JP4856365B2 - Dust collection bag for vacuum cleaner - Google Patents
Dust collection bag for vacuum cleaner Download PDFInfo
- Publication number
- JP4856365B2 JP4856365B2 JP2004183970A JP2004183970A JP4856365B2 JP 4856365 B2 JP4856365 B2 JP 4856365B2 JP 2004183970 A JP2004183970 A JP 2004183970A JP 2004183970 A JP2004183970 A JP 2004183970A JP 4856365 B2 JP4856365 B2 JP 4856365B2
- Authority
- JP
- Japan
- Prior art keywords
- fiber layer
- nonwoven fabric
- bag
- melt blown
- dust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000428 dust Substances 0.000 title claims description 48
- 239000000835 fiber Substances 0.000 claims description 94
- 239000004745 nonwoven fabric Substances 0.000 claims description 31
- 239000000155 melt Substances 0.000 claims description 26
- 230000035699 permeability Effects 0.000 claims description 23
- 239000011148 porous material Substances 0.000 claims description 5
- 229920000728 polyester Polymers 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 41
- 238000000034 method Methods 0.000 description 12
- 239000002245 particle Substances 0.000 description 11
- 238000009987 spinning Methods 0.000 description 9
- -1 polyethylene terephthalate Polymers 0.000 description 8
- 239000004743 Polypropylene Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 description 5
- 239000005020 polyethylene terephthalate Substances 0.000 description 5
- 230000009172 bursting Effects 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 239000004750 melt-blown nonwoven Substances 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000004049 embossing Methods 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000010813 municipal solid waste Substances 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 229920001225 polyester resin Polymers 0.000 description 2
- 239000004645 polyester resin Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical compound OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 description 1
- 241000282320 Panthera leo Species 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920002215 polytrimethylene terephthalate Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Filters For Electric Vacuum Cleaners (AREA)
- Nonwoven Fabrics (AREA)
Description
本発明は、破裂強力および形態安定性に優れ、さらに通気性と大気塵埃の捕集性に優れた低コストの掃除機用集塵袋体に関する。 The present invention relates to a dust collecting bag body for a vacuum cleaner that is excellent in bursting strength and shape stability, and further excellent in air permeability and air dust collection.
家庭用電気掃除機や業務用電気掃除機には、ごみ収集後のごみ廃棄処理を容易にするために使い捨ての紙パックフィルターが内装されている。紙パックフィルターは、空気の吸引によって収集されたごみで一杯になると、掃除機から取り外されて焼却または廃棄される。このような紙パックフィルターには、掃除機の吸引力を低下させない良好な通気性と、大気塵埃などの微細なごみを捕集する高集塵性が要求されるが、これらの特性を得るために種々のフィルターが提案されている。
例えば、特許文献１には、古紙と合成繊維からなる湿式不織布を利用した掃除機フイルターが提案されている。しかし、このフィルタは、通気性と集塵率のバランスが充分でないなどの問題があった。また特許文献２には、湿式不織布とメルトブロー不織布とを積層一体化した掃除機フィルタが提案されている。しかし、このフィルタでは微細なごみを捕集する集塵率は向上するが、通気性が低下するなどの問題があった。さらに特許文献３〜７には、エレクトレットメルトブロー不織布と強度と曲げ剛性に優れた不織布とを積層一体化した低圧力損失で高捕集性の掃除機フィルタが提案されている。しかし、この場合も微細なごみを捕集する集塵率は向上するが、通気性が低下し、さらにメルトブロー不織布にエレクトレット化するための加工処理を施す必要があり、コストが高く経済性の面で問題があった。
For example, Patent Document 1 proposes a vacuum cleaner filter using a wet nonwoven fabric made of waste paper and synthetic fibers. However, this filter has problems such as insufficient balance between air permeability and dust collection rate. Patent Document 2 proposes a vacuum cleaner filter in which a wet nonwoven fabric and a melt blown nonwoven fabric are laminated and integrated. However, this filter improves the dust collection rate for collecting fine dust, but has problems such as a decrease in air permeability. Further, Patent Documents 3 to 7 propose a vacuum cleaner filter having a low pressure loss and a high collection property, in which an electret meltblown nonwoven fabric and a nonwoven fabric excellent in strength and bending rigidity are laminated and integrated. However, in this case as well, the dust collection rate for collecting fine dust is improved, but the air permeability is lowered, and further, it is necessary to perform processing for electretizing the melt blown nonwoven fabric, which is costly and economical. There was a problem.
本発明の課題は、上記の従来技術の問題点を解決し、高い集塵効率と高い通気性を維持し、圧力損失が少なく、良好なフィルタ性能を備えた低コストの掃除機用集塵袋体を提供することにある。 The object of the present invention is to solve the above-mentioned problems of the prior art, maintain high dust collection efficiency and high air permeability, reduce pressure loss, and provide low-cost dust collection bags for vacuum cleaners with good filter performance. To provide a body.
本発明者らは、上記課題に鑑み、鋭意検討した結果、繊維径の太い合成連続長繊維層と繊維径の微細なメルトブロー微細繊維層とを熱圧着により一体化し、該メルトブロー微細繊維層の目付および全体に占めるメルトブロー微細繊維層の重量割合を少なくすることにより、上記課題を達成できることを見出し、本発明に到達した。
すなわち、本願で特許請求される発明は以下のとおりである。
As a result of intensive studies in view of the above problems, the inventors of the present invention integrated a continuous continuous fiber layer having a large fiber diameter and a melt blown fine fiber layer having a fine fiber diameter by thermocompression bonding, and the basis weight of the melt blown fine fiber layer is Further , the inventors have found that the above-mentioned problems can be achieved by reducing the weight ratio of the melt blown fine fiber layer to the whole, and reached the present invention.
That is, the invention claimed in the present application is as follows.
（１）上下層が平均繊維径１０〜３０μｍの合成連続長繊維層と、中間層が平均繊維径０．５〜７μｍのメルトブロー微細繊維層とを、合成連続長繊維層上に直接メルトブロー微細繊維を堆積させてメルトブロー微細繊維層を形成させて、さらに、部分熱圧着率が３〜３０％の熱圧着により一体化された、構成繊維がポリエステル系繊維からなる積層不織布を備えた袋体であって、前記メルトブロー微細繊維層の目付が１〜１５ｇ／ｍ２であり、該積層不織布に占めるメルトブロー微細繊維層の重量割合が２〜２５％であり、袋体の目付けが４０〜８０ｇ／ｍ ２ であって、かつ前記合成連続長繊維層の表面繊維開口部分がメルトブロー微細繊維の進入により目詰めされ、積層不織布の構成繊維による粗密の密度勾配が形成されていることを特徴とする掃除機用集塵袋体。
（２）前記積層不織布を備えた袋体の平均見かけ密度が０．１〜０．３ｇ／ｃｍ３、剛軟度が５以上、通気性が２０〜１００ｃｃ／ｃｍ2 ／ｓｅｃ、平均孔径が５〜４５μｍ、および２μｍ以上の大気塵埃の捕集効率が６０％以上であることを特徴とする（１）に記載の掃除機用集塵袋体。
(1) A synthetic continuous long fiber layer having an average fiber diameter of 10 to 30 μm in the upper and lower layers and a melt blown fine fiber layer having an average fiber diameter of 0.5 to 7 μm directly on the synthetic continuous long fiber layer. A bag body comprising a laminated nonwoven fabric in which the constituent fibers are made of polyester-based fibers and are integrated by thermocompression bonding with a partial thermocompression rate of 3 to 30%. The basis weight of the melt blown fine fiber layer is 1 to 15 g / m 2 , the weight ratio of the melt blown fine fiber layer in the laminated nonwoven fabric is 2 to 25%, and the basis weight of the bag body is 40 to 80 g / m 2. Further, the surface fiber opening portion of the synthetic continuous long fiber layer is clogged by the entry of the melt blown fine fiber, and a dense density gradient is formed by the constituent fibers of the laminated nonwoven fabric. Vacuum cleaner dust bag to be.
(2) the average apparent density of the bag body having a layered nonwoven fabric is 0.1 to 0.3 g / cm 3, stiffness is 5 or more, air permeability 20~100cc / cm 2 / sec, an average pore diameter The dust collection bag for a vacuum cleaner according to (1), wherein the collection efficiency of atmospheric dust of 5 to 45 μm and 2 μm or more is 60% or more.
本発明によれば、特定のメルトブロー微細繊維層と合成連続長繊維層を熱圧着により一体化した積層不織布が用いられ、かつメルトブロー微細繊維層が薄く、緻密な構造を有しているため、強度に優れ、袋体形状保持性および通気性が良好で、圧力損失が少なく、さらに大気塵埃の捕集性能に優れた掃除機用集塵袋体を低コストで提供することができる。
また上記積層不織布の厚み方向に繊維密度の勾配が形成されているため、比較的間隙の大きい合成連続長繊維層で大きい粒子を捕集し、間隙が小さく緻密なメルトブロー微細繊維層で小さい粒子を捕集できるため、フィルタ寿命を長くすることができる。
According to the present invention, a laminated nonwoven fabric in which a specific meltblown fine fiber layer and a synthetic continuous long fiber layer are integrated by thermocompression bonding is used, and the meltblown fine fiber layer is thin and has a dense structure. It is possible to provide a dust collecting bag body for a vacuum cleaner that is excellent in air bag shape retention and air permeability, has little pressure loss, and has excellent air dust collection performance at low cost.
In addition, since a fiber density gradient is formed in the thickness direction of the laminated nonwoven fabric, large particles are collected by a synthetic continuous long fiber layer having a relatively large gap, and small particles are collected by a fine melt blown fine fiber layer having a small gap. Since it can collect, filter life can be lengthened.
以下に、本発明について詳しく説明する。
本発明の掃除機用集塵袋体には、平均繊維径１０〜３０μｍ、好ましくは１２〜２５μｍの合成連続長繊維層と、平均繊維径０．５〜７μｍ、好ましくは０．７〜５μｍのメルトブロー微細繊維層が熱圧着により一体化された積層不織布が用いられる。
合成連続長繊維層の平均繊維径が１０〜３０μｍの範囲外では連続長繊維のカバリング性、強度、紡糸安定性などが低下する。
またメルトブロー微細繊維層の平均粒子径が０．５μｍ未満ではメルトブロー法の紡糸条件が過酷になり、安定した紡糸ができず、また７μｍを超えると連続長繊維との繊径差が少なくなり、高フィルタ性能やバリア性の発現が得られない。一般的に要求される良好なフィルタ性能やバリア性を考慮するとメルトブローの平均繊維径を５μｍ以下とするのが好ましい。
The present invention is described in detail below.
In the dust bag for vacuum cleaner of the present invention, the synthetic continuous long fiber layer having an average fiber diameter of 10 to 30 μm, preferably 12 to 25 μm, and the average fiber diameter of 0.5 to 7 μm, preferably 0.7 to 5 μm. A laminated nonwoven fabric in which melt blown fine fiber layers are integrated by thermocompression bonding is used.
When the average fiber diameter of the synthetic continuous long fiber layer is outside the range of 10 to 30 μm, the covering properties, strength, spinning stability, etc. of the continuous long fibers are lowered.
Also, if the average particle size of the melt blown fine fiber layer is less than 0.5 μm, the spinning conditions of the melt blow method become severe and stable spinning cannot be performed, and if it exceeds 7 μm, the difference in fine diameter from the continuous long fibers is reduced. The expression of filter performance and barrier properties cannot be obtained. In consideration of generally required good filter performance and barrier properties, it is preferable that the average fiber diameter of the melt blow is 5 μm or less.
本発明に用いられる積層不織布を構成する繊維素材には特に制限はなく、一般的な熱可塑性樹脂が用いられる。例えば、ポリエステル、その共重合体、これらの混合物などのポリエステル系樹脂、例えば、ポリエチレンテレフタレート、ポリブチレンテレフタレート、ポリトリメチレンテレフタレートまたはイソフタル酸やフタル酸等が重合されたものが挙げられる。優れた強力、剛性、フィルタ性等が得られる点からはポリエステル系樹脂が好ましい。また本発明を阻害しない範囲で顔料、酸化チタン、熱安定剤、酸化防止剤等の任意の添加剤が添加されてもよい。 There is no restriction | limiting in particular in the fiber raw material which comprises the laminated nonwoven fabric used for this invention, A general thermoplastic resin is used. Examples thereof include polyester resins such as polyester, copolymers thereof, and mixtures thereof, for example, polyethylene terephthalate, polybutylene terephthalate, polytrimethylene terephthalate, or those obtained by polymerizing isophthalic acid or phthalic acid. A polyester resin is preferable from the viewpoint of obtaining excellent strength, rigidity, filterability, and the like. Moreover, arbitrary additives, such as a pigment, a titanium oxide, a heat stabilizer, antioxidant, may be added in the range which does not inhibit this invention.
合成連続長繊維は公知の方法により紡糸することができるが、延伸による充分な強力が発現できるよう、紡糸速度等を適切に設定するのが好ましい。例えば、紡糸速度３０００ｍ／ｍｉｎ以上、好ましくは３５００ｍ／ｍｉｎ以上で延伸紡糸することが好ましい。
また合成連続長繊維ウェブは、摩擦帯電やコロナ帯電などの糸条を均一に分散させる公知の方法でスパンボンド法により形成することができる。この方法は、未結合状態のウェブを生成しやすく、また経済性の点でも好ましい。合成連続長繊維ウェブは単層でまたは複層重ねて用いてもよい。
メルトブロー微細繊維およびそのウエブも公知の方法により得ることができる。該メルトブロー微細繊維ウエブを単層でまたは複層重ねて用いてもよいが、本発明においては、圧力損失が少なく、良好な通気性を確保するために、メルトブロー微細繊維層を均一に低目付化すること、具体的にはメルトブロー微細繊維層の目付を２０ｇ／ｍ2 以下、好ましくは１〜１５ｇ／ｍ2 、より好ましくは２〜１２ｇ／ｍ2 とすることが必要である。メルトブロー微細繊維層の目付が２０ｇ／ｍ2 を超えると、大気塵埃粒子の捕集性能は向上するが、緻密な構成部分が多くなり、通気性が急激に低下し、圧力損失が上昇する。
Synthetic continuous long fibers can be spun by a known method, but it is preferable to appropriately set the spinning speed and the like so that sufficient strength can be achieved by stretching. For example, it is preferable to draw and spin at a spinning speed of 3000 m / min or more, preferably 3500 m / min or more.
In addition, the synthetic continuous long fiber web can be formed by a spunbond method by a known method in which yarns such as triboelectric charging and corona charging are uniformly dispersed. This method is preferable in terms of economy because it is easy to produce an unbonded web. The synthetic continuous long fiber web may be used in a single layer or in multiple layers.
Melt blown fine fibers and their webs can also be obtained by known methods. The melt blown fine fiber web may be used in a single layer or in multiple layers, but in the present invention, the melt blown fine fiber layer is uniformly reduced in weight in order to reduce pressure loss and ensure good air permeability. to it, specifically the basis weight of the meltblown fine fiber layer 20 g / m 2 or less, preferably 1 to 15 g / m 2, more preferably needs to be as 2~12g / m 2. If the basis weight of the melt blown fine fiber layer exceeds 20 g / m 2 , the performance of collecting atmospheric dust particles is improved, but the number of dense components increases, the air permeability decreases rapidly, and the pressure loss increases.
本発明に用いられる積層不織布は、上記合成連続長繊維ウエブとメルトブロー微細繊維ウエブを積層し、これらを熱圧着により一体化して得ることができるが、各ウエブを別々に不織シートとした後、これらを重ね合わせてさらに熱圧着して一体化してもよい。
特に合成連続長繊維ウエブ上に直接メルトブロー微細繊維を堆積させてメルトブロー微細繊維層を形成させることにより、合成連続長繊維層の表面繊維開口部に微細繊維を折り重なるように進入させ、被覆させながら均一に積層することができ、該開口部分での微細繊維による目詰め作用が働くため、通気性を損なうことなく、高い捕集性能を得ることができる。
本発明において、積層不織布に占めるメルトブロー微細繊維層の重量割合は、繊維間隙のカバリング性の点から１〜３０％であることが必要であり、好ましくは２〜２５％である。
The laminated nonwoven fabric used in the present invention can be obtained by laminating the above synthetic continuous long fiber web and the melt blown fine fiber web, and integrating them by thermocompression, but after making each web separately a nonwoven sheet, These may be overlapped and further thermocompression bonded and integrated.
In particular, the melt blown fine fiber is deposited directly on the synthetic continuous long fiber web to form the melt blown fine fiber layer, so that the fine fiber can be folded into the surface fiber openings of the synthetic continuous long fiber layer and uniformly coated. Since the clogging action by the fine fibers in the opening portion works, high collection performance can be obtained without impairing air permeability.
In the present invention, the weight proportion of the melt blown fine fiber layer in the laminated nonwoven fabric needs to be 1 to 30%, preferably 2 to 25%, from the viewpoint of the covering property of the fiber gap.
熱圧着は、得られる積層不織布の強度、剛性、摩擦毛羽強度の点から部分熱圧着するのが好ましい。不織布の表面積に対する部分熱圧着率は３〜３０％が好ましく、より好ましくは５〜２５％である。部分熱圧着率が３％未満では、積層不織布の強力が低下して破れやすくなり、また３０％を超えると、熱圧着部分が多くなり、通気性が低下する場合がある。熱圧着は、例えば、積層する不織布を重ね合わせ、加熱した凹凸の金属エンボスロールと金属フラットロールの間を通過させることにより行うことができる。熱圧着条件は、合成連続長繊維素材（熱可塑性樹脂）の融点より１５〜８０℃低い温度とし、線圧を１００〜１０００Ｎ／ｃｍの範囲で選択するのが好ましい。熱圧着時の線圧や温度が低いと各繊維層の接合が弱くなり、層間剥離が生じ易く、摩擦毛羽強さが低下する。従って、取り扱い性などから、摩擦毛羽強さが３級以上となるように熱圧着条件を選定するのが好ましい。 The thermocompression bonding is preferably partial thermocompression bonding from the viewpoint of the strength, rigidity, and friction fluff strength of the laminated nonwoven fabric obtained. The partial thermocompression bonding rate with respect to the surface area of the nonwoven fabric is preferably 3 to 30%, more preferably 5 to 25%. When the partial thermocompression bonding rate is less than 3%, the strength of the laminated nonwoven fabric is lowered and easily broken, and when it exceeds 30%, the thermocompression bonding portion increases and air permeability may be deteriorated. Thermocompression bonding can be performed, for example, by laminating laminated non-woven fabrics and passing between heated metal embossing rolls and metal flat rolls. The thermocompression bonding conditions are preferably 15 to 80 ° C. lower than the melting point of the synthetic continuous long fiber material (thermoplastic resin), and the linear pressure is preferably selected in the range of 100 to 1000 N / cm. If the linear pressure or temperature during thermocompression bonding is low, the bonding between the fiber layers becomes weak, delamination tends to occur, and the friction fluff strength decreases. Therefore, it is preferable to select the thermocompression bonding conditions so that the frictional fluff strength is 3 or more from the viewpoint of handling properties.
積層不織布の各層の積層形態は、掃除機の空気吸引方向に対して粗密の密度勾配が形成されるように積層することが好ましい。例えば、比較的繊維が太く、通気性、繊維間隙の大きい合成連続長繊維層（Ｓ）を内層とし、比較的繊維が細く、緻密なメルトブロー微細繊維層（Ｍ）を外層としたＳ／Ｍ積層形態が挙げられる。また、Ｓ／Ｍ／Ｓや、Ｓ／Ｍ／Ｍ／Ｓなどのようにメルトブロー微細繊維層を合成連続長繊維層で挟む構成とすることにより、緻密なメルトブロー微細繊維層の目付をより小さくできるため、大気塵埃の捕集に伴う通気性の低下、圧力損失の上昇を防止することができる。 It is preferable to laminate | stack the lamination | stacking form of each layer of a laminated nonwoven fabric so that a density density gradient with respect to the air suction direction of a cleaner may be formed. For example, S / M lamination with a synthetic continuous long fiber layer (S) having relatively thick fibers, air permeability and large fiber gap as an inner layer, and a relatively thin and dense melt-blown fine fiber layer (M) as an outer layer A form is mentioned. Moreover, by using a structure in which the meltblown fine fiber layer is sandwiched between synthetic continuous long fiber layers such as S / M / S and S / M / M / S, the basis weight of the dense meltblown fine fiber layer can be further reduced. Therefore, it is possible to prevent a decrease in air permeability and an increase in pressure loss accompanying the collection of atmospheric dust.
本発明の掃除機用集塵袋体は、上記積層不織布を用いて袋体とすることにより得られるが、袋体は下記の特性を備えていることが必要である。
すなわち、袋体の目付は、袋体の強度、剛性、集塵性能などの点から、３０〜１００ｇ／ｍ2 、好ましくは４０〜８０ｇ／ｍ2 である。袋体の目付が３０ｇ／ｍ2 未満では、強度が低下し、繊維間隙が大きくなり、捕集効率が低下する。また１００ｇ／ｍ2 を超えると、強度が高く、繊維間隙が小さくなり、捕集効率が高くなるが、通気性が低下して圧力損失が大きくなる。
平均見かけ密度は、集塵捕集性および通気性などのフィルタ性の点から、０．１〜０．３ｇ／ｃｍ3 、好ましくは０．１５〜０．２５ｇ／ｃｍ3 である。
剛軟度は、５以上、好ましくは７以上、より好ましくは９〜１５である。掃除機用集塵袋体は、空気の吸引によりその容積が拡大されるため、容積拡大時の形状保持性とごみ等を捕集できる剛性を有していることが必要となる。剛軟度が５未満では、空気吸引による袋体の広がりや保形性が低下する。
Although the dust bag for vacuum cleaners of this invention is obtained by using the said laminated nonwoven fabric as a bag body, it is required that the bag body is provided with the following characteristic.
That is, the basis weight of the bag body, the strength of the bag body, the rigidity, in view of the dust collection performance, 30 to 100 g / m 2, preferably 40 and 80 g / m 2. When the basis weight of the bag is less than 30 g / m 2 , the strength is lowered, the fiber gap is increased, and the collection efficiency is lowered. On the other hand , if it exceeds 100 g / m 2 , the strength is high, the fiber gap becomes small, and the collection efficiency increases, but the air permeability decreases and the pressure loss increases.
The average apparent density, in terms of filter properties, such as dust collection scavenging and breathable, 0.1 to 0.3 g / cm 3, preferably 0.15~0.25g / cm 3.
The bending resistance is 5 or more, preferably 7 or more, more preferably 9 to 15. Since the volume of the dust bag for a vacuum cleaner is increased by suction of air, it is necessary to have shape retention when the volume is increased and rigidity to collect dust and the like. If the bending resistance is less than 5, the spread of the bag and the shape retention by air suction are reduced.
通気性は、１０ｃｃ／ｃｍ2 ／ｓｅｃ以上、好ましくは２０〜１００ｃｃ／ｃｍ2 ／ｓｅｃである。通気性が１０ｃｃ／ｃｍ2 ／ｓｅｃ未満では、掃除機の通気性が不足し、モーター負荷が大きくなり、ごみの捕集力が低下する。
平均孔径は、集塵捕集性および通気性などのフィルタ特性の点から、５０μｍ以下、好ましくは５〜４５μｍである。
さらに袋体の２μｍ以上の大気塵埃の捕集効率が３０％以上、好ましくは５０％以上、より好ましくは６０％以上である。この捕集効率が３０％未満では、掃除機から空気とともに排出される粒子が多くなり、掃除効果が低下する。
また本発明の袋体の破裂強度は１００ｋＰａ以上が好ましく、より好ましくは１５０ｋＰａ以上である。該破裂強度が１００ｋＰａ未満では、袋体の破れが生じやすくなる。
Breathability, 10cc / cm 2 / sec or more, preferably 20~100cc / cm 2 / sec. When the air permeability is less than 10 cc / cm 2 / sec, the air permeability of the vacuum cleaner is insufficient, the motor load becomes large, and the dust collecting power is reduced.
The average pore diameter is 50 μm or less, preferably 5 to 45 μm, from the viewpoint of filter characteristics such as dust collection and breathability.
Further, the collection efficiency of atmospheric dust of 2 μm or more of the bag body is 30% or more, preferably 50% or more, more preferably 60% or more. When the collection efficiency is less than 30%, particles discharged together with air from the cleaner increase, and the cleaning effect is reduced.
The burst strength of the bag of the present invention is preferably 100 kPa or more, more preferably 150 kPa or more. When the burst strength is less than 100 kPa, the bag body is easily broken.
本発明の掃除機用集塵袋体は、外袋を前記積層不織布で構成し、該外袋の内側に内袋を積層してもよい。この内袋としては紙または他の不織布が用いられるが、該内袋の目付けは１０〜３０ｇ／ｍ2 、通気性が５０ｃｃ／ｃｍ2 ／ｓｅｃ以上であることが好ましい。内袋を空気吸引方向の前流（空気入り口側）に配置することにより、該内袋で粒子の大きいごみを捕集することができるため、後段に配置した外袋表面の目詰まり防止ができ、フィルタ寿命を長くすることができる。
内袋と外袋は、袋体全体が接合されている必要はない。例えば、開口部分または開口部分と端部などを部分的に接合し、他の部分は接合せずに単に重ね合わせ、内袋と外袋の間に空気層を形成させることにより、外装表面の目詰まりを効率よく防止できる。
In the dust bag for a vacuum cleaner of the present invention, the outer bag may be constituted by the laminated nonwoven fabric, and the inner bag may be laminated inside the outer bag. As the inner bag, paper or other non-woven fabric is used, and the inner weight of the inner bag is preferably 10 to 30 g / m 2 and the air permeability is preferably 50 cc / cm 2 / sec or more. By disposing the inner bag in the upstream flow (air inlet side) in the air suction direction, large particles of particles can be collected in the inner bag, so that the outer bag surface disposed in the subsequent stage can be prevented from being clogged. The filter life can be extended.
The inner bag and the outer bag need not be joined together. For example, by partially joining the opening part or the opening part and the end part, and simply superimposing the other parts without joining, and forming an air layer between the inner bag and the outer bag, Clogging can be prevented efficiently.
以下、本発明を実施例により説明するが、本発明はこれらに限られるものではない。なお、例中の各特性は下記の方法により測定した。
１）繊径（μｍ）：拡大写真で繊維の直径を１０個以上測定し、その平均値で示した。
２）目付け（ｇ／ｍ2 ）：ＪＩＳ−Ｌ−１９０６に準じ、縦２０ｃｍ×横２５ｃｍの試料を３ヶ所切り取り、質量を測定し、その平均値を単位面積当たりの質量に換算して求めた。
３）厚み（mm）：ＪＩＳ−Ｌ−１９０６に準じ、荷重１０ｋＰａで、５箇所以上測定し、その平均値で示した。
４）平均みかけ密度（ｇ／ｃｍ3 ）：上記で測定した厚みを目付けで除して（目付／厚み）で求めた。
５）通気性（ｃｃ／ｃｍ2 ／ｓｅｃ）：ＪＩＳ−Ｌ−１９０６、フラジュール法に準じて３ヶ所以上測定し、その平均値で示した。
６）破裂強度（ｋＰａ）：ＪＩＳ−Ｌ−１９０６に準じ、ミューレン型試験機で３ヶ所以上測定し、その平均値で示した。
７）大気塵捕集効率（％）：測定面積７８．５ｃｍ2 （直径１０ｃｍ）、風速５０ｃｍ／ｓｅｃとして、測定機を通過する前後の大気を捕集し、捕集大気中の２μｍ以上の粒子（塵埃）をパーテクルカウンター（リオン製）で測定し、下記式により求めた。
大気塵捕集効率＝［１−（下流粒子数／上流粒子数）］×１００
８）剛軟度（ｃｍ）：ＪＩＳ−１９０６、４１度カンチレバー法に準じて測定し、縦、横の平均値で示した。
９）平均孔径（ｃｍ）：ＪＩＳ−Ｋ−３８３２、バブルポイント法に準じて平均孔径を算出した。この時の試料は直径４０ｍｍの円形とした。
EXAMPLES Hereinafter, although an Example demonstrates this invention, this invention is not limited to these. In addition, each characteristic in an example was measured with the following method.
1) Fine diameter (μm): Ten or more fiber diameters were measured with an enlarged photograph, and the average value was shown.
2) Weight per unit area (g / m 2 ): According to JIS-L-1906, three samples of 20 cm in length × 25 cm in width were cut out, measured for mass, and the average value was calculated by converting to mass per unit area. .
3) Thickness (mm): According to JIS-L-1906, 5 or more locations were measured with a load of 10 kPa, and the average value was shown.
4) Average apparent density (g / cm 3 ): The thickness measured above was divided by basis weight to obtain (weight per unit thickness).
5) Breathability (cc / cm 2 / sec): Measured at three or more locations according to JIS-L-1906 and Frajour method, and indicated by the average value.
6) Burst strength (kPa): According to JIS-L-1906, three or more locations were measured with a Murren type tester, and the average value was shown.
7) Air dust collection efficiency (%): The measurement area is 78.5 cm 2 (diameter 10 cm), the wind speed is 50 cm / sec, the air before and after passing through the measuring device is collected, and particles of 2 μm or more in the collected air (Dust) was measured with a particle counter (manufactured by Lion) and determined by the following formula.
Air dust collection efficiency = [1− (number of downstream particles / number of upstream particles)] × 100
8) Tsuyoshi軟degree (cm): Measured in accordance with JIS-1906,41 ° cantilever method, vertical, shown next to the average value.
9) Mean pore diameter (cm): JIS-K- 3832, and calculates an average pore diameter in accordance with Baburupo Lee cement technique. The sample at this time was circular with a diameter of 40 mm.
［実施例１〜３、比較例１〜３、参考例１］
表１に示す内袋と外袋（積層不織布）を用いて集塵袋体を作製した。なお、内袋と外袋はその周辺部分と吸引口の開口部周囲のみを接合した。
外袋の積層不織布は、上下層に合成連続長繊維ウエブを、中間層にメルトブロー微細繊維ウエブを用いた３層構造とし、コンベア捕集ネット上に順に各ウエブを積層した後、表１に記載の面積率の異なる熱エンボスロールとフラットロール間で、線圧３５０Ｎ／ｃｍの条件で熱圧着し、積層不織布とした。また熱圧着温度は合成連続長繊維の融点より２０℃低い温度とした。
合成連続長繊維ウエブは、ポリエチレンテレフタレート（ＰＥＴ：オルソクロロフェノールを用いた２５℃の溶液粘度ηsp/c ０．７７）またはポリプロピレン（ＰＰ粘度ＭＦＲ５０）を用い、公知のスパンボンド法により所定の紡糸温度（ＰＥＴ：３００℃、ＰＰ：２４０℃）で紡糸し、表１に示す平均繊径、目付の未結合ウェブを捕集ネット上に形成した。
メルトブロー微細繊維ウェブは、ポリエチレンテレフタレート（同上の溶液粘度０．５０）またはポリプロピレン（ＰＰ粘度ＭＦＲ７００）を用い、公知のメルトブロー法により、紡糸温度３００℃、加熱空気は３２０℃で１０００Ｎｍ３／ｈｒで紡糸し、表１に示す平均繊径、目付のウエブを形成した。
[Examples 1-3 , Comparative Examples 1-3, Reference Example 1 ]
A dust bag was produced using the inner bag and outer bag (laminated nonwoven fabric) shown in Table 1. In addition, the inner bag and the outer bag were joined only at the periphery and the periphery of the opening of the suction port.
The laminated non-woven fabric of the outer bag has a three-layer structure in which a synthetic continuous long fiber web is used for the upper and lower layers and a melt blown fine fiber web is used for the intermediate layer. Between the heat embossing roll and the flat roll having different area ratios, thermocompression bonding was performed under the condition of a linear pressure of 350 N / cm to obtain a laminated nonwoven fabric. The thermocompression bonding temperature was 20 ° C. lower than the melting point of the synthetic continuous long fiber.
The synthetic continuous long fiber web uses polyethylene terephthalate (PET: solution viscosity ηsp / c 0.77 at 25 ° C. using orthochlorophenol) or polypropylene (PP viscosity MFR50), and a predetermined spinning temperature by a known spunbond method. Spinning was performed at (PET: 300 ° C., PP: 240 ° C.), and an unbound web having an average fine diameter and a basis weight shown in Table 1 was formed on the collection net.
As the melt blown fine fiber web, polyethylene terephthalate (solution viscosity of 0.50) or polypropylene (PP viscosity MFR700) is used, and spinning is performed at a spinning temperature of 300 ° C. and heated air at 320 ° C. and 1000 Nm 3 / hr by a known melt blowing method. And the average fiber diameter shown in Table 1 and the web of a fabric weight were formed.
また実施例１では、内袋を使用せず、外袋の積層不織布のみの構成とし、実施例２、３、参考例１では、内袋と外袋を重ねて集塵袋体とした。
一方、比較例１および２では、外袋として合成連続長繊維ウェブのみを熱圧着した不織布を用い、比較例３では、メルトブロー微細繊維層３０ｇ／ｍ2 とし、表１に示す条件の集塵袋体とした。
得られた集塵袋体の各特性を調べ、その結果を表１に示したが、実施例２、３、参考例１で得られた集塵袋体は、破裂強度に優れ、通気性も良好であり、かつ、２μｍ以上の大気集塵の捕集効率が５０％以上であり、フィルタ性能に優れたものであった。また、内袋を重ね合わせた実施例２〜３、参考例１では、フィルタ寿命に優れることがわかった。
一方、比較例１および２では、微細繊維が使用されていないため、集塵効率の低いものとなった。また比較例３では、メルトブロー微細繊維層の目付が大きいため、通気性が低下し、圧力損失の大きいものであった。
In Example 1, the inner bag was not used, and only the laminated nonwoven fabric of the outer bag was used. In Examples 2, 3, and Reference Example 1 , the inner bag and the outer bag were overlapped to form a dust bag.
On the other hand, in Comparative Examples 1 and 2, a non-woven fabric obtained by thermocompression bonding only a synthetic continuous long fiber web was used as an outer bag, and in Comparative Example 3, a dust-blown bag having the conditions shown in Table 1 with a melt blown fine fiber layer of 30 g / m 2 was used. The body.
Each characteristic of the obtained dust bag was examined, and the results are shown in Table 1. The dust bags obtained in Examples 2 and 3 and Reference Example 1 are excellent in bursting strength and air permeability. It was good and the collection efficiency of atmospheric dust collection of 2 μm or more was 50% or more, and the filter performance was excellent. Moreover, it turned out that it is excellent in the filter life in Examples 2-3 and the reference example 1 which overlap | superposed the inner bag.
On the other hand, in Comparative Examples 1 and 2, since fine fibers were not used, the dust collection efficiency was low. Further, in Comparative Example 3, since the basis weight of the melt blown fine fiber layer was large, the air permeability was lowered and the pressure loss was large.
［実施例４、参考例２］
実施例１において、外袋の積層不織布の作成時に、剛性連続長繊維ウエブおよびメルトブロー微細繊維ウエブを別々に不織シートとした後、積層し、部分熱圧着して一体化した以外は実施例１と同様にして集塵袋体を作成した。なお、参考例２はメルトブロー微細繊維としてポリプロピレン繊維を、実施例４ではポリエステル繊維を使用した。
得られた集塵袋体の測定を調べ、その結果を表１に示したが、いずれの集塵袋体も、破裂強度に優れ、通気性も良好であり、かつ、2μm以上の大気集塵の捕集効率が５０％以上であり、フイルター性能に優れたものであった。
In Example 1, except that the rigid continuous long fiber web and the melt blown fine fiber web were separately made into a non-woven sheet at the time of making the laminated nonwoven fabric of the outer bag , and then laminated and partially thermocompression bonded and integrated. In the same manner as in No. 1, a dust bag was prepared . In Reference Example 2 , polypropylene fiber was used as the melt blown fine fiber, and in Example 4 , polyester fiber was used.
The results of the measurement of the obtained dust bag were examined and the results are shown in Table 1. All dust bags have excellent bursting strength, good air permeability, and air dust collection of 2 μm or more. The collection efficiency was 50% or more, and the filter performance was excellent.
本発明の掃除機用集塵袋体は、破裂強力および形態安定性に優れ、さらに通気性と大気塵埃の捕集性に優れ、かつ低コストであるため、掃除機の使い捨て紙パックフィルターとして有用である。 The dust bag body for vacuum cleaner of the present invention is useful as a disposable paper pack filter for a vacuum cleaner because it is excellent in bursting strength and form stability, and is excellent in air permeability and air dust collection property and at low cost. It is.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004183970A JP4856365B2 (en) | 2004-06-22 | 2004-06-22 | Dust collection bag for vacuum cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004183970A JP4856365B2 (en) | 2004-06-22 | 2004-06-22 | Dust collection bag for vacuum cleaner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2006006399A JP2006006399A (en) | 2006-01-12 |
| JP4856365B2 true JP4856365B2 (en) | 2012-01-18 |
Family
ID=35774283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004183970A Active JP4856365B2 (en) | 2004-06-22 | 2004-06-22 | Dust collection bag for vacuum cleaner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4856365B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007029734A1 (en) | 2005-09-06 | 2007-03-15 | Kddi Corporation | Data transmitting system and data transmitting method |
| JP5205650B2 (en) * | 2008-05-15 | 2013-06-05 | クラレクラフレックス株式会社 | Laminated body and method for producing the same |
| JP5603575B2 (en) * | 2008-10-21 | 2014-10-08 | 旭化成せんい株式会社 | Laminated nonwoven fabric |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0649125B2 (en) * | 1986-02-10 | 1994-06-29 | 株式会社クラレ | Vacuum cleaner dust bag |
| JPH11332803A (en) * | 1998-05-22 | 1999-12-07 | Azumi Roshi Kk | Dust collecting bag for vacuum cleaner |
| JP2000152900A (en) * | 1998-11-10 | 2000-06-06 | Toray Ind Inc | Dust collecting bag for vacuum cleaner |
| JP2003135333A (en) * | 2001-11-02 | 2003-05-13 | Kuraray Co Ltd | Dust collection bag for vacuum cleaner |
| JP2004105829A (en) * | 2002-09-17 | 2004-04-08 | Kurashiki Seni Kako Kk | Filter for cleaning air |
-
2004
- 2004-06-22 JP JP2004183970A patent/JP4856365B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006006399A (en) | 2006-01-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101674873B (en) | Bag house filters and media | |
| JP6264438B2 (en) | Air filter medium, filter pack, and air filter unit | |
| JP2981533B2 (en) | Molded filter | |
| RU2524901C2 (en) | Vacuum cleaner filter bag | |
| JP4745815B2 (en) | Air filter material for internal combustion engines | |
| US8308833B2 (en) | Nonwoven fabric for filters | |
| US7115151B2 (en) | High efficiency particulate air rated vacuum bag media and an associated method of production | |
| HU224280B1 (en) | Filter, especially for vacuum cleaner bag | |
| KR20010043519A (en) | Vacuum cleaner bag and improved vacuum cleaner bag | |
| JP2010234285A (en) | Filter medium for air filter | |
| JPH1190135A (en) | Pleated filter | |
| JP4923353B2 (en) | Electret filter medium and method for producing the same | |
| US10080474B2 (en) | Vacuum cleaner filter bag | |
| JP4856365B2 (en) | Dust collection bag for vacuum cleaner | |
| DE29924466U1 (en) | Vacuum cleaner bags and improved vacuum cleaner bags | |
| JPH0445813A (en) | Filter unit | |
| JP7248401B2 (en) | depth filter | |
| JP2010082596A (en) | Filter medium for air filter, manufacturing method therefor, and air filter using the same | |
| JP2008013871A (en) | Composite nonwoven fabric for air filter | |
| RU2661469C1 (en) | Bag for vacuum cleaner | |
| JP2008114177A (en) | Nonwoven fabric for air sucking filter | |
| JP3665314B2 (en) | Dust bag for vacuum cleaner | |
| JP2019000793A (en) | Filter medium for dust collector filter | |
| JP2018199253A (en) | Laminate sound absorber containing ultra-fine fiber | |
| JPH01107821A (en) | Dust collecting bag paper for vacuum cleaner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20070613 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20090605 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20090616 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20090813 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20091201 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100128 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100128 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20100629 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100927 |
|
| A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20101006 |
|
| A912 | Re-examination (zenchi) completed and case transferred to appeal board |
Free format text: JAPANESE INTERMEDIATE CODE: A912 Effective date: 20101126 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20110921 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20111028 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20141104 Year of fee payment: 3 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 4856365 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |