The advantages and disadvantages of different materials of umbrella ribs are explained below: 1. Advantages of aluminum bone: light weight and cheap price. Disadvantages: not strong and durable enough. 2. Advantages of chemical fiber bone: light weight, durability and strong wind resistance. Disadvantages: not strong enough and durable 3. Advantages of carbon fiber bone: light weight. Disadvantages: the wind resistance is average, and the price is the most expensive of all materials. 4. Advantages of wooden bone: Traditional Chinese umbrella is often used, which has Chinese beauty. Disadvantages: not strong and durable enough 5. Advantages of iron bone: strong and durable, and the price is slightly more expensive than aluminum bone.
2.Cloth material for umbrella
There are three kinds of cloth for umbrella, and the cost from low to high is polyester fiber, impact cloth, nylon and transparent plastic. Polyester fiber and polyester fabric are characterized by bright color. After rubbing the umbrella fabric on your hand, the crease is obvious and it is not easy to restore. When the cloth is rubbed, it will feel resistance and rustle. Apply a layer of silver glue on the polyester, which is what we usually call the silver glue umbrella. The anti ultraviolet function of the silver glue cloth is better, but after a long time of use, the silver glue is easy to separate from the folded place. But the anti solar ultraviolet effect is not ideal. High density impact cloth is a new type of cloth. PG has the following characteristics: the color is matte and dark. The fabric feels like cotton, with good light resistance. The cost of PG cloth is relatively high, but the anti ultraviolet function, quality stability and color grade are ideal. It is a better umbrella cloth. Generally, PG cloth is only used in high-grade umbrellas. Nylon, nylon cloth is also a high-grade variety of umbrella fabric. This kind of rain cloth has bright color. It feels like silk when touching your hand. It rubs back and forth with your hand with little resistance. However, this kind of cloth has a weakness. It is greatly affected by air humidity, and the umbrella cloth shrinks seriously, sometimes even affecting the normal opening and closing of the umbrella surface. Therefore, there are not many umbrella fabrics in our common use. Transparent plastic is a popular transparent umbrella in recent years. Its umbrella surface is made of Poe or PVC plastic, and some also have various patterns and colors.
3. Umbrella size
The size of the straight rod umbrella is larger than that of the folding umbrella. The diameter under the umbrella can reach more than 90cm. It is enough for one person to use. If there are two people, it is necessary to use relatively large umbrellas, such as those with a diameter of more than 100cm.