According to the recent news of Bulgarian media (Focus-fen),

The National Statistical Institute (NSI) released the producer price index (PPI) of the domestic market in October last Friday.

Data show that PPI increased by 1.2% in October.

PPI medium

The total index increased by 0.4%.

In manufacturing, leather and related products are manufactured.

The chain fell by 1.2%, and chemical products fell by 0.7%.

The price index for manufacturing in October dropped by 0.1% over the same period last year.

Related links:

Central Leather Research Institute (CSIR-CLRI) of India has applied for a patent for its leather making technology, which has made significant breakthroughs in water saving.

The study aimed at reducing waste of water resources and saving tanning steps, saving time and money.

Subhendu Chakrabarti, senior principal scientist at the Institute, said that after the traditional leather making process, the deskinned bare skin needs to undergo softening (bating), acid pickling (pickling) and alkaline neutralization before chrome tanning.

All these processes need to add a large amount of chemical agents, each process needs to use a lot of water, and produce a lot of waste water containing harmful chemicals in the process.

He said that tannery wastewater is the main source of water pollution in many areas.

The new anhydrous chrome tanning technology can not only save time, but also produce economic benefits and reduce pollution.

He explained that with the new technology, tanning agent can be added directly to the defired bare skin without tanning water or other media.

The new tanning process reduces many production links and is therefore very economical.

Chakrabarti said that the new technology could also reduce about 50% of chrome tanning agents.

At the same time, because the water in the leather making process does not use water, it will not produce waste water, so it is very good for the environment.