KR970068735A - Diaphragm for speaker and manufacturing method thereof - Google Patents

Diaphragm for speaker and manufacturing method thereof Download PDF

Info

Publication number
KR970068735A
KR970068735A KR1019960006123A KR19960006123A KR970068735A KR 970068735 A KR970068735 A KR 970068735A KR 1019960006123 A KR1019960006123 A KR 1019960006123A KR 19960006123 A KR19960006123 A KR 19960006123A KR 970068735 A KR970068735 A KR 970068735A
Authority
KR
South Korea
Prior art keywords
diaphragm
raw material
chitosan
speaker
producing
Prior art date
Application number
KR1019960006123A
Other languages
Korean (ko)
Other versions
KR100187001B1 (en
Inventor
박휘찬
Original Assignee
김충지
엘지포스타 주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 김충지, 엘지포스타 주식회사 filed Critical 김충지
Priority to KR1019960006123A priority Critical patent/KR100187001B1/en
Publication of KR970068735A publication Critical patent/KR970068735A/en
Application granted granted Critical
Publication of KR100187001B1 publication Critical patent/KR100187001B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/025—Diaphragms comprising polymeric materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

본 발명은 갑각류의 껍질에서 주로 추출하는 키틴(chitin)을 탈 아세틸화 하여 얻은 키토산(chito acid)을 제조 원료로 사용하는 스피커용 진동판 및 그 제조 방법에 관한 것으로서, 스피커용 진동판 재료에 적합한 고 탄성율 및 고 내부손실율의 물성을 지닌 키토산을 제조 원료로 사용하여 진동판을 제조함으로서 우수한 음질을 출력하는 스피커를 얻을 수 있는 효과가 있다.The present invention relates to a diaphragm for loudspeaker using chitosan obtained by deacetylation of chitin extracted mainly from the shell of crustacean as a raw material and a method for producing the diaphragm. And a chitosan having physical properties of a high internal loss ratio is used as a raw material for producing a diaphragm, thereby producing a speaker that outputs excellent sound quality.

Description

스피커용 진동판 및 그 제조 방법Diaphragm for speaker and manufacturing method thereof

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제1도는 본 발명에 의한 스피커용 진동판 제조 방법을 나타내는 공정도.FIG. 1 is a process diagram showing a method of manufacturing a diaphragm for a speaker according to the present invention; FIG.

Claims (4)

키토산(chito acid)을 원료로 하여 제조된 것을 특징으로 하는 스피커용 진동판.A diaphragm for a loudspeaker, which is manufactured using chito acid as a raw material. 키틴(chitin)을 탈 아세틸화 하여 생성된 키토산(chito acid) 원료를 회산성 수용액에 용해시켜 졸(sol)화 하는 제1과정과, 겔(gel) 상태의 필름(film) 또는 시트가 되도록 상기 졸을 1차 건조시키는 제2과정과, 상기 필름 또는 상기 시트를 예비 성형하여 2차 건조시키는 제3과정과, 열 프레스로 마무리 성형하여 완전 건조시키는 제4과정과, 불필요한 부분을 절단하는 제5과정으로 이루어지는 것을 특징으로 하는 스피커용 진동판 제조 방법.A first step of dissolving a chitosan raw material produced by deacetylation of chitin in a solution of an acidic solution to form a sol; A third step of preliminarily molding the film or the sheet and drying it secondarily, a fourth step of finishing molding by a hot press to completely dry the film or the sheet, and a fifth step of cutting the unnecessary part, Wherein the step of forming the diaphragm comprises the steps of: 제2항 있어서, 상기 키토산 원료의 탈 아세틸화도는 60 내지 90% 인 것을 특징으로 하는 스피커용 진동판 제조 방법.The method of claim 2, wherein the deacetylation degree of the chitosan raw material is 60 to 90%. 제2항 있어서, 상기 졸은 전체 중량의 90% 이상이 상기 키토산인 것을 특징으로 하는 스피커용 진동판 제조 방법.3. The method according to claim 2, wherein the sol is chitosan in an amount of 90% or more of the total weight. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960006123A 1996-03-08 1996-03-08 Diaphragm for speaker KR100187001B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960006123A KR100187001B1 (en) 1996-03-08 1996-03-08 Diaphragm for speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960006123A KR100187001B1 (en) 1996-03-08 1996-03-08 Diaphragm for speaker

Publications (2)

Publication Number Publication Date
KR970068735A true KR970068735A (en) 1997-10-13
KR100187001B1 KR100187001B1 (en) 1999-05-15

Family

ID=19452665

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960006123A KR100187001B1 (en) 1996-03-08 1996-03-08 Diaphragm for speaker

Country Status (1)

Country Link
KR (1) KR100187001B1 (en)

Also Published As

Publication number Publication date
KR100187001B1 (en) 1999-05-15

Similar Documents

Publication Publication Date Title
DE60007298D1 (en) METHYLCELLULOSE WITH IMPROVED GEL STRENGTH
CA2389393A1 (en) Manufacture of paper and paperboard
ATE268410T1 (en) METHOD FOR PRODUCING PAPER, CARDBOARD AND CARDBOARD WITH HIGH DRY STRENGTH
CA2233368A1 (en) Method for preparing a biodegradable filter material
CA2610353A1 (en) Fibrous structures comprising a polymer structure
KR970068735A (en) Diaphragm for speaker and manufacturing method thereof
DE69903628D1 (en) METHOD FOR PRODUCING PAPER
BR0317093A (en) Load-fiber composite, method for producing the same, and, paper.
WO2002088468A3 (en) Method for production of fibrous moulded bodies
ES2066438T3 (en) PROCEDURE FOR THE MANUFACTURE OF BIODEGRADABLE ECOPHYL MOLDABLE MATERIALS.
ID25782A (en) MIXTURE OF SILICA ACID COLOID IN THE MICROPARTICLE SYSTEM USED IN PAPER MAKING
WO2003000985A8 (en) Manufacture of paper and paper board
KR100187000B1 (en) Diaphragm for speaker
EA200200382A1 (en) METHOD OF OBTAINING FORMED PRODUCTS FROM CELLULOSE
BR0317100A (en) Load-fiber composite, method to produce the same, and paper
RU2223971C1 (en) Cellulose acetate manufacture process
JP2555545B2 (en) Method for producing cellulose / chitosan-based molded product
GB577676A (en) Improvements in or relating to the production of reinforced plastic articles
KR20110043253A (en) Diaphragm for speaker and method for making thereof
TH2001005879A (en) Methods for producing salt cores
JP3124526U (en) Structure of high-frequency speaker vibration film
JP3039083B2 (en) Speaker diaphragm
KR960030815A (en) Licorice processed tofu and its manufacturing method
JP2004088314A (en) Acoustic diaphragm and manufacturing method thereof
KR20010028023A (en) Speaker diaphragm using chitosan fiber as a main material and method for manufacturing the same

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20131101

Year of fee payment: 16

FPAY Annual fee payment

Payment date: 20141210

Year of fee payment: 17

FPAY Annual fee payment

Payment date: 20151204

Year of fee payment: 18

EXPY Expiration of term