茶树品种紫娟茶鲜叶的染色特性研究  

Study on the Dyeing Characteristics of Fresh Leaves from ‘Zijuan’

作　　者：刘敏[1] 王润贤[1] 金洋洋 朱双凤 LIU Min;WANG Runxian;JIN Yangyang;ZHU Shuangfeng(Jiangsu Tea Research Institute,Jiangsu Polytechnic College Agriculture And Forestry,Jurong 212400,China;College of Tea And Food Science Technology,Jiangsu Polytechnic College Agriculture And Forestry,Jurong 212400,China)

机构地区：[1]江苏农林职业技术学院江苏省茶业研究所,江苏句容212400 [2]江苏农林职业技术学院茶与食品科技学院,江苏句容212400

出　　处：《茶叶通讯》2022年第1期49-53,共5页Journal of Tea Communication

基　　金：江苏现代农业(茶叶)产业技术体系集成创新中心(JATS[2020]333,JATS[2021]372);江苏农林职业技术学院校企合作一般项目(2020kj030),江苏农林职业技术学院亚夫科技团队项目(2021kj03)。

摘　　要：紫鹃茶树是一种特殊的红紫芽茶树品种,单株新梢长有约2 ~ 4片红紫色叶片,花青素含量为普通红芽茶的3倍,具有较高的综合利用价值。为了探索该茶树品种鲜叶的染色特性,本试验以紫娟的鲜叶为原料,对不同冷冻时间、染液温度、固液比、煮染时间以及不同材质布料煤染效果进行比较。结果显示,紫娟鲜叶在冷冻15 d、固液比1∶3、染液温度90℃、煮染时间为50 min时,染色效果最佳,为紫红色,且不脱色。对染液加入不同媒染剂后在不同材质布料上的染色效果进行分析发现,紫娟染料在与不同的媒染剂结合下呈现不同色泽,加入KAl(SO_(4))_(2)·12H_(2)O媒染布料颜色偏暗、偏灰;加入Ca(OH)_(2)媒染布料颜色偏黄;加入CH_(3)COOH和CaCO_(2)媒染布料均为红紫色(CaCO_(3)媒染出的颜色深于CH_(3)COOH);对不同材质的布料进行染色研究发现,棉布的染色效果最佳。结论:针对不同的颜色要求可选择不同的媒染液,最佳的媒染布料为棉质布料。The ‘Zijuan’ is a special tea plant with red-purple bud.There are about 2 to 4 red-purple leaves in the new shoot of a single plant.The anthocyanin content is three times that of ordinary black bud tea,which has a high comprehensive utilization value.In order to explore the dyeing characteristics of this tea plant cultivar,this experiment used the fresh leaves of ‘Zijuan’ as raw materials to study the effect of different freezing time,dyeing solution temperature,solid-liquid ratio,cooking and dyeing time,and coal dyeing of fabrics of different materials.The results showed that when the fresh leaves of ‘Zijuan’ were frozen for 10 days,the solid-liquid ratio was 1:3,the dyeing temperature was 90 ℃,and the dyeing time was 50 min,the dyeing effect was the best.Under this condition it was purple-red and did not decolorize.The dyeing effects of different mordants on different fabrics were analyzed.It was found that Zijuan dye showed different colors when combined with different mordants.The color of mordant dyed fabrics was darker and gray when added with Kal KAl(SO_(4))_(2)·12H_(2)O and it showed yellow color when Ca(OH)_(2) was added.The mordant dyed fabrics with CH_(3)COOH and CaCO_(3) were red purple (the color of CaCO_(3) mordant is darker than CH_(3)COOH).It is found that the dyeing effect of cotton cloth was the best.It is concluded that for different color requirements,different coal dyeing solutions could be selected,and the best coal dyed fabric is cotton fabric.

关 键 词：茶树品种 紫鹃 茶鲜叶 染色特性 媒染 

分 类 号：S571.1[农业科学—茶叶生产加工]