+7 (499) 653-60-72 448... +7 (812) 426-14-07 773...
Main page > WORK > Product plant chrome leathers

Product plant chrome leathers

Product plant chrome leathers

Tanning is the process of treating skins and hides of animals to produce leather. A tannery is the place where the skins are processed. Tanning hide into leather involves a process which permanently alters the protein structure of skin, making it more durable and less susceptible to decomposition , and also possibly coloring it. Before tanning, the skins are unhaired, degreased, desalted and soaked in water over a period of 6 hours to 2 days.

Dear readers! Our articles talk about typical ways to solve the issue of renting industrial premises, but each case is unique.

If you want to know how to solve your particular problem, please contact the online consultant form on the right or call the numbers on the website. It is fast and free!

Content:

Leather production processes

VIDEO ON THE TOPIC: How It’s Made Synthetic Leather

With the construction of this new system our production has specialized in manufacturing of waterproof and breathable leather of premium quality for military, police and firemen footwear, boots for mountain climbing, hiking and hunt, motorsport and golf shoes as well as orthopaedic, medicine and children's footwear. Each day the factory refines 18 tons of raw leather and produces sq m of finished leather. The high quality leather of the Simmental type that is used in the production is obtained from the suppliers in Croatia and in the EU and VIVIANI distributes the finished products to the European and Western markets and, in smaller part, to the domestic market in the Republic of Croatia.

That what distinguishes us from the competition is the production of smaller batches of the leather of premium quality and specific colouring that satisfy the high chemical, physical, health and other requirements and our consumer oriented policy whose requests we strive to fulfil promptly and respecting the highest quality standards. Immense experience of our employees and long-time tradition of production where VIVIANI has always strived to enhance the production process, strict control of each production phase that takes place under one roof, strictly controlled origin of the leather used in the production and proven traceability from field to feet are the prerequisites for the creation of the finished product under the name NATURAL FOOTPRINT.

Energy drives everything. The enthusiasm and the energy of our employees on one side are responsible for our success and we try to continually and responsibly enhance the consumption of that energy because good motivation is what leads to excellent results. On the other side, we strive to reasonably use electric energy and to diminish its consumption in the production and the new more energy efficient machinery has contributed to that.

Furthermore, awareness of the harmfulness of CO2 emission has resulted in our efforts to reduce it to the minimal level and that is why in our production we use electric energy exclusively from the renewable sources, that is, the energy without CO2 — Green Energy.

Because of the new machinery and the investments to modernize the production, water consumption in the production process is minimal, and VIVIANI has its own water purification system as well. Also, VIVIANI monitors daily and keeps detailed records on the quantity of all other waste materials that come from production such as paper, nylon, wood and pallets that are disposed through licensed waste disposal companies.

Apart from that, VIVIANI uses only the raw leather that is a by-product of meat industry and obtains it from the suppliers that are situated as close as possible to the factory. Because of that the leather that enters the factory is fresher and of higher quality and fewer chemicals is needed for its further processing.

Through shorter distance transport VIVIANI also positively effects the environment because this also diminishes the emission of harmful gases from the traffic.

All employees live in the factory's vicinity and they do not need to use cars to get to work. This also gives them more free time to spend with their families and loved ones. Concern for the environment and focus on environment protection VIVIANI additionally demonstrates with its vegetable garden that is used for the employees' needs. Leather production is impossible without the use of necessary chemicals.

VIVIANI however, through its continuous investments in both the knowledge of its experts and in the modernization of machinery and production process strives to minimize the quantity of the necessary chemicals at the same time maintaining all premium characteristics of leather as a finished product.

Main goals of REACH are the protection of human health and environment, stimulating and improving the capacity of European chemical industry to compete in the market, impeding the fragmentation of the European market, improving the transparency in chemicals management, integration with international forces in the field of chemicals management, encouraging the implementation of alternative methods of testing the dangerous substances and harmonization with the international obligations.

Throughout the years this stance has been confirmed with the care for our employees and respect for our customers on a daily basis. The company regularly pays social, health and pension security for all of its employees. All employees have annual medical check-ups and receive jubilee awards. Since the factory work is very strenuous and demands special work dedication, VIVIANI has its own kitchen where all of the employees can get free meal for which the vegetables come from its own garden.

As a responsible community member VIVIANI encourages local culture and art associations by giving its space hall — dining area on disposition for poetry evenings, gathering of local artists and other. The complete production, that is all production phases resulting in finished leather in the Viviani factory, takes place under one roof in strictly controlled environment and in accordance with the requirements of the international norms ISO that defines the standards of quality management and ISO that addresses the systematic environmental management, that is the management in accordance with the principle of the protection of the environment.

Viviani is one of only few leather factories in the world that has a HACCP certificate and it collaborates only with those suppliers that have that certificate as well. Such systematic control process of the technological processing enables the further use of the by-products from the tannery — split in lime is used for the production of the gelatine and collagen for human use.

The factory has its own laboratory where the analysis and testing of all key leather characteristics are performed on a daily basis and where formulas for new products are created. VIVIANI conducts in its laboratory all the necessary quality tests in each production phase as well as the testing of finished product before it is delivered to the customers. LEATHER is a product for which the immediate touch is still the crucial factor, and tanning aside from being an industry is also a craft because without the craftsmanship of our employees, who are all experts in their part of production, it would be impossible to satisfy the high standards of our customers and of the market as a whole.

It is actually in the close collaboration with our customers that we create the products of premium quality and that enables us to respond to all their demands. After these processes hides go to the operations of fleshing and splitting. The hides are treated in wooden drums with tanning substances. Tanning is followed by mechanical operations such as sammying and shaving. The hides go through the processes of retanning-dyeing-fatliquoring, always done in drums and that give hides specific properties such as texture, softness, fullness, as well as color.

In the drying phase dyed hides are dried by applying different types of drying techniques depending on the characteristic that the final article requires. The dried hides are then softened by staking. After the drying phase, crust leather goes through series of chemical and mechanical steps such as buffing, dry milling, embossing and spraying, applying waxes and filming agent to achieve the final look.

Chrome free hydro leather is an innovative hydrophobic water-repellent leather which is produced without the use of chromium and despite that retains all the parameters of air and vapour permeability according to GORE-TEX standards.

Such leather is the future of the leather industry. Namely, in current technology of tanning the useof chromium in producing water-repellent leather is necessary because without chromium characteristic of hydro leather could not be achieved. The production of Chrome free hydro leather requires less water, less chemicals does not require pickle, salt or acids in the process of tanning and produces less CO2 emissions which makes the Chrome free hydro leather more environment friendly product.

ISO represents international standard which comprises internationally applicable requirements for the quality of products, services and development. ISO provides guidelines for improving organization efficiency and its management in a focused and systematic way to ensure continuous progress.

By possessing the international norm ISO VIVIANI confirms that it systematically manages the quality of its production process in a way that complies with international standards and principles of quality management.

Green Energy represents green electrical energy obtained exclusively from renewable sources which means energy without the harmful CO2. ISO represents international standard for an environment management. With environment management system an organization guarantees that all the effects of the production on the environment are identified, supervised and in accordance with the legal regulation.

Various mechanisms used over time can alleviate or completely eliminate negative effects. By certifying its environment management system VIVIANI has defined its goals in environment management, environment management policy, key aspects of the environment and related programmes and the method for harmonization with the existing legal regulations on environment protection. This multi-stakeholder group seeks to improve the leather manufacturing industry by creating alignment on environmental priorities, bringing visibility to best practices and providing suggested guidelines for continual improvement.

It is the group's objective to work transparently, involving brands, suppliers, retailers, leading technical experts within the leather industry, NGOs and other stakeholder organisations. Since some of the by-products from the tannery are used as a raw material in the production process of gelatine for human use VIVIANI has certified its production process in accordance with international HACCP certificate. HACCP Hazard Analysis Critical Control Point is an international standard which implies systematic process of controlling the technological process in such a way that identifies all potential hazards in any process of producing, finishing, preparing, transporting and distributing the product.

Control measures are aimed at those action and procedures that are vital for ensuring the health safety of the product.

Achieving this effect in leather prevents the warming of the leather and of the foot in the shoe. This characteristic is very important when manufacturing shoes for special purposes such as military, police or firemen footwear.

Toggle navigation. About us Natural footprint Production Products Certificates. About us. Natural footprint. DYEING The hides go through the processes of retanning-dyeing-fatliquoring, always done in drums and that give hides specific properties such as texture, softness, fullness, as well as color.

DRYING In the drying phase dyed hides are dried by applying different types of drying techniques depending on the characteristic that the final article requires. FINISHING After the drying phase, crust leather goes through series of chemical and mechanical steps such as buffing, dry milling, embossing and spraying, applying waxes and filming agent to achieve the final look. Viviani produces: Waterproof and breathable leather of premium quality for producing: military, police and firemen footwear, - boots for mountain climbing, hiking and hunt, - motorsport and golf shoes - orthopaedic, medicine shoes - children's footwear leather of top quality for bags and leather goods.

The vegetable tanning is the feather in our cap: the most traditional, natural and ecological hide processing handed down by skilled craftsmen. Since , our tannery has combined its jealously guarded ancient recipes with technological innovation creating more and more sophisticated vegetable tanned leathers , meeting the demand of the fashion world, while preserving their characteristics.

The leather manufacturing process is divided into three sub-processes: preparatory stages, tanning and crusting. All true leathers will undergo these sub-processes. A further sub-process, surface coating may be added into the sequence. The list of operations that leathers undergo vary with the type of leather. The leather making process is in general restricted to batch processing, but if the surface coating sub-process is added then some continuous processing can be included.

Tanning (leather)

Description of the tanning-process 3. Emissions 3. Prevention of waste production 3. Description of the tanning-process Figure 3 presents a flow diagram of a the tanning-process. Hides are a by-product of slaughter activities and can be processed into a wide range of end products. For each end product, the tanning process is different and the kind and amount of waste produced may vary enormously.

The leather tanning process

After two years of experimentation, using a new tanning agent derived from aluminium, created in collaboration with a chemical company, the company launches a new tanning and retanning system that not only solves the age-old problem of chrome coming into contact with the skin, but also ensures brilliant colours when tinting suede, guaranteeing extremely light, deep and clean tones and maximum freedom in finishing crust leathers. The crusts supplied to the clients of Lancaster Int. Via C. Stay updated on news and Fairs and search the most important companies.

United States.

Why is this method so unsustainable and how does it actually compare to the natural method of vegetable tanning? Let's dive in and find out! The transformation of an animal skin into a piece of leather is primarily achieved by removing water molecules from the collagen of the skin, which is the protein that the skin consists of. However when drawing out the the skin might get ruined, as it gets dry and inflexible. Hence, since ancient times, literally for thousands of years , people have been soaking the skins in natural tannins to dehydrate the leather, which replaces the water molecules and binds with the collagen, preventing the part where the leather goes stiff and inflexible! These vegetable tannin solutions are made up of organic substance present in trees such as oak, chestnut or mimosa , or a large number of other types of trees and plants. Vegetable tanned leather takes up to two months to develop in a process that is mainly done by hand. It requires skill, patience and care and the tanning process uses no harmful chemicals, unlike its chrome tanned counterpart. This vegetable tanning process, consisting of repeatedly soaking skins in natural tanning solutions is painstakingly slow and complex, and usually takes at minimum of one-two months to finish, requiring the supervision of skilled craftsmen. This was not preferred by the forces industry, who devised a new method in where leather tanning would be achieved much quicker achieved in one day in fact and cheaper using a mix of chemicals, primarily chromium.

«Vakhrushi-Yuft» Ltd.

Vegetable tanning refers to leather that is tanned with oak and spruce bark. Also quebracho , tara pods , olive leaves , rhubarb roots or mimosa are common. These substances are placed in a pit along with the skins and hides.

This site uses cookies from Google and other third parties to deliver its services, to personalise adverts and to analyse traffic. Information about your use of this site is shared with Google. By using this site, you agree to its use of cookies.

With the construction of this new system our production has specialized in manufacturing of waterproof and breathable leather of premium quality for military, police and firemen footwear, boots for mountain climbing, hiking and hunt, motorsport and golf shoes as well as orthopaedic, medicine and children's footwear. Each day the factory refines 18 tons of raw leather and produces sq m of finished leather. The high quality leather of the Simmental type that is used in the production is obtained from the suppliers in Croatia and in the EU and VIVIANI distributes the finished products to the European and Western markets and, in smaller part, to the domestic market in the Republic of Croatia. That what distinguishes us from the competition is the production of smaller batches of the leather of premium quality and specific colouring that satisfy the high chemical, physical, health and other requirements and our consumer oriented policy whose requests we strive to fulfil promptly and respecting the highest quality standards. Immense experience of our employees and long-time tradition of production where VIVIANI has always strived to enhance the production process, strict control of each production phase that takes place under one roof, strictly controlled origin of the leather used in the production and proven traceability from field to feet are the prerequisites for the creation of the finished product under the name NATURAL FOOTPRINT. Energy drives everything. The enthusiasm and the energy of our employees on one side are responsible for our success and we try to continually and responsibly enhance the consumption of that energy because good motivation is what leads to excellent results. On the other side, we strive to reasonably use electric energy and to diminish its consumption in the production and the new more energy efficient machinery has contributed to that.

Semi-chrome Leather Wattle-tanned East Indian kips (lightweight hides) are A specialty product, 'Mimosa GS', has been developed by the Wattle Industry.

The leading B2B Italian magazine for footwear professionals and designers

Springer Shop Bolero Ozon. Plant Polyphenols : Synthesis, Properties, Significance. Richard W. Hemingway , Peter E. Laks , Susan J. The objective of this con ference was to bring together people with a common interest in plant polyphenols and to promote interdisciplinary interactions that will lead to a bet ter understand ing of the importance of these substances. Another objective of this conference was to extend the 'tannin family' by making special efforts to encourage participation by scientists outside the United States, obtain more coverage of the hydrolyzable tannins, and further broaden the scope of coverage from the initial concentration on forestry and forest products. Com parison of the contents of this book with 'Chemistry and Significance of Condensed Tannins' that resulted from the proceedings of the 1st North American Tannin Conference shows the degree that these objectives were met. In developing the second conference, care was taken to assure that this book extends rather than duplicates the coverage of the first conference.

Hybrid chrome tanning

Plant Polyphenols : Synthesis, Properties, Significance. Richard W. Hemingway , Peter E. Laks , Susan J. The objective of this con ference was to bring together people with a common interest in plant polyphenols and to promote interdisciplinary interactions that will lead to a bet ter understand ing of the importance of these substances. Another objective of this conference was to extend the 'tannin family' by making special efforts to encourage participation by scientists outside the United States, obtain more coverage of the hydrolyzable tannins, and further broaden the scope of coverage from the initial concentration on forestry and forest products. Com parison of the contents of this book with 'Chemistry and Significance of Condensed Tannins' that resulted from the proceedings of the 1st North American Tannin Conference shows the degree that these objectives were met. In developing the second conference, care was taken to assure that this book extends rather than duplicates the coverage of the first conference. Therefore, the two books should be taken together to obtain an up to date coverage of the broad area of chemistry and significance of plant polyphenols.

Create your free account

Why Vegetable Tanned Leather Leather? Basically, tanning is the process that converts animal skin to leather. There are several methods for tanning leather, but not all of them are good for your health or environment. I will first describe the most popular tanning method, Chrome-tanning.

Chrome vs Vegetable Tanned Leather

It is engaged in manufacturing and sale of chrome-tanned leather and yuft. Now in the assortment of the enterprise a large number of types of leather. History of leather-making in Vakhrushi has started in , when a year-old Timofey Vakhrushev organized a small handicraft plant for cattle hide finishing and manufacturing. The order for fabrication of military shoes for the Russian army in during the Russo-Japanese War gave a rise to rapid development of the enterprise.

Chrome tanning uses a solution of chemicals, acids, and salts including chromium sulfate to tan the hide. In , about 24 million tons of chromium was produced. Worldwide approximately , tons of chromium tannins are produced per year.

Я просто подумал… - Толстяк быстро убрал бумажник.  - Я… я… - Совсем растерявшись, он сел на край постели и сжал руки.

Comments 5
Thanks! Your comment will appear after verification.
Add a comment

  1. Gashicage

    I apologise that, I can help nothing. But it is assured, that you will find the correct decision.

  2. Arashira

    I think, that you are not right. I am assured. I can defend the position. Write to me in PM, we will communicate.

  3. Mik

    What words...

  4. Kajicage

    Also that we would do without your magnificent idea

  5. Dougrel

    It to you a science.

© 2018 chroniquesaigues.com