Down and Feather TestingHow to apply for a report? What items need to be tested? We will conduct testing and evaluation in strict accordance with the standards. We can also provide personalized testing plans and reports according to your needs.

The method of down feather testing mainly includes the testing and evaluation of multiple key indicators. The following is a detailed test method:

1. Down content test
Down content refers to the percentage of down and down fibers in down feathers. High down content indicates better thermal insulation performance. The test method usually involves the following steps:

Sample preparation: Take samples from down products to ensure that the samples are representative.

Separate components: The tester needs to pick out the down, down fibers, hair pieces, feather fibers, and impurities in the sample.

Calculate the proportion: Calculate the percentage of down and down fibers in the sample content to get the down content.

2. Fluffiness test
Fluffiness is an important indicator for measuring the thermal insulation performance of down. When testing, the following steps are usually followed:

Sample pretreatment: Pre-treat the downsample, such as constant temperature and humidity treatment.

Measurement process: Weigh a certain amount of downsampling, shake it into the fluffiness meter one by one, stir it thoroughly with a glass rod, and flatten it. Put in an aluminum pressing plate, record the scale values ​​on the two walls of the fluffiness meter barrel after 1 minute, and take the average value. Repeat the experiment three times to get the fluffiness measurement value.
3. Cleanliness test
Cleanliness is used to evaluate the cleanliness of down feathers to ensure that there is no excessive dust, grease, or other impurities. The test methods include:
Preparation of test solution: Add the downsample to distilled water, oscillate the oscillator for a certain period of time, and filter it with a sieve.
Observation of residue: Filter the down-cleaning solution and observe the residual impurities and turbidity in the filtered water. Only down jackets with a cleanliness of 350mm or more can be identified as qualified.
4. Odor detection
Odor detection is intended to ensure that the down has no unpleasant odor that affects the consumer's experience. The test method usually involves:
Olfaction evaluation: Professionals directly judge whether the downsample has an odor through smell. If a certain number of multiple testers assess that there is an odor, the down jacket is judged to be unqualified in the washing process during the production process.
5. Filling amount detection
The filling amount refers to the weight of the down filling of the down jacket. The testing methods usually include:

Overall weighing: After the down jacket is subjected to constant temperature and humidity treatment, the down jacket is weighed as a whole.
Separate the filling: Disassemble the down jacket to separate the down filling and the clothing fabric.
Calculate the filling amount: Subtract the fabric weight from the total weight of the down jacket to calculate the filling amount.
VI. Other testing items
In addition to the above main testing items, the testing of down feathers may also include:

Down content: Detect the specific content of down in the down.
Moisture content: Evaluate the moisture content in down feathers. Too high a moisture content may lead to decreased warmth retention and microbial growth.
Residual fat rate: Detect the fat content in goose and duck down to measure the quality of washing.
Oxygen consumption: Detect the content of reducing substances on the down through chemical reactions to reflect the cleanliness of the down.
Colorfastness: Evaluate the color stability of down products.
Formaldehyde content: Detect whether there is excessive formaldehyde in the down to ensure the safety of the product.
Down type identification: Determine the type of down, such as goose down, duck down, etc.
Microbiological testing: testing whether the down contains harmful microorganisms such as mesophilic aerobic bacteria, fecal streptococci, sulfite-reducing Clostridium, and Salmonella.
Anti-drilling performance testing: evaluating the ability of down products to prevent down from drilling out.
VII. Testing standards and institutions
Down testing mainly follows ISO 23166 (method for determining the filling power of down and feathers) and GB/T 14272 (Chinese down clothing standard) internationally. Testing is usually carried out by professional third-party testing institutions, which have advanced testing equipment and professional testing personnel and can issue test reports accurately and quickly.

In summary, the testing methods for down and feathers involve multiple aspects, and each testing item has its specific steps and standards. Through comprehensive testing, the quality and safety of down products can be ensured, and accurate product information can be provided to consumers to help them make wise purchasing decisions.

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