如何预防酚醛黄变的产生？

蔡海燕 2017-04-12 15957 次浏览 2 个回答

如何预防酚醛黄变的产生？

1. 选用不含BHT的包装材料；

2.避免或减少纺织品对DTNP的吸收；
3. 降低空气中氮氧化物的浓度；
4. 涤纶推荐用VGA抗酚黄变剂，棉推荐用578抗酚黄变剂。

5.使纺织品的pH值保持在酸性范围内。

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一片云 2017-04-27 10:37

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蔡海燕 2017-04-12 17:08

<p class="MsoNormal" align="justify" style="text-align:justify;"> <span><span style="color:#333333;font-size:14px;line-height:2;font-family:'Microsoft YaHei';background-color:#FFFFFF;">抗黄变剂 </span><span style="color:#333333;font-size:14px;line-height:2;font-family:'Microsoft YaHei';background-color:#FFFFFF;">FUNCTEX</span><span style="color:#333333;font-size:14px;line-height:2;font-family:'Microsoft YaHei';background-color:#FFFFFF;">（菲克斯）</span><span style="color:#333333;font-size:14px;line-height:2;font-family:'Microsoft YaHei';background-color:#FFFFFF;">VGA</span><span style="color:#333333;font-size:14px;line-height:2;font-family:'Microsoft YaHei';background-color:#FFFFFF;">，</span><span style="font-size:14px;"></span><span style="font-size:14px;">用于涤纶，锦纶上效果明显好。</span></span> </p> <p class="MsoNormal" align="justify" style="text-align:justify;"> <span><span style="font-size:14px;"> <p class="MsoNormal" style="color:#333333;font-family:宋体;font-size:14px;background-color:#FFFFFF;"> <span style="line-height:2;font-family:'Microsoft YaHei';">◆</span><span style="line-height:2;font-family:'Microsoft YaHei';">应用工艺</span> </p> <p class="MsoNormal" style="color:#333333;font-family:宋体;font-size:14px;background-color:#FFFFFF;"> <span style="line-height:2;font-family:'Microsoft YaHei';">用法用量：</span> </p> <p class="MsoNormal" style="color:#333333;font-family:宋体;font-size:14px;background-color:#FFFFFF;"> <span style="line-height:2;font-family:'Microsoft YaHei';">①</span><span style="line-height:2;font-family:'Microsoft YaHei';">、用于定型：</span> </p> <p class="MsoNormal" style="color:#333333;font-family:宋体;font-size:14px;background-color:#FFFFFF;"> <span style="line-height:2;font-family:'Microsoft YaHei';">在定型机水槽中加入：</span><span style="line-height:2;font-family:'Microsoft YaHei';"> 10g/L-30/L </span><span style="line-height:2;font-family:'Microsoft YaHei';">（处理液</span><span style="line-height:2;font-family:'Microsoft YaHei';">PH</span><span style="line-height:2;font-family:'Microsoft YaHei';">需调整为</span><span style="line-height:2;font-family:'Microsoft YaHei';">5-6</span><span style="line-height:2;font-family:'Microsoft YaHei';">）</span> </p> <p class="MsoNormal" style="color:#333333;font-family:宋体;font-size:14px;background-color:#FFFFFF;"> <span style="line-height:2;font-family:'Microsoft YaHei';">②</span><span style="line-height:2;font-family:'Microsoft YaHei';">、用于后处理：</span> </p> <p class="MsoNormal" style="color:#333333;font-family:宋体;font-size:14px;background-color:#FFFFFF;"> <span style="line-height:2;font-family:'Microsoft YaHei';">锦纶酸性染料染色固色布或荧光漂白布中加入，防止黄变或色相改变，并且赋予较高的耐氯性</span><span style="line-height:2;font-family:'Microsoft YaHei';">.</span> </p> <p class="MsoNormal" style="color:#333333;font-family:宋体;font-size:14px;background-color:#FFFFFF;"> <span style="line-height:2;font-family:'Microsoft YaHei';">参考用量：</span><span style="line-height:2;font-family:'Microsoft YaHei';">0.5-3.0%</span><span style="line-height:2;font-family:'Microsoft YaHei';">（处理液</span><span style="line-height:2;font-family:'Microsoft YaHei';">PH</span><span style="line-height:2;font-family:'Microsoft YaHei';">需调整为</span><span style="line-height:2;font-family:'Microsoft YaHei';">5-6</span><span style="line-height:2;font-family:'Microsoft YaHei';">）</span> </p> <p class="MsoNormal" style="color:#333333;font-family:宋体;font-size:14px;background-color:#FFFFFF;"> <span style="line-height:2;font-family:'Microsoft YaHei';">参考工艺：</span><span style="line-height:2;font-family:'Microsoft YaHei';">70-80℃    </span><span style="line-height:2;font-family:'Microsoft YaHei';">时间：</span><span style="line-height:2;font-family:'Microsoft YaHei';">20</span><span style="line-height:2;font-family:'Microsoft YaHei';">分钟</span> </p> <p class="MsoNormal" style="color:#333333;font-family:宋体;font-size:14px;background-color:#FFFFFF;"> <span style="line-height:2;font-family:'Microsoft YaHei';">♣</span><span style="line-height:2;font-family:'Microsoft YaHei';">用量多少请按织物颜色酌情使用，一般情况下浅色织物比深色织物用量多。</span> </p> <p class="MsoNormal" style="color:#333333;font-family:宋体;font-size:14px;background-color:#FFFFFF;"> <span style="line-height:2;font-family:'Microsoft YaHei';">♣处理液</span><span style="line-height:2;font-family:'Microsoft YaHei';">PH</span><span style="line-height:2;font-family:'Microsoft YaHei';">调整用柠檬酸</span> </p> <br /> </span></span> </p>

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