Device for detecting migration volume of chemical substances in food packaging material
A chemical substance and food packaging technology, which is applied in the direction of material inspection, food testing, etc., can solve the problems of test error and difficulty in maintaining consistent contact time, and achieve the effect of easy operation, guaranteed accuracy and repeatability, and low cost
Inactive Publication Date: 2014-12-17
DALIAN STANDARD TESTING TECH RES CENT +1
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Problems solved by technology
To a certain extent, it is difficult to maintain the same contact time between parallel samples, which brings a certain error to the test.
Method used
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Embodiment Construction
[0010] The specific implementation manner of the present invention will be described below with reference to the accompanying drawings. like figure 1 Shown: the cup body 1 made of glass is provided with a sealing groove 2 on the upper end surface of the cup body 1, and the sealing groove 2 is built with a fully enclosed fluorine plastic sealing ring 3, and a glass sealing cover is placed on the sealing ring 3 4. A fixing jig 5 is set on the upper end of the cup body 1 and the outer surface of the sealing cover 4 to fix the upper end of the cup body 1 and the sealing cover 4 . The clamp 5 is provided with an open ring 6 , a fixed groove 7 is arranged inside the upper end of the open ring 6 , and an opening adjusting device is installed at the opening of the open ring 6 . The opening adjusting device is provided with a wrench 8 that is movably connected to one side of the opening of the split ring 6, and a screw rod 9 is fixed on the spanner 8; an adjusting nut matched with the...
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The invention discloses a device for detecting the migration volume of chemical substances in food packaging materials, comprising a cup body (1). The head face of an upper mouth of the cup body (1) is provided with a sealing trough (2); a sealing ring (3) is inlaid in the sealing trough (2); a sealing cover is arranged on the sealing ring (3); and fixed clamps (5) are sleeved on the upper end of the cup body (1) and the outside of the sealing cover (4). The invention has simple structure, low cost, easy operation, time saving and labor saving, can be made of glass materials, and the like, and can conveniently and fast complete installation and disassembly of samples by opening and closing a single clamp. The sealing trough and the sealing ring arranged on the head face of the upper mouth of the cup body have good sealing effect. When a test is finished, the cup body can be inverted quickly to prevent food simulacrum from contacting with test materials, and accuracy and repeatability of the test are effectively ensured.
Description
Technical field: [0001] The invention relates to a detection device for food packaging materials, in particular to a detection device for the migration of chemical substances in food packaging materials with simple structure, low cost, convenient operation and good sealing performance. Background technique: [0002] During the contact process of food packaging materials with food, the residual solvents, unpolymerized free monomers and degradation products of plastic products contained in the materials, as well as stabilizers, plasticizers, antioxidants, colorants, pesticides and Chemical substances such as preservatives will migrate to food. In severe cases, food ingredients will be changed, resulting in deterioration of food quality, affecting the taste of food, and then endangering human health. For this reason, the safety principle of food packaging materials requires that the amount of chemical substances migrated from food packaging to food must not exceed the standard....
Claims
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IPC IPC(8): G01N33/02
Inventor 毛希琴郑顺利
Owner DALIAN STANDARD TESTING TECH RES CENT