洗涤用品“花样”多 专家为您支招如何选|边啃奶头边躁狠狠躁A片动漫
从家家户户常用的肥皂、洗衣粉,到近年来越发走俏的洗衣液、洗衣凝珠,以及专治顽固污渍的氧泡泡、爆炸盐,琳琅满目的洗涤用品让人挑得眼花缭乱,到底如何选?来听听专家怎么说。
传统产品“实力强劲” 肥皂作为老牌清洁用品,去污实力不容小觑。南京市质检院高级工程师张玉萍介绍说,肥皂的主要成分是脂肪酸钠盐,对付领口、袖口这类局部重油污时,往往能“一招制敌”。不过它也有个小缺点——“怕硬水”,遇到含有较多可溶性钙镁化合物的水,容易生成皂垢,时间久了可能会让衣物发黄、褪色。凭借“硬核”去污能力占据一席之地的洗衣粉,则主要依靠表面活性剂发挥作用,添加的摩擦剂更是让去油污效果锦上添花,清洗外套、沙发罩、窗帘等大件物品时格外给力。但需要注意的是,洗衣粉碱性较强,手洗时可能会刺激皮肤,对衣物材质也有一定损伤。
“后起之秀”各有千秋 相比之下,洗衣液更显“温和”。它的主要成分也是表面活性剂,不过溶解性能比洗衣粉好得多,溶于水后pH值接近中性,对手部皮肤友好,漂洗起来也更省力。当然,它的去污能力和性价比略逊于洗衣粉。近年来流行的洗衣凝珠专为机洗设计,清洁能力和洗衣液不相上下。但也有使用者吐槽,有时凝珠的膜衣不易溶解,而且用量不好灵活调整,一颗几块钱的价格也让性价比打了折扣。至于氧泡泡、爆炸盐这类“强力选手”,大多添加了过碳酸钠,由于碱性较强,去油、去污、漂白效果都很突出,对付陈年顽固污渍确实“有两下子”。不过张玉萍特别提醒,这类产品效力强劲,可不能用来清洗羊毛、蚕丝等娇贵材质的衣物,以免造成损伤。
按需使用效果更好 在众多洗涤用品中,洗衣粉和洗衣液仍是目前的主流选择。张玉萍结合以往的抽检情况提醒消费者,这两类产品的不合格项目主要集中在总活性物含量和规定污布的去污力两项指标上。总活性物含量指的是衣物洗涤产品中表面活性剂所占的质量百分比,这个数值越高,产品的去污力通常就越强。而去污力是反映洗涤类产品清洁能力的直观指标,如果这项不合格,意味着实际使用时很难有效洗净衣物上的污迹。面对货架上五花八门的洗涤用品,该如何挑选呢?张玉萍建议消费者,在购买洗涤用品时可优先选购知名品牌的产品,同时留心产品信息是否完整,洗衣粉建议选购没有结块的产品,洗衣液的稠度应适中,没有悬浮、沉淀、分层现象。其实不同的洗涤用品各有优缺点,消费者可以根据衣物材质、污渍情况灵活选用,必要时可针对顽固污渍进行预处理。
扬子晚报/紫牛新闻记者 薛玲
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