Knowledge and usefulness of popular science tailor scissors

Scissors are an indispensable tool in life. They undertake many tasks that cannot be accomplished by knives and axes. They have a sharp pair of scissors, tear tape, and help you unpack express delivery in seconds.
Now, all kinds of scissors of different lengths have cut my hair short, cut off my worries, cut the unloved forks, and crawled all over the ground inch by inch.
 
1. Original scissors: two-knife merge
If the two strands of scissors are separated, each strand is no different from a knife, with a handle, a back and a blade, and scissors are indeed evolved from knives.
In the 3rd century BC, the ancient Egyptians discovered that when cutting ropes and branches, it was much faster to cut with two knives at the same time than with one knife. People began to adopt the form of "Cross Slash" similar to Spartacus' nirvana. The handles of the two knives were tied together with iron chains. When using them, the left and right hands were crossed. With external force, you can cut objects, which is the prototype of scissors.
 
2. Cross-strand scissors: large tweezers with blades
Compared with the new scissors that appeared later, this kind of scissors is also called "cross-strand scissors" because the handles are connected.
During the Han Dynasty in China, people also discovered the benefits of the combination of two swords in their daily life. So skilled craftsmen shaped the two ends of an iron bar into a knife shape, sharpened a sharp edge, and then bent the iron bar into a "U" shape. When in use, you only need to press the two handles at the same time, you can cut the object, and when you let go, the elasticity of the iron bar restores it to its original shape, just like using tweezers.
When scissors cut objects, the two blades will intersect with each other, which is also called "reamer" by folks. In many places in the north, people are still accustomed to referring to "cutting things" as "hinging things".
 
3. Pivot scissors: clever use of lever principle
In the 7th century AD, scissors, as the essence of the Tang civilization, made their way to Japan. Subsequently, it flowed from Japan to Europe. Europeans found that the through handle of the cross-strand scissors would lose elasticity with the increase in use. So, simply separate the two blades, drill a hole between each handle and the blade, and fix it with a nail. In this way, the scissors can be opened and closed freely, and are no longer controlled by the elasticity of the iron bars, which has become the typical appearance of our scissors today. Because the blade moves up and down with an iron nail as a fulcrum, it is named "fulcrum scissors".
 
By the 18th century, pivot scissors were more and more widely used in life: herdsmen sheared wool, gardeners pruned branches, tailors cut clothes...
 
Therefore, according to different uses, the fulcrum of the scissors is adjusted to create a variety of professional scissors: gardeners sometimes need to cut thick branches, so the fulcrum of garden shears is forward, the handle is long and the blade is short, which is very labor-saving to use. ; The tailor cuts the fabric very carefully, so the fulcrum of the scissors is back, which is laborious but accurate.
 
Fourth, the division of labor is clear: one attack and one defense
When scissors are in use, the handle controlled by the thumb usually moves up and down, while the handle controlled by the index finger or middle finger does not move, so one of their corresponding blades is called "active blade" and the other is called "static blade".
 
When cutting something, the force of the fingers is concentrated on the movable blade, which is used to cut downwards, while the stationary blade is more of a "block", but it also has a blade itself, so the object is easily cut. .
 
Nowadays, scissors are not only tools, but also more and more decorative in workmanship. When engaged in manual DIY, take a pair of delicate small scissors, which are particularly exciting.
 
The two blades of the scissors take on different duties, and after prolonged use, they seem to have a memory. If you use it in reverse, it will be very uncomfortable, so the scissors used by left-handed people will be very awkward for right-handed people.
 
Jingmu (Zhongshan) Machinery Co., Ltd. (formerly Deng's Sewing Products Factory) is located in Zhongshan City, Guangdong Province, the hometown of Mr. Sun Yat-sen, the forerunner of the great democratic revolution. The company specializes in the production of sewing accessories, such as: plastic tape measure, clothes measure, tag gun (chest card gun), spray gun, industrial regulation, hexagonal needle key, screwdriver, special aluminum beer rack (rubber rack) , bundled reels (rolling reels), irons and wire machines and other types of products. After more than ten years of hard work, exploration and practice, it has formed a unique technical process and established a reliable quality assurance system.

The company's products have exquisite craftsmanship, beautiful appearance and elegant packaging design, which are favored by customers at home and abroad.
Jingmu enterprises rely on science and technology, continue to develop, with the goal of "establishing a business with quality and creating a world brand".
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