A single-colour silk cloth can conceal several preparation stages. Tokyo’s mujizome reference separates scouring, washing and ji-ire from the later task of matching a colour sample.
Technique and structure
Scouring removes sericin, fats and other natural impurities from raw silk cloth while leaving fibroin. The next treatment washes out the substances used in scouring. Ji-ire then prepares an even cloth surface to avoid uneven dyeing. These operations address the substrate before colour matching balances lightness, saturation and hue. Calling the finished cloth plain-dyed says little about those earlier controls.
A colour sample is only one part of the enquiry
The traditional material list includes silk white cloth and both plant and chemical dyes. The word mujizome therefore does not, by itself, establish a plant-only dye recipe for an individual garment.
For international readers
Confirm the fibre, dyeing process and care label with the actual maker. Workshop scouring and redyeing descriptions do not supply a household treatment for finished silk.
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日本語
東京無地染：色合わせの前に行う精練と地入れ
東京無地染の資料は、セリシンや脂肪などを除きフィブロインを残す精練、その後の洗い、染め斑を避ける地入れを区別します。色合わせは明度・彩度・色相を見本に合わせる別の仕事です。材料欄には植物染料と化学染料の両方があり、無地染という名前だけで染料を決めません。