When new clothes are just bought back, they sometimes have a bad smell, especially for some clothes purchased online, which have a stronger taste, and some of them can not be removed after repeated washing. Consumers need to be careful about the odors in clothes. Some odors are not only uncomfortable, but may also affect physical health.
2. What are the standards and requirements for the odor of textile products?
3. The textile products in GB 18401-2010 "National Basic Safety Technical Specification for Textile Products" require no odor. The smell is detected by the olfactory method, and the operator should be a trained and assessed professional. The inspector carefully smells the odor of the sample. If one or more of moldy smell, high boiling range petroleum smell (such as gasoline, kerosene smell), fishy smell, aromatic hydrocarbon smell is detected, it is determined as "Smell odor", while recording the odor category. Otherwise, it is judged as "no odor".
Testing precautions:
(1) After the sample is opened, test immediately;
(2) Detection in a clean environment without abnormal odors;
(3) The inspectors need to wash their hands and wear gloves;
(4) Independent testing is required for 2 or 3 people, and the result of the 2 people is the final sample test result.
Odor Source:
(1) The musty smell is generally the smell produced by microbial metabolism. As long as there is a suitable temperature and humidity environment, textile products may have microbial metabolism during transportation, storage and use.
(2) The high boiling range petroleum odor comes from some oils used in machinery during clothing production, or in the production of textiles, using additives containing gasoline, kerosene, etc. as lubricants.
(3) The fishy smell is mainly the smell of trimethylamine, a by-product produced during the baking process after textiles are treated with resin.
(4) Aromatic hydrocarbon odor is generated during the production, printing and dyeing and finishing of textiles and garments. The auxiliaries used contain aromatic hydrocarbon compounds.
note:
The off-flavor in the standard refers to some kinds of abnormal taste, but not to any abnormal taste.
4
FZ / T 20027-2014 "Determination method for odor of cashmere products", applicable to cashmere products. The odor in this standard refers to one or more of the volatilized, petrol, kerosene, diesel, fishy, aromatic hydrocarbon odor, unwashed animal fiber odor, and odor in cashmere products. .
Detection principle: Take a certain amount of cashmere products, put them in an odorless container and seal them, and equilibrate them for a certain period of time under the specified temperature conditions. After sniffing, the test personnel will judge whether there is an odor according to the type of odor.
Evaluation of test results: Three testers were used to make odor evaluations, and the evaluation results of at least two testers were used as the final result of odor detection.
5
GB / T 28024-2011 "Determination of odor of woven fiber products" is applicable to woven fiber products. The odor refers to the odor mentioned in GB 18383 "General Technical Requirements for Fiber Products for Flocking", including musty, gasoline, kerosene, diesel, fishy, aromatic, odor of unwashed animal fiber, and odor .
Detection principle: Take a certain amount of fiber products for batting, put it in an odorless container and seal it, and equilibrate it for a certain period of time under the specified temperature conditions. After the inspector sniffs, determine whether there is an odor according to the type of odor. If you smell one or more of mildew, gasoline, kerosene, diesel, fishy smell, aromatic hydrocarbon, unwashed animal fiber smell, or smell, it is judged as "offensive smell". , While recording the odor category; otherwise, it is judged as "no odor".
Evaluation of test results: Three testers were used to make odor evaluations, and the evaluation results of at least two testers were used as the final result of odor detection.
6
In GB / T 14272-2011 "Down Clothing", the odor detection of feathers and downs is based on a odorless container with a lid, and 50g of feathers and downs are uniformly taken into the container, and the sample is sealed at room temperature. After being left for 24 hours, three inspectors with normal sense of smell will make judgments about the smell of feathers and down in the container.
Evaluation of test results: When the evaluation results of two of the three testers are the same, this is used as the evaluation result. The result is expressed by the intensity level, and the intensity level of the odor is divided into 4 levels. The standard requires that the odor level of feathers and downs is ≤ 2 levels.
