custom corrugated boxes

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the sample meet the test requirements from an average sample. Sampling, remove all paper layer damaged from the outside of each of the selected web after quantitative if not more than 225g / m on and then remove the three undamaged, if quantitative than 225g / m will be removed undamaged layer, then cut along the whole banner roll knife, its depth should be able to meet the required number of sheets of sampling, routine testing is generally not less than six samples (sample length of full-size, width 400mm roll). Each sample should be labeled and clearly and accurately marked and paper to positive and negative aspect. Water samples should be immediately sealed package. Samples need to maintain smooth, wrinkle does not fold, should avoid the direct rays of the sun to prevent humidity fluctuations and other harmful effects. Hands touching the sample should be careful to avoid chemical, physical, optical, and surface characteristics of the pattern. When sampling or testing, such as an unexpected result when the sample damage resampling, unless otherwise stated, the sample can be taken in the same package unit. In view of the temperature and humidity conditions have a significant impact on the physical properties of paper products, paper and performance testing of all board are required in accordance with national standards GB / T10739-2002 "standard atmospheric conditions for paper, board and pulp sample handling and testing," the regulations. Before the test pattern, shouCardboard box manufacturers,Custom Cardboard Boxes, Folding Carton Manufacturers, Cardboard boxes suppliers China, Carton box manufacturers,  www.cardboard-box-manufacturers.comcustom corrugated boxes

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Yinzhou zone, ningbo city, zhejiang, China zhejiang ningbo Moldova, CIS [MD]
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