<p style="text-align: center; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><br></p><p style="text-align: center; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><img src="https://www.dayaotex.com/chtc/demand/img/fuck/1611016436604015341.jpg" style="width: 50%;"><br></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　pH值是纺织品非常重要的质量指标，是GB18401-2010 《国家纺织品基本安全技术规范》的强制执行指标，pH值不合格也是纺织品加工生产贸易过程中最常见的一种质量问题，越来越引起人们的关注，本篇文章就跟大家一起探讨如何进行纺织品pH值的控制。</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　1、pH值的定义：</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　pH值即酸碱度，人体皮肤呈弱酸性，在这种环境条件下可以防止病菌的侵入，因此纺织品的pH值若在微酸或者中性之间就有利于保护人体健康；反之，纺织品pH值过高或过低都会破坏皮肤的平衡和抵抗能力，从而引起皮肤过敏或者诱发感染导致病菌侵入。</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　2、pH值极限值的要求：</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="text-align: center; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><img src="https://www.dayaotex.com/chtc/demand/img/fuck/1611016499043029636.png" style="width: 554px;"><br></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　3、pH异常的来源：</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　主要为纺织品在染整过程中pH控制不够，湿处理后酸中和不充分，或清洗不彻底，容易引起pH异常的染整工序主要是碱减量、涤纶印花水洗、活性印花水洗、棉布的退浆、煮练和丝光等。</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　4、纺织品PH值不同测定方法的比较：</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　（1）、中国标准（GB/T 7573-2009）</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　称取3份2±0.05g试样，将其剪成5×5 mm的小块，放入含有100ml蒸馏水的烧瓶中，摇动烧瓶使试样充分浸湿，将烧瓶放在振荡器上振荡2小时±5min后，在室温下用PH计直接测定水萃取液（不含织物）的PH值，每个样品做3次试验，取第二和第三个试样结果的平均值作为最终结果，精确至0.1。</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　（2）、欧盟标准（EN 1413-1998）</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　称取3份2±0.05g试样，将其剪成5×5 mm的小块，放入含有100ml氯化钾溶液（0.1mol/L）或100ml蒸馏水的烧瓶中，摇动烧瓶使试样充分浸湿，将烧瓶放在振荡器上振荡2小时后，在室温下用PH计直接测定水萃取液（不含织物）的PH值，每个样品做3次试验，取第二和第三个试样结果的平均值作为最终结果，精确至0.1。</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　（3）、日本标准（JIS L 1096-1999）</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　称取5±0.1g试样，将其剪成1×1mm的小块，在50ml蒸馏水煮沸并保持2分钟后，在烧瓶中放入试样，摇动烧瓶使试样充分浸湿，室温下静置30分钟，去除试样，在水萃取液温度达到25±2℃时，用PH计直接测定水萃取液的PH值，精确至0.1。</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　（4）、美国标准（AATCC 81-2001）</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　称取10±0.1g试样，将其剪成小块，在250ml蒸馏水煮沸并保持10分钟后，在烧瓶中放入试样，摇动烧瓶使试样充分浸湿，继续沸煮10分钟，冷却至室温后，去除试样，用PH计直接测定水萃取液的PH值，精确至0.01。</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="text-align: center; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><img src="https://www.dayaotex.com/chtc/demand/img/fuck/1611016526535074291.png" style="width: 576px;"><br></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　不同测定标准下全棉织物水萃取液的PH值：</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="text-align: center; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　</span></font><img src="https://www.dayaotex.com/chtc/demand/img/fuck/1611016625540001034.png" style="width: 571px;"></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　【友情提醒】</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　由以上测试标准和同种试样不同的测试结果可知：要测试必须要有标准要求！</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　问：为什么同一块试样多次测试，结果有差异？</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　答：这可能源于测试仪器，操作及环境的误差，以及测试蒸馏水的误差，因此建议面料商到正规检测机构进行测试。</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　5、纺织品被检出pH不合格如何处理？</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　面料或者成衣检出pH不合格，一般通过酸碱中和的原理重新调节面料的pH。pH不合格大概是偏碱性，可用来调节的酸剂有很多种，最常见的为冰醋酸和柠檬酸两种，冰醋酸具有挥发性且有刺激性气味，柠檬酸调节pH较稳定，因此一般建议使用柠檬酸调节较为合适，但是要注意控制用量，过量会影响手感，还容易引起黄变。</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　举例：如面料测出pH值为9-10，可以调节柠檬酸水溶液的pH值为4-5，而后浸泡10分钟，晾干即可。寄给客户之前送正规检测结构测试确认合格，降低贸易风险。</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　6、pH值的控制方法：</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　只有分析pH值不合格的原因，对症下药，才能有效地减少纺织品pH值不合格率：</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　（1）面料企业加强对相关质控人员的质量意识以及纺织品标准的学习培训工作，正确理解纺织品pH的要求。服装加工企业也要根据服装的自身要求和安全类别选择合适的面、辅料，并提供准确的要求及标准给面料供应商。从源头重视，进行质量把关，才能避免由于pH不合格造成的贸易纠纷。</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　（2）染整企业相关人员应主动学习生态纺织品安全知识，熟悉标准要求，主动重视印染产品内在质量，优化生产工艺，主动提高技术水平。</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;">　　（3）检验机构或企业实验室应严格按照检验标准进行检测，保证检验数据公正准确，避免因操作不当和其他人为因素造成检测数据错误，真正把好产品质量关。</span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p><p style="padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: 24px;"><font color="#2f2d2d" face="Arial, 微软雅黑, Microsoft yahei"><span style="font-size: 16px;"><br></span></font></p>