Production technology of raw leather

Fundamentally speaking, there is no inevitable connection between pollution and tannery, but there is no phenomenon of toxicity and pollution in the raw leather itself. In terms of its emission pollution, there are mainly two aspects: one is the use of polluting chemical materials, and the other is that the non tanning substances to be removed from the raw leather in our processing process will enter the wastewater. From the source of these two kinds of pollution, they can be avoided in process production. The so-called clean leather making has been very mature in process research, and has been continuously transformed from laboratory to mass production in terms of new technology. Mainly in the treatment of many tannery wastewater, new equipment and new processes are more continuous, and when the technology is mature, it can meet the national discharge standards and even the minimum requirements of most tannery enterprises. Most of the existing substandard enterprises deliberately muddle through due to cost reduction or insufficient equipment investment, mainly because they do not belong to the scope of technology.
The main difference between ODM and OEM is not just the name. And for OEM, the products are mainly customized for brand manufacturers. They can mainly use the brand name after production. It is impossible and impossible to crown their own name and then reproduce. Its ODM mainly depends on whether the brand enterprise has the right to purchase the product copyright of the manufacturer. If it does not exist, the producer can have the right to re select its own production. As long as there is no brand design logo, it is generally OK.
The copyright is different. ODM depends on whether the brand enterprise has purchased the copyright of the product. If not, the manufacturer has the right to organize production by itself, as long as there is no design identification of the enterprise. OEM is completed by the manufacturer from design to production and bought by the OEM after the product is formed. Whether the manufacturer can produce the same product for a third party depends on whether the OEM buys the design scheme.
In terms of copyright, the main ODM is to see whether the brand enterprise has the ability to purchase product copyright. If it doesn’t exist, the manufacturer also has the ability to organize production by itself, and the recognition degree will be relatively better without the design of the company. OEM is mainly completed by the manufacturer from design to production, and the OEM will buy this resource after our products are formed.
Any processing and manufacturing industry will consume resources. The key is what kind of resources to consume. There are two kinds of natural resources in the world: disposable resources and renewable resources. For example, iron and steel, coal mine, petrochemical industry, non-ferrous metals and their raw materials belong to non renewable one-time resources; Grain and oil are renewable resources. One day, the disposable resources on the earth will dry up. According to the mining speed, coal can only be mined for 200 to 250 years, while oil will dry up in another 40 to 50 years. At that time, there will be no petrochemical industry and coal chemical industry, no plastic and chemical fiber, and no fuel trucks on the street. Therefore, mankind has taken various measures to limit the consumption of one-time resources. Many processing and manufacturing industries will consume resources relatively, but which resources are mainly consumed is the key.