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＜departmental bulletin paper＞
Dyeing properties of Rhaphiolepis umbellata Makino related to Oshima Tsumugi (I)

Creator
Creator Name
鮫島, 沙子
Sameshima, Isako
Affiliation
Affiliation Name
九州大学農学部木材化学教室
Laboratory of Wood Chemistry, Faculty of Agriculture, Kyushu University
Creator Name
近藤, 民雄
Kondo, Tamio
Affiliation
Affiliation Name
九州大学農学部木材化学教室
Laboratory of Wood Chemistry, Faculty of Agriculture, Kyushu University
Author PID
L000569
Creator Name
渡辺, 忠雄
Watanabe, Tadao
Affiliation
Affiliation Name
九州大学農学部食品衛生化学教室
Laboratory of Food Hygienic Chemistry, Faculty of Agriculture, Kyushu University
Language
Japanese
Publisher
九州大學農學部
Faculty of Agriculture, Kyushu University
Date
1975-08
Source Title
Science bulletin of the Faculty of Agriculture, Kyushu University
Vol
30
Issue
1/2
First Page
15
Last Page
20
Publication Type
Version of Record
Access Rights
open access
JaLC DOI
https://doi.org/10.15017/23194
Related DOI
九州大學農學部學藝雜誌 || 30(1-2) || p15-20
Science bulletin of the Faculty of Agriculture, Kyushu University || 30(1-2) || p15-20
http://www.agr.kyushu-u.ac.jp/
Related URI
九州大學農學部學藝雜誌 || 30(1-2) || p15-20
Science bulletin of the Faculty of Agriculture, Kyushu University || 30(1-2) || p15-20
http://www.agr.kyushu-u.ac.jp/
Relation
九州大學農學部學藝雜誌 || 30(1-2) || p15-20
Science bulletin of the Faculty of Agriculture, Kyushu University || 30(1-2) || p15-20
http://www.agr.kyushu-u.ac.jp/

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Details

Record ID
23194
Peer-Reviewed
Unrefereed
Subject Terms
大島紬
黒色染料
シャリンバイ
タンニン
分子量
染色性
高分子フラクション
ISSN
0368-6264
NCID
AN0005519X
Notes
The bark of Rhaphiolepis umbellata Makino has been used to produce the characteristic black color of so-called Oshima Tsumugi, Examination of dyeing properties for the hot water extracts from leaves as well as bark were carried out. Furthermore, both extracts were devided into two fractions by their molecular weights through dialysis for 24 hours. Each fraction was compared for their dyeing properties on the basis of organic matter weight under the modified Oshima dyeing method. The extracts from leaves dyed more poorly than those from bark at the same concentration of organic matter, but at the same concentration of tannin, both extracts dyed fairly well. Besides, inner dialysate tends to dye better than the outer. These results indicate the importance of high molecular weight fractions including tannin for dyeing properties. The linear relationship was observed between the weight increase of silk fabrics and luminosity.
大島紬の黒色染料として古くから用いられているシャリンバイ(Rhaphiolepis umbellate Makino)の樹皮からタンニン成分を抽出し,その分子量と染色性との関係について検討するとともに,緑葉からの抽出液についてもその染色性を樹皮と比較した.まず,タンニンの分子量と染色性との関係については,タンニンの分子量を透析によつて,セロハン膜を通過するものと通過しないものとに分けたにすぎないが,染色試験の結果,高分子フラクションの方がより強い黒染性をもつことを知つた.しかし,低分子フラクションでもかなりの染色性はもつているといえる.硫酸鉄処理後の絹布の増加量と染色布の明度との間にはかなり強い相関麗係があり,鉄とタンニンの結合性が染色性の強弱に関係あることが推測される.樹皮に比べると,緑葉中のタンニン量は1/5であるが,タンニン量を一定にすると,緑葉でも樹皮と大差ない程度の黒染性をもつている.しかし,緑葉による染色布の耐候性,耐洗濯性が,樹皮に比べてどうであるかは今後の問題である.
Created Date 2012.07.25
Modified Date 2022.11.11

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