FILTER PAPER
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  FILTERFILTER PAPERIndustrial Filter Paper |
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INDUSTRIAL FILTER PAPER
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In order to use in diverse production sites, its
filtration flow and burst strength are reinforced. It
has a thickness of about 0.2 to 2mm. As they are
made of natural cellulose pulp, they are widely used
in chemical, beverage and medical fields.
These are basically used in quantitative analysis
or chemical experiments.
As they contain less ash and less impurities, they
are used for general industrial filter paper.
The most common filter paper for clarifying
filtration, With qualitative filter paper for analysis,
it collects particles of 1~10㎛ effectively.
With special treatment, wet strength is enhanced.
With the surface of uniformly crepe, the filtration
area is enlarged. Efficiency is improved without
reducing filtration speed.
Made of whitening cellulose fiber with no
bleaching treatment, light brown surface
The most common filter paper used for Clarifying
Filtration. Used for horizontal or vertical pressure
type filters. Widely used in many fields. Three types
within a range of 1~4㎛ which are commonly used in
production sites
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| Classification |
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grade |
|
basic weight
(g /㎡) |
|
thickness (mm) |
|
filtration speed
(s/100ml) |
|
retention (㎛) |
|
|
| standard |
|
HA-010 |
|
240 |
|
0.57 |
|
2.5 |
|
1 |
|
|
|
HA-030 |
|
300 |
|
0.84 |
|
2.5 |
|
3 |
|
|
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HA-040 |
|
380 |
|
1.08 |
|
2.5 |
|
4 |
|
|
Similar shape with HA series but this is thicker with higher
burst strength than HA series. Suitable for production
under strong pressure. Suitable for production with
relatively high pressure, The retention rate is in the range
of 1 to 6㎛ which provides a wide range of choice.
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| Classification |
|
grade |
|
basic weight
(g /㎡) |
|
thickness (mm) |
|
filtration speed
(s/100ml) |
|
retention (㎛) |
|
|
| Standard |
|
HC-010 |
|
350 |
|
0.85 |
|
4.0 |
|
1 |
|
|
|
HC-030 |
|
300 |
|
0.80 |
|
3.5 |
|
3 |
|
|
|
HC-050 |
|
125 |
|
0.32 |
|
1.0 |
|
5 |
|
|
|
HC-060 |
|
93 |
|
0.28 |
|
1.0 |
|
6 |
|
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The highest density and the strongest hardness among
industrial filter papers, less fiber breakaway, Suitable for
removal of fine solid matters Products for diverse purposes:
wet strength, crepe and craft filter papers
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|
| Classification |
|
grade |
|
basic weight
(g /㎡) |
|
thickness (mm) |
|
filtration speed
(s/100ml) |
|
Burst
strength
(kPa) |
|
retention (㎛) |
|
|
| Standard |
|
HU-005 |
|
193 |
|
0.60 |
|
288 |
|
245 |
|
0.5 |
|
|
| Wet Strength |
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HU-008 |
|
570 |
|
1.22 |
|
390 |
|
500 |
|
1 |
|
|
| Wet Strength |
|
HU-010 |
|
364 |
|
0.75 |
|
380 |
|
350 |
|
3 |
|
|
| standard |
|
HU-030 |
|
336 |
|
0.75 |
|
120 |
|
250 |
|
5 |
|
|
| Craft |
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HU-035 |
|
265 |
|
0.80 |
|
70 |
|
240 |
|
8 |
|
|
| Craft |
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HU-040 |
|
310 |
|
0.90 |
|
35 |
|
300 |
|
12 |
|
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| Wet Strength |
|
HU-050 |
|
450 |
|
1.85 |
|
7 |
|
150 |
|
14 |
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 Filtration speed ( sec) : By using Herzberg filtration speed tester, filter 100ml of water at 20℃ to an area of 10㎠ with pressure
of 100mH20. The time is measured during filtration.
This has almost accurately correlated to air permeability.
Burst strength ( kPa ) : Burst Strength is determined by Mullen Burst STRENGTH Tester in accordance with JIS P8112.
The strength when filter paper bursts by applying force on filter paper with rubber film. Filter paper maintains its strength due to tangled fiber and H2 bond.
When it is soaked in water, the hydrogen bond is destroyed and the strength is lowered.
However, the strength of wet-strengthened product is not lowered as much when it is soaked in water.
Retention rate ( ㎛ ) : Retention rate is determined by the particle size of the precipitated.
When liquid mixed with evenly distributed dust (7 types of JIS Z8901) is filtered in a consistent condition,
this value is measured when the particle efficiency is 90%.
Filtration condition may vary depending on purposes, filter grade
and filtration condition (pressure, temperature, dust, particle
distribution, shape, Ph/ viscosity of filtrate). Select the most suitable
filter paper for your purposes.
Be sure to conduct an actual test to check the filtered state after filter
paper is selected
Filter papers are usually made of natural cellulose fibers which
absorb moisture and gas. Thus, filter paper should be stored in low
humidity and temperature without direct sunlight.
 In principle, filter paper cannot be recycled.
As filter papers are absorptive, its hardness and surface texture
may vary depending on storage conditions.
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