棉毛混纺织物的染整工艺

棉／毛混纺织物采用生物酶和双氧水进行前处理，经与传统弱碱处理的效果进行比较，前者处理织物的润湿性、强力及棉籽壳的去除效果均比后者好，且对羊毛损伤小；采用住友公司的Sumiifix HF染料一浴一步法染色，染品牢度性能良好。     

脱墨浆高白度漂白初步研究

通过对脱墨浆(主要是旧新闻纸脱墨浆)漂白的研究,探求获取高白度漂白脱墨浆的途径.结果表明,采用螯合剂预处理的H2O2-FAS两段漂白效果优良,白度增值达到11.9%ISO,浆料最终白度可达66.6%ISO.     

三倍体毛白杨低硬度NaOH-AQ浆的氧脱木素研究

对三倍体毛白杨低硬度NaOH-AQ浆氧脱木素进行了研究,通过实验分析了各影响因素(用碱量、温度、时间、氧压及助剂用量)对三倍体毛白杨低硬度NaOH-AQ浆氧脱木素后的卡伯值、黏度、白度以及木素的脱除情况等的影响,确定了该浆种氧脱木素较适宜的工艺条件.     

超高压加工对荔枝果肉中两种品质酶的影响

研究了超高压处理对荔枝果肉中可溶性蛋白质和过氧化物酶、果胶甲基酯酶的特性影响,同时研究了柠檬酸、L-抗坏血酸以及氯化钙与超高压共同处理对荔枝果肉中过氧化物酶（POD）和果胶甲基酯酶（PME）活性的影响。      

酸法苇浆漂白新工艺的探讨

分析金城造纸股份有限公司生产实际,借鉴国内外应用较广的漂白新技术,对金城造纸股份有限公司漂白工艺的改造,提出OHP和HXP两种工艺路线的改造方案。     

果胶酶在亚麻纱前处理中的应用

采用碱性果胶酶代替碱对亚麻纱进行精练,通过正交试验,确定了碱性果胶酶精练的最佳工艺条件,分析了影响碱性果胶酶对亚麻纱精练的因素.实验证明在较低的温度下采用碱性果胶酶进行精练,与常规的高温碱精练工艺相比,果胶去除程度高,润湿性好,白度相当,可节约能源,减少环境污染.     

超声波和NaOH对前处理亚麻纤维性能的影响

根据亚麻纤维的理化性能在超声波与NaOH作用下对其进行处理,研究了打成麻在不同试剂溶液处理时的处理温度、时间、超声波频率、溶液浓度等对纤维物理机械性能的影响;测定了处理后亚麻纤维的性能和结构变化,通过对长度、分裂度及柔软度的测试确定出各影响因素的影响排序。     

木棉纺织品的前处理条件探索

采用含NaOH的处理剂对含木棉的混纺纱进行煮练处理。通过芯吸高度、纱线拉伸性能测试,观察碱用量对纱线宏观性能的影响,以此表征杂质去除情况和对纤维的损伤程度。结果表明：在不破坏纤维本身结构的基础上,可有效去除纤维表面的脂肪蜡质等杂质,有助于后续加工处理。通过对比前处理后纱线的性能,得出木棉纺织品前处理的最佳条件：采用NaOH6g／L的处理剂,90℃恒温处理2h,在处理过程中施加一定的搅拌作用。     

Effects of pretreatment and various operating parameters on permeate flux and quality during ultrafiltration of apple juice

The central composite design with a quadratic model was used to investigate the effect of temperature (20–40 °C) and transmembrane pressure (TMP) (100–300 kPa) as well as pretreatment with gelatin and bentonite (0:0–300:1500 mg L^?1) on permeate flux and fouling resistance during ultrafiltration of apple juice. The changes in some physicochemical properties were also investigated. Pretreatment of apple juice with gelatin and bentonite and an increase in the temperature and TMP significantly improved the permeate flux. In general, physicochemical properties of apple juice other than polyphenolics were not affected by the applied parameters. Using 150 mg L^?1 of gelatin and 750 mg L^?1 of bentonite for fining significantly reduced the total phenolic content and so did the fouling resistance. Fouling resistance also decreased with increasing temperature, and increasing pressure increased the fouling resistance.     

Green and Effective Ammonium Carbonate-assisted Process for Drying Hemicellulose Obtained through Alkali Extraction of Bleached Bamboo Kraft Pulp

Hemicellulose has a wide range of applications,including that as an emulsifier for the food industry and raw material for the synthesis of bioethanol/biochemicals and biodegradable films.Hemicellulose is usually present as a spent liquor,such as the prehydrolysis liquor of the prehydrolysis kraft dissolving pulp production process and the alkali extraction liquor of the cold caustic extraction of pulp fibers.Due to its dilute nature,hemicellulose needs to be dried for practical utilization,and this is challenging.In this study,cellulose and hemicellulose in a bleached bamboo kraft pulp were separated using an alkali extraction process.Hemicellulose obtained from the extraction liquor was dried by an ammonium carbonate-assisted drying process.The effects of drying time and drying temperature were determined.Structure of the hemicellulose obtained by the ammonium carbonate-assisted drying process was similar to that of original hemicellulose,as revealed by detailed Fourier transform infrared and X-ray diffraction analyses.The novel drying method was more energy efficient and required a shorter drying time than the conventional freeze drying method,and the excellent solubility in alkaline solutions favored the chemical modification of hemicellulose.The dried hemicellulose can be used as a renewable raw material for the preparation of hydrogels and other substances such as bioethanol/biochemicals and biodegradable films.