Color Fastness of Dyed Raw Linen Cloth Modified with Enzymes

Green thinking looks to develop alternatives with higher environmental advantage that traditional materials or processes. The present experimental studies are directed to investigation of dyeing the linen fabric prepared with modification with enzymes. In the research, 1% and 2% solution of cellulase enzyme Beizym ENC-SB （garment auxiliary of enzymes mixture of CHT R. BEITLICH GmbH/BEZEMA AG） and pectinase Beisol PRO （enzymes mixture for cleaning cellulose fibers of CHT R. BE1TLICH GmbH） enzyme solutions were used. The main objective of this work is focus on results studies of enzyme influence on dyeing of flax fabric with direct Solphenyl dye triade Blue FGLE （economical, fairly good light fast blue, main trichromatic component for medium shades with high wash fastness）, Scarlet BNLE （economical scarlet, main trichromatic component for medium to dark shades） 200%, and Yellow GLE （very bright neutral yellow, main trichromatic component for high wash fastness requirements）. The dye-bath exhaustion, color fastness to rubbing and washing were estimated. The color parameters before and after tests were calculated.

中世纪鼠疫流行时的防护服

在历史上,瘟疫曾经蹂躏欧洲。在1348年,巴黎医科大学医学院开设“流行病门诊”,建议所有害怕鼠疫的人穿尼绒或丝做的衣服并把其衣服放在有香料的地方,把窗装上玻璃或装上蜡布以阻止“变质”的空气的进入。相反的,如果往宅已经“被瘟疫传染”,就必须把门和窗打开或放屏风在打开之处使空气流通。病人在时,不要唱歌、不要跑动、不要大声喊叫,以免吸进大量的空气。医生只能短暂地停留在鼠疫病人前面,与他们远距离谈话,面对病人的背部。