共查询到19条相似文献,搜索用时 62 毫秒
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文章对黑色人发上天然色素的漂白进行了研究,得出提高人发纤维白度、减少纤维损伤的最佳漂白工艺条件。重点研究了还原漂白对人发漂白的作用,论述了用双氧水漂白人发的基本原理,探讨了双氧水漂白时亚铁离子的催化机理。在对黑色人发氧化漂白的基础上,对人发进行了还原漂白工艺的探讨,解决了人发漂白的难题,为假发制作企业的漂白工艺提供了改善依据。 相似文献
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黑色人发漂白的难点在于获得较高白度的同时保留原有人发的品质,常规的氧化还原漂白可赋予人发一定的白度,但使其手感干枯毛糙、无光泽.将纤维保护剂WBH应用于黑色人发的漂白工艺中,通过单因素试验得出纤维保护剂WBH、30%双氧水及柔软剂SILYOUSOFT T8182的最佳用量:漂白工艺中,30%双氧水的最佳用量为120%(omf),纤维保护剂WBH在Fe2+预媒处理和氧化漂白中的最佳用量分别为6%、8%(omf),SILYOUSOFT T8182在还原漂白中的最佳用量为8%(omf).扫描电镜照片也证实,纤维保护剂WBH对黑色人发起到保护作用. 相似文献
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蛋白酶对羊毛漂白的促进作用 总被引:4,自引:0,他引:4
通过对蛋白酶在H2O3中的稳定性、酶预处理、同浴漂白、组合漂白的研究,探讨了蛋白酶在正常氧漂工艺中对织物白度的促进作用及不同处理方式对织物白度和强力的影响。 相似文献
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孙鲁正靳广世许海英孔保运 《印染助剂》2023,(10):28-30
为了提高人发纤维染色后的色牢度和断裂强力,缩短生产流程,节能减排,分别采用传统工艺和超声波漂染一浴法对人发样品进行处理,研究处理后人发纤维的色牢度和断裂强力变化,并使用金相显微镜观察人发纤维表面形态。结果表明:70℃下,通过采用频率40 kHz、功率100 W的超声波进行漂染一浴处理30 min,人发纤维的耐摩擦色牢度达到5级,耐汗渍色牢度达到4~5级,断裂强力较传统工艺提升了6.2%,同时染料上染率提升0.875%,K/S值提升0.795%。 相似文献
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针对大豆蛋白纤维筒子纱漂染容易出疵的难题,实施非烧碱的氧漂前处理工艺,并给出了染色、固色、柔软工艺参数以及操作注意事项。 相似文献
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在牦牛绒选择性漂白工艺的清洗过程中分别加入 2种不同的具有络合铁离子功能的助剂 ,研究了助剂的种类、助剂处理的浓度、pH值及助剂清洗时间等工艺参数对漂白质量的影响 ,确定了络合助剂清洗的最佳工艺 相似文献
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拉伸-定形处理对人发强伸性能的影响 总被引:2,自引:0,他引:2
人发及羊毛等角蛋白纤维经拉伸一定形处理后,其强伸性能发生了一定的变化。文中系统地研究了拉伸处理及拉伸一定形处理对人发强伸性能的影响。结果表明,毛发拉伸保护剂对人发纤维具有明显地保护作用,从而使该拉伸改性工艺在较短的时间内得到较高的定形效果和较好的综合机械性能。 相似文献
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利用微波低温等离子体对人发进行处理,用于人发的拉伸细化。通过正交试验优化等离子体处理工艺参数,如回潮率、真空度、处理功率和处理时间等,得到最优等离子体处理工艺。实验结果表明,人发用空气为气氛的等离子体处理,在回潮率4.2%、真空度30 Pa、处理功率50 W的条件下,处理10 min得到最优效果。经对最优等离子体工艺条件处理后的人发进行拉伸,与未处理人发相比,断裂强力和断裂强度没有明显的变化;断裂伸长和断裂伸长率有一定程度的减小,初始模量略微增大;室温定形程度和沸水定形程度有一定程度的增加。 相似文献
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Untreated and bleached hair samples were analysed by FTIR spectroscopy. Cysteic acid and cysteine-S-thiosulphate were analysed by different data manipulations and various sampling techniques. Single-fibre analysis was achieved using the IR-microscope attachment to the FTIR instrument (transmission mode). An ATR diamond crystal was also used for both single fibres and tresses; this sampling technique was compared to a contact sample ATR cell based on a ZnSe crystal. The microscope was found to be very useful for the analysis of small portions of hair fibres; the effect of weathering along the length of the fibres and the extent of variability among the single fibres was assessed by this technique. The results clearly show a trend in the cysteic acid content increasing from the mid-point to the tip; it was found that hair samples are very heterogeneous. A standard variation of up to 11% is reported for the mean value of the intensity of absorption of cysteic acid in untreated fibres belonging to the same tress sample. The value of the variation decreases when the tress is bleached -- the longer the bleaching process the lower the value of the standard variation (4.5% for hair fibres bleached for 60 min using hydrogen peroxide). The contact sample ATR cell gave poor reproducibility as only poor sample-crystal contact was achieved and the level of noise recorded was too high to allow accurate detection. However the ATR diamond crystal was found to give sensitive and reproducible spectra since much higher levels of transmittance were achieved (better sample-crystal contact); this technique allowed measurements of groups of seven to nine hair fibres at once, but did not provide reproducible spectra of single fibres. Different data manipulations have been assessed; these include derivatization and calculation of peak heights and areas (ratioed by the intensity of absorption of the peaks chosen as internal standards to the amide III 1232--1242 cm-1 and CH2 stretching 1451 cm-1), normalization, averaging spectra and spectral subtraction. 相似文献
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