JP2006096390A - Cup-shaped container to whose bottom label or sheet is attached and method for attaching label or sheet to bottom - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cup-shaped container not only the side wall but also the bottom of which are covered, for increasing shading and gas barrier characteristics, integrally with a label or a sheet which, especially on the bottom, is formed with no hole and is wholly integrated with the outside of the bottom. <P>SOLUTION: The second label or a sheet 22 is attached to the bottom 11 surrounded by a bottom rim 12 by an adhesive agent layer 23 formed on its back. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a cup-shaped container that is integrally molded of a synthetic resin and contains food such as yogurt, coffee jelly, ice cream, etc. The present invention relates to a cup-like container to which a label or sheet is attached, and a method for attaching to the bottom surface of the label or sheet.

  Conventionally, an in-mold labeling container disclosed in Patent Document 1 is known as this type of cup-shaped container. This molded container is an in-mold molded additive-free polyethylene resin-molded container made of polyethylene resin, and the outermost wall surface and the outer bottom wall surface of the container are composed of the same inner layer and outermost layer, A label in which a resin film layer having at least strength and a barrier base material layer are laminated between the layers is closely adhered. This molded container has light-shielding properties and barrier properties against oxygen, water vapor, etc., and is filled and packed with milk and dairy products in the molded container so as to meet the hygiene standards of the ministerial ordinance concerning the component standards of milk and dairy products It is configured.

  However, in the in-mold labeling container of Patent Document 1, it is necessary to provide a vacuum suction device for tightly bonding the two labels for the side wall and the bottom surface at predetermined positions on the injection mold for manufacturing. As a result, the mold becomes complicated and expensive, leading to an increase in manufacturing cost.

  Further, when manufacturing this molded container, it is necessary to have a process of tightly bonding each of the two labels at a predetermined position in the mold in each mold clamping and mold opening process. In order to prevent the position of the attached label from shifting, it was necessary to significantly reduce the injection speed of the resin. For this reason, since the time interval required for one mold clamping and mold opening process becomes long, the work efficiency in the manufacturing operation is remarkably lowered, and the manufacturing cost is increased.

  In addition, the in-mold labeling molding container of Patent Document 1 is configured to inject synthetic resin through a gate port provided in a cavity mold for injection molding. It could not be tightly bonded to the bottom outer wall surface at the position facing the mouth. That is, in forming the cup-shaped container, as shown in FIG. 5, since the bottom label must be formed with a round hole or the like in the gate opening portion, the presence of the round hole makes the barrier property in the bottom label. However, the contents were easily oxidized (deteriorated) by permeation of oxygen or the like from the round holes in the bottom label.

  Therefore, the patent applicant has applied for the patent document 2 by paying attention to the problems existing in the prior art as described above. The object of the invention of the patent document 2 is the manufacturing process. The object of the present invention is to provide a food container configured so that the barrier function on the bottom surface can be easily enhanced while reducing the cost.

That is, as shown in FIG. 6, the invention described in Patent Document 2 is “made of synthetic resin formed in a bottomed cylindrical shape from a bottom wall and a side wall erected on the periphery of the bottom wall. A food container configured to impart a barrier function to the bottom surface of the container body, and after forming the container body, the bottom surface of the bottom wall of the container body It is a “food container” manufactured by welding a functional film exhibiting a function by heat sealing.
Japanese Patent Laid-Open No. 11-28741, summary, representative diagram Japanese Patent Laid-Open No. 2002-154592, abstract, representative figure, paragraph 0031

However, in the invention of Patent Document 2, as described in paragraph 0031 of the document,
When the functional film 13 is welded to the outer surface of the bottom wall 21 using the heat seal device 31, first, the container body 12 is turned upside down (the bottom wall 21 and the support legs 24 are positioned above). The functional film 13 is placed on the bottom wall 21 of the container body 12 (see a in FIG. 6).
At this time, when the functional film 13 is formed to be approximately the same size as the bottom wall 21, the peripheral edge of the bottom wall 21 is surrounded by the support legs 24, so that the position of the functional film 13 is It is not necessary to perform the alignment. The heated heat seal hot plate 33 is slowly moved down, and preferably the air between the functional film 13 and the bottom wall 21 is released while the heat seal layer of the functional film 13 is released. And the outer surface of the bottom wall 21 are thermally welded (see FIG. 6 b), the following points must be solved.

  That is, in the invention of Patent Document 2, since it is necessary to “heat-seal the heat seal layer of the functional film 13 and the outer surface of the bottom wall 21”, the “bottom wall 13” has an adverse effect due to heat, for example, the bottom wall. 13 deformation and whitening may occur.

  Moreover, in the container of this patent document 2, "while letting the air between the functional film 13 and the bottom wall 21 escape" "to heat-seal the heat seal layer of the functional film 13 and the outer surface of the bottom wall 21" Therefore, if the air escape between the functional film 13 and the bottom wall 21 is insufficient, the trapped air expands due to the heat applied at the time of welding, and the heat welding is insufficient. In addition, there is a possibility that the “functional film 13” may be damaged by the thermal expansion of air.

  Therefore, the inventors have conducted various studies on how to complete the integration without causing the label or seal to be damaged when the second label or sheet is integrated outside the bottom surface. As a result of overlapping, the present invention has been completed.

  That is, the object of the present invention is that the label or sheet for enhancing the light shielding property and gas barrier property is integrated not only on the side wall but also on the bottom surface. It is an object of the present invention to provide a cup-shaped container that is not open and is completely integrated outside the bottom surface, and a method for applying the label or sheet to the bottom surface.

In order to solve the above problems, first, the means taken by the invention according to claim 1 will be described with reference numerals used in the description of the best mode described below.
“A bottom surface 11, a side wall 13 rising from the periphery of the bottom surface 11, a thread tail 12 projecting downward from the periphery of the bottom surface 11, and a first label or sheet 21 integrated with the side wall 13 are integrally formed by injection molding. A cup-shaped container 10 comprising:
A cup-shaped container 10 characterized in that a second label or sheet 22 is attached to the bottom surface 11 surrounded by the thread tail 12 with an adhesive layer 23 formed on the back surface thereof.
It is.

  That is, the basic configuration of the cup-shaped container 10 according to the first aspect is substantially the same as that of the conventional cup-shaped container shown in FIGS. That is, the cup-shaped container 10 is integrally formed by synthetic resin injection molding as shown in FIG. 1 except for the second label or sheet 22 attached to the bottom surface 11. The side wall 13 rising from the periphery thereof, the thread tail 12 protruding downward from the periphery of the bottom surface 11, and the first label or sheet 21 integrated with the side wall 13 are provided.

  On the bottom surface 11 of the cup-shaped container 10 according to the present invention, as shown in FIG. 1 and FIG. 2, unlike the prior art shown in FIG. ing. That is, in forming the cup-shaped container 10, as shown in FIG. 1, it is almost unnecessary to form round holes or irregularities in the gate opening portion of the bottom surface 11.

  Further, the thread tail 12 constituting the cup-shaped container 10 stabilizes when the entire cup-shaped container 10 is placed on a desk, and the bottom surface 11 is in good contact with the surface of the desk. It is something to avoid. This thread tail 12 is formed by extending the lower end of the side wall 13 and not only prevents blocking when many of the cup-shaped containers 10 are stacked, but also the outer shape of the cup-shaped container 10 as a whole. Is to determine.

  The first label or sheet 21 integrated with the side wall 13 has light shielding properties and gas barrier properties, and is stored in the cavity for the side wall 13 when the side wall 13 is injection-molded. The synthetic resin is injected into the side wall 13 so as to be integrated with the side wall 13. Of course, the integration place of this 1st label or sheet | seat 21 has both the case of the inner side of the side wall 13, and the case of the outer side.

  And in the cup-shaped container 10 of this Claim 1, as shown in FIG.1 and FIG.2, the 2nd label or sheet | seat 22 was formed in the back surface on the bottom face 11 enclosed by the thread | yarn bottom 12, and the adhesive agent formed in the back surface. Affixed by layer 23.

  As with the first label or sheet 21, the second label or sheet 22 has a gas barrier property that prevents moisture and oxygen from entering the cup-shaped container 10, and a light shielding property that prevents ultraviolet light from entering. The adhesive layer 23 is attached to the outside of the bottom surface 11 by the adhesive layer 23 on the back surface. The adhesive layer 23 sticks to the surface of the synthetic resin at room temperature, and does not mean that the adhesive function cannot be exhibited unless heat sealing is performed, that is, heat is not applied.

  In addition, since the second label or sheet 22 is affixed to the bottom surface 11 without round holes or irregularities, the second label or sheet 22 not only has no irregularities on the surface, but is also affixed to the flat bottom surface 11 after being molded. Therefore, a round hole or the like for passing resin from the gate is not necessary. For this reason, the second label or sheet 22 can be printed not only on the entire surface but also on the printed characters and marks.

  Therefore, the cup-shaped container 10 according to claim 1 has a gas barrier property and a light shielding property by the first label or sheet 21 provided on the side wall 13 and the second label or sheet 22 affixed to the thread tail 12. In particular, since the second label or sheet 22 is flat and does not require a hole, its gas barrier property is sufficient, and the permeation of oxygen or the like is surely prevented. As a whole, the contents are hardly oxidized (deteriorated).

In order to solve the above-mentioned problem, the means taken by the invention according to claim 2 is similarly:
“A bottom surface 11, a side wall 13 rising from the periphery of the bottom surface 11, a thread tail 12 projecting downward from the periphery of the bottom surface 11, and a first label or sheet 21 integrated with the side wall 13 are integrally formed by injection molding. A method of attaching the second label or sheet 22 to the bottom surface 11 surrounded by the thread tail 12 of the cup-shaped container 10 by the adhesive layer 23 formed on the back surface thereof, including the following steps.

(1) A step of adsorbing the second label or sheet 22 affixed to the release paper 24 with the adhesive layer 23 at the front end of the adsorber 40 on the surface side thereof;
(2) A step of placing the cup-shaped container 10 on the mandrel 30 with the thread tail 12 facing outward;
(3) A step of storing the second label or sheet 22 adsorbed by the adsorber 40 in the thread tail 12 of the cup-shaped container 10 on the mandrel 30;
(4) By discharging air from the suction port 41 of the suction tool 40 or by moving the suction tool 40 itself toward the bottom surface 11 of the cup-shaped container 10, the second label or the back surface of the sheet 22 is made cup-shaped. Step of applying to the bottom surface 11 of the container 10 by the adhesive force of the adhesive layer 23 "
It is.

  That is, the invention of claim 2 is for forming the cup-shaped container 10 according to claim 1 and is a method for attaching the second label or sheet 22 to the bottom surface 11, and includes the step (1 ) To step (4), and the second label or sheet 22 is applied by the adhesive layer 23 formed on the back surface thereof.

  Of course, as described above, the cup-shaped container 10 is integrally molded using a synthetic resin as a material, and includes a bottom surface 11, a side wall 13 rising from the periphery thereof, and a thread tail 12 protruding downward from the periphery of the bottom surface 11. The first label or sheet 21 integrated with the side wall 13 is provided.

  First, in step (1), the surface side of the second label or sheet 22 affixed to the release paper 24 (not shown) with the adhesive layer 23 is placed on each suction port as shown in FIG. By sucking air from 41, it is adsorbed at the tip (lower end surface in the drawing) of the adsorbing tool 40 and prepared for sticking. At this time, since the second label or sheet 22 is not required to form a hole, the suction to the suction tool 40 by the suction of each suction port 41 is effectively performed.

  In addition, the adhesive layer 23 formed on the back surface of the second label or sheet 22 exhibits adhesive strength at room temperature, and adheres to the surface of, for example, a synthetic resin while being peeled from the release paper 24. It can be done.

  On the other hand, in the step (2), as shown in FIG. 2A, the cup-shaped container 10 described above is placed on the mandrel 30 so that the thread tail 12 is outward. At this time, since the bottom surface 11 is flat without any irregularities on the inner surface and the outer surface, the upper end of the mandrel 30 may be flat. It is mounted in the state.

  In step (3), as shown in FIG. 2B, the second label or sheet 22 adsorbed by lowering the adsorbing tool 40 is removed from the thread bottom of the cup-shaped container 10 on the mandrel 30. It is housed in 12.

  Then, in step (4), the second label or sheet 22 is directed to the bottom surface 11 of the cup-shaped container 10 by discharging air from the suction port 41 of the suction tool 40 or lowering the suction tool 40, and bonding. The pasting is performed by the adhesive force of the agent layer 23. At this time, since the illustrated upper surface of the bottom surface 11 was flat without unevenness, the second label or sheet 22 was stuck to the bottom surface 11 only by pressing the second label or sheet 22 by the suction tool 40. It is done in perfect condition without confinement.

  Therefore, according to the sticking method of the second aspect, the second label or the sheet 22 can be reliably stuck to the bottom surface 11 without performing heat sealing to which heat is applied. The cup-shaped container 10 in which the gas barrier property or the light shielding property by the second label or the sheet 22 is sufficient can be manufactured without causing deformation or whitening of the resin portion.

And in order to solve the above-mentioned problem, the means taken by the invention according to claim 3 are the same,
“A bottom surface 11, a side wall 13 rising from the periphery of the bottom surface 11, a thread tail 12 projecting downward from the periphery of the bottom surface 11, and a first label or sheet 21 integrated with the side wall 13 are integrally formed by injection molding. A method of attaching the second label or sheet 22 to the bottom surface 11 surrounded by the thread tail 12 of the cup-shaped container 10 by the adhesive layer 23 formed on the back surface thereof, including the following steps.

(A) The second end of the release paper 24 to which a large number of second labels or sheets 22 are attached is conveyed while being wound around by an endless belt 50 that is hung between and driven by the two rolls 51 and 52. Peeling the leading edge of the label or sheet 22 from the release paper 24;
(B) a step of placing the cup-shaped container 10 on the mandrel 30 with the yarn tail 12 facing outward;
(C) The step of bringing the tip of the endless belt 50 into the yarn tail 12 so that the tip of the second label or sheet 22 contacts the inner surface of the yarn tail 12 and is housed in the yarn tail 12;
(D) A process of applying the adhesive layer 23 with an adhesive force with the second label or sheet 22 facing the bottom surface 11 toward the bottom surface 11 ”
It is.

  That is, in order to obtain the cup-shaped container 10 according to the first aspect, the invention according to the third aspect has the step (a) on the outer surface of the bottom surface 11 surrounded by the thread bottom 12 with the second label or sheet 22. It is the method of sticking through-step (d). Of course, it goes without saying that the cup-shaped container 10 of claim 3 is the same as that of claim 1.

  First, in step (a), as shown in FIG. 3 (a), the leading edge of the release paper 24 to which a number of second labels or sheets 22 are attached is hung between both rolls 51 and 52. The endless belt 50 is driven and driven. Usually, each second label or sheet 22 is affixed to the surface of a long release paper 24 by an adhesive layer 23 formed on the back surface thereof, and has a larger rigidity than the release paper 24 itself. Therefore, if the release paper 24 is rolled and conveyed to the lower side of the endless belt 50, the leading end of each second label or sheet 22 is separated from the release paper 24 by its rigidity as shown in FIG. It is peeled off.

  On the other hand, in the step (b), the cup-shaped container 10 is placed on the mandrel 30 so that the thread tail 12 is outward as shown in FIG.

  Therefore, in step (c), if the tip of the endless belt 50 (the front roll 51 side in the illustrated example) is directed into the yarn end 12 and the conveyance of the endless belt 50 is further continued, the process shown in FIG. As shown, the second label or sheet 22 is housed in the yarn bottom 12 after its tip abuts against the inner surface of the yarn tail 12. At this time, the end of the endless belt 50 is inclined so that the tip of the second label or sheet 22 reaches the boundary between the yarn bottom 12 and the bottom surface 11.

  Finally, as shown in FIG. 4, as the step (d), the back surface of the second label or sheet 22 whose tip has reached the boundary between the yarn bottom 12 and the bottom surface 11 is moved to the bottom surface 11 by the pressing plate 53. By pressing toward the bottom surface, the second label or sheet 22 is attached to the bottom surface 11 by the adhesive force of the adhesive layer 23.

  Therefore, according to the sticking method according to the third aspect, the second label or the sheet 22 can be reliably stuck to the bottom surface 11 without performing heat sealing to which heat is applied. The cup-shaped container 10 in which the gas barrier property or the light shielding property by the second label or the sheet 22 is sufficient can be manufactured without causing deformation or whitening of the resin portion.

As detailed above, according to the invention of claim 1,
“A bottom surface 11, a side wall 13 rising from the periphery of the bottom surface 11, a thread tail 12 projecting downward from the periphery of the bottom surface 11, and a first label or sheet 21 integrated with the side wall 13 are integrally formed by injection molding. A cup-shaped container 10 comprising:
There is a structural feature in that the second label or sheet 22 is affixed to the bottom surface 11 surrounded by the thread tail 12 by the adhesive layer 23 formed on the back surface thereof. Labels or sheets 21 and 22 for enhancing the height of the side wall are integrated with the bottom surface 11 as well as the side wall 13. In particular, the label or sheet 22 on the bottom surface 11 has no holes and is outside the bottom surface. A fully integrated cup-shaped container 10 can be provided.

  In other words, according to the cup-shaped container 10 of claim 1, the gas barrier property is achieved by the first label or sheet 21 provided on the side wall 13 and the second label or sheet 22 attached to the thread tail 12. Since the second label or sheet 22 is flat and does not require a hole, its gas barrier property can be sufficient to transmit oxygen and the like. Can be reliably prevented, and the contents can hardly be oxidized (deteriorated).

According to the method of claim 2,
“A bottom surface 11, a side wall 13 rising from the periphery of the bottom surface 11, a thread tail 12 projecting downward from the periphery of the bottom surface 11, and a first label or sheet 21 integrated with the side wall 13 are integrally formed by injection molding. A method of attaching the second label or sheet 22 to the bottom surface 11 surrounded by the thread tail 12 of the cup-shaped container 10 by the adhesive layer 23 formed on the back surface thereof, including the following steps.

(1) A step of adsorbing the second label or sheet 22 affixed to the release paper 24 with the adhesive layer 23 at the front end of the adsorber 40 on the surface side thereof;
(2) A step of placing the cup-shaped container 10 on the mandrel 30 with the thread tail 12 facing outward;
(3) A step of storing the second label or sheet 22 adsorbed by the adsorber 40 in the thread tail 12 of the cup-shaped container 10 on the mandrel 30;
(4) By discharging air from the suction port 41 of the suction tool 40 or by moving the suction tool 40 itself toward the bottom surface 11 of the cup-shaped container 10, the second label or the back surface of the sheet 22 is made cup-shaped. Step of applying to the bottom surface 11 of the container 10 by the adhesive force of the adhesive layer 23 "
And according to the method of claim 3,
“A bottom surface 11, a side wall 13 rising from the periphery of the bottom surface 11, a thread tail 12 projecting downward from the periphery of the bottom surface 11, and a first label or sheet 21 integrated with the side wall 13 are integrally formed by injection molding. A method of attaching the second label or sheet 22 to the bottom surface 11 surrounded by the thread tail 12 of the cup-shaped container 10 by the adhesive layer 23 formed on the back surface thereof, including the following steps.

(A) The second end of the release paper 24 to which a large number of second labels or sheets 22 are attached is conveyed while being wound around by an endless belt 50 that is hung between and driven by the two rolls 51 and 52. Peeling the leading edge of the label or sheet 22 from the release paper 24;
(B) a step of placing the cup-shaped container 10 on the mandrel 30 with the yarn tail 12 facing outward;
(C) The step of bringing the tip of the endless belt 50 into the yarn tail 12 so that the tip of the second label or sheet 22 contacts the inner surface of the yarn tail 12 and is housed in the yarn tail 12;
(D) A process of applying the adhesive layer 23 with an adhesive force with the second label or sheet 22 facing the bottom surface 11 toward the bottom surface 11 ”
Thus, the second label or sheet 22 can be reliably attached to the bottom surface 11 without performing heat sealing to which heat is applied, so that the synthetic resin portion of the cup-shaped container 10 can be deformed. The cup-shaped container 10 according to claim 1 in which the gas barrier property or the light shielding property by the second label or the sheet 22 becomes sufficient without causing whitening can be reliably produced.

  Next, the invention according to each claim configured as described above will be described with respect to the cup-shaped container 10 which is the best mode shown in the drawings. Or the sticking of the sheet | seat 22 is performed by the method which concerns on Example 1 or Example 2. FIG.

  First, the basic configuration of the cup-shaped container 10 according to claim 1 is substantially the same as the conventional cup-shaped container shown in FIGS. That is, the cup-shaped container 10 is integrally formed by injection molding of synthetic resin as shown in FIG. 1 except for the second label or sheet 22 attached to the bottom surface 11. And a side wall 13 rising from the periphery thereof, a thread tail 12 protruding downward from the periphery of the bottom surface 11, and a first label or sheet 21 integrated with the side wall 13.

  As shown in FIGS. 1 and 2, the bottom surface 11 of the cup-shaped container 10 is not uneven at all on the inner side surface and the outer side surface, unlike the prior art shown in FIG. 5. That is, in forming the cup-shaped container 10, as shown in FIG. 1, there is no need to form a round hole or unevenness in the gate opening portion of the bottom surface 11. Moreover, the thread tail 12 of the cup-shaped container 10 stabilizes the cup-shaped container 10 as a whole when placed on a desk, and prevents the bottom surface 11 from coming into contact with the surface of the desk. Is.

  The first label or sheet 21 integrated with the side wall 13 has light shielding properties and gas barrier properties, and is stored in the cavity for the side wall 13 when the side wall 13 is injection-molded. The synthetic resin is injected into the side wall 13 so as to be integrated with the side wall 13. Of course, the integration place of this 1st label or sheet | seat 21 has both the case of the inner side of the side wall 13, and the case of the outer side.

  In the cup-shaped container 10, as shown in FIGS. 1 and 2, the second label or sheet 22 is formed on the bottom surface 11 surrounded by the thread tail 12 by the adhesive layer 23 formed on the back surface. Affixed. As with the first label or sheet 21, the second label or sheet 22 has a gas barrier property that prevents moisture and oxygen from entering the cup-shaped container 10, and a light shielding property that prevents ultraviolet light from entering. It is provided and is stuck to the outside of the bottom surface 11 by the adhesive layer 23 on the back surface. The adhesive layer 23 sticks to the surface of the synthetic resin at room temperature, and does not mean that the adhesive function cannot be exhibited unless heat sealing is performed, that is, heat is not applied.

  Further, since the second label or sheet 22 is affixed to the bottom surface 11 without round holes or irregularities, the surface has no irregularities and is affixed to the flat bottom surface 11 after being molded. Therefore, there is no round hole through which the resin from the gate passes.

  As described above, the second label or sheet 22 is attached to the outer surface of the bottom surface 11 by the attaching method of Example 1 or Example 2. Separately described.

  The said 2nd label or sheet | seat 22 is affixed on the outer surface of the bottom face 11 with the adhesive bond layer 23 formed in the back surface including the following process (1)-process (4). The adhesive layer 23 formed on the back surface of the second label or sheet 22 exhibits adhesive strength at room temperature, and can be adhered to, for example, the surface of a synthetic resin while being peeled off from the release paper 24. Is.

  First, in step (1), the surface side of the second label or sheet 22 affixed to the release paper 24 (not shown) with the adhesive layer 23 is applied to each suction as shown in FIG. By sucking air from the mouth 41, it is adsorbed by the tip (lower end surface in the drawing) of the adsorbing tool 40 and prepared for sticking. At this time, since the second label or sheet 22 is not required to form a hole, the suction to the suction tool 40 by the suction of each suction port 41 is effectively performed.

  On the other hand, in the step (2), as shown in FIG. 2A, the above-described cup-shaped container 10 is placed on the mandrel 30 with the yarn tail 12 facing outward. At this time, since the bottom surface 11 is flat without any irregularities on the inner surface and the outer surface, the upper end of the mandrel 30 may be flat. It is mounted in the state.

  In step (3), as shown in (b) of FIG. 2, by lowering the suction tool 40, the second label or sheet 22 that has been sucked is removed from the thread of the cup-shaped container 10 on the mandrel 30. Store in the butt 12.

  In step (4), the second label or sheet 22 is discharged by discharging air from the suction port 41 of the suction tool 40 or by lowering the suction tool 40 itself with the second label or sheet 22 being sucked. Is pressed against the bottom surface 11 of the cup-shaped container 10, and the adhesive layer 23 is applied by the adhesive force. At this time, since the illustrated upper surface of the bottom surface 11 was flat without unevenness, the application of the second label or sheet 22 to the bottom surface 11 was completed only by pressing the second label or sheet 22 by the suction tool 40. Made in

  The said 2nd label or sheet | seat 22 is affixed on the outer surface of the bottom face 11 with the adhesive bond layer 23 formed in the back surface including the following process (a)-process (d). The adhesive layer 23 formed on the back surface of the second label or sheet 22 exhibits adhesive strength at room temperature, and can be adhered to, for example, the surface of a synthetic resin while being peeled off from the release paper 24. As described above, it is a thing.

  First, in step (a), as shown in FIG. 3 (a), the leading edge of the release paper 24 to which a number of second labels or sheets 22 are stuck is placed between both rolls 51 and 52. The belt is wound by an endless belt 50 that is mounted and driven. Usually, each second label or sheet 22 is affixed to the surface of a long release paper 24 by an adhesive layer 23 formed on the back surface thereof, and has a larger rigidity than the release paper 24 itself. Therefore, if the release paper 24 is rolled and conveyed to the lower side of the endless belt 50, the leading edge of each second label or sheet 22 is released according to its rigidity as shown in FIG. Is peeled off.

  On the other hand, in the step (b), the cup-shaped container 10 is placed on the mandrel 30 so that the thread tail 12 is outward as shown in FIG.

  Therefore, in step (c), if the tip of the endless belt 50 (the front roll 51 side in the illustrated example) is directed into the yarn end 12 and the conveyance of the endless belt 50 is further continued, the process shown in FIG. As shown, the tip of the second label or sheet 22 is brought into contact with the inner surface of the thread tail 12, and the second label or sheet 22 is stored in the thread tail 12. At this time, the end of the endless belt 50 is inclined so that the tip of the second label or sheet 22 reaches the boundary between the yarn bottom 12 and the bottom surface 11.

  As shown in FIG. 3, the endless belt 50 is hung between the front roll 51 and the rear roll 52, and the release paper 24 to which a number of second labels or sheets 22 are attached is cup-shaped. It sends out toward the container 10 in order. Although not shown, a winder for winding the release paper 24 from which the second label or sheet 22 has been peeled is disposed below the front roll 51, and a number of winders are disposed behind the rear roll 52. A rewinder is provided for returning the release paper 24 to which the second label or sheet 22 is attached.

  Finally, as shown in FIG. 4, as a step (d), the back surface of the second label or sheet 22 whose tip has reached the boundary between the yarn bottom 12 and the bottom surface 11 is pressed by the pressing plate 53 to the bottom surface 11. By pressing toward the bottom, the adhesive layer 23 sticks the second label or sheet 22 to the bottom surface 11.

It is a longitudinal cross-sectional view of the cup-shaped container which concerns on this invention. The sticking method which concerns on Claim 2 is demonstrated, (a) is a fragmentary sectional view which shows the state which mounted the cup-shaped container on the mandrel while adsorb | sucking a 2nd label or a sheet | seat with an adsorption tool, (b) FIG. 4 is a partial cross-sectional view showing a state in which an adsorbing tool that adsorbs a second label or sheet is placed in a thread tail. FIG. 4 is a partial cross-sectional view illustrating a sticking method according to claim 3, wherein (a) is a state in which a release paper 24 hung on an endless belt 50 is rolled up and a leading end of a second label or sheet is about to be put into a yarn end. (B) is a partial cross-sectional view showing a state in which the leading end of the second label or sheet is in contact with the yarn bottom. It is sectional drawing explaining the last process of the sticking method which concerns on Claim 3. It is a longitudinal cross-sectional view which shows the prior art. It shows other conventional techniques, (a) is a longitudinal sectional view showing a state in which the label is stored in the bottom surface, (b) is a longitudinal sectional view showing a state in which the label stored in the bottom surface is pressed. is there.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Cup-shaped container 11 Bottom surface 12 Yarn bottom 13 Side wall 21 1st label or sheet 22 2nd label or sheet 23 Adhesive layer 24 Release paper 30 Mandrel 40 Adsorption tool 41 Suction port 50 Endless belt 51 Front roll 52 Back roll 53 Holding plate

Claims (3)

A cup-shaped container integrally formed by injection molding, comprising a bottom surface, a side wall rising from the periphery thereof, a thread tail protruding downward from the periphery of the bottom surface, and a first label or sheet integrated with the side wall; There,
A cup-shaped container, wherein a second label or sheet is attached to the bottom surface surrounded by the thread end by an adhesive layer formed on the back surface thereof. A cup-shaped container integrally formed by injection molding, comprising a bottom surface, a side wall rising from the periphery thereof, a thread tail protruding downward from the periphery of the bottom surface, and a first label or sheet integrated with the side wall. A method in which the second label or sheet is attached to the bottom surface surrounded by the thread end by the adhesive layer formed on the back surface, including the following steps.
(1) A step of adsorbing the second label or sheet affixed to the release paper with an adhesive layer at the front end of the adsorber on the surface side thereof;
(2) A step of placing the cup-shaped container on a mandrel so that the thread tail is outward;
(3) A step of storing the second label or sheet adsorbed by the adsorber in a thread end of a cup-shaped container on the mandrel;
(4) By discharging air from the suction port of the suction tool or by moving the suction tool itself toward the bottom surface of the cup-shaped container, the back surface of the second label or sheet is moved to the cup-shaped container. The process of sticking with respect to the bottom face by the adhesive force of the said adhesive bond layer. A cup-shaped container integrally formed by injection molding, comprising a bottom surface, a side wall rising from the periphery thereof, a thread tail protruding downward from the periphery of the bottom surface, and a first label or sheet integrated with the side wall. A method in which the second label or sheet is attached to the bottom surface surrounded by the thread end by the adhesive layer formed on the back surface, including the following steps.
(A) The leading edge of the second label or sheet is conveyed by winding the leading edge of the release paper on which a number of second labels or sheets are attached while being wound by an endless belt that is hung between both rolls and driven. Removing from the release paper;
(B) a step of placing the cup-shaped container on a mandrel so that the thread tail is outward;
(C) The step of bringing the end of the endless belt into the yarn tail so that the tip of the second label or sheet is brought into contact with the inner surface of the yarn tail and stored in the yarn tail;
(D) A step of attaching the second label or the sheet by the adhesive force of the adhesive layer with the back surface of the sheet facing the bottom surface.

Images