1)  shellac
紫胶,虫胶
2)  sdshellac
紫胶，虫胶
3)  shellac (shellack)
虫胶，紫胶，虫胶清漆
4)  seedlac
紫胶
1.
Aleuritic is an important raw material in the synthesis of civetone or dihydrocivetone in perfumery industry An extraction process of aleuritic acid from the seedlac was developed.
以颗粒紫胶为原料提取紫胶桐酸,在不加入任何有机溶剂的情况下,可获得质量分数>98%的紫胶桐酸产品。
2.
the composition and structure of seedlac are introduced in this paper,the usage,properties and specification,and the manufacture process of the series products of seedalc are also introduced.
概述了紫胶的组成和结构,以及国内外紫胶组成与结构的差别。
5)  Shellac
紫胶
1.
Application of Shellac Resin in Fabricating Optical Polishing Pills;
紫胶树脂在加工光学抛光片中的应用
2.
Used as raw material, shellac was immersed with distilled water and lac dye was extracted.
以紫胶为原料,通过单因素及正交实验研究紫胶色素提取效率的诸多因素影响,结果表明:紫胶色素提取最佳工艺条件为粒度<1mm、料液比1∶12、浸泡温度60℃、浸泡时间6h、提取级数3级。
3.
The research is made on dewaxing shellac by centrifugal subside and refining shellac-wax by Carbon tetrachloride extraction.
介绍了用离心沉降对紫胶脱蜡和四氯化碳萃取精制紫胶蜡的研究过程和结果 。
6)  lac
紫胶
1.
Study on the phenol-formaldehyde resin adhesive modified with lac;
紫胶改性酚醛树脂胶粘剂的研究
2.
Identification of Different Lac with Infrared Spectrum;
不同类型紫胶的红外光谱鉴别
3.
The Basic Compostition of Domestic Lac;
中国紫胶树脂基本组成的研究
7)  lakh
紫胶
8)  aleuritic acid
紫胶桐酸
1.
Extraction of aleuritic acid by saponification aided with ultrasonic wave;
超声皂化法提取紫胶桐酸
2.
Aleuritic is an important raw material in the synthesis of civetone or dihydrocivetone in perfumery industry An extraction process of aleuritic acid from the seedlac was developed.
以颗粒紫胶为原料提取紫胶桐酸,在不加入任何有机溶剂的情况下,可获得质量分数>98%的紫胶桐酸产品。
3.
The composition and process of lac wax,lac dye,and aleuritic acid are introduced as an important part in the thesis,the trend of the seedlac product development and design,such as the mechanism of bleaching,the technique of bleaching,shellac dechlorination,new applications of seedlac etc.
详细阐述了国内外紫胶深加工系列产品的加工技术及生产工艺,重点介绍了紫胶蜡、紫胶色素、紫胶桐酸、漂白胶的生产技术及工艺状况。
9)  Bleached lac
漂白紫胶
10)  shellac-wax
紫胶蜡
1.
The research is made on dewaxing shellac by centrifugal subside and refining shellac-wax by Carbon tetrachloride extraction.
介绍了用离心沉降对紫胶脱蜡和四氯化碳萃取精制紫胶蜡的研究过程和结果 。
补充资料：紫胶
紫胶
lac

   紫胶虫吸取寄主树树液后分泌出的紫色天然树脂。又称虫胶、赤胶、紫草茸等。主要含有紫胶树脂、紫胶蜡和紫胶色素。紫胶树脂粘着力强，光泽好，对紫外线稳定，电绝缘性能良好，兼有热塑性和热固性，能溶于醇和碱，耐油、耐酸，对人无毒、无刺激，可用作清漆、抛光剂、胶粘剂、绝缘材料和模铸材料等，广泛用于国防、电气、涂料、橡胶、塑料、医药、制革、造纸、印刷、食品等工业部门。紫胶蜡又称虫胶蜡，是一种黄色硬质天然蜡，硬度大，光泽好，对溶剂保持力强，可作为巴西棕榈蜡的代用品，用于电器工业、抛光剂和鞋油等。紫胶色素是一种鲜红无毒粉末，可作为良好的食用红色素。
   从树上采集下的胶块除去树枝等杂质后称紫胶原胶。原胶粉碎、筛选后，在洗桶中加水搅拌和漂洗，后期再加入少量助洗剂。洗净后离心脱水用干燥机烘干成为半成品粒胶。粒胶可加工成各种产品。如片胶、紫胶色素、紫胶蜡。
   原胶含树脂70％～80％，蜡质5％～6％，色素1％～3％，水分1％～3％，其余为虫尸、木屑、泥沙等杂质。虫尸和树脂中都含有色素。紫胶树脂是羟基脂肪酸和羟基倍半萜烯酸构成的脂和聚脂混合物。紫胶树脂中能溶于乙醚的称软树脂，约占30％；不溶于乙醚的称硬树脂，约占70％。紫胶色素是蒽醌类化合物，紫胶蜡主要由C28到C34的偶数碳原子脂肪醇和脂肪酸组成，其含量相应为77.2％和21％，说明其中有不少游离醇存在，蜡中的少量碳氢化合物主要是C27和C29烷。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条