USA Agency for OKUMURA		 Deodorant Thread
Deodorey
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Frequently Asked Questions about Deodorizing Thread and its Applications
1. About Deodorizing thread and its applications.

2. About Body odors and Others.

3. About Standards for Deodorizing Products
About Standards for Anti-bacterial Products
3-1. Standards for Deodorizing Products
3-2. Standards for Anti-bacterial Product
3-1. Standards for Deodorizing Products
3-1-1 Q: Are there any standards for "Deodorizing Products" in Japan?

A: Yes, there is.
In Japan, the standards "Deodorant processed textiles certification criteria" is published by "Japan Textile Evaluation Technology Council" which is authorized as a Public-service corporation by Ministry of Economy, Trade and Industry.
3-1-2 Q: What is the organization of certification for "Deodorizing Products" in Japan?

A: It is a Public-service corporation "Japan Textile Evaluation Technology Council", which is the laboratory certified by the official under Japan Industrial Standardization Law (JIS).

The textile products which comply with the standards"Deodorant processed textiles certification criteria" are allowed to be called "Deodorizing products", which can deodorize either of Sweat odors, Aged-body odors, Excrement odors, Tobacco odors, Garbage odors or Ammonia odor.

(*) See the website www.sengikyo.or.jp to get more information about "Japan Textile Evaluation Technology Council".
3-1-3 Q: What organization can I ask for the examination of our product in Japan?
A: Currently, five organizations are designated as examining authority by "Japan Textile Evaluation Technology Council". They examine the product based on the standards "Deodorant processed textiles certification criteria", and issue the test results.
3-1-4 Q: What are the subjects of the examination as odor component?
A: According to the standards "Deodorant processed textiles certification criteria", they are 10 kinds of gases - Ammonia, Acetic acid, Isovaleric acid, Nonenal, Methanethiol (Methyl mercaptan), Hydrogen sulfide, Indole, Acetaldehyde, Pyridine and Trimethylamine.
3-1-5 Q: How are the odors classified by the organization of certification? And, what are the components for each?
A: According to the standards "Deodorant processed textiles certification criteria", the odors are classified as follows;
     (1) Sweat odors: Ammonia, Acetic acid and Isovaleric acid.
     (2) Aged-body odors: Ammonia, Acetic acid, Isovaleric acid and Nonenal.
     (3) Excrement odors: Ammonia, Acetic acid, Methanethiol (Methyl mercaptan),
            Hydrogen sulfide and Indole.
     (4) Tobacco odors: Ammonia, Acetic acid, Acetaldehyde, Pyridine and Hydrogen sulfide.
     (5) Garbage odors: Hydrogen sulfide, Methanethiol (Methyl mercaptan), Trimethylamine
           and Ammonia.
     (6) Ammonia odor: Ammonia.
3-1-6 Q: How do the designated examining authorities examine a product and evaluate it?
A: According to the standards "Deodorant processed textiles certification criteria", a sample is examined by an instrumental analysis and a sensory evaluation after being washed designated times (3-10 times).
[Methods]
   (A) Instrumental analysis: Detector Tube or Gas Chromatography.
   (B) Sensory evaluation: 6 panels.
[Applied Methods to each gas]
    (1) Ammonia: evaluated by (A) Detector Tube & (B) Sensory evaluation.
   (2) Acetic acid: evaluated by (A) Detector Tube & (B) Sensory evaluation.
    (3) Methanethiol (Methyl mercaptan): evaluated by (A) Detector Tube & (B) Sensory evaluation
    (4) Hydrogen sulfide: evaluated by (A) Detector Tube & (B) Sensory evaluation.
    (5) Acetaldehyde: evaluated by (A) Detector Tube & (B) Sensory evaluation.
    (6) Pyridine: evaluated by (A) Detector Tube & (B) Sensory evaluation.
    (7) Trimethylamine: evaluated by (A) Detector Tube & (B) Sensory evaluation.
   (8) Isovaleric acid: evaluated by (A) Gas Chromatography & (B) Sensory evaluation
   (9) Nonenal: evaluated by (A) Gas Chromatography & (B) Sensory evaluation
   (10) Indole: evaluated by (A) Gas Chromatography & (B) Sensory evaluation.

 [Evaluation]
    The reducing rate of gas in two hours must equal the predetermined rate or exceed it;
   (1) Ammonia: 70% or more.
   (2) Acetic acid: 80% or more.
   (3) Methanethiol (Methyl mercaptan): 70% or more.
   (4) Hydrogen sulfide: 70% or more.
  (5) Acetaldehyde: 70% or more.
   (6) Pyridine: 70% or more.
   (7) Trimethylamine: 70% or more.
   (8) Isovaleric acid: 85% or more.
  (9) Nonenal: 75% or more.
  (10) Indole: 70% or more.
In addition, 5 panels out of 6 must judge the gas concentration in two hours to be less than the predetermined rate in a sensory evaluation.
3-1-7  Q: In Japan, can we sell the product, which is partially using a "Deodorizing product", as a certified Deodorizing product?

A: No, you cannot.
You need to apply your product to the organization of certification for "Deodorizing Products" in Japan.
3-2. Standards for Anti-bacterial Products in Japan
3-2-1 Q: Are there any standards for "Anti-bacterial products" in Japan?

Yes, there is.
In Japan, the standards "Anti-bacterial fiber product certification criteria" is published by "Japan Textile Evaluation Technology Council" which is authorized as a Public-service corporation by Ministry of Economy, Trade and Industry.
3-2-2 Q: What is the organization of certification for "Anti-bacterial products" in Japan?

A: It is a Public-service corporation "Japan Textile Evaluation Technology Council", which is the laboratory certified by the official under Japan Industrial Standardization Law (JIS).
The textile products which comply with the standards "Anti-bacterial fiber product certification criteria" are allowed to be called "Anti-bacterial products", which can prevent staphylococcus aureus from propagating below the predetermined level.
(*) See the website www.sengikyo.or.jp to get more information about "Japan Textile Evaluation Technology Council"..
3-2-3 Q: What organization can I ask for the examination of our product in Japan?
Currently, seven organizations are designated as examining authority by "Japan Textile Evaluation Technology Council". They examine the product based on the standards "Anti-bacterial fiber product certification criteria", and issue the test results.
3-2-4 Q: What are the subjects of the examination as bacteria?
A: According to the standards "Anti-bacterial fiber product certification criteria", the subject is staphylococcus aureus only.
3-2-5 Q: How do the designated examining authorities examine a product?
A: According to the standards "Anti-bacterial fiber product certification criteria", a sample is examined by Absorption Method after being washed designated times (3-10 times). And, the number of bacteria colonies in 18 hours is counted by Colony Method or ATP Method (Adenosine Triphosphatase Method). These methods are applied according to Japan Industrial Standard - JIS L 1902.
3-2-6 Q: How do the designated examining authorities evaluate a product?

A: Three samples of Anti-bacteria fabric and Non-anti-bacteria fabric for each are used.
In the case of Colony Method,
[A] If (S=2.2 or S>2.2) and (Mb-Ma=1.0 or Mb-Ma>1.0), then the positive test result of
        "Anti-bacterial effect" is issued.
[B] If (S<2.2) and (Ma>Mo>Mc or Ma>Mo=Mc) and (Mb-Mc=2.2 or Mb-Mc>2.2), then the positive
       test result of "Anti-bacterial effect" is issued.
Where;
      S=(Mb-Ma)-(Mc-Mo)
      Mb=(log10Nb1 + log10Nb2 + log10Nb3)/3
      Ma=(log10Na1 + log10Na2 + log10Na3)/3
      Mc=(log10Nc1 + log10Nc2 + log10Nc3)/3
      Mo=(log10No1 + log10No2 + log10No3)/3
      Nb1, Nb2 and Nb3: Number of bacteria colonies on the Non-anti-bacterial fabric in 18 hours.
      Na1, Na2 and Na3: Initial number of bacteria colonies on the Non-anti-bacterial fabric.
      Nc1, Nc2 and Nc3: Number of bacteria colonies on the Anti-bacterial fabric in 18 hours.
      No1, No2 and No3: Initial number of bacteria colonies on the Anti-bacterial fabric.
      log10: Common logarithm. (When log10X=2, X=100.)

Very roughly speaking, "Anti-bacterial products" can prevent staphylococcus aureus from propagating effectively more than 100 times compared with Non-anti-bacterial products.
3-2-7 Q: In Japan, can we sell the product, which is partially using an "Anti-bacterial product", as a certified Anti-bacterial product?

A: No, you cannot.
You need to apply your product to the organization of certification for "Anti-bacterial products" in Japan.
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