CN103924437A - Low-temperature activating bleaching agent for textile products, as well as preparation method and application of bleaching agent - Google Patents
Low-temperature activating bleaching agent for textile products, as well as preparation method and application of bleaching agent Download PDFInfo
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- 239000004753 textile Substances 0.000 title claims abstract description 30
- 239000007844 bleaching agent Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 230000003213 activating effect Effects 0.000 title 1
- 238000004061 bleaching Methods 0.000 claims abstract description 44
- 239000004744 fabric Substances 0.000 claims abstract description 19
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 claims abstract description 12
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000004202 carbamide Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 10
- 229920000742 Cotton Polymers 0.000 claims abstract description 8
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 24
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 230000004913 activation Effects 0.000 claims description 9
- 238000005406 washing Methods 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 9
- 239000007788 liquid Substances 0.000 claims 3
- 238000001816 cooling Methods 0.000 claims 2
- 239000001488 sodium phosphate Substances 0.000 claims 2
- 229910000162 sodium phosphate Inorganic materials 0.000 claims 2
- 239000013638 trimer Substances 0.000 claims 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims 2
- 238000010792 warming Methods 0.000 claims 1
- 235000019832 sodium triphosphate Nutrition 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000004043 dyeing Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 4
- 238000009897 hydrogen peroxide bleaching Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 235000011121 sodium hydroxide Nutrition 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000012190 activator Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000009172 bursting Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- FRPJTGXMTIIFIT-UHFFFAOYSA-N tetraacetylethylenediamine Chemical compound CC(=O)C(N)(C(C)=O)C(N)(C(C)=O)C(C)=O FRPJTGXMTIIFIT-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- BCGWQIRAHVHFEQ-UHFFFAOYSA-N benzenesulfonyl nonanoate;sodium Chemical compound [Na].CCCCCCCCC(=O)OS(=O)(=O)C1=CC=CC=C1 BCGWQIRAHVHFEQ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000001589 carboacyl group Chemical group 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 150000002697 manganese compounds Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XQIJIALOJPIKGX-UHFFFAOYSA-N naphthalene 1,2-oxide Chemical group C1=CC=C2C3OC3C=CC2=C1 XQIJIALOJPIKGX-UHFFFAOYSA-N 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 239000012224 working solution Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
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Abstract
本发明提供了用于纺织品低温活化漂白剂及其制备方法和应用。所述的用于纺织品低温活化漂白剂，其特征在于，由氨基氰60～80wt％、尿素10～20wt％和三聚磷酸钠10～20wt％组成。本发明还提供一种低温活化漂白剂用于棉织物的间歇式漂白方法，该方法简单，成本低，生产效率高，环保节能，适合于工业化使用，在达到良好漂白效果的前提下，降低漂白温度，减少织物损伤。The invention provides a low-temperature activated bleaching agent for textiles, a preparation method and application thereof. The low-temperature activated bleaching agent for textiles is characterized in that it consists of 60-80 wt% of cyanamide, 10-20 wt% of urea and 10-20 wt% of sodium tripolyphosphate. The invention also provides an intermittent bleaching method for cotton fabrics with a low-temperature activated bleaching agent. The method is simple, low in cost, high in production efficiency, environmentally friendly and energy-saving, and is suitable for industrial use. On the premise of achieving a good bleaching effect, it can reduce bleaching temperature, reducing fabric damage.
Description
技术领域technical field
本发明涉及一种用于纺织品低温活化漂白剂及其制备方法和应用。The invention relates to a low-temperature activated bleaching agent for textiles, a preparation method and application thereof.
背景技术Background technique
目前从我国经济发展的重要战略而言，低碳经济作为转变经济发展的重要方式正贯穿于整个纺织行业，它是以低消耗、低污染和低排放的理念为基础，以节约能源技术和减少排放技术的革新为核心的。纺织品在染整加工过程中的气体排放、水资源消耗、能源消耗等是行业最终对产品环境影响综合评定的最根本依据。目前国际上已经有一些强制或是自愿性的法规或市场限制，例如要求产品标识碳足迹等信息。因此，对于整个染整行业可持续发展的基本原则之一就是“减量法则”，就是要求用最少的资源消耗获得最大的产品功能。而对于当前的染整企业，进行低碳染整的直接好处不仅仅是提高了产品的环境价值，而且降低了能耗、物耗和排放，即也就是降低了生产成本。At present, from the perspective of the important strategy of my country's economic development, low-carbon economy is running through the entire textile industry as an important way to transform economic development. The innovation of emission technology is the core. Gas emissions, water resource consumption, and energy consumption during the dyeing and finishing process of textiles are the most fundamental basis for the industry's final comprehensive assessment of product environmental impact. At present, there are already some mandatory or voluntary regulations or market restrictions in the world, such as requiring information such as product labeling carbon footprint. Therefore, one of the basic principles for the sustainable development of the entire dyeing and finishing industry is the "law of reduction", which is to obtain the maximum product function with the least resource consumption. For the current dyeing and finishing enterprises, the direct benefit of low-carbon dyeing and finishing is not only to increase the environmental value of products, but also to reduce energy consumption, material consumption and emissions, that is, to reduce production costs.
通常棉纤维的漂白前处理采用双氧水漂白方法，其具有漂白效果较好、白度稳定性良好、污染少、不腐蚀设备等优点。双氧水漂白的基本机理是：H2O2分解后会生成漂白的有效成分HOO-，分解公式为：H2O2→HOO-+H+。根据化学反应平衡原理，漂白工作液中加入一定量烧碱，能中和H+，促进HOO-的生成。同时，传统双氧水漂白方法中常常需加入双氧水稳定剂来控制由于重金属离子催化作用而导致的双氧水无效地被分解。所谓低温漂白前处理是指在常规的前处理方法中采用特殊的氧漂活化剂，改善双氧水的有效分解率，从而提高双氧水的利用率，并且使漂白温度降低到70℃左右，在不影响织物白度的同时，降低织物纤维的损伤和失重等问题。Usually, the bleaching pretreatment of cotton fiber adopts hydrogen peroxide bleaching method, which has the advantages of better bleaching effect, good whiteness stability, less pollution, and no corrosion of equipment. The basic mechanism of hydrogen peroxide bleaching is: after H 2 O 2 is decomposed, it will generate HOO - , the active ingredient for bleaching. The decomposition formula is: H 2 O 2 →HOO - +H + . According to the principle of chemical reaction balance, a certain amount of caustic soda is added to the bleaching working solution, which can neutralize H+ and promote the formation of HOO-. At the same time, in the traditional hydrogen peroxide bleaching method, it is often necessary to add a hydrogen peroxide stabilizer to control the ineffective decomposition of hydrogen peroxide caused by the catalysis of heavy metal ions. The so-called low-temperature bleaching pretreatment refers to the use of a special oxygen bleaching activator in the conventional pretreatment method to improve the effective decomposition rate of hydrogen peroxide, thereby increasing the utilization rate of hydrogen peroxide, and reducing the bleaching temperature to about 70 °C without affecting the fabric. While improving the whiteness, it reduces the damage and weight loss of fabric fibers.
目前研究开发的双氧水活化剂体系主要包括：有烷酰基类化合物、酰胺基类化合物、氧化杂萘结构类和有机锰化合物等。市场上已经产业化的产品主要是四乙酰基乙二胺(TAED)和壬酰基苯磺酸钠(NOBS)，这二类化合物在欧美洗涤剂产品中得到了广泛的应用，但是在纺织品双氧水漂泊前处理中的应用中始终不是很成熟。The current research and development of hydrogen peroxide activator system mainly includes: alkanoyl compounds, amido compounds, naphthalene oxide structures and organic manganese compounds. The products that have been industrialized in the market are mainly tetraacetylethylenediamine (TAED) and sodium nonanoylbenzenesulfonate (NOBS). The application in pre-processing is not very mature.
发明内容Contents of the invention
本发明的目的是提供一种具有良好漂白效果的用于纺织品低温活化漂白剂及其制备方法和应用。The object of the present invention is to provide a low-temperature activated bleaching agent for textiles with good bleaching effect and its preparation method and application.
为了达到上述目的，本发明提供了一种用于纺织品低温活化漂白剂，其特征在于，由氨基氰60～80wt％、尿素10～20wt％和三聚磷酸钠10～20wt％组成。In order to achieve the above object, the present invention provides a low-temperature activated bleaching agent for textiles, which is characterized in that it consists of 60-80 wt% cyanamide, 10-20 wt% urea and 10-20 wt% sodium tripolyphosphate.
优选地，所述的用于纺织品低温活化漂白剂的活化温度为70-85℃。Preferably, the activation temperature of the low-temperature activated bleaching agent for textiles is 70-85°C.
本发明还提供了上述的用于纺织品低温活化漂白剂的制备方法，其特征在于，具体步骤包括：将氨基氰、尿素和三聚磷酸钠按比例混合成均匀粉末，即得用于纺织品低温活化漂白剂。The present invention also provides the above-mentioned preparation method for low-temperature activation of textile bleaching agent, which is characterized in that the specific steps include: mixing cyanamide, urea and sodium tripolyphosphate in proportion to form a uniform powder, which can be used for low-temperature activation of textiles. bleach.
本发明还提供了上述的用于纺织品低温活化漂白剂的间歇式漂白方法，其特征在于，具体步骤包括：The present invention also provides the above-mentioned intermittent bleaching method for low-temperature activated bleaching agent for textiles, characterized in that the specific steps include:
第一步：配制漂白液，所述的漂白液中低温活化漂白剂的浓度为1-5g/L，氢氧化钠的浓度为2-6g/L，双氧水的浓度为6-15g/L；The first step: preparing bleaching solution, the concentration of low-temperature activated bleaching agent in the bleaching solution is 1-5g/L, the concentration of sodium hydroxide is 2-6g/L, and the concentration of hydrogen peroxide is 6-15g/L;
第二步：将棉织物按照浴比1∶10放入第一步所得的漂白液中，升温至70-85℃，漂白45-80min，然后降温水洗。The second step: put the cotton fabric into the bleaching solution obtained in the first step according to the bath ratio of 1:10, raise the temperature to 70-85° C., bleach for 45-80 minutes, and then lower the temperature and wash it with water.
优选地，所述第一步中的双氧水的质量分数为35％。Preferably, the mass fraction of hydrogen peroxide in the first step is 35%.
优选地，所述的棉织物为针织物或梭织物。Preferably, the cotton fabric is knitted fabric or woven fabric.
优选地，所述的降温水洗为先用50-60℃洗，再用室温水洗。Preferably, the cooling water washing is first washing at 50-60°C, and then washing with room temperature water.
本发明中用于纺织品低温活化漂白剂的主要成分为氨基氰和尿素，在低温漂白时起到催化加速双氧水分解的作用。辅助成分为三聚磷酸钠，用于低温漂白时软化水。The main components of the low-temperature activated bleaching agent for textiles in the present invention are cyanamide and urea, which can catalyze and accelerate the decomposition of hydrogen peroxide during low-temperature bleaching. The auxiliary ingredient is sodium tripolyphosphate, which is used to soften water during low-temperature bleaching.
与现有技术相比，本发明的有益效果是：Compared with prior art, the beneficial effect of the present invention is:
1)本发明的低温活化漂白剂用于棉织物的间歇式漂白方法简单，成本低，生产效率高，环保节能，适合于工业化使用。1) The low-temperature activated bleaching agent of the present invention is used in an intermittent bleaching method for cotton fabrics, which has the advantages of simple, low cost, high production efficiency, environmental protection and energy saving, and is suitable for industrialized use.
2)本发明的低温活化漂白剂，达到纺织品漂白的效果，与传统高温双氧水漂白方法相比较，在达到良好漂白效果的前提下，将漂白温度从100℃降低至80℃以下，减少织物损伤，对印染业的生态环保、节能降耗具有显著意义。2) The low-temperature activated bleaching agent of the present invention achieves the effect of textile bleaching. Compared with the traditional high-temperature hydrogen peroxide bleaching method, under the premise of achieving a good bleaching effect, the bleaching temperature is reduced from 100°C to below 80°C, reducing fabric damage. It is of great significance to the eco-environmental protection, energy saving and consumption reduction of the printing and dyeing industry.
具体实施方式Detailed ways
下面结合具体实施例，进一步阐述本发明。应理解，这些实施例仅用于说明本发明而不用于限制本发明的范围。此外应理解，在阅读了本发明讲授的内容之后，本领域技术人员可以对本发明作各种改动或修改，这些等价形式同样落于本申请所附权利要求书所限定的范围。Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.
实施例1Example 1
一种用于纺织品低温活化漂白剂，由氨基氰70wt％、尿素10wt％和三聚磷酸钠10wt％组成。其制备方法为：将70g氨基氰和15g尿素和15g三聚磷酸钠混合均匀，即得用于纺织品低温活化漂白剂，其活化温度为70-85℃。A low-temperature activated bleaching agent for textiles, which consists of cyanamide 70wt%, urea 10wt% and sodium tripolyphosphate 10wt%. The preparation method is as follows: uniformly mix 70g of cyanamide, 15g of urea and 15g of sodium tripolyphosphate to obtain a low-temperature activation bleaching agent for textiles, and the activation temperature is 70-85°C.
实施例2Example 2
一种用于纺织品低温活化漂白剂，由氨基氰75wt％、尿素10wt％和三聚磷酸钠15wt％组成。其制备方法为：将75g氨基氰和10g尿素和15g三聚磷酸钠混合均匀，即得用于纺织品低温活化漂白剂，其活化温度为70-85℃。A low-temperature activated bleaching agent for textiles, which consists of 75% by weight of cyanamide, 10% by weight of urea and 15% by weight of sodium tripolyphosphate. The preparation method is as follows: uniformly mix 75g of cyanamide, 10g of urea and 15g of sodium tripolyphosphate to obtain a low-temperature activation bleaching agent for textiles, and the activation temperature is 70-85°C.
实施例3Example 3
一种用于纺织品低温活化漂白剂，由氨基氰80wt％、尿素10wt％和三聚磷酸钠10wt％组成。其制备方法为：将80g氨基氰和10g尿素和10g三聚磷酸钠混合均匀，即得用于纺织品低温活化漂白剂，其活化温度为70-85℃。A low-temperature activated bleaching agent for textiles, which consists of 80 wt% of cyanamide, 10 wt% of urea and 10 wt% of sodium tripolyphosphate. The preparation method is as follows: mix 80g of cyanamide, 10g of urea and 10g of sodium tripolyphosphate evenly to obtain a low-temperature activated bleaching agent for textiles, and the activation temperature is 70-85°C.
实施例4Example 4
一种间歇式漂白方法，具体步骤为：将实施例1-3中的低温活化漂白剂、氢氧化钠和双氧水加入水中配制漂白液，所述的漂白液中低温活化漂白剂、氢氧化钠以及双氧水的浓度见表1；先将全棉28tex(21s)毛圈坯布加入到溢流染机，然后将漂白液加入，以1℃/分钟的速率缓慢升温至75℃进行氧漂，保温漂白45分钟，然后降温到40℃，排水，然后50℃水洗，用25％的醋酸中和，50℃热水洗，冷水(室温)洗，烘干。A batch bleaching method, the specific steps are: adding the low-temperature activated bleaching agent, sodium hydroxide and hydrogen peroxide in the embodiment 1-3 into water to prepare a bleaching solution, in the described bleaching solution, the low-temperature activated bleaching agent, sodium hydroxide and The concentration of hydrogen peroxide is shown in Table 1; first add the cotton 28tex (21s) terry gray cloth to the overflow dyeing machine, then add the bleaching solution, slowly raise the temperature to 75°C at a rate of 1°C/min for oxygen bleaching, and keep warm for 45°C. Minutes, then cool down to 40°C, drain, then wash with water at 50°C, neutralize with 25% acetic acid, wash with hot water at 50°C, wash with cold water (room temperature), and dry.
织物的白度测试：采用美国德塔颜色公司DATACOLOR750型测色配色仪对织物白度进行测试，根据GB8425-87纺织品仪器白度的评定方法，试样折叠4层，不同点各测4次。测试结果见表1。Whiteness test of fabrics: The whiteness of fabrics is tested by DATACOLOR750 color measuring and matching instrument of American Delta Color Company. According to the evaluation method of whiteness of textile instruments in GB8425-87, the sample is folded into 4 layers, and each point is measured 4 times. The test results are shown in Table 1.
织物的强力测试：利用YG(B)0260D-500型断裂强力仪对织物进行顶破强力测试。测试结果见表1。Fabric strength test: use YG(B)0260D-500 breaking strength tester to test the bursting strength of the fabric. The test results are shown in Table 1.
表1实施例漂白液组成及漂白后织物性能对比Table 1 embodiment bleach composition and fabric performance comparison after bleaching
注：原坯布的顶破强力为481.2NNote: The bursting strength of the original gray cloth is 481.2N
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106367943A (en) * | 2016-09-16 | 2017-02-01 | 淄博鲁瑞精细化工有限公司 | Preparation method of low-temperature hydrogen peroxide activating agent |
| CN115074988A (en) * | 2022-06-29 | 2022-09-20 | 江西给力纺织有限公司 | Waste cloth leftover material fading treatment method |
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| CN115074988A (en) * | 2022-06-29 | 2022-09-20 | 江西给力纺织有限公司 | Waste cloth leftover material fading treatment method |
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