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  2. Food contact materials - Wikipedia

    en.wikipedia.org/wiki/Food_contact_materials

    Secondary direct food additives – components that are added to the food due to food treatment like treating food with ionic resins, solvent extraction; Indirect food additives – substances that may come into contact with food as part of packaging or processing equipment, but are not intended to be added directly to food; The food contact ...

  3. Edible gold - Wikipedia

    en.wikipedia.org/wiki/Edible_gold

    Edible gold was famous among the courts of the kings of European countries in the Middle Ages, implemented as food decoration and as symbol of extreme luxury and prestige among vassals and courtiers. Ancient court physicians believed that gold helped with arthritis and other body problems such as sore limbs. [3]

  4. Photopolymer - Wikipedia

    en.wikipedia.org/wiki/Photopolymer

    A photopolymer or light-activated resin is a polymer that changes its properties when exposed to light, often in the ultraviolet or visible region of the electromagnetic spectrum. [1] These changes are often manifested structurally, for example hardening of the material occurs as a result of cross-linking when exposed to light.

  5. Vark - Wikipedia

    en.wikipedia.org/wiki/Vark

    Vark (also varak Waraq or warq) is a fine filigree foil sheet of pure metal, typically silver but sometimes gold, [1] used to decorate Indian sweets and food. The silver and gold are edible, though flavorless. Vark is made by pounding silver into sheets less than one micrometre (μm) thick, typically 0.2–0.8 μm.

  6. UV curing - Wikipedia

    en.wikipedia.org/wiki/UV_curing

    Cationic polymerization is used in the curing of epoxy resins in the presence of UV in the industry. [16] Light energy from UV breaks apart photoinitiaters, forming an acidic solution which then donates a proton to the polymer. The monomers then attach themselves to the polymer, forming longer and longer chains leading to a cross-linked network.

  7. Waterborne resins - Wikipedia

    en.wikipedia.org/wiki/Waterborne_resins

    Most coatings have four basic components. These are the resin, solvent, pigment and additive systems [5] but the resin or binder is the key ingredient. Continuing environmental legislation in many countries along with geopolitics such as oil production are ensuring that chemists are increasingly turning to waterborne technology for paint/coatings and since resins or binders are the most ...

  8. Photoinitiator - Wikipedia

    en.wikipedia.org/wiki/Photoinitiator

    In chemistry, a photoinitiator is a molecule that creates reactive species (free radicals, cations or anions) when exposed to radiation (UV or visible). Synthetic photoinitiators are key components in photopolymers (for example, photo-curable coatings, adhesives and dental restoratives).

  9. Glycerol ester of wood rosin - Wikipedia

    en.wikipedia.org/wiki/Glycerol_ester_of_wood_rosin

    Glycerol ester of wood rosin (or gum rosin), also known as glyceryl abietate or ester gum, is an oil-soluble food additive (E number E445). The food-grade material is used in foods, beverages, and cosmetics to keep oils in suspension in water, [2] and its name may be shortened in the ingredient list as glycerol ester of rosin.

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