FREQUENTLY ASKED QUESTIONS
This section is not meant to be complete in its answers since it is possible to deal with all the concepts in depth and make them more technical. However, we want to give you the information necessary for the objective purchase of our products.
1.-What is more breathable: natural or synthetic leather?
The less the leather is covered (pigmented), the more breathable it is. The aniline leathers with the natural aspect and grain which pores are exposed are more breathable than the conventional homogeneous leathers protected and engraved that in their aspect might be compared to the Polyurethane (synthetic leather). Those, in turn, preserve the breathability superior to the one of PVC (Polyvinyl).
2.-Is leather delicate?
At first, less than a fabric since with time it gets a nice aging aspect, especially appreciated and pleasant in anilines. The fabrics do not age with time, they simply break down.
3.-Are thick leathers better?
In its origin the leather is neither thick, nor thin. It is a result of the cross section of the upper part of the hide (outer layer) and the split (inner lining) which gives the appreciated thickness and depends exclusively on the final appearance that we want to give the leather (more visible grain, hardness, flexibility, etc...).
4.-What is the original color of leather?
Before being tanned, leather does not have any defined color. It is in the tanning process when it is dyed to a required color (the natural color of leather is a myth).
5.-Is it more ecological to use synthetic or natural leather?
In the manufacturing process of both natural and synthetic leather, the industries can use the systems that are more or less ecological. As far as the natural leathers are concerned, its use is a way of making the most of the animal resources.
6.-Is the Polyurethane biodegradable?
Yes, the Polyurethane, unlike the PVC (Polyvinyl), is biodegradable. This virtue is one of the technical parameters which especially should be analyzed when choosing different levels of resistance to degradation of Polyurethanes (hydrolysis). It is measured in weeks of resistance to the “jungle test” and each week corresponds to one year of use in adverse conditions.
7.-What is the Polycarbonate?
It is the most noble of the Polyurethanes and is used to create synthetic leathers resistant to hydrolysis (degradation caused by sweat, light, temperature and humidity) superior to 5 years.
8.-What is the optimum resistance of the Polyurethanes?
In upholstery we do not recommend to work with products which resistance to hydrolysis is less than 3 years and in the nautical and car industry it should be superior to 5 years. Owing to the fact that the Polyurethane by nature has a high abrasion resistance, it is recommended to take into consideration factors such as adhesion and flexion as the main parameters of election.
9.-Can I use the Polyurethane synthetic leather outdoor?
No. Being biodegradable, the Polyurethane is not optimum for outdoor use because the hydrolysis deteriorates it rapidly. The Polyvinyl (PVC) with the adequate treatment of resistance to sunlight is a perfect choice for outdoor use, as its enduring character and great solidity make it perfect for extreme conditions.
10.-Is PVC waterproof?
Yes. Owing to the fact that its compact surface layer should be thick and heavy to guarantee good abrasion, it is an ideal product to cover the furniture exposed to water.
11.-Is PVC toxic?
No, Currently the Polyvinyl is manufactured free of heavy metal and in its use does not exist any toxicity.
12.-Which flame-retardant standard should be met by the upholstery?
Currently in Europe the 1021 UNE Parts 1 and 2 standard is mandatory for the use in collectivities and projects which must fulfill the CTE (technical code of building). Since 2006 the previous regulations (M1, M2…) have been abolished in Spain and new rules have been applied. This norm is generally speaking based on the fabric’s capacity of not letting the fire pass into the upholstery. It is not by any means a test of extinction in which the fabric doesn’t catch fire in the vertical position (curtains). In France, Germany, Italy and Great Britain the previous regulations are still being used (in each country a different one) which leads to high costs of ratification for every product. The sectors such as maritime, aviation, railway and transport have their own specific regulations.
13.-What is the anti-stain?
The anti-stain is a protective film of the fluorine resin which avoids stains and is applied to fabrics of different commercial brands. However, it is not a guarantee of impermeability, nor does it avoid the stains by 100%. There are some very resistant treatments which even manage to prevent the spots of ink or pen from adhering to the fabric, such as our finishing “Splash Nanotech”.