JPH06346720A - Filter paper for oil filter - Google Patents
Filter paper for oil filterInfo
- Publication number
- JPH06346720A JPH06346720A JP16625793A JP16625793A JPH06346720A JP H06346720 A JPH06346720 A JP H06346720A JP 16625793 A JP16625793 A JP 16625793A JP 16625793 A JP16625793 A JP 16625793A JP H06346720 A JPH06346720 A JP H06346720A
- Authority
- JP
- Japan
- Prior art keywords
- calcium carbonate
- filter paper
- whisker
- filter
- carbon particles
- 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.)
- Granted
Links
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Filtering Materials (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、空隙率を殆ど一定に保
ったまま比表面積を高めることによってエンジンオイル
中に混入する微細なカーボン粒子等を高効率で吸着捕捉
できるオイルフィルター用濾紙に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter paper for an oil filter capable of highly efficiently adsorbing and capturing fine carbon particles and the like mixed in engine oil by increasing the specific surface area while keeping the porosity almost constant. Is.
【０００２】[0002]
【従来の技術】オイルフィルター用濾紙はパルプ等の材
料が主として使用されているが、オイルに混入するカー
ボン粒子等を除去するためにはこれらの材料だけでは不
充分で、チタン酸カリ等の短繊維状の無機物が併用され
ている。これはパルプだけで対応すると、パルプ間の空
隙を変化させてもオイルの通油抵抗とカーボン粒子等の
捕捉率のバランスを充分に調整することが不可能なため
で、短繊維状の無機物を使用することによって、はじめ
て圧力損失が増大せずカーボン粒子等の捕捉率の良い濾
紙が得られるからである。Materials such as pulp are mainly used for filter papers for oil filters, but these materials are not sufficient for removing carbon particles mixed in oil, and short papers such as potassium titanate are used. Fibrous inorganic substances are used together. This is because if only pulp is used, it is impossible to adequately adjust the balance between the oil passage resistance and the capture rate of carbon particles, etc., even if the gap between pulps is changed. This is because the use of the filter paper does not increase the pressure loss for the first time, and a filter paper having a good capture rate of carbon particles and the like can be obtained.
【０００３】従来から主として使用されているチタン酸
カリは非常に高価であり、また発癌性等人体への安全性
についても問題が残されている。このため、従来からこ
れに代わる短繊維状の無機物が渇望されていたが、満足
し得る物性を備えたものは未だ提案されていないのが実
情である。Potassium titanate, which has been mainly used in the past, is very expensive, and there is still a problem in safety such as carcinogenicity to the human body. For this reason, there has been a long-felt demand for an inorganic substance in the form of a short fiber that replaces this, but the fact is that a substance having satisfactory physical properties has not been proposed yet.
【０００４】[0004]
【発明が解決しようとする課題】本発明は以上の課題を
解決するものであって、ウィスカー状炭酸カルシウムを
使用することによって圧力損失が増大せず、チタン酸カ
リ以上にカーボン粒子等の捕捉効率が良好なオイルフィ
ルター用濾紙を提供するものである。DISCLOSURE OF THE INVENTION The present invention is to solve the above problems, in which the pressure loss is not increased by using whisker-like calcium carbonate, and the trapping efficiency of carbon particles and the like is higher than that of potassium titanate. Provides a good filter paper for oil filters.
【０００５】[0005]
【課題を解決するための手段】かかる実情に鑑み、本発
明者らは鋭意研究の結果、基材繊維にウィスカー状炭酸
カルシウムを配合することにより上記課題が達成される
ことを見出し、本発明を完成した。即ち、本発明は濾紙
部分を構成する基材繊維とともにウィスカー状炭酸カル
シウムを含有してなるオイルフィルター用濾紙を内容と
するものである。In view of the above circumstances, the present inventors have made earnest studies, and as a result, have found that the above problems can be achieved by adding whisker-like calcium carbonate to a base fiber, and the present invention has been achieved. completed. That is, the present invention comprises a filter paper for an oil filter, which contains whisker-like calcium carbonate together with the base fiber constituting the filter paper portion.
【０００６】本発明に用いられるウィスカー状炭酸カル
シウム（以下、ウィスカー状炭カルと略記する。）とし
ては、例えば特開平３−８８７１４号、特開平４−３２
１５１５号等に記載の方法で製造されるものを使用すれ
ばよい。ウィスカー状炭カルの表面は、チタン酸カリに
比較して微細な起伏に富んでおり、そのためカーボン粒
子等の吸着性に優れている。例えば、ガラス繊維はパル
プ等の基材繊維と併用すると非常に微細な空隙を有する
濾紙を作ることができる。しかし、このような濾紙を使
用しても、オイル中のカーボン粒子の捕捉効率は非常に
低い。これはガラス繊維の表面が非常に平滑なため表面
積が小さく、カーボン粒子を効果的に捕捉できないため
である。従って、本発明におけるウィスカー状炭カルの
表面状態は、非常に重要な要因である。本発明に用いら
れるウィスカー状炭カルは、長径５〜５０μｍ、短径
０．５〜３．０μｍ、より好ましくは長径８〜３０μ
ｍ、短径０．５〜２μｍのものが用いられる。また、ア
スペクト比は１０以上であることが望ましい。Examples of whisker-like calcium carbonate (hereinafter abbreviated as whisker-like charcoal) used in the present invention are, for example, JP-A-3-88714 and JP-A-4-32.
Those manufactured by the method described in No. 1515 or the like may be used. The surface of the whisker-like charcoal is rich in fine undulations as compared with potassium titanate, and is therefore excellent in adsorption of carbon particles and the like. For example, glass fibers can be used in combination with base fibers such as pulp to make filter paper with very fine voids. However, even if such a filter paper is used, the trapping efficiency of carbon particles in oil is very low. This is because the surface of the glass fiber is so smooth that the surface area is small and the carbon particles cannot be effectively captured. Therefore, the surface condition of the whisker-like charcoal in the present invention is a very important factor. The whisker-like charcoal used in the present invention has a major axis of 5 to 50 μm, a minor axis of 0.5 to 3.0 μm, and more preferably a major axis of 8 to 30 μm.
m, and a minor axis of 0.5 to 2 μm is used. Further, the aspect ratio is preferably 10 or more.
【０００７】[0007]
【作用】本発明によれば、基材繊維間の空隙率に応じた
低部分密度が形成できるとともに、ウィスカー状炭カル
によって微細なカーボン粒子を効果的に捕捉することが
できる。またチタン酸カリは比重が４．２と大きいのに
対してウィスカー状炭カルは２．６５であり、本発明で
は重量でなく容量で効果に起因するため、チタン酸カリ
に比べ半分強の量で同一の表面積を保持することができ
る。According to the present invention, a low partial density corresponding to the porosity between the base fibers can be formed, and fine carbon particles can be effectively captured by the whisker-like carbon. Moreover, the specific gravity of potassium titanate is as large as 4.2, whereas that of whisker-like charcoal is 2.65, and in the present invention, it is due to the effect not by weight but by volume. Can maintain the same surface area.
【０００８】また、当該技術分野で使用されているチタ
ン酸カリは、その形状、成分等から発癌性等の人体への
影響が問題視されているが、本発明に使用するウィスカ
ー状炭カルは成分の９９重量％までがＣａＣＯ3 であ
り、医薬品（胃酸の中和用等）、食品添加物等に広く使
用されているＣａＣＯ3 と全く同一成分である。更に、
形状はチタン酸カリと同様にウィスカー状であるが、こ
のＣａＣＯ3 は水に少量可溶であり（チタン酸カリは不
溶）、また弱酸で分解するため、たとえ気管から吸入し
肺部に混入しても人体の肺胞部は弱酸であるので長く残
留することはなく容易に分解するのである。これらのこ
とを総合的に判断すれば、ウィスカー状炭カルはチタン
酸カリに比べ人体に対しても安全であると考えられる。[0008] Further, potassium titanate used in the technical field has a problem that the shape, components, etc. affect the human body such as carcinogenicity, but the whisker-like charcoal used in the present invention is Up to 99% by weight of the component is CaCO 3 , which is exactly the same as CaCO 3 which is widely used in medicines (for neutralization of gastric acid, etc.) and food additives. Furthermore,
The shape is whisker like potassium titanate, but this CaCO 3 is soluble in water in a small amount (potassium titanate is insoluble) and decomposes with a weak acid, so even if it is inhaled from the trachea and mixed into the lungs. However, since the alveolar part of the human body is a weak acid, it does not remain for a long time and is easily decomposed. Judging from these things comprehensively, it is considered that whisker-like charcoal is safer to human body than potassium titanate.
【０００９】[0009]
【実施例】以下、実施例及び比較例を挙げて本発明を更
に詳細に説明するが、これらは本発明の範囲を限定する
ものではない。The present invention will be described in more detail below with reference to examples and comparative examples, but these do not limit the scope of the present invention.
【００１０】実施例１ パルプを主体とした基材繊維に対して３０重量％のウィ
スカー状炭カルを配合してオイルフィルター用濾紙を作
製した。Example 1 A filter paper for an oil filter was produced by mixing 30% by weight of whisker-like charcoal with a base fiber mainly composed of pulp.
【００１１】比較例１ 実施例１のウィスカー状炭カルの代わりに同一容量にな
るようにチタン酸カリを配合（基材繊維に対して５０重
量％）した以外は全て実施例１と同様にしてオイルフィ
ルター用濾紙を作製した。Comparative Example 1 The same procedure as in Example 1 was carried out except that potassium titanate was blended (50% by weight with respect to the base fiber) so as to have the same volume instead of the whisker-like charcoal of Example 1. A filter paper for an oil filter was produced.
【００１２】実施例１、比較例１で作製した濾紙につい
てカーボン粒子の捕捉率をテストした。得られた結果を
表１に示す。The filter papers produced in Example 1 and Comparative Example 1 were tested for carbon particle capture rate. The results obtained are shown in Table 1.
【００１３】[0013]
【表１】 [Table 1]
【００１４】表１の結果から、本発明のウィスカー状炭
カルを配合した濾紙は、チタン酸カリを配合した濾紙に
比べて少ない重量部で、より効率的にカーボン粒子を捕
捉できることが分かる。尚、この時のオイルの圧力損失
はほぼ同じであった。From the results shown in Table 1, it is understood that the filter paper containing the whisker-like charcoal of the present invention can capture carbon particles more efficiently with a smaller weight part than the filter paper containing potassium titanate. The oil pressure loss at this time was almost the same.
【００１５】[0015]
【発明の効果】叙上のとおり、本発明は安価且つ人体に
安全で、カーボン粒子等の捕捉率の向上したオイルフィ
ルター用濾紙を提供することができる。INDUSTRIAL APPLICABILITY As described above, the present invention can provide a filter paper for an oil filter, which is inexpensive, safe for the human body, and has an improved capture rate of carbon particles and the like.
Claims (1)
ィスカー状炭酸カルシウムを含有してなるオイルフィル
ター用濾紙。1. A filter paper for an oil filter, which comprises whisker-like calcium carbonate together with a base fiber constituting a filter paper portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16625793A JP3581161B2 (en) | 1993-06-10 | 1993-06-10 | Filter paper for oil filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16625793A JP3581161B2 (en) | 1993-06-10 | 1993-06-10 | Filter paper for oil filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06346720A true JPH06346720A (en) | 1994-12-20 |
| JP3581161B2 JP3581161B2 (en) | 2004-10-27 |
Family
ID=15828030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16625793A Expired - Fee Related JP3581161B2 (en) | 1993-06-10 | 1993-06-10 | Filter paper for oil filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3581161B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010179262A (en) * | 2009-02-06 | 2010-08-19 | Alps Manufacturing Co Ltd | Filter |
| US7913858B2 (en) | 2004-08-11 | 2011-03-29 | Fleetguard, Inc. | Acid-neutralizing filter media |
-
1993
- 1993-06-10 JP JP16625793A patent/JP3581161B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7913858B2 (en) | 2004-08-11 | 2011-03-29 | Fleetguard, Inc. | Acid-neutralizing filter media |
| JP2010179262A (en) * | 2009-02-06 | 2010-08-19 | Alps Manufacturing Co Ltd | Filter |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3581161B2 (en) | 2004-10-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1265687B1 (en) | Combined vapour and particulate filter | |
| CA1216836A (en) | Filter paper | |
| ES2079516T3 (en) | PROCEDURE FOR FILTERING BEVERAGES, CHEMICAL LIQUIDS, PHARMACEUTICAL OR SIMILAR. | |
| US2708982A (en) | Filter media | |
| SE460126B (en) | CIGARETTE PAPERS CONTAINING BAST FIBERS WITH EXTREMELY FINE FIBRILLATION AND HIGH MALGRAD | |
| JPH06346720A (en) | Filter paper for oil filter | |
| JP3020007B2 (en) | ▲ filter material for bypass oil filter for internal combustion engine | |
| KR920007852B1 (en) | Organic microfibrilated material for filter | |
| JPS6279822A (en) | Filter paper for air filter | |
| RU2004103070A (en) | BINDER'S COMPOSITION FOR CLEANER COMPOSED BY A ROLLER | |
| JPS63236512A (en) | Air filter filtering medium | |
| JPH1085530A (en) | Filter paper for filter and producing method thereof | |
| SU643573A1 (en) | Fibrous mass for filtering cloth production | |
| JPS6146899A (en) | Total heat exchange element | |
| KR100211911B1 (en) | Active carbon filter paper and method thereof | |
| JPH0798129B2 (en) | Precision filter paper | |
| JP2642376B2 (en) | Filter media | |
| SU835466A1 (en) | Filtering method | |
| JPH01139115A (en) | Engine oil filter | |
| KR20230034963A (en) | flame retardant sheet | |
| JPS6369780A (en) | Manufacture of impregnating agent for carbon material | |
| KR20210017971A (en) | Hybrid filter for fine dust and ultra fine dust filtration | |
| KR20210049596A (en) | Nano fiber and the method for manufacturing the same | |
| JPH0251648B2 (en) | ||
| JP2000093718A5 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20011016 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040521 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20040722 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090730 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090730 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100730 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110730 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110730 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120730 Year of fee payment: 8 |
|
| LAPS | Cancellation because of no payment of annual fees |