JPS5692296A - Preparation of microcrystal of silk protein - Google Patents

Preparation of microcrystal of silk protein

Info

Publication number
JPS5692296A
JPS5692296A JP16815479A JP16815479A JPS5692296A JP S5692296 A JPS5692296 A JP S5692296A JP 16815479 A JP16815479 A JP 16815479A JP 16815479 A JP16815479 A JP 16815479A JP S5692296 A JPS5692296 A JP S5692296A
Authority
JP
Japan
Prior art keywords
solution
silk
silk protein
substance
cupri
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
JP16815479A
Other languages
Japanese (ja)
Other versions
JPS5737598B2 (en
Inventor
Rikuo Kihara
Hideo Kakigi
Kenji Wada
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.)
PIASU KK
PIASUARAIZU KK
Original Assignee
PIASU KK
PIASUARAIZU KK
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 PIASU KK, PIASUARAIZU KK filed Critical PIASU KK
Priority to JP16815479A priority Critical patent/JPS5692296A/en
Publication of JPS5692296A publication Critical patent/JPS5692296A/en
Publication of JPS5737598B2 publication Critical patent/JPS5737598B2/ja
Granted legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/64—Proteins; Peptides; Derivatives or degradation products thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Birds (AREA)
  • Dermatology (AREA)
  • Cosmetics (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Peptides Or Proteins (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE:To obtain the titled substance with a slight decomposition of silk protein and having improved dyeability, by dissolving a silk fiber in a solution of LiBr, cuprammonium or cupri-ethylenediamine, dialyzing the solution through a permeable membrane with a large amount of water, and gelatinizing the resultant pure silk protein solution. CONSTITUTION:A silk fiber which is prepared from a cocoon layer, raw silk or waste silk as a raw material by removing sericin or impurities suitably is dissolved in a concentrated solution of LiBr or cuprammonium or cupri-ethylenediamine at ordinary temperature of 60 deg.C or below to give an about 5-15% solution. The resultant solution is filtered if necessary, and the transparent solution is introduced into a cylindrical cellophane membrane, immersed in flowing water and dialyzed. The dialyzate is then gelatinized to give the titled substance. The substance is filtered and dried to afford a very fine needlelike crystal silk protein powder dyeable with various dyes, e.g. acid and direct dyes, under the same conditions as the silk fiber. The crystal of uniform composition scarcely containing active -COOH or -NH2 can be obtained.
JP16815479A 1979-12-26 1979-12-26 Preparation of microcrystal of silk protein Granted JPS5692296A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16815479A JPS5692296A (en) 1979-12-26 1979-12-26 Preparation of microcrystal of silk protein

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16815479A JPS5692296A (en) 1979-12-26 1979-12-26 Preparation of microcrystal of silk protein

Publications (2)

Publication Number Publication Date
JPS5692296A true JPS5692296A (en) 1981-07-25
JPS5737598B2 JPS5737598B2 (en) 1982-08-10

Family

ID=15862809

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16815479A Granted JPS5692296A (en) 1979-12-26 1979-12-26 Preparation of microcrystal of silk protein

Country Status (1)

Country Link
JP (1) JPS5692296A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0253841A (en) * 1988-08-19 1990-02-22 Idemitsu Petrochem Co Ltd Molding material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0253841A (en) * 1988-08-19 1990-02-22 Idemitsu Petrochem Co Ltd Molding material

Also Published As

Publication number Publication date
JPS5737598B2 (en) 1982-08-10

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