KR20010028023A - Speaker diaphragm using chitosan fiber as a main material and method for manufacturing the same - Google Patents

Speaker diaphragm using chitosan fiber as a main material and method for manufacturing the same Download PDF

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Publication number
KR20010028023A
KR20010028023A KR1019990040060A KR19990040060A KR20010028023A KR 20010028023 A KR20010028023 A KR 20010028023A KR 1019990040060 A KR1019990040060 A KR 1019990040060A KR 19990040060 A KR19990040060 A KR 19990040060A KR 20010028023 A KR20010028023 A KR 20010028023A
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South Korea
Prior art keywords
chitosan
diaphragm
stage
speaker
fiber
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KR1019990040060A
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Korean (ko)
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노성택
박휘찬
이신희
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김종수
엘지이노텍 주식회사
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Priority to KR1019990040060A priority Critical patent/KR20010028023A/en
Publication of KR20010028023A publication Critical patent/KR20010028023A/en

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    • 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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • 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
    • H04R2307/029—Diaphragms comprising fibres

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

Abstract

PURPOSE: A speaker oscillating board made of chitosan fibrous timber and a method thereof are provided to supply an oscillating board of the high sound quality with the high resolution by using the high elasticity of chitosan and characteristics of high sound quality as a speaker oscillating board. CONSTITUTION: A speaker oscillating board made of chitosan fibrous timber and a method thereof include a few stages. In the first stage(10) the fiber is detected from chitosan. In the second stage(20) the detected fiber is cut with an appointed length. In the third stage(30) the cut fiber is swelled and it is connected chemically. In the fourth stage(40) the chemically connected material is made as the basic material by using a gold net. In the fifth stage(50) the basic material is set in the mold of the oscillating board form and is pressed in the temperature of 150 degrees. In the sixth stage(60) the molded oscillating board is cut out with an appointed length and the conge is completed by sticking the edge on the molded oscillating board.

Description

키토산 섬유재를 주재로 한 스피커 진동판 및 그 제조방법{SPEAKER DIAPHRAGM USING CHITOSAN FIBER AS A MAIN MATERIAL AND METHOD FOR MANUFACTURING THE SAME}SPEAKER DIAPHRAGM USING CHITOSAN FIBER AS A MAIN MATERIAL AND METHOD FOR MANUFACTURING THE SAME}

본 발명은 키토산 섬유재를 주재로 한 스피커 진동판 및 그 제조방법에 관한 것으로, 특히 키토산의 우수한 음향특성을 그대로 살리기 위하여 게껍질 등에서 추출한 키틴을 탈 아세틸화 하여 키토산을 제작하고 습식방사법에 의한 펄프 및 섬유상으로 제조한 키토산 섬유재를 주재로 한 스피커 진동판 및 그 제조방법에 관한 것이다.The present invention relates to a loudspeaker diaphragm based on chitosan fibrous material and a method of manufacturing the same. In particular, in order to preserve the excellent acoustic properties of chitosan as it is, chitosan extracted from crab shell or the like is produced by chitosan, and pulp by wet spinning. The present invention relates to a loudspeaker diaphragm based on chitosan fibrous material manufactured in fibrous form, and a method of manufacturing the same.

스피커 진동판으로서, 키틴을 이용하여 제조하는 방식이 검토되고 있다. 즉, 키토산 용액을 본체에 코팅하거나, 필름을 제작하여 본체에 부착하는 방식이 알려져 있다. 또한 일부는 다른 방식으로서 키틴질을 섬유상으로 제작하여 물성보강용 복합재 및 바인더와 결합하여 스피커 진동판으로 사용하고 있다.As a speaker diaphragm, the method of manufacturing using chitin is examined. That is, the method of coating a chitosan solution on a main body, or making a film and attaching to a main body is known. In addition, some of the chitin is produced in a fibrous form as another method, and used as a speaker diaphragm in combination with a material reinforcing composite and a binder.

그러나 상기 종래의 스피커 진동판에 있어서는, 다음과 같은 문제점이 있었다.However, the conventional speaker diaphragm has the following problems.

첫째, 키토산을 용해시킨 용액으로부터 진동판을 만들고자 할 경우에는 키토산을 산성용액에 용해시켜 용제를 증발시켜 진동판을 성형하기 때문에 가공성이 나빠 실제 생산 적용에는 무리가 있다.First, in the case of making a diaphragm from a solution in which chitosan is dissolved, it is difficult to apply the actual production due to poor workability because the chitosan is dissolved in an acid solution to evaporate the solvent to form a diaphragm.

둘째, 펄프에 키틴 및 키토산을 일부 혼합 또는 표면에 코팅하여 진동판을 제작할 경우에는 대부분의 물성 및 특성이 주재료인 펄프에 의해 지배받으므로 키틴, 키토산의 특성을 살리기 어렵다.Second, in the case of manufacturing a diaphragm by mixing or coating a portion of chitin and chitosan on the pulp, it is difficult to make use of chitin and chitosan because most of the physical properties and properties are controlled by the main material pulp.

셋째, 섬유상의 키틴을 표면 탈 아세틸화시켜 표면을 키토산화하여 이를 초조(抄造)하고 바인더 공정 등이 필수적이어서, 분자격자 구조상 가공성이 우수한 β-키틴으로 할 수 있으나, 키틴질 섬유간 결합력이 약하여 키틴질 섬유만으로는 스피커 진동판에 요구되는 강성이나 물성을 얻을 수 없기 때문에, 섬유간 결합제의 기능을 지닌 바인더에 의존할 수밖에 없으므로 키틴질 섬유가 지닌 고유의 음향특성을 충분히 살리지 못하는 단점이 있었다.Third, the surface deacetylation of the fibrous chitin to chitooxidize the surface to make it anxiety, and the binder process is essential, it can be made β-chitin excellent in the processability of the molecular lattice structure, but chitin due to the weak bond between chitin fibers Since the fiber alone cannot obtain the stiffness and physical properties required for the speaker diaphragm, it is inevitable to rely on the binder having the function of the inter-fiber binder, so that the inherent acoustic properties of the chitin fibers cannot be sufficiently utilized.

이에, 본 발명은 상기 문제점을 해결하기 위하여 발명된 것으로, 그 목적으로 하는 바는, 스피커 진동판의 우수한 음향특성을 그대로 살리기 위하여 게껍질 등에서 추출한 키틴을 탈 아세틸화하여 키토산을 얻고 이것을 습식방사법에 의한 펄프 및 섬유상으로 제조함으로써 키토산을 섬유간의 결합만으로 충분한 강도를 가지게 하는, 키토산 섬유재를 주재로 한 스피커 진동판 및 그 제조방법을 제공함에 있다.Accordingly, the present invention has been invented to solve the above problems, and its object is to deacetylate chitin extracted from crab shell or the like to obtain chitosan in order to maintain the excellent acoustic characteristics of the speaker diaphragm as it is, and by wet spinning The present invention provides a loudspeaker diaphragm based on chitosan fibrous material and a method for manufacturing the chitosan fibrous material.

도 1은 본 발명에 의한 스피커 진동판의 제조 공정을 나타낸 공정도1 is a process chart showing the manufacturing process of the speaker diaphragm according to the present invention

상기 목적을 달성하기 위한 본 발명의 키토산 섬유재를 주재로 한 스피커 진동판은, 키틴을 95% 이상 탈 아세틸화하여 키토산 섬유원료로 하고, 이 섬유원료를 금망으로 초조물을 제작하고 진동판 형상의 몰드에 상기 초조물을 프레스 성형하여 이루어진다.The speaker diaphragm based on chitosan fiber material of the present invention for achieving the above object is 95% or more of deacetylated chitin to produce chitosan fiber material, and the fiber material is made of a gold mesh to produce a diaphragm and a diaphragm-shaped mold It is made by press-molding the above-mentioned article.

상기 구성에 더하여, 상기 키토산 섬유원료로 금속이온을 흡착시켜 형성된 진동판으로 이루어진 것을 특징으로 한다.In addition to the above configuration, it characterized in that made of a diaphragm formed by adsorbing metal ions with the chitosan fiber raw material.

이하, 본 발명에 의한 키토산 섬유재를 주재로 한 스피커 진동판의 구성 및 그 제조방법에 대하여 설명한다.EMBODIMENT OF THE INVENTION Hereinafter, the structure of the speaker diaphragm which mainly uses the chitosan fiber material by this invention, and its manufacturing method are demonstrated.

먼저, 본 발명의 원재료에 대하여 설명한다.First, the raw material of this invention is demonstrated.

결국 게껍질 등에서 추출한 키틴을 탈 아세틸화하여 키토산을 만들고 습식방사법으로 펄프 또는 섬유상으로 키토산 섬유를 만든다.Finally, chitin extracted from crab shells and the like is deacetylated to produce chitosan, and wet spinning is used to produce chitosan fibers in pulp or fibrous form.

키틴의 기본 화학구조는 키토산이나 셀룰로오스와 동일하지만 2번 탄소에 위치한 아미노기의 형태가 다르며 그 화학적 성질 또한 달라져 섬유화 이후의 결합력이나 가공을 위한 용해성 등의 성질은 셀룰로오스나 키토산에 비하여 상당히 부족하다. 따라서 본 발명에서는 칼슘, 단백질을 제거한 키틴을 95% 이상 탈 아세틸화시켜 제작된 키토산을 사용하여 섬유화하였고, 섬유화 후 키토산의 분자구조 중 6번 탄소의 -OH를 유리화 시키고 분자 사이를 팽윤시켜 결합 용이성을 향상시켜 결국은 가공성이 양호하도록 하고 있다.The basic chemical structure of chitin is the same as that of chitosan or cellulose, but the shape of amino group located at carbon 2 is different and its chemical properties are also different. Therefore, the properties such as binding strength and solubility for processing after fibrosis are considerably insufficient compared to cellulose or chitosan. Therefore, in the present invention, the chitosan prepared by deacetylation of at least 95% of the chitin from which calcium and protein were removed was fibrized, and after fiberization, -OH of carbon 6 in the molecular structure of chitosan was liberated and swelled between molecules to facilitate binding. This improves the workability and eventually improves the workability.

따라서, 진동판 제조에 있어 키토산의 장점인 강성을 구비하는 가공성이 우수한 키토산을 제공하여 진동판 성형이 용이하도록 하고 있다.Accordingly, in the manufacture of a diaphragm, chitosan having excellent workability having rigidity, which is an advantage of chitosan, is provided to facilitate diaphragm molding.

이어서, 이와 같이 하여 얻은 키토산을 이용하여 스피커 진동판에 적용한 경우를 첨부된 도면을 참조하여 설명한다.Next, the case where it applies to the speaker diaphragm using the chitosan obtained in this way is demonstrated with reference to attached drawing.

도 1은 본 발명에 의한 스피커 진동판의 제조 공정을 나타낸 공정도이다.1 is a process chart showing a manufacturing process of the speaker diaphragm according to the present invention.

먼저 키토산을 이용하여 일정한 굵기(0.5∼2.0데니어)로 제조한 섬유를 추출하고(S10), 소정의 길이(1∼10mm)로 단섬유화하여 기초원료를 제작한다(S20).First, using chitosan to extract the fiber produced to a certain thickness (0.5 ~ 2.0 denier) (S10), and short fiber to a predetermined length (1 ~ 10mm) to prepare a base material (S20).

화학적 결합이 용이하도록 상기 단섬유상의 키토산 섬유를 팽윤시킨다(단계 30).The short fiber chitosan fibers are swollen to facilitate chemical bonding (step 30).

상기 가공된 원료를 수중(水中)에 분산하여 진동판의 형상으로 가공된 금망을 이용하여 진공으로 흡입하면서 초조물(抄造物)을 제작한다(S40).Dispersing the processed raw material in water (water) to produce a seaweed (抄 造物) while suctioned in a vacuum using a gold mesh processed in the shape of a diaphragm (S40).

상기 제작된 초조물을 진동판 형상의 몰드에 셋팅하고 150℃ 정도의 온도로 프레스 성형한다(S50).The prepared annealing is set in a diaphragm-shaped mold and press-molded at a temperature of about 150 ° C. (S50).

상기 성형된 진동판에서 불필요한 부분을 제거하고 에지를 접착하여 진동판을 완성한다(S60).The unnecessary part is removed from the molded diaphragm and the edge is bonded to complete the diaphragm (S60).

또한 상기와 같이 제작 시 종이 펄프를 복합하거나, 여러 가지 수지를 복합하여 가공 및 물성의 조정을 할 수 있으며, 장섬유상의 키토산을 이용하여 직조하거나 의사직조하여 복합재에 열 경화성 및 열가소성의 수지를 바인더로 하여 프레스에 의한 진동판 제조도 가능하다.In addition, when manufacturing as described above can be combined with the paper pulp, or various resins to adjust the processing and physical properties, weaving or pseudo-weaving using chitosan of long-fiber, binders of thermosetting and thermoplastic resin in the composite material It is also possible to manufacture a diaphragm by press.

이상 설명한 바와 같이, 본 발명에 의한 키토산 섬유재를 주재로 한 스피커 진동판 및 그 제조방법에 의하면, 천연고분자의 일종인 키토산의 고탄성과 고내부손실의 물성과 뛰어난 음향특성을 스피커 진동판으로 이용함으로써 음질의 재현 특성이 우수하며, 선명하고 해상도가 높은 고음질의 진동판을 제조하는 효과가 있다.As described above, according to the speaker diaphragm based on the chitosan fiber material according to the present invention and a method of manufacturing the same, the sound quality is achieved by using the high elasticity and high internal loss of the chitosan, which is a kind of natural polymer, and the excellent acoustic characteristics as the speaker diaphragm. The excellent reproduction characteristics of, and has the effect of producing a high-quality diaphragm of clear and high resolution.

아울러 본 발명의 사상과 범위 안에서 다양한 수정, 변경, 부가 등이 가능할 것이며, 이러한 수정 변경 등은 이하의 특허청구범위에 속하는 것으로 보아야 할 것이다.In addition, various modifications, changes, additions, and the like will be possible within the spirit and scope of the present invention, and such modifications should be regarded as belonging to the following claims.

Claims (3)

키틴을 95% 이상 탈 아세틸화하여 키토산 섬유원료로 하고, 이 섬유원료를 금망으로 초조물을 제작하고 진동판 형상의 몰드에 상기 초조물을 프레스 성형하여 이루는 것을 특징으로 하는 키토산을 주재로 한 스피커 진동판.Deoxylated chitin at least 95% to make chitosan fiber raw material, the fiber raw material is made of gold mesh, and the diaphragm is press-molded in the diaphragm mold to produce a speaker diaphragm based on chitosan. . 키토산을 이용하여 섬유를 추출하는 단계와,Extracting fibers using chitosan, 상기 섬유를 소정의 길이로 커팅하여 단섬유화 하는 단계와,Cutting the fibers to a predetermined length to shorten the fibers; 상기 컷팅한 섬유를 팽윤시켜 화학적으로 결합하는 단계와,Swelling and chemically bonding the cut fibers; 상기 화학적으로 결합된 원료를 용매에 분산시켜 진동판의 형상으로 된 금망을 이용하여 초조물을 만드는 단계와,Dispersing the chemically bound raw material in a solvent to make a seaweed using a gold mesh in the shape of a diaphragm; 상기 초조물을 진동판 형상의 형상의 몰드에 셋팅하고 약 150℃의 온도에서 프레스 성형하는 단계와,Setting the frit into a mold in the shape of a diaphragm and press molding at a temperature of about 150 ° C .; 상기 성형된 진동판에 에지를 접착하여 콘지를 완성하는 단계로 구성되는 것을 특징으로 하는 키토산 섬유를 주재로 한 스피커 진동판의 제조방법.A method of manufacturing a speaker diaphragm based on chitosan fibers, characterized in that the step of bonding the edge to the molded diaphragm to complete the cone. 제 1항에 있어서,The method of claim 1, 상기 키토산 섬유원료로 금속이온을 흡착하여 형성되는 진동판으로 이루어진 것을 특징으로 하는 키토산을 주재로 한 스피커 진동판.Speaker diaphragm based on chitosan, characterized in that consisting of a diaphragm formed by adsorbing metal ions with the chitosan fiber raw material.
KR1019990040060A 1999-09-17 1999-09-17 Speaker diaphragm using chitosan fiber as a main material and method for manufacturing the same KR20010028023A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100950993B1 (en) * 2008-09-05 2010-04-02 비에취어쿠스텔 주식회사 Fabrication method of cone papaer for speaker and the cone paper of speaker

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100950993B1 (en) * 2008-09-05 2010-04-02 비에취어쿠스텔 주식회사 Fabrication method of cone papaer for speaker and the cone paper of speaker

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