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The price of Liquitex Ink 316, featuring Phthalocyanine Blue Green Shade, can vary widely based on the retailer, location, and size of the bottle. Typically, it ranges from $5 to $15 for small bottles (e.g., 30ml/1oz.). Liquitex is a reputable brand known for its professional-grade acrylic inks, offering high fluidity and intense colors, making it a favorite among artists for various applications like painting, airbrushing, and calligraphy. The Phthalocyanine Blue Green Shade is particularly sought after for its vibrant, rich hue and excellent lightfastness, which ensures long-lasting artworks. Prices may also fluctuate based on demand, sales, and bulk purchases. It's advisable to compare prices across different art supply stores or online platforms like Amazon, Blick, or Jerry's Artarama for the best deal. Remember to factor in shipping costs if buying online.
Yes, polyester is a type of plastic. It falls under the category of polymers, which are large molecules made up of repeated subunits. Specifically, polyester refers to polyethylene terephthalate (PET), widely recognized for its use in fabrics and textiles. It is synthesized through a chemical reaction between an acid and an alcohol. Due to its plastic nature, polyester has properties such as strength, durability, and resistance to shrinking and stretching. However, like other plastics, it is derived from petrochemicals, raising environmental concerns, particularly regarding non-biodegradability and microplastic pollution. Efforts are being made to recycle polyester products and create more sustainable versions, like those sourced from recycled plastic bottles or bio-based alternatives.
The Yellowness Index (YI) is a numerical measure indicating the degree of yellow discoloration in a transparent or nearly transparent material, like polypropylene. Polypropylene, a highly versatile polymer used in several applications from packaging to automotive parts, can over time or under certain conditions (e.g., exposure to UV light, heat, or chemicals) exhibit yellowing. This yellowing not only affects the aesthetic appeal but can also indicate degradation, affecting the material's performance. Monitoring the Yellowness Index helps in quality control, ensuring the material maintains its desired appearance and integrity over time. Manufacturers may implement stabilizers or inhibitors to reduce yellowing, and selecting the appropriate grade of polypropylene with better resistance to yellowing is crucial for applications where appearance is important. Understanding and controlling the Yellowness Index is essential for maintaining product quality and customer satisfaction in polypropylene applications.
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