Specification for size calculation of genuine leather
1, the unit of measurement of leather usually has area and weight two ways: the square foot is often used in China, Hong Kong and Taiwan is often used in the square foot. Among them: 1 square foot = 30 cm *30 cm, 1 square foot = 25 cm *25 cm Japan and other countries are usually according to the DM leather unit, 1DM = 10 cm *10 cm; Europe and the United States and other countries are usually according to the weight (ounce) as the leather unit, specific according to different thickness and leather to determine the price per ounce; In China, some corner scraps are often sold by weight (KG). 2. The area of leather material is measured by the factory consumption leather machine. When measuring, all the corners and corners are calculated. The area can not be calculated by measuring the longest edge * the widest edge of leather, and because leather is of irregular shape, a square foot of leather is not exactly 30 cm *30 cm, and it is difficult to calculate the corners when we observe with the naked eye or measure with a ruler. So usually what we see is less than the theoretical area we calculated. 3. The length of a full-grown cowhide is about 250cm, the widest part is about 200cm, and the area is about 50-54 square feet. The average length of a pig's skin is about 110 centimeters, the widest part is about 90 centimeters, and the area is about 10 to 13 square feet. The length of the whole sheepskin is about 80 centimeters, the widest part is about 60 centimeters, and the area is about four to six square feet. This is just an average, and the actual size of each leather will vary greatly. 4, the actual sales of leather is not all the whole, some half a sheet, some a quarter of a sheet, some extremely irregular shape, such as the side leather, usually 20-40 cm wide, arc is a long strip. 5. Therefore, the amount of leather used in our calculation is calculated according to square feet, and there will be the loss of the whole skin and the actual loss, which is also the reason for the difference between the results calculated by many customers and us.
The history of leather. - Everybody know that?
More than 5,000 years ago, people began to use leather to protect against wind and cold, and then used leather as a noble gift. By the Zhou Dynasty (more than 1,000 BC), people had initially mastered the technology of leather making and fur making in long-term practice, forming the primitive leather industry. In the mid-19th century, the discovery and application of chrome leather softening method greatly accelerated the development of leather industry. In the early 20th century, with the successful development of various tanning chemicals, the tanning industry has been rapidly developed, and many countries have gradually formed a larger tanning industrial system, the leather industry from the original pure manual operation transition to semi-mechanized and mechanized production.
China is expected to become the world leather production and trade center
Experts predict that Asia, especially China, will replace Europe as the world leather production and trade center by 2030s at the latest. At present, China has been recognized as a major producer of leather in the world. On the premise of complying with the Convention on International Trade in Endangered Species of Wild Fauna and Flora and China's Wildlife Protection Law, China's leather industry has three characteristics: first, raw material resources, product output and import and export trade all rank among the best in the world. Data from China Leather Industry Association shows that China's raw material resources of pig skin and sheepskin rank first in the world and third in the world for cow skin. The second is high yield. China's output per young leather exceeds 400 million square meters, ranking first in the world and accounting for more than 20% of the world's total output. The output of footwear exceeds 5 billion pairs, also ranking first in the world. The comprehensive output of leather goods also ranks first in the world. Third, export volume. In 2001, the export of major commodities of China's leather industry reached 12.48 billion US dollars, ranking first in the world. China's leather industry, including footwear, is undergoing industrial upgrading. In the near future, China will undoubtedly become the world's largest, most active and most concerned leather market.
Luxury material features private customization of leather goods
The perfect leather product is no longer just an existing option, but can also have its own unique style. When the unique design meets the luxury material, but also into their own ingenious ideas, that is a unique and perfect embodiment! Today, luxury brands are also developing "personal customization" services for noble leather goods, such as Gucci's special customization of classic leather pieces, all of which can be carefully discussed and designed by both parties.
Wenzhou Lucheng District beach edge is nearly 100 tons of heavy metal containing leather pieces
Recently, a netizen from Wenzhou reported to this net that a large number of leather processing scraps were stolen and dumped on the beach side of Xiayan Village, Shu Township, Tengqiao Town, Lucheng District, as well as the road side, which has a bad impact on the surrounding ecological environment.