Dyeing properties of the silk fibers from silkworm larvae reared on an artificial diet.

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  • 人工飼料育蚕絹糸の染色性
  • ジンコウ シリョウ イクサン ケンシ ノ センショクセイ

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The dyeing properties of the silk fibers obtained from silkworm larvae reared throughout the instar period on an artificial diet (AD-fibers) or mulberry leaves (ML-fibers) were evaluated in using direct, acid and basic dyes. The AD-fibers absorbed slightly larger amounts of water vapor and liquid water than the ML-fibers. The AD-fibers adsorbed slightly larger amounts of direct dyes in equilibrium at 80°C than the ML-fibers. There were no differences in the equilibrium dyeing properties between both fibers when acid and basic dyes were used. The AD-fibers showed a slightly higher dyeing rate with acid dyes at 30°C than the ML-fibers. From these results, it was concluded that the AD-fibers may have a coarser structure than the ML-fibers.

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