KR20160036479A - Humidification filtering material and humidification filter - Google Patents
Humidification filtering material and humidification filter Download PDFInfo
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- KR20160036479A KR20160036479A KR1020150119372A KR20150119372A KR20160036479A KR 20160036479 A KR20160036479 A KR 20160036479A KR 1020150119372 A KR1020150119372 A KR 1020150119372A KR 20150119372 A KR20150119372 A KR 20150119372A KR 20160036479 A KR20160036479 A KR 20160036479A
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- humidifying filter
- extract
- nonwoven fabric
- filter medium
- humidifying
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F6/00—Air-humidification, e.g. cooling by humidification
- F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
- F24F6/04—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using stationary unheated wet elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/02—Loose filtering material, e.g. loose fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
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- F24F3/1603—
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F6/00—Air-humidification, e.g. cooling by humidification
- F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
- F24F6/06—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using moving unheated wet elements
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- F24F2003/1689—
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtering Materials (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Air Humidification (AREA)
Abstract
<Task>
A humidifying filter element capable of suppressing generation of malodor and discoloration of a filter medium when used for a long period of time and suppressing physical strength from being lowered by the influence of the supply water and a humidifying filter formed by using the humidifying filter medium.
[Solution]
Wherein the humidifying filter medium has an internal bonding strength of 50 to 400 mJ and a basis weight of 40 to 150 g / m 2 , and the antibacterial component is a plant-derived material having an antibacterial component contained in the nonwoven fabric substrate Wherein the antimicrobial component is selected from the group consisting of an extract from a persimmon extract, a ginkgo leaf extract, a tea extract, and a coffee bean extract. And at least one selected is preferable.
Description
The present invention relates to a humidifying filter medium and a humidifying filter using the same.
The humidification method of the humidifier includes a vaporization type, a heating type, and an ultrasonic type. The vaporization type is a method in which moisture is vaporized in the humidifying filter by blowing air into a humidifying filter containing water. The heating method is a method in which water is heated by a heater and boiled to transform it into steam. The ultrasonic method is a method in which water made of fine particles is sent out to the fan by applying ultrasonic waves. In addition, although a vaporization method is generally used, a hybrid method of using other methods in a case where humidity is low is also known. In the vaporization type humidifier or the hybrid type humidifier using the vaporization method, the lower part of the humidification filter is immersed in water, the entire humidifying filter is made wet by the capillary phenomenon, and the humidifying filter is ventilated One air is humidified and supplied to the room. As the humidifying filter, there is known a filter formed by using a humidifying filter material made of a nonwoven fabric.
However, when the humidifying filter is continuously used for a long period of time, there has been a problem that the humidifying filter medium is discolored due to the influence of fungi or bacteria, and the humidifying filter is apparently messy. In addition, it was also a problem that odor originating from fungi or bacteria was generated. In addition, fungus and bacteria may propagate in the water supplied to the humidifying filter. Since the humidifying filter sucks the water supplied, it causes the discoloration and the generation of odor in the humidifying filter medium. As a countermeasure for suppressing the growth of fungi and bacteria in the humidifying filter, there is a method (for example, Patent Document 1) of producing a humidifying filter material by using a fiber web containing synthetic fibers mixed with an antibacterial component having antibacterial and deodorizing properties , And a method of impregnating a humectant filter material with a synthetic resin emulsion containing an antibacterial component mixed with a hydrophilic porous fine powder (for example, Patent Document 2). However, since the antibacterial component is rich in hydrophilicity, there is a problem unique to the antibacterial component-containing humidifying filter material that the physical strength is liable to be lowered with the passage of time due to the influence of water supplied in the humidifier, . The physical strength of the humidifying filter medium is lowered, so that the structure of the humidifying filter is deformed to deteriorate the breathability of the humidifying filter. As a result, there arises a problem that the amount of humidification decreases.
Further, as a countermeasure against the contamination of the humidifying filter, there is disclosed a humidifying filter (for example, see Patent Document 3) which is made clean using a water-resistant substrate. The humidifying filter of Patent Document 3 is not a preventive measure to prevent the occurrence of pollution, but a post-treatment measure that focuses on "to remove contamination that has occurred".
Disclosure of the Invention Problem to be solved by the Invention It is an object of the present invention to provide a humidifying filter medium for use in a humidifier using a vaporizing method, which solves the drawbacks of the prior art, and suppresses the growth of fungi and bacteria in the humidifying filter medium and the feed water, It is possible to maintain the clean state and to suppress generation of odor and discoloration of the filter medium when used for a long period of time and to suppress the drop of the physical strength due to the influence of the supply water, And a humidifying filter formed by molding using the filter material.
The present invention relates to a nonwoven fabric substrate and a nonwoven fabric substrate which are characterized by having a specific internal bonding strength and basis weight in a humidifying filter material having an antibacterial component contained in the nonwoven fabric substrate and an antimicrobial component derived from an antimicrobial polyphenolic compound A humidifying filter medium, and a humidifying filter formed by using the humidifying filter medium.
That is, the present invention is as follows.
1. As a humidifying filter medium,
A nonwoven fabric substrate,
An antibacterial component contained in the nonwoven fabric substrate,
Wherein the humectant filter medium has an internal bonding strength of 50 to 400 mJ, a basis weight of 40 to 150 g / m 2 , and the antibacterial component is an antimicrobial polyphenolic compound derived from plants.
2. The humidifying filter material according to above-mentioned 1, wherein the plant-derived antimicrobial polyphenol compound is at least one selected from the group consisting of sweet potato extract, ginkgo leaf extract, tea extract, coffee bean extract.
3. A humidifying filter formed by using the humidifying filter material described in 1 or 2 above.
The humidifying filter medium of the present invention is capable of suppressing the generation of malodor caused by fungi and bacteria and discoloration of the humidifying filter medium even when used for a long period of time and also has a characteristic that the physical strength of the humidifying filter is not easily lowered even under the influence of the feed water, It becomes possible to continuously use a humidifying filter of a clean and stable humidification amount.
Hereinafter, the humidifying filter medium of the present invention will be described in detail.
Humidifying the filter material of the present invention, and a wet filter material having an antimicrobial component which contains the non-woven fabric base material and a nonwoven fabric base material, the internal bond strength of the wet filtration is 50 ~ 400 mJ, a basis weight of 40 ~ 150 g / m 2 of .
The internal bonding strength in the humidifying filter material of the present invention will be described. The internal bond strength refers to JAPAN TAPPI (J.TAPPI) paper pulp test method No. 1. 18-2: 2000: " Paper and cardboard-internal bond strength test method " Part 2: Internal bond tester method (Paper and board-Determination of internal bond strength Part 2) Lt; / RTI > The internal bonding strength of the humidifying filter medium in the present invention is 50 to 400 mJ, more preferably 60 to 360 mJ, and even more preferably 70 to 350 mJ. In the present invention, since the hydrophilic antibacterial component is preferably used as the antibacterial component, when the internal bonding strength of the humidifying filter medium containing the antibacterial component is less than 50 mJ, the physical strength is lowered with time under the influence of the supplied water , The structure of the humidifying filter changes, and the air permeability and the humidification amount of the humidifying filter deteriorate, which is not preferable. On the other hand, when the internal bonding strength is higher than 400 mJ, the number of fibers constituting the humidifying filter material is increased or the amount of the adhesive added for reinforcement is increased, the voids between the fibers are decreased and the humidification amount is decreased .
The method of adjusting the internal bonding strength of the humidifying filter medium to a specific range is not particularly limited as long as the (rear) entanglement between the fibers constituting the humidifying filter medium is strengthened. For example, the number of fibers constituting the humidifying filter medium A method of increasing the intersection point of each fiber, a method of applying an adhesive to the intersection of each fiber to improve the adhesion between the fibers at the intersection, a method of strengthening the (rear) entanglement of each fiber, and the like .
The basis weight of the humidifying filter material of the present invention is preferably 40 to 150 g / m 2 , more preferably 50 to 140 g / m 2 , and still more preferably 60 to 130 g / m 2 . When the basis weight is less than 40 g / m 2 , it is not preferable because sufficient internal bond strength can not be exhibited. When the basis weight is more than 150 g / m 2 , the number of fibers constituting the humidifying filter material is increased, or the amount of the adhesive added for reinforcement is increased, so that the pores between the fibers are decreased and the humidification amount is decreased.
In the humidifying filter medium of the present invention, the antibacterial component is an antimicrobial polyphenol compound derived from a plant. The plant-derived antimicrobial polyphenol compounds derived from plants are not particularly limited, but the components preferably used in the present invention include at least the components selected from the group consisting of apperitent extract, ginkgo leaf extract, tea extract, 1 < / RTI > In the present invention, it has been found that antimicrobial activity can be maintained for a longer period of time by using at least one member selected from the group consisting of scent extract, gingko leaf extract, tea extract, and coffee bean extract as antimicrobial components. In addition, in the humidifying filter medium of the present invention, one kind selected from the group consisting of sweet potato extract, ginkgo leaf extract, tea extract, and coffee bean extract may be contained, and if necessary, have. It is also possible to contain a mixture of at least one kind selected from this group and another antibacterial component.
When a humidifying filter is used, the humidifying filter medium may repeat the wet state and the dry state depending on the use situation. In this case, there is a case where an inorganic substance such as calcium, magnesium, silicon, silica and the like contained in the humidifying water is deposited on the surface of the humidifying filter medium to form a scale. When the scale is formed, the antimicrobial agent on the scale surface tends to be unevenly distributed. As a result, the microorganisms reproduce on the scale and produce odors. In order to suppress the scale, it is preferable to use water not containing an inorganic substance such as ion-exchanged water or distilled water for humidifying water, but it is not realistic considering the use in ordinary households. The inventors of the present invention have found that the inclusion of a plant-derived antimicrobial polyphenol compound in a humidifying filter medium suppresses scale generation and, as a result, can suppress odor. The polyphenol compound has a large number of phenolic hydroxyl groups, but the hydroxyl groups of the polyphenol compounds dissolved in the humidifying water from the humidifying filter medium are combined with calcium, magnesium or silicon, which is a main component of the scale, and precipitated in humid water, The adhesion of the scale to the wafer W is suppressed. Further, since the polyphenol compound has a complex three-dimensional three-dimensional structure, the compound such as calcium, magnesium, or silicon can aggregate and crystallize, which can hinder stereolendic. When one long-chain interfering molecule of the polyphenol compound adheres to the vicinity of the scale, it is possible to inhibit the crystallization of the far-off layer in a wide range around the polyphenol compound to prevent generation of large-scale generation.
The impure extract obtained in the present invention can be obtained by pulverizing immature fruit of a cultivar having a rich tannin component, fermenting it by adding an appropriate amount of water, and then purifying it. Also, there is a method of purifying the tannin by removing a low-molecular component by using an ultrafiltration membrane while heating the stock solution of the juice (Japanese Patent Application Laid-Open No. 10-15358), alcohol, dipotassium phosphate, (Matsuo T. and Ito S., "A simple and rapid purification method of condensed tannins from several young fruits. &Quot;, Agricultural and Biological Chemistry, Vol 45 (8), 1981, p.1885-1887). There is no particular limitation on the method for producing the extract of the present invention of the present invention. Among the catechins, apical extract extract has a ratio of epicatechin, catechin gallate, epigallocatechin and gallocatechin gallate in a ratio of 1: 1: 2: 2 Is a polymer compound having a molecular weight of about 12,000 to about 30,000 and a molecular weight of about 15,000, and is classified as a delphinidin-based proanthocyanidin polymer or a condensed tannin. (-OH group) and various odor components chemically bind to each other, and in particular, it has deodorizing properties such as ammonia odor and hydrogen sulfide odor, Effect.
The dry matter content of the extract of extract from the moisturizing filter medium of the present invention is preferably 0.5 to 12 g / m 2 , more preferably 1 to 10 g / m 2 , more preferably 2 to 8 g / m < 2 & gt ;. If it is less than 0.5 g / m 2 , sufficient antimicrobial activity may not be obtained. If it is more than 12 g / m 2 , sufficient antimicrobial activity may be obtained, but the odor of the tannin extract may be unpleasant to a sensitive person .
The ginkgo biloba extract in the present invention is a hydrophilic natural extract component extracted from leaves, seeds, bark, tree trunks and the like of a bank. Ginkgo biloba extract is a flavonoid glycoside with sugar chain attached to a flavonoid called quercetin, kaempferol, isorhamnetin, ginkgolide A, ginkgolide B, ginkowide C, A compound such as terpene lactone, such as bilobalide, or a component such as proanthocyanidin. Among these, the blending amount of the flavonoid glycoside is preferably 300% by mass or more, 1,500% by mass or less, more preferably 500% by mass or more, and still more preferably 600% by mass or more, relative to terpene lactone . When the blending amount of the flavonoid glycoside exceeds 1500% by mass, it may be difficult to obtain the extract stably. When the flavonoid glycoside is contained in the above-mentioned range, the effect of the filter material of the humidifying filter of the present invention, such as antibacterial effect, is constantly obtained.
The dried content of the ginkgo biloba extract in the humidifying filter material of the present invention is preferably 0.5 to 12 g / m 2 , more preferably 1 to 10 g / m 2 , and more preferably 2 to 8 g / m 2 based on the nonwoven substrate 2 is more preferable. When it is less than 0.5 g / m 2 , sufficient antimicrobial activity may not be obtained, and even when the content is more than 12 g / m 2 , the antimicrobial property does not remarkably improve and is preferably 12 g / m 2 or less Do.
The tea extract of the present invention is a hydrophilic natural extract component extracted from tea leaves. Green tea such as green tea, green tea such as green tea, green tea such as oolong tea, green tea such as oolong tea, semi-fermented tea represented by oolong tea, fermented tea represented by black tea, , And the like. The tea extract is prepared by mixing catechins such as epicatechin and its hydroxy chain epigallocatechin, epicatechin gallate and epigallocatechin gallate, which are gallic acid ester derivatives thereof, As shown in FIG. These catechin components exhibit a strong antimicrobial and bactericidal effect and an inhibitory action against bacterial toxins.
The dry content of the tea extract is preferably 0.5 to 12 g / m 2 , more preferably 1 to 10 g / m 2 , and more preferably 2 to 8 g / m 2 based on the nonwoven base material in the humidifying filter material of the present invention. m < 2 & gt ;. When it is less than 0.5 g / m 2 , sufficient antimicrobial activity may not be obtained, and even when the content is more than 12 g / m 2 , the antimicrobial property does not remarkably improve and is preferably 12 g / m 2 or less Do.
The coffee bean extracted extract in the present invention is a hydrophilic natural extract component extracted from coffee beans. The inventors of the present invention have found that chlorogenic acid, which is an extract of coffee bean, has excellent antimicrobial activity and has reached the present invention. The natural extract component extracted from coffee beans (coffee beans) after roasting is not preferable because the content of chlorogenic acids is remarkably reduced as compared with coffee beans. It has been known that chlorogenic acid has a strong antioxidative effect in the past and recently it has been used as a diet drink by paying attention to the action of promoting the energy consumption and fat decomposition of chlorogenic acids and caffeine which are natural extract components extracted from coffee bean . The chlorogenic acid is said to be an ester of a cinnamic acid derivative and quinic acid. The natural extract components extracted from coffee bean include 3-caffeoylquinic acid, 4-caffeoyl 4-caffeoylquinic acid, 5-caffeoylquinic acid, 3,4-dicaffeoylquinic acid, 3,5-dicaffeoylquinic acid ( It is confirmed that the product contains seven kinds of chlorogenic acids such as 3,5-dicaffeoylquinic acid, 4,5-dicaffeoylquinic acid and 5-feruloylquinic acid. .
The dry content of the coffee bean extracted extract in the humidifying filter material of the present invention is preferably 0.5 to 12 g / m 2 , more preferably 1 to 10 g / m 2 , and more preferably 2 to 8 g / m < 2 >. When it is less than 0.5 g / m 2 , sufficient antimicrobial activity may not be obtained, and even when the content is more than 12 g / m 2 , the antimicrobial property does not remarkably improve and is preferably 12 g / m 2 or less Do.
The method of incorporating the plant-derived antimicrobial polyphenol compound into the nonwoven fabric substrate is not particularly limited as far as it is capable of uniformly containing the component on the nonwoven fabric substrate. A solution or dispersion containing an antimicrobial polyphenolic compound derived from a plant is applied to a nonwoven fabric substrate by a method such as coating, impregnation, or spraying, and the solvent or dispersion medium is removed by a method such as drying, Of the polyphenol compound is contained in the nonwoven fabric substrate.
Specific examples of the solvent or dispersion medium for incorporating the plant-derived antimicrobial polyphenol compound into the nonwoven fabric substrate include methanol, ethanol, 1-propanol, 2-propanol, , And 1-butanol; Ketones such as acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone and isophorone; ketones such as acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone and isophorone; But are not limited to, methyl acetate, ethyl acetate, n-buthyl acetate, isobuthyl acetate, isopropyl acetate, ethyl lactate, ethylene Examples of the solvent include esters such as ethylene carbonate and ethylene carbonate, diethyl ether, glycol dimethyl ether, glycol diethyl ether, dioxane, dioxolane, tetra Aromatic hydrocarbons such as benzene, toluene, xylene and styrene, such as tetrahydrofuran; aromatic hydrocarbons such as benzene, toluene, xylene and styrene; Aliphatic hydrocarbons such as pentane, hexane and cyclohexane; Halogenated hydrocarbons such as dichloromethane, ethylene chloride, tetrachloromethane, chloroform, ethylene chlorohydrin, chlorobenzene, and dichlorobenzene; halogenated hydrocarbons such as dichloromethane, chlorobenzene, and dichlorobenzene; Amides such as N, N-dimethylformamide and N, N-dimethylacetamide; Water or the like can be used.
Examples of the polyhydric alcohols include ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, propanediol, But are not limited to, neopentyl glycol, glycerin, trimethylol ethane, trimethylol propane, diglycerin, pentaerythritol, dipentaerythritol, Low molecular weight polyols such as diacetone glycol and hexanetriol are also used.
When the adhesion of the plant-derived antimicrobial polyphenol compound to the nonwoven fabric base is intensified and the appearance of the product is enhanced by the combination or coloration with other components, the effect of the polyphenol compound is not impaired It is one of the preferable methods to use a small amount of binder (adhesive) in the range.
Take specific examples of the binder. Examples of the water-soluble binder include polyvinyl alcohol and starch. Examples of the water-dispersible binder include poly (meth) acrylic ester, polyvinyl acetate, polyvinyl chloride, styrene-butadiene, copolymer latex, and the like, but the present invention is not limited thereto.
It is also possible to further stabilize the content of the plant-derived antimicrobial polyphenol compound in the nonwoven fabric substrate, to maintain the effects such as antimicrobial activity for a longer time for a longer period of time, and to obtain a plant-derived antimicrobial polyphenol- Porous powder (for example, activated carbon or zeolite powder or the like) may be contained in the nonwoven fabric base material in order to alleviate odor.
The nonwoven substrate used in the present invention is not particularly limited and may be a spun bond method, a melt blown method, a dry method (thermal bonding method, resin bonding method, needle punching method at least one method selected from a method such as a needle punching method, a spun lace method, a stitch bonding method, a wet-laid method, and an electro spinning method Nonwoven fabrics can be used. If necessary, a nonwoven fabric produced by combining these plurality of methods can be used.
Examples of the material of the nonwoven fabric substrate used in the present invention include polyamide fibers, polyester fibers, polyalkylene paraoxybenzoate fibers, polyurethane fibers, poly Polyvinyl alcohol fibers, polyvinylidene chloride fibers, polyvinyl chloride fibers, polyacrylonitrile fibers, polyolefin fibers, phenol fibers, Fiberglass, metal fiber, alumina fiber, carbon fiber, activated carbon fiber, wood pulp, bamboo pulp, bamboo pulp, kenaf pulp, straw pulp, bur gas pulp, cotton linter Natural fibers such as pulp, cotton, wool and silk, regenerated cellulose fibers such as phage regenerated pulp and rayon, protein such as collagen, alginic acid, chitin, (Chitosan), it is a regenerated fiber such as a polysaccharide such as starch as a raw material and the like, or be used alone or in combination of fibers and the like given the features, such as hydrophilic or flame resistance of these fibers.
The internal bonding strength of the nonwoven fabric substrate used in the present invention is not particularly limited as long as the internal bonding strength of the humectant filter medium containing the plant-derived antimicrobial polyphenol compound is 50 to 400 mJ, but it is preferably 45 to 395 mJ More preferably 55 to 355 mJ, and still more preferably 65 to 345 mJ. When the internal bond strength of the nonwoven base material is less than 45 mJ or greater than 395 mJ, the internal bonding strength of the humidifying filter medium may not be within a predetermined range.
The basis weight of nonwoven substrate used in the present invention may in a range the basis weight of that wet filter material containing an antimicrobial polyphenol-based compounds derived from plants that are by 40 ~ 150 g / m 2, in particular but not limited to, 35 ~ 145 g / m 2 , more preferably 45 to 135 g / m 2 , and still more preferably 55 to 125 g / m 2 . When the basis weight is less than 35 g / m 2 , or when the basis weight is more than 145 g / m 2 , the basis weight of the humidifying filter material may not fall within a specific range.
The humidifying filter of the present invention is formed by molding the humidifying filter material of the present invention. Examples of the shape include a three-dimensional shape, a corrugate shape, a pleats shape, and the like.
[Example]
Hereinafter, the present invention will be described in more detail by way of examples, but the present invention is not limited to the examples. In the examples, "%" and "part" indicate "% by mass" and "part by weight ", respectively, unless otherwise specified.
(Plant-derived antimicrobial polyphenol compound)
Fruit extract extract: manufactured by Matsuo Yakuhin Sangyo Co., Ltd., trade name: FG-60
Extract of Ginkgo biloba Extract: 8 kg of a mixed solution of ethanol and purified water (volume ratio 1: 1) was added to 1 kg of dried leaves of a bank (dried April new leaves) and stirred at 20 to 40 ° C for 7 hours. The solids were filtered, and the filtrate was concentrated under reduced pressure until the total volume was reduced to about one tenth of the volume at 60 ° C or lower. 0.5 kg of ethyl acetate was added and sufficiently stirred, and the mixture was allowed to stand to obtain a lower portion. The lower layer was concentrated under reduced pressure to obtain brown viscous (viscous) water. The resulting viscous substance was dissolved in a mixed liquid of propylene glycol and purified water (volume ratio 8: 2) about 30 times, and a small amount of insoluble matter was filtered through a filter paper to obtain 8 g of a ginkgo leaf extract solution. 1 g of this product corresponds to 0.1 g of dried ginkgo leaf extract. In the case of using in each of the following examples, the above operation was repeated until a necessary amount was obtained.
Tea extract: manufactured by Mitsubishi-Kagaku Foods Corporation, trade name: Sun Hood (registered trademark) 100
Coffee Bean Extract Extract: manufactured by ORYZA OIL & FAT CHEMICAL CO., LTD., Trade name: Coffee bean Extract-P
(Internal bonding strength (pitting strength))
The internal bond strength was measured by the method described in J. TAPPI Paper Pulp Test Method No. 1. 18-2: 2000. The unit is mJ. The larger the number, the stronger the internal bond strength.
(Basis weight)
The basis weight was measured according to the method described in JIS L 1096 8.3.2a Method A (JIS method). The unit is g / m 2 .
(Example 1)
(RIKABOND (registered trademark) FK-68H, manufactured by Japan Coating Resin Corporation) was mixed at a ratio of 1: 1 dry mass ratio, To obtain a dispersion. Next, a spunlaced nonwoven fabric of polyethylene terephthalate (PET): rayon = 50: 50 (dry mass ratio) having an inner bonding strength of 47 mJ and a basis weight of 93 g / m 2 was used as a nonwoven fabric base, / m < 2 >. After the impregnation, it was dried in a hot air dryer at an internal temperature of 150 ° C for 10 minutes to obtain a humidifying filter medium.
(Example 2)
Except that a spunlaced nonwoven fabric having an inner bond strength of 246 mJ and a basis weight of 94 g / m 2 and having a PET: rayon ratio of 50:50 (dry mass ratio) was used as the nonwoven fabric substrate, and a humidifying filter medium was prepared in the same manner as in Example 1 .
(Example 3)
Except that a spunlaced nonwoven fabric having an internal bonding strength of 394 mJ and a basis weight of 95 g / m 2 and having a PET: rayon ratio of 50:50 (dry mass ratio) was used as the nonwoven fabric substrate, and a humidifying filter medium was prepared in the same manner as in Example 1 .
(Example 4)
Except that a spunlaced nonwoven fabric having an internal bonding strength of 245 mJ and a basis weight of 36 g / m 2 and having a PET: rayon ratio of 50:50 (dry mass ratio) was used as the nonwoven fabric base material, and a humidifying filter medium was prepared in the same manner as in Example 1 .
(Example 5)
A nonwoven fabric substrate was prepared in the same manner as in Example 1, except that a spunlaced nonwoven fabric having an inner bonding strength of 248 mJ and a basis weight of 141 g / m 2 and a PET: rayon = 50: 50 (dry mass ratio) .
(Example 6)
As the nonwoven fabric base material, the internal bond strength of 246 mJ, and basis weight 100 g / m 2 of PET: 50 using a spun lace non-woven fabric (dry weight), and the dry content of gammul extract extract 0.5 g / m 2: Rayon = 50 The same procedure as in Example 1 was carried out to obtain a humidifying filter medium.
(Example 7)
A spunlaced nonwoven fabric having an inner bond strength of 245 mJ and a basis weight of 75 g / m 2 and having a PET: rayon ratio of 50:50 (dry mass ratio) was used as the nonwoven fabric substrate, and the dry content of the persimmon extract was 12 g / m 2 The same procedure as in Example 1 was carried out to obtain a humidifying filter medium.
(Example 8)
Ginkgo biloba extract and an acrylic binder (trade name: Rica Bond (registered trademark) FK-68H, manufactured by Japan Coating Resin Co., Ltd.) were mixed at a dry mass ratio of 1: 1 to obtain a Ginkgo biloba extract solution. Next, using a spunlaced nonwoven fabric having an inner bonding strength of 246 mJ and a basis weight of 99 g / m 2 and a PET: rayon ratio of 50:50 (dry mass ratio) as a base material, the dry content of the ginkgo leaf extract was 0.5 g / m 2 So that the solution was impregnated. After the impregnation, it was dried in a hot air dryer at an internal temperature of 150 ° C for 10 minutes to obtain a humidifying filter medium.
(Example 9)
A spunlaced nonwoven fabric having an inner bond strength of 244 mJ and a basis weight of 93 g / m 2 and a PET: rayon ratio of 50:50 (dry mass ratio) was used as the nonwoven fabric substrate so that the dry content of the ginkgo leaf extract was 3 g / m 2 A humidifying filter medium was obtained in the same manner as in Example 8, except that impregnation was carried out.
(Example 10)
A spunlaced nonwoven fabric having an inner bond strength of 246 mJ and a basis weight of 77 g / m 2 and a PET: rayon ratio of 50:50 (dry mass ratio) was used as the nonwoven fabric substrate so that the dry content of the ginkgo leaf extract was 12 g / m 2 A humidifying filter medium was obtained in the same manner as in Example 8, except that impregnation was carried out.
(Example 11)
The tea extract and an acrylic binder (trade name: Rica Bond (registered trademark) FK-68H, manufactured by Japan Coating Resin Co., Ltd.) were mixed at a dry mass ratio of 1: 1 to obtain a tea extract solution. Next, a spun lace nonwoven fabric having an internal bonding strength of 245 mJ and a basis weight of 99 g / m 2 and a PET: rayon ratio of 50:50 (dry mass ratio) was used as a nonwoven fabric base, and the dry content of the tea extract was 0.5 g / m 2 The solution was impregnated. After the impregnation, it was dried in a hot air dryer at an internal temperature of 150 ° C for 10 minutes to obtain a humidifying filter medium.
(Example 12)
A spun lace nonwoven fabric having an inner bond strength of 246 mJ and a basis weight of 94 g / m 2 and having a PET: rayon ratio of 50:50 (dry mass ratio) was used as the nonwoven fabric substrate and the dry content of the tea extract was 3 g / m 2 A wetting filter medium was obtained in the same manner as in Example 11. [
(Example 13)
A spun lace nonwoven fabric having an inner bond strength of 244 mJ and a basis weight of 75 g / m 2 and having a PET: rayon ratio of 50:50 (dry mass ratio) was used as the nonwoven fabric substrate and the dry content of the tea extract was 12 g / m 2 A wetting filter medium was obtained in the same manner as in Example 11. [
(Example 14)
A coffee bean extract and an acrylic binder (trade name: Rica Bond (registered trademark) FK-68H, manufactured by Japan Coating Resin Co., Ltd.) were mixed at a dry mass ratio of 1: 1 to obtain a coffee bean extract solution. Next, a spun lace nonwoven fabric having an inner bonding strength of 246 mJ and a basis weight of 100 g / m 2 of PET: rayon = 50:50 (dry mass ratio) was used as a nonwoven fabric base, and the dry content of the coffee bean extract was 0.5 g / m 2 2 < / RTI > After the impregnation, it was dried in a hot air dryer at an internal temperature of 150 ° C for 10 minutes to obtain a humidifying filter medium.
(Example 15)
A spunlaced nonwoven fabric having an inner bond strength of 244 mJ and a basis weight of 93 g / m 2 and a PET: rayon ratio of 50:50 (dry mass ratio) was used as the nonwoven fabric substrate, and the dry content of the coffee bean extract was 3 g / m 2 , A humidifying filter medium was obtained in the same manner as in Example 14. The results are shown in Table 1. < tb >< TABLE >
(Example 16)
Using a spunlaced nonwoven fabric having an internal bonding strength of 246 mJ and a basis weight of 78 g / m 2 and a PET: rayon ratio of 50:50 (dry mass ratio) as the nonwoven fabric substrate, the dry content of the coffee bean extract was 12 g / m 2 , A humidifying filter medium was obtained in the same manner as in Example 14. The results are shown in Table 1. < tb >< TABLE >
(Example 17)
A spunlaced nonwoven fabric having an inner bond strength of 243 mJ and a basis weight of 96 g / m 2 and having a PET: rayon ratio of 50:50 (dry mass ratio) was used as the nonwoven fabric substrate, and a soybean extract (Wako Pure Chemical Industries, Except that it was impregnated with an isoflavone (aglycone) mixture manufactured by Wako Pure Chemical Industries, Ltd. and having a dry content of 3 g / m 2 , A humidifying filter medium was obtained in the same manner as in Example 11.
(Comparative Example 1)
As a nonwoven fabric substrate, a spun lace nonwoven fabric having an inner bonding strength of 251 mJ and a basis weight of 101 g / m 2 of PET: rayon = 50: 50 (dry mass ratio) was used as a wetting filter medium.
(Comparative Example 2)
Except that a spunlaced nonwoven fabric having an internal bonding strength of 39 mJ and a basis weight of 36 g / m 2 and having a PET: rayon ratio of 50:50 (dry mass ratio) was used as the nonwoven fabric substrate in Example 1, .
(Comparative Example 3)
The same procedure as in Example 1 was carried out except that the nonwoven fabric substrate used was a PET nonwoven fabric having an inner bonding strength of 34 mJ and a basis weight of 96 g / m 2 and a PET: rayon ratio of 50:50 (dry mass ratio) .
(Comparative Example 4)
Except that a spunlaced nonwoven fabric having an internal bonding strength of 37 mJ and a basis weight of 155 g / m 2 and having a PET: rayon ratio of 50:50 (dry mass ratio) was used as the nonwoven fabric substrate, and a humidifying filter medium was prepared in the same manner as in Example 1 .
(Comparative Example 5)
Except that a spunlaced nonwoven fabric having an inner bonding strength of 245 mJ and a basis weight of 30 g / m 2 and having a PET: rayon ratio of 50:50 (dry mass ratio) was used as the nonwoven fabric substrate, and a humidifying filter medium was prepared in the same manner as in Example 1 .
(Comparative Example 6)
A nonwoven fabric substrate was prepared in the same manner as in Example 1, except that a spunlaced nonwoven fabric having an internal bonding strength of 244 mJ and a basis weight of 156 g / m 2 and PET: rayon = 50: 50 (dry mass ratio) .
(Comparative Example 7)
Except that a spunlaced nonwoven fabric having an internal bonding strength of 427 mJ and a basis weight of 29 g / m 2 and having a PET: rayon ratio of 50:50 (dry mass ratio) was used as the nonwoven fabric base material, and a humidifying filter medium was prepared in the same manner as in Example 1 .
(Comparative Example 8)
A nonwoven fabric substrate was prepared in the same manner as in Example 1, except that a spunlaced nonwoven fabric having an internal bonding strength of 425 mJ and a basis weight of 98 g / m 2 and PET: rayon = 50: 50 (dry mass ratio) .
(Comparative Example 9)
Except that a spunlaced nonwoven fabric having an internal bonding strength of 428 mJ and a basis weight of 151 g / m 2 and having a PET: rayon ratio of 50:50 (dry mass ratio) was used as the nonwoven fabric substrate, and a humidifying filter medium was prepared in the same manner as in Example 1 .
The humidity filtering media of Examples 1 to 17 and Comparative Examples 1 to 9 were evaluated by the following methods, and the evaluation results are shown in Table 1.
(Evaluation after long term use: change of filter structure (structure))
The evaluation of the change in the filter structure was carried out by molding the humidifying filter material with a pleated-type humidifying filter and visually evaluating the pleated-type humidifying filter after 90 days of operation with a humidifying air purifier. The humidifying filter material was formed by a pleated-type humidifying filter having a width of 224 mm, a height of 120 mm, a depth of 29 mm, and a pitch interval of 3 mm. A humidifying air purifier (manufactured by COWAY, trade name: APM-1010DH) was set in a pleated-on-air humidifying filter and operated. The operation was carried out for 24 hours at a blowing rate of 5.1 m 3 / min and the supply quantity was 3 L / day. The pleated-type humidifying filter after 90 days of operation was taken out, and the structure was evaluated. The evaluation of the structure was carried out in the following four steps, and 1 or less was passed. The evaluation of the structure was carried out by three persons, and the average value was shown.
0: No change in filter structure and good
1: crease occurs in folded portion of pleats, but there is no problem in practical use
2: Crease is creased strongly on folded portion of pleats, and pitch is trying to collapse
3: crease on crease of pleat, crease of pitch is not suitable for use
(Evaluation after long-term use: generation of scale)
The evaluation of the scale occurrence was made by molding the humidifying filter material with a pleated-type humidifier filter and confirming the pleated-type humidifying filter after 90 days of operation in the humidifying air purifier. The nonwoven fabric was molded with a pleated-type humidifying filter having a width of 224 mm, a height of 120 mm, a depth of 29 mm, and a pitch of 3 mm. A humidifying air purifier (manufactured by Coway, product name: APM-1010DH) was operated with a pleated moistening filter set. The operation was carried out for 24 hours with the air volume of 5.1 m 3 / min, and the supply water was set at 3 L per day. After 90 days of operation, the humidification filter on the pleats was removed, and the scale generation state of the humidification filter surface (on the windward side) on the pleats was evaluated in the following four stages. Scale generation was evaluated by 10 persons and expressed as an average value thereof.
0: No occurrence of scale, good
1: Scales less than 2 mm in size, but no problem in actual use
2: Large scale of 2 ~ 5 mm occurred
3: Many scales larger than 5 mm are not suitable for use
(Evaluation after prolonged use: odor)
The evaluation of the odor was carried out by forming a humidifying filter medium with a pleated-type humidifying filter and evaluating sensory evaluation of a pleated-type humidifying filter after 90 days of operation with a humidifying air purifier. The humidifying filter material was formed by a pleated-type humidifying filter having a width of 224 mm, a height of 120 mm, a depth of 29 mm, and a pitch interval of 3 mm. A humidifying air purifier (product name: APM-1010DH, manufactured by Coway Co., Ltd.) was set on a pleated-type humidifying filter and operated. The operation was carried out for 24 hours at a blowing rate of 5.1 m 3 / min and the supply quantity was 3 L / day. The pleated-on-wet humidifying filter after 90 days of operation was taken out, and the odor was evaluated. The evaluation of the odor was carried out in the following 6 stages, and 2 or less was passed. The evaluation of the odor was carried out by 10 persons, and the average value was shown.
0: odorless
1: Barely detectable odor
2: You can see what smell is
3: Easily detectable
4: Strong odor
5: intense smell
(Evaluation after long-term use: color discoloration (discoloration) of filter medium)
Evaluation of the discoloration property of the filter medium was carried out by molding the humidifying filter material with a pleated-type humidifying filter and confirming the pleated-type humidifying filter after 90 days of operation with a humidifying air purifier. The nonwoven fabric was formed by a pleated-type humidifying filter having a width of 224 mm, a height of 120 mm, a depth of 29 mm, and a pitch interval of 3 mm. A humidifying air purifier (product name: APM-1010DH, manufactured by Coway Co., Ltd.) was set on a pleated-type humidifying filter and operated. The operation was carried out for 24 hours at a blowing rate of 5.1 m 3 / min, and the supply water was set at 3 L / day. The flit-type humidifying filter after 90 days of operation was taken out, and the degree of discoloration of the surface of the humidification filter on the pleat (wind-receiving side) was evaluated in four steps as follows. The discoloration was evaluated by ten persons, and the average value was shown.
0: No pollution
1: slightly discolored
2: discolored
3: Heavy discoloration
[Table 1]
Carried out in Table 1 from Example 1 to 17, the internal bond strength of that wet filter material containing an antimicrobial polyphenol-based compounds derived from plants to the nonwoven fabric base material is 50 ~ 400 mJ, a basis weight of 40 ~ 150 g / m 2 of the present invention The humidifying filter material has no significant change in the filter structure even after long-term use, and the effect of suppressing scale generation, the odor reducing effect and the discoloration resistance of the filter material are improved, and a clean humidifying filter can be continuously used . It is also understood from Examples 2, 9, 12, 15 and 17 that when the plant-derived antimicrobial polyphenol compound is at least one species selected from the group consisting of apcarment extract, ginkgo biloba extract, tea extract, It can be seen that there is no deformation of the filter structure after long-term use, and scale, odor, discoloration can be suppressed, which is good.
On the other hand, from the comparative example 1, even if the internal bond strength and the basis weight are within the range of the present invention, in a humid filter medium containing no plant-derived antimicrobial polyphenol compound, scale generation and odor generation are significant in long- The discoloration of the filter medium is large, and it can be understood that the humidifying filter can not be kept clean for a long period of time. From the results of Comparative Examples 2-9, it was confirmed that even when the antibacterial polyphenol compounds derived from plants were contained in the humidifying filter media whose internal bonding strength and basis weight were outside the range of the present invention, In addition, it can be seen that scale and odor are generated and discoloration of the filter medium occurs, and the humidifying filter can not be kept clean for a long period of time.
The humidifying filter medium and the humidifying filter of the present invention can be used for a humidifier, an air purifier (humidifying air purifier) equipped with a humidifying function, an air washer, a cold air fan, and the like.
Claims (3)
A nonwoven fabric substrate,
An antibacterial component contained in the nonwoven fabric substrate,
The internal bonding strength of the humidifying filter medium is 50 to 400 mJ, the basis weight is 40 to 150 g / m 2 ,
Wherein the antibacterial component is an antimicrobial polyphenolic compound derived from a plant.
Wherein the plant-derived antimicrobial polyphenol compound is at least one member selected from the group consisting of apical extract, ginkgo leaf extract, tea extract, and coffee bean extract.
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| JPJP-P-2014-195040 | 2014-09-25 | ||
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| US20210254845A1 (en) * | 2020-02-19 | 2021-08-19 | Microjet Technology Co., Ltd. | Miniature gas detection and purification device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105803777B (en) * | 2016-06-02 | 2019-02-12 | 上海东北亚新纺织科技有限公司 | A kind of manufacturing method of anti-biotic material |
| CN108889034A (en) * | 2018-07-27 | 2018-11-27 | 杭州和山科技有限公司 | A kind of water pump sterilized filtering layer and its manufacturing process |
| CN112239917A (en) * | 2019-07-17 | 2021-01-19 | 江西国桥实业有限公司 | High-breathability high-efficiency low-resistance polyester spunbonded hot-rolled non-woven fabric and humidification filter screen material prepared from same |
| CN113908460B (en) * | 2020-07-10 | 2023-04-21 | 研能科技股份有限公司 | Nasal obstruction filter device and nasal obstruction filter device group |
| CN113967327B (en) * | 2020-07-22 | 2023-04-28 | 研能科技股份有限公司 | Nasal obstruction filter device and nasal obstruction filter device group |
| TWI753559B (en) | 2020-08-31 | 2022-01-21 | 研能科技股份有限公司 | Filtration and purification processing method |
| CN114099997B (en) * | 2020-08-31 | 2023-07-28 | 研能科技股份有限公司 | Filtering and purifying treatment method |
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| JP4696567B2 (en) * | 2005-01-21 | 2011-06-08 | パナソニック株式会社 | Hygroscopic filter and humidifier |
| WO2012002296A1 (en) * | 2010-06-29 | 2012-01-05 | 三菱製紙株式会社 | Humidifier filter and humidifier filter laminate body |
| CN102671488A (en) * | 2011-03-12 | 2012-09-19 | 东丽纤维研究所（中国）有限公司 | Air filter and application thereof |
| CN102188855A (en) * | 2011-04-30 | 2011-09-21 | 佛山市顺德区阿波罗环保器材有限公司 | Method for manufacturing theanine filter screen |
| CN103743048A (en) * | 2013-12-23 | 2014-04-23 | 佛山市顺德区阿波罗环保器材有限公司 | Production method for humidification filter for humidifier and structure thereof |
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| US20210254845A1 (en) * | 2020-02-19 | 2021-08-19 | Microjet Technology Co., Ltd. | Miniature gas detection and purification device |
| US12025343B2 (en) * | 2020-02-19 | 2024-07-02 | Microjet Technology Co., Ltd. | Gas detection and purification device |
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| CN105463837A (en) | 2016-04-06 |
| CN105463837B (en) | 2019-12-27 |
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