Deodorizing "DEOGLA"

Advanced Glass

About “DEOGLA”

The material itself has a unique deodorizing function within the glass. DEOGLA is based on powder.

Line Up

DEOGLA has two types named as “TYPE 1” and “TYPE 2.”

DEOGLA “TYPE 1” converts the odor to a different substance by a catalytic action of metal components embedded in the glass.

DEOGLA “TYPE 2” is based on dissolving glass, as acid glass gradually dissolves, it neutralizes the basic odor.

Features

  • As the deodorizing function is not based on absorption, the function does not decade or saturate. Due to such circumstances, deodorizing efficacy is maintained throughout the duration even after repeated test is conducted.
  • Possible to combine both “TYPE 1” and “TYPE 2” depending on the requirements of functions.
  • High heat resistance. Function does not decay even at 500 degree C.
  • Function is maintained even in high humid environment.
  • High level of safety.

Target Odor

  • Possible to work against four kinds of major odor combining both “TYPE 1” and “TYPE 2.”

Four Major Odors

Malodorous substance Characteristics Odor Sources Deodorizing Glass
Type 1 Type 2
Ammonia
NH3
Alkaline Feces and urine with
the irritating odor
Sweat, Excrement, Garbage
Trimethylamine
(CH3)3N
Alkaline Rotten Fish Garbage
Hydrogen sulfide
H2S
Acidity Rotten Egg Excrement,
Garbage
Methyl mercaptan
CH3SH
Weak Acidity Rotten Onion Excrement,
Garbage

The Odors of Lower Fatty Acids

  • DEOGLA “TYPE 1” is suggested targeting;

  • Acetic acid (sweat odor),
  • Propionic acid (corruption smell, vomit and excreta),
  • Butyric acid (sweat, horse droppings),
  • Valeric acid (sweated socks and feet smell),
  • Isovaleric acid (fermented cheese smell, sweated feet smell)

Safety Test Results Summary

Test Item Results
Acute Oral Toxicity More than LD50 2000mg/kg (rat)
Not classified under GHS
Primary Skin Irritation Negative (rabbit)
Not classified under GHS
Skin Sensitization Negative (guinea pig)
Not classified under GHS
Mutagenicity Negative (E.coli, Staph.aureus, In vitro)
Not classified under GHS

Test Results

Deodorizing performance against ammonia (primary)

1)Sample:Socks

2)Outline of test:The sample 100cm2 was tested in a 5L plastic bag.
The odor gas concentration in the bag was measured by a gas detecting tube time to time.

Concentration[ppm] Deodorizing ratio[%]
Time[h] 0 2 24 2 24
Blank 1st 104 90 82 - -
Ishizuka 1st 76 20 12 78 85
Competitor 1st 78 20 16 78 80

Deodorizing performance against ammonia (durability1)

The tested socks sample was re-tested after one wash cycle.

Concentration[ppm] Deodorizing ratio[%]
Time[h] 0 2 24 2 24
Blank 2nd 100 100 72 - -
Ishizuka 2nd 80 30 20 70 72
Competitor 2nd 64 38 32 62 56

Deodorizing performance against ammonia (durability2)

The twice-tested socks sample was re-tested after two wash cycles.

Concentration[ppm] Deodorizing ratio[%]
Time[h] 0 2 24 2 24
Blank 3rd 100 100 74 - -
Ishizuka 3rd 66 28 20 72 73
Competitor 3rd 78 48 40 52 46

Summary

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