PLA/棉混纺织物一浴一步法染色工艺研究

在PLA/棉混纺织物的一浴一步法染色过程中,以上染率和洗涤沾色情况作为衡量染色效果的依据,筛选了适合PLA/棉混纺织物一浴一步法染色的三原色染料,并分别研究了分散染料和活性染料的提升性。     

涤/棉混纺织物的一浴染色

涤/棉混纺织物的应用愈来愈广泛。但涤/棉混纺织物的染色一般是用两浴染色法,工艺流程长,能耗大,成本高。若把传统的两浴染色改为一俗染色法,可节省时间、能量和降低成本。目前采用两浴法染色的原因,主要是染涤和染棉用的两种染料的性质相差甚远,不适     

仪纶/涤纶/棉混纺织物一浴法染色技术

超仿棉纤维与其它纤维混纺可提高织物的吸湿性能,但传统的分散/活性染料两浴法染色工艺复杂、能源消耗大、生产效率低。本文对盛发纺织印染有限公司设计的仪纶/涤纶/棉混纺织物(20/50/30)进行了一浴法染色技术研究。结果表明,耐摩擦色牢度、耐洗色牢度、耐光色牢度为4级左右,混纺织物的回潮率为4.54%,静电压为733 V,半衰期为1.14 s,达到仿棉的效果并优于普通涤/棉混纺织物。     

涤/棉针织物的一浴练染效果探讨

为了分析涤/棉混纺织物一浴练染工艺的可行性,对一浴练染工艺的染色效果进行了探讨。结果表明:涤/棉混纺织物一浴练染工艺中,分散/活性染料二步染色法比分散/活性染料一步染色法更有利于染料的上染、得色量及提升性的提高,有利于色牢度和匀染性能的提高。一浴练染工艺中分散/活性染料二步法的染色K/S值、耐洗牢度、摩擦牢度均与涤/棉传统染色工艺相接近,提升性比传统工艺稍有差距;一浴练染工艺分散/活性染料二步染色法与传统染色工艺比较对色调没有影响;操作误差对一浴练染的重现性影响较小。     

混纺织物用节能型染料系列

近十年来混纺织物和交织织物发展非常迅速,尤其是涤/棉、涤/粘、晴/棉等织物逐渐代替了传统的单一纤维构成的织物,印染行业为了解决它们的染色,长期来主要采用两浴法染色即选择适于不同纤维的染料分两浴染色,这种工艺工序多、流程长、强度大、能耗高,以后虽也使用一浴两步法染色即不同染料在染色的不同阶段添加到同一浴     

涤棉混纺织物染色技术的进展

本文概述了涤棉混纺织物染色技术的进展，包括一浴染色，连续染色，染色整理一步法以及氨基硅烷，苄醇等助剂在涤棉织物染色中的作用。     

涤/棉混纺织物冰染染料色淀转移法深色染色研究

本文对涤/棉混纺织物采用冰染染料热熔一浴法染色工艺进行了探索.在预先制得冰染染料色淀的基础上,再与显色液同浴上染涤/棉混纺织物,经汽蒸、焙烘等后处理,涤和棉即可分别被染色,且得色均匀。大样生产表明,该工艺的牢度及强力指标,均能达到国家标准.文中给出了该工艺的最佳工艺处方及条件.     

实用染色的若干应用技术(65)——毛/粘混纺织物染色不能使用硫酸的原因

毛/粘混纺织物一般采用两种染料进行染色:一种是酸性、活性染料两浴法染色;另一种是酸性、直接混纺(D-型)或耐晒染料同浴一步法染色.前者由于工艺繁琐,成本较高,大多数用于高档精纺面料的染色;后者在生产上则应用广泛.     

分散染料在涤/棉混纺织物热熔固色中的转移机理

涤纶纤维及其混纺织物是服用性能较好的织物。据统计表明,涤纶总产量的一半被用于涤/棉混纺。目前,涤/棉混纺的染色主要是以分散-还原或分散-活性染料采用二浴二步或一浴一步的方法。使用单一染料(活性分散)对涤/棉混纺染色的研究工作也在开展。这些染色过程都与分散染料在高温下对涤纶纤维的固色有关,所以研究分散染料对涤/棉混纺热熔固色的转移机理具有重要的理论意义和现实意义。关于染料同纤维的结合型式,Wegmann根据染料-纤维间键的性质归纳为四类:1.分子或晶体质点的“包容”,即机械     

交链染料的研究—棉用染料的一种创新

我国涤/棉混纺织物的产量逐年递增,目前,已占全部棉织物的五分之一强,印染部门主要采用两浴法对其染色。除用于涤纶纤维的染料皆为分散染料外,用于棉纤维的染料有好多种,如还原染料、硫化染料和活性染料等。由于两浴法染色工艺长、难控制、成本高、重现性差,因此国内不少印染单位都在研究一浴一步法新染色工艺。我公司在一九八五     

Optimal dyeing systems for resistance to the physical strength loss of the PLA/cotton blended fabric

In this study, optimization of disperse/reactive dyeing systems for resistance to the physical strength loss of Poly(lactic acid) (PLA)/cotton blended fabric was investigated. The blended fabric underwent a two‐bath, two‐stage dyeing process in which the PLA component of the blended fabric was dyed using two disperse dyes, followed by the cotton component being dyed with six reactive dyes containing different reactive groups—dichlorotriazine, monochlorotriazine, sulphatoethylsulphone, monofluorotriazine, monochlorotriazine/sulphatoethylsulphone, and monofluorotriazine/sulphatoethylsulphone groups. The optimal dyeing systems were established according to the fixation rate of the dyes, tear/tensile strength loss, and SEM micrographs of the fabric. To avoid the strength loss during the disperse/reactive dyeing process, the recommended disperse dyeing conditions were 110°C, pH 5 for 20 min, whereas the reactive dyeing conditions should be temperature ≤60°C and alkali concentration ≤3 g/L. In this regard, reactive dyes containing monofluorotriazine and monofluorotriazine/sulphatoethylsulphone groups were especially suitable for the reactive dyeing systems. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011     

天成HN型活性染料涤/棉一浴一步法染色

天成HN型活性染料是一系列高温染色中性反应固着型具有季胺型吡啶甲酸基团的三嗪型活性染料,具有较高的染色牢度和良好的染色性能。本文研究了HN型活性染料用于涤/棉的一浴一步法染色工艺。工艺宽容性大,染色重现性好。     

纯棉织物涂料染色水洗褪色率的控制

纯棉织物涂料染色水洗褪色要达到洗后露白的特殊效果,中浅色品种宜采用全涂料染色,深色品种常采用活性/涂料两浴法染色,但活性/涂料两浴法染色洗后露白效果不佳,分别探讨了全涂料染中浅色、涂料/活性-浴法染深色的染色工艺,分析涂料染色水洗褪色率影响因素,更有效地控制水洗褪色率,保证洗后露白效果.     

Waterless dyeing of polylactic acid with disperse dyes using decamethylcyclopentasiloxane as medium

Polylactic acid (PLA) fibre as a new generation of eco-friendly polyester fibre is expected to substitute polyethylene terephthalate (PET) fibre to be an important textile fibre raw material. However, there exist severe strength loss and light dyeing colour by the traditional water bath dyeing method, which seriously affect the promotion and application of PLA fibre in the textile fields. Therefore, it is necessary to study waterless dyeing method for PLA. Decamethylcyclopentasiloxane (D5) possesses excellent physical and chemical properties with the characteristics of odourless, non-flammable, and stable to various chemicals, which has been studied to be used as a waterless dyeing medium for PET fabric. In this study, D5 was selected as the medium to study the waterless dyeing process and properties for PLA. The effects of disperse dye dosage, dyeing temperature, dyeing time and liquor ratio on the dyeing properties of PLA fabric were investigated. The results showed that the optimal dyeing process conditions were as follows: the dye dosage was 4%, dyeing temperature and time were 120°C and 40 min, respectively, and the liquor ratio was 1:10. Then PLA was dyed by three different colour disperse dyes using the optimal process which were compared with the traditional water bath. The results showed that the properties of dyed PLA fabrics with D5 could reach the dyeing effect of the traditional water bath method, while causing less influence on its mechanical property. Therefore, this research proved that D5 can be used as a dyeing medium for PLA fabric to substitute the traditional water bath dyeing.     

槐米染色棉织物工艺及其抗紫外性能研究

为实现槐米染料的工业化应用及提高棉织物的功能性,分析了使用壳聚糖、Al3+、Fe2+媒染剂预媒染色法对棉织物染色效果的影响,重点研究了铝预媒染方法染色温度、染色时间、pH值等工艺参数对染色棉织物K/S值的影响,并测试了槐米染色棉织物的抗紫外性能。结果表明:直接使用槐米染色的效果较差;壳聚糖媒染对上染效果影响不大,使用铝、铁媒染剂,可得到不同颜色的棉织物;铝媒染剂染色棉织物为鲜艳的黄色,为较好的媒染方法;铝预媒染染色方法染色优化条件为:温度为80℃,染色时间120分钟,染浴pH值为6.8;铝预媒染染色棉织物具有较好的抗紫外性能。     

苎麻/棉混纺毛巾染整工艺探讨

苎麻／棉混纺毛巾经一浴法煮漂后，进行抛光酶处理，用活性染料染色，再进行柔软整理。给出了溢流染整加工工艺的技术条件。     

天然染料腐植酸在纯棉针织物染色上的研究

通过在碱剂、温度、助剂对天然染料腐植酸在纯棉针织物上的上染探讨了腐植酸在纯棉针织物上的染色工艺。在外加盐NaC l的作用下,使用Fe3＋为酶染剂上染纯棉针织物的最佳工艺是pH=3.5、CFe3＋=4g/L,T=35℃,浴比：1：50情况下浸染30m in。     

活性染料无盐无碱染色研究

通过对活性染料染色整理一浴的工艺条件进行分析,得出最佳的染色工艺条件:浸轧(80%轧余率)→堆置(18小时~24小时)→烘干(100℃×3分钟)→焙烘(160℃×3.5分钟)→后处理。筛选出了适合染色整理一浴的活性染料:活性翠蓝、活性红HE-7B、活性黄HE-4G、活性红HE-3B。同时不仅考虑了染料浓度对皂洗后染料的提升性能、染料浓度对织物物理性能的影响,还分析了不同有机硅油柔软剂对织物的折皱恢复角和撕破强力的影响,得出用20g/L的柔软剂T689较适合该工艺。     

Novel hydrolysable azo disperse dyes based on N‐ester‐1,8‐naphthalimide: dyeing of polyester–cotton blends

The dyeing of polyester–cotton blends with new alkali‐hydrolysable azo disperse dyes based on N‐ester‐1,8‐naphthalimide was investigated. Polyester–cotton blend fabrics were dyed using both one‐ and two‐bath methods. Dyes 3 and 4 offered lower colour yield on polyester using the one‐bath method. For the rest of the dyes, employing either the one‐ or two‐bath method resulted in a similar colour yield on polyester fabric. The results for fastness properties and colour yield of the dyeings showed that the dyes were suitable for dyeing polyester–cotton blends using the one‐bath method. The kinetic study of hydrolysis of the dyes in alkali media obeyed the pseudo first‐order reaction rate.     

Modelling the properties of one‐step pigment‐dyed and finished polyester/cotton fabrics using response surface methodology

Dyeing of polyester/cotton blended fabrics with two different classes of dyes for polyester and cotton is a lengthy and expensive procedure owing to different fibre contents that need different auxiliaries, pH, and temperature conditions. The aim of this study was to investigate and model the properties of a combined pigment dyeing and hand‐building finishing system for polyester/cotton blended fabrics. The one‐step process was investigated using response surface methodology, taking concentrations of pigment, softener, and hand‐building finish as experimental variables. It was found that increase in hand‐building finish helps to improve colour fastness at higher pigment concentrations but results in deterioration in fabric tear strength. However, the decrease in tear strength can be minimised by increasing the softener concentration. For a 15 g l^?1 pigment concentration, optimum fabric tear strength, crease recovery angle, bending length, and dry and wet rubbing fastness properties were obtained using 60 g l^?1 of softener and 65 g l^?1 of hand‐building finish. The prediction equations developed in this study can be used to determine the required amounts of softener and hand‐building finish to achieve commercially acceptable results at different pigment concentrations.