Migration from contact materials products

Miscellaneous Uses. Inks used by inspectors to stamp the grade or quaUty on meat must, bylaw, be made from food-grade colors. Dyes used in packaging materials that come in direct contact with a food must also be food-grade or, if not, it must be estabUshed that no part of the colorant used migrates into the food product. Pet foods, too, if colored, must contain only those colorants recognized by the FDA as suitable for the purpose. 

Additional regulations that provide specific requirements for color additives in foods are found in other parts of the CFR. Labeling of food products is found at 21 CFR 101.22(k). Color additives are sometimes called artificial colors or artificial colorings [21 CFR 101.22(a) (4)]. From a regulatory standpoint, a colorant is a dye or pigment used in a food contact material such as a polymer that does not migrate to food. Such materials are regulated as food additives [21 CFR 178.3297(a)], not as color additives. ... 

The objective of this chapter is to provide a comprehensive overview of the use of rubber as a food contact material, from an initial description of the types of rubber and rubber products that are used in the industry, through the formulation of products, and the contact regulations and migration testing regimes, to the research that is on-going to improve its safety and the trends for the future. 

A03043 Assessment and quantification of latex protein (LP) transfer from LP-containing contact materials into food and drink products. A03046 Chemical migration from silicones used in connection with food contact materials and articles. 

Primary exposure to dibutyl adipate is from skin contact with cosmetics and sunscreens containing this compound. It can also migrate from resins using this material as a plasticizer during the life cycle of the product and after disposal. 

Data on migration of plasticizers of various chemical structures from plasticized PVC films into non-plasticized PVC, polyisobutylene, polystyrene, PMMA, and other polymers can be found elsewhere. These results show the influence of the natures of plasticizer and polymer on plasticizer migration during contact of the two materials. Data on the equihbrium content of plasticizers in contact with polymer products containing plasticizer... 

Flexible or soft PVC compounds obtain their flexibility by incorporation of plasticiser which is not normally chemically bonded to the PVC polymer. Under certain conditions of use such as contact with fatty substances or oils for example, the plasticiser is able to migrate from the flexible PVC product into the contact material. 

Polymer packaging is widely used in all industry sectors food, cosmetics, health and care, chemicals, transportation, distribution, industrial and agricultural products, and so om A key role of packaging is to ensure the protection of the product it contains. The packagiug prevents the product from external contamination and it maintains its quahty. But when a product is brought into contact with a thermoplastic material, transfer of compounds occur from the material to the product (migration) or from the product to the rrraterial (sorption) (Safa and Bourelle, 1999 Auras et al., 2006). 

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