FILTER PAPER
Glass Fiber Filter
pH Test Paper
Qualitative Filter Paper
Quantitative Filter Paper
Industrial Filter Paper
Depth Filter Sheet
FILTERFILTER PAPERIndustrial Filter Paper

INDUSTRIAL FILTER PAPER







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

Classification 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
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.


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




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

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 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 HU-035 265 0.80 70 240 8
Craft HU-040 310 0.90 35 300 12
Wet Strength HU-050 450 1.85 7 150 14
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.