摘要
采用柠檬酸钠和乙醇钠复配成稀碱,并将其用于羊毛织物的预处理。优化的预处理工艺为:稀碱质量浓度0.6 g/L,在45℃处理40 min。对稀碱预处理前后的羊毛进行表征,发现处理后羊毛鳞片层边缘有轻微钝化现象,但结晶结构基本没有改变。氨基酸分析显示水解反应主要发生在羊毛的鳞片层。与高温直接染色相比,稀碱预处理后再低温染色的羊毛,织物表面得色量有明显提升,断裂强力损伤变大,但总体强力损伤在可接受范围内,耐皂洗色牢度提高了0.5级,耐光色牢度不变。
Sodium citrate and sodium ethoxide are used to compound dilute alkali,which is used in the pre⁃treatment of wool fabrics.The optimized pretreatment process is as follows:the concentration of dilute alkali is 0.6 g/L,and it is treated at 45℃for 40 min.The wool fabrics before and after the dilute alkali pretreatment are characterized,and it is found that there is slight passivation at the edge of the cuticle layer of the pretreated wool,but the crystal structure is basically unchanged.Amino acid analysis demonstrates that the hydrolysis re⁃action mainly occurs in the cuticle layer of wool.Compared with direct dyeing at high temperature,the surface color yield of wool fabrics dyed at low temperature after dilute alkali pretreatment increases significantly,the breaking strength damage becomes larger,but the overall strength damage is within the acceptable range,and the color fastness to soaping is increased by Grade 0.5.The color fastness to light remains unchanged.
作者
曹红梅
胡志良
CAO Hongmei;HU Zhiliang(School of Textile,Changzhou Vocational Institute of Textile and Garment,Changzhou Key Laboratory of Eco-Textile Technology,Changzhou 213164,China;Changzhou Tintin Textile Co.,Ltd.,Changzhou 213163,China)
出处
《印染》
CAS
北大核心
2021年第11期34-37,40,共5页
China Dyeing and Finishing
基金
江苏高校“青蓝工程”中青年学术带头人培养对象项目(苏教师函〔2021〕11号)
常州市生态纺织技术重点实验室(CM20183003)。
关键词
染色
天然染料
漆大姑
稀碱
预处理
羊毛
dyeing
natural dye
eriocarpous glochidion leaf
dilute alkali
pretreatment
wool
