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    August 02

    陶瓷餐具面面观 看听比试精明选购

    陶瓷餐具面面观 看听比试精明选购看、听、比、试
      
        “看”就是要将瓷器上下内外细细观察一遍。一看瓷器釉面是否光洁润滑,有无擦伤、小孔、黑点和气泡;二看形状是否规整,有无变形;三看画面有无损缺;四看底部是否平整,须放置平稳,无毛刺。
      
        “听”就是听轻轻弹叩瓷器时发出的声音。如声音清脆、悦耳,则说明瓷胎细致密实,无裂损,在高温烧成时,瓷化完全。如声音喑哑,就可断定瓷胎有裂损,或者瓷化不完全,这类瓷器经冷热变化,易开裂。
      
        “比”就是比较。对配套瓷器,要比较各配件,看其造型及画面装饰是否协调一致。尤其是成套的青花或青花玲珑瓷,因为青花成色随烧成温度不同而发生变化,所以同是青花瓷,颜色有深有浅,一套几件乃至数十件的成套冷瓷器,如各件青花成色有明显差异,这套瓷器就大为逊色了。
      
        “试”就是试盖、试装、试验。有的瓷器带盖子,有的瓷器由几个元件组合而成,在挑选瓷器时,别忘了将盖子试盖一下,将元件试组装一下,看看是否合适。另外,有的瓷器具有特殊功能,如滴水观音,能自动滴水;九龙公道杯,酒斟满到某一位置,会全部漏光。所以要试验一下,看其功能是否正常。  

       选购注意
      
       陶瓷饮食器具中釉中彩、釉下彩和绝大部分色釉瓷、白瓷的铅、镉含量很低,而釉上彩瓷如果在陶瓷花纸加工时使用了劣质颜料,或在花面设计上对含铅、镉高的颜料用量过大,或烤花时温度、通风条件不够,很容易引起铅、镉溶出量超标。有的白瓷,主要是未加彩的骨灰瓷,由于采用了含铅的熔块釉,如果烧成时不严格按骨灰瓷的工艺条件控制,铅溶出量超标的可能性也很大。
      
       釉中、釉下彩陶瓷的铅、镉溶出量极少或几乎没有,可放心选购。釉上彩陶瓷如果注意各生产环节的质量控制,有关铅、镉超标的问题是可以克服的。从历次国家监督抽查情况来看,也不是所有产品都超标,不合格的釉上彩装饰产品主要出自个体、私营、家庭作坊式的小型企业,而具有一定规模的大型生产企业和大城市的正规经销商店所生产和经销的产品,其质量都比较有保证。
      
       此外,陶瓷颜料中的蓝色颜料铅溶出量较高,如在产品装饰时用量过大,则很容易导致产品铅含量超标。为降低产品铅含量影响,选购陶瓷餐具时特别要注意:
      
       ①对盛装食物的用具,应注意与食物相接触面的装饰。  
       ②盛装酸性食物的器皿,应尽量选用表面装饰图案较少的产品。  
       ③选购时还应注意图案颜色是否光亮,若不光亮,可能是烤花时温度未达到要求,此类产品的铅、镉溶出量往往较高。  
       ④要特别注意那些用手即可擦去图案的产品,这种产品铅镉溶出量极高。  
       ⑤对不放心的产品,可用食醋浸泡几小时,若发现颜色有明显变化则应弃之不用。

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