JPH0754999B2 - Vibration plate for speakers - Google Patents
Vibration plate for speakersInfo
- Publication number
- JPH0754999B2 JPH0754999B2 JP5932087A JP5932087A JPH0754999B2 JP H0754999 B2 JPH0754999 B2 JP H0754999B2 JP 5932087 A JP5932087 A JP 5932087A JP 5932087 A JP5932087 A JP 5932087A JP H0754999 B2 JPH0754999 B2 JP H0754999B2
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- speaker
- natural pulp
- resin
- paper
- 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 - Fee Related
Links
- 239000011347 resin Substances 0.000 claims description 20
- 229920005989 resin Polymers 0.000 claims description 20
- 239000000835 fiber Substances 0.000 claims description 15
- 229920002401 polyacrylamide Polymers 0.000 claims description 10
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 claims description 8
- 239000004952 Polyamide Substances 0.000 claims description 8
- 229920002647 polyamide Polymers 0.000 claims description 8
- 125000002091 cationic group Chemical group 0.000 claims description 7
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 5
- 125000000129 anionic group Chemical group 0.000 claims description 5
- 239000004917 carbon fiber Substances 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 5
- 230000007935 neutral effect Effects 0.000 claims description 4
- 239000012744 reinforcing agent Substances 0.000 claims description 3
- 238000004513 sizing Methods 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims description 3
- 239000012779 reinforcing material Substances 0.000 claims description 2
- 238000005728 strengthening Methods 0.000 claims description 2
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 4
- 150000001450 anions Chemical group 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000004177 elastic tissue Anatomy 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229920001230 polyarylate Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Diaphragms For Electromechanical Transducers (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、各種音響機器に利用されるスピーカ用振動板
に関するものである。Description: TECHNICAL FIELD The present invention relates to a diaphragm for a speaker used in various audio equipment.
従来の技術 一般に、スピーカ用振動板は、天然パルプ繊維を抄造し
て得られるものが使用されていた。又、剛性を向上させ
るために、高弾性繊維、例えば炭素繊維やアルミナ繊維
を、天然パルプ繊維に均一に混合し抄造することによっ
て得られるものが使用されたり、素材をアルミニウム・
チタニウム・ベリリウム・ボロン等の金属やポリプロピ
レン・ポリアリレート・ポリエチレン等の高分子材料等
が使用されていた。2. Description of the Related Art In general, a diaphragm for a speaker has been used which is obtained by making natural pulp fibers into paper. Further, in order to improve the rigidity, a high elastic fiber, for example, a carbon fiber or an alumina fiber, which is obtained by uniformly mixing the natural pulp fiber and paper-making, is used, or the material is aluminum.
Metals such as titanium, beryllium and boron, and polymer materials such as polypropylene, polyarylate and polyethylene were used.
発明が解決しようとする問題点 天然パルプ繊維100％では、面剛性が弱く高域限界再生
帯域が低く、金属材料では素材コストが非常に高価であ
り、深絞り成形が困難であり、高分子材料では、耐熱
性，接着性に劣る。Problems to be Solved by the Invention With 100% natural pulp fiber, the surface rigidity is weak and the high limit regeneration band is low, the material cost is very expensive for metal materials, deep drawing is difficult, and polymer materials Then, it is inferior in heat resistance and adhesiveness.
又、素材・コスト・成形性から見ると、天然パルプ繊維
に強化材を添加、混抄して得られる振動板がもっとも適
したものであるが、天然パルプ繊維自体の物性を上げる
ことと、強化材に適当なるバインダーを得ることが困難
で、振動板としての剛性は充分と言えなかった。本発明
はこの様な問題点を解決出来るスピーカ用振動板を提供
せんとするものである。From the viewpoint of material, cost, and moldability, the diaphragm obtained by adding the reinforcing material to the natural pulp fiber and mixing the paper is the most suitable, but it is necessary to improve the physical properties of the natural pulp fiber itself and However, it was difficult to obtain a suitable binder, and the rigidity of the diaphragm was not sufficient. The present invention is intended to provide a diaphragm for a speaker that can solve such problems.
問題点を解決するための手段 以上の問題点を解決するために本発明は、界面活性剤処
理を施こした強化材を天然パルプ繊維に対して５〜20wt
（％）混抄し、ビータ内で充分撹拌しつつアニオン性の
ポリアクリルアミド樹脂及びカチオン性のポリアミドエ
ピクロルヒドリン樹脂をバインダーとしてそれぞれ天然
パルプ繊維に対して0.5〜2.0wt（％）添加後、中性サイ
ズ剤を天然パルプに対して0.5〜1.0wt（％）添加、混合
抄造してなるスピーカ用振動板である。Means for Solving the Problems In order to solve the above problems, the present invention provides a reinforcing agent treated with a surfactant in an amount of 5 to 20 wt% with respect to natural pulp fibers.
(%) Mixed paper, and while sufficiently stirring in a beater, add 0.5-2.0 wt% of anionic polyacrylamide resin and cationic polyamide epichlorohydrin resin as binders to natural pulp fiber respectively, and then add neutral sizing agent. Is a diaphragm for a speaker, which is made by adding 0.5 to 1.0 wt% of natural pulp to a mixed paper.
作 用 天然パルプ繊維との結合力を強めるため界面活性剤処理
を施こした強化材を混抄し、紙力増強剤のアニオン性ポ
リアクリルアミド樹脂を硫酸アルミニウムにて定着した
後、まだ過剰にあるアニオン部にカチオン性のポリアミ
ドエピクロルヒドリン樹脂を定着する。そして、最後
に、中性サイズを添加する。従って、前者のポリアクリ
ルアミド樹脂がバインダーの役目をして紙力増強を向
上、後者のポリアミドエピクロルヒドリン樹脂は、天然
パルプ繊維の回りに定着、加熱されると熱硬化し剛性の
向上と、寸法安定性に優れ、以上の添加剤を天然パルプ
と混合抄造して得られる振動板は、適度の内部損失と全
体として十分均一な強度を有するものであり、スピーカ
の歪特性を減少、及び高域限界再生周波数帯域を伸ばす
ものとなり好ましい特性を得るものである。The anionic polyacrylamide resin, which is a paper-strengthening agent, is fixed with aluminum sulfate after mixing with a reinforcing agent that has been treated with a surfactant to strengthen the binding force with natural pulp fibers. A cationic polyamide epichlorohydrin resin is fixed to the area. And finally, the neutral size is added. Therefore, the former polyacrylamide resin functions as a binder to improve paper strength, and the latter polyamide epichlorohydrin resin is fixed around natural pulp fibers and heat-cured when heated to improve rigidity and dimensional stability. The diaphragm obtained by mixing the above additives with natural pulp and making paper has a moderate internal loss and a sufficiently uniform strength as a whole, reducing the distortion characteristics of the speaker and reproducing at the high frequency limit. The frequency band is extended and desirable characteristics are obtained.
実施例 以下、本発明の一実施例におけるスピーカ用振動板につ
いて説明する。Example Hereinafter, a speaker diaphragm according to an example of the present invention will be described.
表−１に示す様に、シランカップリング剤を施こした炭
素繊維を、あらかじめビータで叩解度20゜sRにした天然
パルプ繊維に対して10（wt％）加え、ビータ内で十分撹
拌する。As shown in Table 1, 10 (wt%) of carbon fiber to which a silane coupling agent has been applied is added to the natural pulp fiber previously beaten to 20 ° sR with a beater and sufficiently stirred in the beater.
次に、第１図に示すように天然パルプ繊維に対して、ア
ニオン性のポリアクリルアミド樹脂１を1.5（wt％）添
加して十分撹拌後、硫酸アルミニウム２でPH4.0〜PH5.0
に調整、セルロース３に定着させる。Next, as shown in FIG. 1, 1.5 (wt%) of anionic polyacrylamide resin 1 was added to natural pulp fiber, and after sufficiently stirring, PH4.0-PH5.0 with aluminum sulfate 2 was added.
Adjust and fix to Cellulose 3.
次に、アニオン性のポリアクリルアミド樹脂１が定着し
た後、天然パルプ繊維に対して、カチオン性のポリアミ
ドエピクロルヒドリン樹脂４を１（wt％）添加、この時
に、カチオン性のポリアクリルアミド樹脂１は、まだ過
剰にあるアニオン部に定着する。Next, after the anionic polyacrylamide resin 1 is fixed, 1 (wt%) of the cationic polyamide epichlorohydrin resin 4 is added to the natural pulp fiber. At this time, the cationic polyacrylamide resin 1 is still Settles in the excess anion part.
また、その他には、未定着のポリアクリルアミド樹脂1,
ポリアミドエピクロルヒドリン樹脂４イオンコンプレッ
クスの形で定着、また定着しているポリアクリルアミド
樹脂１のアニオン部にカチオン性のポリアミドエピクロ
ルヒドリン樹脂４は吸着される。In addition, unfixed polyacrylamide resin 1,
The polyamide epichlorohydrin resin 4 is fixed in the form of an ion complex, and the cationic polyamide epichlorohydrin resin 4 is adsorbed on the anion portion of the fixed polyacrylamide resin 1.
最後に、耐久性，耐湿性を向上させるため、中性サイズ
剤を対天然パルプ繊維に1.0（wt％）添加する。Lastly, in order to improve durability and moisture resistance, 1.0 (wt%) of neutral sizing agent is added to the natural pulp fiber.
以上から得られた材料を、振動板の形状に抄紙、加熱，
加圧，加工によって本発明のスピーカ用振動板を得る。
添加した炭素繊維及び各樹脂の物性を（表−２）に示
す。The material obtained from the above is made into a shape of a diaphragm, paper-making, heating,
The speaker diaphragm of the present invention is obtained by pressing and processing.
The physical properties of the added carbon fiber and each resin are shown in (Table 2).
本発明の振動板と従来の振動板との物性値の比較を（表
−３）に示す。従来品は（表−１）の炭素繊維を対パル
プに10（wt％）混抄、バインダーにラテックス（SBR）
を３（wt％），ロジンサイズを１（wt％）それぞれパル
プに対して添加する。最後に硫酸アルミニウムでPH4.0
〜5.0に調整定着する。 A comparison of the physical property values of the diaphragm of the present invention and the conventional diaphragm is shown in (Table 3). For the conventional product, the carbon fiber of (Table-1) was mixed with pulp (10% by weight) and the binder was latex (SBR).
3 (wt%) and rosin size 1 (wt%) are added to the pulp. Finally PH4.0 with aluminum sulfate
Adjust to ~ 5.0 and fix.
第２図に本発明と従来品の振動板を用いたスピーカの周
波数特性を示す。従来品に比べ平坦で、高域限界周波数
のより高い音圧周波数特性となっている。 FIG. 2 shows frequency characteristics of the speaker using the diaphragm of the present invention and the conventional diaphragm. It is flat compared to the conventional product and has a higher sound pressure frequency characteristic with a higher high limit frequency.
発明の効果 以上のように本発明の振動板は構成されるため、スピー
カ用振動板に要求される物性値の高い振動板を従来の設
備を用いて簡易に製造でき、高域限界周波数のより高い
平坦な音圧周波数特性を提供することのできる工業的価
値の大なるものである。Effects of the Invention Since the diaphragm of the present invention is configured as described above, it is possible to easily manufacture a diaphragm having a high physical property value required for a speaker diaphragm using conventional equipment, and It is of great industrial value that can provide a high flat sound pressure frequency characteristic.
第１図は本発明の樹脂の定着を示す図、第２図は従来の
振動板と、本発明の振動板を用いたスピーカの音圧周波
数特性図である。 １……ポリアクリルアミド樹脂、２……硫酸アルミニウ
ム、３……セルロース、４……カチオン性のポリアミド
エピクロルヒドリン樹脂。FIG. 1 is a diagram showing fixing of the resin of the present invention, and FIG. 2 is a sound pressure frequency characteristic diagram of a conventional diaphragm and a speaker using the diaphragm of the present invention. 1 ... Polyacrylamide resin, 2 ... Aluminum sulfate, 3 ... Cellulose, 4 ... Cationic polyamide epichlorohydrin resin.
Claims (2)
を施した強化材を５〜20（wt％）、アニオン性のポリア
クリルアミド系樹脂0.5〜2.0（wt％）、カチオン性のポ
リアミドエピクロルヒドリン系樹脂0.5〜1.5（wt％）の
紙力増強剤と中性サイズ剤を0.5〜1.0（wt％）添加、混
合抄造したスピーカ用振動板。1. A natural pulp fiber containing 5 to 20 (wt%) of a reinforcing agent treated with a surfactant, an anionic polyacrylamide resin of 0.5 to 2.0 (wt%), and a cationic polyamide epichlorohydrin. A diaphragm for a speaker in which a paper-strengthening agent of 0.5-1.5 (wt%) resin and a neutral sizing agent are added by 0.5-1.0 (wt%) and mixed.
第１項記載のスピーカ用振動板。2. The speaker diaphragm according to claim 1, wherein carbon fiber is used as the reinforcing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5932087A JPH0754999B2 (en) | 1987-03-13 | 1987-03-13 | Vibration plate for speakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5932087A JPH0754999B2 (en) | 1987-03-13 | 1987-03-13 | Vibration plate for speakers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63224587A JPS63224587A (en) | 1988-09-19 |
| JPH0754999B2 true JPH0754999B2 (en) | 1995-06-07 |
Family
ID=13109949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5932087A Expired - Fee Related JPH0754999B2 (en) | 1987-03-13 | 1987-03-13 | Vibration plate for speakers |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0754999B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05300586A (en) * | 1992-04-20 | 1993-11-12 | Onkyo Corp | Vibration plate for electro-acoustic transducer |
| JP2001298791A (en) * | 2000-04-13 | 2001-10-26 | Sony Corp | Speaker and method of manufacturing the same |
| JP2007005992A (en) * | 2005-06-22 | 2007-01-11 | Matsushita Electric Ind Co Ltd | Speaker diaphragm, speaker using the same, and electronic device and apparatus using the speaker |
-
1987
- 1987-03-13 JP JP5932087A patent/JPH0754999B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63224587A (en) | 1988-09-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |