Antifouling treatment - Boukakou (English name) antisoiling

Japanese: 防汚加工 - ぼうおかこう（英語表記）antisoiling

A process that makes textile products less susceptible to stains and dirt, or makes soiled items easier to remove by washing. Stain-resistant methods vary depending on the type of fiber, the type of dirt, and whether the emphasis is on preventing adhesion or removing the dirt. Treatment with water-repellent finishes such as wax or silicone makes it harder for hydrophilic dirt to adhere, while treatment with organic fluorine-based oil-repellent finishes such as Scotchgard makes it harder for hydrophilic and oily dirt to adhere. Hydrophobic synthetic fibers are prone to static electricity and dry dirt, so antistatic finishes that make the fiber surface hydrophilic are effective in preventing dirt.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

繊維製品にしみや汚れを付きにくくしたり，汚れたものを洗濯で除去しやすくするための加工。繊維の種類，汚れの種類，付着を防ぐか除去に重点をおくかの違いにより，防汚の方法が異なる。ワックス，シリコーンなどの撥水（はつすい）加工剤で処理すると親水性の汚れが，またスコッチガードのように有機フッ素系撥油加工剤で処理すると親水性および油性の汚れが，付着しにくくなる。疎水性の合成繊維は静電気を帯びやすく乾性の汚れが付きやすいので，繊維表面を親水化する帯電防止加工が汚れの防止に有効である。

出典　株式会社平凡社世界大百科事典第２版について　情報

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