JP3167450U - Filter material for ventilation fan - Google Patents
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- JP3167450U JP3167450U JP2011000708U JP2011000708U JP3167450U JP 3167450 U JP3167450 U JP 3167450U JP 2011000708 U JP2011000708 U JP 2011000708U JP 2011000708 U JP2011000708 U JP 2011000708U JP 3167450 U JP3167450 U JP 3167450U
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Abstract
【課題】 難燃剤を用いなくとも、難燃性に優れる換気扇用フィルター材を提供する。【解決手段】 この換気扇用フィルター材１は、芯鞘型複合短繊維を構成繊維とする短繊維不織布からなる。芯鞘型複合短繊維は、鞘部が低融点重合体で芯部が高融点重合体で形成されている。低融点重合体としては低融点ポリエステルが、高融点重合体としては高融点ポリエステルが好適である。芯鞘型複合短繊維中、鞘部は５０質量％以上であるのが好ましい。また、芯鞘型複合短繊維の繊維長は、１０〜１００ｍｍであるのが好ましい。短繊維不織布中に、低融点重合体は３０質量％以上含有されている。また、芯鞘型複合短繊維相互間は絡合されていると共に、低融点重合体の融着によって結合されている。短繊維不織布中には、芯鞘型複合短繊維の他に、異種の短繊維が構成繊維として含有されていてもよい。【選択図】 図１PROBLEM TO BE SOLVED: To provide a filter material for a ventilation fan having excellent flame retardancy without using a flame retardant. SOLUTION: This ventilation fan filter material 1 is made of a short-fiber non-woven fabric having a core-sheath type composite short fiber as a constituent fiber. The core-sheath type composite short fiber has a sheath portion formed of a low melting point polymer and a core portion formed of a high melting point polymer. The low melting point polymer is preferably a low melting point polyester, and the high melting point polymer is preferably a high melting point polyester. In the core-sheath type composite short fiber, the sheath portion is preferably at least 50% by mass. The fiber length of the core-sheath type composite short fiber is preferably 10 to 100 mm. The short-fiber nonwoven fabric contains the low-melting-point polymer in an amount of 30% by mass or more. The core-sheath type composite short fibers are entangled with each other and are bonded by fusion of a low melting point polymer. The short-fiber nonwoven fabric may contain different types of short fibers as constituent fibers in addition to the core-sheath type composite short fibers. [Selection diagram] Fig. 1
Description
本考案は、台所や調理場等で用いられている換気扇の、主として吸気口側に取り付ける換気扇用フィルター材に関するものである。なお、本考案で言う換気扇用フィルター材とは、換気扇に取り付けられるものを意味しており、例えば、レンジフード用フィルター材をも包含するものである。 The present invention relates to a filter material for a ventilation fan that is attached mainly to an intake port side of a ventilation fan used in a kitchen or a kitchen. In addition, the filter material for ventilation fans said by this invention means what is attached to a ventilation fan, For example, the filter material for range hoods is also included.
従来より、換気扇に取り付けられるフィルター材としては、比較的粗目の短繊維不織布が用いられている。短繊維不織布は、ポリエステル短繊維等の合成短繊維よりなるものであるため、炎が近づくと燃えやすく、火災の原因になることがあった。 Conventionally, a relatively coarse short fiber nonwoven fabric has been used as a filter material attached to a ventilation fan. Since the short fiber nonwoven fabric is made of synthetic short fibers such as polyester short fibers, it tends to burn when the flame approaches, causing a fire.
このため、難燃性の短繊維不織布を用いることが行われている。難燃性の短繊維不織布としては、短繊維自体にリン系難燃剤を練り込んだもの（特許文献１）、短繊維相互間を結合するバインダー樹脂中に、難燃性を発揮する金属水酸化物を含有させたもの（特許文献２）が知られている。しかしながら、いずれも難燃剤を用いたものであり、これらの化合物は環境に悪影響を与えるという点で問題視されている。 For this reason, using a flame-retardant short fiber nonwoven fabric is performed. Examples of the flame retardant short fiber nonwoven fabric include those obtained by kneading a phosphorus flame retardant into the short fiber itself (Patent Document 1), and metal hydroxide that exhibits flame retardancy in a binder resin that bonds the short fibers to each other. The thing containing the thing (patent document 2) is known. However, both use flame retardants, and these compounds are regarded as problematic in that they have an adverse effect on the environment.
そこで、本考案の課題は、難燃剤を用いずに、換気扇用フィルター材として使用される短繊維不織布に難燃性を与えることにある。 Then, the subject of this invention is providing flame retardance to the short fiber nonwoven fabric used as a filter material for ventilation fans, without using a flame retardant.
本考案は、上記した課題を解決したものであり、短繊維不織布中に一定量以上の低融点重合体を混入させることにより、短繊維不織布が燃えにくくしたものである。すなわち、本考案は、鞘部が低融点重合体で芯部が高融点重合体で形成されている芯鞘型複合短繊維を構成繊維とし、難燃剤及び難燃性繊維のいずれをも含有しない短繊維不織布よりなる換気扇用フィルター材であって、該短繊維不織布中に該低融点重合体は３０質量％以上含有されており、かつ、該芯鞘型複合短繊維相互間は絡合されていると共に、該低融点重合体の融着によって結合されていることを特徴とする換気扇用フィルター材に関するものである。 This invention solves the above-mentioned subject, and makes a short fiber nonwoven fabric difficult to burn by mixing a low melting point polymer more than a fixed quantity in a short fiber nonwoven fabric. That is, the present invention uses a core-sheath type composite short fiber having a sheath part formed of a low-melting polymer and a core part formed of a high-melting polymer, and does not contain any flame retardant or flame retardant fiber. A filter material for a ventilation fan comprising a short fiber nonwoven fabric, wherein the short fiber nonwoven fabric contains 30% by mass or more of the low melting point polymer, and the core-sheath type composite short fibers are entangled with each other. In addition, the present invention relates to a filter material for a ventilation fan, which is bonded by fusion of the low melting point polymer.
本考案に係る換気扇用フィルター材は、鞘部が低融点重合体で芯部が高融点重合体で形成されている芯鞘型複合短繊維を構成繊維とする短繊維不織布よりなるものである。鞘部を形成している低融点重合体と、芯部を形成している高融点重合体との組み合わせとしては、ポリエチレン／ポリプロピレン、低融点ポリエステル／高融点ポリエステル、ポリオレフィン／高融点ポリエステル等を挙げることができる。また、鞘部と芯部の質量比は、鞘部：芯部＝３０〜７０：７０〜３０程度である。本考案においては、低融点重合体の含有量をなるべく多くするのが好ましいので、鞘部：芯部＝５０以上：５０未満であるのがより好ましい。 The filter material for a ventilation fan according to the present invention is made of a short fiber nonwoven fabric comprising core-sheath type composite short fibers having a sheath part formed of a low-melting polymer and a core part formed of a high-melting polymer. Examples of the combination of the low melting point polymer forming the sheath and the high melting point polymer forming the core include polyethylene / polypropylene, low melting point polyester / high melting point polyester, polyolefin / high melting point polyester, etc. be able to. Moreover, the mass ratio of a sheath part and a core part is a sheath part: core part = about 30-70: 70-30. In the present invention, it is preferable to increase the content of the low-melting polymer as much as possible. Therefore, it is more preferable that the sheath portion: the core portion = 50 or more and less than 50.
本考案で用いる不織布の構成繊維は、短繊維である。短繊維とは、紡績しうる程度の繊維長を持つもののことを意味し、一般的に、１０〜１００ｍｍ程度である。たとえば、連続繊維である長繊維を使用すると、火炎が近づいたとき、繊維軸方向に延焼が生じやすくなるので、好ましくない。 The constituent fiber of the nonwoven fabric used in the present invention is a short fiber. The short fiber means a fiber having a fiber length that can be spun and is generally about 10 to 100 mm. For example, when continuous fibers that are continuous fibers are used, it is not preferable because fire spread tends to occur in the fiber axis direction when the flame approaches.
本考案における短繊維不織布は、構成繊維として芯鞘型複合短繊維１００質量％からなるものであってもよいし、構成繊維として芯鞘型複合短繊維の他に異種の短繊維が混合されていてもよい。異種の短繊維としては、単相のポリオレフィン短繊維やポリエステル短繊維が用いられる。しかしながら、本考案においては、芯鞘型複合短繊維中の低融点重合体が、短繊維不織布全体の質量に対して、３０質量％以上、特に好ましくは３７．５質量％以上含有されている必要がある。低融点重合体が３０質量％未満であると、火炎が近づいたとき、その箇所がドロップアウトしにくく、延焼が生じやすくなるので、好ましくない。また、本考案における短繊維不織布の目付は、３０〜７０ｇ／ｍ2程度である。 The short fiber nonwoven fabric in the present invention may be composed of 100% by mass of the core-sheath type composite short fiber as a constituent fiber, and other kinds of short fibers are mixed as the constituent fiber in addition to the core-sheath type composite short fiber. May be. As the different types of short fibers, single-phase polyolefin short fibers or polyester short fibers are used. However, in the present invention, the low melting point polymer in the core-sheath type composite short fiber needs to be contained in an amount of 30% by mass or more, particularly preferably 37.5% by mass or more based on the mass of the entire short fiber nonwoven fabric. There is. If the low melting point polymer is less than 30% by mass, when the flame approaches, it is difficult to drop out the portion, and it is easy for fire spread to occur. Moreover, the fabric weight of the short fiber nonwoven fabric in this invention is about 30-70 g / m < 2 >.
また、本考案における短繊維不織布は、芯鞘型複合短繊維等の構成繊維相互間が公知の手段で絡合されて、所定の形状を保持している。絡合手段しては、従来公知の水流絡合法やニードルパンチ法等が挙げられる。さらに、絡合手段を採用すると共に、絡合している芯鞘型複合短繊維等の構成繊維相互間は、鞘部を形成している低融点重合体で、融着されている。この融着も、短繊維不織布に所定の形状を保持させるためである。低融点重合体による融着は、低融点重合体が溶融又は軟化する温度で加熱処理することによって行われる。加熱処理としては、従来公知の方法が用いられ、たとえばオーブンを用いる方法、キャンドライヤーを用いる方法又はサクションドラムを用いる方法が挙げられる。 Moreover, the short fiber nonwoven fabric in the present invention maintains a predetermined shape by entanglement between constituent fibers such as a core-sheath type composite short fiber by a known means. Examples of the entanglement means include a conventionally known water entanglement method and a needle punch method. Further, the entanglement means is employed, and the constituent fibers such as the core-sheath type composite short fibers that are entangled with each other are fused with a low melting point polymer forming a sheath part. This fusion is also for keeping the short fiber nonwoven fabric in a predetermined shape. The fusion with the low melting point polymer is performed by heat treatment at a temperature at which the low melting point polymer melts or softens. As the heat treatment, a conventionally known method is used, and examples thereof include a method using an oven, a method using a can dryer, and a method using a suction drum.
本考案に係る短繊維不織布よりなる換気扇用フィルター材は、たとえば、以下のような方法で製造することができる。すなわち、カード法により、芯鞘型複合短繊維を含む構成繊維を開繊し、繊維ウェブを作成する。この繊維ウェブに、水流絡合法又はニードルパンチ法を適用し、構成繊維相互間を絡合させる。水流絡合法としては、従来公知の方法が用いられる。具体的には、孔径０．０５〜０．５ｍｍのオリフィスが０．５〜１．５ｍｍの間隔で列をなして設けられたノズルダイを用い、このオレフィスから水圧３〜４０ＭＰａ（より好ましくは５〜１８ＭＰａ）で水流を噴射し、この水流を繊維ウェブに衝突させるという方法である。また、ニードルパンチ法も従来公知の方法が用いられ、多数の刺付き針で繊維ウェブを何度も突き刺して、構成繊維相互間を絡合させる方法である。その後、低融点重合体が溶融又は軟化する温度で、加熱処理を行えば、本考案に係る短繊維不織布よりなる換気扇用フィルター材を容易に得ることができる。 The filter material for ventilation fans made of the short fiber nonwoven fabric according to the present invention can be manufactured, for example, by the following method. That is, by the card method, the constituent fiber including the core-sheath type composite short fiber is opened to create a fiber web. A hydroentangling method or a needle punching method is applied to the fiber web to entangle the constituent fibers. A conventionally known method is used as the water entanglement method. Specifically, using a nozzle die in which orifices having a hole diameter of 0.05 to 0.5 mm are arranged in rows at intervals of 0.5 to 1.5 mm, the water pressure is 3 to 40 MPa (more preferably 5 to 5 MPa). 18 MPa), and a water flow is jetted and this water flow is made to collide with a fiber web. Also, a conventionally known method is used for the needle punching method, and the fiber web is pierced many times with a large number of needles to entangle the constituent fibers. Then, if it heat-processes at the temperature which a low melting-point polymer fuse | melts or softens, the filter material for ventilation fans which consists of a short fiber nonwoven fabric which concerns on this invention can be obtained easily.
本考案に係る換気扇用フィルター材１は、換気扇（レンジフードを含む）の吸気口に、マグネットや面ファスナー等で取り付けられて使用される。また、換気扇用フィルター枠２の内面に、換気扇用フィルター材１を装着して使用することもできる。
The filter material 1 for a ventilation fan according to the present invention is used by being attached to a suction port of a ventilation fan (including a range hood) with a magnet or a hook-and-loop fastener. Moreover, the filter material 1 for ventilation fans can also be mounted | worn and used for the inner surface of the
本考案に係る換気扇用フィルター材は、構成繊維が長繊維ではなく短繊維よりなる短繊維不織布であるので、火炎が近づいたとき、繊維の軸方向に伝わって火炎が延焼しにくくなる。しかも、本考案に係る換気扇用フィルター材は、低融点重合体を３０質量％以上含有しているので、この低融点重合体が溶融又は軟化して、火炎が近づいた箇所で、容易にドロップアウトする。したがって、火炎による延焼を防止しうるという効果を奏する。 Since the filter material for ventilation fans according to the present invention is a short fiber nonwoven fabric in which the constituent fibers are not short fibers but short fibers, when the flame approaches, the flame is difficult to spread in the axial direction of the fibers. In addition, the filter material for a ventilating fan according to the present invention contains 30% by mass or more of a low melting point polymer, so that the low melting point polymer is melted or softened and easily dropped out at a point where the flame is approaching. To do. Therefore, there is an effect that the spread of fire due to the flame can be prevented.
さらに、本発明に係る換気扇用フィルター材は、ハロゲン系やリン系の難燃剤を用いなくてよいので、環境に悪影響を与えることも少ないという効果をも奏する。 Furthermore, since the filter material for a ventilation fan according to the present invention does not need to use a halogen-based or phosphorus-based flame retardant, it also has an effect of having little adverse effect on the environment.
実施例１
以下の芯鞘型複合短繊維（１）５０質量％、芯鞘型複合短繊維（２）３０質量％及び芯鞘型複合短繊維（３）２０質量％を混合して、カード法で開繊し、目付５０ｇ／ｍ2の繊維ウェブを得た。この繊維ウェブに、水流絡合処理を施した後、１３０℃で加熱処理を施して、短繊維不織布を得た。
［芯鞘型複合短繊維（１）］
鞘部； 融点１１０℃の低融点ポリエステル
芯部； 融点２６４℃の高融点ポリエステル
芯鞘比；芯：鞘＝５０：５０（質量比）
繊度； ４．４デシテックス
繊維長；５１ｍｍ
［芯鞘型複合短繊維（２）］
芯鞘型複合短繊維（１）において、繊度のみを２．２デシテックスを変更したもの。
［芯鞘型複合短繊維（３）］
芯鞘型複合短繊維（１）において、繊度のみを６．６デシテックスを変更したもの。
Example 1
The following core-sheath type composite short fiber (1) 50% by mass, core-sheath type composite short fiber (2) 30% by mass and core-sheath type composite short fiber (3) 20% by mass are mixed and opened by the card method. Thus, a fiber web having a basis weight of 50 g / m 2 was obtained. The fiber web was subjected to a hydroentanglement treatment and then a heat treatment at 130 ° C. to obtain a short fiber nonwoven fabric.
[Core-sheath type composite short fiber (1)]
Low melting point polyester having a melting point of 110 ° C. Core portion; High melting point polyester having a melting point of 264 ° C. Core / sheath ratio; Core: sheath = 50: 50 (mass ratio)
Fineness: 4.4 decitex Fiber length: 51 mm
[Core-sheath type composite short fiber (2)]
In the core-sheath type composite short fiber (1), only the fineness is changed by 2.2 dtex.
[Core-sheath type composite short fiber (3)]
In the core-sheath type composite short fiber (1), only the fineness is changed from 6.6 dtex.
実施例２
実施例１で用いた芯鞘型複合短繊維（１）７５質量％と、以下の単相短繊維（１）２５質量％を混合して、カード法で開繊し、目付３２ｇ／ｍ2の繊維ウェブを得た。この繊維ウェブに、実施例１と同一の方法で処理を施して短繊維不織布を得た。
［単相短繊維（１）］
素材； 融点２６５℃の高融点ポリエステル
繊度； ３．３デシテックス
繊維長；５１ｍｍ
Example 2
75% by mass of the core-sheath type composite short fiber (1) used in Example 1 and 25% by mass of the following single-phase short fiber (1) were mixed and opened by the card method, and the basis weight was 32 g / m 2 . A fiber web was obtained. The fiber web was treated in the same manner as in Example 1 to obtain a short fiber nonwoven fabric.
[Single-phase short fiber (1)]
Material: High melting point polyester with a melting point of 265 ° C. Fineness: 3.3 dtex Fiber length: 51 mm
実施例３
実施例１で用いた芯鞘型複合短繊維（２）１００質量％を、カード法で開繊し、目付４０ｇ／ｍ2の繊維ウェブを得た。この繊維ウェブに、水流絡合処理を施した後、１３０℃で加熱処理を施して、短繊維不織布を得た。
Example 3
100% by mass of the core-sheath type composite short fiber (2) used in Example 1 was opened by a card method to obtain a fiber web having a basis weight of 40 g / m 2 . The fiber web was subjected to hydroentanglement treatment and then heat treatment at 130 ° C. to obtain a short fiber nonwoven fabric.
比較例１
実施例１で用いた芯鞘型複合短繊維（１）５０質量％と、実施例２で用いた単相短繊維（１）５０質量％を混合して、カード法で開繊し、目付３２ｇ／ｍ2の繊維ウェブを得た。この繊維ウェブに、実施例１と同一の方法で処理を施して短繊維不織布を得た。
Comparative Example 1
50% by mass of the core-sheath type composite short fiber (1) used in Example 1 and 50% by mass of the single-phase short fiber (1) used in Example 2 were mixed and opened by the card method, and the basis weight was 32 g. A fiber web of / m 2 was obtained. The fiber web was treated in the same manner as in Example 1 to obtain a short fiber nonwoven fabric.
比較例２
実施例１で用いた芯鞘型複合短繊維（１）２５質量％と、実施例２で用いた単相短繊維（１）７５質量％を混合して、カード法で開繊し、目付３２ｇ／ｍ2の繊維ウェブを得た。この繊維ウェブに、実施例１と同一の方法で処理を施して短繊維不織布を得た。
Comparative Example 2
25% by mass of the core-sheath type composite short fiber (1) used in Example 1 and 75% by mass of the single-phase short fiber (1) used in Example 2 were mixed, opened by the card method, and have a basis weight of 32 g. A fiber web of / m 2 was obtained. The fiber web was treated in the same manner as in Example 1 to obtain a short fiber nonwoven fabric.
比較例３
以下の芯鞘型複合長繊維（１）が集積されてなるスパンボンド不織布（ユニチカ社製「エルベスＴ１００３ＷＤＯ」）を得た。
［芯鞘型複合長繊維（１）］
鞘部； 融点１３０℃のポリエチレン
芯部； 融点２６５℃の高融点ポリエステル
芯鞘比；芯：鞘＝５０：５０（質量比）
繊維長；連続
Comparative Example 3
A spunbonded nonwoven fabric (“Elves T1003WDO” manufactured by Unitika Ltd.) in which the following core-sheath type composite long fibers (1) were accumulated was obtained.
[Core-sheath type composite long fiber (1)]
Sheath; Polyethylene core with a melting point of 130 ° C .; High-melting polyester with a melting point of 265 ° C. Core-sheath ratio; Core: sheath = 50: 50 (mass ratio)
Fiber length; continuous
実施例１〜３及び比較例１〜３に係る方法で得られた各不織布は、以下のようなものである。すなわち、実施例１〜３及び比較例１、２に係る方法で得られた短繊維不織布は、構成繊維である短繊維相互間が水流絡合処理によって絡合しており、かつ、芯鞘型複合短繊維中の低融点ポリエステルの融着によって構成繊維相互間が結合されているものである。また、比較例３に係る長繊維不織布は、構成繊維が短繊維ではなく長繊維（連続繊維）となっているものである。 Each nonwoven fabric obtained by the methods according to Examples 1 to 3 and Comparative Examples 1 to 3 is as follows. That is, the short fiber nonwoven fabrics obtained by the methods according to Examples 1 to 3 and Comparative Examples 1 and 2 are entangled between the short fibers which are constituent fibers by the hydroentanglement process, and the core-sheath type The constituent fibers are bonded to each other by fusion of the low melting point polyester in the composite short fiber. Moreover, the long fiber nonwoven fabric which concerns on the comparative example 3 is not a short fiber but a long fiber (continuous fiber).
実施例１〜３及び比較例１〜３に係る方法で得られた各不織布が、難燃性の換気扇用フィルター材として適しているか否かを検討するため、以下の方法で燃焼性の試験を行ったところ、実施例１〜３に係る方法で得られた短繊維不織布は「合格」の評価であったが、比較例１〜３に係る方法で得られた不織布は「不合格」の評価であった。
［燃焼性］
ＪＩＳ Ｌ １０９１に記載された「繊維製品の燃焼性試験方法」に準拠して、燃焼性の試験を行い、「合格」又は「不合格」の判定を行った。
In order to examine whether each nonwoven fabric obtained by the methods according to Examples 1 to 3 and Comparative Examples 1 to 3 is suitable as a flame retardant filter material for a ventilation fan, a flammability test is performed by the following method. When done, the short fiber nonwoven fabric obtained by the methods according to Examples 1 to 3 was evaluated as “pass”, but the nonwoven fabric obtained by the method according to Comparative Examples 1 to 3 was evaluated as “Fail”. Met.
[Combustion quality]
A flammability test was carried out in accordance with “Fiber product flammability test method” described in JIS L 1091 to determine “pass” or “fail”.
比較例１〜３に係る不織布が「不合格」となった理由は、以下のとおりである。比較例１に係る短繊維不織布は、不織布中の低融点ポリエステルの含有量が２５質量％となっているため、火炎が近づいたときにドロップアウトしにくく、延焼しやすいものであり、燃焼性が「不合格」と判定された。比較例２に係る短繊維不織布も、低融点ポリエステルの含有量が１２．５質量％と少なくなっているので、燃焼性が「不合格」と判定された。比較例３に係る不織布は、長繊維（連続繊維）を構成繊維とするため、火炎が近づいたときに、長繊維の繊維軸方向に沿って延焼しやすく、燃焼性が「不合格」と判定された。 The reason why the nonwoven fabrics according to Comparative Examples 1 to 3 were “failed” is as follows. The short fiber nonwoven fabric according to Comparative Example 1 has a low-melting-point polyester content in the nonwoven fabric of 25% by mass. Therefore, when the flame approaches, it is difficult to drop out and spread easily, and has combustibility. “Fail” was determined. The short fiber nonwoven fabric according to Comparative Example 2 also had a low melting point polyester content of 12.5% by mass, and thus the flammability was determined as “failed”. Since the nonwoven fabric according to Comparative Example 3 uses long fibers (continuous fibers) as constituent fibers, when the flame approaches, it is easy to spread along the fiber axis direction of the long fibers, and the flammability is determined as “fail”. It was done.
１ 換気扇用フィルター材
２ 換気扇用フィルター枠
1 Ventilation
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011000708U JP3167450U (en) | 2011-02-10 | 2011-02-10 | Filter material for ventilation fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011000708U JP3167450U (en) | 2011-02-10 | 2011-02-10 | Filter material for ventilation fan |
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| Publication Number | Publication Date |
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| JP3167450U true JP3167450U (en) | 2011-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2011000708U Expired - Fee Related JP3167450U (en) | 2011-02-10 | 2011-02-10 | Filter material for ventilation fan |
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| JP (1) | JP3167450U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012242722A (en) * | 2011-05-23 | 2012-12-10 | Toyobo Co Ltd | Filter for polymerization toner |
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2011
- 2011-02-10 JP JP2011000708U patent/JP3167450U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012242722A (en) * | 2011-05-23 | 2012-12-10 | Toyobo Co Ltd | Filter for polymerization toner |
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