WO2018066334A1 - 伸縮性フィルムおよびそれを含む物品 - Google Patents
伸縮性フィルムおよびそれを含む物品 Download PDFInfo
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- WO2018066334A1 WO2018066334A1 PCT/JP2017/033212 JP2017033212W WO2018066334A1 WO 2018066334 A1 WO2018066334 A1 WO 2018066334A1 JP 2017033212 W JP2017033212 W JP 2017033212W WO 2018066334 A1 WO2018066334 A1 WO 2018066334A1
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- layer
- stretchable film
- film according
- gas concentration
- deodorant
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
-
- 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
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
-
- 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
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
-
- 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
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/01—Deodorant compositions
-
- 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
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
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- 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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/02—Physical, chemical or physicochemical properties
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
Definitions
- the present invention relates to an elastic film and an article including the same.
- Patent Document 1 Various elastic films are used for articles such as sanitary goods such as diapers and masks.
- Such a stretchable film is required not only to have excellent stretchability but also to have excellent breathability in view of uses such as diapers and masks.
- a body fluid absorbing article using a back sheet having air permeability and a deodorizing effect has been reported as a prior art related to sanitary products imparted with a deodorizing performance (Patent Document 2).
- Patent Document 2 A body fluid absorbing article is only intended to achieve both air permeability and a deodorizing effect, and has a problem that stretchability cannot be exhibited.
- both the air permeability and the deodorizing effect are at a level not suitable for actual use.
- Patent Document 3 As another prior art related to sanitary products imparted with deodorant performance, a breathable porous sheet capable of suppressing the passage of odor while ensuring sufficient breathability has been reported (Patent Document 3).
- this breathable porous sheet is intended only for achieving both breathability and suppression of odor passage, and has a problem that stretchability cannot be exhibited.
- both the air permeability and the deodorizing effect are at a level not suitable for actual use.
- the fragrance necessary for hygiene products is also adsorbed, and once adsorbed odors are released due to changes in temperature and humidity. There is a problem of going back.
- the present invention has been made to solve the above-described conventional problems, and its object is to provide a stretchable film having excellent stretchability, excellent breathability, and excellent deodorizing properties. is there. Moreover, it is providing the articles
- the stretchable film of the present invention is A film having elasticity, Contains deodorant.
- the deodorant is a chemisorption deodorant.
- the chemisorption deodorant includes silicon dioxide and zinc oxide.
- the total content of silicon dioxide and zinc oxide in the chemisorption deodorant is 50 wt% to 100 wt%.
- the content ratio of silicon dioxide and zinc oxide in the chemisorption deodorant is 5:95 to 95: 5 as silicon dioxide: zinc oxide (weight ratio).
- the content ratio of silicon dioxide and zinc oxide in the chemisorption deodorant is 60:40 to 80:20 as silicon dioxide: zinc oxide (weight ratio).
- the stretchable film of the present invention includes an olefin resin and a filler.
- the olefin resin includes an olefin elastomer.
- the olefin elastomer includes an ⁇ -olefin elastomer.
- the ⁇ -olefin elastomer is a propylene elastomer.
- the filler is at least one selected from inorganic particles and organic particles.
- the filler is inorganic particles.
- the inorganic particles are at least selected from talc, titanium oxide, calcium oxide, magnesium oxide, zinc oxide, titanium oxide, calcium carbonate, silica, clay, mica, barium sulfate, whisker, and magnesium hydroxide.
- talc titanium oxide, calcium oxide, magnesium oxide, zinc oxide, titanium oxide, calcium carbonate, silica, clay, mica, barium sulfate, whisker, and magnesium hydroxide.
- the inorganic particles are calcium carbonate.
- the stretchable film of the present invention is obtained by stretching an unstretched film.
- the stretchable film of the present invention is composed of a laminate of two or more layers, and the deodorant is included in at least one layer constituting the laminate.
- the deodorizer is included in at least one of the outermost layers.
- the stretchable film of the present invention comprises a three-layer laminate.
- the deodorant when the layer structure of the laminate is expressed as A layer / B layer / C layer, the deodorant is A layer only, only B layer, only C layer, A layer and B layer. Only both, only both B and C layers, only both A and C layers, and all of A, B and C layers.
- the deodorant is included in all of the A layer, the B layer, and the C layer.
- the stretchable film of the present invention comprises a laminate of three layers, and when the layer configuration is represented as A layer / B layer / C layer, the A layer is a surface layer.
- the thickness of the C layer is 2 ⁇ m to 40 ⁇ m.
- the stretchable film of the present invention is composed of a laminate of three layers, and when the layer configuration is represented as A layer / B layer / C layer, B layer which is an intermediate layer The thickness is 10 ⁇ m to 70 ⁇ m.
- the deodorant is a chemisorption deodorant.
- the chemisorption deodorant includes silicon dioxide and zinc oxide.
- the total content of silicon dioxide and zinc oxide in the chemisorption deodorant is 50 wt% to 100 wt%.
- the content ratio of silicon dioxide and zinc oxide in the chemisorption deodorant is 5:95 to 95: 5 as silicon dioxide: zinc oxide (weight ratio).
- the content ratio of silicon dioxide and zinc oxide in the chemisorption deodorant is 60:40 to 80:20 as silicon dioxide: zinc oxide (weight ratio).
- the stretchable film of the present invention has ammonia and hydrogen sulfide deodorization efficiency of 10% or more after 3 hours from the start of the deodorization test as measured by the detector tube method.
- the deodorization efficiency is calculated as in the following (i) or (ii).
- (I) In a constant temperature and humidity chamber at 20 ° C. and 65% RH, a stretchable film to be measured cut into a size of 140 mm ⁇ 200 mm is put in a 3 L tedlar bag.
- the odorous gas has a predetermined initial gas concentration P (initial gas concentration is 100 ppm for ammonia and initial gas concentration is 4 ppm for hydrogen sulfide).
- P initial gas concentration
- initial gas concentration is 4 ppm for hydrogen sulfide.
- the gas concentration is monitored over time with a gas detector tube (manufactured by Gastec Co., Ltd.), and the gas concentration Q after 3 hours is measured.
- odorless air that has been passed through activated carbon is sealed in the smart bag PA, and then the odorous gas has a predetermined initial gas concentration P (initial gas concentration is 100 ppm for ammonia and initial gas concentration is 4 ppm for hydrogen sulfide). It inject
- pours in this smart bag PA so that it may become. Thereafter, the gas concentration is monitored over time with a gas detector tube (manufactured by Gastec Co., Ltd.), and the gas concentration Q after 3 hours is measured. [(PQ) / P] ⁇ 100 X (%) is calculated, and this X (%) is defined as a gas concentration reduction rate.
- the stretchable film of the present invention has an air permeability of less than 99999 sec / 100 cc as measured by a Oken air permeability meter.
- the stretchable film of the present invention has a stretch direction in which the air permeability measured by a Wangken type air permeability meter in a stretched state of 100% is less than 60000 sec / 100 cc.
- the chuck distance in the hysteresis test, when the tension between the chuck 20 mm and the chuck distance 30 mm is pulled to the chuck distance 60 mm at a tension speed of 50 mm / min and held for 1 minute, the chuck distance is removed. It has a tensile direction in which the residual strain is 10 mm or less.
- the stretchable film of the present invention is used for sanitary goods.
- the article of the present invention includes the stretchable film of the present invention.
- a stretchable film having excellent stretchability, excellent breathability, and excellent deodorizing properties can be provided.
- goods containing such an elastic film can be provided.
- the stretchable film of the present invention is a film having stretchability.
- the stretchable film of the present invention has excellent breathability by having stretchability.
- One embodiment of the stretch film of the present invention includes a deodorant.
- the stretchable film of the present invention can exhibit excellent stretchability, excellent breathability, and excellent deodorant properties.
- the deodorant examples include a chemical adsorption deodorant that exhibits a deodorizing effect by chemical adsorption, a physical adsorption deodorant that exhibits a deodorizing effect by physical adsorption (activated carbon, bamboo charcoal, zeolite, etc.), biological action, etc.
- Biological deodorant that produces a deodorizing effect by sterilization bactericide, antibacterial agent, etc.
- Masking deodorant that develops a deodorizing effect by masking action (perfume, etc.)
- Photocatalyst that develops a deodorizing effect by photocatalytic action Deodorizer (titanium oxide etc.) etc. are mentioned.
- a chemisorption deodorant is preferably selected as the deodorant in the present invention. If a physical adsorption deodorant is selected, there is a risk that the fragrance necessary for hygiene products will be adsorbed, and there is a possibility that the odor once adsorbed will be released due to a change in temperature and humidity and return (odor return) . When a biological deodorant is selected, it may be difficult to sufficiently deodorize the odor that has volatilized in the air. When a masking deodorant is selected, the odor to be deodorized and the masking odor may be mixed to produce an unpleasant odor, and the sustainability of the deodorizing effect may be poor.
- chemisorption deodorants have a fast deodorization rate and are durable, and the fragrance required for hygiene products is not easily deodorized, and the odor reversion seen with physical adsorption deodorants is unlikely to occur.
- the odor that has volatilized in the water can be sufficiently deodorized, no unpleasant odor is generated due to mixing of odors due to the masking action, and the deodorizing effect can be exhibited even if there is no light.
- the chemisorption deodorant examples include various metal oxides. Among these, it has been found that the effects of the present invention can be more manifested particularly when a combination of silicon dioxide and zinc oxide is employed. That is, in the present invention, the deodorizer is preferably a chemisorption deodorant, and more preferably, the chemisorption deodorant contains silicon dioxide and zinc oxide. In the present invention, when a chemisorption deodorant containing silicon dioxide and zinc oxide is used as a deodorant, it can be seen that a deodorizing effect can be expressed against both basic odor and acidic odor, typically.
- a deodorizing effect can be exhibited against both an amine-based odor such as ammonia and a sulfur-based odor such as hydrogen sulfide.
- Amine-based odors such as ammonia and sulfur-based odors such as hydrogen sulfide are known as the four major malodors (ammonia, triethylamine, hydrogen sulfide, methyl mercaptan), and it is extremely excellent that they can be deodorized. This is one index showing the deodorizing effect.
- the total content of silicon dioxide and zinc oxide in the chemisorption deodorant is preferably 50% to 100% by weight. More preferably 70% to 100% by weight, still more preferably 90% to 100% by weight, particularly preferably 95% to 100% by weight, and most preferably substantially 100% by weight. is there. If the total content of silicon dioxide and zinc oxide in the chemisorption deodorant is within the above range, the stretchable film of the present invention is very excellent while maintaining excellent stretchability and excellent breathability. Deodorant can be expressed.
- the content ratio of silicon dioxide and zinc oxide in the chemisorption deodorant is preferably as silicon dioxide: zinc oxide (weight ratio). 5:95 to 95: 5, more preferably 15:85 to 90:10, still more preferably 30:70 to 90:10, particularly preferably 50:50 to 85:15, most preferably Preferably, it is 60:40 to 80:20. If the content ratio of silicon dioxide and zinc oxide in the chemisorption deodorant is within the above range, the stretchable film of the present invention has a very excellent extinction while maintaining excellent stretchability and excellent breathability. Odor can be expressed.
- the content of the deodorant contained in the stretchable film of the present invention is based on the total weight (100% by weight) of the stretchable film. Preferably, it is 0.005% to 2.0% by weight, more preferably 0.01% to 1.6% by weight, and still more preferably 0.01% to 1.3% by weight. More preferably 0.02 to 1.0% by weight.
- the stretchable film of the present invention is excellent if the content of the deodorant contained in the stretchable film of the present invention is within the above range. Higher deodorizing properties can be achieved while maintaining excellent stretchability and excellent breathability.
- the stretchable film of the present invention consists of only one layer, if the content of the deodorant contained in the stretchable film of the present invention is too low outside the above range, the stretchable film of the present invention There is a possibility that excellent deodorant properties cannot be expressed.
- the stretchable film of the present invention consists of only one layer, if the content of the deodorant contained in the stretchable film of the present invention is too high outside the above range, the stretchable film of the present invention There is a risk that excellent stretchability and excellent breathability cannot be maintained.
- the deodorant may be contained in at least one of the layers constituting the laminate.
- the deodorant is preferably contained in at least one of the outermost layers.
- the deodorant may be contained only in the A layer or contained only in the B layer. It may be included in both the A layer and the B layer.
- the deodorant may be contained only in the A layer or only in the B layer. It may be included, may be included only in the C layer, may be included only in both the A layer and the B layer, or may be included only in both the B layer and the C layer. Alternatively, it may be included only in both the A layer and the C layer, or may be included in all of the A layer, the B layer, and the C layer.
- the stretchable film of the present invention is composed of a laminate of 4 or more layers, it may be contained in the same pattern as described above.
- the content of the deodorant contained in each layer of “at least one of the outermost layers” containing the deodorant Is preferably 0.001% to 20% by weight, more preferably 0.01% to 15% by weight, and still more preferably 0% to 100% by weight based on the total weight (100% by weight) of the layer.
- the stretchable film of the present invention When the stretchable film of the present invention is composed of a laminate of two or more layers, the content of the deodorant contained in each layer of “at least one of the outermost layers” containing the deodorant is If it exists in the said range, the stretchable film of this invention can express the more outstanding deodorizing property, maintaining the outstanding stretchability and the outstanding air permeability.
- the stretchable film of the present invention is composed of a laminate of two or more layers, the content of the deodorant contained in each layer of “at least one of the outermost layers” containing the deodorant is If it is out of the above range and too low, the stretchable film of the present invention may not exhibit excellent deodorizing properties.
- the stretchable film of the present invention is composed of a laminate of two or more layers, the content of the deodorant contained in each layer of “at least one of the outermost layers” containing the deodorant is If it is out of the above range and too high, the stretchable film of the present invention may not be able to maintain excellent stretchability and excellent breathability.
- the deodorization efficiency of ammonia and hydrogen sulfide after 3 hours from the start of the deodorization test measured by the detector tube method is 10% or more.
- the deodorizing efficiency is preferably 10% or more, more preferably 20% or more, still more preferably 40% or more, and particularly preferably 60% or more.
- the upper limit of the deodorizing efficiency is theoretically 100%. If the deodorizing efficiency is within the above range, the stretchable film of the present invention can exhibit a deodorizing effect on both amine-based odors such as ammonia and sulfur-based odors such as hydrogen sulfide.
- the stretchable film of the present invention can deodorize the bad odor known as four major malodors (ammonia, triethylamine, hydrogen sulfide, methyl mercaptan), and therefore exhibits a very excellent deodorizing effect.
- the bad odor known as four major malodors (ammonia, triethylamine, hydrogen sulfide, methyl mercaptan), and therefore exhibits a very excellent deodorizing effect.
- the deodorization efficiency is calculated as (i) or (ii) below.
- a stretchable film to be measured cut into a size of 100 mm ⁇ 100 mm is put into a 5 L-capacity smart bag PA (manufactured by GL Sciences Inc.).
- 2 L of odorless air that has been passed through activated carbon is sealed in the smart bag PA, and then the odorous gas has a predetermined initial gas concentration P (initial gas concentration is 100 ppm for ammonia and initial gas concentration is 4 ppm for hydrogen sulfide). It inject
- a gas detector tube manufactured by Gastec Co., Ltd.
- the stretchable film of the present invention preferably has an air permeability of less than 99999 sec / 100 cc, more preferably less than 80000 sec / 100 cc, and even more preferably less than 70000 sec / 100 cc, as measured by the Oken air permeability meter. More preferably, it is less than 60000 sec / 100 cc, particularly preferably less than 50000 sec / 100 cc, and most preferably less than 40000 sec / 100 cc. If the air permeability measured by the Oken type air permeability meter of the stretchable film of the present invention is within the above range, the stretchable film of the present invention can have better air permeability.
- the stretchable film of the present invention preferably has a stretching direction in which the air permeability measured by the Oken air permeability meter in a stretched state of 100% is less than 60000 sec / 100 cc.
- This air permeability is more preferably less than 50000 sec / 100 cc, further preferably less than 40000 sec / 100 cc, further preferably less than 30000 sec / 100 cc, particularly preferably less than 10000 sec / 100 cc, and most preferably 5000 sec. / 100 cc.
- the stretchable film of the present invention has an extension direction in which the air permeability measured by the Oken air permeability meter in a state where the stretchable film is 100% stretched is in the above range, the stretchable film of the present invention is Excellent breathability in the stretched state.
- the term “having the stretching direction” means that the stretchable film of the present invention may have at least one stretching direction in which the air permeability is within the above range.
- an extension direction typically, when the stretchable film of the present invention is an unstretched film, all directions of the film are preferably mentioned, and the stretchable film of the present invention is uniaxially stretched.
- a direction perpendicular to the direction of stretching CD direction when stretched in the longitudinal (MD) direction
- MD longitudinal
- the stretchable film of the present invention is a biaxially stretched film
- the air permeability is within the above range depending on various conditions such as simultaneous stretching or sequential stretching, or the difference in biaxial stretching ratio.
- the extending direction is determined.
- the stretchable film of the present invention is preferably pulled in a hysteresis test from a width of 20 mm and an inter-chuck distance of 30 mm to an inter-chuck distance of 60 mm at a tensile speed of 50 mm / min.
- the residual strain is 10 mm or less.
- This residual strain is more preferably 9 mm to 1 mm, further preferably 8 mm to 1 mm, further preferably 7 mm to 1 mm, particularly preferably 6 mm to 2 mm, and most preferably 5 mm to 3 mm. If the stretchable film of the present invention has a tensile direction in which the residual strain falls within the above range, the stretchable film of the present invention can have more excellent stretchability.
- the term “having a tensile direction” means that the stretchable film of the present invention only needs to have at least one tensile direction in which the residual strain falls within the above range.
- a tensile direction typically, when the stretchable film of the present invention is an unstretched film, all directions of the film are preferably mentioned, and the stretchable film of the present invention is uniaxially stretched.
- a direction perpendicular to the direction of stretching CD direction when stretched in the longitudinal (MD) direction
- MD longitudinal
- the stretchable film of the present invention is a biaxially stretched film, the residual strain is within the above range depending on various conditions such as simultaneous stretching or sequential stretching or a difference in biaxial stretching ratio. The pulling direction will be determined.
- the thickness of the stretchable film of the present invention is preferably 30 ⁇ m to 300 ⁇ m, more preferably 40 ⁇ m to 200 ⁇ m, still more preferably 50 ⁇ m to 150 ⁇ m, particularly preferably 60 ⁇ m to 140 ⁇ m, most preferably 70 ⁇ m to 120 ⁇ m. If the thickness of the stretchable film of the present invention is within the above range, the stretchable film of the present invention can exhibit more excellent stretchability, more excellent breathability, and more excellent deodorizing properties.
- the stretchable film of the present invention preferably contains an olefin resin and a filler.
- the stretchable film of the present invention may be composed of only one layer or may be composed of a laminate of two or more layers.
- FIG. 1 is a schematic plan view of an example of a stretchable film according to one embodiment of the present invention.
- the stretchable film 100 includes an olefin resin 10, a filler 20, and a deodorant 50.
- FIG. 2 is a schematic plan view of an example of a stretchable film according to another embodiment of the present invention.
- the stretchable film 100 includes an olefin resin 10, a filler 20, and a deodorant 50, and further includes a gap 30.
- an embodiment as shown in FIG. 2 can be obtained by stretching. That is, when the stretchable film of the present invention is an embodiment as shown in FIG. 1, the stretchable film of the present invention can generate appropriate voids on the surface by stretching. Due to this moderate gap, the stretchable film of the present invention can exhibit sufficient air permeability.
- the stretchable film of the present invention can exhibit excellent air permeability without stretching. Moreover, when the stretchable film of the present invention is an embodiment as shown in FIG. 1, it can exhibit better air permeability by stretching.
- the stretchable film of the present invention When the stretchable film of the present invention is an embodiment as shown in FIG. 2, it can exhibit excellent air permeability without stretching. Moreover, when the stretchable film of the present invention is an embodiment as shown in FIG. 2, it can exhibit better air permeability by stretching.
- the stretchable film of the present invention employs, for example, an embodiment as shown in FIG. 1 or an embodiment as shown in FIG. Can do.
- the stretchable film of the present invention is an embodiment as shown in FIG. 1
- the form that can exhibit excellent breathability without stretching is a site where stretching is unlikely to occur, and It can be preferably used at a site where sex is required.
- the stretchable film of the present invention is an embodiment as shown in FIG. 1, and a form capable of exhibiting excellent breathability by stretching is a portion where stretching occurs and aeration occurs. It can be preferably used at a site where sex is required.
- the stretchable film of the present invention is an embodiment as shown in FIG. 2, even if the stretch is difficult to occur and the breathability is required, the stretch occurs. Even a portion where air permeability is required can be preferably used.
- FIG. 3 is a schematic cross-sectional view of an example of a stretchable film according to another embodiment of the present invention.
- the stretchable film 100 is composed of a three-layered laminate (A layer 101 / B layer 102 / C layer 103).
- the A layer 101 is composed of an olefin resin 10, a filler 20, and a deodorant.
- the B layer 102 includes the olefin resin 10 and the filler 20 and does not include the deodorizer 50
- the C layer 103 includes the olefin resin 10 and the filler 20 and does not include the deodorizer 50.
- FIG. 4 is a schematic cross-sectional view of an example of a stretchable film according to another embodiment of the present invention.
- the stretchable film 100 is composed of a three-layered laminate (A layer 101 / B layer 102 / C layer 103), and the A layer 101 contains the olefin resin 10 and the filler 20 and is erased.
- the odorant 50 is not included, the B layer 102 includes the olefin resin 10, the filler 20, and the deodorant 50, and the C layer 103 includes the olefin resin 10 and the filler 20 and does not include the deodorant 50.
- FIG. 5 is a schematic cross-sectional view of an example of a stretchable film according to another embodiment of the present invention.
- the stretchable film 100 is composed of a three-layered laminate (A layer 101 / B layer 102 / C layer 103).
- the A layer 101 is composed of an olefin resin 10, a filler 20, and a deodorant.
- the B layer 102 includes the olefin resin 10, the filler 20, and the deodorizer 50
- the C layer 103 includes the olefin resin 10 and the filler 20 and does not include the deodorizer 50.
- FIG. 6 is a schematic cross-sectional view of an example of a stretchable film according to another embodiment of the present invention.
- the stretchable film 100 is composed of a three-layered laminate (A layer 101 / B layer 102 / C layer 103).
- the A layer 101 is composed of an olefin resin 10, a filler 20, and a deodorant.
- the B layer 102 includes the olefin resin 10 and the filler 20 and does not include the deodorizer 50
- the C layer 103 includes the olefin resin 10, the filler 20, and the deodorizer 50.
- FIG. 7 is a schematic cross-sectional view of an example of a stretchable film according to another embodiment of the present invention.
- the stretchable film 100 is composed of a three-layered laminate (A layer 101 / B layer 102 / C layer 103).
- the A layer 101 is composed of an olefin resin 10, a filler 20, and a deodorant.
- the B layer 102 includes the olefin resin 10, the filler 20, and the deodorizer 50
- the C layer 103 includes the olefin resin 10, the filler 20, and the deodorizer 50.
- the stretchable film of the present invention preferably contains an olefin resin.
- the olefin resin may be only one kind or a blend of two or more kinds.
- the stretchable film of the present invention is composed of a laminate of two or more layers, preferably at least one layer of each layer contains an olefinic resin, and the olefinic resin may be only one type. It may be a blend of two or more.
- the stretchable film of the present invention is composed of a laminate of two or more layers, more preferably, all the layers contain an olefin resin, and the olefin resin may be only one kind, Two or more kinds of blends may be used.
- olefin resin means “olefin elastomer” having elastomeric properties and “non-elastomeric olefin resin” having no elastomer properties. That is, in the present specification, when the term “olefin resin” is used, unless specifically limited, it is only “olefin elastomer” or “non-elastomeric olefin resin”. In the case of a blend of “olefin elastomer” and “non-elastomeric olefin resin”, it means that there are three possibilities:
- the olefin resin preferably includes an olefin elastomer.
- the stretchable film of the present invention can exhibit more excellent stretchability.
- the stretch film of this invention can express the more outstanding air permeability by combining with a filler because an olefin resin contains an olefin type elastomer.
- the olefin resin contains the olefin elastomer, the odor generated from the stretchable film of the present invention can be suppressed.
- olefin-based elastomer Only one type of olefin-based elastomer may be used, or a blend of two or more types may be used.
- the thermal stability can be improved, and for example, thermal degradation when producing the stretchable film of the present invention can be suppressed.
- the stretchable film of the present invention contains an olefin-based elastomer
- the storage stability is improved, and fluctuations in physical property values during storage of the stretchable film of the present invention can be suppressed.
- the stretchable film of the present invention contains an olefin elastomer
- the process for producing the elastomer layer can be simplified and the processing cost can be suppressed. This is because when an olefin-based elastomer is employed, it is possible to perform extrusion molding by reducing the types of resins used in the production of the elastomer layer, and it may not be necessary to prepare a masterbatch.
- the content of the olefinic elastomer in the olefinic resin is preferably 50% by weight to 100% by weight from the viewpoint that the effect of the present invention is more manifested. More preferably 70% to 100% by weight, still more preferably 90% to 100% by weight, particularly preferably 95% to 100% by weight, and most preferably substantially 100% by weight. %.
- the stretchable film of the present invention is oil resistant by adjusting the content ratio of the olefinic elastomer in the olefinic resin within the above range. Get better.
- the stretchable film of the present invention when the stretchable film of the present invention consists of only one layer, the stretchable film of the present invention is more excellent by adjusting the content ratio of the olefinic elastomer in the olefinic resin within the above range. High elasticity can be expressed.
- the stretchable film of the present invention is composed of only one layer, the stretchable film of the present invention has a filler by adjusting the content of the olefinic elastomer in the olefinic resin within the above range. By combining with, more excellent breathability can be expressed.
- produces from the elastic film of this invention can be suppressed more by adjusting the content rate of the olefin elastomer in an olefin resin in the said range.
- the stretchable film of the present invention is composed of a laminate of L layers (where L is 2 or more), a layer that does not contain an olefin resin (other layers) within a range that does not impair the effects of the present invention. It may be contained in the (L-1) layer or less.
- the stretchable film of the present invention is composed of a laminate of two or more layers
- the number of layers is preferably 2 to 10 layers, more preferably 2 to 5 layers, and even more preferably 2 layers.
- the number of layers is from 4 to 4, particularly preferably 3 layers. If the stretchable film of the present invention is composed of a three-layer laminate, the effects of the present invention can be further manifested, and the stretchable film of the present invention can be excellent in handleability and excellent in blocking resistance. obtain.
- the stretchable film of the present invention is composed of a laminate of two or more layers, all the layers may be different types, or at least two layers may be the same type.
- the thickness of each layer is preferably 2 ⁇ m to 100 ⁇ m, more preferably 2 ⁇ m to 70 ⁇ m.
- the stretchable film of the present invention is composed of a three-layer laminate
- the layer structure is represented as A layer / B layer / C layer
- the thicknesses of the A layer and C layer which are surface layers are preferably Is 2 ⁇ m to 40 ⁇ m, more preferably 2 ⁇ m to 30 ⁇ m, even more preferably 2 ⁇ m to 20 ⁇ m, particularly preferably 2 ⁇ m to 10 ⁇ m, and most preferably 2 ⁇ m to 8 ⁇ m.
- the thickness of the B layer as the intermediate layer is preferably 10 ⁇ m to The thickness is 70 ⁇ m, more preferably 15 ⁇ m to 70 ⁇ m, still more preferably 20 ⁇ m to 70 ⁇ m, particularly preferably 30 ⁇ m to 70 ⁇ m, and most preferably 40 ⁇ m to 70 ⁇ m.
- the stretchable film of the present invention is composed of a laminate of three layers
- the layer structure is represented as A layer / B layer / C layer
- the B layer as an intermediate layer may be a plurality of layers.
- the thickness of each layer is preferably within the above range.
- the stretchable film of the present invention is composed of a three-layer laminate
- the layer configuration is represented as A layer / B layer / C layer
- the ratio of the thicknesses of the A layer, B layer, and C layer is as follows:
- a layer: B layer: C layer 1 to 30:40 to 98: 1 to 30, more preferably
- a layer: B layer: C layer 3 to 25:50 to 94: 3 to 25
- a layer: B layer: C layer 5 to 20:60 to 90: 5 to 20, particularly preferably
- a layer: B layer: C layer 7 to 15:70 to 86 : 7-15.
- the stretchable film of the present invention is composed of a three-layer laminate
- all of the three layers may include an olefin-based elastomer, or only two of the three layers are included.
- the form containing an olefinic elastomer may be sufficient, and the form in which only one layer among these three layers contains an olefinic elastomer may be sufficient.
- the stretchable film of the present invention has such a configuration, the effects of the present invention can be further exhibited, and the stretchable film of the present invention can be excellent in handling properties and can be excellent in blocking resistance.
- the intermediate layer (the B layer) contains an olefin elastomer and does not contain a non-elastomeric olefin resin. It is a form.
- the stretchable film of the present invention has such a form, the effects of the present invention can be further exhibited, and the stretchable film of the present invention can be excellent in handling properties and can be excellent in blocking resistance.
- the stretchable film of the present invention is composed of a three-layer laminate, preferably, (1) [layer containing non-elastomeric olefin resin as resin component] / [layer containing olefin elastomer as resin component] / [layer containing non-elastomeric olefin resin as resin component] (2) [Layer containing blend of olefin elastomer and non-elastomeric olefin resin as resin component] / [Layer containing olefin elastomer as resin component] / [Olefin elastomer and non-elastomeric olefin resin as resin component] A layer comprising a blend of It is.
- the stretchable film of the present invention has such a configuration, the effects of the present invention can be further exhibited, and the stretchable film of the present invention can be excellent in handling properties and can be excellent in blocking resistance.
- the non-elastomeric olefin resin may be only one kind, or may be a blend or copolymer of two or more kinds.
- the content of the olefinic elastomer in the olefinic resin contained in the layer is preferably 20% by weight to 80% by weight from the viewpoint that the effect of the present invention is more manifested. More preferably 25% to 75% by weight, still more preferably 30% to 70% by weight, particularly preferably 35% to 65% by weight, and most preferably 40% to 60% by weight. % By weight.
- the stretch film of the present invention can be excellent in oil resistance by adjusting the content ratio of the olefin elastomer in the olefin resin contained in the layer containing the olefin elastomer as the resin component.
- the stretchable film of the present invention exhibits excellent stretchability.
- the elastic film of the present invention is combined with a filler by adjusting the content ratio of the olefin elastomer in the olefin resin contained in the layer containing the olefin elastomer as the resin component, Excellent breathability can be expressed.
- the odor generated from the stretchable film of the present invention can be further suppressed by adjusting the content ratio of the olefin elastomer in the olefin resin contained in the layer containing the olefin elastomer as the resin component. .
- the content ratio of the non-elastomeric olefin resin in the olefin resin contained in the layer is preferably 20 in that the effect of the present invention is more manifested.
- % By weight to 80% by weight, more preferably 25% by weight to 75% by weight, further preferably 30% by weight to 70% by weight, particularly preferably 35% by weight to 65% by weight, and most preferably Is 40% to 60% by weight.
- the stretchable film of the present invention can be excellent in handleability and excellent in blocking resistance.
- olefin elastomers examples include olefin block copolymers, olefin random copolymers, ethylene copolymers, propylene copolymers, ethylene olefin block copolymers, propylene olefin block copolymers, ethylene olefin random copolymers, propylene olefin random copolymers, ethylene propylene random copolymers, ethylene (1 -Butene) random copolymer, ethylene (1-pentene) olefin block copolymer, ethylene (1-hexene) random copolymer, ethylene (1-heptene) olefin block copolymer, ethylene (1-octene) olefin block copolymer, ethylene (1-nonene) ) Olefin block copolymer, ethylene (1-decene) ole Block copolymer, propylene ethylene olefin block cop
- the olefin-based elastomer has density, preferably 0.890g / cm 3 ⁇ 0.830g / cm 3, more preferably 0.888g / cm 3 ⁇ 0.835g / cm 3, more preferably 0.886 g / cm 3 to 0.835 g / cm 3 , particularly preferably 0.885 g / cm 3 to 0.840 g / cm 3 , and most preferably 0.885 g / cm 3 to 0.845 g / cm 3. 3 .
- the elastic film of the present invention can be more excellent in oil resistance by containing an olefin-based elastomer whose density falls within the above range in the layer constituting the elastic film of the present invention.
- the elastic film of this invention can express the outstanding elasticity by containing the olefin type elastomer in which a density is settled in the said range in the layer which comprises the elastic film of this invention.
- the stretchable film of the present invention has a superior air permeability when combined with a filler. It can be expressed.
- produces from the elastic film of this invention can be suppressed more by containing the olefin type elastomer in which a density is settled in the said range in the layer which comprises the elastic film of this invention.
- the MFR at 2.16 kgf at 230 ° C. is preferably 1.0 g / 10 min to 25.0 g / 10 min, more preferably 2.0 g / 10 min to 23.0 g / 10. Min, more preferably 2.0 g / 10 min to 21.0 g / 10 min, particularly preferably 2.0 g / 10 min to 20.0 g / 10 min, most preferably 2.0 g / 10 min. Min to 19.0 g / 10 min.
- the elastic film of the present invention can be more excellent in oil resistance by containing an olefin-based elastomer having an MFR within the above range in the layer constituting the elastic film of the present invention.
- the elastic film of this invention can express the further outstanding elasticity by making the layer which comprises the elastic film of this invention contain the olefin type elastomer in which MFR is settled in the said range.
- the elastic film of this invention combines the filler with the filler by containing the olefin type elastomer in which MFR is contained in the said range in the layer which comprises the elastic film of this invention, and has more excellent air permeability. It can be expressed.
- produces from the elastic film of this invention can be suppressed more by making the layer which comprises the elastic film of this invention contain the olefin type elastomer which MFR fits in the said range.
- the olefin elastomer is preferably an ⁇ -olefin elastomer.
- ⁇ -olefin elastomers more preferably at least one selected from ethylene elastomers, propylene elastomers, and 1-butene elastomers.
- the stretchable film of the present invention can be more excellent in oil resistance.
- the stretchable film of the present invention can exhibit more excellent stretchability.
- the stretchable film of the present invention can exhibit better air permeability when combined with a filler. Further, by employing such an ⁇ -olefin elastomer as the olefin elastomer, the odor generated from the stretchable film of the present invention can be further suppressed.
- ethylene elastomers and propylene elastomers are particularly preferable.
- the stretch film of the present invention can be more excellent in oil resistance.
- the elastic film of this invention can express the outstanding elasticity by employ
- the stretchable film of the present invention can exhibit better air permeability when combined with a filler. Moreover, the odor which generate
- propylene elastomers are particularly preferable.
- the thermal stability is improved, and, for example, thermal deterioration during production of the stretchable film of the present invention can be suppressed.
- the stretchable film of the present invention contains a propylene-based elastomer
- the storage stability is improved, and fluctuations in physical property values during storage of the stretchable film of the present invention can be suppressed.
- the production process of the stretchable film of the present invention can be simplified and the processing cost can be suppressed by including the propylene-based elastomer in the stretchable film of the present invention. This is because, when a propylene-based elastomer is employed, it is possible to perform extrusion molding when producing the stretchable film of the present invention, and it may not be necessary to produce a masterbatch.
- propylene elastomer examples include propylene copolymer, propylene olefin block copolymer, propylene olefin random copolymer, propylene ethylene olefin block copolymer, and amorphous polypropylene.
- the propylene elastomer has an MFR at 230 ° C. of 2.16 kgf of preferably 0.1 g / 10 min to 18 g / 10 min, more preferably 0.5 g / 10 min to 15 g / 10 min. More preferably, it is 1.0 g / 10 min to 10 g / 10 min, particularly preferably 1.5 g / 10 min to 7 g / 10 min, and most preferably 2 g / 10 min to 5 g / 10 min.
- the stretchable film of the present invention can exhibit more excellent stretchability.
- the stretchable film of this invention can express the more outstanding air permeability by combining with a filler.
- the ⁇ -olefin elastomer can be obtained as a commercial product.
- commercially available products include some of “Tuffmer” (registered trademark) series (for example, Tuffmer PN-2070, Toughmer PN-3560, etc.) manufactured by Mitsui Chemicals, Inc., “ Some of the “Vistamaxx” (registered trademark) series (for example, Vistamax 6202, Vistamax 7010, etc.) may be mentioned.
- the ⁇ -olefin elastomer is preferably produced using a metallocene catalyst.
- a metallocene catalyst By employing an ⁇ -olefin-based elastomer produced using a metallocene catalyst, the stretchable film of the present invention can be more excellent in oil resistance.
- an ⁇ -olefin elastomer produced using a metallocene catalyst the stretchable film of the present invention can exhibit better stretchability.
- the stretchable film of the present invention can exhibit better air permeability when combined with a filler.
- an ⁇ -olefin elastomer produced using a metallocene catalyst the odor generated from the stretchable film of the present invention can be further suppressed.
- non-elastomeric olefin resins include ⁇ -olefin homopolymers, copolymers of two or more ⁇ -olefins, block polypropylene, random polypropylene, one or more ⁇ -olefins and other vinyls. Examples thereof include a monomer copolymer. Examples of the copolymerization form in the copolymer include a block form and a random form.
- ⁇ -olefins examples include ⁇ -olefins having 2 to 12 carbon atoms. Examples of such ⁇ -olefins include ethylene, propylene, 1-butene and 4-methyl-1-pentene.
- Examples of the ⁇ -olefin homopolymer include polyethylene (PE), homopolypropylene (PP), poly (1-butene), poly (4-methyl-1-pentene), and the like.
- PE polyethylene
- LDPE low density polyethylene
- LLDPE linear low density polyethylene
- MDPE medium density polyethylene
- HDPE high density polyethylene
- the structure of homopolypropylene (PP) may be any of isotactic, atactic and syndiotactic.
- the non-elastomeric olefin-based resin preferably includes at least one selected from polyethylene (PE) and homopolypropylene (PP), more preferably high-density polyethylene (HDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), and at least one selected from homopolypropylene (PP).
- the non-elastomeric olefin resin contains at least one selected from high-density polyethylene (HDPE), low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), and homopolypropylene (PP).
- HDPE high-density polyethylene
- LDPE low-density polyethylene
- LLDPE linear low-density polyethylene
- PP homopolypropylene
- the content ratio of at least one selected from high density polyethylene (HDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), and homopolypropylene (PP) in the non-elastomeric olefin resin is from the viewpoint that the effects of the invention can be further manifested, it is preferably 50% to 100% by weight, more preferably 70% to 100% by weight, more preferably 80% to 100% by weight, It is preferably 90% to 100% by weight, particularly preferably 95% to 100% by weight, and most preferably substantially 100% by weight.
- Examples of the copolymer of two or more kinds of ⁇ -olefins include, for example, an ethylene / propylene copolymer, an ethylene / 1-butene copolymer, an ethylene / propylene / 1-butene copolymer, an ethylene / carbon number of 5 to 12 ⁇ -olefin copolymers, propylene / ⁇ -olefin copolymers having 5 to 12 carbon atoms, and the like.
- Examples of the copolymer of one or more ⁇ -olefins and other vinyl monomers include, for example, ethylene / vinyl acetate copolymer, ethylene / acrylic acid alkyl ester copolymer, ethylene / methacrylic acid alkyl ester copolymer And an ethylene-nonconjugated diene copolymer.
- a commercially available non-elastomeric olefin resin may be used.
- the stretchable film of the present invention preferably contains a filler.
- the filler is preferably at least one selected from inorganic particles and organic particles. One type of filler may be used, or two or more types may be used. When the stretchable film of the present invention contains a filler, the stretchable film of the present invention can exhibit better air permeability.
- the filler is preferably contained in at least one of the layers constituting the laminate, more preferably, Included in all layers that make up the stack.
- examples of the inorganic particles include talc, titanium oxide, calcium oxide, magnesium oxide, zinc oxide, titanium oxide, calcium carbonate, silica, clay, mica, barium sulfate, whisker, and magnesium hydroxide.
- organic particles examples include acrylic beads, styrene beads, and silicone resin particles.
- the average particle diameter of the filler any appropriate average particle diameter can be adopted as long as the effects of the present invention are not impaired.
- the average particle diameter of such a filler is preferably 0.5 ⁇ m or more as a lower limit, more preferably 0.6 ⁇ m or more, still more preferably 0.7 ⁇ m or more, and the upper limit is preferably 50 ⁇ m. It is below, More preferably, it is 30 micrometers or less, More preferably, it is 10 micrometers or less, Most preferably, it is 5 micrometers or less.
- Arbitrary appropriate content can be employ
- the content of such a filler is preferably 50 parts by weight or more, more preferably 70 parts by weight or more, and still more preferably as a lower limit with respect to 100 parts by weight of the olefin resin in the stretchable film. Is 100 parts by weight or more, and the upper limit is preferably 400 parts by weight or less, more preferably 350 parts by weight or less, and still more preferably 300 parts by weight or less.
- the content of the filler contained in each layer constituting the laminate is 100 parts by weight of the olefin resin in the layer.
- the lower limit is preferably 50 parts by weight or more, more preferably 70 parts by weight or more, still more preferably 100 parts by weight or more
- the upper limit is preferably 400 parts by weight or less, more preferably. 350 parts by weight or less, more preferably 300 parts by weight or less.
- the filler may be coated with a release agent to prevent aggregation.
- release agents include fatty acid amide release agents, silicone release agents, fluorine release agents, and long chain alkyl release agents.
- a fatty acid amide release agent is preferable, and a saturated fatty acid bisamide is more preferable.
- Arbitrary appropriate usage-amount can be employ
- the stretchable film of the present invention may contain any appropriate other component as long as the effects of the present invention are not impaired. These may be only one type or two or more types. Examples of such other components include UV absorbers, heat stabilizers, mold release agents, lubricants, colorants (dyes, etc.), antioxidants, anti-smudge agents, antiblocking agents, foaming agents, etc. Polymers, tackifiers, plasticizers, deterioration inhibitors, antistatic agents, light stabilizers, and the like. These may be only one type or two or more types.
- the ultraviolet absorber examples include benzotriazole compounds, benzophenone compounds, benzoate compounds, and the like. Any appropriate content can be adopted as the content of the ultraviolet absorber as long as it does not bleed out during molding.
- heat stabilizer examples include hindered amine compounds, phosphorus compounds, and cyanoacrylate compounds. Any appropriate content can be adopted as the content of the heat-resistant stabilizer as long as it does not bleed out during molding.
- Examples of the release agent include fatty acid amide release agents, silicone release agents, fluorine release agents, and long-chain alkyl release agents. From the viewpoint that an excellent release layer can be formed due to a balance between releasability and contamination due to bleed-out, a fatty acid amide release agent is preferable, and a saturated fatty acid bisamide is more preferable. Arbitrary appropriate content can be employ
- the stretchable film of the present invention is preferably obtained by stretching an unstretched film. Such stretching treatment of a stretched film is sometimes referred to as pre-stretching.
- the stretchable film of the present invention can exhibit more excellent stretchability by stretching the unstretched film.
- the stretchable film of this invention can express the more outstanding air permeability by combining with a filler by extending
- Pre-stretching refers to pre-stretching that means the stretchable film of the present invention is stretched in advance in contrast to being stretched again (post-stretching) in the final use (for example, when manufacturing a diaper and when using a diaper). It is.
- the pre-stretching is preferably performed after the elastic film of the present invention is produced and sufficiently solidified.
- the pre-stretching may be performed for the entire length or width in at least one direction, or may be performed partially.
- the pre-stretching can be performed in any direction.
- Pre-stretching is preferably performed on its original length or width in at least one direction.
- the extension degree of the pre-extension is preferably 1.5 times or more and less than 2.5 times (typically 2.0 times), more preferably 2.5 times or more and less than 3.5 times (typically 3.times. 0 times), more preferably 3.5 times or more and less than 4.5 times (typically 4.0 times), particularly preferably 4.5 times or more and less than 5.5 times (typically 5.0 times) ).
- the 2.0-fold pre-stretching means stretching to 2 L (also referred to as stretching) when the original length is L.
- stretching By pre-stretching at such a degree of stretching, the stretchable film of the present invention can exhibit more excellent stretchability.
- the stretch film of this invention can express the more outstanding air permeability by combining with a filler by pre-stretching by such a stretch degree.
- Pre-extension is preferably performed at a temperature below the melting point of the olefin resin.
- the stretchable film of the present invention can exhibit more excellent stretchability.
- the stretch film of this invention can express the more outstanding air permeability by combining with a filler by extending
- the stretchable film of the present invention is preferably pre-stretched in this way, so that the olefinic resin is plastically deformed or stretched beyond the brittle fracture point of the olefinic resin, and thus has a superior stretchability. It can be expressed.
- any appropriate method can be adopted as long as the effects of the present invention are not impaired.
- an unstretched film is produced by any appropriate method and then stretched.
- the stretching treatment is preferably performed after an unstretched film is produced and sufficiently solidified. The details of the stretching process are as described above.
- a typical example of a method for producing an unstretched film is a method of producing by molding using a T-die molding machine.
- a roll body of a stretchable film can be produced by extruding a stretchable film material of the present invention from a Tdie using a T-die molding machine and then winding it into a roll.
- an inflation method or the like can also be employed.
- the stretchable film of the present invention can be used for any appropriate article that can effectively use the effects of the present invention. That is, the article of the present invention includes the stretchable film of the present invention.
- a typical example of such an article is a sanitary product.
- the stretchable film of the present invention was used as a stretchable member (waistband or gathers) in diapers (particularly the ear (ear) part or the opening around the waist or legs). Diapers), supporters and masks.
- ⁇ Elasticity evaluation method> A hysteresis test as shown in FIG. 8 is performed on a test piece having a width of 20 mm from a distance between chucks of 30 mm to a distance between chucks of 60 mm at a pulling speed of 50 mm / min, held for 1 minute, and then the tension between the chucks is eliminated. The residual strain when the tension between the chucks was removed was measured. Regarding the measurement of residual strain, when the produced film is a uniaxially stretched film, the tensile direction is the direction orthogonal to the direction of the stretching (CD direction when stretched in the longitudinal (MD) direction). did. A case where the residual strain was less than 10 mm was evaluated as ⁇ . A case where the residual strain was 10 mm or more was evaluated as x.
- ⁇ Breathability evaluation method> The air permeability was measured using an air permeability measured using a Oken type air permeability meter (sec / 100cc) (manufactured by Asahi Seiko Co., Ltd., trade name: EG01-7-7MR). For those having an air permeability of less than 9999 sec / 100 cc, it was judged as ⁇ (sufficient air permeability). Air permeability of 9999 sec / 100 cc or more and less than 99999 sec / 100 cc was determined to be ⁇ (medium air permeability). Those having an air permeability of 99999 sec / 100 cc or more were judged as x (no air permeability).
- film as it is means that air permeability was measured with the produced film as it was.
- “twice in the width direction” means that the air permeability was measured in a state where the produced film was stretched twice in the width direction.
- the unstretched film (3) having a thickness of 60 ⁇ m was manufactured by co-extrusion from the T die in three layers (surface layer / intermediate layer / surface layer). Next, the unstretched film (3) was stretched in the width direction at a magnification of 3.8 times to obtain a stretchable film (3). The results are shown in Table 1.
- the unstretched film (4) having a thickness of 60 ⁇ m was manufactured by co-extrusion from the T die in three layers (surface layer / intermediate layer / surface layer). Next, the unstretched film (4) was stretched in the width direction at a magnification of 3.8 times to obtain a stretchable film (4). The results are shown in Table 1.
- the stretchable film of the present invention can be used for any appropriate article that can effectively use the effects of the present invention. That is, the article of the present invention includes the stretchable film of the present invention.
- a typical example of such an article is a sanitary product.
- the stretchable laminate of the present invention is used as a stretchable member (waistband or gathers) in diapers (particularly the ear (ear) portion, waist or leg opening). Diapers), supporters and masks.
- Olefin resin 10 Filler 20 Air gap 30 Deodorant 50 Elastic film 100 A layer 101 B layer 102 C layer 103
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Abstract
Description
伸縮性を有するフィルムであって、
消臭剤を含む。
ただし、消臭効率は、下記の(i)または(ii)のようにして算出される。
(i)20℃、65%RHの恒温恒湿室中において、140mm×200mmの大きさに切り出した測定対象の伸縮性フィルムを容積3Lのテドラーバッグに入れる。次に、活性炭を通過させた無臭空気3Lを該テドラーバッグ内に封入後、臭気ガスを所定の初期ガス濃度P(アンモニアについては初期ガス濃度が100ppm、硫化水素については初期ガス濃度が4ppm)となるように、該テドラーバッグ内に注入する。その後、経時的にガス濃度をガス検知管(株式会社ガステック製)でモニターし、3時間後におけるガス濃度Qを測定する。[(P-Q)/P]×100=X(%)を算出し、このX(%)をガス濃度低減率とする。他方、測定対象の伸縮性フィルムをテドラーバッグに入れずに同様の測定を行い、3時間後におけるガス濃度Q0を測定し、[(P-Q0)/P]×100=Y(%)を算出し、このY(%)をブランクガス濃度低減率とする。得られたガス濃度低減率X(%)とブランクガス濃度低減率Y(%)から、(X-Y)(%)を算出し、消臭効率とする。
(ii)25℃、20%RHの恒温恒湿室中において、100mm×100mmの大きさに切り出した測定対象の伸縮性フィルムを容積5LのスマートバッグPA(ジーエルサイエンス株式会社製)に入れる。次に、活性炭を通過させた無臭空気2Lを該スマートバッグPA内に封入後、臭気ガスを所定の初期ガス濃度P(アンモニアについては初期ガス濃度が100ppm、硫化水素については初期ガス濃度が4ppm)となるように、該スマートバッグPA内に注入する。その後、経時的にガス濃度をガス検知管(株式会社ガステック製)でモニターし、3時間後におけるガス濃度Qを測定する。[(P-Q)/P]×100=X(%)を算出し、このX(%)をガス濃度低減率とする。他方、測定対象の伸縮性フィルムをスマートバッグPAに入れずに同様の測定を行い、3時間後におけるガス濃度Q0を測定し、[(P-Q0)/P]×100=Y(%)を算出し、このY(%)をブランクガス濃度低減率とする。得られたガス濃度低減率X(%)とブランクガス濃度低減率Y(%)から、(X-Y)(%)を算出し、消臭効率とする。
本発明の伸縮性フィルムは、伸縮性を有するフィルムである。本発明の伸縮性フィルムは、伸縮性を有することにより、優れた通気性を有する。
(ii)25℃、20%RHの恒温恒湿室中において、100mm×100mmの大きさに切り出した測定対象の伸縮性フィルムを容積5LのスマートバッグPA(ジーエルサイエンス株式会社製)に入れる。次に、活性炭を通過させた無臭空気2Lを該スマートバッグPA内に封入後、臭気ガスを所定の初期ガス濃度P(アンモニアについては初期ガス濃度が100ppm、硫化水素については初期ガス濃度が4ppm)となるように、該スマートバッグPA内に注入する。その後、経時的にガス濃度をガス検知管(株式会社ガステック製)でモニターし、3時間後におけるガス濃度Qを測定する。[(P-Q)/P]×100=X(%)を算出し、このX(%)をガス濃度低減率とする。他方、測定対象の伸縮性フィルムをスマートバッグPAに入れずに同様の測定を行い、3時間後におけるガス濃度Q0を測定し、[(P-Q0)/P]×100=Y(%)を算出し、このY(%)をブランクガス濃度低減率とする。得られたガス濃度低減率X(%)とブランクガス濃度低減率Y(%)から、(X-Y)(%)を算出し、消臭効率とする。
(1)〔樹脂成分として非エラストマー性オレフィン系樹脂を含む層〕/〔樹脂成分としてオレフィン系エラストマーを含む層〕/〔樹脂成分として非エラストマー性オレフィン系樹脂を含む層〕の構成、
(2)〔樹脂成分としてオレフィン系エラストマーと非エラストマー性オレフィン系樹脂のブレンドを含む層〕/〔樹脂成分としてオレフィン系エラストマーを含む層〕/〔樹脂成分としてオレフィン系エラストマーと非エラストマー性オレフィン系樹脂のブレンドを含む層〕の構成、
である。本発明の伸縮性フィルムがこのような構成を有することにより、本発明の効果をより発現させ得るとともに、本発明の伸縮性フィルムは、取り扱い性により優れ得るとともに、耐ブロッキング性により優れ得る。
本発明の伸縮性フィルムを製造する方法としては、本発明の効果を損なわない範囲で、任意の適切な方法を採用し得る。好ましくは、任意の適切な方法で未延伸フィルムを製造した後に、延伸処理することにより得られる。延伸処理は、好ましくは、未延伸フィルムを製造して十分に固化した後に行う。延伸処理の詳細は、前述の通りである。
本発明の伸縮性フィルムは、本発明の効果を有効に利用できる任意の適切な物品に用いることができる。すなわち、本発明の物品は、本発明の伸縮性フィルムを含む。このような物品としては、代表的には、例えば、衛生用品などが挙げられる。このような衛生用品としては、例えば、おむつ(特に、イヤー(耳)部分や、腰周りや脚周りの開口部分の伸縮性部材(ウエストバンドやギャザー)として本発明の伸縮性フィルムが使用されたおむつ)、サポーター、マスクなどが挙げられる。
図8に示すようなヒステリシス試験を、幅20mmの試験片について、チャック間距離30mmから、引張速度50mm/分にてチャック間距離60mmまで引張り、1分間保持した後、チャック間距離の引張りをなくすまで行い、チャック間距離の引張りをなくしたときの残留歪みを測定した。なお、残留歪みの測定については、製造したフィルムが一軸延伸されたフィルムである場合は、引張り方向を、該延伸の方向と直交する方向(長手(MD)方向に延伸した場合はCD方向)とした。
残留歪みが10mm未満の場合を○とした。
残留歪みが10mm以上の場合を×とした。
通気性は、王研式透気度計(sec/100cc)(旭精工株式会社製、商品名:EG01-7-7MR)を用いて測定した透気度を指標とした。
透気度が9999sec/100cc未満のものについては○(十分な通気性あり)と判断した。
透気度が9999sec/100cc以上99999sec/100cc未満のものについては△(中程度の通気性あり)と判断した。
透気度が99999sec/100cc以上のものについては×(通気性無し)と判断した。
なお、表1において、「フィルムそのまま」とは、作製したフィルムをそのままの状態で通気性の測定を行ったことを意味する。また、表1において、「幅方向に2倍」とは、作製したフィルムを幅方向に2倍伸張した状態で通気性の測定を行ったことを意味する。
消臭効率を、下記の(i)(実施例1、比較例1)または(ii)(実施例2~4、比較例2)のようにして算出した。
(i)20℃、65%RHの恒温恒湿室中において、140mm×200mmの大きさに切り出した測定対象の伸縮性フィルムを容積3Lのテドラーバッグに入れた。次に、活性炭を通過させた無臭空気3Lを該テドラーバッグ内に封入後、臭気ガスを所定の初期ガス濃度P(アンモニアについては初期ガス濃度が100ppm、硫化水素については初期ガス濃度が4ppm)となるように、該テドラーバッグ内に注入した。その後、経時的にガス濃度をガス検知管(株式会社ガステック製)でモニターし、3時間後におけるガス濃度Qを測定した。[(P-Q)/P]×100=X(%)を算出し、このX(%)をガス濃度低減率とした。他方、測定対象の伸縮性フィルムをテドラーバッグに入れずに同様の測定を行い、3時間後におけるガス濃度Q0を測定し、[(P-Q0)/P]×100=Y(%)を算出し、このY(%)をブランクガス濃度低減率とした。得られたガス濃度低減率X(%)とブランクガス濃度低減率Y(%)から、(X-Y)(%)を算出し、消臭効率とした。
(ii)25℃、20%RHの恒温恒湿室中において、100mm×100mmの大きさに切り出した測定対象の伸縮性フィルムを容積5LのスマートバッグPA(ジーエルサイエンス株式会社製)に入れた。次に、活性炭を通過させた無臭空気2Lを該スマートバッグPA内に封入後、臭気ガスを所定の初期ガス濃度P(アンモニアについては初期ガス濃度が100ppm、硫化水素については初期ガス濃度が4ppm)となるように、該スマートバッグPA内に注入した。その後、経時的にガス濃度をガス検知管(株式会社ガステック製)でモニターし、3時間後におけるガス濃度Qを測定する。[(P-Q)/P]×100=X(%)を算出し、このX(%)をガス濃度低減率とした。他方、測定対象の伸縮性フィルムをスマートバッグPAに入れずに同様の測定を行い、3時間後におけるガス濃度Q0を測定し、[(P-Q0)/P]×100=Y(%)を算出し、このY(%)をブランクガス濃度低減率とした。得られたガス濃度低減率X(%)とブランクガス濃度低減率Y(%)から、(X-Y)(%)を算出し、消臭効率とした。
消臭効率が10%以上を○(消臭性が非常に良好)と判断した。
消臭効率が1%以上10%未満を△(消臭性が良好)と判断した。
消臭効率が1%未満を×(消臭性が不良)と判断した。
ポリエチレン(HDPE)(東ソー社製、商品名:ニポロンハード1000):100重量部、炭酸カルシウム(平均粒子径=1.1μm):150重量部、二酸化ケイ素:3重量部、酸化亜鉛:1重量部を、表層押出機に投入し、アモルファスPP(エクソンモービル社製、商品名:ビスタマックス6202):100重量部、炭酸カルシウム(平均粒子径=1.1μm):150重量部、二酸化ケイ素:3重量部、酸化亜鉛:1重量部を、中間層押出機に投入し、Tダイから3層(表層/中間層/表層)で共押し出して、厚み80μmの未延伸フィルム(1)を製造した。
次に、未延伸フィルム(1)を、幅方向に3.8倍の倍率で延伸し、伸縮性フィルム(1)を得た。
結果を表1に示した。
ポリエチレン(HDPE)(東ソー社製、商品名:ニポロンハード4020):100重量部、炭酸カルシウム(平均粒子径=1.1μm):150重量部、二酸化ケイ素:3重量部、酸化亜鉛:1重量部を、表層押出機に投入し、アモルファスPP(エクソンモービル社製、商品名:ビスタマックス6102):100重量部、炭酸カルシウム(平均粒子径=1.1μm):150重量部、二酸化ケイ素:3重量部、酸化亜鉛:1重量部を、中間層押出機に投入し、Tダイから3層(表層/中間層/表層)で共押し出して、厚み60μmの未延伸フィルム(2)を製造した。
次に、未延伸フィルム(2)を、幅方向に3.8倍の倍率で延伸し、伸縮性フィルム(2)を得た。
結果を表1に示した。
ポリエチレン(HDPE)(東ソー社製、商品名:ニポロンハード4020):100重量部、炭酸カルシウム(平均粒子径=1.1μm):150重量部、二酸化ケイ素:3重量部、酸化亜鉛:1重量部を、表層押出機に投入し、アモルファスPP(エクソンモービル社製、商品名:ビスタマックス6102):100重量部、炭酸カルシウム(平均粒子径=1.1μm):150重量部を、中間層押出機に投入し、Tダイから3層(表層/中間層/表層)で共押し出して、厚み60μmの未延伸フィルム(3)を製造した。
次に、未延伸フィルム(3)を、幅方向に3.8倍の倍率で延伸し、伸縮性フィルム(3)を得た。
結果を表1に示した。
ポリエチレン(HDPE)(東ソー社製、商品名:ニポロンハード4020):100重量部、炭酸カルシウム(平均粒子径=1.1μm):150重量部を、表層押出機に投入し、アモルファスPP(エクソンモービル社製、商品名:ビスタマックス6102):100重量部、炭酸カルシウム(平均粒子径=1.1μm):150重量部、二酸化ケイ素:3重量部、酸化亜鉛:1重量部を、中間層押出機に投入し、Tダイから3層(表層/中間層/表層)で共押し出して、厚み60μmの未延伸フィルム(4)を製造した。
次に、未延伸フィルム(4)を、幅方向に3.8倍の倍率で延伸し、伸縮性フィルム(4)を得た。
結果を表1に示した。
ポリエチレン(HDPE)(東ソー社製、商品名:ニポロンハード1000):100重量部、炭酸カルシウム(平均粒子径=1.1μm):150重量部を、表層押出機に投入し、アモルファスPP(エクソンモービル社製、商品名:ビスタマックス6202):100重量部、炭酸カルシウム(平均粒子径=1.1μm):150重量部を、中間層押出機に投入し、Tダイから3層(表層/中間層/表層)で共押し出して、厚み80μmの未延伸フィルム(C1)を製造した。
次に、未延伸フィルム(C1)を、幅方向に3.8倍の倍率で延伸し、伸縮性フィルム(C1)を得た。
結果を表1に示した。
ポリエチレン(HDPE)(東ソー社製、商品名:ニポロンハード4020):100重量部、炭酸カルシウム(平均粒子径=1.1μm):150重量部を、表層押出機に投入し、アモルファスPP(エクソンモービル社製、商品名:ビスタマックス6102):100重量部、炭酸カルシウム(平均粒子径=1.1μm):150重量部を、中間層押出機に投入し、Tダイから3層(表層/中間層/表層)で共押し出して、厚み60μmの未延伸フィルム(C2)を製造した。
次に、未延伸フィルム(C2)を、幅方向に3.8倍の倍率で延伸し、伸縮性フィルム(C2)を得た。
結果を表1に示した。
充填剤 20
空隙 30
消臭剤 50
伸縮性フィルム 100
A層 101
B層 102
C層 103
Claims (33)
- 伸縮性を有するフィルムであって、
消臭剤を含む、
伸縮性フィルム。 - 前記消臭剤が化学吸着消臭剤である、請求項1に記載の伸縮性フィルム。
- 前記化学吸着消臭剤が、二酸化ケイ素と酸化亜鉛を含む、請求項2に記載の伸縮性フィルム。
- 前記化学吸着消臭剤中の二酸化ケイ素と酸化亜鉛の合計の含有割合が50重量%~100重量%である、請求項3に記載の伸縮性フィルム。
- 前記化学吸着消臭剤中の二酸化ケイ素と酸化亜鉛の含有比率が、二酸化ケイ素:酸化亜鉛(重量比率)として、5:95~95:5である、請求項3に記載の伸縮性フィルム。
- 前記化学吸着消臭剤中の二酸化ケイ素と酸化亜鉛の含有比率が、二酸化ケイ素:酸化亜鉛(重量比率)として、60:40~80:20である、請求項5に記載の伸縮性フィルム。
- オレフィン系樹脂と充填剤を含む、請求項1に記載の伸縮性フィルム。
- 前記オレフィン系樹脂がオレフィン系エラストマーを含む、請求項7に記載の伸縮性フィルム。
- 前記オレフィン系エラストマーがα-オレフィン系エラストマーを含む、請求項8に記載の伸縮性フィルム。
- 前記α-オレフィン系エラストマーがプロピレン系エラストマーである、請求項9に記載の伸縮性フィルム。
- 前記充填剤が、無機粒子、有機粒子から選ばれる少なくとも1種である、請求項7に記載の伸縮性フィルム。
- 前記充填剤が無機粒子である、請求項11に記載の伸縮性フィルム。
- 前記無機粒子が、タルク、酸化チタン、酸化カルシウム、酸化マグネシウム、酸化亜鉛、酸化チタン、炭酸カルシウム、シリカ、クレー、マイカ、硫酸バリウム、ウィスカー、水酸化マグネシウムから選ばれる少なくとも1種である、請求項12に記載の伸縮性フィルム。
- 前記無機粒子が炭酸カルシウムである、請求項13に記載の伸縮性フィルム。
- 未延伸フィルムを延伸処理することにより得られる、請求項1に記載の伸縮性フィルム。
- 2層以上の積層体からなり、前記消臭剤が、該積層体を構成する層の少なくとも1つの層に含まれる、請求項1に記載の伸縮性フィルム。
- 前記消臭剤が、少なくとも、最外層の少なくとも一方の層に含まれる、請求項16に記載の伸縮性フィルム。
- 3層の積層体からなる、請求項16に記載の伸縮性フィルム。
- 前記積層体の層構成をA層/B層/C層と表した場合、前記消臭剤が、A層のみ、B層のみ、C層のみ、A層とB層の両方のみ、B層とC層の両方のみ、A層とC層の両方のみ、および、A層とB層とC層の全てのいずれかに含まれる、請求項18に記載の伸縮性フィルム。
- 前記消臭剤がA層とB層とC層の全てに含まれる、請求項19に記載の伸縮性フィルム。
- 3層の積層体からなるものであって、その層構成をA層/B層/C層と表した場合、表面層であるA層およびC層の厚みが2μm~40μmである、請求項1に記載の伸縮性フィルム。
- 3層の積層体からなるものであって、その層構成をA層/B層/C層と表した場合、中間層であるB層の厚みが10μm~70μmである、請求項21に記載の伸縮性フィルム。
- 前記消臭剤が化学吸着消臭剤である、請求項22に記載の伸縮性フィルム。
- 前記化学吸着消臭剤が、二酸化ケイ素と酸化亜鉛を含む、請求項23に記載の伸縮性フィルム。
- 前記化学吸着消臭剤中の二酸化ケイ素と酸化亜鉛の合計の含有割合が50重量%~100重量%である、請求項24に記載の伸縮性フィルム。
- 前記化学吸着消臭剤中の二酸化ケイ素と酸化亜鉛の含有比率が、二酸化ケイ素:酸化亜鉛(重量比率)として、5:95~95:5である、請求項24に記載の伸縮性フィルム。
- 前記化学吸着消臭剤中の二酸化ケイ素と酸化亜鉛の含有比率が、二酸化ケイ素:酸化亜鉛(重量比率)として、60:40~80:20である、請求項26に記載の伸縮性フィルム。
- 検知管法によって測定される消臭試験の開始3時間後におけるアンモニアおよび硫化水素の消臭効率がいずれも10%以上である、請求項1に記載の伸縮性フィルム。
ただし、消臭効率は、下記の(i)または(ii)のようにして算出される。
(i)20℃、65%RHの恒温恒湿室中において、140mm×200mmの大きさに切り出した測定対象の伸縮性フィルムを容積3Lのテドラーバッグに入れる。次に、活性炭を通過させた無臭空気3Lを該テドラーバッグ内に封入後、臭気ガスを所定の初期ガス濃度P(アンモニアについては初期ガス濃度が100ppm、硫化水素については初期ガス濃度が4ppm)となるように、該テドラーバッグ内に注入する。その後、経時的にガス濃度をガス検知管(株式会社ガステック製)でモニターし、3時間後におけるガス濃度Qを測定する。[(P-Q)/P]×100=X(%)を算出し、このX(%)をガス濃度低減率とする。他方、測定対象の伸縮性フィルムをテドラーバッグに入れずに同様の測定を行い、3時間後におけるガス濃度Q0を測定し、[(P-Q0)/P]×100=Y(%)を算出し、このY(%)をブランクガス濃度低減率とする。得られたガス濃度低減率X(%)とブランクガス濃度低減率Y(%)から、(X-Y)(%)を算出し、消臭効率とする。
(ii)25℃、20%RHの恒温恒湿室中において、100mm×100mmの大きさに切り出した測定対象の伸縮性フィルムを容積5LのスマートバッグPA(ジーエルサイエンス株式会社製)に入れる。次に、活性炭を通過させた無臭空気2Lを該スマートバッグPA内に封入後、臭気ガスを所定の初期ガス濃度P(アンモニアについては初期ガス濃度が100ppm、硫化水素については初期ガス濃度が4ppm)となるように、該スマートバッグPA内に注入する。その後、経時的にガス濃度をガス検知管(株式会社ガステック製)でモニターし、3時間後におけるガス濃度Qを測定する。[(P-Q)/P]×100=X(%)を算出し、このX(%)をガス濃度低減率とする。他方、測定対象の伸縮性フィルムをスマートバッグPAに入れずに同様の測定を行い、3時間後におけるガス濃度Q0を測定し、[(P-Q0)/P]×100=Y(%)を算出し、このY(%)をブランクガス濃度低減率とする。得られたガス濃度低減率X(%)とブランクガス濃度低減率Y(%)から、(X-Y)(%)を算出し、消臭効率とする。 - 王研式透気度計により測定される透気度が99999sec/100cc未満である、請求項1に記載の伸縮性フィルム。
- 100%伸張した状態での王研式透気度計により測定される透気度が60000sec/100cc未満となる伸張方向を有する、請求項1に記載の伸縮性フィルム。
- ヒステリシス試験において、幅20mm、チャック間距離30mmから、引張速度50mm/分にてチャック間距離60mmまで引張り、1分間保持した後、チャック間距離の引張りをなくしたときの残留歪みが10mm以下となる引張り方向を有する、請求項1に記載の伸縮性フィルム。
- 衛生用品に用いられる、請求項1に記載の伸縮性フィルム。
- 請求項1に記載の伸縮性フィルムを含む、物品。
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JP2012035256A (ja) * | 2010-07-13 | 2012-02-23 | Mitsubishi Plastics Inc | 多孔性吸着フィルム |
JP2014059217A (ja) * | 2012-09-18 | 2014-04-03 | Toppan Printing Co Ltd | 臭気吸着材、臭気検知キット、その使用方法 |
JP2016069501A (ja) * | 2014-09-30 | 2016-05-09 | 三井化学株式会社 | 4−メチル−1−ペンテン系重合体を含む消臭性に優れた樹脂組成物およびそれからなる成形体 |
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JPS63229142A (ja) * | 1987-03-18 | 1988-09-26 | Ookeetrading Kk | 脱臭材の製法 |
JP2012035256A (ja) * | 2010-07-13 | 2012-02-23 | Mitsubishi Plastics Inc | 多孔性吸着フィルム |
JP2014059217A (ja) * | 2012-09-18 | 2014-04-03 | Toppan Printing Co Ltd | 臭気吸着材、臭気検知キット、その使用方法 |
JP2016069501A (ja) * | 2014-09-30 | 2016-05-09 | 三井化学株式会社 | 4−メチル−1−ペンテン系重合体を含む消臭性に優れた樹脂組成物およびそれからなる成形体 |
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