JP2009050198A - Tool for evaporating alcohol, method for producing belt-like tool for evaporating alcohol, and method for producing tool for evaporating alcohol - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tool for evaporating alcohol, in which an alcohol holding material does not leak out even if a cutting position shifts, and which is obtainable at high productivity. <P>SOLUTION: This alcohol evaporating tool 1 is obtained by folding a laminated body 1a which is made by laminating a surface sheet 20 and an alcohol impregnating sheet, in a form of bringing the alcohol impregnating sheet to the inner side, and heat-sealing an edge part B excluding the folded part. The surface sheet 20 is a sheet which penetrates gas alcohol, and the alcohol impregnating sheet is a sheet which is made by impregnating a porous sheet 10 having heat-welding properties with alcohol L. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an alcohol transpiration tool for evaporating alcohol, a method for producing a strip-shaped alcohol transpiration tool, and a method for producing an alcohol transpiration tool.

When storing food or the like, an alcohol evaporating device in which an alcohol holding material holding an alcohol such as ethyl alcohol is packaged in a package that allows gaseous alcohol to pass through is used for the purpose of suppressing the growth of bacteria and the like. is there.
For example, Patent Literature 1 describes an alcohol evaporation tool in which a gel containing carboxyvinyl polymer and ethyl alcohol (that is, an alcohol holding material) is stored in a storage body that transmits gaseous ethyl alcohol as an alcohol evaporation tool. ing.
Patent Document 2 describes an alcohol evaporating tool in which an alcohol holding material in which ethanol is supported on a powder is housed in a housing that allows gaseous ethyl alcohol to pass through.
As a method for producing the alcohol transpiration tool described in Patent Documents 1 and 2, for example, using a general liquid filling and packaging device, while separating at the horizontal heat seal portion, the alcohol holding material is filled with a nozzle, The method of obtaining the alcohol transpiration tool is applied.
Usually, this strip-shaped alcohol transpiration tool is wound up or spelled and transported to a food processing company or the like. In food processing companies, etc., roll out the strip-shaped alcohol transpiration tool, cut it at the side heat seal part to obtain individual alcohol transpiration tool, fill it with the food in the packaging bag, and seal it I use it.

In Patent Document 3, an adsorbent obtained by adsorbing alcohol on a non-woven fabric or the like is covered with a film that is larger than the adsorbent and does not transmit alcohol, and a part of the end of the film is adhered to the adsorbent. An alcohol transpiration tool with an opening is disclosed. In order to manufacture this alcohol transpiration tool, a method is adopted in which a non-woven fabric or the like is impregnated with alcohol to produce an adsorbent, the adsorbent is sandwiched between films, and then a part of the end of the film is adhered.
JP 2004-121053 A Japanese Patent Publication No.55-2273 Japanese Patent No. 3159661

The cutting position may be shifted in the cutting of the strip-shaped alcohol transpiration tool, but when the alcohol transpiration tool described in Patent Literatures 1 and 2 is shifted in the cutting position and the portion other than the horizontal heat seal portion is cut, The alcohol holding material may leak out and contaminate the food in the packaging bag. Further, when the consumer accidentally cuts the alcohol transpiration tool with scissors or a knife, the alcohol holding material may leak out.
Further, in the production of the alcohol transpiration tool described in Patent Document 1, it is not easy to prepare the gel so as to have a predetermined viscosity in addition to the preparation of the gel in advance. In addition, it takes time to fill a highly viscous gel with a nozzle, so productivity is low.

On the other hand, in the alcohol transpiration tool described in Patent Document 3, even if the cutting position is shifted and a portion other than the horizontal heat seal portion is cut, the gel does not leak and it is not necessary to fill the gel at the time of manufacture. .
However, in order to manufacture the alcohol evaporating device described in Patent Document 3, it is necessary to prepare the adsorbents one by one and to perform the work of adhering the adsorbents with a film one by one. I must. As a result, it was laborious and productivity was low.
The present invention has been made in view of the above circumstances, and the alcohol retaining material does not leak even when the cutting position is shifted or when the consumer cuts accidentally, and high productivity is achieved. It aims at providing the alcohol transpiration tool obtained by this.
Moreover, it aims at providing the manufacturing method of the strip | belt-shaped alcohol evaporation tool which can manufacture such an alcohol evaporation tool, and the manufacturing method of an alcohol evaporation tool.

That is, this invention includes the following aspects.
[1] An alcohol transpiration tool in which a laminate obtained by laminating a surface sheet and an alcohol-impregnated sheet is folded so that the alcohol-impregnated sheet is inside, and an edge other than the folded portion is heat-sealed.
The top sheet is a sheet that transmits gaseous alcohol,
The alcohol-impregnated sheet is a sheet obtained by impregnating a porous sheet having heat welding properties with alcohol.
[2] An alcohol transpiration tool in which a pair of laminates obtained by laminating a top sheet and an alcohol-impregnated sheet are stacked so that the alcohol-impregnated sheet is inside, and the edge is heat-sealed,
The surface sheet of at least one laminate is a sheet that transmits gaseous alcohol,
The alcohol-impregnated sheet is a sheet obtained by impregnating a porous sheet having heat welding properties with alcohol.
[3] An alcohol transpiration tool in which a surface sheet is folded, an alcohol-impregnated sheet is sandwiched inside the folded surface sheet, and an edge other than the folded portion is heat-sealed,
The top sheet is a sheet that transmits gaseous alcohol,
The alcohol-impregnated sheet is a sheet obtained by impregnating a porous sheet having heat welding properties with alcohol.
[4] An alcohol transpiration tool in which an alcohol-impregnated sheet is sandwiched between a pair of surface sheets, and an edge is heat-sealed,
At least one of the top sheets is a sheet permeable to gaseous alcohol,
The alcohol-impregnated sheet is a sheet obtained by impregnating a porous sheet having heat welding properties with alcohol.

[5] The alcohol transpiration tool according to any one of [1] to [4], wherein the top sheet is a sheet that does not transmit liquid alcohol.
[6] The surface sheet includes a non-thermally weldable gas permeable layer in which a large number of gas permeable holes are formed, and a non-liquid permeable gas permeable layer, and the gas permeable layer is disposed on the surface side. Alcohol transpiration tool.
[7] The alcohol transpiration tool according to any one of [1] to [6], wherein the porous sheet contains a heat-welding resin.
[8] The alcohol transpiration tool according to any one of [1] to [7], wherein the porous sheet contains an alcohol-absorbing resin.
[9] The alcohol transpiration tool according to [8], wherein the heat-welding resin and the alcohol-absorbing resin are both fibrous.
[10] The alcohol transpiration tool according to [8] or [9], wherein the alcohol-absorbing resin is a polyacrylate.

[11] A folding step of folding back a belt-like laminate in which a surface sheet that permeates gaseous alcohol and a porous sheet having heat-weldability are folded along the longitudinal direction so that the porous sheet is inside,
While supplying alcohol to the inside of the folded strip-shaped laminate, the edges parallel to the folded portion of the strip-shaped laminate are continuously heat-sealed at the same time, and the transverse heat is applied along the width direction at predetermined intervals. A method for producing a strip-shaped alcohol transpiration tool, comprising: a sealing step of sealing and sealing alcohol.
[12] An alcohol transpiration tool characterized by cutting a strip-shaped alcohol transpiration tool obtained by the method for producing a strip-shaped alcohol transpiration tool according to [11] at a portion heat-sealed along the width direction. Production method.

The alcohol transpiration tool of the present invention can be obtained with high productivity while the alcohol holding material does not leak even when the cutting position is shifted or when the consumer cuts it by mistake.
According to the manufacturing method of the strip-shaped alcohol transpiration tool and the manufacturing method of the alcohol transpiration tool of the present invention, the alcohol holding material leaks even when the cutting position is shifted or when the consumer cuts it by mistake. It is possible to obtain an alcohol transpiration tool with no high productivity.

<First Embodiment>
A first embodiment of the alcohol transpiration tool of the present invention will be described.
1 and 2 show an alcohol transpiration tool of the first embodiment. In the alcohol transpiration tool 1 of the present embodiment, the laminated body 1a in which the alcohol-impregnated sheet and the surface sheet 20 are integrally laminated is folded so that the alcohol-impregnated sheet is inside, and the three sides other than the folded part A The edge B is heat-sealed.

(Alcohol impregnated sheet)
The alcohol-impregnated sheet is a sheet in which alcohol L is impregnated into the porous sheet 10 having voids inside.
The porous sheet 10 in this embodiment is a nonwoven fabric containing a fibrous alcohol-absorbing resin and a fibrous heat-welding resin. Since this nonwoven fabric contains fibrous heat-weldable resin, it has heat-weldability. Here, the heat-weldability means that it is softened at a heating temperature (for example, 80 to 150 ° C.) in a known heat sealing method, and members of the same material can be bonded together.

[Alcohol-absorbing resin]
The alcohol-absorbing resin contained in the porous sheet 10 is a resin that has a carboxy group or a sulfo group and absorbs the alcohol L.
Examples of the alcohol-absorbing resin include polyacrylate and polysulfonate. Polyacrylic acid salts and polysulfonic acid salts also include crosslinked products thereof.
Among alcohol-absorbing resins, acrylate is preferable because of the excellent absorbability of alcohol L.

[Heat welding resin]
The heat-welding resin is a resin having a softening point lower than the heat sealing temperature. Specific examples of the heat-welding resin include, for example, low density polyethylene, high density polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-α / olefin copolymer, ethylene-vinyl acetate copolymer, ethylene-acrylic acid. A copolymer etc. are mentioned. Among these, low density polyethylene is preferable because of its excellent heat weldability.

[Nonwoven fabric]
Preferably the basis weight of the nonwoven fabric is 10 to 250 g / ^{m 2,} and more preferably 30 to 100 g / ^{m 2.} If the basis weight is 10 g / m ² or more, the alcohol L can be sufficiently impregnated, and if it is 250 g / m ² or less, the alcohol-impregnated sheet can be thinned.

[alcohol]
Examples of the alcohol L impregnated in the porous sheet 10 include methanol, ethanol, n-propanol, iso-propanol, n-butanol, iso-butanol, s-butanol, and t-butanol.
Among these, ethanol is preferable because of its high food hygiene safety.
The alcohol is preferably mixed with water as appropriate.

(Surface sheet)
The topsheet 20 in the present embodiment includes a gas permeable layer 21 in which a large number of gas permeable holes 21a, 21a, ... are formed and a non-liquid permeable gas permeable layer 22, and the gas permeable layer 21 is disposed on the surface side. It is a sheet.
Thus, the surface sheet 20 including the air permeable layer 21 in which the air permeable holes 21a are formed and the non-liquid permeable air permeable layer 22 is a sheet that transmits gaseous alcohol but does not transmit liquid alcohol.

[Air-permeable layer]
The air permeable layer 21 is non-thermally weldable. That is, it does not soften even at the heating temperature at the time of heat sealing. Specifically, the air permeable layer 21 is made of a resin having a softening point higher than the heat sealing temperature, and examples of the resin having such a softening point include polyethylene terephthalate and polyvinylidene chloride.
By providing such a gas permeable layer 21, it is possible to prevent the surface sheet 20 from adhering to the heat seal roll used in heat sealing, and to increase the breaking strength.

The open area ratio of the air holes 21a in the air layer 21 is preferably 0.1 to 2.0%. Here, the open area ratio of the air permeable holes 21a is [(total area of the openings of all the air permeable holes 21a) / (area of one surface of the air permeable layer 21)] × 100%. If the open area ratio is 0.1% or more, the gaseous alcohol can be sufficiently permeated, and if it is 2.0% or less, excessive permeation of the gaseous alcohol can be prevented.
In order to obtain such a hole area ratio, it is preferable that the hole diameter of the air holes 21a is 200 to 500 μm and the number of the air holes 21a formed is ² to 17 / cm ² .
Examples of the method for forming the air permeable holes 21a include a method of punching a non-heat-weldable sheet having no holes using a needle.

[Non-permeable air-permeable layer]
The non-liquid-permeable air-permeable layer 22 is a layer that has a gaseous ethanol permeability of 20 g / (m ² · 24 hours) or more and does not transmit liquid ethanol. Here, the permeability of gaseous ethanol is a value measured in an environment of a temperature of 40 ° C. and a relative humidity of 50% using ethanol instead of water vapor in JIS Z 0208 for measuring water vapor transmission.
The non-liquid permeable gas-permeable layer 22 in this embodiment consists of an olefin resin material. Here, the olefin resin material is a resin material containing 50% by mass or more of olefin resin. The olefin-based resin material has a property of transmitting gaseous alcohol but not liquid alcohol.
Examples of the olefin resin include low density polyethylene, high density polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-α / olefin copolymer, ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, Examples thereof include ethylene-vinyl alcohol copolymer.
The polyolefin resin material may include a resin other than the olefin resin, a plasticizer, a stabilizer, and the like.
Since the liquid-impermeable layer 22 is made of an olefin resin material, it also has heat weldability.

  Further, the non-liquid permeable gas-permeable layer 22 is a non-porous layer or a porous layer in which a large number of holes that allow gas to permeate but not permeate liquid are formed. From the viewpoint of alcohol transpiration, the non-liquid permeable gas-permeable layer 22 is preferably a porous layer in which a large number of pores that allow gas to permeate but not liquid are formed.

  The thickness of the non-permeable gas permeable layer 22 is preferably 10 to 50 μm. If the thickness of the non-permeable gas permeable layer 22 is 10 μm or more, the permeation of the liquid alcohol can be reliably prevented, and if it is 50 μm or less, the permeability of the gaseous alcohol becomes higher.

(Production method)
The alcohol transpiration tool 1 of this embodiment is manufactured by the following manufacturing method, for example.
In the manufacturing method of this example, a liquid filling and packaging machine 50a as shown in FIG. 3 is used. The liquid filling packaging machine 50a includes a support 51 for folding the strip-shaped laminate 1a, a nozzle 52 for supplying alcohol L to the inside of the folded strip-shaped laminate 1a, and an edge parallel to the folded portion. 1st heat seal rolls 53 and 53 which heat-seal between them, and the 2nd heat which is provided in the downstream from the 1st heat seal roll 53, and heat-seals by sandwiching strip-like layered product 1a along the width direction Seal rolls 54 and 54 are provided.
The first heat seal roll 53 has a rotatable disk shape, and the two first heat seal rolls 53 and 53 rotate in opposite directions.
The second heat seal roll 54 is provided with a protrusion 54a parallel to the axial direction on the peripheral surface of the cylindrical roll. The two second heat seal rolls 54 and 54 rotate in opposite directions and at the same rotational speed, and when the projections 54a and 54a face each other, the laminate 1a is sandwiched and heat sealed. It is like that. The second heat seal roll 54 heat-seals at regular intervals in order to heat-seal every rotation. In general, in the second heat seal roll that performs transverse heat sealing, a plurality of protrusions are provided on the peripheral surface. However, in the present embodiment, the second heat seal roll 54 is a protrusion in order to simplify the description. It was assumed that one was provided.

In this example, first, the non-liquid permeable air layer 22 is laminated on one side of the air permeable layer 21 by, for example, a laminating method using an adhesive such as dry lamination or wet laminating, extrusion lamination, or the like. Get. Here, the adhesive does not impair the permeability of the gaseous alcohol. Specifically, the adhesive is applied in a thickness that does not impair air permeability. Alternatively, an adhesive that passes through gaseous alcohol (for example, an ethylene-acrylic acid copolymer) is used as the adhesive.
Next, the band-shaped porous sheet 10 and the band-shaped surface sheet 20 are stacked to form a band-shaped laminate 1a. At that time, for example, a lamination method using an adhesive such as dry lamination or wet lamination, thermal lamination, or the like can be applied. Also in this lamination, the permeability of the gaseous alcohol is not impaired by the adhesive.

Next, the band-shaped laminate 1a is transferred to the liquid filling and packaging machine 50a, and is folded back along the longitudinal direction using the support tool 51 so that the porous sheet 10 is on the inner side.
Next, alcohol L is continuously supplied to the inside of the folded strip-shaped laminate 1 a by the nozzle 52 to impregnate the strip-shaped porous sheet 10.
At the same time, the parallel edges B ₁ relative to the folded portion of the strip-like laminate 1a, sandwiching the first heat seal rolls 53, 53 to rotate, continuously longitudinal heat seal. Further, at predetermined intervals, the strip-like laminate 1a, and the lateral heat-sealed across along the width direction in the second heat-sealing rolls 54, 54 to rotate, to form a transverse heat-sealed portion B _2. Thereby, the strip | belt-shaped alcohol evaporation tool 1b by which alcohol L was enclosed by the area | region enclosed by the heat seal part of the laminated bodies 1a and 1a which opposes is obtained.
Thereafter, a strip of alcohol transpiration equipment 1b, and cut at each lateral heat-sealed portion B _2, to obtain a separate alcohol transpiration equipment 1.

Moreover, the alcohol evaporation tool 1 mentioned above can be manufactured also with other manufacturing methods other than the said manufacturing method. For example, as shown in FIG. 4, it can also be manufactured using a liquid filling packaging machine 60 that performs heat sealing and liquid filling while horizontally moving the strip-shaped laminate 1a.
The liquid filling and packaging machine 60 moves horizontally in synchronism with the movement of the laminated body 1a, and also heat-seals the laminated body 1a along the width direction, and a pair of folded heat-seal bars 62 and 62. The nozzle 63 which supplies alcohol from the edge part which is not heat-sealed inside the body 1a, and the heat-seal rolls 64 and 64 which heat-seal the edge part parallel to a folding | returning part are comprised.
A plurality of heat seal bars 62, 62 are installed, and each pair can be heat sealed at a predetermined interval. The pair of heat seal bars 62 are separated from the belt-like laminate 1a after the heat-sealing of the belt-like laminate 1a is completed, and return to heat-seal the belt-like laminate 1a again. .
The nozzle 63 can be inserted into the folded laminated body 1a and moves in synchronization with the movement of the laminated body 1a.
The heat seal roll 64 has a rotatable disk shape, and the two heat seal rolls 64 and 64 rotate in directions opposite to each other.

In the manufacturing method using the liquid filling and packaging machine 60, first, the belt-like laminate 1a obtained in the same manner as in the manufacturing method is folded back along the longitudinal direction so that the porous sheet 10 is on the inside. At this time, the folded portion is folded so that the folded portion becomes the bottom, and the folded laminated body 1a is moved horizontally.
Next, the laminate 1a is heat-sealed along the width direction by the heat seal bars 62 and 62 that move in synchronization with the movement of the belt-like laminate 1a. Next, a nozzle 63 is inserted inside the folded strip-shaped laminate 1 a, and alcohol is supplied while being moved in synchronization with the movement of the strip-shaped laminate 1 a to impregnate the strip-shaped porous sheet 10.
Next, the edge parallel to the folded portion of the strip-shaped laminate 1a is sandwiched between rotating heat seal rolls 64, 64, and continuously heat sealed. Thereby, the strip | belt-shaped alcohol evaporation tool 1b by which alcohol was enclosed by the area | region enclosed by the heat seal part of the laminated bodies 1a and 1a which opposes is obtained.
Thereafter, the strip-shaped alcohol transpiration tool 1b is cut at the portion heat-sealed by the heat seal 62 to obtain individual alcohol transpiration tools 1.

<Second Embodiment>
A second embodiment of the alcohol transpiration tool of the present invention will be described.
5 and 6 show an alcohol evaporating device of the second embodiment. In the alcohol transpiration tool 2 of the present embodiment, a pair of laminated bodies 2a in which the alcohol-impregnated sheet and the surface sheet 20 are integrally laminated are overlapped so that the alcohol-impregnated sheet is on the inner side, and the four edges B are formed. It is heat sealed.
In addition, the alcohol impregnation sheet | seat and the surface sheet 20 in this embodiment are the same as that of 1st Embodiment, and description is abbreviate | omitted.

(Production method)
The alcohol evaporation tool 2 of this embodiment is manufactured by the following manufacturing methods, for example.
In the manufacturing method of this example, a liquid filling and packaging machine 50b as shown in FIG. 7 is used. The liquid filling and packaging machine 50b includes a nozzle 52 that supplies alcohol L between the pair of strip-shaped laminates 2a and 2a, and a first heat seal that heat-seals the edges of both sides in the width direction of the laminate 2a. Rolls 55, 55 and a second heat seal roll 54, 54 provided downstream of the first heat seal roll 55 and heat-sealed by sandwiching the belt-like laminate 2a along the width direction. It is. The first heat seal roll 55 is provided with rotatable disks at both ends, and the two first heat seal rolls 55 and 55 rotate in directions opposite to each other. The nozzle 52 and the second heat seal roll 54 in the liquid filling and packaging machine 50b are the same as the nozzle 52 and the second heat seal roll 54 in the liquid filling and packaging machine 50a in the first embodiment.

In this example, first, a pair of strip-like laminates 2a and 2a obtained in the same manner as in the first embodiment is transferred to the liquid filling and packaging machine 50b and stacked so that the porous sheet 10 is on the inside.
Next, alcohol L is continuously supplied between the pair of strip-shaped laminates 2 a and 2 a by the nozzle 52 to impregnate the strip-shaped porous sheet 10.
At the same time, in a state where the pair of band-shaped laminates 2a and 2a are overlapped, the edge portions B ₃ and B ₃ on both sides in the width direction are sandwiched between the rotating first heat seal rolls 55 and 55, and continuously. Vertical heat seal. Further, at predetermined intervals, the strip-like laminate 2a, and the lateral heat-sealed across along the width direction in the second heat-sealing rolls 54, 54 to rotate, to form a transverse heat-sealed portion B _2. Thereby, the strip | belt-shaped alcohol evaporation tool 2b by which alcohol L was enclosed by the area | region enclosed by the heat seal part of the laminated bodies 2a and 2a which opposes is obtained.
Thereafter, a strip of alcohol transpiration equipment 2b, and cut at each lateral heat-sealed portion B _2, to obtain a separate alcohol transpiration tool 2.

Moreover, the alcohol evaporation tool 2 mentioned above can be manufactured also with other manufacturing methods other than the said manufacturing method. For example, as shown in FIG. 8, the laminate 2a can be manufactured by using a liquid filling and packaging machine 70 that vertically heat seals a plurality of locations and fills the liquid.
The liquid filling and packaging machine 70 includes a nozzle 72 that supplies alcohol between the pair of laminated bodies 2a and 2a, first heat seal rolls 73 and 73 that heat-seal the longitudinal direction of the laminated body 2a, and a first heat. 2nd heat seal rolls 74 and 74 which are provided in the downstream from the seal roll 73 and heat-seal by sandwiching the strip-shaped laminate 2a along the width direction are provided.
The first heat seal roll 73 includes a rotating shaft 73a and four disks 73b, 73b,... Attached to the rotating shaft 73a at a predetermined interval. The seal rolls 73, 73 rotate in opposite directions.
The second heat seal roll 74 is provided with a protrusion 54a parallel to the axial direction on the peripheral surface of the cylindrical roll.
In this liquid filling and packaging machine 70, the first heat seal roll 73 performs longitudinal heat sealing so that three rows of cylinders are formed along the longitudinal direction on the laminate 2a, and each cylinder is filled with alcohol from a nozzle 72. It is like that. Therefore, in the liquid filling and packaging machine 70, three rows of alcohol evaporating tools 2 can be formed from the laminate 2a.

In the manufacturing method using the liquid filling and packaging machine 70, first, the pair of laminated bodies 2a and 2a obtained in the same manner as in the first embodiment are transferred to the liquid filling and packaging machine 70, and the porous sheet 10 is on the inside. Overlap like so.
Next, the porous sheet 10 is impregnated by continuously supplying alcohol between the pair of laminated bodies 2 a and 2 a by the nozzle 72.
At the same time, in a state where the pair of band-shaped laminates 2a and 2a are overlapped, they are vertically heat-sealed by sandwiching them at predetermined intervals by rotating first heat-seal rolls 73 and 73, thereby to form a seal portion _{B 4.} Further, at predetermined intervals, the strip-like laminate 2a, and the lateral heat-sealed across along the width direction in the second heat-sealing rolls 74, 74 to rotate, to form a transverse heat-sealed portion B _2. Thereby, the strip | belt-shaped alcohol evaporation tool 2b by which alcohol was enclosed by the area | region enclosed by the heat seal part of the laminated bodies 2a and 2a which opposes is obtained.
Subsequently, a strip of alcohol transpiration equipment 2b, and cut at each longitudinal heat-sealed portion B ₄ and the transverse heat-sealed portion B _2, to obtain a separate alcohol transpiration tool 2.

<Third Embodiment>
A third embodiment of the alcohol transpiration tool of the present invention will be described.
FIG. 1 and FIG. 9 show an alcohol transpiration tool of the third embodiment. In the alcohol transpiration tool 3 of the present embodiment, the laminate 3a in which the alcohol-impregnated sheet and the top sheet 20 are integrally laminated is folded so that the alcohol-impregnated sheet is inside, and the three sides other than the folded portion A The edge B is heat-sealed.
In addition, the surface sheet 20 in this embodiment is the same as that of 1st Embodiment, and description is abbreviate | omitted.

The alcohol-impregnated sheet in the present embodiment is a sheet in which alcohol L is impregnated into a porous sheet 30 having voids inside.
The porous sheet 30 in this embodiment includes a nonwoven fabric 11 containing a fibrous alcohol-absorbing resin and a heat-welded resin-made heat-welded layer 12 having a large number of liquid-permeable holes 12a. The porous sheet 30 is folded back so that the heat-welded layer 12 is on the inner side.
The heat-welding resin constituting the heat-welding layer 12 is the same as the heat-welding resin constituting the porous sheet 10 in the first embodiment.

  The thickness of the heat welding layer 12 is preferably 5 to 20 μm. If the thickness of the heat welding layer 12 is 5 micrometers or more, sufficient heat welding property is securable. However, even if the thickness of the heat-welded layer 12 is thicker than 20 μm, improvement in heat-weldability according to the thickness is not recognized, which is useless.

It is preferable that the aperture ratio of the liquid-permeable holes 12a in the heat welding layer 12 is 0.2 to 2.0%. Here, the aperture ratio of the liquid-permeable holes 12a is [(total area of the openings of all the liquid-permeable holes 12a) / (area of one surface of the heat-welded layer 12)] × 100%. If the open area ratio is 0.2% or more, when the alcohol L is filled inside the heat welding layer 12 during the production of the alcohol evaporating device, the liquid alcohol is permeated and the nonwoven fabric 11 is sufficiently impregnated with the alcohol L. Can be made. On the other hand, if the hole area ratio is 2.0% or less, sufficient heat weldability can be secured.
In order to obtain such a hole area ratio, it is preferable that the hole diameter of the liquid-permeable holes 12a is 200 to 500 μm and the number of formed liquid-permeable holes 12a is 4 to 15 / cm ² .
By having such a heat welding layer 12, the heat welding property at the time of manufacturing the alcohol evaporation tool 3 becomes high, and the workability is improved.

(Production method)
The alcohol transpiration tool 3 of this embodiment can be manufactured as follows, for example.
In this example, the nonwoven fabric 11 and the heat welding layer 12 are produced separately, and these are laminated | stacked by the lamination | stacking method using an adhesive agent, thermal lamination, etc., and the strip | belt-shaped porous sheet 30 is obtained. When laminating, the adhesive of the liquid alcohol is not impaired by the adhesive. Specifically, an adhesive is applied so as not to block the liquid-permeable holes.
The belt-like porous sheet 30 and the belt-like topsheet 20 obtained in the same manner as in the first embodiment are laminated to form a belt-like laminate 3a.

Next, the belt-like laminate 3a is transferred to the liquid filling and packaging machine 50a shown in FIG. 3, and is folded back along the longitudinal direction using the support tool 51 so that the porous sheet 30 is inside.
Next, alcohol L is continuously supplied from the nozzle 52 to the inside of the folded strip-shaped laminate 3a. The supplied alcohol L is supplied to the nonwoven fabric 11 through the liquid-permeable holes 12a of the heat-welded layer 12 and impregnated.
At the same time, the parallel edges B ₁ against the folded portion of the strip-like laminate 3a, across the first heat seal rolls 53, 53 to rotate, continuously longitudinal heat seal. Further, at predetermined intervals, the strip-like laminate 3a, and the lateral heat-sealed across along the width direction in the second heat-sealing rolls 54, 54 to rotate, to form a transverse heat-sealed portion B _2. Thereby, the strip | belt-shaped alcohol evaporation tool 3b by which alcohol L was enclosed by the area | region enclosed by the heat seal part of the laminated bodies 3a and 3a which opposes is obtained.
Thereafter, a strip of alcohol transpiration devices 3b, and cut at each lateral heat-sealed portion B _2, to obtain a separate alcohol transpiration equipment 3.

  In addition, the alcohol evaporation tool 3 may be manufactured by a method other than the above manufacturing example, and may be manufactured using, for example, the liquid filling packaging machine 60 described above. In that case, the strip-shaped alcohol transpiration tool 3b can be obtained in the same manner as in the manufacturing method using the liquid filling packaging machine 60 in the first embodiment except that the laminate 1a is replaced with the laminate 3a. it can.

<Fourth Embodiment>
A fourth embodiment of the alcohol transpiration tool of the present invention will be described.
5 and 10 show an alcohol evaporating device of the fourth embodiment. In the alcohol transpiration tool 4 of the present embodiment, a pair of laminated bodies 4a and 4a in which the alcohol-impregnated sheet and the top sheet 20 are integrally laminated are overlapped so that the alcohol-impregnated sheet is on the inner side, and the four edges are provided. B is heat sealed.
In addition, the surface sheet 20 in this embodiment is the same as that of 1st Embodiment, and the alcohol impregnation sheet | seat is the same as that of 3rd Embodiment, and description is abbreviate | omitted.

(Production method)
The alcohol transpiration tool 4 of this embodiment is manufactured by the following manufacturing method, for example. In addition, the manufacturing method of the alcohol evaporation tool 4 is not limited to the following examples.
In this example, a pair of strip-like laminates 4a and 4a obtained in the same manner as in the third embodiment are transferred to the liquid filling and packaging machine 50b shown in FIG. 7 and stacked so that the porous sheet 30 is on the inside. .
Next, the alcohol L is continuously supplied to the inside of the pair of strip-shaped laminates 4 a and 4 a by the nozzle 52. The supplied alcohol L passes through the liquid-permeable holes 12a of the heat-welded layer 12 and is supplied to the nonwoven fabric 11 and impregnated.
At the same time, in a state where the pair of band-like laminates 4a and 4a are overlapped, the edges B ₃ and B ₃ on both sides in the width direction are sandwiched between the rotating first heat seal rolls 55 and 55, and continuously. Vertical heat seal. Further, at predetermined intervals, the strip-like laminate 4a, and transverse heat-sealed across along the widthwise direction in the second heat-sealing rolls 54, 54 to rotate, to form a transverse heat-sealed portion B _2. Thereby, the strip | belt-shaped alcohol evaporation tool 4b by which alcohol L was enclosed by the area | region enclosed by the heat seal part of the laminated bodies 4a and 4a which opposes is obtained.
Thereafter, a strip of alcohol transpiration equipment 4b, and cut at each lateral heat-sealed portion B _2, to obtain a separate alcohol transpiration equipment 4.

  In addition, the alcohol evaporation tool 4 may be manufactured by a method other than the above manufacturing example, and may be manufactured using, for example, the liquid filling packaging machine 70 described above. In that case, the strip-shaped alcohol transpiration tool 4b can be obtained in the same manner as the manufacturing method using the liquid filling packaging machine 70 in the second embodiment except that the laminate 2a is replaced with the laminate 4a. it can.

<Fifth Embodiment>
A fifth embodiment of the alcohol transpiration tool of the present invention will be described.
1 and 11 show an alcohol transpiration tool according to a fifth embodiment. In the alcohol evaporation tool 5 of the present embodiment, the top sheet 20 is folded back, the alcohol impregnated sheet is sandwiched between the folded top sheet 20, and the three edge portions B other than the folded portion A are heat sealed. ing.
In addition, the alcohol impregnation sheet | seat and the surface sheet 20 in this embodiment are the same as that of 1st Embodiment, and description is abbreviate | omitted.

(Production method)
The alcohol transpiration tool 5 of this embodiment can be manufactured as follows, for example. In addition, the manufacturing method of the alcohol evaporation tool 5 is not limited to the following examples.
In the manufacturing method of this example, a liquid filling packaging machine 50c as shown in FIG. 12 is used. The liquid filling and packaging machine 50c includes a support 51 for folding the band-shaped surface sheet 20, a nozzle 52 for supplying alcohol L to the band-shaped porous sheet 10 between the folded band-shaped surface sheets 20, and a band-shaped surface. First heat seal rolls 53 and 53 that heat-seal sandwiching an edge parallel to the folded portion of the sheet 20, provided downstream of the first heat seal roll 53, and the belt-like porous sheet 10 and There are provided second heat seal rolls 54 and 54 that heat-seal the band-shaped topsheet 20 along the width direction. The support 51, nozzle 52, first heat seal roll 53, and second heat seal roll 54 in the liquid filling packaging machine 50c are the same as the support 51, nozzle 52 of the liquid filling packaging machine 50a in the first embodiment. The same as the first heat seal roll 53 and the second heat seal roll 54.

In this example, the belt-like topsheet 20 obtained in the same manner as in the first embodiment is transferred to the liquid filling and packaging machine 50c shown in FIG. Fold continuously along the longitudinal direction to be inside. Further, the belt-like porous sheet 10 having a width approximately half the width of the surface sheet 20 is continuously supplied between the folded belt-like surface sheets 20, and the belt-like porous sheet is provided between the belt-like surface sheets 20. 10 is inserted.
Next, alcohol L is continuously supplied between the folded strip-shaped topsheets 20 by the nozzle 52 to impregnate the strip-shaped porous sheet 10.
At the same time, the edge B ₁ parallel to the folded portion of the belt-shaped surface sheet 20, continuously longitudinal heat-sealed across the first heat sealing roll 53. Further, at a predetermined interval, the belt-like porous sheet 10 and the belt-like topsheet 20 are transversely heat-sealed by being sandwiched along the width direction by the rotating second heat-sealing rolls 54, 54, and transverse heat-sealing is performed. forming a part _{B 2.} Here, since the non-liquid permeable air-permeable layer 22 of the surface sheet 20 made of a polyolefin-based resin material also has heat weldability, it can be heat sealed with the porous sheet 10. Thereby, the strip | belt-shaped alcohol evaporation tool 5b by which alcohol L was enclosed by the area | region enclosed by the heat seal part of the strip | belt-shaped porous sheet 10 and the strip | belt-shaped surface sheet 20 is obtained.
Thereafter, a strip of alcohol transpiration equipment 5b, and cut at each lateral heat-sealed portion B _2, to obtain a separate alcohol transpiration equipment 5.

<Sixth Embodiment>
A sixth embodiment of the alcohol transpiration tool of the present invention will be described.
5 and 13 show an alcohol transpiration tool of the sixth embodiment. In the alcohol transpiration tool 6 of this embodiment, the alcohol-impregnated sheet is sandwiched between the pair of topsheets 20, and the four edge portions B are heat-sealed.
In addition, the alcohol impregnation sheet | seat and the surface sheet 20 in this embodiment are the same as that of 1st Embodiment, and description is abbreviate | omitted.

(Production method)
The alcohol transpiration tool 6 of this embodiment can be manufactured as follows, for example. In addition, the manufacturing method of the alcohol evaporation tool 6 is not limited to the following examples.
In the manufacturing method of this example, a liquid filling packaging machine 50d as shown in FIG. 14 is used. The liquid filling and packaging machine 50d includes a nozzle 52 that supplies alcohol L to the belt-like porous sheet 10 between the belt-like topsheets 20, and a first heat seal roll that heat-seals the edges on both sides in the width direction. 55, 55 and a second heat seal roll 54 provided downstream of the first heat seal roll 55 and heat-sealing the band-shaped porous sheet 10 and the band-shaped topsheet 20 along the width direction, 54. The nozzle 52 and the second heat seal roll 54 in the liquid filling and packaging machine 50d are the same as the nozzle 52 and the second heat seal roll 54 in the liquid filling and packaging machine 50a in the first embodiment. Moreover, the 1st heat seal roll 55 is the same as the 1st heat seal roll 55 of the liquid filling packaging machine 50b in 2nd Embodiment.

In this example, the pair of band-shaped topsheets 20 and 20 obtained in the same manner as in the first embodiment are placed on the liquid filling and packaging machine 50d shown in FIG. Further, the belt-like porous sheet 10 having a width approximately half the width of the surface sheet 20 is continuously supplied between the pair of belt-like surface sheets 20 and 20, and the belt-like surface sheet 20 is supplied. A belt-like porous sheet 10 is sandwiched between the two.
Next, alcohol L is continuously supplied and impregnated into the band-shaped porous sheet 10 between the pair of band-shaped surface sheets 20 and 20 by the nozzle 52.
At the same time, in a state where the belt-like porous sheet 10 and the belt-like topsheet 20 are overlapped, the edges B ₃ and B ₃ on both sides in the width direction are continuously sandwiched between the rotating first heat seal rolls 55 and 55. Vertical heat seal. Further, at a predetermined interval, the belt-like porous sheet 10 and the belt-like topsheet 20 are transversely heat-sealed by being sandwiched along the width direction by the rotating second heat-sealing rolls 54, 54, and transverse heat-sealing is performed. forming a part _{B 2.} Here, since the non-liquid permeable air-permeable layer 22 of the surface sheet 20 made of a polyolefin-based resin material also has heat weldability, it can be heat sealed with the porous sheet 10. Thereby, the strip | belt-shaped alcohol evaporation tool 6b by which alcohol L was enclosed by the area | region enclosed by the heat seal part of the strip | belt-shaped porous sheet 10 and the strip | belt-shaped surface sheet 20 is obtained.
Thereafter, a strip of alcohol transpiration devices 6b, and cut at each lateral heat-sealed portion B _2, to obtain a separate alcohol transpiration equipment 6.

In the alcohol evaporation tools 1 to 6 of the first to sixth embodiments described above, the members that hold the alcohol L are the porous sheets 10 and 30, and therefore when the strip-like alcohol evaporation tools 1 b to 6 b are cut. Even if the cutting position shifts, the alcohol holding material will not leak out. In addition, the alcohol retaining material does not leak when the consumer cuts it by mistake.
Moreover, when manufacturing the said alcohol evaporation tools 1-6, it is not necessary to prepare gel etc. previously. Moreover, the alcohol evaporating tools 1 to 6 using the heat-weldable porous sheets 10 and 30 continuously absorb and absorb the alcohol L to the porous sheets 10 and 30 using a known liquid filling and packaging machine. In addition, since it is continuously heat-sealed, high-speed packaging is possible. Therefore, the alcohol transpiration tools 1 to 6 are obtained with high productivity.

Furthermore, in the said alcohol evaporation tools 1-6, since the porous sheets 10 and 30 contain the alcohol absorptive resin, the absorption amount of alcohol L can be increased.
Moreover, in the said alcohol transpiration tools 1-6, since the alcohol absorptive resin of the porous sheets 10 and 30 hold | maintains alcohol L strongly, the surface sheet 20 is equipped with the impermeable liquid-permeable layer 22, Therefore Or even if the alcohol transpiration tools 1 to 6 are pressed during storage, the alcohol L is unlikely to ooze out of the alcohol transpiration tools 1 to 6. Therefore, the alcohol content is likely to be uniform, and the outside of the alcohol transpiration tool can be prevented from getting wet and sticky with alcohol.

In addition, the alcohol evaporation tool of this invention is not limited to embodiment mentioned above.
For example, the porous sheet 10 in the first, second, fifth, and sixth embodiments may not be a nonwoven fabric containing a fibrous alcohol-absorbing resin, but may be a polyethylene nonwoven fabric or a polypropylene nonwoven fabric. Good.
Further, in place of the nonwoven fabric containing fibrous alcohol-absorbing resin in the third and fourth embodiments, a nonwoven fabric not containing fibrous alcohol-absorbing resin (for example, polyethylene nonwoven fabric, polypropylene nonwoven fabric, polyester Nonwoven fabric etc.) and cotton may be used. However, when the alcohol-absorbing resin is not included, the alcohol absorption amount tends to decrease.
When the porous sheet 10 contains an alcohol-absorbing resin, the alcohol-absorbing resin may not be in the form of fibers, and may be in the form of particles, for example.
Moreover, as a form of the porous sheet 10, it is not limited to a nonwoven fabric, For example, porous bodies, such as a woven fabric and a foam, etc. may be sufficient.

The non-liquid permeable air-permeable layer 22 in the surface sheet 20 may be made of a resin material other than a polyolefin resin material, such as a fluororesin (for example, polytetrafluoroethylene), polysulfone, polyester, polyamide, polyimide, It may be a perforated sheet made of polyurethane. These resin materials do not have heat weldability, but can be sealed because the alcohol-impregnated sheet has heat weldability.
Further, the top sheet may not be a sheet including the air permeable layer 21 in which the air permeable holes 21a are formed and the non-liquid permeable gas permeable layer 22 made of an olefin resin material. 22 may be sufficient and only the air-permeable layer 21 may be sufficient.
Further, depending on the use of the alcohol transpiration tool, the top sheet may be a sheet that transmits liquid alcohol.
Moreover, in the alcohol evaporation tool of 2nd Embodiment, the surface sheet of one laminated body 2a may be a non-permeable sheet, for example, an aluminum vapor deposition sheet. Similarly, in the alcohol evaporation tool of the fourth embodiment, one surface sheet may be an aluminum vapor deposition sheet.

The alcohol transpiration tool of the present invention is used by being housed in a packaging bag in which, for example, breads, confectionery, various processed foods, dried foods, grains and the like are packaged. Specifically, an alcohol transpiration tool is stored in a packaging bag for packaging the food, etc., and the alcohol gas evaporated from the alcohol transpiration tool is brought into contact with the food to suppress the growth of microorganisms such as mold, Prevents aging.
In addition, the alcohol evaporating device is used by being housed in a packaging bag for hermetically wrapping articles such as medical tools such as various surgical tools and bandages, various clothing, food packaging materials, precision instruments, and the like. Specifically, an alcohol evaporating tool is stored in a packaging bag for packaging the packaged article, etc., and alcohol gas evaporated from the alcohol evaporating tool is brought into contact with the packaged article to cause mold, bacteria, etc. in the packaged article. It suppresses the growth of microorganisms, prevents aging, and kills insect larvae and eggs.
The alcohol transpiration tool can also be used as a deodorant for shoe boxes and the like by utilizing the sterilization and bacteriostatic effects of alcohol gas.
Furthermore, the alcohol transpiration tool can be used, for example, for removing astringency of fruits such as oysters, increasing sweetness of fruits, maintaining freshness of vegetables and the like.

It is a perspective view which shows 1st, 3rd, 5th embodiment of the alcohol transpiration tool of this invention. It is I-I 'sectional drawing of the alcohol evaporation tool of 1st Embodiment. It is a schematic diagram which shows an example of the liquid filling packaging machine used when manufacturing the alcohol evaporation tool of 1st and 3rd embodiment. It is a schematic diagram which shows the other example of the liquid filling packaging machine used when manufacturing the alcohol evaporation tool of 1st and 3rd embodiment. It is a perspective view which shows 2nd, 4th, 6th embodiment of the alcohol transpiration tool of this invention. It is II-II 'sectional drawing of 2nd Embodiment. It is a schematic diagram which shows an example of the liquid filling packaging machine used when manufacturing the alcohol evaporation tool of 2nd and 4th embodiment. It is a schematic diagram which shows the other example of the liquid filling packaging machine used when manufacturing the alcohol evaporation tool of 2nd and 4th embodiment. It is I-I 'sectional drawing of the alcohol transpiration tool of 3rd Embodiment. It is II-II 'sectional drawing of the alcohol transpiration tool of 4th Embodiment. It is I-I 'sectional drawing of the alcohol evaporation tool of 5th Embodiment. It is a schematic diagram which shows the liquid filling packaging machine used when manufacturing the alcohol evaporation tool of 5th Embodiment. It is II-II 'sectional drawing of the alcohol transpiration tool of 6th Embodiment. It is a schematic diagram which shows the liquid filling packaging machine used when manufacturing the alcohol evaporation tool of 6th Embodiment.

Explanation of symbols

1, 2, 3, 4, 5, 6 Alcohol evaporation tools 1b, 2b, 3b, 4b, 5b, 6b Band-shaped alcohol evaporation tools 1a, 2a, 3a, 4a Laminate 10, 30 Porous sheet 11 Non-woven fabric 12 Thermal welding Layer 12a Liquid permeable hole 20 Top sheet 21 Air permeable layer 21a Air permeable hole 22 Non-liquid permeable air permeable layer 50a, 50b, 50c, 50d, 60, 70 Liquid filling packaging machine 51 Supporting tool 52, 63, 72 Nozzle 53, 55, 73 1st heat seal roll 54, 74 2nd heat seal roll 54a Protrusion A Folded part B Edge part B Edge part parallel to ₁ folded part B ₂ Lateral heat seal part B ₃ Both sides of width direction Edge B ₄ Vertical heat seal part L Alcohol

Claims (12)

A laminated body obtained by laminating a surface sheet and an alcohol-impregnated sheet is an alcohol transpiration tool that is folded so that the alcohol-impregnated sheet is inside, and an edge other than the folded part is heat-sealed,
The top sheet is a sheet that transmits gaseous alcohol,
The alcohol-impregnated sheet is a sheet obtained by impregnating a porous sheet having heat welding properties with alcohol. A pair of laminates obtained by laminating a surface sheet and an alcohol-impregnated sheet are stacked so that the alcohol-impregnated sheet is on the inside, and an alcohol transpiration tool whose edges are heat-sealed,
The surface sheet of at least one laminate is a sheet that transmits gaseous alcohol,
The alcohol-impregnated sheet is a sheet obtained by impregnating a porous sheet having heat welding properties with alcohol. An alcohol transpiration tool in which a surface sheet is folded, an alcohol-impregnated sheet is sandwiched inside the folded surface sheet, and an edge other than the folded portion is heat-sealed,
The top sheet is a sheet that transmits gaseous alcohol,
The alcohol-impregnated sheet is a sheet obtained by impregnating a porous sheet having heat welding properties with alcohol. An alcohol transpiration tool in which an alcohol-impregnated sheet is sandwiched between a pair of surface sheets, and an edge is heat-sealed,
At least one of the top sheets is a sheet that transmits gaseous alcohol,
The alcohol-impregnated sheet is a sheet obtained by impregnating a porous sheet having heat welding properties with alcohol.   The alcohol transpiration tool according to any one of claims 1 to 4, wherein the top sheet is a sheet that does not transmit liquid alcohol.   The alcohol transpiration according to claim 5, wherein the top sheet includes a non-thermally permeable gas permeable layer in which a large number of gas permeable holes are formed, and a non-liquid permeable gas permeable layer, and the gas permeable layer is disposed on a surface side. Tools.   The alcohol transpiration tool according to any one of claims 1 to 6, wherein the porous sheet contains a heat-welding resin.   The alcohol transpiration tool according to any one of claims 1 to 7, wherein the porous sheet contains an alcohol-absorbing resin.   The alcohol transpiration tool according to claim 8, wherein both the heat-welding resin and the alcohol-absorbing resin are fibrous.   The alcohol transpiration tool according to claim 8 or 9, wherein the alcohol-absorbing resin is a polyacrylate. A folding step of folding back a strip-like laminate in which a surface sheet that permeates gaseous alcohol and a porous sheet having a heat-welding property are folded along the longitudinal direction so that the porous sheet is inside;
While supplying alcohol to the inside of the folded strip-shaped laminate, the edges parallel to the folded portion of the strip-shaped laminate are continuously heat-sealed at the same time, and the transverse heat is applied along the width direction at predetermined intervals. A method for producing a strip-shaped alcohol transpiration tool, characterized by comprising a sealing step of sealing and sealing alcohol.   A method for producing an alcohol transpiration tool, comprising: cutting a band-shaped alcohol transpiration tool obtained by the method for producing a strip-shaped alcohol transpiration tool according to claim 11 at a portion heat-sealed along a width direction.

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