JP2003205994A - Powder and granule storage bag, method for using the same, and method for manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a powder and granule storage bag, a method for using the same, and a method for manufacturing the same, which eliminate constraints to a storage space by virtue of a simple structure, enable, for example, the storage of powder and granules in the bag by surely preventing the generation of dust, and allow the easy sampling of the powder and the granules housed inside. <P>SOLUTION: Cylindrical sleeves 11 and 12, whose inside spaces continue into each other and whose tips 11a and 12a are sealed, are provided in the bag 10 whose opening 10a is closed with one 25 of pieces into which a split valve 13 is provided. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bag for storing powders and granules used for transporting various powders and granules, and more particularly, to a bag for storing powders or granules which are harmful due to aseptic powder or dust. The present invention relates to a suitable bag for storing granules, a method for using the same, and a method for manufacturing the same.

[0002]

2. Description of the Related Art Generally, in a manufacturing plant for various powders or granules, it is necessary to temporarily store the manufactured powders or granules in a bag and convey them to a receiving side such as an ordering party. In such a case, as shown in FIG. 10, the granular material stored in the discharge hopper 1 of a manufacturing machine such as a dryer or a sieving machine, which is generally the final step, is provided below the discharge hopper 1. The valve 2 is opened, and the cutting device 4 such as a screw feeder driven by the motor 3 transfers it to the discharge port side, and the transfer device is installed on the weighing device 5 such as a load cell so that the upper end opening 6a is the discharge port of the cutting device 4. A method of inserting a predetermined amount into the storage bag 6 facing the above is adopted.

[0003]

By the way, in the conventional storage bag 6 described above, when the powder or granules are put into the bag 6 through the discharge port of the cutting device 4, dust is prevented from the opening 6a. I can't. Therefore, although there is no problem when used to store harmless powders such as cement, sterile powders such as aseptic powder for injections and highly effective powders, which may adversely affect health. It cannot be used when handling granular particles with properties or dust particles or surrounding particles due to dust explosion or airborne floating.

For this reason, when taking out the particulates which are averse to contamination due to the above-mentioned dust generation or dust from the outside, contamination by foreign bacteria, etc., in general, in a facility isolated from the surroundings of an isolator, etc. The powdery particles are stored in the storage bag. However,
In the method of storing powders and granules in a bag using equipment isolated from the surroundings such as an isolator, it is necessary to keep the inside of the equipment in a highly clean room environment, and as a result, the equipment cost as a whole. However, the storage space is limited because the equipment is expensive and the equipment cannot be easily transported.

Therefore, as a conventional storing method for storing the above-mentioned powdery particles in a bag in a closed system, as shown in FIG. 11, a cutting device such as a screw feeder for discharging the powdery particles stored in the discharge popper 1 is used. 4, a hopper 7 is provided on the discharge port side, and the hopper 7 and the upper opening 8a of the storage bag 8 are
Upper side 9a and lower side 9b of split valve 9 respectively
By attaching a predetermined amount of the granular material in the hopper 7 into the storage bag 8 via the split valve 9 and then separating the split valve 9 between the upper side 9a and the lower side 9b,
A method is known in which the lower opening of the hopper 7 and the upper opening 8a of the storage bag 8 are closed by the valve bodies divided into the upper side 9a and the lower side 9b.

[0006] According to such a method for accommodating powder or granules, it is possible to reliably prevent dust generation or contamination with a simple structure and to store the powder or granules in the accommodating bag, and Even during transportation, there is no possibility that the powder or granular material will be scattered from the storage bag to the outside. However, in the above storage method, when it is necessary to collect a part of the powder or granules in the storage bag as a sample after the storage in the storage bag 8 for quality control or the like, the upper end opening 8a It is necessary to open the valve element of the split valve 9 attached to the above, and at this time, there is a problem that dust is generated by the powder particles inside and dust is mixed from the outside, and contaminants are generated.

[0007] In addition, when the storage bag 8 is carried from the manufacturing side to the receiving side such as the ordering side, the receiving side often needs a sample of the powder or granular material, so that it is separately manufactured in a manufacturing factory. Since it is necessary to collect the sample and attach it to the storage bag 8, extra labor is required, and dust or contamination may similarly occur when the sample is collected. Moreover, on the receiving side, since the storage bag 8 and the sample are separate bodies, there is a problem in that the identity with the powder or granular material in the storage bag cannot be ensured.

The present invention has been made in view of the above circumstances, has a simple structure, does not cause a restriction on a storage place, and reliably generates dust or is contaminated by dust from the outside, contamination by germs and the like. It is possible to store the powder and granules in a bag while preventing nation, and to easily sample the powder and granules stored inside, as well as a method of use and manufacture thereof. It is intended to provide a method.

[0009]

According to a first aspect of the present invention, there is provided a powdery or granular material storage bag according to the present invention, wherein the opening is closed by one of the split valves, and the internal space is inside the bag. And a cylindrical sleeve portion having a tip end portion sealed therein. Here, with the split valve, a valve body that opens and closes the flow path of the granular material is incorporated in the valve body, and the valve body and the valve body are configured to be separable, and after being divided, they are divided. The flow path of the valve body is sealed by the divided valve bodies.

The invention described in claim 2 is the same as claim 1.
A plurality of sleeve portions according to claim 3 are provided in the bag, and the invention according to claim 3 further comprises:
A measuring tool is stored in the sleeve portion according to claim 1 or 2.

Next, a method of using the bag for storing powder and granules according to the present invention as set forth in claim 4, wherein the sleeve portion of the bag for storing powder and granules according to any one of claims 1 to 3 is provided with the powder particles. It is characterized in that it is used for sampling of the powder or granules on the receiving side of the powder or granules stored in the body storage bag.

Further, in the method of manufacturing a bag for storing powder and granules according to the present invention as defined in claim 5, a bag having an opening is provided, one end of which is continuous with the bag, the internal space is continuous, and the end is After manufacturing a bag in which at least one tubular sleeve part that has been sealed is integrated, the measuring tool is stored in the sleeve part from the opening part, and one split valve is attached to the opening part. And is performed.

In this case, the invention according to claim 6 is characterized in that the steps after the production of the bag are performed in a clean room. Further, the invention according to claim 7 is characterized in that, in the invention according to claim 5 or 6, after the divided one of the split valves is attached to the opening, a sterilization process is performed.

In the bag for storing powder particles according to any one of claims 1 to 3, since the opening of the bag for storing the powder particles is closed by the split one of the split valves, In the case of putting the above-mentioned powder or granules in, the other divided split valve is attached to the powder or granular material discharge port of the discharging device such as the hopper on the manufacturing device side, and the both are integrated to open the split valve. In the state of being sealed from the surroundings, the powder or granules in the discharge device can be stored in the storage bag without generating dust or mixing of dust from the outside or bacteria.

In addition, the bag is provided with a cylindrical sleeve portion having a continuous inner space and a sealed tip portion, so that the sleeve portion is turned over from the outside of the tip portion while the hand is placed inside the bag. After inserting and grasping the stored powder and granules over the sleeve, pull the hand again toward the tip of the sleeve to move the powder and granular material in the bag into the sleeve as a sample, and then the sleeve. By closing the middle part of the part and cutting the lower part of the closed part, dust in the bag is not generated, and dust in the bag is not mixed with external dust or germs in the bag. It becomes possible to sample the particles. It should be noted that the sample itself of the sleeve portion is formed by forming a closed portion at two places of the intermediate portion and cutting between them, or by forming one closed portion relatively long and cutting the center of the closed portion. It is also possible to prevent dust from being generated, and to prevent contamination such as dust and germs from the outside from being mixed into the sample.

At this time, as in the invention described in claim 2, if a plurality of sleeves are provided on the bag, the bag can be used for samples for various purposes such as acceptance inspection, shipment inspection, storage, etc. Part of the powder or granules in the storage bag can be separately collected. Furthermore, if at least one sleeve is provided in advance, it becomes possible to use the powdery granules on the receiving side of the powdery granules, as in the invention according to claim 4. As a result, at the manufacturing plant, it is not necessary to separately collect a sample for the receiving side and attach it separately to the package of the powder, and also on the receiving side, expose the powder or granules in the storage bag to the outside. Without, one can confirm their identities.

According to the third aspect of the invention, since the measuring tool such as a measuring cup or a scoop is stored in the sleeve, the measuring tool is grasped from the outside of the tip end over the sleeve, Similarly, while turning over the sleeve part, insert the above-mentioned measuring tool into the bag, store the powdered and granular material in the measuring tool, and then pull out the gripped measuring tool toward the tip of the sleeve part again. By moving to the inside of the unit, it becomes possible to reliably collect the required predetermined amount of powder or granular material as a sample.

Next, according to the method of manufacturing a bag for storing powder and granules according to the present invention of claim 5, after manufacturing a bag in which sleeves are integrated, the measuring tool is stored in the sleeves. Since the above-mentioned storage bag is attached to the split valve, it is easy to manufacture a bag in which the sleeves are integrated, and there are wide choices for the method of attaching the sleeves to the powder or granular material storage bag. Can be easily attached.

In particular, as in the invention described in claim 6, the above manufacturing process is performed in a clean room, and
If the final sterilization treatment is performed as in the invention described in (3), it is suitable for storing sterile powders such as powders for injection and powders having a strong medicinal effect. Here, the clean room includes Class 1 to Class 5 of JIS B9920 (corresponding to Class 1 to Class 100 of US standard FED Std-209E), that is, 3500 fine particles having a particle size of 0.5 μm or more per 1 m ^3. Less than, more preferably J
IS B9920 Class 4 (US standard FED St
Class 10) or less in d-209E, that is, 0.
It is preferable that the number of fine particles having a particle size of 5 μm or more is less than 350 per 1 m ³ .

[0020]

1 to 6 show one embodiment of a bag for storing powder and granules according to the present invention and a method of using the bag, wherein reference numeral 10 in the drawing is a bag for storing powder and granules. . This bag 10 is a bag-shaped member having an opening 10a at the upper end,
Molded with a transparent or semi-transparent or opaque single or composite film of polyethylene, polypropylene, polyamide, etc. having a thickness of 0.05 mm to 0.2 mm, or polyethylene, polypropylene, polyamide, etc. inside a support material such as cloth It is formed by coating the resin of. And on the side of this bag 10, two sleeves 1
One end side of each of 1 and 12 is integrally welded or joined by means such as coating after sewing. The sleeves 11 and 12 and the bag 10 may be integrally molded. The sleeve portions 11 and 12 are tubular and are made of the same material as the bag 10.
While being continuous with the inside, the other end side tip portions 11a, 12a
Is sealed. The tubular shape of the sleeve portions 11 and 12 is not limited to the cylindrical shape, and may be another tubular shape such as an ellipse or a polygon.

The opening 10a of the bag 10 is closed by the divided passive-side main body 25 of the split valve 13 attached to the opening 10a. Here, the structure of the split valve 13 will be described. As shown in FIG. 3, the split valve 13 has a flow path 14 for powder particles formed in a valve body made of a metal having a substantially cylindrical appearance. A synthetic resin sheet portion 15 is formed on the inner wall of the central portion of the flow passage 14, and the flow passage 14 is formed in the sheet portion 15.
It is a butterfly valve in which a substantially disc-shaped metal valve element 16 for opening and closing is installed rotatably.

The valve body 16 has an outer peripheral portion to which one end of a drive shaft 17 for rotating the valve body 16 is fixed.
This drive shaft 17 is provided on the outer peripheral portion and 180
The outer peripheral portions facing each other are rotatably supported by a shaft 19 rotatably supported by a bearing 18 in the valve body. The other end of the drive shaft 17 is connected to the gearbox 20.
It is adapted to be rotated inside via a gear (not shown) by rotating the operation handle 21.

The valve body and the valve body 16 are dividable in the direction orthogonal to the flow passage 14. That is, the valve body 16 is the active side valve body 1 integrated with the drive shaft 17 in the direction orthogonal to the flow path 14.
6a and a passive side valve body 16b, and the magnets 22 and 23 are respectively provided on the facing surfaces of the active side valve body 16a and the passive side valve body 16b.
Is fixed.

On the other hand, the valve main body is also divided into an active side main body 24 and a passive side main body 25 at a position which substantially coincides with the dividing surface of the valve body 16. Then, on the outer periphery of the facing portion between the active side body 24 and the passive side body 25,
Collar portions 24a and 25a are formed, respectively, and a metallic band 2 that integrates the active-side main body 24 and the passive-side main body 25 on the outer periphery of these collar portions 24a and 25a.
6 is detachably provided. Furthermore, the outer peripheral surface of the passive-side valve body 16b and the inner peripheral surface of the passive-side main body 25 that faces the outer peripheral surface of the passive-side valve body 16b are each formed by a part of a spherical surface, and the inner peripheral surface of the passive-side main body 25 is magnetized. There is. As a result, the passive-side valve element 16b is held by the passive-side main plate 25 so as not to be opened during division.

The active-side main body 24 is provided with a hopper 30 provided at the discharge portion of a powdery or granular material manufacturing apparatus (not shown).
It is fixed to. On the other hand, the passive-side main body 25 is formed to have a size of, for example, 4 inches (150 A), and a mounting tube portion 27 made of synthetic resin is fixed by a metal band 28. The mounting cylinder portion 27 is inserted into the opening 10a of the bag 10 and is fixed to the bag 10 by tightening the metal band 31 from the outer peripheral side of the protrusion 27a. Furthermore, in at least one of the sleeve portions 11 of the bag 10, for example, 30 to 30 necessary for sampling is provided.
A measuring cup (measuring tool) 29 having a capacity of 200 g is stored.

Next, an explanation will be given of a method for producing a powdery or granular material storage bag having the above-mentioned constitution and suitable for storing a powdery or granular material storage bag for storing aseptic powdery or granular materials.
Class 1 to Class 100 in Std-209E,
Preferably, in a clean room of class 10 or lower, the bag 10 having the opening 10a, one end of the bag 10 is continuous, the internal space is continuous, and the tip 11 is continuous.
A bag in which two tubular sleeve portions 11 and 12 in which a and 12a are sealed are integrated is manufactured. After that, the opening 1 of the bag 10
The measuring cup 29 is stored in the sleeve portion 11 from 0a.
Next, the mounting cylinder 27 is fixed to the passive body 25 in which the passive valve body 16b of the split valve 13 is closed, and the mounting cylinder 27 is inserted into the opening 10a of the bag 10 and fixed.

As another procedure different from this procedure,
In the clean room, the bag 10 having the opening 10a has two cylindrical sleeves 1 which are continuous at one end and have a continuous inner space, and are sealed at the tips 11a and 12a.
After manufacturing the bag in which 1 and 12 are integrated, the mounting cylinder portion 27 is fixed to the passive-side main body 25 in which the passive-side valve body 16b of the split valve 13 is closed.
7 may be inserted and fixed in the opening 10a of the bag 10, and then the active side main body 24 may be attached to the passive side main body 25 to open the valve 16, and the measuring cup 29 may be housed in the sleeve 11 from there. . Furthermore, the two tubular sleeve portions 11 and 12
After making a bag that integrates and
With the active-side main body 24 attached to the passive-side main body 25, the mounting tubular portion 27 is fixed, and the mounting tubular portion 27 is inserted into the opening 10a of the bag 10 and fixed, and the opened valve 1 is opened.
The measuring cup 29 may be stored in the sleeve portion 11 from the position of 6.

In any case, when the bag in which the sleeve portions 11 and 12 are integrated is attached to the passive side main body 25 and the measuring cup 29 is housed in the sleeve portion 11, the bag 10 described above is provided. After folding the sleeves 11 and 12 into a predetermined shape and storing a transport bag (not shown), a sterility assurance identification table is attached to the surface of the transport bag,
For example, IR radiation dose of 25 kGy (Eur.std.
Perform sterilization treatment by the radiation of EN552). As a result, the surfaces of the bag 10 and the sleeve portions 11 and 12 are classified as class 50.
Sterilized and washed to about (Mil.std.1246C).

In order to store the powder or granules manufactured by the manufacturing facility in the powder or granule storage bag manufactured as described above, first, referring to FIG.
As shown in FIG. 2, the powdery or granular material storage bag shown in FIG. The active side body 24 and the active side body 24 are connected to each other by a metal band 26 to form an integrated split valve 13. Next, by rotating the operation handle 21 of the split valve 13, as shown in FIG. 4, the valve body 16 integrated by the magnets 22 and 23 is rotated to open the flow path 14. As a result, the powder or granular material in the hopper 30 is stored in the bag 10.

Then, after a predetermined amount of powder or granules is filled in the storage bag 10, the operating handle 21 is rotated in the reverse direction so that the valve body 1
6 is closed, the metal band 26 is further removed, the split valve 13 is divided, and the passive side main body 25 is removed from the active side main body 24 together with the bag 10. At this time,
Both the active side main body 24 and the passive side main body 25,
The flow path is sealed by the active-side valve body 16a and the passive-side valve body 16b, which are respectively divided. As a result, the powder or granules in the hopper 30 can be stored in the storage bag in a sealed state with respect to the surroundings without generating dust or mixing of dirt such as dust or germs from the outside.

Next, when collecting a sample of the granular material stored in the storage bag 10, first, as shown in FIG. 5, weigh from the outside of the tip 11a of the sleeve 11 over the sleeve 10. Grasp the cup 29, turn over the sleeve 11, and then the bag 1
The measuring cup 29 is inserted into the 0, and the powdery or granular material P stored therein is stored in the measuring cup 29.

Next, as shown in FIG. 6, the grasped measuring cup 29 is pulled out while inverting the sleeve portion 11 and positioned at the tip portion 11a, and then the sleeve portion 11 is provided with an interval in the middle portion. By winding a tape 32 having a width dimension between two points 11b and 11c, these 11
By collecting between the b and 11c and cutting at the central part of the tape 32, a required amount of the powder P that is reliably required is collected as a sample without being exposed to the environment outside the bag 10. You can In addition, the sleeve portion 11 and the intermediate portion 2
Even if a closed part is formed at several places and the space between them is cut, the sleeve part 1
In addition, it is possible to prevent dust generation from the sample itself and to prevent contamination of the sample with dust, germs and the like from the outside. If dust generation from the sample itself, external dust, and contamination by germs are allowed, the sleeve 11 should be
You may form a closed part in a place and cut it below.

Since the bag 10 is provided with the two sleeve portions 11 and 12, if it is necessary to separately sample a part of the powder or granule for shipping inspection, storage sample, etc. , The other sleeve 12 can do this.
By the way, when the number to be sampled is clear in advance, the bag 10 provided with the number of sleeves corresponding to the sampling number may be manufactured in advance.

Further, when the sample of the powder P is required on the receiving side of the powder P of a pharmaceutical company or the like, the remaining sleeve portion 12 may be used for sampling the powder P. it can. Therefore, it is not necessary to separately collect a sample for the receiving side at the manufacturing plant and attach it to the package of the powder or granules P, and even on the receiving side, the same as the powder or granules P in the storage bag 10. Can be secured. As a result, if there is a problem with the quality of the powder fluid, it is possible to return it to the shipping side without opening the bag 10. In this case, the above request can be easily met by providing the bag 10 with at least one extra sleeve portion for the number of samples required on the manufacturing side in advance. After use, the passive body 25 and the measuring cup 29
With regard to, since it can be removed from the bag 10 and reused, it is excellent in economical efficiency.

In the above embodiment, the sleeve portion 1
Although only the case where the measuring cup 29 is stored in 1 has been described, the present invention is not limited to this, and the measuring cup 29 may not be inserted particularly when the amount of the granular material P to be sampled is not strict. . In this case, the hand is inserted into the bag 10 while the sleeve 11 is being turned over, and the powder particles P stored therein are grasped by the hand over the sleeve 11, and then the hand is again held at the tip 11a of the sleeve 11. By pulling out to the side and cutting the middle portion of the sleeve portion 11 in the same manner as shown in FIG. 6,
Similarly, the powder particles P in the bag 10 can be sampled without generating dust.

Further, in the above embodiment, the bag 10
The case where the passive side main body 25 is attached to the whole body and then the whole body is sterilized by radiation has been described, but the present invention is not limited to this, and the type of powder or granules to be housed inside or the bag 10 is stored. Other sterilization treatments such as ETO (ethylene oxide) sterilization and steam sterilization may be applied depending on the conditions such as the material.

Furthermore, regarding the structure of the split valve,
The present invention is not limited to the split valve 13, but a valve body that opens and closes the flow path of the granular material is incorporated in the valve body, and the valve body and the valve body are configured to be separable, and after being divided. Can use various types of split valves as long as the divided flow passages of the valve body are sealed by the divided valve bodies. For example, the split valve 40 shown in FIGS. 7 to 9 can also be applied. This split valve 40 also has a flow path 41 of powder particles formed in a valve body made of a metal having a substantially cylindrical appearance, and a seat ring 42 is fitted to the inner wall of the central portion of the flow path 41. It is a butterfly valve in which a substantially disc-shaped valve body 43 that opens and closes the flow path 41 is rotatably incorporated in the seat portion 42.

A drive shaft 44 for rotating the valve body 43 is fixed to the outer peripheral portion of the valve body 43.
An outer peripheral portion that is diametrically opposed to 4 is rotatably supported by a shaft provided in the valve body. A handle 45 for rotating the drive shaft 44 is attached to the drive shaft 44. The valve body, the valve body 43, and the drive shaft 44 are configured to be dividable in the direction orthogonal to the flow path 41. That is, the valve body 43 is the active side valve body 43a on the drive shaft 44a side integrated with the handle 45.
And a passive side valve element 43b on the side of the drive shaft 44b. A positioning pin 46 is projected on the split surface of the active side valve element 43a, and a passive side valve element 43b opposite to this is formed. The division surface is provided with a hole into which the alignment pin 46 is fitted.

On the other hand, the valve body and the seat ring 42 are also
The active-side main body 47 and the active-side seat ring 4 are provided at positions substantially corresponding to the split surfaces of the valve element 44.
2a, main body 48 on the passive side, seat ring 4 on the passive side
2b. And the active side body 4
A flange portion 49 is provided on the outer periphery of 7, and a pair of lock pins 50 projecting toward the dividing surface are provided on the flange portion 49 so as to be rotatable by a handle 51. Further, a tightening pin 52 projecting in the diameter direction is provided on the outer periphery of the lock pin 50.

On the other hand, at the outer peripheral portion of the passive side main body 48 and at a position facing the lock pin 50, a flange portion 53 is provided so as to project, and the lock pin 5 is provided at the flange portion 53.
A cylindrical connecting cylinder portion 54 extending toward 0 is integrally provided. A pair of spiral groove portions 55 are formed in the connecting cylinder portion 54.

Split valve 40 having such a structure
7, the connecting cylinder portion 54 of the passive-side main body 48 is made to face the lock pin 50 of the active-side main body 47, and the tightening pin 5 is provided in the groove portion 55 thereof.
Insert 2. Next, when the lock pin 50 is rotated by the handle 51, the passive-side main body 48 is attracted to the active-side main body 47, and the positioning pin 46 of the active-side valve body 43a is fitted in the hole of the passive-side valve body 43b. By doing so, both are integrated as shown by the dotted line in FIG. Then, by rotating the handle 45, the integrated valve body 43 is rotated as shown in FIG. 9, and the flow path 41 is opened and closed.

Further, as shown by the dotted line in FIG.
After the valve body 43 is closed by the valve body 43, the split valve 40 can be divided into the active-side main body 47 and the passive-side main body 48 by performing the above procedure in reverse. Active side body 47
The openings of the passive-side main body 48 and the passive-side main body 48 are divided into the active-side valve body 43a and the passive-side valve body 43, respectively.
It is enclosed by b. Therefore, the active-side main body 47 is fixed to the hopper 30 or the like provided in the discharge part of the powder and granular material manufacturing apparatus, and the passive-side main body 48 is attached to the bag 1.
By fixing the opening portion 10a of No. 0, it is possible to obtain the same effect as that of the above embodiment.

[0043]

As described above, according to the bag for storing powder particles according to any one of claims 1 to 3, the opening of the bag for storing the powder particles is formed by one of the split valves. Since it is blocked, by attaching the divided region of the upper air split valve to the powder and granular material discharge port of the discharge device such as the hopper on the manufacturing device side, by integrating both and opening the split valve, In a sealed state, the powder particle pair in the discharging device can be stored in the storage bag without generating dust or contamination of dust or foreign bacteria from the outside. Since a sealed tubular sleeve is provided, it is possible to use the sleeve in the same manner without generating dust from the bag or mixing foreign matter into external dust, bacteria, etc. Sampling of powder and granules can be performed. Therefore, a remarkable effect is exhibited particularly when used for storing aseptic powders or pharmacologically dangerous powders or for dust prevention.

At this time, in particular, according to the invention described in claim 2, sampling can be performed for each of a plurality of various uses, and as a result, as in the invention described in claim 4, the acceptance of the powdery or granular material can be performed. Also on the side, it can be used for sampling the powder or granular material, and the identity with the powder or granular material in the storage bag can be secured. Further, according to the invention as set forth in claim 3, it becomes possible to reliably collect a predetermined amount of powder or granular material required as a sample by the lightweight tool stored in the sleeve portion.

Further, according to the method for manufacturing a powder / granule storage bag according to the fifth aspect of the present invention, there are wide choices of methods for integrating the sleeve portion with the powder / granule storage bag, and the bags can be integrated. Can be easily manufactured and attached to a split valve. In addition, as in the invention described in claim 6, the manufacturing process is performed in a clean room, and further, in the invention described in claim 7, Finally, if a sterilization treatment by radiation is applied, it becomes possible to store aseptic powders such as powder for injections and powders having a strong medicinal effect.

[Brief description of drawings]

FIG. 1 is a partially sectional front view showing an embodiment of a powder or granular material storage bag of the present invention.

FIG. 2 is a partially sectional front view showing a state in which the powder or granular material storage bag of FIG. 1 is attached to a hopper of a manufacturing facility.

3 is a vertical cross-sectional view showing the split valve of FIG.

FIG. 4 is a partial cross-sectional side view showing a state in which the splot valve of FIG. 2 is opened.

FIG. 5 is a front view in partial cross-section showing a sampling state.

FIG. 6 is a partially sectional front view showing a state in which a sample stored by cutting a sleeve portion is taken out.

FIG. 7 is an exploded perspective view showing an example of another split valve applicable to the present invention.

FIG. 8 is a vertical cross-sectional view of FIG.

9 is a vertical cross-sectional view showing a state where the valve body of the split valve shown in FIG. 7 is rotated.

FIG. 10 is a schematic configuration diagram for explaining a conventional method of storing powdery or granular material.

FIG. 11 is a schematic configuration diagram for explaining another conventional method of storing powdery or granular material.

[Explanation of symbols]

10 bags 10a opening 11, 12 sleeves 11a, 12a Tip 13, 40 split valve 16,43 valve body 16b, 43b Passive valve body 25, 48 Passive side body 29 Measuring cup (measuring tool)

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) B65D 30/24 B65D 30/24 Z 33/00 33/00 Z F term (reference) 3E064 AD30 BA09 BA26 BA30 BA36 BB03 BC18 EA30 FA06 HN65 HR04 HS07 HU10 3E070 AA31 AB11 DA11 DA12 GA11 VA18 WK01 WK20 3E084 AA02 AA12 AA24 AA25 AA26 AB07 BA02 BA06 CA01 CB03 CC01 FA09 FD11 FD12 GA01 GB01 LB02 LB07 LD02 LD02

Claims (7)

[Claims] 1. A bag, the opening of which is closed by one of the divided split valves, is provided with a tubular sleeve portion whose inner space is continuous with the inside of the bag and whose front end is sealed. A bag for storing powder and granules. 2. The bag for storing powder and granules according to claim 1, wherein a plurality of the sleeve portions are provided in the bag. 3. The powdery or granular material storage bag according to claim 1, wherein a measuring tool is stored in the sleeve portion. 4. The powder or granular material storage bag according to any one of claims 1 to 3, wherein the sleeve portion is provided on the receiving side of the powder or granular material stored in the powder or granular material storage bag. A method of using a bag for storing powder and granules, which is used for sampling. 5. A bag in which a bag having an opening portion and at least one tubular sleeve portion having a continuous one end portion, a continuous inner space, and a closed front end portion are integrated with the bag is manufactured. After that, storing the weighing tool from the opening into the sleeve,
The method for manufacturing a powdery or granular material storage bag according to any one of claims 1 to 3, wherein one of the divided split valves is attached to the opening. 6. The method for manufacturing a powdery fluid storage bag according to claim 5, wherein the steps after manufacturing the bag are performed in a clean room. 7. The method of manufacturing a powdery or granular material storage bag according to claim 5, wherein after the divided one of the split valves is attached to the opening, sterilization is performed.