JP2012107345A - Method for evaluating water pressure resistance of fabric - Google Patents
Method for evaluating water pressure resistance of fabric Download PDFInfo
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- JP2012107345A JP2012107345A JP2010254859A JP2010254859A JP2012107345A JP 2012107345 A JP2012107345 A JP 2012107345A JP 2010254859 A JP2010254859 A JP 2010254859A JP 2010254859 A JP2010254859 A JP 2010254859A JP 2012107345 A JP2012107345 A JP 2012107345A
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- fabric
- water pressure
- pressure resistance
- water flow
- continuous water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 239000004744 fabric Substances 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000035699 permeability Effects 0.000 claims abstract description 4
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
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- Treatment Of Fiber Materials (AREA)
Abstract
Description
本発明は、布帛の耐水圧を簡易的に評価する方法に関するものである。 The present invention relates to a method for simply evaluating the water pressure resistance of a fabric.
近年、短時間に多量の降雨が観測される突然の集中豪雨が多く確認されるようになった。一方、これまで多くの透湿防水布帛が開発されてきたが、その評価方法は様々で、たとえばＪＩＳ規格Ｌ−１０９２に記載された、雨試験（ブンデスマン法）や高水圧法等がある（例えば、特許文献１、特許文献２参照）。
しかしながら、前者は降雨量では集中豪雨を凌ぐものの、水圧や水滴形状で集中豪雨を十分再現しているとは言いにくい。また、後者は布帛表面に静水圧を負荷するものであり、実際の豪雨内で使用される被服の耐水評価としては相関が得られにくいという問題があった。
In recent years, a lot of sudden torrential rains in which a lot of rainfall is observed in a short time have been confirmed. On the other hand, many moisture permeable waterproof fabrics have been developed, but there are various evaluation methods such as a rain test (Bundesmann method) and a high water pressure method described in JIS standard L-1092. For example, see Patent Document 1 and Patent Document 2).
However, although the former surpasses the torrential rain in terms of rainfall, it is difficult to say that the torrential rain is sufficiently reproduced by the water pressure and the water droplet shape. In the latter case, a hydrostatic pressure is applied to the surface of the fabric, and there is a problem that it is difficult to obtain a correlation for water resistance evaluation of clothes used in actual heavy rain.
本発明は上記の背景に鑑みなされたものであり、その目的は、集中豪雨を想定した布帛の耐水圧を簡易的に評価する方法を提供することにある。 The present invention has been made in view of the above background, and an object of the present invention is to provide a method for simply evaluating the water pressure resistance of a fabric assuming heavy rain.
本発明者は上記の課題を達成するため鋭意検討した結果、連続水流発生装置から発生した連続水流を布帛の表面に噴射することにより、集中豪雨を想定した布帛の耐水圧を簡易的に評価することができることを見出し、さらに鋭意検討を重ねることにより本発明を完成するに至った。 As a result of intensive studies to achieve the above-mentioned problems, the present inventor simply evaluates the water pressure resistance of a fabric assuming concentrated heavy rain by injecting a continuous water flow generated from a continuous water flow generator onto the surface of the fabric. As a result, the present invention has been completed.
かくして、本発明によれば「布帛の耐水圧を評価する方法であって、連続水流発生装置から発生した連続水流を布帛の表面に噴射し、該連続水流の該布帛への透過性を測定することにより布帛の耐水圧を評価することを特徴とする布帛の耐水圧を評価する方法。」が提供される。
その際、前記連続水流の水圧が１００〜１０００ｋＰａの範囲内であることが好ましい。また、前記連続水流の横断面の直径が０．５〜５ｍｍの範囲内であることが好ましい。
Thus, according to the present invention, “a method for evaluating the water pressure resistance of a fabric, in which a continuous water flow generated from a continuous water flow generator is jetted onto the surface of the fabric, and the permeability of the continuous water flow to the fabric is measured. Thus, there is provided a method for evaluating the water pressure resistance of a fabric, wherein the water pressure resistance of the fabric is evaluated.
In that case, it is preferable that the water pressure of the said continuous water flow exists in the range of 100-1000 kPa. Moreover, it is preferable that the diameter of the cross section of the said continuous water flow exists in the range of 0.5-5 mm.
本発明によれば、集中豪雨を想定した布帛の耐水圧を簡易的に評価する方法が得られる。また、かかる方法により、集中豪雨を想定した被服の製造が容易になる。 According to the present invention, it is possible to obtain a method for simply evaluating the water pressure resistance of a fabric assuming heavy rain. In addition, this method facilitates the production of clothing that assumes concentrated heavy rain.
以下、本発明の実施の形態について詳細に説明する。
本発明において、連続水流発生装置から発生した連続水流を布帛の表面に噴射し、該連続水流の該布帛への透過性を測定することにより布帛の耐水圧を評価する。
前記連続水流発生装置としては、例えば、卓上手押噴霧器（クラマタ産業社製）など市販のものや、水道水を用いてノズルから連続水流を発生させてもよい。
Hereinafter, embodiments of the present invention will be described in detail.
In the present invention, the continuous water flow generated from the continuous water flow generator is jetted onto the surface of the fabric, and the water pressure resistance of the fabric is evaluated by measuring the permeability of the continuous water flow to the fabric.
As said continuous water flow generator, you may generate a continuous water flow from a nozzle using commercially available things, such as a desktop hand sprayer (made by Kuramata Sangyo Co., Ltd.), and tap water, for example.
ここで、本発明でいう連続水流とは１秒以上（好ましくは１秒以上１時間以内）連続する水流のことである。１秒未満の間欠水流では、集中豪雨を想定した布帛の耐水圧評価にならないおそれがあり、好ましくない。 Here, the continuous water flow referred to in the present invention is a continuous water flow of 1 second or more (preferably 1 second or more and 1 hour or less). An intermittent water flow of less than 1 second is not preferable because there is a possibility that the water pressure resistance of the fabric assuming concentrated heavy rain may not be evaluated.
また、前記連続水流の水圧としては１００〜１０００ｋＰａ（１〜１０ｋｇｆ／ｃｍ２）の範囲内であることが好ましい。該水圧が１００ｋＰａよりも小さいと、水圧が低すぎて集中豪雨を想定した布帛の耐水圧評価にならないおそれがある。逆に、該水圧が１０００ｋＰａより大きくても、水圧が大きすぎて集中豪雨を想定した布帛の耐水圧評価にならないおそれがある。
また、前記連続水流の横断面の直径としては、集中豪雨の雨滴を想定して０．５〜５ｍｍの範囲内であることが好ましい。
The water pressure of the continuous water flow is preferably in the range of 100 to 1000 kPa (1 to 10 kgf / cm 2 ). If the water pressure is less than 100 kPa, the water pressure is too low, and there is a possibility that the water pressure resistance of the fabric assuming concentrated heavy rain may not be evaluated. On the other hand, even if the water pressure is higher than 1000 kPa, the water pressure may be too high to evaluate the water pressure resistance of the fabric assuming concentrated heavy rain.
Moreover, it is preferable that the diameter of the cross section of the continuous water flow is within a range of 0.5 to 5 mm assuming raindrops of concentrated heavy rain.
本発明において用いる装置としては、図１に模式的に示すように、連続水流発生装置１と噴射ノズル４とを送水チューブ２により接続したものが好ましい。
ここで、送水チューブを分岐し、複数（好ましくは２〜４個）のノズルに接続すると、複数の布帛を同時に評価することができ好ましい。
As a device used in the present invention, a device in which a continuous water flow generator 1 and an injection nozzle 4 are connected by a
Here, it is preferable that the water supply tube is branched and connected to a plurality of (preferably 2 to 4) nozzles because a plurality of fabrics can be simultaneously evaluated.
なお、図１は、噴射ノズル４の個数が２個の場合を示したものであるが、噴射ノズル４の個数は、同時に評価する布帛の枚数に応じて選定すればよく、本発明において、噴射ノズルの個数が２個に限定されないことはいうまでもない。
布帛は試料枠５に取り付けられる（図１では布帛を図示せず。）。その際、布帛を試料枠５に取り付ける方法としては、両面テープや接着剤などにより貼り付けてもよいし、クランプなどを用いて物理的な方法により取り付けてもよい。
FIG. 1 shows the case where the number of injection nozzles 4 is two, but the number of injection nozzles 4 may be selected according to the number of fabrics to be evaluated simultaneously. Needless to say, the number of nozzles is not limited to two.
The fabric is attached to the sample frame 5 (the fabric is not shown in FIG. 1). At that time, as a method of attaching the fabric to the sample frame 5, it may be attached by a double-sided tape or an adhesive, or may be attached by a physical method using a clamp or the like.
本発明の方法において、連続水流発生装置から発生した連続水流を布帛の表面に噴射させ、連続水流が布帛を透過するかどうか（漏水性）を目視により測定してもよいし、布帛の上に感湿紙や感湿センサーなどを取り付けてこれらを用いて漏水性を測定してもよい。さらには、ビデオなどを用いて撮影し画像解析することによりミストの漏水性を測定してもよい。 In the method of the present invention, the continuous water flow generated from the continuous water flow generator may be sprayed onto the surface of the fabric, and whether or not the continuous water flow permeates the fabric (water leakage) may be measured visually or on the fabric. A water sensitive paper or a moisture sensor may be attached and water leakage measured using these. Furthermore, the water leakage of the mist may be measured by taking a picture using video or the like and analyzing the image.
また、本発明の方法によれば、従来の静水圧法にくらべて、噴射水を用いているので集中豪雨を想定した布帛の耐水圧を簡易的に評価することができる。特に、噴射ノズル４の布帛に対する噴射角度を適宜設定（自動コントロールしてもよい。）すると、衣服に対して垂直ではなく、さまざまな角度を有しながらあたる集中豪雨を、より忠実に再現することができる。そして、かかる方法により、集中豪雨を想定した被服の製造が容易になる。 In addition, according to the method of the present invention, compared to the conventional hydrostatic pressure method, since water is used, it is possible to easily evaluate the water pressure resistance of the fabric assuming heavy rain. In particular, when the spray angle of the spray nozzle 4 to the fabric is appropriately set (it may be automatically controlled), it is possible to reproduce the torrential rain that is not perpendicular to the clothes but has various angles, more faithfully. Can do. And by this method, the manufacture of the clothes which assumed the concentrated heavy rain becomes easy.
以下、実施例をあげて本発明を詳細に説明するが、本発明はこれらによって何ら限定されるものではない。 EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated in detail, this invention is not limited at all by these.
［実施例１］
図１に模式的に示すような、装置を作製した。すなわち、まず、厚さ５ｍｍのアクリル板を用いて、巾３０ｃｍ、高さ５０ｃｍ、奥行き２５ｃｍにて躯体部を作製し、躯体上部から奥行き１２．５ｃｍ、高さ２５ｃｍ、巾全面に渡ってカットし、開口部に、同じく厚さ５ｍｍのアクリル板で作製した試料(布帛)止め枠を設置した。また躯体内部の高さ２０ｃｍの位置に水受け用に厚さ５ｍｍアクリル板を設置した。
[Example 1]
An apparatus as schematically shown in FIG. 1 was produced. That is, first, a 5 mm thick acrylic plate is used to produce a housing part with a width of 30 cm, a height of 50 cm, and a depth of 25 cm, and cut from the upper part of the housing to a depth of 12.5 cm, a height of 25 cm, and the entire width. A sample (fabric) retaining frame similarly made of an acrylic plate having a thickness of 5 mm was installed in the opening. In addition, an acrylic plate having a thickness of 5 mm was installed at a position 20 cm high inside the housing for receiving water.
次いで、試料止め枠の中心部に向って、２個の噴射ノズル４（ハギテック社製、ミニフィッティング(P)ＶＰＩ１１６）を躯体部に固定した。また、連続水流発生装置１として最高級卓上手押噴霧器（クラマタ産業社製、容量１０００ｃｃ、使用時圧力３ｋｇｆ／ｃｍ２）を用い、連続水流発生装置１と噴射ノズル４とをシリコンチューブ（ハギテック製）にて接続した。また、噴射は、同時に２試料を評価するため途中で分岐コネクタ（ハギテック社製、ミニフィッティング(P)ＶＰＴ１１６）を使い、２方向へ同時噴射を行えるようにした。
この装置を用い、実際の集中豪雨で評価した布帛を用いて評価したところ、実際の集中豪雨をよく再現するものであった。
Next, two injection nozzles 4 (manufactured by Hagitec Co., Ltd., mini fitting (P) VPI 116) were fixed to the housing part toward the center of the sample stopper frame. Further, as the continuous water flow generator 1, the highest-class tabletop hand sprayer (manufactured by Kuramata Sangyo Co., Ltd., capacity 1000 cc, operating pressure 3 kgf / cm 2 ) is used. ). In addition, in order to evaluate two samples at the same time, a branch connector (Mini fitting (P) VPT116 manufactured by Hagitec Co., Ltd.) was used on the way to enable simultaneous injection in two directions.
When this apparatus was used and evaluated using a fabric evaluated by actual concentrated heavy rain, the actual concentrated heavy rain was well reproduced.
本発明によれば、集中豪雨を想定した布帛の耐水圧を簡易的に評価する方法が得られ、その工業的価値は極めて大である。 According to the present invention, a method for simply evaluating the water pressure resistance of a fabric assuming concentrated heavy rain is obtained, and its industrial value is extremely large.
１：連続水流発生装置
２：送水チューブ
３：躯体部
４：噴射ノズル
５：試料(布帛)止め枠
1: Continuous water flow generator 2: Water supply tube 3: Housing part 4: Spray nozzle 5: Sample (fabric) retaining frame
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| JP2010254859A JP2012107345A (en) | 2010-11-15 | 2010-11-15 | Method for evaluating water pressure resistance of fabric |
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| JP2010254859A JP2012107345A (en) | 2010-11-15 | 2010-11-15 | Method for evaluating water pressure resistance of fabric |
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| Publication Number | Publication Date |
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| JP2012107345A true JP2012107345A (en) | 2012-06-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016180693A (en) * | 2015-03-24 | 2016-10-13 | セーレン株式会社 | Evaluation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016180693A (en) * | 2015-03-24 | 2016-10-13 | セーレン株式会社 | Evaluation device |
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