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Quality Standard For Printing Ink
Sep 07, 2017

     Paper, cardboard, plastic and metal materials. The test method stipulated in the standard is, under the specific temperature and humidity condition, puts a filter paper flat on the glass plate, will be tested printing sample (20mmx50mm) placed on the filter paper, with the second filter sample cover on the tested proofs, and then put a glass plate on top. Load the finished glass test board into a sealed package or container and press the 1kg weight on the plate.Printing Ink
     Test the printed sample after the specified time dip out, rinse with distilled water to rinse liquid ph value is neutral, the test printed sample into the 52±2℃ oven drying 30 minutes. The filter paper should be naturally dry in the air and cannot be rinsed with water. The standard also recommends the testing of 5 acid solutions. The method of evaluation is to compare the dried samples with the reference proofs and test the filter paper.Printing Ink
     After, according to the following terms evaluation test results: 1 Test specimen appearance has a significant change, no acid resistance. The test specimen appearance has not changed obviously, but the filter paper is disseminated, need to be evaluated according to the degree of dip. If the degree of dip reached the gray wedges (see ISO105-A03) level 4th above, can be determined by the test sample decolorization, that is, the sample is not acid resistance.Printing Ink
     As a large number of printing industry use of basic raw materials, ink play an important role, especially in the printing of new technology and the special effects of prepress processing, leading ink enterprises in the brand innovation continues to introduce. Printing Ink
     In addition, the tobacco industry on the environmental characteristics of cigarette packaging demand also led to the gradual development of low toxicity, pollution-free and so on. However, the rapid development of ink technology, the ink standards appear relatively lagging behind, resulting in the printing plant in the control of product quality, the lack of ink and other raw materials inspection and monitoring basis.Printing Ink

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