A down jacket is unqualified, go through physical, chemical and other project detection.And down jacket and other textile and garment is different filler is down, so down the eligibility is quite important.Products according to the national standards GB/T 14272-2011 "clothing" requirement, feather is qualified after ten projects of testing to determine.According to the requirements of the product standards, tested and meet the requirements of relevant indicators of product, is the product can be at ease.
1, RongLiang filling test

After the constant temperature and humidity treatment was carried out on the down jacket, down jacket overall weighing to remove, separate the feather padding and apparel fabrics.Because feather small volume and light, easy scattered, easy to loss, so can not directly say take down draw down jacket RongLiang filling weight, but should use the weight minus the total weight down jacket fabrics, calculate the RongLiang filling.

2, downcontent test
Downcontent: wool and wool yarn percentage content in the feather.

In the feather testing experiments, downcontent, wool content detection is the most time-consuming.Testing personnel need to add 4 g sample of velvet, velvet, feather, feather silk and impurities were picked out, such as computing the percentage of wool and wool yarn for sample content for a quick downcontent.Detection and downcontent also is one of the most important in the feather testing experiment, because downcontent reaction down the stand or fall of quality high and low, warm effect and economic value.

3, volume test
The flexibility of their volume: feather feather.

According to the regulations of the standard weigh and down 28.5 g, after pretreatment by shaking into the volume meter, full with a glass rod mixing and paving.Into the aluminum plate, 1 minutes record the fluffy barrels of two wall scale value, take the average.Repeat the experiment three times, volume measurements.High volume of clothes, relatively warm effect is better.

4, moisture rate test
Moisture rate: feather down the percentage of moisture content.
Without the mixed specimens from miniature feathers around 100 g (about 50 g) down two, pay attention to when you pick up the pack sample not hygroscopic and moisture, sample loading container to seal.The sample evenly on two hanging basket into oven thermostat, each weighing, that is the original sample quality.Ventilation, heating temperature of 105 ℃ + 2 ℃, every 30 min weighing, to constant weight.After a quick dry sample quality.According to the original sample quality, after drying quality, moisture content, take two sample average.
5, the fat rate of detection
The residual fat is residual lipid on the feather.
Sample drying to constant weight, according to take sample (4 ~ 5 g, feather down 2 ~ 3 g) 2, wrapped in quantitative filter paper, and together with the air filter paper into three soxhlet extractor immersion extraction apparatus.Upper from leaching device into about 120 ml anhydrous diethyl ether, connected to the condenser.Will receive a bottle on the constant temperature water bath pot, reflux (extraction) 4 hours.Clip from leaching after reflow, use the remove samples, drying solvent, connected to the condenser or rotary evaporation recovery ethyl ether.Will three receiving flask into the oven drying to constant weight.According to the standard calculating the residual rate of fat, take two sample average.
6, cleanliness testing
Cleanliness: feather cleaning degree.
Weigh and feathers, feather sample 10 g + / - 0.1 g, add 3000 ml of triangle in the bottle, add 1000 ml of distilled water, soaking, shock, filtered to get samples.Not less than 600 lx in light of the natural light, to shake the sample mixture to clean the processed scale transparency within the meter to 600 mm, let stand for one minute, to observe the bottom of the double cross hair.If can't see clearly, released slowly from the bottom sample liquid, until see the bottom of the double cross hair.A record at the bottom of the cylinder wall concave on the surface of the liquid in the wall of the scale, the scale value is the cleanliness.
7, oxygen consumption test

Oxygen consumption: in 100 g sample, the consumption of oxygen on the number of milligrams.According to the standard for making 3 moL/L sulfuric acid solution, 0.02 moL/L of potassium permanganate solution.Preparation of samples with cleanliness method.With transfer pipette 100 ml sample liquid (distilled water, 100 ml do blank test) placed in a triangle in the beaker, add 3 mol/L sulfuric acid 2 ml.Drip with micro burette 0.02 moL/L of potassium permanganate solution to the finish line, record the consumption of potassium permanganate ml number respectively, through the oxygen consumption is calculated.Oxygen consumption level is closely related to the microbial indicators of overweight or not.

8, smell detection
The taste of smell refers to feather down.
Take around 50 g of feather down into a container with cover, no peculiar smell.To extract the sample on the seal for 24 h at room temperature, three smell normal inspectors to do judgment.When two people in the three evaluation results at the same time as the assessment results.The odor intensity into category 4.Level 0: without peculiar smell;Level 1: very weak;Level 2: weak;Level 3: obviously.
9, microbial detection
When samples of oxygen consumption is not more than 10 mg / 100 g, does not need to feather duvets microbial indicators.
Microbial measurement includes:
Addicted to warm aerobic bacteria detection
Addicted to warm aerobe: in 36 ℃, plus or minus 2 ℃ temperature development of microbes in the oxygen, is mainly the content of bacteria.Through cultivation cases the total number of colonies, which is used to determine the feather products by bacteria pollution degree and the quality of health, which reflects feather products in the process of production is in line with the hygiene requirements.Addicted to warm aerobic bacteria can cause human respiratory tract, intestinal disease and symptom such as skin allergies, itching, harm to consumers' health.
Streptococcus faecalis test
Streptococcus faecalis more comes from animal waste, if the indicator is unqualified, can cause human endocarditis, meningitis, suppurative abdominal infection, sepsis, diarrhea, fever, a variety of diseases such as urinary tract infections.
Sulfurous acid reductive clostridium detection
Sulfurous acid reductive clostridium can survive in the nature of time for a long time, even after appropriate processing feather will still alive, so often referred to as long-term pollution or intermittent pollution indicator bacteria.The bacteria is one of the main microbial indicators in feather down detection, is also the main contaminated bacteria causing unqualified products.
Salmonella detection

In nature, salmonella widely parasitic poultry such as chicken, duck, goose, lumen if ill after slaughtered animals used for processing and clothing are more likely to spread germs.Therefore, salmonella and feather products doing biological indicators shall be checked in the project.

10, fabric drilling pile testing
Sample preparation, sampling along the seam down jacket tank yan or according to the customer to provide fabric and down the sample.After sample in a resealable plastic bag and placed into the drilling pile friction law tester, counter set 2700 turn, after the friction to stop, the sample bag out of the plastic bags, plastic bags all implants should count, the sample bag in the right light, into the fabric surface is greater than 2 mm padding to be count.If the number is greater than 50 root, count to terminate.Less than 50, with two sample drilling pile number of arithmetic average value as the final result.