Instructions for the purchase, use and maintenance of household scissors
Scissors are double-edged tools for cutting sheets, paper, steel plates, ropes, round steels, etc., which are sheet-like or linear objects. They are interlaced and can be opened and closed. In China, due to the development of the textile industry, scissors and scissors are distinguished in the industry. For example, if you cut a knife, it is called a pair of scissors. Its shape is like an iron column folded in half. The tip is used as a pair of blade cutters. It is commonly used by women's red textiles. Today it is influenced by foreign cultures and is called u-shaped scissors. The blade seedlings are scissors and are used to cut the woven fabric. Some places today call nail clippers scissors, because they are like scissors.
Although the scissors are not surprising, they are widely used. When tools such as knives and shovel are not working, the scissors can be easily solved. Scissors have become an indispensable tool for people's daily production and life. The tailor should cut the cloth and cut the thread. The village woman should cut the paper and cut the metal skin. The herders should cut the wool, the gardener should cut the branches, and the coppersmith should cut the scissors...
Medical scissors
The name of the surgical instrument. It is used to cut off meat, blood, skin, film, etc., and is made of steel.
Household scissors
Modern household scissors are made of vanadium-iron material, and the cutting thickness can be several times that of the existing ordinary scissors.
The degree of joint of the knife edge is good, and the number of cutting of the scissors tip can be more than 5,000 times. This type of scissors uses the metal properties of vanadium in processing technology, and vanadium is an important alloying additive in the steel industry. Vanadium can improve the strength, toughness, ductility and heat resistance of steel. The use of this kind of scissors in the home can eliminate the need to repair the scissors.
Scissors selection method
1. Look at the steel of the scissors.
The most important condition for good cutting scissors is of course steel. Now high-grade scissors are usually made of 440C steel with a hardness of 58-60, especially domestic scissors. This steel has represented the best steel. Some Germany and Japan have 314 steels per day. Some people will say that the gloss of the scissors is polished, this is true, but no matter how polished, the color of the light from different steels can not be changed, just a little brighter. But some scissors steel is matte.
2, look at the work of scissors.
The high and low grades of scissors depend to a large extent on the fine workmanship. Observe the workmanship. First, look at the inner blade line, that is, a white light on the inside of the knife edge. For the two blades of the scissors, the track line is even and smooth. If possible, open the scissors, then gently close it, and feel the cut is smooth. Second, look at the guide. Whether it is sleek, most of the scissors guides are now in a "U" shape. The Japanese scissors are biased toward the "V" shape, but the ends must be rounded. The third is to see if the handle is ergonomically designed. The scissors are comfortable in the hand. Will the fingers have discomfort in the finger ring, whether the edges of the finger ring are smooth and round, the hand tail is firm, and the knife tip is tight when closed.
3. The feel of the test scissors.
If the scissors meet the above criteria, the feel will not be a big problem, but the scissors are produced by hand, and there is no guarantee that the quality of each one will be perfect, and no matter whether the quality is problematic or not, it is always necessary to use it. Comfort is good, because each person's finger shape and thickness are different, there will be subtle differences in the feel of each person in the same pair of scissors. However, it is important to note that the test must be gently opened and closed, because the speed is too fast to cause air shear, the damage to the new scissors is large, most sellers are not allowed to do so.
4. Sharpness of the test scissors.
Here are two simple methods: one is to take a single layer of facial tissue, spray it with water, cut a hole with scissors, if the cut is smooth, it means sharp, the scissors is rough, and the second is a thin cotton thread. The cotton thread on the towel is also OK. Use the tip of the scissors to cut it. If it can be cut, it means the sharp edge. However, no matter which method is used, it is necessary to obtain the consent of the seller before the test. High-grade scissors are generally not allowed to test.
All of the above are considered in terms of quality. In addition, we must analyze the economic situation and usage habits of each person, including the brand, price, size, and hand shape of the scissors. In order to make two or more layers of fabrics cut accurately, special scissors should be selected. The most commonly used is 24-28cm length, which is the scissors marked with 10#, 11#, 12#. The key to distinguishing the quality of the scissors is to focus on the edge of the cutting cloth. First, see if the two blades are sharp, the upper blade is in a straight line, the lower blade is slightly curved, and the two blades are flush. Secondly, if the two scissors are equal in width and equal in thickness, then the handle is held in the hand and feels good. It is not ideal for sharpening and not awkward. It is an ideal scissors with the above conditions. In addition, small scissors, also known as yarn scissors, are also necessary. They are mainly used for trimming or threading the small parts of hand sewing or sewing. It is also convenient when it is necessary to cut the mouth in some parts. Choose a small scissors with the correct edge and good elasticity.
How to care for scissors
In order to maintain the sharpness of the scissors and prolong the service life of the scissors, the special scissors are limited to the cloth and the lining, and cannot be used for paper cutting or other things, otherwise the blade can be easily damaged. After the scissors are used up, wipe the blade with a cloth head with sewing machine oil to avoid rust and affect the use. Scissors should be kept in a safe place and must not be bumped or dropped on the ground.
Scissors tips
Scissors should be properly maintained and used ingeniously to maintain their sharpness for a longer period of time. After laying the fabric on the cutting bed, gently press the fabric with the left hand, hold the handle with the right hand correctly, and the front end of the lower scissors is attached to the cutting machine, and the handle is slightly raised. When cutting the straight line, use the middle of the blade to cut it, and the scissors should be slightly outward. Use the cutting edge when cutting the corner or turning part. Do not lift the scissors during the cutting process. Otherwise, the cutting of the two or more layers will be misplaced, which will easily cause errors in the cutting process.
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