The salt-free reactive dyeing of cotton fabric meets the need of the modern textile industry and overcomes the problems posed by salt usage. In this study, a pad-irradiate-pad-steam (PIPS) process for the salt-free dyeing of cotton fabric with a reactive dye was applied. In this process, 3-chloro-2-hydroxypropyltrimethylammonium chloride (CHPTMAC) was used to modify the fabric with cations under microwave heating. Then, the cationic fabric was dyed using a reactive dye. The influence of the cationising conditions in the PIPS process on the K/S value of the dyed cotton fabric was investigated. The results showed that the CHPTMAC concentration, the mole ratio of sodium hydroxide to CHPTMAC, the microwave irradiation power and the treatment time had significant effects on the dyeing of cotton fabric. Also, fastness to light, washing, and rubbing of the dyed cotton fabric was satisfactory.

中文翻译：

---

棉织物无盐轧染-轧染-蒸汽活性染色工艺及阳离子化条件对其染色的影响

棉织物的无盐活性染色满足了现代纺织工业的需要，克服了用盐带来的问题。在这项研究中，应用轧染-辐照-轧染 (PIPS) 工艺对活性染料棉织物进行无盐染色。在这个过程中，3-氯-2-羟丙基三甲基氯化铵（CHPTMAC）被用来在微波加热下用阳离子对织物进行改性。然后，使用活性染料对阳离子织物进行染色。PIPS工艺中阳离子化条件对K / S的影响研究了染色棉织物的价值。结果表明，CHPTMAC浓度、氢氧化钠与CHPTMAC摩尔比、微波辐照功率和处理时间对棉织物的染色有显着影响。此外，染色棉织物的耐光牢度、耐洗牢度和耐摩擦牢度也令人满意。