If you're looking to create plastic food packaging, it's essential that you understand which plastics are food-safe. Food-safe plastic resins are those approved for contact with edibles by the Food and Drug Administration (FDA). They are known as food contact substances (FCS).
The FDA defines sibstans ki sou kontak manje as "any substance that is intended for use as a component of materials used in manufacturing, packing, packaging, transporting, or holding food."
Men rezin plastik ki pi komen FDA apwouve pou kontak manje.
Tereftalat polietilèn (PET)
Se PET résine lajman ki itilize nan plastik ki gen aplikasyon pou kontak manje, soti nan boutèy soda omniprésente 2-lit nan boutèy abiye sòs salad ak krich manba. A vas majorite nan boutèy pou bwè yon sèl pòsyon yo fèt ak PET. Kontenè PET ki trete-espesyalman yo ka pran mikwo ond epi yo sèvi ak resipyan pou pran-yo ak plato manje pou yon sèl pòsyon.
The FDA has approved both virgin and poste-PET resikle konsomatè (PCR) pou kontak manje. The resin has been thoroughly studied for negative health effects and found to cause none. According to a foundational study, "PET itself is byolojik inaktif si yo enjere, li an sekirite nan po lè yo manyen, epi li pa yon danje si yo respire."
PET resin is stable. That means it doesn't degrade when in contact with food or beverages, it resists corrosion, and it repels microorganisms. These qualities that make it ideal for food contact.
Polypropylène (PP)
Polypropylene is a widely used plastic. You likely have polypropylene plastic in your fridge and cupboards right now: it's regularly used in reusable food storage containers. It's also the resin used to make yogurt containers and other single-serving tubs.
PP plastics are approved for food contact. They are materyèl inaktif epi yo pa prezante yon danje pou sante konsomatè yo. The FDA began to apwouve polypropylène resikle kòm manje ki san danje{0} an 2013.
Polypropylene's high melting point makes it suitable for microwaveable food containers. It's nonvolatile and doesn't react to liquids, acids, or bases, so it's perfect to store a wide variety of foods.
Polietilèn ki gen gwo -Dansite (HDPE)
HDPE se plastik ki pi komen nan kay la. Nan makèt la, ou wè yon anpil nan boutèy plastik HDPE nan ale ji a ak ka lèt la. HDPE yo itilize tou nan resipyan bè, bwat sereyal, ak nan gwo bokit manje, tankou sa yo ki bay kafeterya ak restoran lekòl yo.
Virgin HDPE is a safe plastic for food contact. The FDA has sanctioned recycled HDPE pou kontak manje sou yon baz-pa-ka pou plis pase 20 ane.
HDPE resin produces plastic that is corrosion-resistant and absorbs little moisture, making it well-suited for storing beverages. Also, HDPE containers don't leach chemicals into their contents.
Polietilèn ki ba -Dansite (LDPE)
Plastik LDPE yo sanble ak plastik HDPE, men yo konnen yo gen mwens rijid. Yo popilè nan boutèy peze, tankou yo itilize pou sòs tomat ak moutad; fim plastik, tankou sa yo ki vlope machandiz komèsyal boulanjri ak vyann; ak sis-bag bag.
Virgin LDPE resins are safe for food contact. While recycled LDPE/PP blends have been approved for food contact by the FDA on de okazyon, materyèl ki fèt ak 100 pousan PCR LDPE résine yo pa otorize pou kontak manje.
LDPE gen bon rezistans chimik, gwo enpak enpak, ak absòpsyon mete fò. Menm jan ak plastik PET ak HDPE, LDPE ka kenbe pwodwi manje ou yo san yo pa lesivaj okenn materyèl danjere oswa pèmèt mikwo-òganis pénétrer.
Polikarbonat (PC)
Yo souvan itilize polikarbonat nan boutèy dlo-pi fre, nan boutèy ti bebe, ak nan resipyan dlo ki kapab itilize ankò.
There's been a lot of discussion the past few years about the food safety of polycarbonate because there is bisphenol A (BPA) in the resin). BPA is rumored to be hazardous to health. Because of the public scrutiny, it has been extensively tested. The konsomasyon mwayèn konsomatè nan BPA se trè ba, and pwodui chimik la pa akimile nan kò a. No health risks are known to exist at such small levels, and the FDA has konkli li an sekirite pou kontak manje. Gen kèk manifakti ki ranplase ko-polyestè FDA-apwouve pou bay resipyan ki klè ki san BPA-.
PC is an especially tough plastic (it's used for bullet-resistant windows), making it ideal for "unbreakable" water bottles and storing large amounts of a product.
