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Pigments of YEDDO-HAWTHORN (Rhaphiolepsis umbellata Makino) : 1. Extraction and fractionation of pigments and dyeing of various fabrics

Bulletin of the Faculty of Education, Yamaguchi University. Natural science Volume 22 Issue 2 Page 43-52
published_at 1972-09
Title
シャリンバイ(Rhaphiolepsis umbellata Makino)色素 : 大島紬染色について 第1報 色素の抽出、分別および染色
Pigments of YEDDO-HAWTHORN (Rhaphiolepsis umbellata Makino) : 1. Extraction and fractionation of pigments and dyeing of various fabrics
Creators Sadahiro Yoriko
Creators Watanabe Takashi
Source Identifiers
Pigments of YEDDO-HAWTHORN were most extracted by the sodium hydroxide solution among dilute solutions of sodium hydroxide, sodium carbonate, acetic acid and water, ethyl ether and acetone. Ultraviolet and visible absorption spectra of the solutions of YEDDO-HAWTHORN pigments which were extracted by above solvents were measured. The YEDDO-HAWTHORN pigments(NaOH, 0.1%) were separated at least twelve fractions by gel filtration with Sephadex LH-20(elution : aceton water (1:1) solvent), but in the gel filtration with Sephadex G-25(elution : pH 7.4 buffer) the greater part of the pigments were adsorpted firmly on the top of the gelcolumn. The pigments reacted to iron, alminium, chrome and copper ions in water solution and the colour of solutions changed. The YEDDO-HAWTHORN pigments(NaOH, 0.1%) has most dyed silk and dved cotton fairly well, but polyamide and polyacrylnitril fabrics were not almost dyed by the pigments. In the colour fixing by means of mud the colour of fabrics in the use of mud was different from the use of iron solution. Therefor the colour fixing was influenced not only iron in the mud but the other components.
Languages eng
Resource Type departmental bulletin paper
Publishers 山口大学教育学部
Date Issued 1972-09
File Version Not Applicable (or Unknown)
Access Rights metadata only access
Relations
[ISSN]0513-1693
[NCID]AN00243950
Schools 教育学部