What is a brush? What are the types of brushes?

Many people are confused about what a brush is, but when it comes to items such as toothbrushes, laundry brushes, shoe brushes, dishwashers, pot brushes, and even paint brushes, everyone feels completely familiar with them. In fact, this is the most commonly used tool in people's daily life, and it is also the initial form of use of brushes. However, for a long time, people have been accustomed to using them, often ignoring them themselves.
Although brushes belong to the category of erasers, they can be made into various shapes and have various flavors. However, brushes are completely different from erasers. The brush only has a single rectangular shape, and that rectangular shape is too straight and hard, single, and cannot be considered beautiful, or even ugly. And the flavors of various shapes and colors are not to mention. Have you ever seen a scented brush? Of course not, let alone any type of brush that has a fragrance. If there is really any smell, it can only be counted as the very, very pungent dust smell left by the chalk written on the blackboard and the brush cleaned it up!
Brushes can be classified into civilian brushes and industrial brushes based on their usage location, as follows:
1. Civil brush: mainly used for cleaning and other purposes in daily life.
Civil brushes mainly include: kitchen brush, shower brush, shoe brush, toothbrush, pot brush, laundry brush, coat brush, bathtub brush, bottle brush, glass cleaning brush, test tube brush, pet brush, massage brush, barbecue brush, bath brush, stainless steel hygiene brush, toilet brush, sponge window brush, shoe brush, clothes brush, roller brush, wall brush, paint brush, car brush, snow brush, etc
2. Industrial bristles: mainly used for cleaning machinery, food processing industry, glass and ceramic industry, textile printing and dyeing industry, metal processing industry, polishing, cleaning, dust removal, rust removal, etc. Industrial bristles are mainly applied in four aspects: dust prevention, polishing, cleaning, and grinding.
When a brush is first used, most of the reactions are that it will shed hair. In fact, due to the fact that the brush is made of relatively soft and fragile animal hair, compression during transportation can cause a very small amount of brush hair to break or break. The so-called shedding of hair is only the attachment of the brush itself to the broken miscellaneous hair, broken hair, which is within the allowable range of quality, and is completely different from the commonly believed type of hair removal. Moreover, before each use, if you master some knowledge of the brush and do some simple processing, basically there will be no situation of shedding or breaking hair.
1. Before using a new bristle brush for the first time, soak the bristles in warm water, and then gently stroke the bristles with your fingers. This can remove any mixed or broken bristles, and basically avoid hair loss during use.
2. In future reuse, the bristles can also be soaked in water and cleaned before use, which can prevent the bristles from forking out unevenly. If it is used for brushing grease, it can be cleaned with a cleaning agent such as detergent first. If it is used for water-based brushing, clean it with warm water.
3. Some factory users, in order to save costs, soak the brush in a solvent containing acetone after use on the same day and after work, which can prevent the brush from solidifying and hardening with the paint. If this is the case