Titanium dioxide is a widely used coloring agent that gives foods. such as donuts. a vibrant whiteness. This substance can be found in various products. including paints and sunscreens. However. there have been debates surrounding its safety for consumption. While the FDA has deemed it to have limited food safety. certain studies have uncovered potential health risks. As a result of these concerns. some brands have chosen to steer clear of this ingredient. Therefore. when purchasing processed foods. it is advisable to check the ingredient list.

Cord yarn is a type of textile yarn characterized by its distinctive cord-like structure, which results from a unique production process that tightly twists fibers together. This process not only strengthens the yarn, making it durable and resistant to wear and tear, but also gives it a raised, textured surface that is visually distinct. Cord yarn is commonly used in the manufacturing of ropes, belts, and heavy-duty sewing threads, as well as in decorative applications where its textured appearance can add interest and depth to fabric designs. Its robust nature makes it ideal for products that require a combination of strength and aesthetic appeal.

The density of atactic polypropylene (a-PP) typically ranges from 0.855 to 0.865 g/cm³. Atactic polypropylene is a less ordered form of polypropylene, characterized by its random arrangement of methyl groups on the polymer backbone, unlike isotactic or syndiotactic polypropylene, which have more organized structures. This amorphous structure contributes to its lower density compared to the more crystalline forms of polypropylene. a-PP's unique properties, such as its lower melting point and softer nature, make it suitable for specific applications like adhesives, sealants, and some specialty packaging materials. Understanding the density and characteristics of a-PP helps in selecting the appropriate polypropylene type for various industrial and consumer applications, considering factors like rigidity, transparency, and resistance to fatigue.