JP2008068559A - Manufacturing method/device of film material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To manufacture a film material formed so as to give strength to four corner columnar parts, when a box-like packaging bag is formed. <P>SOLUTION: The film material 10 is obtained by forming a pair of first insertion parts 11 and 11 which turn in to the inside, in the widthwise intermediate part, in the proceeding direction, and second insertion parts 13 and 13 which turn in to the outside on both outsides of the first insertion part 11, in parallel with the first insertion parts 11 and 11. When manufacturing the film material 10, the first insertion part 11 is formed by feeding a virgin film material to a first insertion seal formation part, and the second insertion part 13 is formed by feeding the film material under tension imparted by an extension part to a second insertion seal formation part. After that, the film material 10 with the first insertion part 11 and the second insertion part 13 are taken up by a take-up part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a film material manufacturing method and apparatus for packaging articles to form a packaging bag.

  As a device for winding a wound film material by performing a predetermined process, for example, a slitter device that cuts a wide film material into a plurality of strips, or a glue pasting machine that winds a solid film material by gluing it Etc. are known. The prior art of the slitter device is disclosed in Patent Document 1, for example. According to this, the film material is wound around the unwinding roll and supplied into the apparatus main body. A rotating chopping blade is installed in the apparatus main body, and the fed film material is cut into a plurality of strips and wound on a winding roll. At this time, the tension of the film material is detected at a predetermined location, and the film material is fed to the winding roll side while maintaining an appropriate tension.

On the other hand, the packaging bag has a shape suitable for each content, and the packaging bag itself is devised. For example, as shown in FIG. 1, a packaging bag for storing one heavy content (for example, a rice ball) is formed in a box shape in which the inside is formed in a hollow shape in order to stand up in a store. Has been. In this case, in order to maintain the treatment and standing after use, it is formed of a paper material and arranged in parallel at the store.
Japanese Patent Laid-Open No. 5-4767

  Usually, when manufacturing packaging bags for foods, medicines, etc., a resin-based film material is generally used to fill the contents while sealing. In the packaging machine that manufactures the packaging bag, the packaging bag that is continuously formed by being connected by the seal portion is cut into individual packaging bags, so that the productivity can be improved. Therefore, as shown in FIG. 1, when manufacturing a packaging bag that can store heavy contents and can be arranged in a standing manner, forming with a film material instead of a paper material improves productivity. Desirable for. However, since the packaging bag packaged with the film material does not have the strength to maintain the standing state as it is, it has been necessary to form the packaging material so that the film material itself is given strength.

This invention solves the above-mentioned subject, and aims at providing the manufacturing method and apparatus of a film material for forming the film material which has intensity | strength which can package a heavy article and can maintain a standing figure. And That is, the method for producing a film material according to the present invention includes:
In the first aspect of the present invention, the wound film material is unwound and fed into the apparatus, and at the intermediate portion in the width direction of the film material, a folded portion protruding from the flat portion along the traveling direction is provided. It forms integrally, seals in the said folding part, Then, it winds up, It is characterized by the above-mentioned.

  In the invention of claim 2, the film material feeding step of unwinding and feeding the wound film material into the apparatus, and the first folding portion along the traveling direction at the intermediate portion in the width direction of the film material. A first fold seal forming step for forming and sealing, a second fold seal forming step for forming and sealing a second fold in parallel with the first fold, and the first fold And a winding step of winding the film material on which the second folding portion is formed.

  The invention according to claim 3 is characterized in that a pair of the first folding parts are formed in parallel, and the second folding parts are formed in parallel to the outside of the first folding part, respectively. .

  The invention according to claim 4 is characterized in that in the winding process, the film material is wound up by a traverse means.

  The film material manufacturing apparatus according to the present invention is the film material feeding unit for unwinding and feeding the wound film material, and the film material unwound in a flat plate shape. A first fold forming portion that integrally forms a first fold portion that protrudes from the flat portion along the traveling direction, and a first seal that seals the first fold portion. Forming part, second fold forming part integrally forming second fold part projecting from the flat part of the film material in parallel with the first fold part, and sealing the second fold part A second seal forming part, and a winding part for winding up the film material forming the first folding part and the second folding part.

  According to a sixth aspect of the present invention, the first fold forming portion includes a first base plate that travels and guides the film material, and a first folding plate that is polymerized in the vicinity of an end portion of the first base plate. The first fold portion is formed by inserting the film material between the first base plate and the first fold plate at an intermediate portion in the width direction.

  According to a seventh aspect of the present invention, the second fold forming portion includes a second base plate that guides the film material to travel, and a second folding plate that is polymerized in the vicinity of an end of the second base plate. And the second fold portion is formed by inserting the film material between the second base plate and the second fold plate at an intermediate portion in the width direction.

  The invention according to claim 8 is characterized in that a tension portion for applying tension to the film material is disposed between the first fold forming portion and the second fold forming portion. Yes.

  The invention according to claim 9 is characterized in that a guide roll for pulling the film material outward is disposed in the second fold forming portion at a position outside the second fold plate. .

  In the invention of claim 10, a winding reel for winding the film material is disposed in the winding portion, and the winding reel is configured to wind the film material while moving in the left-right direction. It is characterized by being.

  Furthermore, in the invention according to claim 11, the film material according to the present invention is formed integrally with the center portion in the width direction by sealing the folded portion protruding from the flat portion along the longitudinal direction. It is a feature.

  According to the present invention, when a box-shaped packaging bag is manufactured by forming a folded portion along the traveling direction in the intermediate portion in the width direction of the film material and further sealing the folded portion, A pillar portion having strength can be formed. Therefore, even if a heavy content is stored in a packaging bag formed of a film material, the standing posture can be maintained, and the packaging bag can be arranged in line with the storefront.

  Moreover, when manufacturing this film material, the wound film material is formed so that it may protrude from a plane part at a 1st fold formation process, after unwinding. This folding part is formed by flowing an intermediate part in the width direction of the film material in a state of being inserted between a base plate and a folding plate that are partially polymerized. The folded portion is sealed by the seal forming portion and has strength by being formed so as to overlap the flat portion.

  When the film material manufactured in this way is formed in a packaging bag, the folding part can be arranged at the four corners of the box and can be formed as a pillar part, so that it will not fall down even if heavy contents are stored. Can be aligned with. Moreover, while forming a pair of 1st folding parts in parallel in the intermediate part of a film material and forming a 2nd folding part in parallel on the outer side of a pair of 1st folding parts, respectively, four A folding part can be formed, and when manufacturing a film material in a packaging bag, these four folding parts can arrange | position the corner | angular part of four corners. Therefore, the corners at the four corners can maintain strength, so that even if a heavy object is stored, it can be aligned with the storefront in a standing manner.

  Further, when the second fold forming portion is formed by the second fold forming portion, the film material is easily bent inward, so that a tension is provided on the film material by arranging the guide roll and flowing it so as to spread outward. Can make a smooth flow.

  Furthermore, when the film material that has formed the first folding part forms the second folding part, tension is applied along the traveling direction immediately before the second folding part, so that the film material is moved in the traveling direction. The second fold portion can be formed smoothly without being bent along.

  Moreover, when winding the film material in which the first folding part and the second folding part are formed, the winding reel is repeatedly moved in the width direction of the film material and wound in a traverse shape. Make sure that the folding parts do not overlap. Thereby, the diameter of the film material taken up by one take-up reel can be balanced without being biased to a part in the width direction.

  Next, an embodiment of the film material manufacturing apparatus of the present invention will be described with reference to the drawings. As shown in FIG. 1, the film material manufactured by this manufacturing apparatus can be used as a packaging bag 1 capable of arranging heavy contents 3 in a standing state. For this purpose, as shown in FIGS. 2 to 3, the film material 10 is formed with two first folds 11 and two second folds 13 along the longitudinal direction at intermediate positions in the width direction. The folding parts 11 and 13 protrude from the flat part 15 of the film material 10 to one side, and the protruding folding part 11 is brought down to the flat part 15 side to be in a polymerized state. When these four folding parts 11 and 13 are formed in the box-shaped packaging bag 1, as shown in FIG. 1, it is formed as the pillar part 5 arrange | positioned at four corners.

  As shown in FIGS. 4 to 5, the apparatus 20 for manufacturing the film material 10 unwinds the solid film material F from the upstream unwinding portion, and forms the folded film portion 10 into the downstream winding. It is configured to have a long body frame portion 21 until it is wound up by the take-up portion. That is, the film material feeding unit 22 having an unwinding portion around which the solid film material F is wound, and the first folding seal forming unit 30 that forms and seals the first folding portion 11 on the solid film material F. A second fold seal forming portion 40 that forms and seals the second fold portion 13, and a tension between the first fold seal forming portion 30 and the second fold seal forming portion 40. The part 25 and the winding part 55 which winds up the film material 10 which formed the 1st folding part 11 and the 2nd folding part are comprised.

  The film material feeding unit 22 is configured to unwind the solid film material F wound on the reel 221 and feed it toward the first folding seal forming unit 30 while being guided by a plurality of feeding rolls 23. Has been.

  The first fold seal forming portion 30 includes a first fold forming portion 31 that forms a pair of first fold portions 11 and 11 in the width direction intermediate portion of the solid film material F fed on a plane, And a first seal forming portion 35 for sealing the folded first folding portion 11.

  As shown in FIG. 6, the first fold forming part 31 is disposed on the front end side of the first base plate 32 formed in an elongated shape along the traveling direction and the first base plate 32. First folding plates 33 and 33 are arranged so as to partially overlap the upper surfaces of both side portions of the front end portion of the first base plate 32. The first base plate 32 is fixed to the main body frame portion 21, and the pair of first folding plates 33 and 33 can be moved in the width direction with respect to the first base plate 32 by the width adjusting device 34. Is arranged. As shown in FIG. 7, the solid film material F passes through the lower surface side of the first base plate 32 and travels through the upper surfaces of the pair of folding plates 33 and 33. That is, the solid film material F is bent inward by passing between the first base plate 32 and the first folding plate 33 around the both end portions of the first base plate 32 in the intermediate portion. The first folding part 11 is formed.

  The pair of first folding plates 33, 33 is a first folding plate 33 in which a solid film material F passing through the lower surface side of the first base plate 32 is disposed on the front end side of the first base plate 32. In order to pass through the upper surface side, inclined surfaces 331 and 331 are formed so that an insertion space can be formed between the rear portion and the first base plate 32.

  The width adjusting device 34 that moves the first folding plates 33, 33 in the width direction includes an outer frame portion 341 that is fixed to the main body frame 21 and a shaft portion 342 that is movable in the outer frame portion 341. ing. By connecting the shaft portion 342 to the first folding plate 33, the first folding plate 33 can be moved in the width direction of the film material F by the movement of the shaft portion 342. If the width adjusting device 34 is also movable in the height direction, the first folding plate 33 is moved up and down by the thickness of the film material F to adjust the gap with the first base plate 31. Can do.

  The first seal forming portion 35 includes a preheating heater portion 36 and a seal roll portion 37 in order to seal the first folding portion 11 on the flat surface portion 15. The preheating heater section 36 is composed of a pair of upper and lower long plates that sandwich the first folding section 11 and performs preheating before heat sealing with a seal roll.

  The seal roll part 37 is composed of a pair of upper and lower seal rolls 38, 38 for sandwiching the film material F. The film part F is sandwiched between the flat part 15 and the first folding part 11 and heated at a high temperature. One side of the material F is heat-sealed. That is, in FIG. 3, the lower surface of the film material F is formed as a surface that is coated and not thermally fused, and is formed as a surface that can be thermally fused by heating the upper surface. Therefore, the heat fusion part 16 will be formed between the 1st fold part 11 (or 2nd fold part 13) and the plane part 15 of FIG.

  In addition, the 1st folding part 11 heat-sealed is cooled with the cooling fan 39 arrange | positioned in the downstream. By forming the pair of first folding parts 11 and 11 in the solid film material F, the film material F is fed downstream as a preliminary film material F1.

  The preliminary film material F <b> 1 is sent toward the extending portion 25 disposed on the downstream side of the first folding seal forming portion 30 and is given a tension. The tension portion 25 includes a plurality of guide rolls 26 that travel and guide the preliminary film material F1 and a swing lever 27 that can pull the preliminary film material F1 in order to maintain a predetermined tension. A pulling roll 28 is attached to the tip of the swing lever 27, and is actuated so as to swing in the vertical direction by detecting the bending state of the preliminary film material F1.

  The second fold seal forming portion 40 is a pair of second fold portions 13 formed in parallel with the first fold portions 11 and 11 outside the pair of first fold portions 11 and 11 formed in parallel. And a second seal forming portion 50 for sealing the folded second folded portion 13.

  As shown in FIG. 8, the second fold forming portion 41 is disposed on the front end side of the second base plate 42 formed in a long shape along the traveling direction and the second base plate 42. Second folding plates 43 and 43 are provided so as to partially overlap the upper surfaces of both side portions of the front end portion of the second base plate 42. As shown in FIG. 10, the second base plate 42 is disposed such that the rear portion is inclined upward with respect to the main body frame portion 21, and the pair of second folding plates 43 and 43 are respectively The front end portion is formed with notches 431 and 431. In the notches 431 and 431, guide rolls 44 and 44 are provided for traveling and guiding the preliminary film material F1 so as to spread outward.

  On the other hand, when the preliminary film material F1 passes through the second fold forming portion 41, the preliminary film material F travels on the upper surface side of the second base plate 42 as shown in FIG. Travels through the lower surfaces of the folding plates 43, 43. That is, the preliminary film material F1 passes through the upper surface of the second base plate 42 at the rear portion of the second base plate 42, and then the lower surface of the second base plate 42 and the second base plate 42 at the front portion of the second base plate 42. The second folding portions 13 that are bent outward are formed by passing between the upper surfaces of the folding plates 43.

  As described above, the second base plate 42 has the second base plate 42 in order for the preliminary film material F1 to travel on the upper surface at the rear portion of the second base plate 42 and form the second folding portion 13. It flows so as to be inserted through the lower surface side. For this reason, as shown in FIG. 10, the second base plate 42 is supported by the two rising rods 45, 46 disposed in the main body frame portion 21 so that a gap is formed between the second base plate 42 and the main body frame portion 21. Forming. The two raising rods 45 and 46 are juxtaposed along the traveling direction so that the rear raising rod 46 is higher than the front raising rod 45 so that the second base plate 42 is raised rearward. It is arranged in. Further, the pair of second folding plates 43 and 43 are formed with inclined surfaces 432 and 432 so that an insertion space can be formed between the rear portion and the second base plate 42 in a plan view.

  The guide rolls 44, 44 are brought into contact with the preliminary film material F 1 inserted through the lower surface side of the second folding plates 43, 43 at the notches 431, 431 of the second folding plates 43, 43 and the second folding By disposing also on the rear side (upstream side) of the plate 43 for use, the tendency of the preliminary film material F1 to be easily bent inward due to the formation of the second folding portion 13 is corrected.

  The second seal forming part 50 includes a preheating heater part 51 and a seal roll part 52 in order to seal the second folding part 13 on the flat part 15. The preheating heater section 51 is composed of a pair of upper and lower long plates that sandwich the second folding section 13 and performs preheating before heat sealing with a seal roll.

  The seal roll portion 52 is composed of a pair of upper and lower seal rolls 53, 53 that sandwich the preliminary film material F1, and simultaneously holds the flat portion 15 and the second folding portion 13 of the preliminary film material F1 and heats them at a high temperature. Then, the upper surfaces of the preliminary film material F1 formed so as to be heat-sealable are heat-sealed.

  In addition, the 2nd folding part 13 heat-sealed is cooled with the cooling fan 55 arrange | positioned in the downstream. By forming the second folding parts 13 and 13 in the preliminary film material F1, the preliminary film material F1 is fed downstream as the film material 10.

  As shown in FIGS. 5 and 11, the take-up unit 55 includes a take-up reel 57 extending from the take-up drive device 56 attached to the main body frame unit 21 toward the traveling path side of the film material 10. ing. The take-up reel 57 is disposed so as to be rotatable by the take-up driving device 56 and is continuously movable in the left-right direction. The continuous movement (traverse means) of the take-up reel 57 in the left-right direction is such that the first fold portion 11 and the second fold portion 13 are formed thicker than the flat portion 15, so The part 11 and the second folding part 13 are displaced so as not to overlap with each other. Note that two sets of the take-up reel 57 may be installed in order to improve the production amount.

  Next, the operation of the device 20 configured as described above will be described. As shown in FIGS. 4 to 5, the solid film material F manufactured by the apparatus 20 includes a film material feeding process M <b> 1 that unwinds the wound solid film material F and sends it into the apparatus 20. The first fold seal forming step M2 for forming and sealing the first fold portion 11 along the traveling direction at the intermediate portion in the width direction of the film material F, and the second fold in parallel with the first fold portion 11 Formed through a second folding seal forming step M3 for forming and sealing the folding portion 13 and a winding step M4 for winding up the film material 10 on which the first folding portion 11 and the second folding portion 13 are formed. Is done.

  The solid film material F is unwound from the wound state and flows toward the first folding seal forming step M2 while being guided by the plurality of feed rolls 23. The solid film material F that has entered the first folding seal process M2 passes through the lower surface of the first base plate 32 and travels on the upper surface of the pair of first folding plates 33, 33 at the intermediate portion thereof. Thus, the solid film material F that has passed through the first folding plates 33, 33 forms a pair of parallel first folding portions 11. When the first folding parts 11 and 11 are heated by the preheating heater part 36, they pass through the pair of upper and lower sheet rolls 38 and 38, and are heated integrally with the flat part 15 of the solid film material F, so that the first Between the folded portion 11 and the flat portion 15.

  In this state, as shown in FIG. 7, the pair of first folding parts 11, 11 are bent inward and overlapped with the flat part 15. Thereafter, when the first folding parts 11 and 11 are cooled by the cooling fan 39, the solid film material F becomes the preliminary film material F1 and travels toward the second folding seal forming step M3. In the preliminary film material F1 folded in the second fold sealing process M3, the first folds 11 and 11 may be loosened along the traveling direction in the first fold seal forming process M2. The tension is moderately applied by the tension portion 25. At this time, if the preliminary film material F1 is loose along the traveling direction, the pulling roll 28 is pulled by the swing of the swing lever 27 downward and has an appropriate tension.

  The preliminary film material F1 that has entered the second folding seal forming step M3 first travels on the upper surface of the second base plate. When the preliminary film material F1 goes to the front of the second base plate 42, the preliminary film material F1 is removed from between the second base plate 42 and the main body frame portion 21 at a portion outside the first folding portions 11 and 11. It travels on the lower surface side of the second folding plate 43. Thereby, the 2nd folding parts 13 and 13 are formed.

  The preliminary film material F <b> 1 on which the second folding portion 13 is formed is formed as the film material 10 by being cooled by the cooling fan 54.

  The formation position of the 1st folding part 11 and the 2nd folding part 13 is shown in FIG. The first base plate 32 in the first folding seal forming step M2 is formed to be narrower than the second base plate 42 in the second folding seal forming step M3, and a pair of first folding plates 33, 33 And the pair of second folding plates 43, 43 are disposed so as to overlap both sides of the first base plate 32 and the second base plate 42, respectively. Is formed inside the second folding parts 13 and 13. As shown in FIG. 3, in the first fold forming portion 31, the solid film material F passes through the lower surface side of the first base plate 32 and passes through the upper surface side of the first folding plate 33, In the second folding formation part 41, the preliminary film material F1 passes through the upper surface side of the first base plate 42 and passes through the lower surface side of the second folding plate 43. The second folding parts 13, 13 are formed so as to bend outward and bend inward.

  And the film material 10 which formed the 1st fold part 11 and the 2nd fold part 13 is taken up, being traversed by the take-up reel 57 currently moved to the left-right direction via a guide roll part. It is done. Thereby, the film material 10 forms the first folding parts 11 and 11 and the second folding parts 13 and 13, and the first folding parts 11 and 11 and the second folding parts 13 and 13 make one turn. It will be wound up while shifting its position.

  As described above, since the film material manufacturing apparatus 20 according to the embodiment forms a pair of the first fold portion 11 and the second fold portion 13 along the traveling direction in the solid film material F, a packaging bag is formed. When forming in box shape, it can form so that it may become the pillar part 5 which has intensity | strength by arrange | positioning the 1st folding parts 11 and 11 in four corners. Moreover, since the first folding part 11 and the second folding part 13 are performed in separate steps, the first folding part 11 and the second folding part 11 can be reliably and without forming the apparatus 20 in a complicated manner. The folding part 13 can be formed.

  Further, by providing a tensioning portion 25 that stretches the looseness of the preliminary film material F1 between the first folding seal forming portion 30 and the second folding seal forming portion 40 arranged as separate strokes, It is possible to easily form the second folding part 13 that is folded by the second folding seal forming part 40.

  Further, the apparatus 20 is configured so that it can be adjusted each time even if a solid film material F having different width and thickness dimensions is used. Further, the inward bending of the solid film material F or the preliminary film material F1 can be corrected by arranging a guide roll that extends outward.

  And since the film material 10 which formed the 1st folding part 11 and the 2nd folding part 13 is wound up by a traverse method, the rolled up film material 10 can be wound up substantially equally in the width direction.

  In addition, in the manufacturing apparatus of the film material of this invention, it does not limit to said form. For example, a plurality of reels 221 in the film material feeding unit 22 and a plurality of take-up reels 57 in the take-up unit 55 are arranged, and the film material wound around the next reel is sequentially unwound and wound up after the end of one winding. Thus, productivity can be improved.

  Moreover, if the guide roll 44 arrange | positioned by the 2nd fold formation part 41 is arrange | positioned in the 1st fold formation part 31, it will correct the bending to the inner side of the solid film material F also in the 1st fold formation part 31. In addition, if the width adjusting device 34 arranged in the first fold forming portion 41 is arranged in the second fold forming portion 41, the second fold forming portion 41 also has the second folding plate. 43 width adjustments can be made.

It is a perspective view which shows the packaging bag of one form formed with the film material of this invention. It is a plane development view showing a film material of the present invention. It is the III-III sectional view in FIG. It is a simplified front view which shows the manufacturing apparatus of the film material by this invention. It is the same simplified plan view. It is an enlarged plan view which shows the 1st fold formation part in FIG. It is VII-VII sectional drawing in FIG. It is an enlarged plan view which shows the 2nd fold formation part in FIG. It is IX-IX sectional drawing in FIG. It is an enlarged front view which shows the 2nd folding seal formation part in FIG. It is a simplified side view which shows the winding-up part in FIG. It is a simplified top view which shows the formation state of a 1st folding part and a 2nd folding part.

Explanation of symbols

1, packaging bag 3, contents 5, pillar part 10, film material 11, first folding part 13, second folding part 15, plane part 20, device 22, unwinding part 25, stretching part 30, first 1 fold seal forming portion 31, first fold forming portion 32, first base plate 33, first fold plate 34, width adjusting device 35, first seal forming portion 37, seal roll portion 40, first 2 fold seal forming portion 41, second fold forming portion 42, second base plate 43, second folding plate 431 cutout portion 50, second seal forming portion 52, seal roll portion 55, winding portion 57, winding reel M1, film material feeding process M2, first fold seal forming process M3, second fold seal forming process M4, winding process

Claims (11)

  The wound film material is unwound and fed into the apparatus, and at the intermediate portion in the width direction of the film material, a folding portion protruding from the flat portion along the traveling direction is integrally formed, and the folding A method for producing a film material, wherein the film material is wound after being sealed.   A film material feeding step of unwinding and feeding the wound film material into the apparatus, and a first fold portion is formed and sealed along the traveling direction at an intermediate portion in the width direction of the film material. A fold seal forming step, a second fold seal forming step for forming and sealing a second fold portion in parallel with the first fold portion, and forming the first fold portion and the second fold portion. And a winding process for winding up the film material.   3. The film material according to claim 2, wherein the first folding part is formed in a pair in parallel, and the second folding part is formed in parallel to the outside of the first folding part. 4. Production method.   The method for producing a film material according to claim 2 or 3, wherein the winding step winds the film material with a traverse means.   A film material feeding section that unwinds and feeds the wound film material, and a first fold that protrudes from the plane portion along the traveling direction in the intermediate portion in the width direction of the film material that is unrolled in a flat plate shape A first fold forming portion that integrally forms a portion, a first seal forming portion that seals the first fold portion, and a flat portion of the film material in parallel with the first fold portion. A second fold forming portion that integrally forms a projecting second fold portion, a second seal forming portion that seals the second fold portion, the first fold portion, and the second fold portion. An apparatus for producing a film material, comprising: a winding unit that winds up the film material on which the folding portion is formed.   The first fold forming portion includes a first base plate that travels and guides the film material, and a first folding plate that is polymerized in the vicinity of an end of the first base plate, and the film material is 6. The apparatus for producing a film material according to claim 5, wherein the first folding part is formed by passing between the first base plate and the first folding plate in an intermediate part in the width direction. .   The second fold forming portion includes a second base plate that travels and guides the film material, and a second folding plate that overlaps in the vicinity of an end of the second base plate, and the film material is The film material according to claim 5 or 6, wherein a second folded portion is formed by inserting between the second base plate and the second folding plate at an intermediate portion in the width direction. Manufacturing equipment.   The tension part which applies tension | tensile_strength to the said film material is arrange | positioned between the said 1st fold formation part and the said 2nd fold formation part. The manufacturing apparatus of the film material of description.   8. The film material according to claim 7, wherein a guide roll that pulls the film material outward is disposed in the second fold formation portion at a position outside the second fold plate. 9. Manufacturing equipment.   The take-up reel is provided with a take-up reel for taking up the film material, and the take-up reel is configured to take up the film material while moving in the left-right direction. The apparatus for producing a film material according to any one of 5, 6, 7, 8, and 9.   A film material, wherein a folded portion protruding from a flat portion along a longitudinal direction is sealed and integrally formed at a central portion in a width direction.

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