WO2012014585A1 - テープ材用支持フィルムおよびテープ材 - Google Patents
テープ材用支持フィルムおよびテープ材 Download PDFInfo
- Publication number
- WO2012014585A1 WO2012014585A1 PCT/JP2011/063656 JP2011063656W WO2012014585A1 WO 2012014585 A1 WO2012014585 A1 WO 2012014585A1 JP 2011063656 W JP2011063656 W JP 2011063656W WO 2012014585 A1 WO2012014585 A1 WO 2012014585A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- support
- tape material
- barrier layer
- film
- tape
- Prior art date
Links
- 239000000463 material Substances 0.000 title claims abstract description 71
- 230000004888 barrier function Effects 0.000 claims abstract description 81
- 238000007127 saponification reaction Methods 0.000 claims abstract description 21
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- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 20
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- 150000002484 inorganic compounds Chemical class 0.000 claims abstract description 9
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- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 19
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- 239000002390 adhesive tape Substances 0.000 description 9
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- 229920000742 Cotton Polymers 0.000 description 1
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- HECLRDQVFMWTQS-UHFFFAOYSA-N Dicyclopentadiene Chemical compound C1C2C3CC=CC3C1C=C2 HECLRDQVFMWTQS-UHFFFAOYSA-N 0.000 description 1
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- 239000007864 aqueous solution Substances 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 description 1
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- VZWXIQHBIQLMPN-UHFFFAOYSA-N chromane Chemical compound C1=CC=C2CCCOC2=C1 VZWXIQHBIQLMPN-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/02—Adhesive bandages or dressings
- A61F13/0246—Adhesive bandages or dressings characterised by the skin-adhering layer
- A61F13/0253—Adhesive bandages or dressings characterised by the skin-adhering layer characterized by the adhesive material
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
- A61L15/58—Adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2429/00—Presence of polyvinyl alcohol
- C09J2429/001—Presence of polyvinyl alcohol in the barrier layer
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2475/00—Presence of polyurethane
- C09J2475/006—Presence of polyurethane in the substrate
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
- Y10T428/2848—Three or more layers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
- Y10T428/31573—Next to addition polymer of ethylenically unsaturated monomer
- Y10T428/31576—Ester monomer type [polyvinylacetate, etc.]
Definitions
- the present invention relates to a support film for tape material, and more particularly to a support film for tape material having barrier properties and a tape material using the same.
- Tape materials in which an adhesive layer is formed on one side of a sheet-like or film-like support are widely used for various uses such as medical use and industrial use.
- a plasticizer or the like may be blended in addition to the adhesive material.
- the material of the support there is a concern about the adverse effect of the plasticizer adsorbing. Therefore, it is preferable that at least the surface in contact with the adhesive layer is provided with a barrier property.
- a gas barrier film described in Patent Document 1 is known as a film material having barrier properties.
- a barrier coat layer is formed by applying a barrier coating agent in which a layered inorganic compound montmorillonite and a water-soluble polymer compound are mixed on one side of a plastic base film. .
- the tape material may be used in harsh environments such as being in contact with liquid or being immersed in a state where it is affixed to an object.
- the gas barrier film described in Patent Document 1 since the gas barrier film described in Patent Document 1 is not originally intended for use in such an environment, it cannot be said that the adhesion between the support and the barrier coat layer is sufficient. Therefore, when the gas barrier film described in Patent Document 1 is applied to the tape material as it is, peeling occurs between the support and the barrier coat layer, and a situation such that the harsh use environment cannot be sufficiently tolerated occurs. There is a problem.
- the present invention has been made in view of the above circumstances, and an object thereof is to provide a support film for tape material and a tape material that can be used while maintaining good barrier properties even under harsh environments.
- a first aspect of the present invention is a support film for a tape material used for a tape material, comprising a film-like support made of polyurethane, polyvinyl alcohol and a layered inorganic compound, and one surface of the support
- the saponification degree of the polyvinyl alcohol is set to 70% or more and 95.5% or less.
- the layered inorganic compound is montmorillonite.
- the tape material which is a 2nd aspect of this invention is equipped with the support film for tape materials of this invention, and the adhesion layer formed on the said barrier layer and on the opposite side to the said support body. It is characterized by that.
- the support film for tape material and the tape material of the present invention can be used while maintaining good barrier properties even in harsh environments.
- FIG. 3 is a diagram showing a procedure of an experiment for examining the relationship between the degree of saponification of a water-soluble polymer compound and the adhesion between a support and a barrier layer. It is a figure which shows one procedure of the same experiment. It is a figure which shows one procedure of the same experiment. It is a figure which shows one procedure of the same experiment. It is a figure which shows one procedure of the same experiment. It is a figure which shows one procedure of the same experiment. It is a figure which shows one procedure of the same experiment.
- the tape material described in the present embodiment is configured to include the support film for tape material of the present invention (hereinafter simply referred to as “support film”), industrial, packaging, protection, label, It can be used as an adhesive tape in various fields such as masking, sanitary materials such as paper diapers, medical applications such as adhesive bandages and transdermal administration, cosmetics, and households. Furthermore, the following are mentioned as a typical example.
- support film for packaging, there is an adhesive tape to lock the packaging material, and because it can be stretched, it will break or damage the packaging material even if force is applied by transportation etc. in the packaged state In addition, since the barrier property can be satisfactorily maintained in the stretched state, the outside is not contaminated during transportation.
- FIG. 1 is a cross-sectional view in the thickness direction of the tape material 1 of the present embodiment.
- the tape material 1 includes a support film 10, an adhesive layer 20 formed on one surface of the support film 10, and a peeling member 30 that covers the adhesive layer.
- the support film 10 includes a support 11 formed in a film shape containing polyurethane, and a barrier layer 12 formed on one surface of the support 11.
- the support 11 has flexibility and can be extended to a predetermined maximum extension rate that increases by 10 percent (%) or more in size. A specific value of the maximum elongation rate may be set as appropriate based on the use of the tape material 1 or the like.
- the polyurethane forming the support 11 is not particularly limited, and those conventionally used for polyurethane films can be used, and can be appropriately selected depending on the application. For example, polyether polyurethane, polyester polyurethane, polycarbonate polyurethane and the like can be mentioned.
- the thickness of the support 11 is 10 micrometers ( ⁇ m) to 200 ⁇ m, and is preferably 15 ⁇ m or more and 100 ⁇ m or less. If the thickness is less than 10 ⁇ m, it is too thin and difficult to handle, and if it is more than 200 ⁇ m, the flexibility is lowered and the original flexibility is not sufficiently exhibited.
- the support 11 can include a peelable film called a release film.
- a peelable film called a release film.
- the support is stretched in the step of applying the barrier layer 12, so that the release film and the support (for example, polyurethane as a support) are laminated. Then, expansion and contraction can be suppressed and processing can be facilitated.
- the handleability of a tape material improves.
- This release film can be peeled off from the support after the tape material has been applied to the object, and the support 11 exhibits its original flexibility after peeling.
- the material of the release film is not particularly limited, but generally use a silicone-treated PET film, a polyolefin film with good peelability, a laminate of paper and polyethylene, which can be peeled later without stretching. I can do it.
- the barrier layer 12 is formed including montmorillonite, which is a layered inorganic compound, and polyvinyl alcohol (PVA), which is a water-soluble polymer compound.
- the crystal structure of montmorillonite forms a layered structure based on three layers including two tetrahedral sheets and one octahedral sheet.
- the cation of the tetrahedral sheet is only Si, and the cation Al of the octahedral sheet is partially substituted with Mg.
- the unit crystal layer is negatively charged, and cations such as Na + , K + , Ca 2+ , Mg 2+ , H + enter the crystal layer to compensate for the negative charge.
- the type of these cations can be used without any particular limitation.
- the barrier layer 12 is formed by adding and dispersing a montmorillonite in an aqueous solution in which PVA is dissolved in water, and then applying a barrier coating agent prepared by adding a lower alcohol by a gravure coating method or a roll coating method. be able to. If necessary, an anchor coat layer may be formed on the support 11 and the barrier layer 12 may be formed via the anchor coat layer. Similarly, the barrier layer 12 may be formed after surface treatment on the support 11. As the surface treatment, corona discharge treatment or plasma discharge treatment is preferable. Among these, the corona discharge treatment is more suitable from the viewpoint of versatility and operability.
- the content of montmorillonite in the barrier layer 12 is set in the range of 2 weight percent (wt%) to 22 wt%. Although details will be described later, when the content is less than 2 wt%, it is difficult to ensure sufficient barrier properties. On the other hand, when the content exceeds 22 wt%, the influence of montmorillonite on the physical properties of the barrier layer 12 becomes too large, and as a result, it becomes impossible to sufficiently follow the shape change of the support due to elongation, and cracks and the like are likely to occur.
- the support 11 may peel from the barrier layer 12 and be released from the adhesive layer 20.
- PVA is a polymer compound having a hydroxyl group obtained by saponification (hydrolysis treatment with alkali) of polyvinyl acetate, but in the support film 10 of this embodiment, the adhesion between the barrier layer 12 and the support 11. In order to prevent the above-described situation from occurring, the degree of saponification of PVA is set in the range of 70% to 95.5%.
- the degree of saponification exceeds 95.5%, the adhesion to the support 11 is lowered, and when the degree of saponification is smaller than 70%, the barrier layer 12 is easily soluble in water. As a result, the water resistance of the support film 10 and the tape material 1 is lowered. Therefore, when it is used for industrial use, packaging, protection, etc., it is assumed that it will be affected by rainwater outdoors, for medical use such as sanitary materials such as paper diapers, plasters and transdermal administration, and cosmetics. When used for home use, home use, etc., it is assumed to be affected by sweat or when water is used in daily life.
- the adhesive layer 20 is configured by mixing a plasticizer with an adhesive base material, and is formed on the barrier layer 12 by application or the like on the surface opposite to the support 11.
- the pressure-sensitive adhesive used for the pressure-sensitive adhesive layer 20 is not particularly limited. Natural rubber, synthetic isoprene rubber, recycled rubber, styrene-butadiene rubber (SBR), styrene-isoprene-styrene block copolymer (SIS), styrene-butadiene-styrene Rubber polymers such as block copolymers (SBS), polyisobutylene, SEBS, and SEPS, acrylic polymers such as (meth) acrylate copolymers having (meth) acrylate esters as main monomers, silicone Various materials such as rubber, silicone resin, silicon polymer such as dimethylsiloxane and diphenylsiloxane, polyvinyl ether, polyvinyl ester, EVA, and polyester can be used.
- plasticizers including petroleum oils (paraffinic process oil, naphthenic process oil, aromatic process oil, etc.), dibasic acid esters (dibutyl phthalate, dioctyl phthalate, etc.), liquid rubber (polybutene, liquid Isoprene, liquid polyisobutylene, etc.), vegetable oils (castor oil, tall oil, etc.), liquid fatty acid esters (isopropyl myristate, hexyl laurate, diethyl sebacate, diisopropyl sebacate, etc.), triacetin, sorbitan fatty acid esters, Various plasticizers such as sugar fatty acid esters, fatty acid glycerin esters, and surfactants can be used.
- plasticizers such as sugar fatty acid esters, fatty acid glycerin esters, and surfactants can be used.
- tackifiers may be blended in order to increase the tackiness.
- rosin, modified rosin, rosin resin such as rosin ester, terpene resin, aromatic modified terpene resin, hydrogenated terpene resin, terpene resin such as terpene phenol resin, aliphatic petroleum resin, aromatic petroleum resin
- examples thereof include petroleum resins such as copolymerized petroleum resins, hydrogenated petroleum resins, and DCPD petroleum resins, styrene resins, substituted styrene resins, xylene resins, phenol resins, and chroman indene resins.
- an antioxidant, a filler, a crosslinking agent, an ultraviolet absorber, a colorant, a flame retardant, a conductive agent, a foaming agent and the like may be added depending on the use of the tape material.
- the plasticizer exceeds the barrier layer 12 by appropriately setting the content of montmorillonite in the barrier layer 12 in consideration of the type of plasticizer within the above-mentioned range.
- the shift to the support 11 side is preferably suppressed.
- the polyurethane constituting the support 11 easily adsorbs the plasticizer, and in that case, the deterioration of the support 11 due to the plasticizer moving to the support 11 becomes a problem.
- the barrier property of the barrier layer 12 is suitably maintained not only when the support 11 is not stretched but also when stretched to a stretch rate of 20% (indicating that the length after stretching increases by 20%).
- the above-mentioned problem due to the plasticizer can be suitably prevented not only during storage before use but also during use when being attached to an object.
- the specific content of montmorillonite can be easily set by a preliminary test using a plasticizer to be used. The relationship between the barrier properties for some plasticizers and the montmorillonite content will be described later.
- the peeling member 30 protects the pressure-sensitive adhesive surface of the pressure-sensitive adhesive layer 20 until sticking to an object, and various known release papers can be suitably used.
- the peeling member 30 is not necessarily provided.
- MN montmorillonite
- the prepared eight types of samples 100 are cut into a size of 25 millimeters (mm) ⁇ 120 mm, and have a thickness of 50 ⁇ m on both sides in the longitudinal direction in order to facilitate operation with a tensile tester.
- a sheet 101 made of polyethylene terephthalate (PET) was attached with a double-sided tape to produce an evaluation piece 100A.
- the dimension in the longitudinal direction of the evaluation piece 100A of the sheet 101 was 10 mm, and the dimension in the longitudinal direction of the portion not covered with the sheet 101 in each evaluation piece 100A was set to 100 mm.
- Both ends of the evaluation piece 100A reinforced with the sheet 101 are fixed to the chuck portion of the tensile tester, and as shown in FIG. 3, the portion that is not covered with the sheet 101 at an extension speed of 300 mm (mm / min) per minute.
- the elongation rate was set in five stages: 0%, 5%, 10%, 20%, and 30%.
- each evaluation piece 100A is removed from the tensile tester, and as shown in FIG. 4, each evaluation piece 100A is placed on the black acrylic plate 110 with the PET sheet 111 coated with silicone on the surface. The layer was fixed with the top side. At this time, it operated so that air might not enter between evaluation piece 100A and PET sheet 111 as much as possible.
- the MN content is 1 wt%, 10 wt%, 18 wt%, 22 wt%, 25 wt%, 30 wt%, and 37 wt%.
- the evaluation was performed using evaluation pieces 100A of 2 wt%, 10 wt%, and 22 wt%.
- FIG. 6 to FIG. 9 are optical micrographs of the support film after performing an elongation operation with an elongation rate of 20% on the evaluation pieces having an MN content of 10 wt%, 18 wt%, 25 wt%, and 30 wt%, respectively. .
- MN 10 wt% and 18 wt% no significant change in appearance is observed, but at MN 25 wt% and 30 wt%, wrinkles due to swelling are observed.
- an adhesive layer (adhesive layer coating amount: 100 g / m 2 ) containing a base material and a plasticizer was formed on the barrier layer.
- a base material two types, a rubber base material and an acrylic base material, were used, and a total of five types of adhesive layer materials were prepared by combining a plurality of types of plasticizers.
- the adhesive layer was formed in each sample using each adhesive layer material, and the adhesive layer was covered with the peeling member, and the sample of the tape material was produced.
- the combination of the base material and the plasticizer in each adhesive layer material is as follows (% of the plasticizer indicates the content). Rubber base (IPM 20%, MGIS 10%, SMO 10%, SMO 20%), acrylic base (IPM 20%, TA 10%, MGIS 10%, SMO 10%).
- the MN content in the barrier layer 12 is set in the range of 2 wt% or more and 22 wt% or less, the plasticizer is applied to the support in both non-extension and 20% extension. It was shown that the barrier property to the extent that migration is sufficiently suppressed can be secured.
- the adhesive tape 122 is cut out to 30 mm ⁇ 100 mm, and a PET sheet 121 coated with silicone is attached to one end in the longitudinal direction, and then attached to the barrier layer of the sample 120 as shown in FIG. b.
- the adhesive tape 122 and the PET sheet 121 are cut out to a size of 25 mm ⁇ 90 mm as shown in FIG. c.
- two 25 mm ⁇ 90 mm double-sided tapes 131 are attached to the acrylic plate 130 side by side, and the support side of the cut adhesive tape 122 and the double-sided tape 131 are covered with the two double-sided tapes 131. Glue.
- a part of the double-sided tape 131 that protrudes in the width direction of the adhesive tape 122 is cut off and removed from the acrylic plate 130.
- a 50 mm ⁇ 100 mm reinforcing tape 132 is prepared, and as shown in FIG. 14, the reinforcing tape 132 is attached to the end of the adhesive tape 122 not bonded to the sample 120 so that the PET sheet 121 is sandwiched in the thickness direction.
- the evaluation piece 140 is produced.
- the evaluation piece 140 is immersed in hot water of 40 ° C. and left for 30 minutes. At this time, the entire adhesive tape 122 is placed in hot water. f.
- the evaluation piece 140 is pulled up from the hot water and lightly wiped off the moisture before being set in a tensile tester.
- the acrylic plate 130 is fixed to one chuck, and the end of the reinforcing tape 132 on the side not bonded to the PET sheet is fixed to the other chuck.
- the evaluation piece is pulled at a tensile speed of 300 mm / min, and the measurement is finished when the adhesive tape 122 is completely peeled off from the support.
- the average value of the tension value N of the tensile tester in the range of the tensile amount from 10 mm to 30 mm was defined as the water-resistant adhesion.
- Three evaluation pieces were prepared for each sample, and the water-resistant adhesion was evaluated.
- the barrier property in the barrier layer is suitably maintained even when the elongation is extended to 20%. Can do.
- a tape material that suitably maintains the barrier properties both when not stretched and when stretched to a stretch rate of 20% and prevents the plasticizer of the adhesive layer from being transferred to the support is configured. can do.
- the degree of saponification of PVA in the barrier layer 70% or more and 95.5% or less, the adhesion between the support and the barrier layer is improved, and the support film and the tape material that can withstand more various use conditions Can be configured.
- the technical scope of the present invention is not limited to the above-described embodiment, and combinations of the constituent elements of each embodiment are possible without departing from the spirit of the present invention. It is possible to change, to make various changes to each component, or to delete.
- the support film of the present invention it is not essential to set the content of the layered inorganic compound in the above range. Therefore, when the support film or the tape material is used without being elongated, the content of the layered inorganic compound in the barrier layer may be set outside the above range.
- the present invention can be widely used for tape materials for various uses such as medical use and industrial use.
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Abstract
Description
本願は、2010年7月29日に、日本に出願された特願2010-171209号に基づき優先権を主張し、その内容をここに援用する。
さらに、代表的具体例として次のものが挙げられる。包装用としては、包装材料を係止するための粘着テープがあり、伸長可能なことにより、包装された状態で輸送等により力が加わった場合であっても、破断したり、包装材料を傷つけることがなく、また、伸長された状態でバリア性を良好に保持することができることで、輸送等の際に、外部を汚染することがない。医療用としては、人体や動物等に貼付した場合に、人体等の動作に伴う伸長に追従することができ、意図しない剥離が生じにくい。また、伸長された状態でバリア性を良好に保持することができることで、可塑剤等、有効成分が外部に漏れ出ることがなく、医療用として優れた性能を得ることができる。
支持体11は、柔軟性を有し、寸法にして10パーセント(%)以上増加する所定の最大伸長率まで伸長可能である。具体的な最大伸長率の値は、テープ材1の用途等に基づいて適宜設定されてよい。本実施形態において、支持体11を形成するポリウレタンは、特に限定されず、従来ポリウレタンフィルムに用いられているものが利用でき、用途によって適宜選択できる。たとえばポリエーテル系ポリウレタン、ポリエステル系ポリウレタン、ポリカーボネート系ポリウレタン等が挙げられる。耐水性が必要な用途では、ポリエーテル系ポリウレタンまたはポリカーボネート系ポリウレタンが好ましい。
また、ウレタン結合を形成するイソシアネートの種類や、黄変タイプ、無黄変タイプ等についても特定のものには限定されず、用途、使用に際して保管する期間や方法、使用する可塑剤の種類等に応じて適宜選択できる。
支持体11の厚さは、10マイクロメートル(μm)~200μmであり、15μm以上100μm以下とされるのが好ましい。厚さが10μm未満では薄すぎて取扱いが困難であり、200μmより厚いと柔軟性が低下して本来の柔軟性が充分発揮されない。
離型フィルムの材質は特に限定するものではないが、一般にシリコーン処理したPETフィルムや、剥離性の良いポリオレフィンフィルム、紙とポリエチレンの積層体など、伸び縮みせず後で剥離可能なものを使うことが出来る。
モンモリロナイトは、鉱物学的には2八面体型含水層状珪酸塩鉱物で、理想的には次の化学式で表現される。
(Al2-yMgy)Si4O10(OH)2 . (M+,M1/2 2+)y . nH2O ただし、y=0.2~0.6、M:交換性陽イオンNa、K、Ca、Mg、Hなど、n :層間水の量。
モンモリロナイトの結晶構造は、2枚の四面体シートと1枚の八面体シートからなる3層を基本とした層状構造を形成する。四面体シートの陽イオンはSiのみで、八面体シートの陽イオンのAlが一部Mgに置換されている。このため、単位結晶層は負の電荷を帯びており、その負電荷に見合うように結晶層間にNa+、K+、Ca2+、Mg2+、H+などの陽イオンが入り込み補償されている。本発明では、これら陽イオンの種類は特に限定されることなく使用できる。
粘着層20に用いられる粘着剤に特に制限はなく、天然ゴム、合成イソプレンゴム、再生ゴム、スチレン・ブタジエンゴム(SBR)、スチレン-イソプレン-スチレンブロック共重合体(SIS)、スチレン-ブタジエン-スチレンブロック共重合体(SBS)、ポリイソブチレン、SEBS、SEPS等のゴム系高分子、(メタ)アクリル酸エステル類を主モノマーとする(メタ)アクリル酸エステル共重合体等のアクリル系高分子、シリコーンゴム、シリコーン樹脂、ジメチルシロキサン、ジフェニルシロキサン等のシリコン系高分子、ポリビニルエーテル系、ポリビニルエステル系、EVA系、ポリエステル系等の各種材料を用いることができる。
また、テープ材の用途に応じて、抗酸化剤、充填剤、架橋剤、紫外線吸収剤、着色剤、難燃剤、導電剤、発泡剤等が加えられてもよい。
一般に、支持体11を構成するポリウレタンは、可塑剤を吸着等しやすく、その場合、可塑剤が支持体11側に移行することによる支持体11の変質等が問題となるが、テープ材1では、支持体11の非伸長時はもちろん、伸長率20%(伸長後の長さが20%増加することを指す)まで伸長されたときにおいてもバリア層12のバリア性が好適に保持される、その結果、使用前の保存時だけでなく、対象物に貼り付けられる使用時においても可塑剤による上記問題を好適に防止することができる。なお、具体的なモンモリロナイト含有率は、使用する可塑剤を用いた予備試験等により、容易に設定することができる。一部の可塑剤に対するバリア性とモンモリロナイト含有率との関係については、後述する。
(1-1 サンプルの作成)
支持体として、厚さ20μmのポリエーテル系ポリウレタン製のものを用いた。支持体の一方の面に、MNとPVA(ケン化度80%)とを混合したバリアコート剤を、1.0g/m2均一に塗布することによりバリア層を形成した。これを基本構成として、バリア層におけるMNの含有率を、1wt%、2wt%、10wt%、18wt%、22wt%、25wt%、30wt%、および37wt%の8段階設定し、支持フィルムのサンプルを8種類作製した。
作製した8種類のサンプル100を、図2に示すように25ミリメートル(mm)×120mmの大きさに切り出し、引張試験機での操作をしやすくするため、長手方向両端部の両面に厚さ50μmのポリエチレンテレフタレート(PET)製のシート101を両面テープで貼り付け、評価片100Aを作製した。シート101の評価片100Aの長手方向における寸法は10mmとし、各評価片100Aにおいて、シート101に覆われない部分の長手方向の寸法は100mmに設定した。
IPM、TA、およびSMOについては、MN含有率1wt%、10wt%、18wt%、22wt%、25wt%、30wt%、および37wt%の評価片100Aを用いて検討し、MGISについては、MN含有率2wt%、10wt%、および22wt%の評価片100Aを用いて検討した。
結果を表1に示す。IPM、TA、およびMGISについては、MN含有率が22wt%以下の場合、すべての伸長率において支持体の膨潤を認めず、可塑剤の移行が抑制されていた。一方、SMOについては、MN含有率、伸長率にかかわらず支持体に膨潤が認められ、本発明のフィルム材に用いる可塑剤としては好ましくない場合があると考えられた。実験に用いた各可塑剤の溶解度パラメータ(SP値、フェダーズ法による)は、IPMで8.5、TAで10.2、MGISで10.76、SMOで11.76であり、SP値が低い可塑剤のほうが好ましい傾向があることが推測された。
図6から図9は、それぞれMN含有率10wt%、18wt%、25wt%、および30wt%の評価片に対して、伸長率20%の伸長操作を行ったあとの支持フィルムの光学顕微鏡写真である。MN10wt%および18wt%では、外観に大きな変化は見られないが、MN25wt%および30wt%では膨潤によるシワが見られる。
(2-1 サンプルの作成)
支持体として、実験1と同様の材料を用い、支持体の一方の面に、MNとPVA(ケン化度80%)とを混合したバリアコート剤を1.0g/m2均一に塗布することによりバリア層を形成した。バリア層におけるMNの含有率を、1wt%、2wt%、4wt%、10wt%、18wt%、22wt%、25wt%、30wt%、および37wt%の9段階設定し、支持フィルムのサンプルを9種類作製した。
a.非伸長時における安定性試験
10平方センチメートルに切り出したテープ材サンプルを、伸長操作を行わずに60℃で1週間保存した。
b.伸長時における安定性試験
幅30mm、長さ50mmに切り出したテープ材サンプルを、剥離部材を除去してから長さ方向に伸長率20%の伸長操作を1回行った後、60℃で3日間保存した。
いずれの場合も、保存後の各テープ材サンプルにおいて、実験1と同様に、支持体におけるシワ発生の有無によりバリア性を評価した。実験2における評価は、膨潤によるシワを認めない:◎、わずかに膨潤によるシワを認めるが、品質に問題ない程度である:○、膨潤によるシワが認められ、使用に耐えない:×の3段階とした。
結果を表2に示す。MN含有率が2wt%、10wt%、および18wt%の場合、非伸長時および20%伸長時のいずれにおいても支持体にシワを認めずバリア性が良好に保たれていることが示唆された。
また、実験1で好ましくない場合があると考えられたSMOについても、バリア層におけるMNの含有率や粘着層における可塑剤の含有率等を適切に設定することにより、支持体への可塑剤の移行を充分抑制できることが確認された。
(3-1 サンプルの作製)
支持体は実験1と同一とし、バリア層に使用するPVAのケン化度を、80%、90%、95.5%、及び98.5%(完全ケン化)の4段階設定した。各ケン化度のPVAとMNとを混合してバリアコート剤を調製し、実験1と同様の量および方法で塗布してバリア層を形成し、支持フィルムのサンプル120を作製した。バリア層におけるMNの含有率は10wt%とした。
a.粘着テープ122を30mm×100mmに切り出し、長手方向の一方の端部にシリコーンを塗布したPETシート121を貼り付けてから、図11に示すように、サンプル120のバリア層に貼り付ける。
b.粘着テープ122及びPETシート121を、サンプル120ごと図12に示すような25mm×90mmの大きさに切り出す。
c.図13に示すように、アクリル板130に25mm×90mmの両面テープ131を2本並べて貼り付け、切り出した粘着テープ122の支持体側と両面テープ131とを、2本の両面テープ131を覆うように接着する。粘着テープ122の幅方向にはみ出した両面テープ131の一部は切り落としてアクリル板130から除去する。
d.50mm×100mmの補強テープ132を準備し、図14に示すように、サンプル120に接着されていない粘着テープ122の端部に、PETシート121を厚さ方向に挟むように補強テープ132を貼り付けて評価片140を作製する。
e.評価片140を40℃の温湯に浸けて30分間放置する。このとき、粘着テープ122の全体を湯の中に位置させる。
f.30分経過したら評価片140を温湯から引き上げ、水分を軽く拭き取ってから引張試験機にセットする。このとき、図15に示すように、一方のチャックにアクリル板130を固定し、他方のチャックに補強テープ132のPETシートに接着されていない側の端部を固定する。
g.評価片を300mm/minの引張速度で牽引し、粘着テープ122が支持体から完全に剥がれた時点で測定を終了する。引張量10mmから30mmの範囲における引張試験機の張力値Nの平均値を耐水密着力とした。サンプルごとに3つの評価片を作製して耐水密着力を評価した。
結果を表3に示す。PVAのケン化度が95.5%以下の評価片では、張力値Nの平均値が10ニュートン(N)以上であり、良好な耐水密着力を示したが、ケン化度98.5%の評価片では、著しく耐水密着性が低下した。したがって、支持体とバリア層との良好な密着性を得るためには、水溶性高分子化合物のケン化度は95.5%以下が好ましいと考えられる。
例えば、本発明の支持フィルムにおいては、層状無機化合物の含有率を上述の範囲に設定することは必須ではない。したがって、支持フィルムやテープ材がほとんど伸長されずに使用される等の場合は、バリア層における層状無機化合物の含有率が上述の範囲外に設定されてもよい。
10 テープ材用支持フィルム
11 支持体
12 バリア層
20 粘着層
Claims (3)
- テープ材に用いられるテープ材用支持フィルムであって、
ポリウレタンからなるフィルム状の支持体と、
ポリビニルアルコールと層状無機化合物とを含み、前記支持体の一方の面に形成されたバリア層と、
を備え、
前記ポリビニルアルコールのケン化度は、70パーセント以上95.5パーセント以下に設定されていることを特徴とするテープ材用支持フィルム。 - 前記層状無機化合物がモンモリロナイトであることを特徴とする請求項1に記載のテープ材用支持フィルム。
- 請求項1または2に記載のテープ材用支持フィルムと、
前記バリア層上であって前記支持体とは反対側に形成された粘着層と、
を備えるテープ材。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012526365A JP5770187B2 (ja) | 2010-07-29 | 2011-06-15 | テープ材用支持フィルムおよびテープ材 |
EP11812178.9A EP2589492B1 (en) | 2010-07-29 | 2011-06-15 | Supporting film for tape material and tape material |
ES11812178.9T ES2564953T3 (es) | 2010-07-29 | 2011-06-15 | Película de soporte para material de cinta y material de cinta |
KR1020137002542A KR102028210B1 (ko) | 2010-07-29 | 2011-06-15 | 테이프재용 지지 필름 및 테이프재 |
CN201180036478.4A CN103097130B (zh) | 2010-07-29 | 2011-06-15 | 带材用支承膜以及带材 |
US13/812,797 US20130183522A1 (en) | 2010-07-29 | 2011-06-15 | Support film for tape and tape |
Applications Claiming Priority (2)
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JP2010171209 | 2010-07-29 | ||
JP2010-171209 | 2010-07-29 |
Publications (1)
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WO2012014585A1 true WO2012014585A1 (ja) | 2012-02-02 |
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PCT/JP2011/063656 WO2012014585A1 (ja) | 2010-07-29 | 2011-06-15 | テープ材用支持フィルムおよびテープ材 |
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US (1) | US20130183522A1 (ja) |
EP (1) | EP2589492B1 (ja) |
JP (1) | JP5770187B2 (ja) |
KR (1) | KR102028210B1 (ja) |
CN (1) | CN103097130B (ja) |
ES (1) | ES2564953T3 (ja) |
TW (1) | TWI523761B (ja) |
WO (1) | WO2012014585A1 (ja) |
Cited By (5)
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WO2013111773A1 (ja) * | 2012-01-27 | 2013-08-01 | 久光製薬株式会社 | テープ材用支持フィルムおよびテープ材 |
US9340709B2 (en) | 2010-07-29 | 2016-05-17 | Hisamitsu Pharmaceutical Co., Inc. | Support film for tape and tape |
KR20190034194A (ko) | 2016-08-04 | 2019-04-01 | 도판 인사츠 가부시키가이샤 | 테이프재용 지지 필름 및 테이프재 |
KR20190034208A (ko) | 2016-08-04 | 2019-04-01 | 도판 인사츠 가부시키가이샤 | 테이프재용 지지 필름, 테이프재, 및 테이프재용 지지 필름의 제조 방법 |
US20190254880A1 (en) * | 2016-09-15 | 2019-08-22 | Nitto Denko Corporation | Laminate patchable living body |
Families Citing this family (3)
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CN103758329B (zh) * | 2013-12-19 | 2016-07-13 | 江苏贝尔装饰材料有限公司 | 具有防水胶的pvc自粘地板 |
KR102383649B1 (ko) | 2014-08-19 | 2022-04-08 | 삼성전자주식회사 | Cmos 이미지 센서 |
TWI724240B (zh) * | 2016-09-20 | 2021-04-11 | 日商尤尼吉可股份有限公司 | 離型膜及其製造方法 |
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- 2011-06-15 JP JP2012526365A patent/JP5770187B2/ja active Active
- 2011-06-15 KR KR1020137002542A patent/KR102028210B1/ko active IP Right Grant
- 2011-06-15 US US13/812,797 patent/US20130183522A1/en not_active Abandoned
- 2011-06-15 WO PCT/JP2011/063656 patent/WO2012014585A1/ja active Application Filing
- 2011-06-15 EP EP11812178.9A patent/EP2589492B1/en active Active
- 2011-06-15 ES ES11812178.9T patent/ES2564953T3/es active Active
- 2011-06-15 CN CN201180036478.4A patent/CN103097130B/zh active Active
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JPH09262249A (ja) * | 1996-03-29 | 1997-10-07 | Japan Atom Energy Res Inst | ハイドロゲル創傷被覆材 |
JP2003136645A (ja) | 2001-10-30 | 2003-05-14 | Toppan Printing Co Ltd | 印刷適性を有するガスバリアコートフィルム及びその製造方法 |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9340709B2 (en) | 2010-07-29 | 2016-05-17 | Hisamitsu Pharmaceutical Co., Inc. | Support film for tape and tape |
WO2013111773A1 (ja) * | 2012-01-27 | 2013-08-01 | 久光製薬株式会社 | テープ材用支持フィルムおよびテープ材 |
US9163164B2 (en) | 2012-01-27 | 2015-10-20 | Hisamitsu Pharmaceutical Co., Inc. | Support film for tape and tape |
KR20190034194A (ko) | 2016-08-04 | 2019-04-01 | 도판 인사츠 가부시키가이샤 | 테이프재용 지지 필름 및 테이프재 |
KR20190034208A (ko) | 2016-08-04 | 2019-04-01 | 도판 인사츠 가부시키가이샤 | 테이프재용 지지 필름, 테이프재, 및 테이프재용 지지 필름의 제조 방법 |
US11655395B2 (en) | 2016-08-04 | 2023-05-23 | Toppan Printing Co.. Ltd. | Support film for tape material, and tape material |
US20190254880A1 (en) * | 2016-09-15 | 2019-08-22 | Nitto Denko Corporation | Laminate patchable living body |
US11576819B2 (en) * | 2016-09-15 | 2023-02-14 | Nitto Denko Corporation | Laminate patchable to living body |
Also Published As
Publication number | Publication date |
---|---|
TW201210822A (en) | 2012-03-16 |
ES2564953T3 (es) | 2016-03-30 |
US20130183522A1 (en) | 2013-07-18 |
EP2589492A4 (en) | 2013-05-15 |
EP2589492A1 (en) | 2013-05-08 |
KR102028210B1 (ko) | 2019-10-02 |
CN103097130A (zh) | 2013-05-08 |
EP2589492B1 (en) | 2015-12-16 |
JP5770187B2 (ja) | 2015-08-26 |
CN103097130B (zh) | 2016-08-31 |
KR20130140612A (ko) | 2013-12-24 |
JPWO2012014585A1 (ja) | 2013-09-12 |
TWI523761B (zh) | 2016-03-01 |
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