The tennis world has always been rumored to say "3-point racket, 7-point line", the editor also deeply believes that many people take pains when buying a tennis racket, but when choosing a tennis line, it is a hassle. In their view, the material and design of the tennis racket can maximize the power of hitting. As everyone knows, this understanding seems to be a bit outdated now, and it can really bring about changes in hitting speed and rotation. A tough tennis line.
The process of selecting a good tennis line is so complicated that it has nothing to do with the dazzling array of tennis lines on the market. The changes in the tennis line in recent years are also the reasons for this prosperity. A good tennis line has an intuitive effect on the hitting effect. Then, not all lines (and the tension of the line) are suitable for all players. Today I will introduce you to the knowledge of tennis line.
1. Introduction of Tennis Line Material
Tennis originated in France in the 12th and 13th centuries. At that time, it was still a game of hitting the palm of the hand; from 1358 to 1360, this ancient tennis ball for nobles was introduced from France to Britain. The racket surface was converted into sheepskin and the ball was changed from cloth. Leather surface; in the 15th century invented the stringing racket, and then the tennis line has been evolving along with the player's personalized requirements, the discovery of new materials, and the advancement of technology. The tennis line currently on the market is mainly from the top The material of the picture is made. Next, the main materials of the common tennis thread are natural bowel, polyester thread, nylon (imitation bowel) thread, and Kevlar thread.
Natural sheep gut line: one of the oldest natural material ball lines, taken from the chorion on the cow intestine, suitable for top professional players or amateur masters. The history of the gut line almost goes back to the beginning of tennis, the first batch of gut line was produced by Babolat in 1875. The manufacturing process of natural gut string is extremely complex, and only three cows can make a tennis string. The effect is the best in controllability and feel, the texture fine catches the ball to a large extent, and the spin effect is good.
Advantages: ①Top ball line ②High toughness and good elasticity ③Quick feedback and comfortable feel
Disadvantages: ① Not resistant to moisture and corrosion ② Not durable and wearable ③ Higher price
Polyester thread: It is a very durable ball string material with a single core structure, but the tension loss is very fast. Players who switch from nylon or artificial bowel to this type of tennis thread should increase the tension by 3 to 5 pounds. In fact, the first-generation polyester thread is like an iron plate, and it loses weight quickly. The second-generation polyester thread combines other materials. The thread itself is softened and the ball feel is increased, which is an improvement over the first-generation polyester ball feel. Counting ability has also improved, but it is still their weakness. The third-generation polyester thread uses a multi-filament structure of synthetic polyester to improve the ball feel, and still uses the traditional single-core structure, but the feel is softer.
Advantages: ① Very durable ② Lifting power ③ Not easily affected by temperature and humidity
Disadvantages: ① feels stiff and uncomfortable ② loses pounds quickly
Nylon (imitation sheep intestine) thread: There are many materials and structures used for the flexible thread. The commonly used material is nylon or other soft compound fibers. These fibers have low hardness and are relatively soft; these fibers are converted by different weaving methods. Weave into threads with some additives to achieve different performances. The structure is also diverse, including multi-filament structure, single-layer composite, multi-layer composite, multi-core composite, etc. Most of the various types of structural wires seen on the market today are flexible wires. Golfers can enjoy a feel similar to sheep's gut at a price much lower than that of sheep's gut, and feel comfortable.
Advantages: ①The cord has low hardness and good elasticity ②It has good shock absorption performance and high comfort ③High cost performance
Disadvantages: ① The resistance to beating is poorer than polyester thread ② Easy to lose weight
Kevlar fiber: This is one of the greatest inventions after the invention of the 20th century materials science relay nylon. It is a new type of carbon material that is polymerized by carbon elements. The biggest feature is that it has a hardness that exceeds that of steel. The density is comparable to glass fiber. It was originally used to make body armor. Because of its high hardness, it is generally used to match the vertical line of the sub-bus, and the horizontal line is matched with the imitation gut line to increase the elasticity and the overall effect will be better.
Advantages: ① Super durable ② Super hardness
Disadvantages: ① bad ball feel ② poor controllability
Some golfers like to pursue spin, which is not related to the hardness of the tennis line bed. Many people choose a tennis line with a relatively hard texture in order to increase the potential rotation; the material, structure and thickness of the line will affect its spin. , The picture above is Yonex and Babolat, two polyester tennis lines with corners, specially prepared for golfers who want to spin.
Material summary:
Polyester thread: Hard thread, good durability, provides strength
Intestinal thread: soft thread, good elasticity, excellent feel and control
Natural gut: soft thread, best elasticity, excellent feel and control, expensive