共查询到20条相似文献,搜索用时 786 毫秒
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介绍了人造合成革基布的分类、生产现状和发展趋势,指出今后人造合成革基布将主要使用超细纤维非织造布、复合织物和功能性非织造布。 相似文献
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合成革用非织造布概述 总被引:2,自引:0,他引:2
概述了合成革的技术特征及应用领域,介绍了国内合成革加工的情况,重点对合成革用非织造基布的原料选择、工艺要求、生产方法以及以非织造布为基布的合成革的生产方法进行了阐述。 相似文献
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分析了我国针刺法非织造布产业目前所面临的新情况;介绍了应用针刺法生产超纤合成革基布和高密度合成革基布的工艺技术以及传统纺织后整理技术在针刺法非织造布生产中的应用;解析了针刺法合成革基布常见的质量问题及其产生原因;指出针刺法非织造布生产企业应寻求多元化发展,在共赢中做强我国的针刺法非织造布产业。 相似文献
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超细纤维合成革的市场及技术进展 总被引:1,自引:0,他引:1
超细纤维合成革是以聚氨酯为基体,用超细纤维非织造布增强的复合材料。高质量超细纤维合成革的研制和开发是市场的需求。本文结合市场与技术介绍了国内外超细纤维合成革行业的发展现状及趋势,期望国内的生产企业能结合自身的生产实际吸收国外的先进技术和理念并实现再创新。 相似文献
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着重分析了沥青防水卷材用基胎聚酯非织造布生产设备性能,对基胎布产品的影响,同时提出了合成革基布生产线设备选型中要注意的几个问题。 相似文献
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研究了苯甲醇对超细纤维PU服用革的染色性能的影响和它的用量对染色结果的影响。试验结果证明,苯甲醇可以在较低的染色温度下,取得令人满意的染色效果。 相似文献
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天然皮革服装具有独特的穿用风格特征和热湿舒适性能。研究中选取绵羊服装革、PU合成革、PVC人造革作为主要实验对象,通过对上述三种材料湿热舒适性能指标的测定和比较,分析了不同材料之间湿热舒适性能的差异。并根据三种材料纤维编织状态和孔隙分布SEM图的对比分析,探讨了材料结构中纤维编织孔隙状况对材料热湿舒适性能的影响。实验结果表明,天然皮革的热湿舒适性大大优于仿皮革材料,纤维结构以及涂饰膜中孔隙的多少、分布和孔隙通道状况是影响皮革服装热湿舒适性的重要因素。 相似文献
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本文对尼日利亚几个地区的传统植鞣革样进行了分析,以评价其物化性能并与国际认可的标准进行了比较。结果表明某些品种的革质量可能达到国家认可标准。本文还对在生产过程中如何提高皮革质量提出了改进意见。 相似文献
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《Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment》2013,30(7):1164-1174
Patulin is a mycotoxin commonly found in certain fruit and fruit products. For this reason many countries have established regulatory limits pertaining to, in particular, apple juice and apple products. Fruit leathers are produced by dehydrating fruit puree, leaving a sweet product that has a leathery texture. A recent report in the literature described the detection of patulin at substantial levels in fruit leathers. To investigate this further, an ultra-high-performance liquid chromatography-photodiode array (UPLC-PDA) method was developed for the sensitive detection of patulin in fruit leathers. Investigations were also made of the suitability of direct analysis in real time-mass spectrometry (DART-MS) for detection of patulin from the surface of fruit leathers. Results indicated DART-MS was insufficiently sensitive for quantification from the surface of home-style apple leathers, although patulin spiked onto the surface of leather or peel could be detected. The UPLC-PDA method was used to determine the fate of patulin during the preparation of home-made fruit leathers. Interestingly, when a home-style process was used, the patulin was not destroyed, but rather increased in concentration as the puree was dehydrated. The UPLC-PDA method was also used to screen for patulin in commercial fruit leathers. Of the 36 products tested, 14 were above the limit of detection (3.5 μg kg–1) and nine were above the limit of quantification (12 μg kg–1). Positive samples were confirmed by UPLC-MS/MS. Only one sample was found above the US regulatory limit for single-strength apple juice products (50 μg kg–1). These results suggest patulin can be concentrated during preparation and can be found in fruit leathers. The limited survey suggests that patulin is fairly prevalent in such commercial products, but that the levels are usually low. 相似文献
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皮革透水汽性能的研究 总被引:5,自引:2,他引:5
从透水汽性能方面研究了未涂饰皮革、聚氨酯涂饰皮革、贴膜皮革和合成革的物质传递性能。研究结果表明 :涂饰对皮革的透水汽性能影响很大 ,未涂饰皮革的透水汽性能远远优于涂饰皮革、贴膜皮革和合成革。还分析了皮革的透水汽机理。未经过涂饰的皮革的透水汽作用是水分子在蒸汽压力作用下 ,在皮革微孔内的迁移和胶原上亲水性基团运动对水分子的传递的加合。而涂饰后的皮革、贴膜皮革和合成革的透水汽作用则只是水分子在蒸汽压力作用下在皮革微孔内迁移的结果。要提高成品皮革的透水汽性能 ,应该从如何提高皮革的孔隙率和皮革及涂饰剂的亲水性基团数目方面进行研究 相似文献
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