JP2012116532A - Lamination film for packaging adhesive skin patch, and packaging bag of adhesive skin patch using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lamination film for packaging an adhesive skin patch and a packaging bag using the same by which the adhesive skin patch can be easily taken out and which does not damage cuttability.SOLUTION: The lamination film for packaging 10 of the adhesive skin patch is constituted by a lamination film 10" including a resin film, and includes a thin film layer 15' of a slip agent formed by applying the slip agent on one surface 14' as a sealing surface of the lamination film 10".

Description

  The present invention relates to a packaging film for packaging an adhesive for heart and the like and a packaging bag using the same.

  Conventionally, a patch such as a sheet-like patch 1 (see FIG. 8A) is obtained by applying a pressure-sensitive adhesive layer 3 containing a medicinal component on the surface of a base film 2 and coating a release paper 4 thereon. The sheet-like patch 1 is stored in a packaging bag 5.

  In such a conventional adhesive packaging bag 5, the adhesive base material film 2 inside the packaging bag 5 adsorbs the medicinal component of the adhesive layer 3 and expands, and as shown in FIG. The phenomenon that the material film 2 was larger than the release paper 4 and the pressure-sensitive adhesive layer 3 protruded from the periphery of the release paper 4 occurred.

  Thus, if the base film 2 expand | swells and the said adhesive layer 3 protrudes from the said release paper 4, the protruding adhesive layer 3 will closely_contact | adhere to inner surface 5 'of the packaging bag 5, As a result, packaging When the bag 5 is opened through the perforation 6 and the internal sheet-like patch 1 is gripped and taken out in the direction of arrow A, the adhesive (adhesion) between the pressure-sensitive adhesive layer 3 and the inner surface 5 ′ has a large resistance. Thus, there is a problem that it is very difficult to take out the sheet-like patch 1.

  Conventionally, in order to improve the ease of taking out the contents stored in the packaging bag, it has been proposed to add a slip agent to the resin film constituting the inner surface of the packaging bag (Patent Documents 1 and 2). ).

Japanese Utility Model Sho 61-153742 JP 2008-254758 A

  By the way, in the packaging material of patent documents 1 and 2, it is for improving the pick-up property of fish surimi or the filling property of a bag containing a liquid such as an infusion solution. When the agent layer 3 is in direct contact with the inner side 5 ′ of the packaging bag 5, the take-out property is not improved.

  Moreover, in the laminated film for packaging adhesives such as the sheet-like patch 1, it is desirable that the easy-cut property at the time of opening using the perforation 6 is also good.

  The present invention is a laminated film for packaging an adhesive, and even if the adhesive layer of the adhesive adheres to the film surface, the adhesive is easily taken out by reducing the adhesion strength between the adhesive layer and the film surface. An object of the present invention is to provide a laminated film for packaging a patch and a packaging bag for a patch using the same.

In order to solve the above conventional problems, the present invention
1stly, it is a laminated film for packaging of the adhesive agent comprised by the laminated film containing a resin film, Comprising: The adhesive agent characterized by applying a slip agent to one surface of the said laminated film It is composed of a laminated film for packaging.

  One surface of the laminated film can be, for example, the surface of an extruded polyethylene film as a sealing surface. The laminated film containing the resin film is, for example, a polyethylene terephthalate film (11) for the first layer, an extruded polyethylene film (12) for the second layer, an aluminum foil film (13) for the third layer, and a sealing surface for the fourth layer. A four-layer laminated film consisting of an extruded polyethylene film (14) as The slip agent can be applied in a thin film on the surface of the extruded polyethylene film (14) by a technique such as printing. When configured in this manner, when the adhesive layer of the patch such as a sheet-like patch is in close contact with the surface coated with the slip agent, the adhesion strength can be reduced, so that the adhesive can be taken out easily. A laminated film for packaging a good adhesive can be realized.

  2ndly, the film which comprises one surface of the said laminated | multilayer film is an extruded polyethylene film as a sealing surface laminated | stacked by extrusion molding, and the said slip agent was apply | coated to the said surface of the said extruded polyethylene film It is comprised with the laminated | multilayer film for packaging of the adhesive agent of said 1st characterized by the above-mentioned.

  Thus, since the slip agent was thinly coated on the surface of the extruded polyethylene film as the sealing surface of the laminated film, the adhesion strength between the surface and the adhesive layer of the adhesive without damaging the function as the sealing surface Can be reduced.

  3rdly, the said slip agent is comprised from the mixture film of the fatty acid amide and isopropyl alcohol, or the laminated film for packaging of the adhesive agent as described in said 1 or 2 characterized by the above-mentioned.

  4thly, the said slip agent is what was apply | coated to the said one surface of the said laminated | multilayer film by the method of gravure printing, offset printing, or flexographic printing in the shape of a thin film. It is comprised by the laminated film for packaging of the adhesive agent in any one of these.

  Coating in the form of a thin film refers to coating so that a thin film layer (15 ') having a thickness of, for example, 1 μm to 2 μm is formed by a slip agent. If comprised in this way, a slip agent can be applied with a conventionally well-known printing method, and it is not necessary to install a new apparatus in applying a slip agent.

  Fifth, the slip agent has a thickness of 1 μm to 2 μm, and is constituted by the laminated film for packaging a patch according to any one of the first to fourth aspects.

  Thus, since the slip agent thin film is extremely thin, the function as a seal surface to which the slip agent is applied (for example, a seal surface of an extruded polyethylene film) is not impaired.

  Sixth, the laminated film is characterized in that the first layer is a polyethylene terephthalate film, the second layer is an extruded polyethylene film, the third layer is an aluminum foil film, and the fourth layer is an extruded polyethylene film. It is comprised by the laminated | multilayer film for packaging of the adhesive agent in any one of 1-5.

  If comprised in this way, the laminated | multilayer film for packaging which reduced the adhesive strength with the adhesive layer of a patch can be obtained, maintaining the function as a packaging material of a patch.

  Seventh, the thickness of the polyethylene terephthalate film of the first layer is 9 μm to 25 μm, the thickness of the extruded polyethylene film of the second layer is 13 μm to 25 μm, the thickness of the aluminum foil film of the third layer is 7 μm to 28 μm, the fourth The extruded polyethylene film of the layer has a thickness of 13 μm to 35 μm, and is constituted by the laminated film for packaging a patch according to the sixth aspect.

  When configured in this way, it is possible to prevent the film from wrinkling when applying a slip agent as a laminating packaging laminate film, and realize a packaging laminate film for adhesives with good easy-cut properties can do.

  Eighth, the two laminated films for packaging are configured by sealing the periphery of both films with one surface of the laminated film coated with the slip agent facing each other. It is comprised by the packaging bag of the adhesive agent using the laminated film for packaging of the adhesive agent in any one of said 1-7 characterized by these.

  If comprised in this way, even if the adhesive layer of a patch has adhered to the inner surface of a packaging bag, the adhesive strength can be reduced, the take-out property of a patch can be made favorable, and easy-cut property is also favorable. An adhesive packaging bag can be realized.

  Since the adhesive strength of the adhesive can be lowered when the adhesive layer of the adhesive adheres to the surface on which the slip agent has been applied as described above, the adhesive has good adhesive extractability. The laminated film for packaging can be realized.

  In addition, since the slip agent was applied thinly on the surface of the extruded polyethylene film as the sealing surface of the laminated film, the adhesion strength between the surface and the adhesive layer of the adhesive was reduced without impairing the function as the sealing surface. can do.

  Moreover, the laminated | multilayer film for packaging which reduced the adhesive strength with the adhesive layer of an adhesive can be obtained, maintaining the function as a packaging material of an adhesive with the laminated film.

  In addition, when applying a slip agent by a technique such as gravure printing, the slip agent can be applied smoothly without causing wrinkles on the laminated film, and the packaging of the adhesive with good easy-cut properties is also possible. A laminated film can be realized.

  Moreover, even if the adhesive layer of the adhesive is in close contact with the inner surface of the packaging bag, the adhesive strength can be reduced, the adhesive can be taken out better, and the adhesive packaging can be easily cut. A bag can be realized.

1 is a sectional view of a laminated film for packaging an adhesive according to the present invention, wherein (a) and (b) are sectional views of the laminated film in the production process, and (c) is a sectional view of the finished laminated film for packaging. It is. It is a block diagram which shows the manufacturing process of a film same as the above. It is explanatory drawing of the manufacturing process which shows the manufacturing method of a film same as the above. It is explanatory drawing which shows the coating process of the slip agent of a film same as the above. It is a front view of the packaging bag of the adhesive agent which uses a film same as the above. It is a partially expanded sectional view of the packaging bag of a patch using a film same as the above, and a sheet-like patch. It is explanatory drawing which shows the mode of T-type peeling experiment of a film and a packaging bag same as the above. (A) is a partially cutaway front view of a packaging bag of a patch containing a sheet-like patch, and (b) is a view of the packaging bag showing the state in which the base film of the sheet-like patch is expanded in the packaging bag. It is a partially cutaway front view.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  FIG.1 (c) shows the laminated film 10 for packaging of the adhesive agent which concerns on this invention, The 1st layer film which comprises the outermost side in a packaging bag is the polyethylene terephthalate (PET) film 11 (thickness is 16 micrometers, for example) ), The second layer is an extruded polyethylene (PE) film 12 (thickness is, for example, 15 μm), the third layer is an aluminum foil film 13 (thickness is, for example, 10 μm), and the fourth layer is an extruded polyethylene (PE) film 14 (thickness is These four-layer films are referred to as a four-layer laminated film 10 ″ (FIG. 1 (b)). One surface of the laminated film 10 ″ (when forming a packaging bag) The slip agent 1 on the surface (seal surface) 14 'of the extruded polyethylene film 14 of the fourth layer constituting the innermost layer). It formed coating film layer 15 ', for example by printing (FIG. 1 (c)).

The slip agent 15 is made of, for example, a liquid (mixture) in which 1% to 5% of fatty acid amide (RCONH ₂ ) and 90% to 100% of isopropyl alcohol ((CH ₃ ) ₂ CHOH) are mixed. Yes, a thin film layer 15 ′ having a thickness of 1 μm to 2 μm is applied to the surface 14 ′ of the extruded polyethylene film 14 of the fourth layer by a technique such as gravure printing. The slip agent may be 100% isopropyl alcohol alone. In addition to the gravure printing method, other known printing methods such as offset printing and flexographic printing can be used for the application of the slip agent, or other methods such as hand coating may be used.

  When manufacturing such a laminated film 10 for packaging (see FIG. 2), first, an exterior design is printed on the first layer of polyethylene terephthalate film 11 constituting the outermost layer by, for example, gravure printing (FIG. 2, step). 1) After that, a polyethylene resin melted between the polyethylene terephthalate film 11 and the film 13 made of the aluminum foil is extruded by a poly sand laminating method, and the polyethylene terephthalate film 11, the extruded polyethylene film 12 and the aluminum foil are made of A three-layer laminated film 10 ′ is formed from the film 13 (FIG. 1A).

  Further, the extruded polyethylene film 14 of the fourth layer is formed by extruding the molten polyethylene resin on the surface of the aluminum foil film 13 of the three-layer laminated film 10 ′ by the method of polylaminate, and the four-layer laminated film 10. "Is formed (FIG. 1B, FIG. 2, step 2).

  Thereafter, the slip agent 15 is printed (coated) by, for example, gravure printing on the surface 14 ′ of the fourth layer extruded polyethylene film 14 of the four layer laminated film 10 ″ formed by the extrusion molding. (FIG. 2, step 3) When the slip agent is applied by gravure printing, the thickness of the applied slip agent is, for example, 1 μm to 2 μm.

  Since the packaging laminated film 10 (FIG. 1C) coated with the slip agent is formed by the above three steps, the packaging bag 35 (see FIG. 5) is processed by cutting the film 10 into a predetermined length. Formed (FIG. 2, step 4).

  Next, the method for producing the four-layer laminated film 10 ″ by extrusion lamination in the second step will be described in more detail.

  In FIG. 3, 11a is a roll of the polyethylene terephthalate film 11 in which the printing in the above step 1 is completed. After the film 11 is pulled out from the roll 11a, in the coating section 20, the inside of the tank is placed on one surface of the film 11. After the anchor coating agent 21 is applied by the application roll 22 and dried by the dryer 23, the poly sand laminating section 24 is pulled out from the one surface 11 ′ of the polyethylene terephthalate film 11 and the roll 13 a of the aluminum foil film 13. The molten polyethylene resin is extruded from the extruder 25 between the one surface 13 ′ of the aluminum foil film 13, laminated, and cooled by a cooling roll 26 to solidify the polyethylene resin, and the extruded polyethylene having a thickness of 15 μm. Film 12 Formed, thereby forming a laminated film 10 'of the polyethylene terephthalate film 11 and the extruded polyethylene film 12 and the third layer by a film 13 of the aluminum foil.

  Further, the three-layer laminated film 10 ′ is drawn out to the next-stage polylaminate portion 27, and the polylaminate portion 27 applies the extruder 28 to the surface 13 ′ of the aluminum foil film 13 of the three-layer laminated film 10 ′. The melted polyethylene resin is extruded and laminated, and cooled by a cooling roll 29 to solidify the polyethylene resin to form a polyethylene film 14 having a thickness of 30 μm, thereby forming the aluminum film 13 of the three-layer film 10 ′. A four-layer laminated film 10 ″ is formed by laminating an extruded polyethylene film 14 on one surface 13 ′. The four-layer laminated film 10 ″ is wound on a winding shaft 29 as a roll 10a ″.

  Next, as shown in FIG. 4, the four-layer film 10 ″ is pulled out from the roll 10a ″ of the four-layer laminated film 10 ″, and gravure printing is performed on one surface 14 ′ of the extruded polyethylene film 14 of the film 10 ″. The slip agent 15 is applied by this method.

  In FIG. 4, 30 is a gravure printing machine, and the liquid slip agent 15 is usually charged into a tank 31 into which printing ink is charged. The printing machine 30 includes a tank 31 in which the slip agent 15 is charged, a plate cylinder 32 that is rotatably installed with the lower half immersed in the tank 31, and the surface of the plate cylinder 32 on the surface of the printing cylinder 32. An impression cylinder 33 for pressure-bonding the film is formed, and the laminate cylinder 10 ″ is passed between the plate cylinder 32 and the impression cylinder 33 so that the plate cylinder 32 and the impression cylinder 33 are in the direction of arrow B in FIG. The laminated film 10 ″ is fed in the direction of arrow C, and the slip agent 15 is applied to the surface (one surface) 14 ′ of the laminated film 10 ″.

  The film 10 ″ coated with the slip agent 15 is introduced into a drying box 33, and the slip agent is dried, so that the extruded polyethylene film 14 of the fourth layer is formed as shown in FIG. The laminated film 10 for packaging in which the thin film layer 15 ′ of the slip agent 15 having a thickness of about 1 μm to 2 μm is formed on the surface 14 ′ is formed on the winding unit 34 as the roll 10a. It will be.

  If the plate cylinder 32 of the printing press 30 is gravure printing, an intaglio is formed on the surface thereof, and the slip agent remaining in the recesses of the intaglio is applied to the entire surface 14 'of the polyethylene film 14 with a uniform thickness. Is done. The plate cylinder 32 may be a plate cylinder having no indentations, as long as it can be applied evenly to the surface 14 ′ of the polyethylene film 14 in addition to the one formed with an intaglio. As described above, the printing method as the slip agent coating means is not limited to the gravure printing, but may be applied by a known offset printing method or a known flexographic printing method, or by hand coating. You may work.

  After that, perforations 6 are cut for each predetermined length of the packaging laminated film 10, the packaging laminated film 10 is cut into a predetermined length, and the slip agent 15 of the two packaging laminated films 10 after cutting is obtained. The surfaces (seal surfaces) of the coated extruded polyethylene film 14 are opposed to each other as the inner surface of the packaging bag (see FIG. 5), and the packaging bag is formed by heat-sealing the three sides 35a to 35c. Thereafter, the sheet-like patch 1 is put in the packaging bag and the remaining one side 35d is heat-sealed, whereby the packaging bag 35 for the adhesive is formed (FIG. 5). At this time, the extruded polyethylene film 14 which is a sealing surface is formed with a thin film layer 15 'by the slip agent 15. However, since the slip agent 15 is extremely thin (1 μm to 2 μm), the slip agent 15 is applied. Both surfaces can be sealed by closely contacting the worked surfaces and applying heat.

  In the adhesive packaging bag 35, as shown in FIG. 6, the base film 2 of the internal sheet-like patch 1 absorbs the medicinal component of the adhesive layer 3 and expands, whereby the adhesive layer 3 is expanded. Even if the pressure-sensitive adhesive layer 3 protruding from the release paper 4 contacts the inner surface 35 ′ of the packaging bag 35, the thin film layer 15 ′ of the slip agent 15 is formed on the surface of the extruded polyester film 14 on the inner surface of the packaging bag 35. , The protruding pressure-sensitive adhesive layer 3 ′ does not directly contact the extruded polyethylene film 14, but contacts the slip agent thin film layer 15 ′ as shown in FIG. 6.

  For this reason, the adhesive strength between the pressure-sensitive adhesive layer 3 of the sheet-like patch 1 and the inner film 14 of the packaging bag 35 becomes very low (for example, 1.7 N / 15 mm), and the pressure-sensitive adhesive layer of the patch 1 3 does not strongly adhere to the inner surface 35 ′ of the packaging bag 35 (the thin film layer 15 ′ of the slip agent 15 of the extruded polyester film 14).

  Therefore, when taking out the said sheet-like patch 1, if the said sheet-like patch 1 is hold | gripped and it pulls out in the opening part direction of the packaging bag 35, the thin film layer 15 'of the said slip agent 15 and the said adhesive layer 3 will be shown. Since (3 ′) is easily separated, the sheet-like patch 1 can be easily taken out from the packaging bag 35 by easily separating the thin film layer 15 ′ of the slip agent 15 and the pressure-sensitive adhesive layer 3 from each other. .

  Next, the effect | action by the thickness of each layer of the said laminated film 10 for packaging is described.

  When the slip agent 15 is applied to the laminated film by the above gravure printing method, there is a problem that wrinkles are generated in the laminated film to which the slip agent is applied during the coating process of the slip agent 15 in FIG. As a result of various tests, it has been found that even if wrinkles occur in the laminated film, there is no problem with the effect of the slip agent 15 (slip property of the adhesive layer 3 of the sheet-like patch 1). When wrinkles occur in the film, there is a problem in appearance as a packaging bag.

  Thus, the inventors of the present invention have conducted various experiments and found that the generation of the wrinkles can be eliminated by increasing the thickness of the laminated film to which the slip agent 15 is applied and raising the thickness of the film.

When the thickness of the film is increased, three layers (for example, polyethylene terephthalate film (thickness 12 μm) / extruded polyethylene film (thickness 15 μm) / aluminum foil film (thickness 7 μm)) are formed by the sand laminating method in step 2. A laminated low-density polyethylene (L-) is formed on the aluminum foil film of a three-layer laminated film through an extruded polyethylene film (thickness: 15 μm) by a sand laminating method. LDPE) film (thickness 40 μm) was formed to form a laminated film of five layers, and the slip agent 15 was applied to the surface of the L-LDPE film by the gravure printing technique.
As a result, the generation of wrinkles in the laminated film could be prevented, but the problem was that the film was difficult to cut because the total thickness of the film increased.

  Therefore, the L-LDPE film (thickness 40 μm) is abolished, and instead of increasing the thickness of the polyethylene terephthalate film, the aluminum foil film and the extruded polyethylene film as the fourth layer, An attempt was made to achieve easy cutting.

  As a result, the L-LDPE film was abolished, the thickness of the polyethylene terephthalate film was increased by 4 μm, the thickness of the aluminum foil was increased by 3 μm, the thickness of the extruded polyethylene film as the fourth layer was increased by 15 μm, and the polyethylene terephthalate film (thickness 16 μm) 4 layer laminated film (extruded polyethylene film (thickness 15 μm) / aluminum foil film (thickness 10 μm) / extruded polyethylene film (thickness 30 μm) (slip agent coating)) 10), it was possible to obtain the laminated film 10 for packaging which gave the waist to the laminated film 10 for packaging, eliminated wrinkling of the film during gravure printing, and realized easy cutability of the film.

  Moreover, the thickness of the laminated film 10 for packaging is such that the thickness of the polyethylene terephthalate film of the first layer is 9 μm to 25 μm (preferably 14 μm to 18 μm), and the thickness of the extruded polyethylene film of the second layer is 13 μm to 25 μm (preferably 13 μm to 17 μm), the thickness of the aluminum foil film of the third layer is 7 μm to 28 μm (preferably 8 μm to 12 μm), and the thickness of the extruded polyethylene film of the fourth layer is 13 μm to 35 μm (preferably 28 μm to 32 μm). Even with the thickness, the same effect as described above can be exhibited.

(1) Example (T-shaped peeling experiment)
As shown in FIG. 7, a base film 2 and a band-like patch 1 ′ having a width (horizontal width) of 15 mm obtained by coating the adhesive layer 3 of the adhesive on the film 2, and the width of the following configuration according to the present invention In order to form the experimental packaging material 36 in which the laminated film 10 for packaging having a width of 15 mm is in close contact and forcibly expand the base film 2, the experimental packaging material 36 is heated to a temperature of 40 ° C. and a humidity of 80%. When the strip-shaped patch 1 ′ and the packaging laminated film 10 are separated in the opposite directions (arrows D and D ′ directions) after being left for 6 months, the strip-shaped patch 1 'And the adhesion strength of the laminated film 10 for packaging were measured. In the experiment, an adhesion strength test was performed on four experimental packaging materials 36, and an average value of the adhesion strength was obtained. The measurement results are shown in Table 1.

(Configuration of laminated film for packaging used in the experiment)
(Configuration) Laminated film 10 for packaging shown in FIG.
Polyethylene terephthalate film 11 (thickness 16 μm) / extruded polyethylene film 12 (thickness 15 μm) / aluminum foil film 13 (thickness 10 μm) / extruded polyethylene film 14 (thickness 30 μm) (slip agent 15 coating (thickness 1 μm to 2 μm))

(2) Comparative example (T-peeling experiment)
Using a laminated film having a width of 15 mm (width) described below that is not coated with a slip agent, it is bonded to a belt-like patch 1 ′ having a width of 15 mm (width) similar to (1) above, and the base film 2 is forcibly expanded. Therefore, in the same manner as in (1) above, this comparative experimental packaging material is left in a constant temperature and humidity chamber at a temperature of 40 ° C. and a humidity of 80% for 6 months. The adhesion strength between the band-like patch 1 ′ and the laminated film when separated in directions opposite to each other (arrows D and D ′ directions) was measured. In the experiment, adhesion strength tests were performed on four comparative experimental packaging materials, and an average value of adhesion strength was obtained. Table 2 shows the measurement results.

(Configuration of laminated film used in comparative experiments)
(Configuration) Laminated film polyethylene terephthalate film (thickness 16 μm) / extruded polyethylene film (thickness 15 μm) / aluminum foil film (thickness 10 μm) / extruded polyethylene film (thickness 30 μm) (slip agent coating) None)

(3) Evaluation The adhesive strength between the band-like patch 1 ′ and the laminated film 10 for packaging is 5.9 N / 15 mm or less on the premise that the sheet-like patch 1 can be easily taken out even by an elderly person whose grip strength has decreased. The adhesion strength was targeted.

  As is apparent from the results of the above examples, according to the laminated film 10 for packaging according to the present invention, the adhesion strength can be 1.8 N / 15 mm which is significantly lower than 14.5 N / 15 mm of the comparative example, The target of 5.9 N / 15 mm or less was cleared.

  Moreover, when the packaging material 35 shown in FIG. 5 was produced by the laminated film 10 for packaging having the configuration of the above embodiment, and the user actually took out the sheet-like patch 1 from the packaging bag 35, the test was smoothly performed without any problems. I was able to take it out. In addition, by applying (printing) a slip agent to the surface of the extruded polyethylene film 14 from the outside, it is possible to maintain the function of the slip agent such as slip properties (smoothness of the film 14 surface) over a long period of time. I understood.

  In addition, the medicinal effect of the patch by the slip agent 15 was not deteriorated.

  In addition, when a cut test by the perforation 6 was performed by the user, it was possible to cut smoothly and the easy-cut property of the packaging bag 35 was good.

  As described above, when the adhesive layer 3 of the adhesive such as the sheet-like patch 1 is in close contact with the surface on which the slip agent 15 is applied, the adhesive strength can be greatly reduced. It is possible to realize a laminated film for packaging an adhesive with good adhesive removal.

  Further, since the slip agent 15 is thinly coated on the surface of the extruded polyethylene film 14 as the sealing surface of the packaging laminated film 10, the surface 14 and the adhesive agent can be used without impairing the function of the film 14 as the sealing surface. The adhesive strength with the pressure-sensitive adhesive layer 3 can be reduced.

  Further, the slip agent 15 can be applied by a conventionally known printing method (for example, gravure printing), and it is not necessary to install a new device when applying the slip agent 15.

  Further, since the thin film layer 15 ′ of the slip agent 15 is extremely thin, the function such as the heat sealing property of the sealing surface (for example, the surface 14 ′ of the extruded polyethylene film 14) to which the slip agent 15 is applied is not impaired.

  The laminated film for packaging of the present invention uses an aluminum foil so as not to miss the medicinal components of the adhesive, and uses a polyethylene terephthalate film on the surface to prevent pinholes from the outside, so as to secure a sealing surface. The other surface uses polyethylene film. Thus, the packaging laminated film which reduced the adhesive strength with the adhesive layer 3 of a patch can be obtained, maintaining the function of the packaging material required as a laminated film for packaging a patch.

  In addition, it is possible to realize a laminated film for packaging of adhesives that can prevent wrinkles and the like from being applied to the film during application of the slip agent 15 as a loose packaging laminated film, and also has good easy-cut properties. .

In addition, even if the adhesive layer 3 of the adhesive is in close contact with the inner surface of the packaging bag, the adhesive strength can be reduced to improve the ability to take out the adhesive, and the packaging of the adhesive has good easy-cut characteristics. A bag can be realized.
In addition, compared with the conventional case where the slip agent is mixed into the film raw material, the effect of the slip agent on the surface of the sealing surface is increased for a long time by applying the slip agent to the surface of the sealing surface of the laminated film. Can be maintained for a long time.

  Since the present invention provides a laminated film for packaging a patch with good removability such as a sheet-like patch and a packaging bag for the patch, packaging of various other shipping agents for hearts and haps It can be widely used as a laminated film and packaging bag. Moreover, it can apply widely to the laminated film for packaging which comprises a heat seal layer.

DESCRIPTION OF SYMBOLS 1 Sheet-like patch 10 Laminated film for packaging 10 ', 10 "Laminated film 11 Polyethylene terephthalate film 12 Extruded polyethylene film 13 Film made of aluminum foil 14 Extruded polyethylene film 15 Slip agent 15' Thin film layer

Claims (8)

It is a laminated film for packaging an adhesive made of a laminated film including a resin film,
A laminated film for packaging adhesives, wherein a slip agent is applied to one surface of the laminated film. The film constituting one surface of the laminated film is an extruded polyethylene film as a sealing surface laminated by extrusion molding.
The laminated film for packaging adhesive patches according to claim 1, wherein the slip agent is applied to the surface of the extruded polyethylene film.   The laminated film for packaging adhesive patches according to claim 1 or 2, wherein the slip agent is composed of a mixture of fatty acid amide and isopropyl alcohol or isopropyl alcohol.   The slip agent is applied to the one surface of the laminated film in a thin film shape by a gravure printing, offset printing, or flexographic printing method. A laminated film for packaging the described adhesive.   The laminated film for packaging adhesive patches according to any one of claims 1 to 4, wherein the slip agent has a thickness of 1 µm to 2 µm.   6. The laminated film according to claim 1, wherein the first layer is a polyethylene terephthalate film, the second layer is an extruded polyethylene film, the third layer is an aluminum foil film, and the fourth layer is an extruded polyethylene film. A laminated film for packaging a patch according to any one of the above.   The thickness of the polyethylene terephthalate film of the first layer is 9 μm to 25 μm, the thickness of the extruded polyethylene film of the second layer is 13 μm to 25 μm, the thickness of the film of the aluminum foil of the third layer is 7 μm to 28 μm, the extruded polyethylene of the fourth layer The laminated film for packaging adhesive patches according to claim 6, wherein the film has a thickness of 13 μm to 35 μm.   Two sheets of the packaging laminated film are constituted by sealing the periphery of both films in a state where one surface of the laminated film coated with the slip agent is opposed to each other. The packaging bag of the adhesive agent using the laminated film for packaging of the adhesive agent in any one of Claims 1-7.

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