JP2006116661A - Winding base material and package and slitter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide winding base material and package and a slitter, having excellent packaging fitness for packing a material to be stored using a sheet or a winding base material, both ends of which are half-cut parallel, easily folding the sheet or the winding base material in storing the material to be stored, and finely forming a folded packaged body. <P>SOLUTION: In this package using the winding base material and the packaged body using it where a winding web at least one side of which is provided with a sealing layer is slit or simultaneously half-cut, half-cuts are make parallel at both ends of the winding base material. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a winding substrate, a package, and a slitter that are used when storing and packaging a stored item or the like using a sheet or a winding substrate.

  Examples of stored items include daily goods such as toothbrushes, detergents, shampoos, toothpastes, spoons, scourers, etc .; medical / pharmaceutical products such as haps, drinks, pills, nutrients; chocolates, candy, Examples include confectionery / preference products such as rice crackers and powdered juices; industrial parts such as batteries, batteries, planar heating elements, and planar luminous bodies; desserts such as jelly and pudding.

  A winding base material used when packaging stored items or the like is usually subjected to slit processing to a predetermined width of a wide winding raw material. Then, it is supplied to a winding supply unit such as a filling and packaging machine (including automatic, semi-automatic, manual, etc.).

  Alternatively, after slitting to a predetermined width, it is supplied to a take-up supply unit of a bag making machine (including automatic, semi-automatic, manual, etc.) and bag-made into an appropriate size. Then, the bag-made product that has been processed into a bag is supplied to a filling and packaging machine (including automatic, semi-automatic, manual, etc.) and the like, and stored items are stored and packaged.

  Moreover, when bag-making the winding base material in which the slit process was given, a winding base material is normally supplied to the winding supply part of a bag making machine. The supplied take-up base is fed out from the supply unit by a drag roller or the like. Furthermore, the rolled-up winding substrate is folded in two, or conveyed to a seal portion while being applied in a tube shape, and bag forming processing is performed in a bag shape.

  Furthermore, in order to make it easy to take out the stored items stored in the package, half-cut processing or the like is also performed at an appropriate position of the winding base material on the bag making machine or the filling and packing machine for storing the stored items. .

(1) Prior art 1
A method shown in FIG. 6 is known as an apparatus for folding a winding substrate into two by a bag making machine.

  The bag making machine 100 includes a winding supply unit 105 that supplies a wound base material 101 that has been slit, a drag roll 104 that feeds the base material 101, and a triangular guide plate 103. Then, the base material 101 is folded in two by a triangular guide plate 103 provided between the drag roll 104 from the take-up supply unit 105 via the guide roll 102, and conveyed to the seal part, It is processed into a predetermined shape.

(2) Prior art 2
An automatic bending apparatus 200 (for example, Patent Document 1) that automatically bends a winding base material into a tube shape is also known.

As shown in FIG. 7, this apparatus has a base 122 for sliding the take-up base 121, and a horizontal section having a T-shaped cross section connected on the base 122 according to the center line of the base 121. A fixed plate 124 having a plate and a vertical plate and a heat seal roller 123 are provided. And the winding base material 121 slides on the base 122 and the fixed plate 124 by the rotation of the heat seal roller 123 and is folded into a tube shape.

(3) Prior art 3
Further, a sheet bending apparatus 300 (for example, Patent Document 2) is also known as an apparatus that can bend a sheet accurately.

  As shown in FIG. 8, the apparatus 300 includes a drive roll 139 that conveys a sheet 131, a sheet bending guide 133, and a sheet bending arm 135. The sheet bending arm 135 includes a pair of sheet bending rolls 137 in the vicinity of the edge in the direction of one drive roll 139, and a support shaft 136 in the vicinity of the other edge.

  Further, in the folding process of the sheet 131, the drive roll 139 rotates until the portion where the sheet 131 is bent comes to the front end portion 134 of the sheet folding guide 133, and the sheet 131 is conveyed. Then, the sheet bending arm 135 moves downward from above with the support shaft 136 as a fulcrum, and the outer peripheral surface of the lower sheet bending roll 137 comes into contact with the sheet 131 protruding from the leading end portion 134 and is sandwiched between the nip portions 138. Made by being involved.

(4) Prior art 4
In addition, in order to eliminate the bad aesthetics of the fold when the take-up base material is folded in two, a method is known in which a portion that becomes a crease portion is cut in advance and overlapped to make a bag.

  In this method, as shown in FIG. 9, two winding substrates 143 are provided with a knife (leather) 146 provided at the tip of a triangular guide plate 142 provided between the winding supply unit 141 and the drag roller 144. It is cut by. And the base material 143 is piled up two via the guide roller 145 given above and below the knife 146, and it is conveyed with the drag roller 144.

(5) Prior art 5
An easy-open pouch (for example, Patent Document 3) is also known in which a half cut is applied to a winding base material portion where an opening of the pouch is formed, and the stored item can be easily taken out from the opening. .

  The easy-open pouch 160 is sealed on all sides of the pouch 160 as shown in FIG. And the half cut 161 which connects a both-ends edge is given to the appropriate location of the upper opening part of the pouch 160, and the notch 162 is given to the both ends of the half cut 161 further.

(6) Prior art 6
Furthermore, an opening sealing lid material (for example, Patent Document 4) in which a lid material such as a plastic cup container or a paper container is half-cut to make it easy to remove the stored items or the like is also known. .

  As shown in FIGS. 11A and 11B, the opening sealing lid member is provided with a half cut 152 on the inner periphery of the resin film 151 corresponding to the container opening 154.

Prior art documents are shown below.
Japanese Patent Laid-Open No. 5-85529 JP 2000-264542 A Japanese Patent Laid-Open No. 2000-190991 JP-A-8-301322

(1) About Prior Art 1 In Prior Art 1, the take-up base material is fed by a drag roller, further handled by a triangular guide plate, and folded in two. For this reason, when a winding base material is thick (wall thickness), there exists a problem that it is hard to be folded in two. Furthermore, there is a problem that the creases are not formed beautifully.

  Further, when the winding base material is thin, there are problems such as cutting at the tip of the triangular guide plate and wrinkles.

  In addition, if the winding base material is handled on the triangular guide plate, and there are protrusions or protrusions on the surface of the triangular guide plate, the inner surface of the winding base material folded in two is damaged. Or pinholes or the like.

  Furthermore, when the winding base material is thin (thickness unevenness), there is a problem that the winding base material meanders with the triangular guide plate. Moreover, since the winding base material meanders, there is a problem that a fold position where the winding base material is folded in two is shifted. For this reason, there is a problem that the appearance of the winding base material folded in two is deteriorated.

  Further, when the winding base material is handled by the triangular guide plate and folded into two, the winding base material meanders depending on the vibration of the triangular guide plate, the installation angle, the installation position, or the like. And there exists a problem that the external appearance of the folded fold becomes worse.

  The surface of the triangular guide plate is generally subjected to surface processing such as hard chrome plating or silicon resin or fluorine resin processing in order to improve smoothness. However, since the surface of the triangular guide plate is transported in a state in which the winding substrate is handled, there is a problem that the resin or the like whose surface has been processed is worn out quickly and the surface is exposed. Therefore, there is a problem that the winding base material meanders or is damaged.

  Furthermore, there is a problem that surface processing must be frequently performed in order to prevent the background from appearing on the surface of the triangular guide plate. For this reason, there also exists a problem that maintenance expenses, such as the expense which surface-treats, require much.

(2) Prior Art 2 In Prior Art 2, since the take-up substrate is conveyed in a state of being handled on a base or a fixed plate, the thickness (wall thickness) of the take-up substrate to be folded is thick. However, there is a problem that the folds at both ends to be folded are difficult to form and cannot be folded neatly.

  In addition, the shape of the base or the fixing plate for forming the winding base material into a tube shape is very complicated, and there is a problem that the cost for manufacturing becomes high.

  Furthermore, since the winding substrate is conveyed while being handled on the base or the fixed plate, in order to improve the sliding of the base or the fixed plate, such as hard chrome plating processing, silicon resin processing or fluororesin processing Surface processing etc. are given.

  However, since the place where the winding base material is strongly handled on the base or the fixing plate is almost specified, there is a problem that the portion is worn out and the ground surface immediately appears.

  Furthermore, there is a problem of meandering because slippage between the winding base material and the base or fixing plate which are being conveyed due to the surface of the base or fixing plate being deteriorated partially. Furthermore, there is a problem in that the wound base material treated by the smooth state of the background is damaged or a pinhole is generated.

(3) Prior Art 3 In Prior Art 3, after a sheet having an appropriate length is conveyed from a sheet folding guide, the sheet is folded by a sheet folding roll applied to a sheet folding arm 135 and further bitten into the sheet folding roll. It is folded in two. However, when the sheet is thin, there is a problem of winding around the sheet folding roll.

  In addition, there is a problem that a fold that is folded in two depending on the conveyance accuracy of the sheet conveyed from the sheet folding guide is not formed at the center.

  Furthermore, since the bending operation is an intermittent operation, there is a problem that the production speed is slow and the productivity is poor.

(4) Prior Art 4 In Prior Art 4, a winding base in which the center of the winding substrate is cut by a knife applied to the tip of a triangular guide plate and cut into two by a drag roll via a guide roller. The materials are superimposed and conveyed to the bag making section. However, when the knife to be cut is used for a long period of time, the knife cannot be cut, and there is a problem that fluffing (fine cotton-like material) occurs on the cut surface of the winding substrate. For this reason, there is a problem that the appearance of the cut sections superimposed on the two deteriorates.

  Furthermore, there is a problem that the knife must be changed frequently. For this reason, there exists a problem that production efficiency worsens.

(5) Prior Art 5 In the prior art 5, the half cut formed on the pouch is normally half cut with a slitter knife or the like provided in the bag making machine. For this reason, it is very difficult to adjust the half-cut depth, and it is difficult to perform half-cut at a uniform depth for a long period of time, for example, the half-cut depth becomes shallow due to wear of a knife or the like.

  Furthermore, there is a problem that the production efficiency deteriorates because the wear state of the knife is frequently checked or replaced.

(6) Prior Art 6 In Prior Art 6, when a resin film serving as a lid material is subjected to a half cut having an appropriate shape, a punching die in which steel cutting blades are implanted at right angles on a plywood or the like is usually used. For this reason, when the thin resin film is subjected to half-cutting, an irregularity work for adjusting the height of the cutting blade is performed. However, since the resin film used as the lid is thin and somewhat thick, it is difficult to perform the unevenness work and takes a long time.

Furthermore, since the thickness of the resin film is somewhat thin, there is a problem that a part that has been half cut penetrates or a part that is half cut by a slight external force is cut off.

  Furthermore, since the punching die cannot withstand long-term use, there is a problem that it must be frequently replaced. In addition, there is a big problem that every time it is exchanged, it is necessary to perform a muddy work etc. over a long time.

  This invention is made | formed in view of the said conventional problem, and it aims at providing the following winding base materials, a package, and a slitter.

That is, the first object of the present invention is to
Provided are a winding base material and a packaging body which can be folded into two accurately, neatly and easily without meandering the folds of the winding base material to be folded.

The second object of the present invention is to
Provided is a slitter that can always perform half-cutting at an appropriate position and an appropriate depth at the same time as the slitting process of the winding roll.

The third object of the present invention is to
Provided is a slitter which can be easily adjusted in a half cut and can be applied in a short time.

The fourth object of the present invention is to
Provided is a wrapping body having a beautiful folding line in which a wound base material, which is half-cut with a slitter, is folded in two and the stored items are stored.

The fifth object of the present invention is to
A slitter capable of stably using a half-cutting blade for a long period of time, further improving work efficiency, and reducing maintenance costs.

In order to solve the above problems, the invention according to claim 1 of the present invention provides:
A winding substrate provided with a sealing layer on at least one side of the substrate film,
The winding substrate is characterized in that a half cut parallel to both ends in the flow direction of the winding substrate is included.

Next, the invention according to claim 2 of the present invention is as follows:
(1) Cutting to a predetermined length perpendicular to the flow direction of the winding substrate,
(2) Fold the mountain from the half-cut part,
(3) Insert the item to be wrapped,
Further, the package body is characterized in that at least three sides other than the half-cut portion are sealed to form a bag.

Next, the invention according to claim 3 of the present invention is
A slitter that slits a wide-winding roll into a narrow-winding substrate,
A slitting blade in the slitter;
The slitter is characterized in that a half-cutting blade is provided.

Next, the invention according to claim 4 of the present invention is
A cutting depth adjusting plate is provided on at least one side of the half-cutting blade so that the half-cutting blade is provided with a step for restricting the blade from entering the surface of the wide winding roll. It is a slitter characterized by being.

Next, the invention according to claim 5 of the present invention is
The slitter according to claim 3 or 4, wherein the half-cutting blade is a rotatable round blade.

Next, the invention according to claim 6 of the present invention is
The slit blade according to any one of claims 3 to 5,
The half-cutting blades are round blades and are attached to the same shaft.

  In the slitter of the present invention, a half-cut blade is provided on the same axis on which the slitter blade is provided. For this reason, a known slitter can be used without using a dedicated machine for half-cutting. And a half cut can be given to the appropriate position of a winding base material simultaneously with a slitter process.

  Moreover, the slitter of this invention is provided with the cutting depth adjustment board which provides the level | step difference which regulates the cutting of a blade on the outer periphery of the blade for a half cut. With this cut depth adjusting plate, a half cut having an appropriate depth can be accurately and stably applied to the winding substrate.

  Furthermore, when the take-up substrate is folded in half by applying a half-cut of an appropriate depth to the take-up substrate, it can be folded accurately, easily and cleanly from the half-cut portion. it can.

  Further, even when the stored item is stored using the winding base material folded in two, the fold portion is formed accurately and cleanly. Further, the outer peripheral edge where the stored items are stored is applied with a heat seal or the like, and a package with a beautiful appearance is formed.

  In addition, the half-cutting blade for half-cutting the winding substrate should be a round blade made of alloy tool steel (SKD), high-speed steel (SKH), or various ceramics, not a steel cutting blade or knife. Therefore, adjustment at the time of half-cut processing is easy and can be performed in a short time.

  Furthermore, a stable, uniform and more accurate half-cut processing operation can be continued without changing the half-cut blade in a short time.

  In addition, since the cut base material is formed with a uniform depth of cut, it can be handled with a guide plate and folded into two without using a simple method such as an air guide or a folding rod. It can be easily and accurately folded in two from the portion where the mark is applied.

  Furthermore, when folding, the winding substrate can be folded in two accurately from the half cut portion without meandering.

  In addition, since the take-up substrate or sheet that has been subjected to half-cutting can be accurately folded in two, it is easy to store the stored items, and the workability such as a sealing seal after storing is also good and looks good. Also good.

The winding base material, packaging body, and slitter of the present invention will be described in detail along the embodiments with reference to the drawings. 1 to 5 show an embodiment of the present invention.

  The present invention is a winding substrate, a package, and a slitter that are used when a stored item or the like is packaged using a sheet or a winding substrate. Examples of stored items include daily goods such as toothbrushes, detergents, shampoos, toothpastes, spoons, scourers, etc .; medicinal components such as haps, drinks, medicines, nutrients; chocolates, candy, rice crackers Examples include confectionery / preferred products such as powdered juice; industrial parts such as batteries, batteries, planar heating elements, and planar luminous bodies; desserts such as jelly and pudding.

  Next, FIG. 1 is a schematic view showing an outline of one embodiment of the slit cutting part of the slitter of the present invention.

  As shown in FIG. 1, the slitter of the present invention is provided with an upper shaft and a lower shaft that are rotationally driven at a slit cutting portion of the slitter. Further, the same number of upper blades 2 and 3 for slitting the wide winding raw fabric into an appropriate width and number of faces are provided on the upper shaft, and the lower blade 8 is provided on the lower shaft.

  Further, a half-cutting blade 1 for half-cutting the winding base material 7 is provided at an appropriate position between the upper blade 2 and the upper blade 3 provided on the upper shaft. Then, simultaneously with the slit cutting of the take-up raw fabric, half-cut cutting is performed at an appropriate position and depth in parallel with the end face of the take-up substrate 7 with the half-cut blade 1.

  A cutting depth adjusting plate 4 is provided that regulates the cutting of the blade when half cutting is performed near the outer periphery of both side surfaces of the blade 1 for half cutting. Then, a half-cut with an appropriate cut depth is uniformly and stably applied to the winding substrate 7 by the cut depth adjusting plate 4.

  Further, the half-cutting blade 1 shown in FIG. 1 is not shown in the drawing in addition to the double-edged blades due to the material, material configuration, thickness (thickness), etc. of the winding substrate 7. An appropriate blade shape such as a single blade is selected.

  Further, the cutting depth adjusting plates 4 provided in the vicinity of the outer periphery of both side surfaces of the half-cutting blade 1 do not necessarily have to be provided on both side surfaces. May be provided on one side surface of either one of the half-cutting blades 1.

  Next, FIG. 2 is a schematic view showing an outline of an embodiment in which a half cut is applied to the winding base material of the present invention.

  As shown in FIG. 2, the take-up base 7 has a base film 6 and a seal layer 5 laminated thereon. Then, the winding base material 7 is slit-cut to an appropriate width by the slitter blades 2 and 3, and at the same time, the cut 9 is half-cut on the base film 6 by the half-cutting blade 1 and the cutting depth adjusting plate 4. Is formed on the seal layer 5.

  Further, the depth 9 of the half cut formed in the take-up base 7 is adjusted by a cut depth adjusting plate 4 provided on both side surfaces or one side surface of the blade 1 for half cut.

  Next, FIG. 3 is a schematic view showing an outline of an embodiment in which a winding base material subjected to a half cut is folded in two.

As shown in FIG. 3, the take-up base material 7 has a half-cut cut in the base material film 6. Then, when the seal layer 5 is folded inward, it is half-cut accurately and easily because it is half-cut. Further, the folded winding base material 7 is housed in the folded winding base material 7 according to the purpose or application to be used, and then the outer peripheral edge folded by a heat seal or the like is bonded and bonded. A good-looking package can be obtained.

  In addition, after the winding base material 7 that has been cut into half cuts is folded, it is processed into a bag shape having an opening, and it is clean even if the stored item is stored and the opening is bonded and bonded. A good-looking package can be obtained.

  FIG. 4 is a schematic view showing an outline of one embodiment of the slitter of the present invention. As shown in FIG. 4, the slitter includes an unwinding portion 10, a slitter cutting portion 14, and a winding portion 22. Although the unwinding unit 10 is not shown in the drawing, a tension control device is provided to rewind the wide winding base paper 17 while applying a constant tension. Therefore, the take-up raw fabric 17 is sent out from the unwinding unit 10 while maintaining a uniform tension.

  In addition to the unwinding unit 10, the tension control device is not shown in the drawing, but a slit cutting unit 14 for slitting a wide winding base paper 17 into an appropriate width and number of faces, and a winding substrate 7 Is also provided in the take-up portion 22 that winds up. And the winding base material 7 in which the cut of the half cut was given is wound up by the winding-up part 22, maintaining a fixed uniform tension.

  In addition, the take-up raw fabric 17 fed out while applying a certain tension travels on the guide roll 11 and is slit and half cut into an appropriate width and number of faces by the slitter cutting unit 14. The slit cutting at the slitter cutting section 14 is performed by using two rotating round blades of the upper blade 2 and the lower blade 8, and the winding substrate 7 is cut in a bent shape on the lower blade (bending shear cutting method). ).

  Further, the winding base material 7 that has been slit and half cut to an appropriate width by the bending shear cutting method maintains a uniform tension by driving the winding shaft of the winding unit 22 and the driving roll 12, thereby guiding the winding. A roll 15 is wound around a winding shaft with a predetermined number of surfaces. Furthermore, although not shown in the drawing, a touch roll 13 or the like is provided on the winding base material 7 that is wound in order to wind the wound winding base material 7 neatly.

  Further, the slitter of the present invention may be a straight shrecut that is slit-cut in a planar shape by the upper blade 2 and the lower blade 8 when the winding raw fabric 17 is slit-cut by the slit cutting portion 14. Further, the score cutting method (mechanism) or the rotary leather cutting method (mechanism) can also apply a half-cut blade to the winding substrate 7 simultaneously with the slitter cutting.

  Further, the same number of upper blades 2 and lower blades 3 are provided on the upper shaft and the lower shaft in accordance with the number of surfaces on which the wide winding raw fabric 17 is slit. Further, the slitter of the present invention is provided with half-cutting blades at appropriate positions of the upper blade 2 and the upper blade 3 provided on the upper shaft.

  The upper blade 2 and the lower blade 3 may be made of high-speed steel (SKH), special steel such as alloy tool steel (SKD), various ceramics, or the like.

  Next, FIG. 5 is explanatory drawing explaining the outline of one Example in which the winding base material of this invention is used.

As shown in FIG. 5, the take-up base material 7 with the half cut 9 is cut into a predetermined size by the cutting portion 16 to form a sheet 18. Then, the stored item is placed on the sheet and folded from the half-cut notch 9 to form a fold portion 21 of the sheet.

  Further, the outer peripheral edge of the folded sheet in which the stored items are stored is bonded and bonded by a heat seal or the like to form the bonded adhesive portion 20 and to obtain a clean package 19 with the fold portion 21.

  Further, although not shown in the figure, a base material that is half-cut at an appropriate location on the winding base material can be used by feeding it to a paper feed unit such as a filling and packaging machine or a packaging machine. For example, after supplying a take-up base material that has been subjected to half-cutting to a paper feeding unit and storing the stored items on a filling and packaging machine or packaging machine, the outer peripheral edge is bonded and bonded by a heat seal or the like. A clean, good-looking package is obtained.

  For the bonding and bonding, a heat seal, an impulse seal, an ultrasonic seal, a high-frequency seal, or the like can be used. The bonding method depends on the material, material configuration, packaging form, distribution conditions, stored items, etc. of the winding substrate. Etc. are appropriately selected.

  Moreover, the sheet | seat or winding base material which concerns on this invention can apply the laminated film which laminated | stacked the base film and the film used as a sealing layer, or what coated the coating material etc. on the base film.

  The film serving as the sealing layer is, for example, a low density polyethylene resin, a medium density polyethylene resin, a high density polyethylene resin, a linear low density polyethylene resin, a polypropylene resin, an ethylene-vinyl acetate copolymer, an ionomer resin, or an ethylene-acrylic. Acid copolymer, ethylene-ethyl acrylate copolymer, ethylene-methacrylic acid copolymer, ethylene-methyl methacrylate copolymer, ethylene-propylene copolymer, polymethylpentene resin, polybutene polymer resin; polyethylene or polypropylene Polyolefin resin such as acrylic acid, methacrylic acid, maleic acid, maleic anhydride, fumaric acid, itaconic acid, etc. modified acid-modified polyolefin resin; polyvinyl acetate resin, poly (meth) acrylic resin, Films of thermoplastic resins such as Ribiniru resin is suitable, it is a film of stretched or unstretched.

  Examples of the base film include polyterephthalic acid ester, polypropylene, low density polyethylene, medium density polyethylene, high density polyethylene, polystyrene, polycarbonate, polyamide, saponified polyvinyl chloride ethylene-vinyl acetate copolymer, acrylic Examples thereof include a film based resin, a film of cellulose acetate, a film such as cellophane, paper, synthetic paper, and aluminum foil.

Wherein, stored items are applications or purposes or housing is used as the basis weight of the paper varies depending distribution conditions, etc., usually 25g / m ² ~60g / m ² in the range of about preferably. Further, water resistance or oil resistance is imparted to the paper depending on the stored items and distribution conditions.

As a method for imparting water resistance or oil resistance to the paper, there are a method for making paper and a method for impregnating or coating the paper. In the case of papermaking, the added water-resistant agent is usually an internally added water-resistant agent that is internally added to the pulp suspension before papermaking. Resins, epoxidized polyamide resins, polyethyleneimine resins, dialdehyde starch, glyoxalized polyacrylamide resins and the like. The amount of the water-resistant agent added varies depending on the type of pulp to be used, the type of chemical, and the intended water resistance. In addition, as the secondary processing chemical for imparting water resistance to the paper-processed paper, those having a good balance of price or performance are used. For example, many waxes such as carnauba wax, paraffin wax, and polyethylene wax are used. In addition, polymer solutions or emulsions such as water-insoluble polyvinyl chloride, polyvinylidene chloride, polyvinyl acetate, ethylene-vinyl acetate copolymer, vinylidene chloride-vinyl acetate copolymer are used.

  Next, in order to impart oil resistance to paper, paper using fluorine compounds such as acrylic acid perfluorinated hydrogen or phosphate ester is known as oil-resistant paper. In general, it is treated with a fluorinated oilproofing agent.

  When coating the above paper processed with water-resistant or oil-proofing agent, roll coater, air knife coater, metering bar coater, fountain blade coater, bevel blade coater, short dwell coater, curtain coater, etc. used. Although the coating machine to process is not specifically limited, Water-proofing agent or oil-proofing agent etc. are applied to the inner side surface or the outer side surface or both side surfaces of paper using any appropriate coating machine.

  Moreover, when a gas barrier property is required for the sheet or the winding substrate, a packaging material having a gas barrier layer can be used. For example, an inorganic oxide thin film or a gas barrier resin layer can be used as the gas barrier layer.

  Examples of the inorganic oxide thin film include a thin film obtained by making a metal oxide amorphous. Examples of the inorganic oxide include silicon (Si), aluminum (Al), magnesium (Mg), calcium (Ca), potassium (K), tin (Sn), sodium (Na), boron (B), titanium ( Oxides such as Ti), lead (Pb), zirconium (Zr), yttrium (Y) can be used.

  Gas barrier resin layers include ethylene-vinyl alcohol copolymer film, polyvinyl alcohol film, saponified ethylene-vinyl acetate copolymer film, polyethylene terephthalate film, polyamide film, polyvinyl alcohol film, polychlorinated various films. A film coated with vinylidene, aluminum foil or the like can be used.

  Further, the laminated film is applied by either an extrusion coating process in which a thermoplastic resin or the like is melted and applied, or a lamination process in which the film is bonded. Examples of the laminating process include sandwich lamination, thermal lamination, bonding lamination, wet lamination, dry lamination, non-solvent lamination, knee lamb lamination, and extrusion lamination. And it chooses suitably according to conditions, such as a material used or distribution and preservation of a package.

  Further, by using, for example, a biaxially stretched nylon film or a biaxially stretched polyester film as a base film, mechanical strength, heat resistance, printability and the like are imparted to the package. Furthermore, when cosmetics are required for the package, a two-component curable polyurethane adhesive is applied after printing on the inner surface of a biaxially stretched nylon film or a biaxially stretched polyester film by gravure printing or flexographic printing. It is laminated with each film using the dry lamination method.

  The printing is generally performed by gravure printing. When printing is performed by gravure printing, the printing ink is made using a known ink containing urethane, acrylic, vinyl, or rubber resin.

Usually, a heat seal lacquer is used as the coating material applied to the base film. The resin used in the heat seal lacquer composition varies depending on the film to be coated or the required function. For example, a single or a mixture of thermoplastic polymers such as ethylene vinyl acetate, vinylidene chloride, chlorinated polyolefin, polyamide, and acrylic is used as the base resin.

  The coating is performed using a gravure coater, a roll coater, a bar coater or the like.

  Further, the packaging form differs depending on the contents (liquid, viscous body, solid, etc.), shape, storage method, distribution conditions, sales method, etc. For example, flat bags such as a two-sided seal or a three-sided seal, a four-sided seal, a side seal or an envelope sticker seal, a seam sticker seal, a ship bottom seal, etc.

  The winding substrate and package and slitter of the present invention are suitable not only for the packaging field in which the stored material is stored using the winding substrate, but also in the bookbinding field where the finished state of the appearance of the crease portion is particularly required, or It can be used in a wide range of fields, such as the furniture field.

It is the schematic which shows the outline of one Example of the slitter cutting part of the slitter of this invention. It is the schematic which shows the outline of one Example of the winding base material by which the half cut was given with the slitter of this invention. It is the schematic which shows the outline of one Example by which the winding base material in which the half cut process was given was folded. It is the schematic which shows the outline of one Example of the slitter of this invention. It is the schematic which shows the outline of one Example in which the winding base material of this invention is used. It is the schematic which shows the outline of the apparatus which folds the conventional winding original fabric. It is the schematic which shows the outline of the apparatus which folds the conventional winding original fabric. It is the schematic which shows the outline of the apparatus which folds the conventional winding original fabric. It is the schematic which shows the outline of the apparatus which folds the conventional winding original fabric. It is the schematic which shows the outline of the package body in which the half cut process currently used is given. (A) Schematic which shows the outline of the package (cover material) in which the half cut process currently used is given, (b) is sectional drawing which shows the cross section of (a).

Explanation of symbols

1 ... Half cut blade 2 ... Upper blade (slitter blade)
3 ... Upper blade (slitter blade)
DESCRIPTION OF SYMBOLS 4 ... Cutting depth adjusting plate 5 ... Sealing layer 6 ... Base film 7 ... Winding base material 8 ... Lower blade 9 ... Half-cut cutting part 10 ... Raw material supply part 11 ... Guide roll 12 ... Drive roll 13 ... Touch roll 14 ... Slitter cutting part 15 ... Guide roll 16 ... Cut part 17 ... Take-up roll 18 ... Sheet 19 ... Packaging body 20 ... Joint bonding part 21 ... Fold part 22 ... Take-up part 23 ... Upper shaft 24 ... Down axis

Claims (6)

A winding substrate provided with a sealing layer on at least one side of the substrate film,
A winding base material comprising half cuts parallel to both ends in the flow direction of the winding base material. The winding substrate according to claim 1,
(1) Cutting to a predetermined length perpendicular to the flow direction of the winding substrate,
(2) Fold the mountain from the half-cut part,
(3) Insert the item to be wrapped,
Furthermore, the package is characterized in that at least three sides other than the half-cut portion are sealed to form a bag. A slitter that slits a wide-winding roll into a narrow-winding substrate,
A slitting blade in the slitter;
A slitter characterized in that a half-cutting blade is provided.   A cutting depth adjusting plate is provided on at least one side of the half-cutting blade so that the half-cutting blade is provided with a step for restricting the blade from entering the surface of the wide take-up roll. Slitter characterized by that.   The slitter according to claim 3 or 4, wherein the half-cutting blade is a rotatable round blade. The slit blade according to any one of claims 3 to 5,
A slitter characterized in that the blades for half-cutting are both round blades and are attached to the same shaft.

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