Ostoskori

Ostoskorissa 0 tuotetta.

Uusimmat tuotteet

Kukkakimpulla somistettu olkihattuMateriaali: Italiassa käsityönä valmistettu olkihattu. Somisteet: Käsityönä valmistetuLue lisää »
Miesten lippahattu fleece vuorilla ja korvasuojillaUnisex lippis, sopii miehille ja naisille. Päällinen : 100% nylon. VettähylkivääLue lisää »
Virkattu harmaa kapealierinen hattuLanka: 7-veljestä. Vuori: vuorisilkkiä Hikinauha Koko: 58-61 cmLue lisää »
Helmiäiskorvakorut - 5 sakaraisetHelmiäiskorvakorut. Kauniit tähtikorvakorut. Tähtien korkeus 4 cm. Korvakorukoukut:Lue lisää »

Kävijälaskuri

Käyntejä kotisivuilla:131900 kpl

SannoDesign

Ritva Saihila

Gsm 050 409 0000
Lönnrotintie 32
09220 SAMMATTI

e-mail: sannodesign@elisanet.fi

Y-tunnus 0930621-7

Avoinna (työhuone)

sopimuksen mukaan

Share |

Lohennahka

Teksti on luettavissa kokonaisuudessaan:  www.novakaeru.com.br

 

 

Bio-Leather

 

The worldwide interest in Environmental Education has resulted from the perception that technological progress has been historically associated with the degradation of the environment. One can verify that the development of the advanced nations has occurred at the expense of environmental conservation. Without discipline and rational thought in the use of natural resources, and without concerns about the soil, air and water etc. future generation shall be severely affected.

NOVA Kaeru, concerned about this, developed new tanning methods that use only organic products. Such as: polymers, vegetable tannins, synthetic tannins, acrylic resins, and other raw materials that leave the final product free of heavy metals, which are potentially harmful to the environment. The main characteristic is the integration of leather into nature after the end of its life span.

It is likely that all the tanniers will migrate to this process, however the technique has not yet been mastered on a large scale and the majority of tanniers have not been able to process bio leather in a way which results in a final product similar to that which is treated with heavy metals.

And, what about NOVA Kaeru and bio leather? We have been carrying out research in this area for some years and since 2006 have been able to reach a high standard of tanning using this process.

 

Social-enviromental Characteristics

 

The salmon is a fish mostly used for eating and, in most cases, has as sub-product the commercilization of its offal for animal food. Its skin is not exploited, and it´s usually discarded, causing organic pollution. Its use prevents the generation of this type of waste.

The processing of the salmon leather employs clean technologies and toxic free products. In his tanning are used vegetable and synthetic tannin, and other devices with low pollution replacing the highly toxic salts of chromium. In the leather business the organic material is called "bio leather," organic leather, chrome "free" and white.

The trade of salmon leather also contributes to the improvement of the quality life of fishermen since it becomes a source of additional income. To encourage the formation of associations of small colonies of fishermen, and therefore social inclusion.

The salmon catch is made consciously and non-predatory, with respect to environmental laws and the period of procreation.

 

SALMON LEATHER

 

Shape and Texture

Individual Salmon leathers are extremly soft, resistant and drapes wonderfully. The main characteristic of this leather is the homogeneous design of its scales.

An individual Salmon leather is approximately 70 cm long and 14 cm wide (see the shape in the picture), allowing for variations to these dimensions.

Application

Individual Salmon leathers are used to make sneakers, bags, artefacts in general, apparel, shoes and even interior decorations.

 

LEATHER DYEING

 

Material description:

Leather dyeing is a different process from the one used on cotton, wool or silk. Easy to be spotted in the final product, the natural color is easily seen, for it does not show a slight shade of green or blue that can be found in chrome-dyed leather: The "bio" fish leather, for example, has a lighter, beige-like shade.

The most common coloring lines are:

- Natural coloring: comes from wood, plants and other nature´s elements. These materials are little used in tanniers, for they have a limited range of colors, usually with little intensity and little solidness to the light.

- Synthetic coloring: do not contain metal in their composition. The range of colors is wider than that of the natural coloring and they are already used in formulting the "exotic" and "bio" leather.

- Acid coloring: most of them has metal in their composition, but in doses that compare to that of our organism. The dyed leather with this material has prettier and more intense colors, and with a wide range of options. And they are still considered ecological or "bio leathers".

Social-environmental Characteristics

Chrome is a heavy metal, harmful tothe human health and to the renewable natural resoursces. It is still used in the tanning and coloring of animal leather (cowa, goats, pogs, frog or ostrich).

The best way to differentiate a naturally tanned and dyed is to burn a piece of it - the traditional leather will generate a greenish powder, which is chrome, and it does not disintegrate.

"BIO" LEATHER TANNING

Material description:

The tanning is the transformation of the animal skin in leather. The leather is the organic material treated on the process of tanning so it doesn´t decompose. In the leather business, the naturally prepared leather is known as bio leather, organic leather, free chromium or white line.

The animal leather considered "natural", whether it be bovine, caprine, swine or "exotic" (which is the case of the following leathers: fish, frog and ostrich), aren´t completly free from chemicals in their transformation. It is, in fact, a leather that suffered "bio" tanning, that is, it doesn´t use heavy metals. Just the opposito of the traditional method, that most of the times uses the chromium as metal.

According to specialists, it is impossible to process any kind of leather without chemicals, that´s because without these resources (natural or not) the leather doesn´t offer resistnce and quality the use in large scale. The acetic acid (compound of vinegar) or vegetal tannin are some chemicals taken from nature and accepted on the process of "clean" tanning.

So, we can define a natural leather, or ecological, as the one whose tanning is free from polluting additives on the environment and harmful to the human being.

 

Tanning process

 

The firs stage of tanning is the "ribeira" or the cleaning and selection of skins.

The second stage is the tanning itself, where the skin spends 3 to 4 days on the water with vegetal tannins and several polymers (according to wheter you want a softer or harder leather, etc.)

The third stage is the finishing / greasing that determines its ommercial features (if the leather will be used on clothes, accessories, shoes etc.), also determining more or less softness, as well as resistance and color type.

Lähde: http://www.novakaeru.com.br