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目前,国内涤纶织物的增白,一般采用DT增白剂的高温浸染和轧染焙烧两种方法。浸染法需一定的高温高压设备,时间长,工效低,耗能多。同轧染法一样,还需添加着色剂来改善产品的视觉效果。最近我们用拜耳公司的Blankophor ER liquid 330%增白剂(以下简称ER增白剂)做了涤纶织物和涤/棉混纺织物的增白小样和大样试验,效果很好。 相似文献
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合成了3个含不同数目磺酸钠基团的二苯乙烯联苯类荧光增白剂,利用1H NMR和红外光谱确证了其结构。采用浸渍法对棉布和涤纶进行增白,得到了不同浓度的增白剂对棉布和涤纶的增白效果。研究结果表明,3个增白剂均对棉布和涤纶具有较高效率的增白效果,当增白剂浓度为0.05%o.w.f和0.4%o.w.f时,涤纶和棉布的白度最大可分别提升到180.592和151.733。随着增白剂所含-SO_3Na (磺酸钠基团)数目的增加,棉织物白度增加。然而,随着增白剂所含-SO_3Na (磺酸钠基团)数目的增加,涤纶织物的白度反而降低。该研究可为含-SO_3Na的二苯乙烯联苯类增白剂在棉布和涤纶中的应用提供思路,为更好地设计与合成性能优异的二苯乙烯类荧光增白剂提供指导。 相似文献
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本文介绍了涤纶增白的方法及对应的国内商品荧光增白剂。当前用原液增白法生产的涤纶产品其国内市场份额还很低,染整增白法依然是涤纶增白的主流。增白剂新产品及其工艺开发和涤纶增白工艺研究仍是今后努力的方向。 相似文献
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前言荧光增白剂是一种染料,是利用光学上的作用,增加日光下白度的化学药剂,所以荧光增白剂又称白色荧光染料。用荧光增白剂处理织物,能使织物增白的机理是:荧光增白剂不仅能反射日光的可见光波长,而且能把紫外线反射为可见光,这就使织物在日光下显出晶莹、透亮的洁白。 相似文献
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荧光增白剂PS—1在涤纶经编织物和涤/棉混纺织物浸染增白工艺中的应用探讨 总被引:1,自引:0,他引:1
本文探讨了新型涤纶荧光增白剂PS-1在纯涤纶编织物和涤/棉混纺织物(腐绸)低温浸染吸附高温焙烘固着和100℃浸染吸附不焙烘增白工艺中的增白效果。实验结果表明,在低温浸染吸附高温焙烘固着增白工艺中,PS-1具有较理想的增白效果,但在100℃下沸染增白更具有用量少、白度高、不需焙烘、成本低等特点,用量仅为DT的十分之一,是适宜松式加工的针织物和小批量机织物较为理想的增白工艺。本文还对PS-1和DT增白 相似文献
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鹏搏 《精细与专用化学品》1995,(2)
在涤纶增白领域中唯一可以使用的国产荧光增白剂只有增白剂DT,它的年产量到1993年底达到了3500多t。但由于它的荧光强度低、色光偏红、经时耐久性也不甚满意等,它已适应不了我国聚酯纤维及其织物生产发展的需求。 相似文献
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本文探讨了新型涤纶荧光增白剂PS-1在纯涤纶经编织物和涤/棉混纺织物(府绸)低温浸染吸附高温焙烘固着和100℃浸染吸附不焙烘增白工艺中的增白效果。实验结果表明,在低温浸染吸附高温培烘固着增白工艺中,PS-1具有较理想的增白效果,但在100℃下沸染增白更具有用量少、白度高、不需焙烘、成本低等优点,用量仅为DT的十分之一,是适宜松式加工的针织物和小批量机织物较为理想的增白工艺。本文还对PS-1和DT增白效果差异的原因进行了分析。 相似文献
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考察了液体增白剂CBW-04的水溶性、抗硬水性、耐酸碱性、耐光晒性及其同洗衣液的配伍性和对织物的增白性能。结果表明,CBW-04易水溶,溶液透亮且无明显荧光色,具有良好的抗硬水性能,耐酸碱,同洗衣液配伍性好,对织物具有显著的增白功能。 相似文献
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Per S. Stensby 《Journal of the American Oil Chemists' Society》1968,45(7):497-504
Laundering with brightener-free detergents generally restores, but does not improve, the initial whiteness of soiled white
fabrics. Optical brighteners are needed to increase the total spectral radiance, which normally results in better whiteness
and an impression of superior cleanliness. Today's quality detergents therefore contain optical brighteners, often at levels
higher than 0.5%. The outlay for brightener at this level represents a significant portion of the total raw-material cost.
Proper evaluation and selection of brightener systems (1–5) is therefore important. Selection is related to detergent type,
laundry habits, fiber content of the wash load, the hue of white preferred by housewives, and other factors. These factors
tend to change. For example, in recent years, cold-water washing has become more popular in the United States; the capacity
of washing machines has increased; bleach dispensers have been added; more polyamide and polyester, resin-treated cotton and
blended fabrics have been introduced; and improved surfactant/builder systems have been developed for detergents. New brightener
systems have, of necessity, been adopted. Changes will no doubt continue. The detergent industry will consider these changes
carefully and will have to update brightener systems to comply with the new conditions. 相似文献
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线材硫酸盐连续镀锌光亮剂的研究 总被引:3,自引:0,他引:3
线材连续镀锌工艺常用于钢丝的防腐处理。为解决传统工艺中所存在的镀导质量问题,研制出一种专用于线材硫酸盐镀锌的组合光亮剂。该光亮剂由主光亮剂、载体光亮剂和辅助光亮剂。通过赫尔槽试验,电流效率及阴极极化曲线的测量研究了光亮剂的作用效果。结果表明:使用该光亮剂能提高镀液的电流效率,且在很宽的电流密度范围内获得光亮,耐蚀的锌镀层。 相似文献
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研究了提高聚酯(PET)废料纤维白度的规律,讨论了增白剂用量与PET废料纤维白度的关系,增白剂对PET废料熔体流动性以及纤维力学性能的影响。结果表明,增白剂的加入使PET废料熔体粘度增大,纤维的强度降低,伸长率增加,增白剂适宜的加入量为200μg/g。 相似文献
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Poly(ethylene terephthalate) (PET) and PET/montmorillonite(MMT) (2.5 wt %) nanocomposites with high molecular weight were prepared by solid‐state polycondensation and their fiber was spun and drawn under various conditions. The influence of MMT nanomaterials on the thermal shrinkage of PET fiber was investigated and the structure was studied using the methods of WAXD, DSC, fiber orientation measurement, etc. The results showed that the MMT nanomaterials improved the thermal stability of microstructure of PET fiber. The fusion heat of PET/MMT was higher than that of PET, which generally implied the high orientation or high crystallinity. However, the degree of orientation and the crystallinity of PET/MMT fiber measured by WAXD were lower than that of pure PET fiber. It is suggested that the strong interaction between MMT layer and PET restricted the motions of PET molecular chains, which developed “a special continuous network structure” and prohibited the thermal shrinkage of PET fiber. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 96: 2247–2252, 2005 相似文献
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