There are many kinds of doors on the market, and the quality is also uneven. Many consumers have expressed their distress. They do not know how to pick a door. They are afraid that they are deceived. Today, Xiao Bian gave everyone a talk. How do you look at the door? A look at the finish (styling and paint color); second look at the proof (toxic material content); three look at the material (solid wood material); four look at the work (whether the size of the rules, strict integration). Only by mastering this “four look†will it not be in the maze of the door without distinguishing authenticity from falsehood. Second, listen to the sound When choosing the solid wood door, you can watch the thickness of the door. You can also tap the front door with your hand. If the sound is dull, it means that the door is of good quality. The higher the proportion of solid wood in a typical wooden door, the heavier this door is. If it is a pure solid wood door, the surface pattern is very irregular. At first glance, the door surface has a smooth and neat pattern, and is often not a real solid wood door. As a late-stage process for processing wood doors in a factory, its advantages and disadvantages directly affect the final use effect. At the same time, the paint cost is also one of the largest parts of the wooden door. The types of paint are roughly divided into phenolic paint, alkyd paint, polyurethane paint, nitro paint, polyester paint, and PU paint. Among them, phenolic paints and alkyd paints are basically eliminated during the decoration due to poor texture and adhesion of paint films, and a large number of urethane paints, polyester paints, and PU paints used on high-grade furniture are used in large quantities. Nitrocellulose lacquer is used in large quantities due to its relatively simple construction and is suitable for manual operation. However, its lacquer film is thin and its handle is not good. The effect is not ideal. Due to the cost of processing methods and equipment, 90% of the packaged wooden doors on the market today use polyester paint and a few manufacturers use PU paint. In general, polyester paint and PU paint have to look for color, three steps and two sides and other six processes, some brands increase the curing and waxing process. Tips: More practical decoration knowledge, real scene with the shoot, please pay attention to the palm of this site (micro signal: mall_jia). Interior doors
L-Ascorbic Acid, also known as Vitamin C, is a six-carbon lactone produced by plants and some animal species but not by humans and other primates. Ascorbic Acid functions as an enzymatic cofactor for multiple enzymes, serving as an electron donor for monooxygenases and dioxygenases.
Application:
1. Antiscorbutic, antiviral
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2. Analgesic, antipyretic
3. Physiological antioxidant. Coenzyme for a number of hydroxylation reactions; required for collagen synthesis. Widely distributed in plants and animals. Inadequate intake results in deficiency syndromes such as scurvy. Used as antimicrobial and antioxidant in foodstuffs.