针对姜黄天然染料在棉织物表面色深度(K/S值)低、染色牢度差的问题,利用壳聚糖与2,3-环氧丙基三甲基氯化铵制备壳聚糖季铵盐阳离子改性剂对棉织物进行改性。应用色度指标分析棉织物姜黄天然染料染色效果,通过单因素优化试验获得改性剂...针对姜黄天然染料在棉织物表面色深度(K/S值)低、染色牢度差的问题,利用壳聚糖与2,3-环氧丙基三甲基氯化铵制备壳聚糖季铵盐阳离子改性剂对棉织物进行改性。应用色度指标分析棉织物姜黄天然染料染色效果,通过单因素优化试验获得改性剂对棉织物的最优改性工艺为:在浴比1:50下,改性剂用量为4%(omf),改性温度为80℃,改性时间为40 min;改性后棉织物姜黄天然染料最优染色工艺为:在浴比1:50下,姜黄天然染料用量为5%(omf),染色温度为60℃,染色时间为40 min。采用该改性、染色工艺所染得棉织物的K/S值大大提高。经改性后的棉织物较未改性棉织物显示出良好的染色牢度,其皂洗牢度、摩擦牢度普遍提高了0.5～1级,达到了0eko-Tex Standard 100的标准要求。展开更多
Polyurethane modified organic silicone was successfully prepared from hydroxyl-terminated polyether modified silicone,toluene-2,4-diisocyanate( TDI), and NaHSO3. The chemical structure of the polyurethane modified org...Polyurethane modified organic silicone was successfully prepared from hydroxyl-terminated polyether modified silicone,toluene-2,4-diisocyanate( TDI), and NaHSO3. The chemical structure of the polyurethane modified organic silicone was characterized by FT-IR and1H-NMR. The polymer film on the cotton surface was investigated by scanning electron microscopy( SEM) and the results showed that a thin polymer film was successfully formed. The FT-IR of treated cotton fabrics indicated that hydroxyl( OH) of cellulose fiber and isocyanate group( NCO)of the polyurethane modified organic silicone has formed covalent cross-linking. X-ray diffraction( XRD) analysis revealed that the crystalline region of treated cotton fabrics wasn't changed. The wet rubbing fastness of treated cotton fabrics was increased by approximately rating 1 on average. There was little change of DE values for the polyurethane modified organic silicone. The softness was improved significantly.展开更多
文摘针对姜黄天然染料在棉织物表面色深度(K/S值)低、染色牢度差的问题,利用壳聚糖与2,3-环氧丙基三甲基氯化铵制备壳聚糖季铵盐阳离子改性剂对棉织物进行改性。应用色度指标分析棉织物姜黄天然染料染色效果,通过单因素优化试验获得改性剂对棉织物的最优改性工艺为:在浴比1:50下,改性剂用量为4%(omf),改性温度为80℃,改性时间为40 min;改性后棉织物姜黄天然染料最优染色工艺为:在浴比1:50下,姜黄天然染料用量为5%(omf),染色温度为60℃,染色时间为40 min。采用该改性、染色工艺所染得棉织物的K/S值大大提高。经改性后的棉织物较未改性棉织物显示出良好的染色牢度,其皂洗牢度、摩擦牢度普遍提高了0.5～1级,达到了0eko-Tex Standard 100的标准要求。
文摘Polyurethane modified organic silicone was successfully prepared from hydroxyl-terminated polyether modified silicone,toluene-2,4-diisocyanate( TDI), and NaHSO3. The chemical structure of the polyurethane modified organic silicone was characterized by FT-IR and1H-NMR. The polymer film on the cotton surface was investigated by scanning electron microscopy( SEM) and the results showed that a thin polymer film was successfully formed. The FT-IR of treated cotton fabrics indicated that hydroxyl( OH) of cellulose fiber and isocyanate group( NCO)of the polyurethane modified organic silicone has formed covalent cross-linking. X-ray diffraction( XRD) analysis revealed that the crystalline region of treated cotton fabrics wasn't changed. The wet rubbing fastness of treated cotton fabrics was increased by approximately rating 1 on average. There was little change of DE values for the polyurethane modified organic silicone. The softness was improved significantly.
