CN110775321A

CN110775321A - Method for producing PTP sheet, and PTP sheet

Info

Publication number: CN110775321A
Application number: CN201910670821.9A
Authority: CN
Inventors: 野田尚彦; 细田一也; 大山刚; 坂井田宪彦
Original assignee: CKD Corp
Current assignee: CKD Corp
Priority date: 2018-07-25
Filing date: 2019-07-24
Publication date: 2020-02-11
Also published as: JP2020014694A; JP7083719B2

Abstract

The invention provides a PTP sheet manufacturing method capable of restraining reduction of appearance quality of a printing part. The manufacturing process of the PTP sheet (1) comprises a filling step of filling the tablet (5) in the bag part (2) of the container film (3). In the filling step, a printing portion (5J) is formed on only one of the outer surface side and the inner surface side of the tablet (5) by a printing device (61), and the tablet (5) is filled so that the surface on which the printing portion (5J) is formed faces the bag portion (2). The tablet (5) and the bag (2) are in a non-contact relationship between the printing portion (5J) and the bag (2). Since the bag portion (2) is not deformed by normal vibration or the like, contact between the printing portion (5J) and the bag portion (2) can be more reliably avoided according to the above-described relationship. On the other hand, since the printing portion (5J) is not formed on the mask film side where there is a concern of deformation, rubbing of the printing portion (5J) accompanying contact with the mask film can be prevented.

Description

Method for producing PTP sheet, and PTP sheet

Technical Field

The present invention relates to a PTP tablet containing a printed tablet and a method for producing the same.

Background

In general, PTP (press through pack) sheets are known as blister pack sheets used in the field of pharmaceuticals and the like. The PTP sheet comprises: a container film having a pocket for receiving a tablet; and a cover film attached to the container film so as to seal the opening side of the bag portion.

The PTP sheet is manufactured by the steps including: forming a bag portion on the conveyed belt-shaped container film; filling the bag with a tablet; a step of attaching a band-shaped cover film to the container film so as to seal the opening side of the bag portion; and a step of pressing a band-shaped PTP film composed of a container film and a cover film in a PTP sheet unit.

In recent years, tablets and the like having printed portions formed by printing identification information such as characters and symbols with an ink jet printing apparatus have been known (for example, see patent document 1).

However, in the case where a large number of tablets printed in advance by the tablet printing apparatus as disclosed in patent document 1 are loaded into a hopper (tablet storage section) of a PTP packaging machine and sequentially filled into a bag portion of a container film from there to produce PTP sheets, there is a risk that the printed portion of the tablet scratches or is missing during the period until the tablet is filled into the bag portion in the hopper, the supply dispenser, or the like, and the printed content is unclear. In particular, in the case of a brittle tablet such as an intraoral destruction tablet, such inconvenience is more significant.

In contrast, PTP packaging machines and the like having a function of printing on tablets have been known (see, for example, patent document 2).

Documents of the prior art

Patent document

Patent document 1: JP patent publication (Kokai) No. 2017-164488

Patent document 2: JP Kokai Sho 50-118262A

Disclosure of Invention

Problems to be solved by the invention

However, in the process of sequentially conveying and filling the tablets into the bag portion by the rotary drum as in patent document 2, when printing is performed on the tablets, the printed portion that has just been printed is not directly in contact with the bag portion and the overcoat film while the ink is being dried. Therefore, there is a risk that the printed contents are unclear due to rubbing of the printed portion of the tablet and the pocket portion.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a method for manufacturing a PTP sheet, etc., which can suppress a decrease in the appearance quality of a printed portion.

Means for solving the problems

In the following, the respective technical solutions suitable for solving the above-described object will be described in sections. In addition, according to the needs, the special function and effect are added behind the corresponding technical scheme.

The present invention according to claim 1 relates to a method for manufacturing a PTP sheet in which a tablet is received in a bag portion formed in a container film, and a cover film is attached to the container film so as to close the bag portion, the method comprising:

a bag forming step of forming the bag on the conveyed belt-shaped container film;

a filling step of filling the bag with a tablet;

a mounting step of mounting the band-shaped cover film on the container film having the tablet accommodated in the pocket so as to close the pocket;

a cutting step of cutting a PTP piece from a band-shaped PTP film having the cover film attached to the container film;

in the filling step, a printing portion is formed by printing only one of an outer surface and an inner surface of the tablet by an inkjet printing apparatus while the tablet is sucked and conveyed, and the tablet is filled in the bag portion such that the surface on which the printing portion is formed faces the bag portion;

the tablet and the bag portion are in a state in which the tablet is filled in the bag portion, and the printed portion formed on the tablet and the bag portion are in a non-contact relationship.

In order to prevent the unclear printed contents, it is useful to prevent the rubbing of the printed portion with the bag portion and the overcoat film. As a method of preventing the printed portion from coming into contact with the bag portion or the like, for example, there are considered: as described in claim 2 below, the tablet or the like is designed so that a recess is formed and a printed portion is provided in the recess, and the tablet, the bag, and the cover film are designed so that the printed portion is not in contact with both the bag and the cover film in a state where the bag is filled with the tablet and the cover film is attached to the container film.

However, the overcoat film is generally soft and easily deformable. Therefore, even when the tablet or the like is designed so that the printed portion does not contact the cover film, the cover film may be deformed (for example, vibrated) by an impact, vibration, or the like generated in the manufacturing process, and thus the cover film may contact the printed portion.

In this respect, according to claim 1, the tablet and the bag portion are designed in such a manner that the printed portion formed in the bag portion and the bag portion do not contact each other in a state where the tablet is filled in the bag portion. In the filling step, a printed portion is formed on only one of the outer surface and the inner surface of the tablet, and the tablet is filled so that the surface on which the printed portion is formed faces the pocket portion. Here, the bag portion is made of a material having rigidity as compared with the cover film, and is not deformed by impact, vibration, or the like generated in the manufacturing process. Thus, for example, by forming the printing portion in the concave portion and designing in such a manner that the printing portion and the bag portion do not contact with each other, it is possible to more reliably avoid the printing portion from contacting the bag portion. On the other hand, since the printing portion is not formed on the cover film side where there is a concern of deformation, rubbing of the printing portion accompanying contact with the cover film does not occur. As a result, it is possible to prevent the printed matter from becoming unclear more reliably, and to effectively suppress the deterioration in the appearance quality of the printed portion.

Further, according to the above-described means 1, since the bag portion can be filled with the tablets before the ink is sufficiently dried, the requirement for increasing the tablet conveying speed (filling speed) (for example, packaging 100 or more tablets per second) can be sufficiently satisfied, and the production speed can be significantly increased.

Claim 2 relates to the method of manufacturing a PTP sheet of claim 1, wherein a concave portion is formed in advance in the tablet, and the printed portion is formed inside the concave portion in the filling step, whereby the printed portion and the bag portion are not in contact with each other.

According to claim 2, the printed portion and the bag portion can be easily formed in a non-contact relationship without particularly designing the shape of the bag portion.

In addition, in the inkjet printing apparatus, there is a fear that the ejected ink flows and the printing quality is deteriorated due to the influence of the wind (air flow), but in this respect, according to the above-described aspect 2, since the printing is performed inside the concave portion, the tablet (particularly, the portion where the concave portion is formed) serves as a windshield. This effectively suppresses the occurrence of the above-described inconvenience due to the influence of wind, and can more reliably obtain good print quality.

The method of manufacturing a PTP sheet according to claim 3 is the method according to claim 2, wherein the filling step includes a step of obtaining image data by imaging a surface of the tablet on which at least the concave portion is formed;

in the filling step, the inkjet printing device is controlled to print inside the concave portion based on the image data.

According to claim 3, the position, orientation, and the like of the recessed portion of the tablet constituting the printing target before printing can be grasped from the image data obtained in the imaging step, and printing can be performed by the inkjet printing device in accordance with the position, orientation, and the like of the recessed portion.

Claim 4 relates to the method of manufacturing a PTP sheet according to

claim

2 or 3, wherein the concave portion is in a state of not communicating with the side surface of the tablet.

According to claim 4, the tablet portion (surrounding the entire circumference of the bottom wall surface of the recess) is present around the entire circumference of the recess. This makes it extremely difficult for the printed portion to come into contact with the pocket portion, and thus, the quality of the printed portion can be more effectively prevented from being degraded. Further, the function of the damper as the tablet portion around the recess portion can be more effectively exhibited, and occurrence of defective printing due to the influence of wind can be more reliably prevented.

The PTP sheet according to claim 5 is a PTP sheet in which a tablet is received in a bag portion formed in a container film, and a cover film is attached to the container film so as to close the bag portion, characterized in that:

the tablet includes a printing portion for performing ink jet printing on only one of the outer surface and the inner surface, and the tablet is filled in the bag portion in a state that the surface on the side where the printing portion is formed faces the bag portion;

the printed portion formed in the tablet and the pocket portion filled with the tablet do not contact each other.

According to claim 5, the same operational effects as those of claim 1 are achieved.

The PTP sheet according to claim 6 to claim 5, wherein the tablet includes a recess, and the printed portion is formed inside the recess, so that the printed portion formed in the tablet and the pocket filled with the tablet do not contact each other.

According to claim 6, the same operational effects as those of claim 2 are achieved.

Drawings

FIG. 1 is a perspective view showing a PTP sheet;

FIG. 2 is an enlarged partial cross-sectional view of a PTP tablet;

FIG. 3 is a perspective view showing the tablet as viewed from the outer surface side;

FIG. 4 is a perspective view showing the tablet when viewed from the inner surface side;

fig. 5 is a schematic diagram showing the general structure of the PTP packaging machine;

fig. 6 is a schematic view, partially in cross section, showing the general structure of a tablet filling apparatus;

FIG. 7 is a partially cut-away perspective view showing a rotary cylinder and a stationary valve;

FIG. 8 is a partially cut-away perspective view showing a rotary cylinder and a stationary valve;

fig. 9 is a partially enlarged sectional view of the rotary cylinder showing the suction portion;

FIG. 10 is a perspective view showing a PTP membrane;

FIG. 11 is a flowchart showing the production process of a PTP sheet.

Detailed Description

An embodiment will be described below with reference to the drawings. First, the structure of the PTP sheet will be specifically explained.

As shown in fig. 1 and 2, the PTP sheet 1 includes: a container film 3, the container film 3 having a plurality of bag portions 2; and a cover film 4, wherein the cover film 4 is attached to the container film 3 so as to seal the bag portion 2.

The container film 3 of the present embodiment is formed of a transparent thermoplastic resin material such as PP (polypropylene), PVC (polyvinyl chloride), or the like, and has light transmittance. On the other hand, the cover film 4 is formed of an opaque material (e.g., aluminum foil or the like) provided on the outer face by, for example, a sealant composed of polypropylene resin or the like. The container film 3 has a large thick wall and sufficient rigidity, while the cover film 4 has a very thin wall and is easily deformed by vibration, impact, or the like. The material of each of the films 3 and 4 is not limited to this, and other materials may be used.

The PTP sheet 1 is manufactured by the following method: a band-shaped PTP film 6 (see fig. 10) formed by the band-shaped container film 3 and the band-shaped cover film 4 is punched in a sheet shape, and the PTP sheet 1 is substantially rectangular in a plan view. In the

PTP sheet

1, 2 rows of pockets are formed in the sheet width direction, and each row of pockets is constituted by 5 pocket portions 2 arranged in the sheet length direction. That is, a total of 10 bag portions 2 are formed. In each pocket 2, tablets 5 are received one at a time.

The tablet 5 of the present embodiment is a disc-shaped die agent having a circular shape in plan view, and has a structure including a side surface 5A, and an outer surface 5B and an inner surface 5C sandwiching the side surface 5A. The side surface 5A includes a tapered portion 5D formed by chamfering a boundary portion with the outer surface 5B and a tapered portion 5E formed by chamfering a boundary portion with the inner surface 5C.

As shown in fig. 3 and 4, concave portions 5F are formed on both the inner and outer surfaces of the tablet 5. More specifically, 2 recesses 5F having a rectangular shape in plan view are provided on the outer surface 5B and the inner surface 5C of the tablet 5, and these recesses 5F are arranged in parallel at positions sandwiching the center of the outer surface 5B. In the present embodiment, the shape and positional relationship of the recesses 5F provided on the outer surface 5B side are the same as those of the recesses 5F provided on the inner surface 5C side.

In the present embodiment, each of the recesses 5F is not in communication with the side surface 5A of the tablet 5, and the structural portion of the tablet 5 (the entire periphery of the bottom wall surface of the recess 5F is surrounded by the side wall) is provided around the entire periphery of the recess 5F. The depth of the recess 5F is, for example, 0.5mm or more, and the bottom wall surface of the recess 5F is a flat surface.

Further, a printing portion 5J is formed on the outer surface 5B and the bottom wall surface of the recess portion 5F, and characters, symbols, numerals, figures, and the like indicating product information relating to the tablet 5 are ink-jet printed on the printing portion 5J. The printed portion 5J is a portion of the tablet 5 on which characters, numerals, and the like are printed, and is provided only inside the recess portion 5F. In the present embodiment, the printing unit 5J is printed with a predetermined character and a predetermined number in the example shown in fig. 3. The product information relating to the tablet 5 includes "product name", "content", "dosage form", "production source", and "lot number".

On the other hand, the bottom wall surface of the recess 5F on the inner surface 5C side is configured so that the printed portion 5J is not formed. Accordingly, the tablet 5 of the present embodiment has a structure having the printed portion 5J only on the outer surface 5B side.

In the present embodiment, the outer surface 5B and the inner surface 5C are different only in whether or not the printing portion 5J is provided, and for convenience, the surface on which the printing portion 5J is formed is the outer surface 5B, and the surface on which the printing portion 5J is not provided is the inner surface 5C. Obviously, the surface on which the printing portion 5J is formed may be the inner surface 5C, and the surface on which the printing portion 5J is not formed may be the outer surface 5B.

Further, the pocket 2 is filled with the tablet 5 in a state where the outer surface 5B, which is the surface on the side where the printed portion 5J is formed, faces the pocket 2 (see fig. 2). Further, by forming the printed portion 5J inside the concave portion 5F, the printed portion 5J formed on the tablet 5 and the bag portion 2 filled with the tablet 5 are not in contact with each other in design.

Next, the general structure of the PTP packaging machine 10 for producing the PTP sheet 1 will be described with reference to fig. 5.

As shown in fig. 5, a raw material roll of the band-like container film 3 is wound in a roll shape on the most upstream side of the PTP packaging machine 10. The projecting end side of the container film 3 wound in a roll shape is guided to the guide roller 13. The container film 3 is wound around the intermittent transfer roller 14 on the downstream side of the guide roller 13. The intermittent conveyance roller 14 is connected to a motor that rotates in an intermittent manner, and conveys the container film 3 in an intermittent manner.

Between the guide roller 13 and the intermittent conveyance roller 14, a heating device 15 and a bag portion forming device 16 are provided in this order along the conveyance path of the container film 3. Further, the container film 3 is heated by the heating device 15, the container film 3 is in a relatively soft state, and the bag portion forming device 16 forms a plurality of bag portions 2 at predetermined positions of the container film 3. The bag portion 2 is formed at the time of the interval between the conveying operations of the container film 3 by the intermittent conveying roller 14.

The container film 3 fed out from the intermittent feed roller 14 is wound around a tension roller 18, a guide roller 19, and a film receiving roller 20 in this order. Since the film receiving roller 20 is connected to a motor that rotates to some extent, the container film 3 is conveyed continuously and at a certain speed. The tension roller 18 is in a state of being stretched to the side where the PTP film 6 is tensioned by the elastic force, and prevents the container film 3 from being slackened due to the difference in the conveyance operation between the intermittent conveyance roller 14 and the film receiving roller 20, and the container film 3 is constantly maintained in a tensioned state.

Between the guide roller 19 and the film receiving roller 20, a tablet filling device 21 and an inspection device 22 are provided in this order along the transport path of the container film 3.

The tablet filling device 21 functions as a filling mechanism for filling the bag 2 with the tablets 5. The tablet filling device 21 sucks and conveys the tablet 5 in synchronization with the conveying operation of the container film 3 by the film receiving roller 20, and automatically fills the bag portion 2 with the tablet 5. The details of the tablet filling device 21 will be described later.

The inspection device 22 performs an inspection mainly relating to a tablet failure, such as whether or not the tablet 5 is reliably filled in the bag portion 2, whether or not an abnormality occurs in the tablet 5, whether or not foreign matter is mixed in the bag portion 2, and the like.

On the other hand, the raw material roll of the cover film 4 formed in a band shape is wound in a roll shape on the most upstream side. The protruding end of the cover film 4 wound in a roll shape is guided to the heating roller 25 by the guide roller 24.

The heating roller 25 is brought into pressure contact with the film receiving roller 20, and the container film 3 and the cover film 4 are fed between the rollers 2, 20 and 25. Next, the container film 3 and the cover film 4 are passed between the 2 rollers 20 and 25 in a heat-pressure bonded state, whereby the cover film 4 is attached to the container film 3, and the bag portion 2 is closed by the cover film 4. Thereby, the PTP film 6 in a belt shape in which the tablet 5 is received in the bag portion 2 is manufactured.

The PTP films 6 fed out from the film receiving roller 20 are sequentially wound between the tension roller 27 and the intermittent conveyance roller 28. Since the intermittent conveyance roller 28 is connected to a motor that rotates intermittently, the intermittent conveyance roller 28 conveys the PTP film 6 in an intermittent manner. The tension roller 27 is in a state of being stretched to the side where the PTP film 6 is tensioned by the elastic force, prevents the PTP film 6 from being loosened due to the difference in the conveying operation between the film supporting roller 20 and the intermittent conveying roller 28, and constantly holds the PTP film 6 in a tensioned state.

The PTP film 6 fed out from the intermittent conveyance roller 28 is wound around the tension roller 31 and the intermittent conveyance roller 32 in this order. Since the intermittent conveyance roller 32 is connected to a motor that rotates intermittently, the intermittent conveyance roller 32 conveys the PTP film 6 in an intermittent manner. The tension roller 31 is in a state of being stretched to the side where the PTP film 6 is tensioned by the elastic force, and prevents the PTP film 6 between the above-described intermittent conveying rollers 28, 32 from being loosened.

Between the intermittent conveyance roller 28 and the tension roller 31, a slit forming device 33 and an engraving device 34 are provided in this order along the conveyance path of the PTP film 6. The slit forming device 33 has a function of forming slits for dicing at predetermined positions of the PTP film 6. The embossing device 34 has a function of providing embossing at a predetermined position (for example, a label portion) of the PTP film 6.

The PTP film 6 fed from the intermittent transport roller 32 is wound around the tension roller 35 and the continuous transport roller 36 in this order on the downstream side. Between the intermittent conveyance roller 32 and the tension roller 35, a sheet pressing device 37 is provided along the conveyance path of the PTP film 6. The sheet pressing device 3 has a function of pressing the outer edge of the PTP film 6 in units of PTP sheets 1.

The PTP sheet 1 punched by the sheet punching device 37 is transported by a conveyor 39 and temporarily stored in a finished product hopper 40. However, the PTP sheet 1 determined as defective by the inspection device 22 is not fed to the product hopper 40, but is individually discharged by a defective sheet discharging mechanism not shown in the drawings.

A cutting device 41 is provided downstream of the continuous conveyance roller 36. The unnecessary film portion 42 constituting the surplus material portion (scrap portion) remaining in a band shape after the punching by the sheet punching device 37 is guided to the stretching roller 35 and the continuous feed roller 36 and then guided to the cutting device 41. Further, the driven roller is pressed against the continuous transport roller 36, and the continuous transport roller 36 performs a transport operation while holding the unnecessary film portion 42 therebetween. The cutting device 41 cuts the unnecessary film portion 42 to a predetermined size. The cut unnecessary film portion 42 (scrap portion) is stored in a scrap hopper 43 and then is individually discarded.

Further, the rollers 14, 20, 28, 31, 32 and the like are in a positional relationship in which the roller surfaces face the bag portion 2, and since the concave portion for receiving the bag portion 2 is formed on the surface of the intermittent conveyance roller 14 and the like, the bag portion 2 is not crushed. Further, the bag portion 2 is received in each concave portion of the intermittent conveying roller 14 and the like, and the conveying operation is performed, whereby the intermittent conveying operation and the continuous conveying operation are reliably performed.

The structure of the tablet filling device 21 will be specifically described below with reference to the drawings. Fig. 6 is a partially sectional schematic diagram showing the general configuration of the tablet filling device 21.

As shown in fig. 6, the tablet filling apparatus 21 includes a storage section 45, a supply dispenser 46, a1 st rotary cylinder 47, a2 nd rotary cylinder 48, and a 3 rd rotary cylinder 49 in this order from the upstream side along the supply path of the tablets 5. The tablet filling device 21 is provided with an imaging device 51 corresponding to the 1 st rotary drum 47 and a printing device 61 corresponding to the 3 rd rotary drum 49. The mechanism units (the storage unit 45, the supply dispenser 46, the

rotary cylinders

47, 48, and 49, the image pickup device 51, and the printing device 61) of the tablet filling device 21 are driven and controlled by a controller 71.

The following specifically describes each mechanism of the tablet filling device 21 and the controller 71.

The storage section 45 is configured to store a plurality of tablets 5, and is configured to sequentially supply the tablets 5 from there to the supply dispenser 46. The tablet 5 stored in the storage portion 45 is a tablet in which the concave portion 5F is formed, but the printed portion 5J is not formed.

The supply dispenser 46 is provided corresponding to the position of each bag portion 2 in the width direction (depth direction of the paper surface in fig. 6) of the container film 3 that is horizontally conveyed. That is, in the present embodiment, 5 supply dispensers 46 are provided in parallel in the width direction of the container film 3. Each of the supply dispensers 46 is formed in a cylindrical shape, and is configured to stack the tablets 5 in a row in a vertical direction in a horizontal posture.

Each supply dispenser 46 is provided with a lower opening portion close to the 1 st rotary cylinder 47. More specifically, the lower opening of each supply dispenser 46 is provided at a predetermined position slightly shifted downstream from a position immediately above a rotary shaft 54 described later in the 1 st rotary cylinder 47, in the vicinity of the 1 st rotary cylinder 47 in the rotation direction thereof.

A shutter 46A that can open and close the lower opening of each supply dispenser 46 is provided in the vicinity of the lower opening. Further, by opening and closing the shutter 46A, the tablets 5 can be naturally dropped from the supply dispenser 46 one at a time and can be supplied to the 1 st rotary cylinder 47. The orientation of the recess 5F of the tablet 5 fed to the 1 st rotary cylinder 47 is various and not necessarily.

Next, the 1 st rotary drum 47, the 2 nd rotary drum 48, and the 3 rd rotary drum 49 will be described. Since the 1 st rotary drum 47, the 2 nd rotary drum 48, and the 3 rd rotary drum 49 have the same configuration, they will be collectively referred to as "rotary drums 47, 48, and 49" herein.

The

rotary cylinders

47, 48, 49 are cylindrical and rotatably supported by shafts. The

rotary cylinders

47, 48, 49 are provided so that the rotary shafts 54 thereof are parallel to the axial direction of the container film 3. The rotary shaft 54 is directly or indirectly connected to a drive mechanism such as a motor not shown in the drawings, and is rotationally driven by the motor. The

rotary cylinders

47, 48, and 49 integrally rotate with the rotation of the rotary shaft 54.

As shown in fig. 7 and 8, a plurality of suction portions 55A are formed on the outer peripheral surface of

rotary cylinders

47, 48, and 49, and the suction portions 55A are used for suction-holding tablet 5. The suction portions 55A are regularly arranged at predetermined intervals in the circumferential direction and the axial direction of the

rotary cylinders

47, 48, 49. In the present embodiment, 5 suction portions 55A are provided at equal intervals in the axial direction of the

rotary cylinders

47, 48, 49 at positions corresponding to the respective bag portions 2 in the width direction of the container film 3. Further, 7 rows of 5 suction portions 55A arranged in parallel in the axial direction (hereinafter referred to as "rows of suction portions 55A") are provided at equal intervals in the circumferential direction of the

rotary cylinders

47, 48, 49. The formation interval (pitch) of the suction portions 55A in the circumferential direction of the

relative rotation cylinders

47, 48, 49 is the same as the formation interval of the bag portions 2 in the conveying direction (the right direction in fig. 6) of the container film 3.

Each suction portion 55A has a substantially circular shape, as viewed from a plane viewed in the radial direction of

rotary cylinders

47, 48, 49, and has a size capable of receiving tablet 5. Each suction portion 55A is substantially arc-shaped when viewed in a cross section along the radial direction of the

rotary cylinders

47, 48, 49 (see fig. 9). That is, each suction portion 55A is a concave portion that is recessed in a substantially spherical shape on the outer peripheral surface of the

rotary cylinders

47, 48, 49.

In the present embodiment, the following configuration is adopted: in a state where tablet 5 is sucked and held by suction-contact portion 55A, tapered portion 5D or tapered portion 5E of tablet 5 comes into contact with suction-contact portion 55A, and the portion of tablet 5 where recess 5F is formed is in a state of not coming into contact with suction-contact portion 55A (see fig. 9). In a state where tablet 5 is sucked and held by suction-contact portion 55A, a part (about half in the present embodiment) of tablet 5 protrudes from the outer peripheral surface of

rotary cylinders

47, 48, 49.

Suction holes 55B formed in the radial direction of the

rotary cylinders

47, 48, and 49 are opened at the bottom center of each suction portion 55A. Further, a plurality of ventilation passages 55C extending in the axial direction are provided in the

rotary cylinders

47, 48, 49 so as to correspond to the rows of the suction portions 55A. That is, in the present embodiment, 7 air passages 55C are provided at equal intervals in the rotation direction of the

rotary cylinders

47, 48, 49.

Each air passage 55C communicates with 5 suction holes 55B arranged in parallel in the axial direction of the

rotary cylinders

47, 48, 49. Each air passage 55C is open to a side surface on one end side in the axial direction of the

rotary cylinders

47, 48, 49. Further, a disk-shaped fixed valve 56 is provided on a side surface (a side surface on which the air passage 55C opens) on one end side in the axial direction of the

rotary cylinders

47, 48, 49 so as to cover the side surface.

Inside the fixed valve 56, a negative pressure space a1 and an atmosphere open space a2 are formed. The two space portions a1, a2 are curved in an arc shape in the rotation direction of the

rotary cylinders

47, 48, 49, respectively, and open to the opposite side facing the side surface on one end side in the axial direction of the

rotary cylinders

47, 48, 49 (see fig. 7).

The negative pressure space portion a1 is formed in a continuous communicable range while the air passages 55C (and the suction holes 55B and the suction portions 55A communicating therewith) whose positions change as the

rotary cylinders

47, 48, 49 rotate in a predetermined direction (the direction of arrows in fig. 6) move from the substantially upper position of the rotary shaft 54 to the substantially lower position. The negative pressure space a1 is connected to a predetermined vacuum valve (not shown) through a through hole 56A formed in the fixed valve 56.

When the vacuum pump is in an operating state, air in the negative pressure space a1 is sucked through the through hole 56A, and the inside of the negative pressure space a1 is constantly evacuated (a state where negative pressure is supplied). Further, the ventilation path 55C at the predetermined position communicating with the negative pressure space a1 is also evacuated as the

rotary cylinders

47, 48, 49 rotate. This allows the tablet 5 received in the suction portion 55A communicating with the air passage 55C to be sucked and attached to each suction portion 55A.

The tablet 5 sucked to the suction portion 55A in this manner is held by the suction portion 55A without falling off from the suction portion 55A while moving from substantially the vicinity immediately above the rotation shaft 54 to substantially the vicinity immediately below the

rotation shaft

47, 48, 49 in accordance with the rotation of the

rotation cylinder

47, 48, 49.

The atmosphere open space a2 is formed in a continuous and communicable range while the air passages 55C (and the suction holes 55B and the suction portions 55A communicating therewith) that change in position as the

rotary cylinders

47, 48, 49 rotate in a predetermined direction (the direction of arrows in fig. 6) move from a position substantially immediately below the rotary shaft 54 to a substantially straight position. The atmosphere open space a2 is normally open to the atmosphere through a through hole 56B formed in the fixed valve 56.

Under the above-described conditions, the 1 st rotary cylinder 47, the 2 nd rotary cylinder 48, and the 3 rd rotary cylinder 49 are disposed in such a manner as to be adjacent to each other in the vertical direction. The 3 rd rotary drum 49 is provided so as to be close to the container film 3 which is horizontally conveyed.

The 1 st rotary cylinder 47, the 2 nd rotary cylinder 48, and the 3 rd rotary cylinder 49 are driven and controlled by the controller 71 in such a manner that: the respective films are continuously rotated at the same rotational speed in a predetermined direction (arrow direction in fig. 6) at ordinary times so as to be synchronized with the conveying operation of the container film 3 of the PTP packaging machine 10. In the present embodiment, on the paper surface of fig. 6, the 1 st rotary cylinder 47 and the 3 rd rotary cylinder 49 continuously rotate in the counterclockwise direction, and the 2 nd rotary cylinder 48 continuously rotates in the clockwise direction.

Encoders, not shown, are provided in the 1 st rotary drum 47, the 2 nd rotary drum 48, and the 3 rd rotary drum 49, respectively, and signals relating to the rotation angle are output from the encoders to the controller 71 at predetermined time intervals. Accordingly, the controller 71 can grasp the rotational positions of the 1 st rotary cylinder 47, the 2 nd rotary cylinder 48, and the 3 rd rotary cylinder 49, and further, the position of the tablet 5 sucked, conveyed, and conveyed.

Further, the 3 rd position P3, which is located directly below the 1 st rotating cylinder 47 and directly above the 2 nd rotating cylinder 48, is set as follows: the timing when the suction portion 55A of the 1 st rotary cylinder 47 passes coincides with the timing when the suction portion 55A of the 2 nd rotary cylinder 48 passes.

Similarly, the 4 th position P4 located at the position directly below the 2 nd rotary cylinder 48 and at the position directly above the 3 rd rotary cylinder 49 is set in such a manner that: the timing at which suction portion 55A of 2 nd rotary cylinder 48 passes coincides with the timing at which suction portion 55A of 3 rd rotary cylinder 49 passes.

Further, the 6 th position P6 located immediately below the 3 rd rotary cylinder 49 is set as follows: the timing when the suction portion 55A of the 3 rd rotary cylinder 49 passes coincides with the timing when the bag portion 2 of the container film 3 passes.

The imaging device 51 will be explained below. In the present embodiment, the imaging device 51 employs a CCD camera. Obviously, the present invention is not limited to this, and a CMOS camera may be used.

The imaging range of the imaging device 51 is a range in which 5 tablets 5 (suction portions 55A) arranged in the axial direction of the 1 st rotary cylinder 47 can be imaged at a time. Instead of this, an imaging mechanism (camera) may be provided for each of the 5 tablets 5 (suction portions 55A) arranged in parallel in the axial direction of each of the

rotary cylinders

47, 48, 49.

The imaging device 51 images the surface (non-suction surface) side that is not sucked by the suction portion 55A of the tablet 5 sucked and conveyed by the 1 st rotary drum 47. Further, as described later, since the printed portion 5J is formed on the side of the tablet 5 on which the imaging device 51 is to be imaged, the imaging device 51 images the outer surface 5B side of the tablet 5. The image data obtained by the imaging device 51 is input to the controller 71.

Next, the printing device 61 will be explained. The printing device 61 is a known tablet printing device that can print the tablets 5 in a non-contact manner by using print heads of predetermined ink jet systems (for example, piezoelectric system and thermal system). According to the printing apparatus 61, droplets of edible ink can be ejected from a plurality of nozzles provided in a print head, and identification information such as characters and symbols can be printed on the tablet 5.

The printing device 61 is provided at a 5 th position P5 located at a lateral position of the 3 rd rotary cylinder 49, and has 5 printing heads corresponding to 5 suction portions 55A (tablets 5) arranged in the axial direction of the 3 rd rotary cylinder 49. The printing device 61 performs suction conveyance toward the tablets 5 passing through the 3 rd rotary cylinder 49 and passing through the 5 th position P5, and performs ink ejection from the print heads to perform printing in a non-contact manner. The printing object of the printing device 61 is the surface side of the tablet 5 that constitutes the imaging object of the imaging device 51.

The controller 71 includes a CPU as an arithmetic mechanism, a ROM that stores various programs, a RAM that temporarily stores various data, a storage medium (e.g., a hard disk or the like) for storing information for a long period of time, and the like. The controller 71 executes a predetermined program by the CPU to perform control processing relating to each mechanism section of the tablet filling apparatus 21 such as the printing apparatus 61.

In the present embodiment, the storage medium registers 180 degrees of print data, which is rotated once every time when the orientation of a print pattern such as a character or a numeral is in the range of 0 to 179 degrees. The controller 71 controls the operation of the printing apparatus 61 based on the registered print data and the image data obtained by the imaging apparatus 51.

Specifically, the controller 71 obtains information (referred to as "position angle information") concerning the position and orientation of the recess 5F from the obtained image data. The positional angle information includes information such as the amount of displacement in the X direction and the Y direction along the center of the concave portion 5F with respect to a predetermined reference position, and the inclination angle of the concave portion 5F with respect to a predetermined reference line. In this regard, the controller 71 sets the printing conditions of the printing device 61 based on the acquired position angle information, respectively.

That is, the controller 71 selects data suitable for the inclination angle in the acquired position angle information from the plurality of print data registered in the storage medium. For example, when the inclination angle is 90 degrees, the controller 71 selects data rotated by 90 ° with respect to the orientation of a print pattern such as a character or a number from the plurality of print data.

Further, the controller 71 determines the printing position based on the misalignment amount in the obtained position angle information. For example, the controller 71 determines a position shifted from a predetermined normal printing position by an amount corresponding to the shift amount as the printing position. Next, the controller 71 sets the selected print data and the determined print position as the print conditions.

In this regard, the controller 71 controls the printing device 61 to print inside the recess 5F based on the set printing conditions. This allows the printed portion 5J to be accurately formed at a predetermined position inside the recess 5F in the tablet 5.

Next, the process (method) for producing the PTP sheet 1 will be described with reference to the flowchart of fig. 11, focusing on the filling step of filling the tablet 5 in the bag portion 2 of the container film 3.

First, in the bag portion forming step of step S1, the bag portion 2 is formed in order by the bag portion forming device 16 with respect to the container film 3 that is relatively flexible by the heating device 15.

Next, in the filling step of step S2, the formed pocket 2 is filled with the tablet 5. In the filling step S2, first, the over-shutter 46A is opened and closed at a predetermined timing when the empty suction portion 55A moving along with the rotation of the 1 st rotary cylinder 47 reaches the predetermined 1 st position P1 (see fig. 6). The 1 st position P1 is a position corresponding to a position where the tablet 5 falls from the feeding section 46.

By the opening and closing operation of the

shutter

46A, 1 tablet 5 falls from the supply and dispensing unit 46 and is received in the suction unit 55A moved to the 1 st position P1. At this time, the vent passage 55C of the suction portion 55A in which the tablet 5 is received communicates with the negative pressure space portion a1, and therefore the tablet 5 is sucked and held. As a result, the 1 st conveying step of step S21, that is, the step of conveying the tablet 5 while sucking the tablet 5 by the 1 st rotary drum 47, is started.

Further, if 1 tablet 5 drops in the supply dispenser 46, the tablet 5 placed thereon falls down to the lower opening portion, and the drop is stopped by the shutter 46A. One surface of the tablet 5 sucked and received by the suction and reception section 55A constitutes a "suction surface", and the other surface of the tablet 5 facing the outside of the 1 st rotary cylinder 47 constitutes a "non-suction surface".

Then, in the imaging step of step S22, the imaging device 51 is operated at a predetermined timing when the tablet 5 sucked and conveyed by the rotary drum 47 reaches the predetermined 2 nd position P2 (see fig. 6). Thereby, the imaging device 51 performs the imaging of the non-suction surface of the tablet 5 which is sucked and conveyed by the 1 st rotary cylinder 47 and passes through the 2 nd position P2. Image data obtained by image capturing is input to the controller 71.

Further, when the tablet 5 imaged by the imaging device 51 is further conveyed with the rotation of the 1 st rotary drum 47 and reaches the 3 rd position P3 which is located directly below the 1 st rotary drum 47 and directly above the 2 nd rotary drum 48, the air passage 55C of the suction portion 55A which sucks the tablet 5 is in a state of communicating with the atmosphere open space portion a 2. As a result, the suction holding of the tablet 5 is released. Thereby, the tablet 5 falls from the suction portion 55A of the 1 st rotary drum 47, and is transferred to the suction portion 55A of the 2 nd rotary drum 48 located at the 3 rd position P3.

At this time, the air passage 55C of the suction portion 55A of the 2 nd rotary cylinder 48 receiving the tablet 5 is in a state of communicating with the negative pressure space portion a1, and thus the tablet 5 is in a state of being sucked and held. As a result, the 2 nd conveying step of step S23, i.e., the step of conveying the tablet 5 while sucking the tablet 5 by the 2 nd rotary drum 48, is started.

In the transfer from the 1 st rotary drum 47 to the 2 nd rotary drum 48, the tablets 5 are hardly rotated or tilted, and are transferred in substantially the same posture. Further, by passing the tablet 5 from the 1 st rotary drum 47 to the 2 nd rotary drum 48, the tablet 5 is in a state where the inner and outer surfaces thereof are reversed.

Subsequently, when the tablet 5 transferred to the 2 nd rotary drum 48 is further conveyed with the rotation of the 2 nd rotary drum 48 and reaches the 4 th position P4 which is located at the position directly below the 2 nd rotary drum 48 and at the position directly above the 3 rd rotary drum 49, the air passage 55C of the suction portion 55A which suctions and holds the tablet 5 communicates with the atmosphere open space portion a2, and the suction and holding of the tablet 5 is released.

Thereby, the tablet 5 falls from the suction portion 55A of the 2 nd rotary drum 48, and is transferred to the suction portion 55A of the 3 rd rotary drum 49 located at the 4 th position P4. Further, since the air passage 55C of the suction portion 55A of the 3 rd rotary drum 49 receiving the tablet 5 at the 4 th position P4 is in a state of communicating with the negative pressure space portion a1, the tablet 5 is sucked and held. As a result, the 3 rd conveying step of step S24, that is, the step of conveying the tablet 5 while sucking the tablet 5 by the 3 rd rotary drum 49, is started.

In addition, when the tablet 5 is transferred from the 2 nd rotary drum 48 to the 3 rd rotary drum 49, the tablet 5 hardly rotates or tilts, and the tablet 5 is transferred in substantially the same posture. Thus, the orientation and position of the recess 5F on the non-suction surface side when the 1 st tablet 5 is conveyed by the 1 st rotary cylinder 47 are substantially the same as the orientation and position of the recess 5F on the non-suction surface side when the 3 rd rotary cylinder 49 is conveyed. As in the above case, the tablet 5 is transferred from the 2 nd rotary drum 48 to the 3 rd rotary drum 49, and the inner and outer surfaces of the tablet 5 are reversed.

Next, the printing step of step S25 is performed. That is, the tablet 5 is further conveyed in accordance with the rotation of the 3 rd rotary cylinder 49, and when the predetermined timing at the 5 th position P5 is reached, the printing device 61 is operated in accordance with the printing conditions set by the controller 71. Thereby, printing is performed inside the concave portion 5F of the non-suction surface of the tablet 5 passing through the 5 th position P5, and the printed portion 5J is formed.

The controller 71 sets the printing conditions mainly based on the image data obtained by the 1 st imaging device 51. As described above, the orientation and position of the recess 5F on the non-suction surface side are substantially the same for 1 tablet 5 in the conveyance of the 1 st rotary drum 47 and the conveyance of the 3 rd rotary drum 49. Thus, by using the printing conditions based on the image data obtained by the imaging device 51, printing can be performed in accordance with the orientation or position, inner and outer surfaces of the concave portion 5F in the tablet 5 conveyed by the 3 rd rotary drum 49, and an appropriate printing portion 5J can be formed.

Then, the tablet 5 sucked and held by the suction portion 55A moves to the 6 th position P6 located immediately below the 3 rd rotary drum 49 in accordance with the rotation of the 3 rd rotary drum 49.

Next, the tablet loading step of step S26 is performed. That is, if the tablet 5 sucked and held by the suction portion 55A reaches the 6 th position P6, a part of the tablet 5 protruding from the outer peripheral surface of the 3 rd rotary cylinder 49 enters the bag portion 2 of the container film 3 located at the 6 th position P6. At the same time, the air passage 55C of the suction portion 55A of the 3 rd rotary cylinder 49 sucking and holding the tablet 5 communicates with the atmosphere open space portion a2, and the suction and holding of the tablet 5 is released. Thereby, the tablet 5 falls from the suction portion 55A of the 3 rd rotary drum 49 toward the bag portion 2, and the bag portion 2 is filled with the tablet 5. At this time, the bag 2 is filled with the tablet 5 so that the surface (outer surface 5B) on the side where the printed portion 5J is formed faces the bag 2.

Next to the filling step S2, the mounting step of step S3 is performed. In the mounting step S3, the cover film 4 is mounted on the container film 3 by feeding the container film 3 and the cover film 4 between the above 2 rollers 20, 25, to obtain the PTP film 6.

Next, after the processing by the slit forming device 33 and the imprinter 34 is performed on the PTP film 6, the dicing step of step S4 is performed, and the manufacturing process of the PTP sheet 1 is completed. In the dicing step S4, the PTP sheet 1 is diced from the PTP film 6 by punching the PTP film 6 by the sheet punching device 37, thereby manufacturing the PTP sheet 1.

As described above in detail, according to the present embodiment, the printed portion 5J formed on the tablet 5 and the bag portion 2 are designed to be in a non-contact relationship with each other in a state where the tablet 5 is filled in the bag portion 2. In addition, in filling step S2, printed portion 5J is formed only on outer surface 5B side of tablet 5, and tablet 5 is filled such that the surface (outer surface 5B) on which printed portion 5J is formed faces bag portion 2. Here, the bag portion 2 is formed of a material having a rigidity higher than that of the cover film 4, and is not deformed by impact, vibration, or the like generated in the manufacturing process. Thus, by designing in such a manner, the printed portion 5J is more reliably prevented from coming into contact with the pocket portion 2. On the other hand, since the printing portion 5J is not formed on the side of the cover film 4 where there is a concern of deformation, rubbing of the printing portion 5J accompanying contact with the cover film 4 does not occur. As a result, it is possible to prevent the printed matter from becoming unclear more reliably, and to effectively suppress the deterioration in the appearance quality of the printing portion 5J.

Further, since the tablet 5 can be filled in the bag portion 2 before the ink is sufficiently dried, it is possible to sufficiently meet the demand for higher tablet conveying speed (filling speed) (for example, 100 or more tablets per second packed), and further, to increase the production speed.

By forming the concave portion 5F in the tablet 5, a relationship in which the printed portion 5J and the bag portion 2 do not contact is formed. Accordingly, the printed portion 5J and the bag portion 2 can be easily formed in a non-contact relationship without particularly designing the shape of the bag portion 2.

The printing device 61 is an ink jet printing device, and the ejected ink may flow due to the influence of wind (air flow), thereby deteriorating the printing quality, but in the present embodiment, since the printing is performed inside the concave portion 5F, the tablet 5 (particularly, the portion where the concave portion is formed) serves as a windshield. This effectively suppresses the occurrence of the above-described inconvenience due to the influence of wind, and can more reliably obtain good print quality.

In addition, according to the present embodiment, the position, orientation, and the like of the concave portion 5F in the tablet 5 constituting the printing object before printing can be grasped from the image data obtained in the imaging step S22, and appropriate printing in accordance with the position, orientation, and the like of the concave portion 5F can be performed by the printing device 61.

Since the recess 5F is not in communication with the side surface 5A, the tablet portion (surrounding the entire periphery of the bottom wall surface of the recess 5F) is present around the entire periphery of the recess 5F. This makes it extremely difficult for the printed portion 5J to come into contact with the pocket portion 2, and thus, the reduction in the quality of the appearance of the printed portion 5J can be more effectively suppressed. Further, the function of the damper of the tablet portion around the recess 5F is more effectively exhibited, and occurrence of defective printing due to the influence of wind can be more reliably prevented.

The present invention is not limited to the description of the above embodiments, and may be implemented as follows, for example. Obviously, other application examples and modification examples not listed below are of course possible.

(a) In the above embodiment, the printed portion 5J is formed inside the recess portion 5F, and the printed portion 5J formed in the tablet 5 is designed so as not to contact the pocket portion 2 filled with the tablet 5. For example, the configuration of the pocket portion 2 may be designed so as to form such a relationship by a method of designing the configuration of the pocket portion 2 such as a method described in JP kokai publication No. 55-1655 (a method of providing an auxiliary pocket portion smaller than the tablet 5 in the pocket portion 2 and making the auxiliary pocket portion face the printed surface). In this case, the effect of the present invention can be achieved although the recess 5F is not formed in the tablet 5. Obviously, both the tablet 5 and the bag 2 may be designed to have the above-described relationship.

(b) In the above embodiment, the tablet 5 is exemplified by a disc-shaped bare chip (disc-shaped flat chip) having a circular plane, but the type, shape, and the like of the tablet are not limited to the above embodiment. For example, the tablet is not limited to a medicine, and obviously includes a tablet for diet and the like. The tablet includes not only a bare tablet but also a sugar-coated tablet, a plated film, an intraoral destruction tablet, an enteric-coated tablet, a gelatin-coated tablet, and various capsule tablets such as a hard capsule and a soft capsule. The shape of the tablet may be, for example, not only a circular shape in plan view, but also a polygonal shape in plan view, an elliptical shape in plan view, an oblong shape in plan view, and the like.

(c) The arrangement and number of the pockets 2 in the PTP sheet 1 are not limited to the above-described embodiment (2 rows, 10), but PTP sheets having various arrangements and numbers, such as a type having 3 rows and 12 pockets, are used.

In the above embodiment, the PTP film 6 has a structure in which the number of the bag portions 2 corresponding to 1 sheet is arranged in the width direction, but the invention is not limited to this, and for example, a structure in which the number of the bag portions 2 corresponding to a plurality of sheets is arranged in the width direction may be employed.

(d) The structure of the conveying mechanism of the tablet 5 is not limited to the above embodiment. For example, in the above embodiment, the conveying mechanism is a cylindrical rotary drum 47 or the like, but the present invention is not limited thereto, and for example, an endless conveying belt or the like may be used.

In the above embodiment, the tapered portion 5D or the tapered portion 5E of the tablet 5 is configured to contact the inner peripheral surface of the suction portion 55A in a state where the tablet 5 is sucked and held by the suction portion 55A, but may be configured to contact the inner peripheral surface of the suction portion 55A at a portion other than the portion where the recess 5F is formed in the outer surface 5B or the inner surface 5C of the tablet 5.

(e) In the above embodiment, the concave portions 5F are opened on the respective outer surface 5B side and inner surface 5C side, but the concave portions 5F may be opened only on one of the outer surface 5B side and inner surface 5C side. In this case, for example, the direction of the tablets 5 arranged in the supply dispenser 46 may be made uniform.

When the recesses 5F are opened on the outer surface 5B side and the inner surface 5C side, the number, shape, and the like of the recesses 5F may be different between the outer surface 5B side and the inner surface 5C side. In this case, the number and arrangement of the imaging devices 51 and the printing devices 61 can be appropriately changed.

The shape of the recess 5F is not limited to a rectangular shape in plan view, and may be appropriately changed. For example, the concave portion may have a circular shape when viewed from the plane, an elliptical shape when viewed from the plane, a polygonal shape when viewed from the plane, or the like. Further, the bottom wall surface of the recess of the tablet 5 may be formed in a slanted surface shape or a curved surface shape.

In addition, when the concave portions are formed on the outer surface 5B side and the inner surface 5C side, the positional relationship between the concave portions on the outer surface 5B side and the concave portions on the inner surface 5C side may be appropriately changed. For example, the concave portion on the outer surface 5B side and the concave portion on the inner surface 5C side may be configured so as not to overlap each other in a planar view. In this case, excessive thinning of the tablet 5 can be prevented, and breakage of the tablet 5 during filling or the like can be prevented.

(f) In the above embodiment, the imaging device 51 is provided corresponding to the 1 st rotating cylinder 47, but may be configured as follows: the imaging device 51 is provided corresponding to the 3 rd rotary cylinder 49 (for example, between the 4 th position P4 and the 5 th position P5), and the imaging device 51 images the tablet 5 located upstream of the printing device 61. In addition, the following structure can be adopted: the 1 st rotary drum 47 and the 2 nd rotary drum 48 are omitted, and the tablet 5 is supplied from the supply dispenser 46 to the 3 rd rotary drum 49.

When the concave portion 5F formed in the outer surface 5B and the concave portion formed in the inner surface 5C are formed in a predetermined positional relationship, the side of the tablet 5 opposite to the side constituting the printing object may be imaged, and the printing conditions for printing in the concave portion 5F may be set based on the obtained image data.

Description of reference numerals:

reference numeral 1 denotes a PTP slice;

reference numeral 2 denotes a bag portion;

reference numeral 3 denotes a container film;

reference numeral 4 denotes a mask film;

reference numeral 5 denotes a tablet;

reference numeral 5A denotes a side face;

reference numeral 5B denotes an outer face;

reference numeral 5C denotes an inner face;

reference numeral 5F denotes a concave portion;

reference numeral 5J denotes a printing portion;

reference numeral 6 denotes a PTP membrane;

reference numeral 61 denotes a printing device (ink jet printing device);

symbol S1 denotes a bag portion forming step;

symbol S2 denotes a padding step;

symbol S3 denotes a mounting step.

Symbol S4 denotes a slicing step.

Claims

1. A method for manufacturing a PTP sheet, in which a tablet is received in a bag portion formed in a container film, and a cover film is attached to the container film so as to close the bag portion, the method comprising:

a filling step of filling the pocket with the tablet;

the printed portion formed on the tablet and the bag portion are not in contact with each other in a state where the tablet is filled in the bag portion.

2. A PTP sheet manufacturing method according to claim 1, wherein a concave portion is formed in advance in the sheet, and the printed portion is formed inside the concave portion in the filling step, whereby the printed portion and the bag portion are not in contact with each other.

3. A method of manufacturing a PTP tablet according to claim 2, characterized in that the filling step includes a step of obtaining image data by imaging a surface of the tablet on which at least the recess is formed;

4. A method of manufacturing a PTP tablet according to claim 2 or 3, wherein the recess is in a state of non-communication with a side surface of the tablet.

5. A PTP sheet in which a tablet is received in a pocket portion formed in a container film, and a cover film is attached to the container film so as to close the pocket portion, characterized in that:

6. A PTP sheet according to claim 5, wherein the tablet includes a recess, and the printed portion is formed inside the recess, whereby the printed portion formed in the tablet and the pocket portion filled with the tablet do not contact each other.