JP4253774B1 - Granule storage bag - Google Patents

Abstract

To provide a granular material storage bag capable of preventing the hand holding portion from biting into the finger when the finger is hooked on the hand holding portion to carry the granular material storage bag in a state where the granular material is stored.
A granular material storage portion 21 for encapsulating granular material K by fusing the upper side portion 1, the lower side portion 2, the left side portion 3 and the right side portion 4 of a plastic front sheet body 5 and back sheet body 6 is disclosed. In the formed granular material storage bag, the upper side portion 1 is a laminate band 7 in which a thermoplastic plastic material 55 is laminated on both front and back surfaces of a reinforced plastic material, and is arranged in a sandwich form on the sheet body 5 and the back sheet body 6. And the intermediate part A of the laminate strip 7 is interposed between the sheet body 5 and the back sheet body 6 so that it can be pulled out as a handle, and one surface of the laminate strip 7 is used as an embossed surface. .
[Selection] Figure 1

Description

  The present invention relates to a granular material storage bag.

  2. Description of the Related Art Conventionally, a granular material storage bag for storing granular materials such as rice has a hand holding portion for carrying, and is configured to be carried by hooking a finger on the hand holding portion (see, for example, Patent Document 1).

However, when the hand-held part consists of a hole or a slit formed in the fused part on the upper side, the hand-held part when the finger is hooked on the hand-held part to carry the granular material storage bag in a state where the granular material is stored Bite into the finger and the finger hurts. Further, the hand-held portion is weak in strength and may be broken.
JP 2002-316368 A

  The problem to be solved is that when the finger is hooked on the hand-held portion to carry the granular material storage bag in a state where the granular material is stored, the hand-held portion bites into the finger and the finger becomes painful. In addition, the hand-held portion is weak in strength and may be broken.

  Therefore, the granular material storage bag according to the present invention has a granular material storage portion that encloses the granular material by fusing the upper side portion, the lower side portion, the left side portion, and the right side portion of the plastic front sheet body and the back sheet body. In the formed granular material storage bag, the lower side portion is a non-fused opening when no granular material is charged, and the upper side portion is a laminate band in which a thermoplastic plastic material is laminated on both front and back surfaces of a reinforced plastic material. The body is arranged in the form of a sandwich between the sheet body and the back sheet body, and the laminated band body has a large number of small sized air passages on both the left and right sides to prevent particulate discharge, except for the intermediate part. In this way, a large number of small fused portions are arranged in the form of dots, and are fused and integrated with the above-described sheet body / back sheet body, and the intermediate portion of the laminate band is represented by the above-mentioned sheet body / back surface. It can be pulled out as a handle between sheets It is, and the one or both sides of the laminate of strips and embossed surface.

  In addition, in the granular material storage bag formed of a granular material storage portion that encloses the granular material by fusing the upper side portion, the lower side portion, the left side portion, the right side portion of the plastic front sheet body and the back sheet body, The lower side portion is an unfused opening when no granular material is charged, and the upper side portion is a laminate band body in which an LLDPE film is laminated on both front and back surfaces of a nylon film, and is sandwiched between the sheet body and the back sheet body. In addition, the laminate strip has a large number of small fused portions in a scattered manner so that the left and right sides form a large number of small sized air passages for preventing particulate discharge, except for the intermediate portion. It is arranged and fused and integrated with the above-mentioned sheet body / back sheet body, and the intermediate portion of the laminate band is interposed between the above-mentioned sheet body / back sheet body so that it can be pulled out as a handle. One of the laminate strips Or both sides was embossed surface.

The embossed surface has a large number of inner and outer continuous grooves that communicate the granular material storage part with the outside air.
Moreover, the uneven height dimension of the embossed surface was set to 3 μm or more and 50 μm or less.

Moreover, it has the scattered point fusion | fusion row | line | column which fused the said sheet | seat body and the said back sheet | seat body in the shape of a dotted line along the lower edge of the intermediate part of the said laminated strip.
In addition, the scattered small fused portions are elliptical or oval in shape, and at least in the vicinity of the intermediate portion, the small fused portions are arranged with a predetermined inclination angle in an upward inclination toward the center in the left-right direction. .
Further, in the boundary area between one of the left and right sides of the laminate strip and the intermediate portion, the laminate strip, the sheet body and the back sheet body, and the laminate strip in the vertical direction A cut line portion fused so as to cross across the line was formed.
In addition, the fusion band portion for fusing the left side portion and the right side portion of the sheet body and the back sheet body to each other has a narrow upper and lower middle position, and a narrowing portion at the upper and lower middle position of the granular material storage section. Formed.

Further, along the lower edge of the intermediate portion of the laminate band, the left and right direction fusion part where the above-described sheet body and the back sheet body are fused, and from the left and right ends of the left and right direction fusion part upward It has the trapezoidal fusion part which consists of the above-mentioned sheet body, the said back sheet | seat body, and the up-down direction inclination melt | fusion part which fuse | melted the said laminated strip.
In addition, a non-bonding band portion is interposed in a fusion band portion that fuses the left side portion of the sheet body and the back sheet body together, and the right side portion of the sheet body and the back sheet body is A non-cohesive zone was interposed between the cohesive zones that were fused together.
Further, a vertical cut line portion is formed from the upper side portion, and a horizontal cut line portion is connected and formed from a lower end of the vertical cut line portion, so that the vertical cut line portion and the horizontal cut line are formed. By sequentially tearing the parts, the particulate material discharge port can be formed.

  According to the granular material storage bag of the present invention, it is possible to prevent the hand holding portion from biting into the finger when the finger is hooked on the hand holding portion so as to carry the granular material storage bag in a state where the granular material is stored. Further, the hand-held portion is excellent in strength and does not cut unexpectedly.

Hereinafter, the present invention will be described in detail based on the illustrated embodiment.
1 to 8 show a first embodiment of the present invention. In FIG. 1, the granular material storage bag 20 illustrates a state where the granular material K (for example, rice) is enclosed (stored). FIG. 2 is an enlarged view showing the upper side portion 1 of the granular material storage bag 20 and the vicinity thereof, and FIG. 5 is a state in which the upper side portion 1 is cut off (removed) for use in discharging the granular material K. FIG.

1, 2, 5, 3, and 4, the granular material storage bag 20 has a plastic rectangular sheet body 5 and a back sheet body 6, and an upper side thereof. The part 1, the lower side part 2, the left side part 3, and the right side part 4 are fused by heating such as high-frequency heating or nichrome wire heating, and used to enclose the granular material K as shown in FIG.
In the state before the granular material K is charged (that is, the granular material is not charged), the lower side portion 2 has an unfused opening shape (not shown). In this state, the arrows CC are cut and separated (however, the upper and lower sides are drawn in reverse).

The upper side 1 has a thermoplastic material 55 (for example, an LLDPE film 56; a linear low-density polyethylene, ie, a straight line) on both front and back surfaces 53 and 54 of a reinforced plastic material 51 (for example, a nylon film 52) having a width dimension W of 12 mm to 35 mm. A laminate strip 7 on which a film made of chain low-density polyethylene) is laminated is arranged in a sandwich form on the sheet body 5 and the back sheet body 6 (see FIG. 4). The remaining part excluding the intermediate part A in the longitudinal direction (left and right direction)-that is, the left and right sides 8 and 8 are provided with a number of small fused parts 9 in the form of dots to show the sheet body 5 and the back sheet. The structure is integrated with the body 6 by fusion.
A large number of (small dimension) air passages 10 having a small interval M for preventing particulate discharge (spillage) are formed between the plurality of small fused portions 9.

  6 shows an enlarged view of the main part of FIG. 2. As shown by an arrow E in FIG. 6, the small-sized air passage 10 formed between the adjacent small fusion parts 9, 9 is granular. The air in the article storage bag 20 can be discharged. By forming the small-sized air passage 10 as a degassing port in this way, the internal air is smoothly discharged (discharged) when the granular material storage bags 20 enclosing the granular material K are stacked. Thus, it can be stacked in multiple stages without collapsing. As described above, the structure in which the laminate band 7 is sandwiched between the sheet body 5 or the back surface as the embossed surface 59 (FIG. 3) of the unbonded laminate band 7 at a small interval M. The air passes between the sheet bodies 6 and the air is discharged (discharged) as indicated by an arrow E in FIG. The small interval M is set to 1 mm to 7 mm, preferably 2 mm to 5 mm. If the upper limit is exceeded, the internal granular material K may come out (discharge), and conversely, if it is less than the lower limit, fusion (described later) tends to be insufficient, or a jig As a result, it is necessary to form a large number of heating protrusions that are too small, which is troublesome to manufacture and wears even though the use time is short.

  The intermediate portion A of the laminate band 7 is interposed between the sheet body 5 and the back sheet body 6 so as to be able to be drawn out. In this way, the intermediate portion A can be pulled out as indicated by the arrow F in FIG. 2A, and the handle 11 can be formed (inverted U-shaped) as indicated by the phantom line in FIG. . That is, as shown in FIG. 5A, the handle 11 can be pulled out in the direction of the arrow in FIG. 5A, and the handle 11 can be pulled out as a whole as shown in FIG. FIG. 2B shows a state where a finger Y (shown by a virtual line) is hooked on the handle 11.

As shown in FIGS. 3A and 3B, both surfaces 57 and 58 of the laminate band 7 are embossed surfaces 59. The embossed surface 59 has a large number of grid-like inner and outer continuous grooves 60 that communicate the granular material storage portion 21 with the outside air. The uneven height h of the embossed surface 59 is set to 3 μm or more and 50 μm or less. When the uneven height dimension h is less than 3 μm, the air permeability is deteriorated. When the uneven height dimension h exceeds 50 μm, extra time is required for embossing.
As shown in FIG. 3C, only one surface 57 of the laminate band 7 may be an embossed surface 59.

  The tensile strength (breaking strength) of one laminate strip 7 is set to 30 kg or more and 60 kg or less. When the tensile strength is within this range, even if the laminate band 7 is swung around by hand with the granular material K stored, even if the handle 11 is pulled roughly, it will not break. Note that a tensile strength exceeding 60 kg is unnecessary.

  It should be noted that the sheet body 5 and the back sheet body 6 are fused in a dotted manner along the lower edge of the intermediate portion A so as not to hang on the laminate band 7 (with the laminate band 7 removed). The dotted fusion line 12 is provided. In the illustrated example, a large number of circular spot portions 13 are arranged in a line to form a scattered dot fusion line 12. In addition, as long as the spot part 13 is a round shape, it is preferable that it is an elliptical shape or an oval shape, and the scattered point fusion row 12 may be 2 rows or 3 rows. .

  In additional explanation, as shown in FIGS. 1, 2, and 5, in the upper side 1, the sheet body 5 and the back sheet body 6 are located above the scattered point fusion row 12 in the upward direction. A storage bag portion 14 opening (see arrow F) is formed, and an intermediate portion A of the laminate band 7 is stored inside the storage bag portion 14 so as to be drawn upward.

  The storage bag portion 14 encloses the left side, the right side, and the lower side (bottom side) with the innermost end row of each of the small fused portions 9 on both the left and right sides 8 and 8 and the scattered point fused row 12. It can be said that it is an upper opening bag shape.

Next, as shown in FIGS. 1, 2, and 5 to 7, the dotted small fused portion 9 has an elliptical shape or an oval shape. In addition, all the elliptical or oval small fused portions 9 are disposed with a predetermined inclination angle θ in an upward inclination toward the center in the left-right direction.
Of the large number of small fused portions 9, at least in the vicinity of the intermediate portion A--that is, in the small fused portions 9 forming the left and right sides of the storage bag portion 14--toward the left and right center. Are arranged in an upwardly inclined shape with an inclination angle θ. The inclination angle θ is preferably 30 ° to 60 °, and particularly preferably 40 ° to 50 °. The reason for this is that, as shown in FIGS. 2 and 5, when the pulling up of the laminated strip 7 is applied to the handle 11, the upward external force acting on the left and right lower ends of the handle 11 is applied. This is because the small fused portion 9 is inclined in the direction of the height, which is advantageous in strength.

2, 7, and 8, one of the left and right sides 8, 8 of the laminate band 7, the left side in the example, and the boundary line Z between the intermediate portion A and the cut line Part 15 is formed. That is, the cut line portion 15 is formed so that the sheet body 5, the laminate band body 7, and the back sheet body 6 are formed in an upper and lower band shape (vertical line shape) so as to cross the laminate band body 7 in the vertical direction (width direction). ). That is, it can be easily torn along the cut line portion 15 by hand. Then, from the lower end of the cut line portion 15, the cut line portion 16 is connected and formed horizontally in the left direction. Thereby, from FIG. 1 and FIG. 2, it becomes possible to cut out as shown in FIG. In other words, the portion 8 on the left side of the laminate band 7 is cut out to form the granular material discharge port 17.
As shown in FIG. 7, it is preferable to form a small V-shaped notch 18 and a tear start short cut at the uppermost end of the cut line portion 15. Further, as shown in FIG. 7, a perforation 19 may be additionally formed.

  Next, as shown in FIG. 1 and FIG. 14 (A), the fusion band portions 23 and 24 for fusing the left side portion 3 and the right side portion 4 of the sheet body 5 and the back sheet body 6 to each other, A narrowed portion (constricted portion) 25 is formed at the upper and lower intermediate position of the granular material storage portion 21 with the upper and lower intermediate positions being wide. If comprised in this way, it can prevent that the internal granular material K moves below, and can stand in the stable beautiful external appearance and attitude | position. That is, FIG. 14B shows a conventional granular material storage bag 40, and the granular material K moves downward, and it cannot be said that the appearance is beautiful. On the other hand, as shown in FIG. 14 (A), the present invention looks beautiful as if the waist is constricted and a large amount of granular material K is stored, and can stand in a beautiful posture.

Next, FIGS. 9 to 13 show a manufacturing method of the continuous sheet 26 for manufacturing the granular material storage bag 20 of the first embodiment. That is, as shown in FIG. 9, the belt-like (long) first plastic sheet 31 and the belt-like (long) second plastic sheet 32 are intermittently fed so that the mutual distance H gradually approaches G. give. At this time, the first and second plastic sheets 31 and 32 are intermittently fed out (wound out) from the winding rolls 33 and 34.
On the other hand, a strip-like long laminate strip 36 is wound around another roll 35 in advance (in a roll). In the same manner as the laminate strip 7 shown in FIG. 3, the long laminate strip 36 is laminated with layers (that is, the thermoplastic material 55 is laminated on both the front and back surfaces 53, 54 of the reinforced plastic material 51). 57 or both sides 57, 58 are embossed. If one side 57 is embossed, it can be handled easily in the middle of the process (the other side 58 that has not been embossed is flat, so it can be easily adsorbed by embossing vacuum. Is possible). A feed J is given from the roll 35 while feeding the long laminate strip 36. The feed J of the long laminate strip 36 is intermittent and in the same direction as the feed G of the first and second plastic sheets 31 and 32.

  As shown in FIGS. 9, 10, and 11, a polygonal cylindrical receiving roller 37 is installed in the width direction between the first and second plastic sheets 31, 32. The inner cylinder 37A is connected to the vacuum means and is held in a vacuum, and a number of suction holes are formed in the outer wall of the receiving roller 37 in the direction of arrow J. The long laminate strip 36 sent intermittently is adsorbed by the suction of air from the suction holes and sucks to one side of the polygon as shown in FIGS. In addition, the polygonal cylindrical receiving roller 37 is arranged so as to approach the first plastic sheet 31 as well, and the heating tool 38 for temporary attachment heated in the state shown in FIGS. The tip of the long laminate strip 36 is temporarily attached 41 to the first plastic sheet 31 by pressing in the N direction. That is, the receiving roller 37 performs an action like a cutting board.

Further, a fusing blade (or mechanical cutting blade) 42 is attached to the corner (ridge line portion) 39 of the hexagonal cylindrical receiving roller 37. Therefore, in the state of FIG. In this cutting blade (or cutting blade) 42, the cutting in the width direction is simultaneously performed to form the laminate band 7. That is, the laminate band 7 is formed by cutting and is temporarily attached to the first plastic sheet 31.
By the way, when the fusing blade 42 in FIG. 10 is used, both ends in the width direction (the upper side and the lower side) of the intermediate portion A shown in FIG.
Along with the feeding G of the first plastic sheet 31, the temporarily attached laminate band 7 is sent downstream, and is fused between the first and second plastic sheets 31, 32 by the fusing device 43 shown in FIG. The laminated strip 7 is fused and integrated as a sandwich. At the same time, the left and right side portions 3 and 4 are also fused.

  As can be seen from a comparison between FIG. 11 and FIG. 1 described above, the lower side 2 is not yet fused, the upper side 1 is fused, and the left side 3 and right side 4 are fused. This is already done at this time. 9 and FIG. 11 is cut by one pitch indicated by the reference symbol P in the subsequent cutting step shown in FIGS. 13 and 12 to form one granular material storage bag 20.

As shown in FIGS. 9 and 11, the uncut (non-separated continuous belt-like) continuous sheet 26 for granular material storage bags is usually once wound in a roll and stored.
Thereafter, in order to put the granular material K in the granular material charging machine 45, as shown in FIGS. 12 and 13, the feed Q is given upside down from FIG. 46, 46 sucks 47, 47 to form an opening, and the granular material K is charged from the hopper 48. Immediately after that, the lower side 2 as the upper end is attached to a fusion machine (ultrasonic or heat fusion) not shown. ), The granular material K is enclosed, and further cut as indicated by arrows C and C.
By this cutting, a state in which the handle 11 is in a state before being pulled out--a state in which the handle 11 is stored in the storage bag portion 14--is obtained in FIG.
In the present invention, the sheet body 5 and the back sheet body 6 are composed of, for example, a nylon outer layer and a polyethylene or polypropylene inner layer mounted and integrated.

  15 to 17 show a second embodiment of the present invention. In FIG. 15, the granular material storage bag 20 illustrates a state where the granular material K (for example, rice) is enclosed (stored). FIG. 16 is an enlarged view showing the upper side portion 1 of the granular material storage bag 20 and the vicinity thereof, and FIG. 17 is a state in which the upper side portion 1 is partly cut off (removed) for discharging the granular material K. FIG.

  Along the lower edge of the intermediate part A of the laminate band 7, the left and right direction fusion part 61 where the sheet body 5 and the back sheet body 6 are fused, and the left and right ends (each of the left and right direction fusion part 61) ) From the top to the bottom, and a trapezoidal fusion part 63 comprising a vertically inclined fusion part 62 to which the sheet body 5, the back sheet body 6 and the laminate band 7 are fused. The distance dimension L in the left-right direction between the left-side up-and-down inclined fused portion 62 and the right-side up-and-down inclined fused portion 62 is set to gradually decrease upward. For example, it is formed in a four semicircular arc shape (an arc shape having a central angle of 90 °) as shown in FIGS. In this case, when the handle 11 is pulled out and the granular material storage bag 20 is suspended, it is advantageous in strength.

  In the upper side portion 1, the sheet body 5 and the back sheet body 6 are directed upward (see arrow F) on the inner side of the trapezoidal fusion part 63 (that is, the range surrounded by the trapezoidal fusion part 63). A storage bag portion 14 is formed, and an intermediate portion A of the laminate band 7 is stored in the storage bag portion 14 so as to be freely drawn upward.

  As shown, a non-bonding band part 64 is interposed in a bonding band part 23 for fusing the left side part 3 of the sheet body 5 and the back sheet body 6 to each other. As shown, a non-bonding band portion 65 is interposed in a bonding band portion 24 that bonds the right side portion 4 of the sheet body 5 and the back sheet body 6 together.

  A vertical cut line portion 66 is formed from the upper side portion 1, and a horizontal cut line portion 67 (to the left or right direction) is connected and formed from the lower end of the vertical cut line portion 66 to cut the vertical direction The granular material discharge port 17 can be formed by sequentially tearing the line 66 and the cut line 67 in the left-right direction. Other configurations are the same as those of the first embodiment.

  Next, FIGS. 18 to 20 show a manufacturing method of the continuous sheet 70 for manufacturing the granular material storage bag 20 of the second embodiment. A cylindrical receiving roller 68 is installed between the first and second plastic sheets 31 and 32 in the width direction, and the interior 68A thereof is connected to the vacuum means to be held in a vacuum, and A large number of suction holes are formed in the outer wall of the receiving roller 68, and the long laminate strip 36 that is intermittently sent in the direction of the arrow J is adsorbed by suction of air from the suction holes. As shown in FIG. 18 and FIG.

  The long laminate strip 36 adsorbed to the receiving roller 68 is cut (to the above-mentioned width dimension W) by a cutting blade (for example, a cutter) 69. The receiving roller 68 is arranged so as to approach the first plastic sheet 31 as well, and presses the temporary heating heating tool 38 heated in the state of FIGS. 18 and 19 in the direction of the arrow N, The tip of the long laminate strip 36 is temporarily attached 41 to the first plastic sheet 31 in a spot shape. That is, the receiving roller 68 performs an action like a cutting board. Other manufacturing methods are the same as the manufacturing method of the continuous sheet 26 for manufacturing the granular material storage bag 20 of the first embodiment. FIG. 20 shows the cutting process.

  The present invention can be changed in design. For example, the shape of the inner and outer continuous concave grooves 60 is not only the lattice shape shown in FIG. Also good. Moreover, the structure which can form the granular material discharge outlet 17 of 1st Embodiment forms the up-down direction cutting line part 66 from the upper side part 1, and is the left-right direction from the lower end of the up-down direction cutting line part 66. A configuration in which the cut line portions 67 are connected (that is, the configuration described in the second embodiment) may be employed. In addition, the configuration enabling the granular material discharge port 17 of the second embodiment to be formed is a laminate band in a boundary zone Z between one of the left and right sides 8 and 8 of the laminate band 7 and the intermediate portion A. The structure which forms the cut line part 15 which fused | bonded the sheet | seat body 5 and the back sheet | seat body 6 expressed as the body 7 so that the laminated strip 7 might be crossed to an up-down direction (or diagonal direction) (namely, 1st implementation). The configuration described in the embodiment) may be used.

  In the present invention, as described above, the granular material K encapsulates the granular material K by fusing the upper side portion 1, the lower side portion 2, the left side portion 3, and the right side portion 4 made of plastic. In the granular material storage bag in which the material storage portion 21 is formed, the lower side portion 2 is in an unfused opening shape when the granular material is not charged, and the upper side portion 1 is heated on both the front and back surfaces 53 and 54 of the reinforced plastic material 51. A laminate band 7 in which a plastic plastic material 55 is laminated appears and is disposed in a sandwich form on the sheet body 5 and the back sheet body 6, and the laminate band 7 is formed on both the left and right sides 8 except for the intermediate portion A. A large number of small fused portions 9 are arranged in the form of dots so as to form a large number of small-sized air passages 10 for preventing particulate matter discharge, and are fused and integrated with the sheet body 5 and the back sheet body 6. In addition, the intermediate portion A of the laminate band 7 is shown between the sheet body 5 and the back sheet body 6 with a handle 11. Since one surface 57 or both surfaces 57, 58 of the laminate strip 7 is used as an embossed surface 59, the laminate strip 7 does not get in the way of being stored in the distribution process. The consumer can easily pull out the heavy granular material K as the handle 11 and is convenient. In addition, the portion corresponding to the base of the handle 11--the portion where a large number of scattered small fused portions 9 are arranged--is dispersed in the stress and does not cause stress concentration. There is also an advantage that the above problems do not occur.

Further, the strength of the laminate band 7 (particularly the reinforced plastic material 51) is high, and it can be prevented from being damaged during use. In addition, when a nonwoven fabric is used instead of the laminate strip 7, the nonwoven fabric becomes linear and the hand becomes painful when suspended, but the laminate strip 7 has good shape retention, so even when suspended. It remains in the shape of a belt and can prevent the hand from becoming painful. In particular, it is suitable as the granular material storage bag 20 for storing the granular material K which is heavy as a whole and requires air permeability. The granular material K can be used as a bag for storing not only rice, but also wheat, corn, beans and the like, fruits, soil, dog food, and the like. Further, the embossed surface 59 can prevent air blocking. That is, the air permeability is good. Further, since the embossed surface 59 is formed on the thermoplastic material 55, the embossing can be easily performed. Further, the thermoplastic plastic material 55 can be heat-sealed to the reinforced plastic material 51 and can be easily manufactured. When only one surface 57 of the laminate strip 7 is used as the embossed surface 59, the laminate strip 7 can be easily handled in the manufacturing process. That is, the other surface 58 (a flat surface not embossed) of the laminate band 7 can be vacuumed and easily attracted to the receiving roller 37.
Furthermore, when the granular material storage bags 20 are stacked, the air inside is smoothly discharged and can be stacked compactly.

  In addition, the upper side portion 1, the lower side portion 2, the left side portion 3, and the right side portion 4 of the plastic front sheet body 5 and the back sheet body 6 are fused to form a granular material storage portion 21 that encloses the granular material K. In the granular material storage bag, the lower side portion 2 is an unfused opening when no granular material is charged, and the upper side portion 1 is a laminated band in which an LLDPE film 56 is laminated on both front and back surfaces 53 and 54 of a nylon film 52. The body 7 appears and is sandwiched between the sheet body 5 and the back sheet body 6, and the laminate band 7 is small in order to prevent discharge of particulate matter except for the intermediate portion A. A large number of small fused portions 9 are arranged in a scattered manner so as to form a large number of dimension air passages 10 and are fused and integrated with the sheet body 5 and the back sheet body 6. A is inserted between the sheet body 5 and the back sheet body 6 so that it can be pulled out as a handle 11. In addition, since one side 57 or both sides 57, 58 of the laminate strip 7 is used as an embossed surface 59, the laminate strip 7 does not get in the way of being stored in the distribution process, and is easy for consumers. It is easy to carry the heavy granular material K as the handle 11 and is convenient. In addition, the portion corresponding to the base of the handle 11--the portion where a large number of scattered small fused portions 9 are arranged--is dispersed in the stress and does not cause stress concentration. There is also an advantage that the above problems do not occur.

Further, the strength of the laminate strip 7 is high, and it can be prevented from being damaged during use. In addition, when a nonwoven fabric is used instead of the laminate strip 7, the nonwoven fabric becomes linear and the hand becomes painful when suspended, but the laminate strip 7 has good shape retention, so even when suspended. It remains in the shape of a belt and can prevent the hand from becoming painful. In particular, it is suitable as the granular material storage bag 20 for storing the granular material K which is heavy as a whole and requires air permeability. The granular material K can be used as a bag for storing not only rice, but also wheat, corn, beans and the like, fruits, soil, dog food, and the like. Further, the embossed surface 59 can prevent air blocking. That is, the air permeability is good. Further, since the embossed surface 59 is formed on the LLDPE film 56, the embossing can be easily performed. Further, the LLDPE film 56 can be heat-sealed to the nylon film 52 and can be easily manufactured. When only one surface 57 of the laminate strip 7 is used as the embossed surface 59, the laminate strip 7 can be easily handled in the manufacturing process. That is, the other surface 58 (a flat surface not embossed) of the laminate band 7 can be vacuumed and easily attracted to the receiving roller 37.
Furthermore, when the granular material storage bags 20 are stacked, the air inside is smoothly discharged and can be stacked compactly.

  Further, the embossed surface 59 has a large number of continuous inner and outer grooves 60 that allow the granular material storage part 21 and the outside air to communicate with each other.

  In addition, since the uneven height h of the embossed surface 59 is set to 3 μm or more and 50 μm or less, it has appropriate air permeability.

  In addition, since it has a dotted fusion line 12 in which the sheet body 5 and the back sheet body 6 are fused in a dotted manner along the lower edge of the intermediate portion A of the laminate band 7, The air can be discharged more smoothly.

  Also, the scattered small fused portions 9 have an elliptical shape or an oval shape, and at least in the vicinity of the intermediate portion A, the small fused portions 9 are arranged with a predetermined inclination angle θ in an upward inclination toward the center in the left-right direction. Therefore, with the handle 11 held by hand, the elliptical or oval small fused portion 9 is disposed along the upward external force acting through the base portion of the handle 11. Thus, it is possible to prevent a problem that force is transmitted from the sheet body 5 and the back sheet body 6 to the handle 11 and tears.

  Further, in the boundary zone Z between one of the left and right sides 8, 8 of the laminate strip 7 and the intermediate portion A, the laminate strip 7, the sheet body 5 and the back sheet body 6, are represented by the laminate strip 7. Since the cut line portion 15 is formed so as to be transversely crossed in the vertical direction, the particulate discharge port 17 can be formed by tearing along the cut line portion 15 (cut).

  In addition, the fusion band portions 23 and 24 for fusing the left side portion 3 and the right side portion 4 of the sheet body 5 and the back sheet body 6 to each other are wide at the upper and lower intermediate positions, so Since the narrowed portion 25 is formed at the intermediate position, the granular material K is excessively gathered downward as in the conventional granular material storage bag 40 shown in FIG. 14 (B), and the granular material K is sufficiently filled. As shown in FIG. 14A, it is possible to stand in a beautiful posture and to prevent the granular material K from moving too much downward.

  Further, along the lower edge of the intermediate portion A of the laminate band 7, the left and right direction fusion part 61 where the sheet body 5 and the back sheet body 6 are fused, and the left and right ends of the left and right direction fusion part 61 are shown. Since it has a trapezoidal fusion part 63 composed of an up-down direction inclined fusion part 62 fused to the sheet body 5, the back sheet body 6, and the laminate band 7, the handle 11 is pulled out and suspended. Excellent in strength. That is, it is possible to prevent a problem that force is transmitted from the sheet body 5 and the back sheet body 6 to the handle 11 and is torn. Further, it is possible to completely prevent the granular material from spilling from the vicinity of the handle 11.

  Further, the non-bonding band portion 64 is interposed in the fusion band portion 23 that fuses the left side portion 3 of the sheet body 5 and the back sheet body 6 together, and the sheet body 5 and the back sheet body 6 Since the non-cohesive zone 65 is interposed in the cohesive zone 24 that fuses the right side portion 4 to each other, heat is quickly released after the cohesive zone 23 and the cohesive zone 24 are fused. Can do.

  In addition, a vertical cut line portion 66 is formed from the upper side portion 1 and a horizontal cut line portion 67 is formed from the lower end of the vertical cut line portion 66 to be connected to the vertical cut line portion 66 and the horizontal cut line. Since the granular material discharge port 17 can be formed by sequentially tearing the line portion 67, the granular material can be easily torn along the vertical cut line portion 66 and the horizontal cut line portion 67 (cut out). The discharge port 17 can be formed.

It is a front view which shows the 1st Embodiment of this invention. It is a principal part enlarged view. It is principal part expansion explanatory drawing of a laminate belt. It is an AA cross-section enlarged simplified view of FIG. It is a principal part enlarged front view which shows a use condition. It is a principal part expansion explanatory drawing. It is a principal part enlarged view. It is DD sectional explanatory drawing of FIG. It is a front view which shows an example of the manufacturing method of the continuous sheet for manufacturing the granular material storage bag of 1st Embodiment. It is a principal part expansion explanatory drawing. It is a principal part expanded bottom view. It is explanatory drawing of a granular material input process. It is explanatory drawing of a cutting process. It is perspective explanatory drawing which contrasted this invention and the prior art example. It is a front view which shows 2nd Embodiment. It is a principal part enlarged view. It is a principal part enlarged front view which shows a use condition. It is a front view which shows an example of the manufacturing method of the continuous sheet for manufacturing the granular material storage bag of 2nd Embodiment. It is a principal part expansion explanatory drawing. It is explanatory drawing of a cutting process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Upper side part 2 Lower side part 3 Left side part 4 Right side part 5 Front sheet body 6 Back sheet body 7 Laminate strip 8 Right and left both sides 9 Small fused part
10 Small sized air passage
11 Handle
12 Scattered fusion line
15 Cut line
17 Particulate outlet
21 Granule storage
23, 24 Cohesive zone
25 Aperture
61 Horizontal fusion part
62 Inclined welds in the vertical direction
63 Trapezoidal fusion part
64 Non-bonded zone
65 Non-bonded zone
66 Vertical cut line
67 Horizontal cut line A A Middle part h Concave and convex height dimension K Granular object Z Boundary area θ Inclination angle

Claims (11)

The upper side (1), the lower side (2), the left side (3), and the right side (4) of the front sheet body (5) and the back sheet body (6) are fused to form a granular material (K In the granular material storage bag formed with the granular material storage part (21) enclosing
The lower side portion (2) has an unfused opening shape when no particulate matter is charged, and the upper side portion (1) has a thermoplastic material (53) (54) on both sides of the reinforcing plastic material (51). 55) is laminated on the sheet body (5) and the back sheet body (6), and the laminated band (7) has an intermediate portion (7). Except for A), multiple left and right sides (8) and (8) have many small fused parts (9) in the form of scattered dots so that a large number of small sized air passages (10) for preventing particulate discharge are formed. The above-mentioned sheet body (5) and back sheet body (6) are fused and integrated, and the intermediate portion (A) of the laminate strip (7) is represented by the above-mentioned sheet body (5) and back surface. It is interposed between the sheet bodies (6) as a handle (11) so that it can be pulled out.
A granular material storage bag, wherein one side (57) or both sides (57) (58) of the laminate strip (7) is an embossed surface (59). The upper side (1), the lower side (2), the left side (3), and the right side (4) of the front sheet body (5) and the back sheet body (6) are fused to form a granular material (K In the granular material storage bag formed with the granular material storage part (21) enclosing
The lower side (2) has an unfused opening when no particulate matter is charged, and the upper side (1) has an LLDPE film (56) on both front and back surfaces (53) and (54) of a nylon film (52). The laminated strip body (7) is disposed in a sandwich form on the above-described sheet body (5) and back sheet body (6), and the laminated strip body (7) has an intermediate portion (A) thereof. Except for the above, the left and right sides (8) and (8) are provided with a large number of small fused portions (9) in the form of dots so that a large number of small-sized air passages (10) for preventing particulate matter discharge are formed. The sheet body (5) and the back sheet body (6) are fused and integrated, and the intermediate portion (A) of the laminate strip (7) is the surface sheet body (5) and back sheet body ( 6) is interposed as a handle (11) so that it can be pulled out.
A granular material storage bag, wherein one side (57) or both sides (57) (58) of the laminate strip (7) is an embossed surface (59).   The granular material storage bag according to claim 1 or 2, wherein the embossed surface (59) has a large number of continuous inner and outer grooves (60) communicating the granular material storage portion (21) with the outside air.   The granular material storage bag according to claim 1, 2 or 3, wherein the embossed surface (59) has an uneven height (h) of 3 µm or more and 50 µm or less.   A scattered spot fusion line in which the above-described sheet body (5) and the back sheet body (6) are fused in a dotted manner along the lower edge of the intermediate portion (A) of the laminate strip (7). The granular material storage bag according to claim 1, 2, 3, or 4 having (12).   The dotted small fused portions (9) are elliptical or oval in shape, and at least in the vicinity of the intermediate portion (A), a predetermined inclination angle (θ The granular material storage bag according to claim 1, 2, 3, 4 or 5.   In the boundary area (Z) between one of the left and right sides (8) and (8) of the laminate strip (7) and the intermediate portion (A), the laminate strip (7) and the display sheet A cut line portion (15) is formed by fusing the body (5) and the back sheet body (6) so as to cross the laminate strip (7) in the vertical direction. , 5 or 6 granular storage bag.   The fusing band portions (23) and (24) for fusing the left side portion (3) and the right side portion (4) of the sheet body (5) and the back sheet body (6) to each other are positioned at the upper and lower intermediate positions. The granular material storage bag according to 1, 2, 3, 4, 5, 6 or 7 in which a narrowed portion (25) is formed at an intermediate position between the upper and lower sides of the granular material storage portion (21).   A laterally fused portion (61) in which the above-mentioned sheet body (5) and the back sheet body (6) are fused along the lower edge of the intermediate portion (A) of the laminate strip (7). The up-and-down slanting fusion part obtained by fusing the sheet body (5), the back sheet body (6), and the laminate strip (7) upward from the left and right ends of the left-right direction fusion part (61). The granular material storage bag according to claim 1, 2, 4, 6, 7, or 8 having a trapezoidal fusion part (63) composed of (62).   The non-bonding band part (64) is interposed in the fusing band part (23) for fusing the left side part (3) of the sheet body (5) and the back sheet body (6) to each other. The non-bonding band part (65) is interposed in the bonding band part (24) that fuses the right side part (4) of the sheet body (5) and the back sheet body (6) to each other. , 2, 3, 4, 5, 6, 7, 8 or 9.   A vertical cut line portion (66) is formed from the upper side portion (1), and a horizontal cut line portion (67) is connected and formed from the lower end of the vertical cut line portion (66) to The granular material discharge port (17) can be formed by sequentially tearing the direction cut line portion (66) and the left and right direction cut line portion (67). , 9 or 10 granular material storage bag.

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