JP3118866B2 - Speaker diaphragm - Google Patents
Speaker diaphragmInfo
- Publication number
- JP3118866B2 JP3118866B2 JP03111607A JP11160791A JP3118866B2 JP 3118866 B2 JP3118866 B2 JP 3118866B2 JP 03111607 A JP03111607 A JP 03111607A JP 11160791 A JP11160791 A JP 11160791A JP 3118866 B2 JP3118866 B2 JP 3118866B2
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- chitin
- paper pulp
- speaker
- beaten
- 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.)
- Expired - Lifetime
Links
Landscapes
- Paper (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明はスピーカに使用するスピ
ーカ用振動板に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker diaphragm used for a speaker.
【０００２】[0002]
【従来の技術】エビ，カニ等の甲殻類より得られるキチ
ン質と紙パルプよりなるスピーカ用振動板はよく知られ
ている。エビ，カニ等より得られるキチン質よりキトサ
ンを得て、紙パルプ分散液中に一定量添加する。次に液
性をアルカリ性にして、キトサンを沈殿させ、分散液を
抄紙網に落として、振動板形状に抄きあげることによ
り、キチン質と紙パルプよりなる振動板が得られる。こ
のスピーカ用振動板は、振動板中の紙パルプと紙パルプ
をキチン質がバインダーとなって結合させる効果によ
り、従来の紙パルプには得られない特性とスピーカ特性
が得られている。2. Description of the Related Art A speaker diaphragm made of chitin and paper pulp obtained from crustaceans such as shrimp and crab is well known. Chitosan is obtained from chitin obtained from shrimp, crab, and the like, and is added to paper pulp dispersion in a certain amount. Next, the liquid is made alkaline, chitosan is precipitated, the dispersion is dropped on a papermaking net, and is made into a diaphragm shape, whereby a diaphragm composed of chitin and paper pulp is obtained. This speaker diaphragm has characteristics and speaker characteristics that cannot be obtained with conventional paper pulp due to the effect of binding the paper pulp and the paper pulp in the diaphragm with the chitin as a binder.
【０００３】[0003]
【発明が解決しようとする課題】しかし、このようなキ
チン質を紙パルプどうしを結合させるバインダーとして
用いた場合、次のような問題点がある。すなわち、キチ
ン質をあまり多量に振動板に添加できない問題点があ
る。つまり抄紙中に紙パルプ分散液にキトサンという酸
溶液の形で添加し、アルカリ性にして沈殿させるため、
あまり多量に添加すると、ゲル状に沈殿したキチン質の
ために、分散液のろ水性が極端に悪くなり抄紙できなく
なる。よってキチン質の添加量は生産性から考えて数％
程度が限界であった。However, when such a chitin is used as a binder for binding paper pulp, there are the following problems. That is, there is a problem that too much chitin cannot be added to the diaphragm. In other words, it is added to the paper pulp dispersion liquid in the form of an acid solution called chitosan during papermaking and made alkaline to precipitate.
If it is added in a large amount, the dispersion of the dispersion becomes extremely poor due to the chitin precipitated in the form of a gel, and the paper cannot be made. Therefore, the amount of chitin added is several percent in view of productivity.
The extent was marginal.
【０００４】また、スピーカ用振動板を構成する主体の
紙パルプは不変で、バインダーという補助材にキチン質
を用いたので、本質的にスピーカ用振動板の特性を変え
てしまうに到らなかった。Further, the paper pulp constituting the speaker diaphragm is invariable, and chitin is used as an auxiliary material called a binder, so that the characteristics of the speaker diaphragm are essentially not changed. .
【０００５】本発明は以上のような従来の問題点を除去
し、特性の優れたスピーカ用振動板を提供することを目
的とするものである。SUMMARY OF THE INVENTION It is an object of the present invention to eliminate the above-mentioned conventional problems and to provide a speaker diaphragm having excellent characteristics.
【０００６】[0006]
【課題を解決するための手段】このような課題を解決す
るために本発明は、イカの甲を精製して得られるキチン
質を叩解し、フィブリル化したキチン繊維と叩解された
紙パルプよりなる混合パルプを抄紙・加熱成形して振動
板本体を形成し、更にこの振動板本体の外周にエッジを
貼り付けて、スピーカ用振動板を得るものである。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention comprises a chitin material obtained by purifying a squid shell and comprising fibrillated chitin fibers and beaten paper pulp. Vibrating mixed pulp by papermaking and heat molding
Form the plate body, and further add an edge to the outer periphery of the diaphragm body
This is to obtain a speaker diaphragm.
【０００７】[0007]
【作用】イカの甲を精製して得られるキチン質は、キチ
ン質としては唯一、叩解したときにフィブリル化が可能
で、得られたキチン繊維は、羽毛状になっており、紙パ
ルプとの繊維どうしのからみ合いが起こる。このため得
られた振動板は、キチン繊維とパルプ繊維が一体化した
振動板が得られる。[Action] Chitin obtained by purifying the squid shell is the only chitin that can be fibrillated when beaten, and the resulting chitin fibers are feather-like, and can be combined with paper pulp. Entanglement of fibers occurs. For this reason, the obtained diaphragm has a diaphragm in which chitin fibers and pulp fibers are integrated.
【０００８】また繊維状のキチン質であるため、従来の
ようにキチン質が抄紙時のろ水性を極端に阻害すること
はない。[0008] Further, since it is a fibrous chitin, chitin does not extremely inhibit the drainage during papermaking as in the prior art.
【０００９】[0009]
【実施例】以下、本発明の実施例について説明する。Embodiments of the present invention will be described below.
【００１０】イカの甲を精製して得られたキチン質を水
に５wt％の割合で混合してビーターにて約３０分間叩解
した。次にカナディアンフリーネスで６００ccまで叩解
したＮＵＫＰに重量比１０wt％の叩解したキチンパルプ
をビーター中で混合分散した。これに直接梁料ＫＢＬ
（日本化薬（株）製）５％及びサイズ剤ＳＰ９３０（荒
川化学（株）製）１％及び定着剤硫酸ばんど（住友化学
（株）製）を定量添加して、混合パルプを得た。この混
合パルプを水に薄めて３wt％分散した分散液とした。こ
の分散液を定量ずつ抄紙網に落として抄紙振動板を得
た。振動板の断面図を図１，図２に示す。[0010] Chitin obtained by purifying the squid shell was mixed with water at a ratio of 5 wt%, and beaten with a beater for about 30 minutes. Next, beaten chitin pulp having a weight ratio of 10 wt% was mixed and dispersed in a beater with NUKP beaten to 600 cc with Canadian freeness. This is directly the beam charge KBL
A mixed pulp was obtained by adding quantitatively 5% (manufactured by Nippon Kayaku Co., Ltd.), 1% of sizing agent SP930 (manufactured by Arakawa Chemical Co., Ltd.) and a fixing agent, Sulfate Band (manufactured by Sumitomo Chemical Co., Ltd.). . This mixed pulp was diluted with water to obtain a dispersion in which 3% by weight was dispersed. This dispersion was dropped on a papermaking net by a fixed amount to obtain a papermaking diaphragm. FIGS. 1 and 2 are cross-sectional views of the diaphragm.
【００１１】図１，図２において１は紙パルプ、２はキ
チン繊維であり、この紙パルプ１とキチン繊維２を抄造
し加熱成形してコーン状の振動板本体４とし、この振動
板本体４の外周部にエッジ３を貼付けてスピーカ用振動
板としたものである。1 and 2, reference numeral 1 denotes paper pulp and reference numeral 2 denotes chitin fiber. The paper pulp 1 and chitin fiber 2 are formed and heat-molded to form a cone-shaped diaphragm main body 4. The edge 3 is adhered to the outer peripheral portion of a speaker diaphragm.
【００１２】比較例として、キチン繊維を混合しないＮ
ＵＫＰのみの振動板も、同じ抄紙条件で得た。As a comparative example, N containing no chitin fiber was used.
A diaphragm with only UKP was also obtained under the same papermaking conditions.
【００１３】実施例と比較例の振動板を振動板以外は同
じ部品で１６cm口径のスピーカに組立てたときの音圧周
波数特性を図３に示す。実施例のスピーカの方が高域共
振のピークやディップの少ない平坦な特性であることを
示している。FIG. 3 shows sound pressure frequency characteristics when the diaphragms of the embodiment and the comparative example are assembled into a speaker having a diameter of 16 cm using the same components except for the diaphragm. This shows that the loudspeaker of the embodiment has a flat characteristic with less peak and dip of high-frequency resonance.
【００１４】また、実施例と比較例の抄紙速度を比べて
みた。実施例は約８秒でパルプ分散液の水が抄紙網から
排出でき、従来例の約６秒に比べて弱干時間を要した
が、生産性が問題になるほどではなかった。Further, the paper making speeds of the embodiment and the comparative example were compared. In the example, the water of the pulp dispersion liquid was discharged from the paper making net in about 8 seconds, and the drying time was slightly longer than that in the conventional example of about 6 seconds.
【００１５】[0015]
【発明の効果】以上の実施例からも明らかなように本発
明は、キチン質を添加した紙パルプ振動板において、生
産性良く、キチンとパルプが一体化した高い性能の振動
板が得られるものである。As is apparent from the above examples, the present invention provides a paper pulp diaphragm to which chitin is added, which can provide a high-performance diaphragm with high productivity and integrated chitin and pulp. It is.
【図１】本発明の一実施例のスピーカ用振動板の要部の
拡大断面図FIG. 1 is an enlarged sectional view of a main part of a speaker diaphragm according to an embodiment of the present invention.
【図２】同スピーカ用振動板の断面図FIG. 2 is a cross-sectional view of the speaker diaphragm.
【図３】本発明の振動板と従来例の振動板の音圧周波数
特性の比較図FIG. 3 is a comparison diagram of sound pressure frequency characteristics between the diaphragm of the present invention and a conventional diaphragm.
１ 紙パルプ ２ キチン繊維 1 Paper pulp 2 Chitin fiber
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平３−229600（ＪＰ，Ａ) 特開 平３−232400（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) H04R 7/02 D21F 13/10 D21H 13/30 C08B 37/08 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-3-229600 (JP, A) JP-A-3-232400 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) H04R 7/02 D21F 13/10 D21H 13/30 C08B 37/08
Claims (2)
キチン質を叩解し、フィブリル化したキチン繊維と叩解
された紙パルプよりなる混合パルプを抄紙・加熱成形し
て振動板本体を形成し、更にこの振動板本体の外周にエ
ッジを貼り付けて形成したスピーカ用振動板。Claims 1. At least chitin obtained by purifying at least a squid shell is beaten, and a mixed pulp comprising fibrillated chitin fibers and beaten paper pulp is subjected to papermaking and heat molding.
To form a diaphragm main body, and
A speaker diaphragm formed by attaching a ridge.
ーネスで６００ｃｃまで叩解されたものである請求項１The beef is beaten up to 600 cc in the essence.
記載のスピーカ用振動板。The diaphragm for a speaker as described in the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03111607A JP3118866B2 (en) | 1991-05-16 | 1991-05-16 | Speaker diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03111607A JP3118866B2 (en) | 1991-05-16 | 1991-05-16 | Speaker diaphragm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04339496A JPH04339496A (en) | 1992-11-26 |
| JP3118866B2 true JP3118866B2 (en) | 2000-12-18 |
Family
ID=14565631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03111607A Expired - Lifetime JP3118866B2 (en) | 1991-05-16 | 1991-05-16 | Speaker diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3118866B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3570040B2 (en) * | 1995-09-19 | 2004-09-29 | オンキヨー株式会社 | Electroacoustic transducer parts |
| JP2018152740A (en) * | 2017-03-14 | 2018-09-27 | パナソニックＩｐマネジメント株式会社 | Speaker diaphragm and manufacturing method thereof, and a speaker using the same |
| CN112609509B (en) * | 2020-12-08 | 2022-11-01 | 国光电器股份有限公司 | Waterproof air-proof paper cone and preparation method and application thereof |
-
1991
- 1991-05-16 JP JP03111607A patent/JP3118866B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04339496A (en) | 1992-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3055712B2 (en) | Speaker diaphragm | |
| JP2892707B2 (en) | Speaker diaphragm | |
| JP2953743B2 (en) | Acoustic diaphragm and manufacturing method thereof | |
| US8199964B2 (en) | Speaker diaphragm, speaker dust cap, speaker sub-cone, speaker using these components, and electronic apparatus using the same | |
| JP3118866B2 (en) | Speaker diaphragm | |
| JPH06311595A (en) | Diaphragm for electro-acoustic transducer | |
| JPH0410800A (en) | Diaphragm for electroacoustic transducer | |
| WO2007099865A1 (en) | Method for manufacturing component for speaker by papermaking, copmponent for speaker by papermaking, vibrating plate for speaker, subcone for speaker, dust cap for speaker, and speaker | |
| JP2018152740A (en) | Speaker diaphragm and manufacturing method thereof, and a speaker using the same | |
| JP3109296B2 (en) | Speaker diaphragm | |
| KR100254886B1 (en) | High quality speaker's diaphragm manufacturing method | |
| JP4278801B2 (en) | Speaker diaphragm | |
| JP3039083B2 (en) | Speaker diaphragm | |
| JP3084925B2 (en) | Method of manufacturing diaphragm for speaker | |
| JP3036198B2 (en) | Speaker diaphragm and manufacturing method thereof | |
| JP3531276B2 (en) | Sound radiation plate | |
| JP3570040B2 (en) | Electroacoustic transducer parts | |
| JPH04213300A (en) | Diaphragm for speaker and manufacture thereof | |
| JP2562218B2 (en) | Speaker diaphragm | |
| JP3048757B2 (en) | Diaphragm for electroacoustic transducer | |
| JP2932625B2 (en) | Manufacturing method of speaker diaphragm | |
| JPH0779496A (en) | Speaker | |
| RU1831772C (en) | Composition for diaphragm | |
| JP3605901B2 (en) | Electroacoustic transducer parts | |
| JPH0614391A (en) | Dust cap for loudspeaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081013 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091013 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091013 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101013 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111013 Year of fee payment: 11 |
|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111013 Year of fee payment: 11 |