JPS5753196A - Acoustic diaphragm - Google Patents

Acoustic diaphragm

Info

Publication number
JPS5753196A
JPS5753196A JP12817880A JP12817880A JPS5753196A JP S5753196 A JPS5753196 A JP S5753196A JP 12817880 A JP12817880 A JP 12817880A JP 12817880 A JP12817880 A JP 12817880A JP S5753196 A JPS5753196 A JP S5753196A
Authority
JP
Japan
Prior art keywords
denatured
pulp
diaphragm
paper
carboxymethylcellulose
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.)
Pending
Application number
JP12817880A
Other languages
Japanese (ja)
Inventor
Mio Nishi
Koichi Tagawa
Yoriaki Kaneda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP12817880A priority Critical patent/JPS5753196A/en
Publication of JPS5753196A publication Critical patent/JPS5753196A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction

Landscapes

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

Abstract

PURPOSE:To obtain a diaphragm of a high Young's modulus, by adding a denatured carboxymethylcellulose to pulp to improve the fixing rate of a reinforcing agent of paper strength such as starch. CONSTITUTION:A denatured carboxymethylcellulose which is denatured by an acrylic acid or the like and is not soluble in water and has a swelling degree higher than that of pulp is added to raw materials for paper including nonionic natural macromolecules such as pulp and starch, and next, paper is made to obtain a diaphragm.
JP12817880A 1980-09-16 1980-09-16 Acoustic diaphragm Pending JPS5753196A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12817880A JPS5753196A (en) 1980-09-16 1980-09-16 Acoustic diaphragm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12817880A JPS5753196A (en) 1980-09-16 1980-09-16 Acoustic diaphragm

Publications (1)

Publication Number Publication Date
JPS5753196A true JPS5753196A (en) 1982-03-30

Family

ID=14978340

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12817880A Pending JPS5753196A (en) 1980-09-16 1980-09-16 Acoustic diaphragm

Country Status (1)

Country Link
JP (1) JPS5753196A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61249368A (en) * 1985-04-27 1986-11-06 Furuta Denki Kk Drying of laver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61249368A (en) * 1985-04-27 1986-11-06 Furuta Denki Kk Drying of laver

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