The Application of PVA Films Used as Industrial and Agricultural Films
ANHUI LIWEI CHEMICAL CO.,LIMITED
Agricultural films:
1. Pesticide packaging: High concentrations of
pesticide, toxic and
many other issues are widespread problems of
pesticide, and it is
great harm to human body. Therefore, the
pesticide packaging problem
has been more and more get great importance
attaches of pesticide
department. For a long time, pesticide
packaging has three major
shortcomings:
1). Liquid pesticide use glass packaging, the
breakage rate of glass
bottle is higher then others.
2). The use of common pesticide packaging bags
can easily generate a
large number of packaging residue, and
resulting in waste.
3). The abandoned pesticide with a large
number of residues bags can
be easily discarded in rivers, streams,
fields, and can easily
contaminate soil and water.
4). Accumulate over along time period, it will
become an invisible
killer of poisoning the human and the
environmental pollution.
According to statistics, every year, there are
about 300 million of
these pesticides packaging waste in our
country. About the loss of
these pesticide packaging waste over one
hundred tons, and how to
timely handle the packaging waste has become a
priority in front of
us.
With water
soluble polyvinyl alcohol film
packaging pesticides , farmers can
conveniently thrown the wrapped
pesticides into the field from the ridge. And
when they prepare the
agent, as long as the packaged drug is
dissolved pesticide inputs
mixing bucket.
2. Seed strips: After crop seed spacing
arrangement, use water
soluble polyvinyl alcohol film pack into a
strip, maintain its shape
and bury it in the soil, make it suitable for
germination, thinning
operations can be omitted. Vegetation cloth
makes the seeds attached
to the Water Soluble Polyvinyl Alcohol film,
and form cloth, to
simplify the job lawn.
Industrial films: 1.
Printed
film: PVA film has
excellent water color and ink printability,
which is available only
with plastic film with printing ink
incomparable advantages, it can
be used for water transfer printing, such as:
coloring glass,
ceramic, electrical enclosure and so on. At
the same time, Polyvinyl
Alcohol film with strong polarity, printing
without electric spark
processing. It is widely used in special
printing industry, such as
water transfer printing membrane
substrate.
2. Embroidery film: PVA film with water
soluble property, only need
to soak for several minutes, advance material
will be completely
dissolved, embroidery patterns can be
appeared. The advantages of
the application of water woluble PVA film:
non-toxic and fully
dissolved, convenient processing, do not
produce glue residue and
drawing, and suitable for multi- head
embroidery machine, won’t be
broken or partial holes, instead of non-woven
fabric material, avoid
high temperature deformation and fiber textile
dye fade. And we can
use PVA films to replace the paper cloth and
reinforced computer
embroidery products quality and incremental
value.
3. Clothing packaging film: PVA film has the
characteristics of no
static, transparency, and luster is superior
to other films.
Packaging objects appear more distinct
beautify the appearance, and
enhance the value of the goods. Water soluble
PVA film with high
barrier to the air, used in the textile
packaging, nitrogen energy
barrier in the air, avoid the nitrogen to
textile yellow. And it
also can absorb carcinogens such as
formaldehyde in textiles, in
convenient destroyed after using, so the water
soluble PVA film is
an ideal material for textile packaging.
4. Water Soluble Health film: It can be used
for women’s products,
such as: sanitary napkins pad and so on.
5. Food packaging film: Because PVA has
the advantages of high barrier property to
oxygen, carbon
dioxide, nitrogen, hydrogen and so on, it can
prolong the shelf life
of foods, cosmetics, tea and keep color and
aroma.
6. Medical film: It can contribute to the
maintenance of doctors,
nurses and other medical staff or patient,
laundry workers health
and safety, to avoid cross infection
contamination and medical staff
and patients.
7. Grease packing film: Water soluble PVA film
has a strong
resistance to permeability in animal oil,
vegetable oil, mineral
oil, fat and grease or organic solvents,
hydrocarbons, can be used
for the packaging of goods.