller 17, and the platen roller 17 (which enables stable transfer and printing over a long period of time). An elastic roller) is demanded.
In addition to the platen roller 17, a label 1 without a mount, such as a nip roller (not shown) composed of a pair of rollers that are rotationally driven for transferring the label 1 without a mount according to the configuration of the printer, and a guide roller 14. There is also a demand for an elastic roller for a label that is non-adhesive or excellent in releasability (releasing properties) as a roller for simply guiding the image.

Further, there is a demand for an elastic roller for a label that can be stably transported regardless of whether the label 1 without mount or the label with general mount is loaded.
In order to reduce the contact area with the label 1 without adhesive (adhesive layer 3) and avoid the sticking phenomenon due to the adhesive layer 3, it is also attempted to form a groove or the like on the outer surface of the platen roller 17. However, when transporting and printing a general label with a mount, the necessary contact force with the back of the mount is insufficient because of the insufficient contact area of the label with the back of the mount. However, there is a problem that the transfer function is likely to be hindered such as occurrence of label slip and stable transfer and printing operations cannot be expected.

    Similarly to the above-mentioned label 1 without mount, for example, in a coater or a printing machine, when transporting or guiding a paper or film-based belt-like member having an adhesive layer or an adhesive layer on the back side, as described above There are concerns about the occurrence of various problems, and an elastic roller excellent in non-adhesiveness or releasability (releasability) has been demanded.

Further, when the label 1 without the mount is mechanically attached to an arbitrary adherend, for example, a lid of a cardboard box, or when the label is peeled off from the mount of a general label with a mount, and the peeled label is attached, An elastic roller similar to that described above may be used as an affixing roller for pressing the non-mounting label 1 or the peeled label.
In the case of such a usage pattern, the pressure-sensitive adhesive layer 3 is pressed from the surface side opposite to the pressure-sensitive adhesive layer 3 by an adhesive roller (elastic body roller). As a result of the adhesive sticking out around the label 1 without the mount or the peeled label and coming into contact with the sticking roller, the surface of the label 1 without the mount or the peeled label sticks to the sticking roller as described above, and the label winding There is a problem that a phenomenon occurs that disturbs a stable pasting operation.

JP 2011-31426 A

    The present invention has been considered in view of the above problems, and is a platen roller or other elastic roller excellent in non-adhesiveness or releasability (releasability), a method for transferring a belt-like member using an elastic roller, and affixing. It is an object to provide a method.

    In addition, the present invention provides an elastic roller that can act to positively peel the adhesive layer of a non-mounting label or other band-like member on the surface, and the band-like member made of an elastic roller. It is an object to provide a transfer method and a pasting method.

    The present invention also provides an elastic roller capable of stably transporting, guiding, and affixing a general label with a mount and a strip-like member other than a label without a mount, and a belt-like member made of an elastic roller. It is an object to provide a transfer method and a pasting method.

    In addition, the present invention provides an elastic material that exhibits peelability and frictional force (grip force) for a strip-like member such as a label without a mount and a general label with a mount, and can stably transport and guide both of them. It is an object of the present invention to provide a method for transferring and affixing a belt-shaped member using a body roller and an elastic roller.

    That is, the present invention provides a two-layer structure for an elastic body roller such as a platen roller, imparts an uneven shape to the elastic body on the inner layer side, and forms a plurality of slits orthogonal to the axial direction thereof. The first invention has a roller shaft and an elastic material attached around the roller shaft, and an elastic body for transferring the belt-shaped member in contact with the elastic material A roller, wherein the elastic material has an inner layer side elastic material provided on the outer periphery of the roller shaft, and an outer layer side elastic material provided on the outer periphery of the inner layer side elastic material to contact the belt-shaped member, The inner layer side elastic material has an uneven outer periphery, and a plurality of threads perpendicular to the axial direction of the roller shaft from the outer layer side elastic material to the inner layer side elastic material. The Tsu bets an elastic body rollers, characterized in that it is formed along the axial direction of the roller shaft.

    2nd invention makes a strip | belt-shaped member contact in the state which applied the pressing force to the elastic body roller which has a roller shaft and the elastic material attached to the circumference | surroundings of this roller shaft, and rotates this elastic body roller The belt-like member is transferred by an elastic roller for transferring the belt-like member, and the elastic material is provided on the outer circumference of the roller shaft and on the outer circumference of the inner-layer side elastic material. An outer layer-side elastic material that contacts the belt-shaped member, and the inner layer-side elastic material has an uneven outer periphery, and extends from the outer layer-side elastic material to the inner-layer-side elastic material, and the shaft of the roller shaft. A plurality of independent unit elastic portions are formed by cutting a plurality of slits orthogonal to the direction along the axial direction of the roller shaft. When the elastic roller is rotated with the pressing force applied to the member, the belt-like member is transferred from the elastic roller while being peeled off from the elastic roller by the repulsive force from the plurality of unit elastic portions to the belt-like member. This is a method for transferring a belt-shaped member using an elastic roller.

    In a third aspect of the invention, a belt-like member is brought into contact with an elastic roller having a roller shaft and an elastic material attached around the roller shaft while a pressing force is applied, and the elastic roller is rotated. Is a method of attaching a belt-like member with an elastic roller for attaching the belt-like member to an adherend, wherein the elastic material comprises an inner layer side elastic material provided on the outer periphery of the roller shaft, and the inner layer side elastic material. An outer layer-side elastic material that is provided on the outer periphery of the outer layer-side member and is in contact with the belt-like member, and the inner layer-side elastic material has an outer periphery having an uneven shape, and extends from the outer-layer-side elastic material to the inner-layer-side elastic material. By forming a plurality of slits perpendicular to the axial direction of the roller shaft along the axial direction of the roller shaft, a plurality of independent unit elastic parts are formed. The elastic member is rotated by rotating the elastic roller while the pressing force is applied to the belt-like member, and the elastic member is moved by the repulsive force from the plurality of unit elastic portions to the belt-like member. The strip-like member is stuck to the adherend by peeling off the strip, and the strip-like member is stuck by an elastic roller.

    The inner layer side elastic material has a rubber hardness (hereinafter referred to as “A hardness”) according to durometer type A defined in JIS K6253 standard, which is lower than the A hardness of the outer layer side elastic material.

    It is desirable that the inner layer side elastic material has an A hardness of 10 to 30 degrees, and the outer layer side elastic material has an A hardness of 30 to 80 degrees.

    The uneven shape of the inner layer side elastic material may have a shape in which the radial cross section of the roller shaft is different from the radial cross section of the outer layer side elastic body.

    The concavo-convex shape of the inner layer side elastic material may have a shape in which the radial cross section of the roller shaft is the same as the radial cross section of the outer layer side elastic body.

    The uneven shape of the inner layer side elastic material may have a shape in which a radial cross section at a certain position along the axial direction of the roller shaft is different from a radial cross section at another position.

    The concavo-convex shape of the inner layer-side elastic material may have a shape in which a radial cross section at a certain position along the axial direction of the roller shaft has the same shape as a radial cross section at another position.

    The concavo-convex shape of the inner layer side elastic material may have an outer shape in which an axial section of the roller shaft is parallel to the axis of the roller shaft.

    The concavo-convex shape of the inner layer side elastic material may have an outer shape line in which an axial section of the roller shaft is not parallel to the axis of the roller shaft.

    In the concave-convex shape of the inner layer side elastic material, the axial cross section of the roller shaft may have a curved outline.

    In the concave-convex shape of the inner layer side elastic material, the axial cross section of the roller shaft may have a contour line by a combination of straight lines and curves.

    The concavo-convex shape of the inner layer side elastic material has a shape in which an axial cross section at an angle around the rotation axis is different from an axial cross section at another angle due to a plane including the rotation axis of the roller shaft. Can do.

    The concavo-convex shape of the inner layer side elastic member has a shape in which an axial cross section at an angle around the rotation axis is the same as an axial cross section at another angle by a plane including the rotation axis of the roller shaft. be able to.

    The concavo-convex shape of the inner layer side elastic material can make the diameter of the inner layer side elastic material variable in the radial cross section of the roller shaft.

    The concavo-convex shape of the inner layer side elastic material can change the diameter of the inner layer side elastic material in the axial cross section of the roller shaft.

    The concavo-convex shape of the inner layer-side elastic material may have a star shape in cross section along the radial direction of the roller shaft.

    The slit can divide the elastic material into a plurality of unit elastic portions that can be displaced independently of each other.

    In the slit, the ratio D: W between the slit depth D inward from the outer surface of the elastic material and the slit interval W between the adjacent slits is 6: 1 to 1: 3. Is desirable.

    As for the said slit, it is desirable for the slit space | interval of the said adjacent slits to be 0.50-1.00 mm.

    The slit depth of the slit is preferably 1.00 to 3.00 mm from the outer surface of the elastic material inward.

    The inner layer side elastic material and the outer layer side elastic material can be made of a thermoplastic elastic material.

    The inner layer side elastic material and the outer layer side elastic material can be formed of the same series of thermosetting elastic materials.

    Furthermore, in the present invention, the uneven shape of the inner layer side elastic material may be a shape different from the shape (columnar shape) of the outer layer side elastic material, and the radial cross section of the roller shaft is irregular. It is not limited by having a shape or a regular shape, and the radial cross section of the roller shaft is not limited by having a regular shape or an irregular shape.

Furthermore, the slit may be cut to a part of the inner layer side elastic material through the outer layer side elastic material, and passes through the inner layer side elastic material from the outer layer side elastic material to the roller shaft at the deepest. It can be set as the structure cut | disconnected to the depth just before reaching.
In addition, the slit can be configured such that the slit interval between adjacent slits is uniform or non-uniform along the axial direction of the roller shaft, and is directed inward from the outer surface of the elastic material. The slit depth can be non-uniform or uniform.

    In the elastic roller according to the present invention, the belt-shaped member transfer method and the affixing method by the elastic roller adopt a two-layer structure of the inner layer side elastic material and the outer layer side elastic material, and the inner layer side elastic material is formed with an uneven shape. In addition, since a plurality of slits perpendicular to the axial direction of the roller shaft are formed, even if a predetermined printing pressure or a pressure for transferring or sticking acts on the elastic roller, the adhesive of the band-like member such as a label without a mount is applied. Along with the rotation of the elastic roller that rotates while contacting the agent layer, the stress generated in the inner layer side elastic material and the outer layer side elastic material becomes non-uniform, and the restoring force is different in each part of the elastic roller. It acts to forcibly peel the strip-shaped member such as the label without mount from the elastic roller, and paste the label without mount and other strip-shaped members on the surface of the elastic roller. And entrainment can be prevented.

    According to the elastic roller of the first invention, even if the adhesive layer of a strip-like member such as a label without mount comes into contact with the outer peripheral surface of the elastic roller due to the two-layer structure of the elastic body and the formation of the slit, the elastic body As the belt rotates, the strip-like member such as the label without mount is moved away from the elastic roller, so that the strip-like member such as the label without mount becomes stuck around the outer peripheral surface of the elastic roller. , And stable transfer, sticking and printing functions can be maintained over a long period of time.

    According to the method for transferring the belt-like member by the elastic roller according to the second invention, a plurality of slits cut into the outer-layer-side elastic material and the inner-layer-side elastic material having a two-layer structure are provided in the elastic roller. The unit elastic part is formed, and by rotating the elastic roller in a state where a pressing force is applied to the belt-like member such as a label without a mount, each repulsive force against the belt-like member from the plurality of unit elastic parts, Since the pressure-sensitive adhesive layer of the belt-shaped member is transferred while being peeled off from the elastic roller, the belt-shaped portion sticks to the elastic roller on the downstream side from the contact portion with the elastic roller so that the transfer is hindered. Stable transfer can be performed while preventing.

    According to the method for sticking the belt-shaped member with the elastic roller according to the third invention, the elastic roller has a plurality of slits cut into the outer-layer-side elastic material and the inner-layer-side elastic material having a two-layer structure. The unit elastic part is formed, and by rotating the elastic roller in a state where a pressing force is applied to the belt-like member such as a label without a mount, each repulsive force against the belt-like member from the plurality of unit elastic parts, Since the belt-like member is pressed against the adherend while peeling the adhesive layer of the belt-like member from the elastic roller, the belt-like portion is attached to the elastic roller on the downstream side from the contact portion with the elastic roller. Stable pasting operation can be performed while preventing the pasting from occurring.

It is a perspective view of the elastic body roller (platen roller 20) by the 1st example of the present invention. 2 is a side view of the platen roller 20. It is the III-III sectional view taken on the line of FIG. FIG. 10 is an enlarged sectional view in the axial direction of a roller shaft 21 in a state where the label 1 without mount is sandwiched between the thermal head 16 and the platen roller 20 in the thermal printer 8 (FIG. 10). 3 is an enlarged sectional view of the roller shaft 21 in the radial direction. It is a perspective view of the elastic body roller (platen roller 30) by the 2nd Example of this invention. It is a perspective view of the elastic body roller (platen roller 40) by the 3rd Example of this invention. It is a top view of the elastic body roller (platen roller 50) by the 4th example of the present invention. It is a perspective view of the state which wound the conventional label 1 without the mount in roll shape. FIG. 5 is a schematic side view of a thermal printer 8 that is loaded with a label 1 without a mount and prints variable information such as prices, barcodes, and other product information about products and management information about goods or services as needed. is there.

    The present invention has a two-layer structure of an inner layer side elastic material and an outer layer side elastic material, and the inner layer side elastic material is formed with an uneven shape, and further, a plurality of slits perpendicular to the axial direction of the roller shaft are formed. The inner layer side elastic material and the outer layer side elastic material divided by the above do not bend to the same shape due to the pressure between the belt-like member such as a label without a mount and do not return at the same timing when returning to the original shape. As a result of extruding a strip-like member such as a label without a mount on each part, the non-adhesiveness, releasability or peelability is improved, and the strip-like member such as a label without a mount is stably transferred over a long period of time. The elastic roller which can be affixed, the transfer method of a strip | belt-shaped member by an elastic body roller, and the affixing method were implement | achieved.

Next, the elastic roller according to the first embodiment of the present invention, the method for transferring and affixing the belt-shaped member using the elastic roller, and the platen roller 20 (label) in the thermal printer 8 as well as the platen roller 17 (FIG. 10). An example of the case of an elastic body roller will be described with reference to FIGS. However, the same parts as those in FIGS. 9 and 10 are denoted by the same reference numerals, and detailed description thereof will be omitted.
1 is a perspective view of a platen roller 20 (an elastic roller for labels), FIG. 2 is a side view of the platen roller 20, and FIG. 3 is a cross-sectional view taken along line III-III in FIG.
The platen roller 20 includes a roller shaft 21 and an elastic material 22 that is attached to the periphery of the roller shaft 21 and can be rotated integrally with the roller shaft 21, and a label (for example, the above-described label 1 without mount, FIG. 9) is brought into contact and transferred.

    The elastic member 22 includes an inner layer side elastic member 23 provided on the outer periphery of the roller shaft 21 and an outer layer side elastic member 24 provided integrally with the outer periphery of the inner layer side elastic member 23 and in contact with the mountless label 1. .

As shown in the drawing, the outer circumference of the inner layer side elastic member 23 has an uneven shape.
That is, the uneven shape of the inner layer side elastic member 23 is an irregular cross-sectional shape in the radial direction of the roller shaft 21 (however, in the illustrated example, a regular cross-sectional shape in the axial direction of the roller shaft 21). The concavo-convex shape of the inner layer side elastic member 23 is such that the diameter of the inner layer side elastic member 23 is variable in the radial cross section of the roller shaft 21.
More specifically, the concavo-convex shape of the inner layer side elastic member 23 is a star shape in the cross-sectional shape along the radial direction of the roller shaft 21, and this cross-sectional shape is the same at any axial position of the roller shaft 21. It is a star shape. In the illustrated example, this star shape has eight peak portions 23A and eight valley portions 23B located between the peak portions 23A. In addition, the star shape is a shape in which the brightness of the star is designed and may be any shape as long as it has a projecting portion whose base is a polygon and is bulged.

Further, a plurality of slits 25 (shown by dotted lines in FIG. 2) around the circumference in the direction perpendicular to the axial direction of the roller shaft 21 from the outer layer side elastic material 24 to the inner layer side elastic material 23. The elastic material 22 is divided into a plurality of unit elastic portions 22A, 22B, 22C,... That can be displaced independently of each other (FIG. 4).
In the illustrated example, the slits 25 have a uniform slit interval W (FIG. 3) between adjacent slits 25 along the axial direction of the roller shaft 21.
For example, the slit 25 has a slit interval W of 0.50 to 1.00 mm.
Of course, the slit 25 can also make the slit interval W of the adjacent slits 25 non-uniform along the axial direction of the roller shaft 21.
If the slit interval W exceeds 1.00 mm, the unit elastic portions 22A, 22B, 22C,... Are less likely to cause independent displacement as will be described later with reference to FIGS. The peeling effect of the platen roller 20 with respect to 1 decreases.
When the slit interval W is less than 0.50 mm, it becomes difficult to maintain the strength of the entire platen roller 20.

The slit 25 is cut to a part of the inner layer side elastic member 23 through the outer layer side elastic member 24. In the illustrated example, the slit 25 is cut to the peak portion 23A of the inner layer side elastic material 23 having a uniform depth in the elastic material 22 and does not reach the valley portion 23B. .
Depending on the material of the platen roller 20 or its diameter, the slit 25 has its slit depth D (FIG. 3) inward from the outer surface of the elastic material 22, for example, the diameter of the platen roller 20 as a whole. In the case of about 10 to 30 mm, it can be set to 1.00 to 3.00 mm.

Of course, the slit depth D is arbitrary, and the slit 25 can be cut from the outer layer side elastic material 24 through the inner layer side elastic material 23 to the depth immediately before reaching the roller shaft 21 at the deepest.
In addition, the slit depth D can be provided non-uniformly or uniformly for each slit 25 in the axial direction of the roller shaft 21.
Furthermore, also in the radial direction of the roller shaft 21, the slit depth D can be provided non-uniformly or can be made uniform.

The ratio D: W of the slit depth D to the slit interval W can be in the range of 6: 1 to 1: 3, and is preferably in the range of 3: 1 to 1: 2.
When the ratio D: W exceeds 6: 1, that is, even when the slits 25 are formed deeper and the interval between them is narrowed, the deep portions of the unit elastic portions 22A, 22B, 22C,. In this case, since the amount of deformation is small, it is impossible to improve the peeling effect, and the platen roller 20 is easily damaged.
On the other hand, when the ratio D: W is less than 1: 3, it is difficult to obtain a peeling effect due to the formation of the slit 25.

A hardness (rubber hardness according to durometer type A defined in JIS K6253 standard) of the inner layer side elastic material 23 is lower (softer) than the A hardness of the outer layer side elastic material 24, and the inner layer side elastic material 23 is on the outer layer side. It is necessary to be more elastically deformed than the elastic material 24.
That is, a stronger elastic repulsion force is generated in each unit elastic portion 22A, 22B, 22C,... Formed by the plurality of slits 25 with respect to the pressing force (printing pressure) from the thermal head 16. It is necessary to act so as to peel off the non-mounting label 1 which is transferred while being in contact with the platen roller 20 from the surface of the platen roller 20.
The inner layer side elastic member 23 and the outer layer side elastic member 24 which are the main constituent materials of the platen roller 20 can use a synthetic resin material having the A hardness in the following range.
For example, the inner layer side elastic material 23 has an A hardness of 10 to 30 degrees, preferably 20 to 30 degrees, and the outer layer side elastic material 24 has an A hardness of 30 to 80 degrees, preferably 50 to 60 degrees.
When the inner layer side elastic member 23 has an A hardness of less than 10 degrees, the inner layer side elastic member 23 becomes too soft and each unit elastic portion 22A, 22B, 22C,... Has a necessary elastic force or repulsive force. It is difficult to obtain, and if it exceeds 30 degrees, it becomes hard on the contrary, and the unit elastic portions 22A, 22B, 22C,.
When the hardness A of the outer layer side elastic member 24 is less than 30 degrees, the contact frictional force with the label 1 without the mount becomes excessive, which hinders the transfer function as the platen roller 20, and exceeds 80 degrees. It is difficult to transmit the repulsive force to the label 1 with no mount, and when the label with the mount is loaded, the contact friction force with the label with the mount is reduced, and the transfer and printing functions are deteriorated.

The inner layer side elastic member 23 and the outer layer side elastic member 24 can be formed of a thermoplastic elastic member.
Further, the inner layer side elastic member 23 and the outer layer side elastic member 24 can be made of a thermosetting elastic material such as silicone rubber of the same series.
Examples of the synthetic resin constituting the inner layer side elastic material 23 and the outer layer side elastic material 24 include polyethylene, polypropylene, polymethylpentene, polybutene, crystalline polybutadiene, polybutadiene, styrene butadiene resin, polyvinyl chloride, polyvinyl acetate, poly Vinylidene chloride, ethylene vinyl acetate copolymer, ethylene-propylene copolymer, ethylene-propylene-diene copolymer, ionomer, polymethyl methacrylate, polytetrafluoroethylene, ethylene polytetrafluoroethylene copolymer, polyacetal (polyoxyl Methylene), polyamide, polycarbonate, polyphenylene ether, polyethylene terephthalate, polybutylene terephthalate, polyarylate, polystyrene, polyethersulfone, polyi , Polyamideimide, polyphenylene sulfide, polyoxybenzoyl, polyetheretherketone, polyetherimide, polystyrene, polyurethane, polyester, 1,2-polybutadiene, phenol resin, urea resin, melamine resin, benzoguanamine resin, diallyl phthalate resin, alkyd Resins, epoxy resins, and silicon resins can be used.
Further, for example, thermosetting elastic materials such as thermosetting silicone rubber, one-component RTV (Room Temperature Vulcanizing) rubber, two-component RTV rubber, LTV (Low Temperature Vulcanizable) silicone rubber, and oil-resistant thermosetting rubber. Can be used.

The operation of transferring the above-mentioned mountless label 1 (FIG. 9) by the platen roller 20 having such a configuration will be described with reference to FIGS.
FIG. 4 is an enlarged sectional view in the axial direction of the roller shaft 21 in a state where the label 1 without the mount is sandwiched between the thermal head 16 and the platen roller 20 in the thermal printer 8 (FIG. 10), and FIG. FIG. However, in FIG. 4, the peak portion 23 </ b> A and the valley portion 23 </ b> B of the star-shaped inner layer-side elastic member 23 are shown separately on the same drawing.

    As shown in FIGS. 4 and 5, the label 1 without the mount is sandwiched between the thermal head 16 and the platen roller 20, and the adhesive layer 3 is pressed against the platen roller 20 with a predetermined printing pressure (pressing force). It will be in the same state as if it was pasted.

Since the platen roller 20 is formed with a plurality of slits 25, the unit elastic portions 22A, 22B, 22C, 22D, 22E that can be independently displaced and are divided by the respective slits 25 so as to be adjacent to each other. 22F (located on the right side in FIG. 4), and unit elastic portions 22G, 22H, 22I, 22J, 22K (located on the left side in FIG. 4),. . Each show an independent behavior.
That is, each unit elastic part 22A-22F, 22G-22K is comprised from the inner layer side elastic material 23 and the outer layer side elastic material 24, but since the volume of the inner layer side elastic material 23 is slightly different, respectively. The amount of elastic deformation is different and it does not bend to the same shape.
In addition, when the boardless label 1 that has been printed is separated from the thermal head 16, the bent unit elastic portions 22A to 22F and 22G to 22K are in contact with each other, so there is a slight difference in frictional force. When returning to the original shape, the unit elastic portions 22A to 22F and 22G to 22K do not return to the same state at exactly the same timing, but the unitless labels 1 are separated from each other based on their restoring forces. It pushes away from the roller 17.
The unit elastic portions 22G to 22K in which the slit 25 does not reach the inner layer side elastic member 23 are integrated with the adjacent unit elastic portions 22G to 22K at the base portion (inward side), but the end portions ( It is a separate body on the outer side), and although the repulsive force itself is reduced, it exerts a different restoring action while cooperating with each other, and similarly exerts a function of pushing the mountless label 1 away from the platen roller 17 .

Furthermore, since the inner layer side elastic member 23 has a star-shaped uneven shape, the single unit elastic portions 22A to 22F and 22G to 22K also have a state where they are separated from the thermal head 16 as the platen roller 20 rotates. The peeling function is ensured.
That is, as shown in FIGS. 4 and 5, the unit elastic portions 22A to 22F in which the volume of the inner layer side elastic member 23 having a relatively small A hardness is large and the unit elastic portions 22G to 22K in which the volume of the inner layer side elastic member 23 is small. Then, even if the pressing force received from the platen roller 20 is the same, when the platen roller 20 is rotated so as to transfer the label 1 without the mount, the unit elastic portions 22A to 22F are moved toward the unit elastic portions 22G to 22K. However, a relatively large repulsive force is generated.
The difference in the amount of restitution or restoration generated between the unit elastic portions 22A to 22F having a large volume of the inner layer side elastic member 23 and the unit elastic portions 22G to 22K having a small volume acts so that the label 1 without mount is easily peeled off, The label 1 without the backing paper does not stick to the platen roller 20.
Thus, each unit elastic part 22A, 22B, 22C, ..., 22G, ... 22K pushes back the non-mounting label 1 to improve the non-adhesiveness and peelability of the platen roller 20, and there is no mounting. The label 1 is not wound around while being stuck to the platen roller 20, or the traveling direction is bent and label clogging does not occur.

    Thus, when a printing medium having a multilayer structure such as a label 1 without mount or a label with mount is loaded into the thermal printer 8 for printing, the outer peripheral surface of the outer layer side elastic member 24 is a smooth curved surface, and the platen roller 20 is The print medium can be stably brought into contact with the entire surface of the thermal head 16, and a stable transfer printing operation can be ensured, and a stable function can be provided not only for the label 1 without the mount but also for the transfer of the label with the mount. Can be ensured.

4 and 5, the unit elastic portions 22A to 22F of the platen roller 20 are described as unit elastic portions having a large volume of the inner layer side elastic member 23, and the unit elastic portions 22G to 22K are described as unit elastic portions having a small volume. However, this is a state that occurs instantaneously while being pressed by the thermal head 16, and the size of the volume changes one after another as the platen roller 20 rotates.
For example, when the platen roller 20 in FIG. 5 rotates slightly counterclockwise from the illustrated state, the peak portion 23A of the inner layer side elastic member 23 is shifted to the downstream side in the transport direction of the non-mounting label 1; The outer layer side elastic material in which the volume of the inner layer side elastic material 23 in the unit elastic portions 22A to 22F and 22G to 22K becomes smaller at the contact portion with the thermal head 16 where the printing pressure is generated with respect to the label 1 without the mount. Thus, the elastic repulsive force as described above by the unit elastic portions 22A to 22F and 22G to 22K changes.
In other words, since the surface of each of the unit elastic portions 22A to 22F and 22G to 22K is finely pulsated from the contact portion with the non-mounting label 1 to the downstream side, the surface of the platen roller 20 is As a result of the non-mounting label 1 in the attached state being peeled off from the platen roller 20 autonomously and forcibly by a non-uniform peeling force acting in the transport direction and width direction, the label is jammed. Can be properly transported without generating any.

Next, the elastic roller according to the present invention, the method for transferring and affixing the belt-shaped member by the elastic roller, are not limited to the platen roller 20 described above (first embodiment, FIG. 1), but the inner layer side elastic material 23. The irregular shape may be an irregular cross-sectional shape in the axial direction of the roller shaft 21 (in the platen roller 20 according to the first embodiment, the irregular shape of the inner layer side elastic member 23 is the diameter of the roller shaft 21. In the direction, the roller component is irregular, for example, a star-shaped cross-sectional shape different from a general circular shape, but in the axial direction, it is a regular cross-sectional shape).
Alternatively, the concavo-convex shape of the inner layer-side elastic material 23 can change the diameter of the inner layer-side elastic material 23 in the axial section of the roller shaft 21.
Of course, the uneven shape of the inner layer side elastic member 23 can also be configured to have a regular cross-sectional shape in the radial direction of the roller shaft 21.
In short, the unit elastic portions 22A to 22F and 22G to 22K as described above based on FIG. 4 and FIG. 5 are independent from each other in the width direction and the transfer direction with respect to the non-mounting label 1 attached to the surface. What is necessary is just to employ | adopt the uneven | corrugated shape of the inner-layer side elastic material 23 which raise | generates a pulsating repulsive action apart.

For example, FIG. 6 is a perspective view of an elastic roller (a platen roller 30) according to a second embodiment of the present invention. The platen roller 30 includes an inner elastic member 32 and an outer elastic member 32. 33, and the convex and concave shapes of the inner layer side elastic member 32 are curved peak portions 32A and valley portions 32B so that the diameter of the inner layer side elastic member 32 is periodically variable in the axial direction of the roller shaft 21. The shape is like a skewered dumpling. In the radial cross section of the roller shaft 21, the diameter of the inner layer side elastic material 32 is constant.
Further, the inner layer side elastic member 32 and the outer layer side elastic member 33 in the elastic member 31 are provided with a plurality of units by cutting a plurality of slits 25 with the predetermined slit depth D and slit interval W as described above. The elastic portions 31A, 31B, 31C,.

Using the platen roller 30 having such a configuration, the label 1 without mount is sandwiched between the thermal head 16 in the thermal printer 8 (FIG. 10) at a predetermined printing pressure.
As the platen roller 30 rotates in the printing pressure load state, the inside of each of the unit elastic portions 31A, 31B, 31C,..., As in the case of the platen roller 20 (FIGS. 1 to 5) described above. Then, the elastic repulsive force of the inner layer side elastic member 32 is generated individually and independently, and the platen roller 30 itself pulsates its surface (the surface of the outer layer side elastic member 33) finely, so that the label 1 without the mount becomes the platen roller 30. The platen roller 30 is transported so as to be forcibly peeled from the surface, and the non-adhesiveness and peelability of the platen roller 30 can be ensured.

    However, in the case of this platen roller 30, unlike the case of the platen roller 20 described above, the inner layer side elasticity that generates an elastic repulsive force inside each of the unit elastic portions 31A, 31B, 31C,. The volume of the material 32 is variable in the axial direction of the roller shaft 21 and constant in the radial direction.

Next, FIG. 7 is a perspective view of an elastic roller (a platen roller 40) according to a third embodiment of the present invention. The platen roller 40 includes an elastic member 41, an inner layer side elastic member 42 and an outer layer side elastic member. 43, and the concavo-convex shape of the inner-layer-side elastic member 42 is a star shape in cross section along the radial direction of the roller shaft 21, and the star shape is twisted around the axial direction of the roller shaft 21. It is the shape which added.
That is, in the radial cross section and the axial cross section of the roller shaft 21, the crest portion 42 </ b> A and the trough portion 42 </ b> B are twisted around the axis of the roller shaft 21 so that the diameter of the inner layer side elastic member 32 is variable. In other words, it is a shape in which a thread is formed.
Further, the inner layer side elastic member 42 and the outer layer side elastic member 43 of the elastic member 41 are cut into a plurality of units by cutting a plurality of slits 25 with the predetermined slit depth D and slit interval W as described above. The elastic portions 41A, 41B, 41C,.

Using the platen roller 40 having such a configuration, the mountless label 1 is sandwiched between the thermal head 16 in the thermal printer 8 at a predetermined printing pressure.
With the rotation of the platen roller 40 in the printing pressure load state, each of the unit elastic portions 41A and 41B is similar to the case of the platen roller 20 (FIGS. 1 to 5) and the platen roller 30 (FIG. 6) described above. , 41C, ..., the elastic repulsive force of the inner layer side elastic member 42 is generated individually and independently, and the platen roller 30 itself pulsates its surface (the surface of the outer layer side elastic member 43) finely, The boardless label 1 is transported so as to be peeled off from the surface of the platen roller 40, and the non-adhesiveness and peelability of the platen roller 30 can be secured.

    However, in the case of the platen roller 40, unlike the case of the platen roller 20 (FIG. 1) and the platen roller 30 (FIG. 6), the unit elastic portions 41A, 41B, 41C,. The volume of the inner layer side elastic member 42 that generates an elastic repulsive force is variable in both the axial direction and the radial direction of the roller shaft 21.

FIG. 8 is a plan view of an elastic roller (a platen roller 50) according to a fourth embodiment of the present invention. The platen roller 50 includes an elastic material 51, an inner layer side elastic material 52 and an outer layer side elastic material. As the concave-convex shape of the inner-layer-side elastic member 52, a shape in which a plurality of warped protrusions 54 having a large or small shape or a predetermined shape or height are protruded from the cylindrical main body 52A with a predetermined density is adopted. . These warped protrusions 54 may form a predetermined row in the vertical, horizontal, diagonal, or other arbitrary direction on the surface of the cylindrical main body 52A, or may be irregular.
That is, the diameter of the inner layer side elastic member 52 is irregularly variable in the axial direction of the roller shaft 21, and the diameter of the inner layer side elastic member 52 is also irregularly variable in the radial section of the roller shaft 21. .
Further, in the inner layer side elastic member 52 and the outer layer side elastic member 53 in the elastic member 51, a plurality of slits 25 are cut to the warped protrusion 54 with the predetermined slit depth D and slit interval W as described above. The plurality of unit elastic portions 51A, 51B, 51C,.

Using the platen roller 50 having such a configuration, the mountless label 1 is sandwiched between the thermal head 16 in the thermal printer 8 (FIG. 10) at a predetermined printing pressure.
With the rotation of the platen roller 50 in the printing pressure load state, as in the case of the platen roller 20 (FIGS. 1 to 5), the platen roller 30 (FIG. 6) and the platen roller 40 (FIG. 7) described above, In each of the unit elastic portions 51A, 51B, 51C,..., The elastic repulsion force of the inner layer side elastic material 52 is generated individually and independently, and the platen roller 50 itself is the surface portion (outer layer side elastic material 53 Since the surface) is finely pulsated, the label 1 without the mount is transferred so as to be peeled off from the surface of the platen roller 50, and the non-adhesiveness and peelability of the platen roller 50 can be secured.

    However, in the case of the platen roller 50, unlike the case of the platen roller 20 described above, the inner layer side elasticity that generates an elastic repulsive force inside each of the unit elastic portions 51A, 51B, 51C,. The volume of the material 52 is variable in the axial direction and the radial direction of the roller shaft 21.

    The elastic roller according to the present invention is also non-adhesive when, for example, transporting or guiding a paper- or film-based belt-like member having an adhesive layer or an adhesive layer on the back side in a coater or a printing machine, or It can be used as a transfer roller excellent in releasability (release property).

Further, the elastic roller according to the present invention peels off the label 1 from the mount of the label with no mount, such as when the label 1 without the mount is mechanically pressed to an object to be pasted, for example, a lid of a cardboard box. Even when the peeled label is pressed and pasted, it can be used as a pasting roller.
That is, even if it is the label 1 without a mount, or a label with a mount, a label will be pressed from the surface side opposite to the adhesive layer 3 located in the back surface by using the elastic body roller by this invention as a sticking roller.
Due to the pressing action of the sticking roller (elastic body roller), the pressure-sensitive adhesive of the pressure-sensitive adhesive layer 3 gradually protrudes from the side surface or the front end surface and the rear end surface of the label 1 without mount or from the side to the front side. However, this pasting roller avoids the label entrainment phenomenon and performs a stable pasting operation without sticking the label 1 without mount or the label with mount to the pasting roller as in the case of the above-described embodiment. Is possible.

    The concave-convex shape of the inner layer-side elastic material in the present invention is not shown in the drawing, but in addition to the configuration described above, any shape that completely eliminates regularity in the radial direction or axial direction of the roller shaft, It is also possible to adopt any other shape based on a curved surface or a combination of flat surfaces. As a platen roller or other elastic body roller, its surface is pulsating or non-rotating with its rotation in the state where pressing force is applied. By changing to a rule, it is possible to impart a function of actively stripping a strip-like member such as a label without a mount from the roller surface.

1 Label without mount (Fig. 9)
DESCRIPTION OF SYMBOLS 1A Label piece of label 1 without mount 2 Label base material 3 Adhesive layer 4 Thermosensitive color-developer layer 5 Release agent layer 6 Position detection mark 7 Scheduled cutting line 8 Thermal printer (FIG. 10)
DESCRIPTION OF SYMBOLS 9 Supply part 10 Guide part 11 Detection part 12 Printing part 13 Cutting part 14 Guide roller (elastic body roller)
15 Position detection sensor 16 Thermal head 17 Platen roller (elastic body roller)
18 fixed blade 19 movable blade 20 platen roller (elastic body roller, first embodiment, FIG. 1)
21 Roller shaft 22 Elastic material 22A-22F, 22G-22K Unit elastic part (FIG. 4)
23 Inner layer side elastic material 23A Crest portion 23B of inner layer side elastic material 23 Valley 24 of inner layer side elastic material 23 Outer layer side elastic material 25 Slit 30 Platen roller (elastic roller, second embodiment, FIG. 6)
31 elastic members 31A, 31B, 31C,... Unit elastic part 32 inner layer side elastic member 32A peak part 32B of inner layer side elastic member 32 valley part 33 of inner layer side elastic member 32 outer layer side elastic member 40 platen roller (elastic roller) Third embodiment, FIG. 7)
41 elastic member 41A, 41B, 41C, ... unit elastic part 42 inner layer side elastic member 42A peak part 42B of inner layer side elastic member 42 valley part 43 of inner layer side elastic member 42 outer layer side elastic member 50 platen roller (elastic roller) Fourth embodiment, FIG. 8)
51 elastic members 51A, 51B, 51C,... Unit elastic part 52 inner layer side elastic member 52A cylindrical main body 53 of inner layer side elastic member 52 outer layer side elastic member 54 a plurality of warped projections W between adjacent slits 25 Slit spacing (Fig. 3)
D Slit depth of the slit 25 inward from the roller surface (Fig. 3)

Claims (23)

A roller shaft;
An elastic material attached around the roller shaft, and an elastic roller for transferring the elastic material in contact with the belt-shaped member,
The elastic material is
An inner layer side elastic material provided on the outer periphery of the roller shaft;
The outer layer side elastic material provided on the outer periphery of the inner layer side elastic material and in contact with the belt-shaped member, and
The inner layer side elastic material has an uneven shape on its outer periphery,
From the outer layer side elastic material to the inner layer side elastic material, a plurality of slits perpendicular to the axial direction of the roller shaft are formed along the axial direction of the roller shaft ,
The elastic roller characterized in that the inner layer side elastic material has a rubber hardness (hereinafter referred to as “A hardness”) according to durometer type A defined in JIS K6253 standard, which is lower than the A hardness of the outer layer side elastic material . A hardness of the inner layer side elastic material is 10 to 30 degrees,
A hardness of the outer layer elastic material, elastic roller according to claim 1, wherein 30 to 80 degrees. The uneven shape of the inner side elastic material, the radial cross section of the roller shaft, according to claim 1 or 2, characterized in that it has a radial cross-sectional shape different from the outer-side elastic member Elastic body roller. The uneven shape of the inner side elastic material, the radial cross section of the roller shaft, according to claim 1 or 2, characterized in that it has a radial cross-section the same shape of the outer side elastic member Elastic body roller. The uneven shape of the inner side elastic material, according to claim 1 in which the radial cross section at a certain position along the axial direction of the roller shaft, and having a radial cross-sectional shape different from the other position The elastic body roller in any one of 4 thru | or 4 . The concavo-convex shape of the inner layer-side elastic material has a radial cross section at a certain position along an axial direction of the roller shaft having the same shape as a radial cross section at another position. The elastic roller according to any one of 1 to 4 . The uneven shape of the inner side elastic member, the axial cross-section of the roller shaft, according to any one of the claims 1, characterized in that it has a parallel outline to the axis of the roller shaft 4 and 6 Elastic body roller.     The elasticity according to any one of claims 1 to 6, wherein the concave-convex shape of the inner layer side elastic member has an outer shape in which an axial section of the roller shaft is not parallel to the axis of the roller shaft. Body roller.     9. The elastic roller according to claim 1, wherein the concavo-convex shape of the inner layer side elastic material has an axial cross section of the roller shaft in an axial direction.     10. The structure according to claim 1, wherein the concave-convex shape of the inner layer-side elastic material has an outer shape line in which an axial section of the roller shaft is a combination of a straight line and a curved line. The elastic body roller according to crab.     The concavo-convex shape of the inner layer side elastic member has a shape in which an axial cross section at an angle around the rotation axis is different from an axial cross section at another angle due to a plane including the rotation axis of the roller shaft. The elastic roller according to claim 1, wherein     The concavo-convex shape of the inner layer side elastic member has a shape in which an axial cross section at an angle around the rotation axis is the same as an axial cross section at another angle due to a plane including the rotation axis of the roller shaft. The elastic roller according to any one of claims 1 to 10, wherein The elastic roller according to any one of claims 1 to 12 , wherein the concave-convex shape of the inner layer-side elastic material has a variable diameter of the inner layer-side elastic material in a radial cross section of the roller shaft. . The uneven shape of the inner side elastic member, said in axial cross-section of the roller shaft, according to any one of 6, 8 to claims 1, characterized in that it the diameter of the inner side elastic member is variable 13 Elastic body roller. The elastic body according to any one of claims 1 to 3, 5 to 14 , wherein the concave-convex shape of the inner layer-side elastic material has a star shape in cross section along the radial direction of the roller shaft. roller. The elastic roller according to any one of claims 1 to 15 , wherein the elastic member is divided into a plurality of unit elastic portions that can be displaced independently of each other by the slit. In the slit, the ratio D: W between the slit depth D inward from the outer surface of the elastic material and the slit interval W between the adjacent slits is 6: 1 to 1: 3. The elastic roller according to any one of claims 1 to 16 , wherein The elastic roller according to any one of claims 1 to 17 , wherein the slit has a slit interval of 0.50 to 1.00 mm between adjacent slits. The elastic roller according to any one of claims 1 to 18 , wherein the slit has a slit depth of 1.00 to 3.00 mm inward from the outer surface of the elastic material. . The inner layer-side elastic member and the outer layer elastic material, elastic roller according to any one of claims 1 to 19, characterized in that it was constructed from a thermoplastic elastomeric material. The elastic roller according to any one of claims 1 to 19 , wherein the inner layer side elastic material and the outer layer side elastic material are made of the same series of thermosetting elastic materials. A roller shaft;
An elastic member having an elastic material attached to the periphery of the roller shaft is brought into contact with the belt-like member in a state where a pressing force is applied thereto, and the elastic member for transferring the belt-like member by rotating the elastic roller. A method for transferring a belt-shaped member by a body roller,
The elastic material is
An inner layer side elastic material provided on the outer periphery of the roller shaft;
An outer layer side elastic material that is provided on the outer periphery of the inner layer side elastic material and contacts the belt-shaped member;
The rubber hardness (hereinafter referred to as “A hardness”) of the inner layer side elastic material according to the durometer type A defined in JIS K6253 standard is lower than the A hardness of the outer layer side elastic material,
The inner layer side elastic material has an uneven shape on its outer periphery,
By cutting a plurality of slits perpendicular to the axial direction of the roller shaft from the outer layer side elastic material to the inner layer side elastic material along the axial direction of the roller shaft, a plurality of unit elastic portions independent from each other are formed. Formed,
By rotating the elastic roller with the pressing force applied to the belt-like member, the belt-like member is peeled off from the elastic roller by the repulsive force against the belt-like member from the plurality of unit elastic portions. A belt-shaped member transfer method using an elastic roller, wherein A roller shaft;
A belt-like member is brought into contact with an elastic roller having an elastic material attached around the roller shaft in a state where a pressing force is applied, and the belt-like member is attached to an adherend by rotating the elastic roller. It is a method of attaching a band-shaped member with an elastic roller for attaching,
The elastic material is
An inner layer side elastic material provided on the outer periphery of the roller shaft;
An outer layer side elastic material that is provided on the outer periphery of the inner layer side elastic material and contacts the belt-shaped member;
The inner layer side elastic material has an uneven shape on its outer periphery,
By cutting a plurality of slits perpendicular to the axial direction of the roller shaft from the outer layer side elastic material to the inner layer side elastic material along the axial direction of the roller shaft, a plurality of unit elastic portions independent from each other are formed. Formed,
By rotating the elastic roller with the pressing force applied to the belt-like member, the belt-like member is peeled off from the elastic roller by the repulsive force against the belt-like member from the plurality of unit elastic portions. While sticking the said strip | belt-shaped member to the said to-be-adhered body, the sticking method of the strip | belt-shaped member by the elastic body roller characterized by the above-mentioned.

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