JPS5496126A - Preparation of fibroin dope - Google Patents

Preparation of fibroin dope

Info

Publication number
JPS5496126A
JPS5496126A JP306478A JP306478A JPS5496126A JP S5496126 A JPS5496126 A JP S5496126A JP 306478 A JP306478 A JP 306478A JP 306478 A JP306478 A JP 306478A JP S5496126 A JPS5496126 A JP S5496126A
Authority
JP
Japan
Prior art keywords
aqueous solutions
fibroin
dealkalization
desalting
subjected
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.)
Granted
Application number
JP306478A
Other languages
Japanese (ja)
Other versions
JPS574723B2 (en
Inventor
Kiyoshi Otoi
Hisao Naito
Yukio Horikawa
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.)
Kanebo Ltd
Original Assignee
Kanebo Ltd
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 Kanebo Ltd filed Critical Kanebo Ltd
Priority to JP306478A priority Critical patent/JPS5496126A/en
Publication of JPS5496126A publication Critical patent/JPS5496126A/en
Publication of JPS574723B2 publication Critical patent/JPS574723B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Separation Using Semi-Permeable Membranes (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Artificial Filaments (AREA)

Abstract

PURPOSE: A fibroin solution in a solvent is subjected to dealkalization and/or desalting using a specific membrane separator to prepare inexpensively title dope for forming with uniformity also in microscopic properties.
CONSTITUTION: Fibroin is dissolved in at least one solvent selected from the group consisting of copper-ethylene-diamine aqueous solutions, copper hydroxide-ammonia aqueous solutions, copper hydroxide-alkali-glycerol aqueous solutions, aqueous solutions of lithium bromide, chlorides, nitrates or thiocyanates of Ca, Mg or Zn, and aqueous solutions of sodium thiocyanate. The resulting solution is subjected to dealkalization and/or desalting using a multilayered membrane structure unit or hollow fiber structure unit of more than 10, preferably over 30, much perferably over 50 in the ratio of membrane area (cm2) to priming capacity (cm3).
COPYRIGHT: (C)1979,JPO&Japio
JP306478A 1978-01-12 1978-01-12 Preparation of fibroin dope Granted JPS5496126A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP306478A JPS5496126A (en) 1978-01-12 1978-01-12 Preparation of fibroin dope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP306478A JPS5496126A (en) 1978-01-12 1978-01-12 Preparation of fibroin dope

Publications (2)

Publication Number Publication Date
JPS5496126A true JPS5496126A (en) 1979-07-30
JPS574723B2 JPS574723B2 (en) 1982-01-27

Family

ID=11546888

Family Applications (1)

Application Number Title Priority Date Filing Date
JP306478A Granted JPS5496126A (en) 1978-01-12 1978-01-12 Preparation of fibroin dope

Country Status (1)

Country Link
JP (1) JPS5496126A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5300229A (en) * 1992-02-14 1994-04-05 Japan Exlan Company Limited Process for removing colored components from solvent for polyacrylonitrile
JPH09241399A (en) * 1996-03-08 1997-09-16 Fukushima Pref Gov Method for preparing tussah fibroin film and preparation of toilet lotion containing tussah fibroin
WO2001036531A1 (en) * 1999-11-15 2001-05-25 Zaidan-Houjin Ueda Sen-I Kagaku Shinkoukai Molecularly composite polymeric material of fibroin/cellulose and process for producing the same
WO2002072931A1 (en) * 2001-03-14 2002-09-19 Japan As Represented By President Of Tokyo University Of Agriculture And Technology Method for producing fiber and film of silk and silk-like material
JP2009221401A (en) * 2008-03-18 2009-10-01 Tokyo Univ Of Agriculture & Technology Reclaimed silk material and method of producing the same
WO2019066037A1 (en) * 2017-09-29 2019-04-04 Ｓｐｉｂｅｒ株式会社 Dope liquid and product using same, and structural protein fiber and method for producing same
CN113230889A (en) * 2021-05-25 2021-08-10 浙江工业大学 Preparation method of novel nanofiltration membrane based on copper hydroxide nanowires

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5300229A (en) * 1992-02-14 1994-04-05 Japan Exlan Company Limited Process for removing colored components from solvent for polyacrylonitrile
JPH09241399A (en) * 1996-03-08 1997-09-16 Fukushima Pref Gov Method for preparing tussah fibroin film and preparation of toilet lotion containing tussah fibroin
WO2001036531A1 (en) * 1999-11-15 2001-05-25 Zaidan-Houjin Ueda Sen-I Kagaku Shinkoukai Molecularly composite polymeric material of fibroin/cellulose and process for producing the same
WO2002072931A1 (en) * 2001-03-14 2002-09-19 Japan As Represented By President Of Tokyo University Of Agriculture And Technology Method for producing fiber and film of silk and silk-like material
WO2002072937A1 (en) * 2001-03-14 2002-09-19 Japan As Represented By President Of Tokyo University Of Agriculture And Technology Non-woven fabric comprising ultra-fine fiber of silk fibroin and/or silk-like material, and method for production thereof
JP2009221401A (en) * 2008-03-18 2009-10-01 Tokyo Univ Of Agriculture & Technology Reclaimed silk material and method of producing the same
WO2019066037A1 (en) * 2017-09-29 2019-04-04 Ｓｐｉｂｅｒ株式会社 Dope liquid and product using same, and structural protein fiber and method for producing same
JPWO2019066037A1 (en) * 2017-09-29 2020-11-05 Ｓｐｉｂｅｒ株式会社 Doping solution, products using it, structural protein fiber and its manufacturing method
CN113230889A (en) * 2021-05-25 2021-08-10 浙江工业大学 Preparation method of novel nanofiltration membrane based on copper hydroxide nanowires
CN113230889B (en) * 2021-05-25 2022-04-19 浙江工业大学 Preparation method of novel nanofiltration membrane based on copper hydroxide nanowires

Also Published As

Publication number Publication date
JPS574723B2 (en) 1982-01-27

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