CN103046316A - Method for finishing environment-friendly flame-retardant waterproof coating fabric - Google Patents
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Abstract
本发明公开了一种环保阻燃防水涂层织物的整理方法，其方法包括涤纶织物准备、前拒水、涂层整理、后拒水和成品步骤。本发明所用的阻燃剂为层状阴离子无机镁铝水滑石，其兼有氢氧化镁和氢氧化铝类似的结构和组成，受热分解时释放出大量的水和二氧化碳，同时吸收大量的热，降低了燃烧体系的温度；分解释放出的水蒸汽和二氧化碳气体，具有稀释、阻隔可燃性气体的作用；热分解生成的铝镁氧化物与高分子材料燃烧时形成的碳化物，在材料表面形成保护膜，从而阻隔了氧的进一步侵入，起到阻燃效果。水滑石粒子分解后的固体产物具有很大的比表面积，很强的碱性，能及时吸收材料热分解时释放的酸性气体和烟雾，从而起到抑烟和消烟的作用。The invention discloses a finishing method of an environment-friendly flame-retardant and waterproof coated fabric. The method comprises the steps of polyester fabric preparation, pre-water repellency, coating finishing, post-water repellency and finished product. The flame retardant used in the present invention is a layered anionic inorganic magnesium aluminum hydrotalcite, which has a similar structure and composition of magnesium hydroxide and aluminum hydroxide. When it is thermally decomposed, it releases a large amount of water and carbon dioxide, and absorbs a large amount of heat at the same time. The temperature of the combustion system is reduced; the water vapor and carbon dioxide gas released by decomposition have the effect of diluting and blocking flammable gases; the aluminum-magnesium oxide generated by thermal decomposition and the carbide formed when the polymer material is burned form on the surface of the material The protective film blocks the further intrusion of oxygen and plays a flame retardant effect. The solid product after the decomposition of hydrotalcite particles has a large specific surface area and strong alkalinity, which can absorb the acid gas and smoke released during the thermal decomposition of the material in time, thus playing the role of suppressing and eliminating smoke.
Description
技术领域 technical field
本发明属于纺织品后整理领域，涉及一种环保阻燃防水涂层织物的整理方法。 The invention belongs to the field of finishing of textiles, and relates to a finishing method of an environment-friendly flame-retardant and waterproof coated fabric.
背景技术 Background technique
涂层整理是在织物表面均匀地涂敷一层或多层高分子物质，赋予织物某种功能的一种表面加工技术，涂层整理以其生产成本低、操作方便、不影响织物原有性能，且可改变织物的外观、风格和增加织物的功能，而得到国内外的高度重视和快速发展。 Coating finishing is a surface processing technology that evenly coats one or more layers of polymer substances on the surface of the fabric to endow the fabric with certain functions. Coating finishing is characterized by low production cost, convenient operation, and does not affect the original performance of the fabric. , and can change the appearance and style of the fabric and increase the function of the fabric, and has been highly valued and developed rapidly at home and abroad.
涂层剂赋予了涂层织物防水性能，按剂型分为溶剂型和水分散型。溶剂型的成膜温度较低、成膜性好、附着力强、耐水性佳，但在使用时产生大量的有机溶剂，对环境造成严重污染，因此其使用越来越受到限制；水分散型涂层剂以其环保性，越来越得到重视。 The coating agent endows the coated fabric with waterproof performance, and is divided into solvent type and water dispersion type according to the dosage form. Solvent-type has low film-forming temperature, good film-forming property, strong adhesion, and good water resistance, but it produces a large amount of organic solvents during use, causing serious pollution to the environment, so its use is increasingly restricted; water-dispersed type Coating agents are getting more and more attention because of their environmental protection.
拒水整理也可以赋予织物一定的防水效果。纺织品涂层拒水整理分为涂层前拒水和涂层后拒水，涂层前拒水可防止涂层剂渗入织物内部，影响涂层膜连续性，导致耐水压下降，并可防止涂层织物手感僵硬；后拒水可以赋予织物拒水性（抗湿性），且有利于耐水压的进一步提高，但拒水整理往往又会提高织物的可燃性。因此赋予防水涂层织物阻燃功能，对于使用者的生命财产安全有着十分重要的意义。同时随着人们对健康、环保意识的增强，及欧盟对阻燃纺织产品环保性的要求，对纺织品进行环保型阻燃整理具有重要的现实意义。 Water-repellent finishing can also give the fabric a certain waterproof effect. Textile coating water repellency finishing is divided into water repellency before coating and water repellency after coating. Water repellency before coating can prevent coating agent from penetrating into the fabric, affecting the continuity of coating film, resulting in a drop in water pressure resistance, and preventing coating The first layer of fabric feels stiff; post-water repellency can endow the fabric with water repellency (moisture resistance), and is conducive to the further improvement of water pressure resistance, but water repellent finishing often increases the flammability of the fabric. Therefore, endowing the waterproof coating fabric with a flame-retardant function is of great significance to the safety of users' lives and property. At the same time, with the enhancement of people's awareness of health and environmental protection, and the EU's requirements for the environmental protection of flame-retardant textile products, it is of great practical significance to carry out environmentally friendly flame-retardant finishing of textiles.
涂层整理法实现阻燃可以通过使用阻燃涂层剂或在普通涂层剂中添加阻燃剂来进行。 The flame retardant can be achieved by using a flame retardant coating agent or adding a flame retardant to a common coating agent.
目前环保型阻燃剂主要为无机类和环保型有机磷氮系，无机类应用较广的为氧化镁、氧化铝、氢氧化镁、氢氧化铝等，与涂层剂相容性好，但需要的添加量大，对织物的物理性能影响较大；环保型有机类以磷氮系较多，但能与涂层剂较好相容的产品较少，因此对织物进行环保阻燃涂层整理存在较大困难。 At present, the environment-friendly flame retardants are mainly inorganic and environment-friendly organophosphorus-nitrogen series. The widely used inorganic types are magnesium oxide, aluminum oxide, magnesium hydroxide, aluminum hydroxide, etc., which have good compatibility with coating agents, but The amount of addition required is large, which has a great impact on the physical properties of the fabric; more environmentally friendly organics are based on phosphorus and nitrogen, but there are fewer products that are better compatible with coating agents. Therefore, environmentally friendly flame-retardant coatings are applied to fabrics Sorting is difficult.
发明内容 Contents of the invention
为克服以上环保型阻燃涂层整理存在的问题，本发明提供一种相容性好、分散均匀、阻燃剂用量少，阻燃效果好、手感佳，断裂强力优良，无游离甲醛释放的环保阻燃防水涂层织物的整理方法。 In order to overcome the problems of the above environment-friendly flame retardant coating finishing, the present invention provides a coating with good compatibility, uniform dispersion, less amount of flame retardant, good flame retardant effect, good hand feeling, excellent breaking strength, and no release of free formaldehyde. The finishing method of the environmentally friendly flame-retardant waterproof coated fabric.
本发明是通过以下技术方案来实现的：一种环保阻燃防水涂层织物的整理方法，该方法包括如下步骤： The present invention is achieved through the following technical solutions: a method for finishing an environmentally friendly flame-retardant waterproof coated fabric, the method comprising the following steps:
（1）涤纶织物准备； (1) Polyester fabric preparation ;
（2）前拒水：将拒水剂与水混合制成拒水处理剂，拒水剂用量10g/L～50g/L，采用浸轧工艺，轧液率40%～70%，焙烘温度160℃～180℃，时间20s～60s； (2) Front water repellency: Mix the water repellent agent with water to make a water repellent treatment agent. The dosage of the water repellent agent is 10g/L-50g/L. The padding process is adopted. The liquid rolling rate is 40%-70%. 160℃～180℃, time 20s～60s;
（3）涂层整理：将100份涂层剂、2份交联剂和5-10份阻燃剂混合后搅拌均匀，制得环保阻燃涂层剂；用环保阻燃涂层剂进行干法直接涂层，涂层干重8g/m2～20g/m2，焙烘温度160℃～180℃，时间40s～90s； (3) Coating finishing: Mix 100 parts of coating agent, 2 parts of crosslinking agent and 5-10 parts of flame retardant and stir evenly to obtain an environmentally friendly flame retardant coating agent; dry with an environmentally friendly flame retardant coating agent Direct coating by method, coating dry weight 8g/m 2 ～20g/m 2 , baking temperature 160℃～180℃, time 40s～90s;
（4）后拒水：将拒水剂与水混合制成拒水处理剂，拒水剂用量10g/L～50g/L，采用浸轧工艺，轧液率40%～70%，焙烘温度160℃～180℃，时间20s～60s；实现涤纶织物的环保阻燃防水涂层整理。 (4) Post-water repellency: Mix the water repellent agent with water to make a water repellent treatment agent. The dosage of the water repellent agent is 10g/L-50g/L. The padding process is adopted. The liquid rolling rate is 40%-70%. 160°C~180°C, time 20s~60s; realize the environmental protection, flame retardant and waterproof coating finishing of polyester fabrics.
进一步地，所述拒水剂为氟系拒水剂；所述阻燃剂为层状阴离子无机镁铝水滑石；所述涂层剂为水性PA涂层剂或水性PU涂层剂。 Further, the water-repellent agent is a fluorine-based water-repellent agent; the flame retardant is a layered anionic inorganic magnesium-aluminum hydrotalcite; and the coating agent is a water-based PA coating agent or a water-based PU coating agent.
本发明的有益效果是，应用本发明的方法实现环保阻燃防水涂层整理的涤纶织物。其阻燃性达到国家标准B1级要求，耐水压430mmH2O，且手感较好，断裂强力有所增加，无游离甲醛的释放。 The beneficial effect of the present invention is that the method of the present invention is applied to realize the polyester fabric finished with the environment-friendly flame-retardant waterproof coating. Its flame retardancy meets the requirements of the national standard B1 level, water pressure resistance is 430mmH 2 O, and it feels good, the breaking strength has increased, and there is no release of free formaldehyde.
具体实施方式 Detailed ways
本发明环保阻燃防水涂层织物的整理方法，包括如下步骤： The finishing method of the environmental protection flame retardant waterproof coating fabric of the present invention comprises the following steps:
1、涤纶织物准备。 1. Polyester fabric preparation .
2、前拒水：将拒水剂与水混合制成拒水处理剂，拒水剂用量10g/L～50g/L，采用浸轧工艺，轧液率40%～70%，焙烘温度160℃～180℃，时间20s～60s。 2. Front water repellency: Mix the water repellent agent with water to make a water repellent treatment agent. The dosage of the water repellent agent is 10g/L-50g/L. The padding process is adopted, the liquid rolling rate is 40%-70%, and the baking temperature is 160 ℃～180℃, time 20s～60s.
3、涂层整理：将100份涂层剂、2份交联剂和5-10份阻燃剂混合后搅拌均匀，制得环保阻燃涂层剂。用环保阻燃涂层剂进行干法直接涂层，涂层干重8g/m2～20g/m2，焙烘温度160℃～180℃，时间40s～90s。 3. Coating finishing: Mix 100 parts of coating agent, 2 parts of crosslinking agent and 5-10 parts of flame retardant and stir evenly to obtain an environmentally friendly flame retardant coating agent. Use an environmentally friendly flame retardant coating agent for dry direct coating, the dry weight of the coating is 8g/m 2 to 20g/m 2 , the baking temperature is 160°C to 180°C, and the time is 40s to 90s.
4、后拒水：将拒水剂与水混合制成拒水处理剂，拒水剂用量10g/L～50g/L，采用浸轧工艺，轧液率40%～70%，焙烘温度160℃～180℃，时间20s～60s。实现涤纶织物的环保阻燃防水涂层整理。 4. Post-water repellency: Mix the water repellent agent with water to make a water repellent treatment agent. The dosage of the water repellent agent is 10g/L-50g/L. The padding process is adopted, the liquid rolling rate is 40%-70%, and the baking temperature is 160 ℃～180℃, time 20s～60s. Realize the environmentally friendly flame-retardant waterproof coating finishing of polyester fabrics.
步骤（1）和（3）所用拒水剂为氟系拒水整理剂，用量10g/L～50g/L。 The water-repellent agent used in steps (1) and (3) is a fluorine-based water-repellent finishing agent, and the dosage is 10g/L-50g/L.
步骤（2）所用涂层剂为水性PA涂层剂或水性PU涂层剂。 The coating agent used in step (2) is a water-based PA coating agent or a water-based PU coating agent.
步骤（2）所用阻燃剂为层状阴离子无机镁铝水滑石。 The flame retardant used in step (2) is layered anionic inorganic magnesium aluminum hydrotalcite.
本发明用于涤纶织物的环保阻燃防水涂层整理。本发明所用的阻燃剂为层状阴离子无机镁铝水滑石，其兼有氢氧化镁和氢氧化铝类似的结构和组成，受热分解时释放出大量的水和二氧化碳，同时吸收大量的热，降低了燃烧体系的温度；分解释放出的水蒸汽和二氧化碳气体，具有稀释、阻隔可燃性气体的作用；热分解生成的铝镁氧化物与高分子材料燃烧时形成的碳化物，在材料表面形成保护膜，从而阻隔了氧的进一步侵入，起到阻燃效果。水滑石粒子分解后的固体产物具有很大的比表面积，很强的碱性，能及时吸收材料热分解时释放的酸性气体和烟雾，从而起到抑烟和消烟的作用。 The present invention is used for the finishing of the environmentally friendly flame-retardant waterproof coating of polyester fabrics. The flame retardant used in the present invention is a layered anionic inorganic magnesium aluminum hydrotalcite, which has a similar structure and composition of magnesium hydroxide and aluminum hydroxide. When it is thermally decomposed, it releases a large amount of water and carbon dioxide, and absorbs a large amount of heat at the same time. The temperature of the combustion system is reduced; the water vapor and carbon dioxide gas released by decomposition have the effect of diluting and blocking flammable gases; the aluminum-magnesium oxide generated by thermal decomposition and the carbide formed when the polymer material is burned form on the surface of the material The protective film blocks the further intrusion of oxygen and plays a flame retardant effect. The solid product after the decomposition of hydrotalcite particles has a large specific surface area and strong alkalinity, which can absorb the acid gas and smoke released during the thermal decomposition of the material in time, thus playing the role of suppressing and eliminating smoke.
本发明阻燃效果的测定和评价是按照GB/T 5456一1997《纺织品 燃烧性能 垂直方向试样火焰蔓延性能的测定》。 The determination and evaluation of the flame retardant effect of the present invention is in accordance with GB/T 5456-1997 "Textile Combustion Performance Determination of Flame Spread Performance of Samples in the Vertical Direction".
耐水压按照GB/T 4744一1997《纺织织物 抗渗水性测定静水压试验》采用下面施加水压，上升速度6.0kPa/min士0.3kPa/min进行测试。 Water pressure resistance is tested according to GB/T 4744-1997 "Determination of Water Resistance of Textile Fabrics by Hydrostatic Pressure Test" by applying water pressure below and rising speed of 6.0kPa/min±0.3kPa/min.
通过上述工艺处理后所制得的环保阻燃防水涂层整理织物与防水涂层整理织物（工艺条件和配方与实施1例的相同）的物理性能对比见表1。 The comparison of physical properties between the environmentally friendly flame-retardant waterproof coating finishing fabric and the waterproof coating finishing fabric (the process conditions and formula are the same as those in Example 1) obtained after the above-mentioned process is shown in Table 1.
表1:防水涂层织物和环保阻燃防水涂层织物的物理性能Table 1: Physical properties of waterproof coated fabric and environmentally friendly flame retardant waterproof coated fabric
注：耐水压的测定按照GB/T 4744一1997《纺织织物 抗渗水性测定静水压试验》采用下面施加水压，上升速度6.0kPa/min士0.3kPa/min进行测试；阻燃性按照GB/T 5456一1997《纺织品 燃烧性能 垂直方向试样火焰蔓延性能的测定》进行测试和评价；白度通过WSD-3C全自动白度仪测定；硬度、光滑度、柔软度通过Nucybertek Phabromet织物风格仪测定；断裂强力通过YG065H电子织物强力机测定；甲醛含量的测定按照GB/T 2912.1一1998《纺织品 甲醛的测定》进行测试。 Note: The determination of water pressure resistance is carried out in accordance with GB/T 4744-1997 "Determination of Water Resistance of Textile Fabrics by Hydrostatic Pressure Test" by applying water pressure below, and the rising speed is 6.0kPa/min±0.3kPa/min; the flame retardancy is tested according to GB /T 5456-1997 "Textile Combustion Performance Determination of Flame Spread Performance of Samples in Vertical Direction" for testing and evaluation; whiteness is measured by WSD-3C automatic whiteness meter; hardness, smoothness and softness are tested by Nucybertek Phabromet fabric style meter Determination; breaking strength is measured by YG065H electronic fabric strength tester; formaldehyde content is tested according to GB/T 2912.1-1998 "Determination of Formaldehyde in Textiles".
从表1中可以发现，环保阻燃剂的添加对防水涂层织物的白度、硬度、光滑度、柔软度基本没有影响，断裂强力、耐水压有所提高，阻燃性达到了国家标准B1级要求，未检测出游离甲醛，因此该阻燃防水涂层整理方法对织物物理性能基本没有损伤。 It can be found from Table 1 that the addition of environmentally friendly flame retardants has basically no effect on the whiteness, hardness, smoothness, and softness of waterproof coated fabrics, and the breaking strength and water pressure resistance have improved, and the flame retardancy has reached the national standard B1 Grade requirements, free formaldehyde has not been detected, so the flame retardant waterproof coating finishing method has basically no damage to the physical properties of the fabric.
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| CN106795666A (en) * | 2014-10-16 | 2017-05-31 | 帝人株式会社 | Cloth and silk and its manufacture method and fibre |
| CN105297180A (en) * | 2015-11-13 | 2016-02-03 | 昆山华阳新材料股份有限公司 | Manufacturing process of PET/PTT composite fiber |
| CN106222786A (en) * | 2016-07-27 | 2016-12-14 | 长兴县金欣服装辅料有限责任公司 | A kind of terylene lining cloth of high Memorability and preparation method thereof |
| CN106245145A (en) * | 2016-07-27 | 2016-12-21 | 长兴县金欣服装辅料有限责任公司 | A kind of flame-resistant terylene lining cloth and preparation method thereof |
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| CN110306336A (en) * | 2019-06-26 | 2019-10-08 | 东莞职业技术学院 | A kind of production technology of flame retardant knitted cloth |
| CN111593581A (en) * | 2020-05-29 | 2020-08-28 | 江苏万邦特种纺织发展有限公司 | Novel high-strength waterproof cloth |
| CN113061359A (en) * | 2021-03-26 | 2021-07-02 | 任义 | Fireproof flame-retardant wall coating and preparation method and application thereof |
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