Showing posts with label vernici all'acqua. Show all posts
Showing posts with label vernici all'acqua. Show all posts
Friday, 19 May 2017
Thursday, 27 April 2017
Monday, 3 April 2017
Thursday, 29 September 2016
Where are water-based coatings gone?
A good question, which is difficult to answer in a comprehensive way.
On one hand, we could say that the industrial world and the new global
economic conception is going in the direction of reducing costs (and pollution
is a cost, indeed), improving the workers’ living conditions (even if in current
water-based coatings there is a certain amount of solvent, it is undeniable
that they are less toxic) and consumers’ living condition (the
"indoor" emissions are virtually nil), improving material performance
(almost 100% of water-based paints are used for frames painting and,
consequently, they have excellent resistance "even" outside where the
stresses are definitely superior to internal ones), in our “explorations” looking
for virtuous companies we often stumble in organizations resigned in using
traditional solvent-based paints.
The most common answer that is given by those working in this field is
always the same: “I would like to use them, but they dry with more difficulty,
and it is necessary to pay more attention in the preparation of the substrate,
and furthermore they are more expensive”.
Is it true that water-based coating’s technology – which has been
produced since the late sixties of the last century… - has not solved those
problems? I don’t think so. After all there are companies that produce wood
paintings – practically – only water-based, and with a recognized high quality.
Unfortunately, not the Italian ones: some of them which started “in the right
way”, but then they backtracked, except a couple of exemplary companies, which
truly believe in a future of low environmental impact paints, starting from
their sellers (at least those who we know) first ones to promote these products
to users.
DRYING: Everyone assume that water-based coatings dry very slowly,
slower than the solvent-based ones, without knowing that the water, with the
help of some co-solvents in small quantities, forms "azeotropic"
solutions that evaporate at water’s temperature (100° C), faster than toluolo
(111° C), so that “hydro” paints dry out faster: seeing is believing.
SUBSTRATE PREPARATION: We talk a lot about quality, but we haven’t yet
taken for granted that quality starts from smoothing, pre-treatment, in
conclusion from substrate preparation?
COSTS: It is trivially a matter of market functioning, considering that if
there was a greater demand, raw materials would reduce their cost and,
consequently, also paints. Anyway, not to pollute is already a way to reduce
costs (health care, waste, diluents, and so on).
Friday, 29 July 2016
Waterborne UV curing coating for a 5 stars hotel: sustainability and high performances

Overlooking the Old
City of Jerusalem , the five-star David Citadel Hotel of Alrov Group, designed in 1998 by Moshe Safdie, the Israeli architect naturalized Canadian winner of the
AIA Gold Medal award, is the south side of the Mamilla
Quarter, in front of the historic Valley Hinome,
according to a
horseshoe plan. The outer covering is made of a
rough local limestone, while the interior is covered
with wood walls and wood false ceilings.
All common areas, 385 guestrooms and suites
have been redesigned and spread over 8 floors of the
building, according to a design by the Italian
Lissoni Associati who, by keeping the use of
traditional
materials and colours complemented by other alternative ones treated in an original way,
designed
the environment as a maze enhanced by the study
of natural and artificial light, rich in
vegetation.
A rich palette of colours, lights, textured
fabrics, parts made of brass treated with different finishes
joined with glasses printed on the back, with a central idea connected to the use of wood, oak
for the
floor, the heat-treated eucalyptus for the
walls and the furniture in the common areas and suites,
characterize and personalize all the areas,
both public and the private ones of the rooms.
«The mood of each room is characterised by the prevalence of some "colours" - tells
us Alessandro Simonato, manager of the office design of the
Tino Sana company located in Almenno S. Bartolomeo (in the province Bergamo ) who has been commissioned to manufacture all the furniture -
especially the eucalyptus heat-treated dark wood, iron or burnished brass, and
the "Mondrian effect" obtained with surfaces made of brass treated in different ways, mirrors, glasses printed on the back».
Belonging to an international luxury hotel
chain with high quality and surface resistance
requirements
suggested Tino Sana design office to choose
carefully materials and finishes.
«In the rooms – goes on Simonato – we chose, instead of heat-treated eucalyptus wood, some veneered panels with
pre-dyed wood coated with waterborne UV curing paints,
for "coarse", visual effect so as to
enhance the matt wood».
Thanks to the cooperation of Elia Maestroni,
Key Account Manager of IVM Chemicals company and
the technical support of the R&D laboratory, it
has been developed a coating cycle that allows to reach
a surface resistance comparable to other non-wood
finishes, which is an essential feature for hotel
furnishing of a hotel, of course, that is subjected to large
mechanical stresses and to the use of detergents for
cleaning.
Continue reading
Thursday, 28 July 2016
Wooden floors: natural unevenesses for a sustainable product

The presence on the market of materials
alternative to wood that reproduce its
aesthetic
appearance
has changed the perception of the
consumer, which tends to ask for floors with
large
sizes or
“herringbone” recovering the idea of
the floors "nailed down" of the past
and with natural
appearance.
For durability and surface resistance
requirements and
in order to make easier the maintenance, the
market
actually includes almost only industrially
treated
and coated floors that guarantee a stable
quality.
Naturalness and old floors atmosphere: to meet
these
trends, Tavar floors finish can be obtained
also by
using dyed reagents, both traditional and
waterborne.
Wednesday, 27 July 2016
A long sustainability’s path

There are big Italian companies, known all
over the world that, without prejudices, did
something in –depth and compared with the
territory that goes on over time despite the
crisis
periods, the production changes, the normal
difficulties
that are part of the “undertake”.
Since seventy years Snaidero, located in
Majano, in the
its own tradition and experience in the
technological
research and innovation. The company has moved
from
the original idea to produce kitchens by using
serial
concepts -are an inspiration the “American
kitchens”- to
the current “smart kitchen” - the English
word “smart” includes different shades of the
concept:
elegance and attractiveness, creative and
reactive
intelligence - able to give intelligent
solutions, really
flexible, very competitive in term of costs, at
the same
time, with a high quality level; these latter
features
typical of Made in Italy excellence, that can be seen
in the
success of foreign market (essentially American
but also
English, Turkish and of the Far
East ), which accounts for
50% of the annual turnover, complementary to
the other
50 of national market. But the philosophy which
is the
guiding principle for the company’s productive
choices is
still the man, both as buyer and worker. The
attention for
these areas took Snaidero 10 years ago to
install a plant
able to coat with waterborne products and to
choose for
a large part of production, low environmental
impact
coatings (high solid UV, for example) and UV
waterborne
finish. Tuesday, 26 July 2016
Harps: artisanal historical masterpieces, waterborne coated by a cutting-edge plant

It is true that an instrument intended for
high-level
professional performances, under the judgment
of
an expert public, it must guarantee first of all
that
the instrument has been built in order to avoid
any
inappropriate sounds, but all the productive
processes
we visited all even the less important, are so
refined, to
understand what means a “Salvi harp”.
We ask Gabriele Dutto, manager of the company
together with we visited the company, if the
coating
process of the instrument has only an aesthetic
function; he answered that: «the soundboard,
due to strings’tension- it can reach a carrying
capacity
of 1200 kg-tends to deform, even if the parts
needed to
built are stored in a well-ventilated and
heated room
for about 4 months. For this reason coating in
addition to meet high aesthetic requirements,
must be
elastic so that it absorbs the dimensional
changes of
the instrument and will not “break” the film».
In brief: all the instrument components are
prepared
in the joinery then they area pre-assembled
creating
a “raw harp” (as we call it), whose validity is
carefully
checked in order to guarantee the right
functioning
(the assembly of the various components is so
perfect,
that at the end it looks like a unique item).
All the components are then disassembled and
coated,
to be next assembled again to built the
“definite harp”, at
least in terms of structure, not yet tested in
its primary
function, the sound production: the specialists
of the
company (harp tuners and harpists), must do it
later.Thursday, 11 February 2016
Vernici effetto "metallo" all'acqua per il decking

L'importanza che ricopre la finitura si riscontra sensibilmente nell'attuale tendenza a mantenere l'aspetto naturale del materiale utilizzato, che diventa in questo modo utilizzabile in svariati contesti e con diverse valenze. Grazie alla continua ricerca e sperimentazione di rivestimenti materici, anche chi lavora il legno è in grado di renderlo simile al metallo.
È ciò che succede, per esempio, alla Ravaioli Legnami di Bagnacavallo, in provincia di Ravenna che, in sinergia con la ICA di Civitanova Marche, ha messo a punto un'innovativa linea di finiture ad effetto "metallo" che, oltre a migliorare ed innovare l'aspetto estetico del pino, ne aumenta la resistenza agli agenti atmosferici.
I prodotti Arborea Metal di ICA usati da Ravaioli per il decking e per i rivestimenti di facciate, oltre che essere a basso impatto ambientale, sono caratterizzati da un'elevata resistenza ai raggi UV e da un'ottima durezza superficiale, necessaria soprattutto per la pavimentazione, sottoposta di continuo al calpestio.
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