Down and feathers are extremely popular as high-quality filling material for bedding and clothing. They provide high warmth retention for their light weight. WESSLING tests product quality for manufacturers and producers, from receiving inspection to analysis and certification, quickly and precisely.
Down and feathers impress with their unique insulating properties. For this reason, they are in great demand for a wide variety of consumer products such as bedding and functional clothing. The desired properties depend essentially on the proportion of down and feathers used and their filling power. Therefore, the down and feather industry requires reliable quality tests for production and incoming goods inspections. This is because every manufacturer is obliged to have their down quality tested and classified.
Is product safety your top priority and do you want to have the quality of your down and feathers tested? WESSLING has the expertise to determine your product quality using analytical methods in our independent laboratories according to DIN EN and IDFB. Our high quality standards have been confirmed by multiple round-robin tests conducted by the Association of the German Down and Feather Industry (Verband der Deutschen Daunen- und Federnindustrie - VDFI) and the European Down and Feather Association (EDFA).
In addition to this, WESSLING carries out audits and certifications according to individual customer requirements, for example supplier audits. WESSLING is also the only German testing institute listed by DOWNPASS e.V. and entitled to audit according to the Downpass standard. The purpose of the DOWNPASS seal is to establish uniform standards for nature conservation, environmental protection and animal welfare by assessing producers and suppliers of the down and feather industry and documenting a traceable supply chain.
„With precise, rapid analysis in our independent laboratories and our offers for auditing and certifying your down and feather products, we provide you with proof of the high quality of your goods. Do not hesitate to contact me!“
Bird flu is colloquially referred to as a viral disease of birds. It is transmitted by the influenza A virus H5N1. Bedding that is filled with down and feathers does not represent a potential danger for the transmission of bird flu.
The quantitative composition of feathers and down is determined in accordance with DIN EN 12131 / IDFB part 3 and in conjunction with the labelling of the composition of finished feathers and down as the sole filling material (DIN EN 12934).
Corporate Social Responsibility (CSR) describes a company's voluntary contribution to sustainable development beyond the legal requirements. Corporate Social Responsibility also includes the social responsibility that a company assumes, its sustainable impact on the market, interaction with people, nature, and interest groups.
A distinction is made between live plucking and dead plucking during the production of down and feathers. In dead plucking, also known as slaughter plucking, the down and feathers are removed from the slaughtered poultry.
European Standard 12131 defines the "quantitative composition of feathers and down". In this phase, the test equipment, the steps from sampling to separation and the test report are defined.
European Standard 12934 is intended to indicate the "composition of finished feathers and down as the sole filling material".
The European standard 1885 is used for the "naming and definition of feathers and down". The naming and definition takes place with regard to structure, animal species and other characteristics, such as damage.
Down is the undercoat of water-winged birds (ducks and geese) - land poultry such as chickens have no down.
Down is a genus of its own from which no feathers develop. They occur predominantly in the chest area and form a heat-protecting sheath there. Down is a flaky, three-dimensional structure with a barely visible core from which silky soft hairs with many shoots emerge. Thanks to their shape and the shoots, air cushions are created, which provide enormous thermal insulation.
Down is an excellent filling for duvets, because in addition to its insulating properties, down, unlike feathers, is very light. An individual down weighs between 0.001 - 0.002 grams. One kilo of goose down requires between 250,000 and 400,000 individual down.
For a covering to be able to be classified as a down duvet, the filling must contain at least 60% down.
Duck feathers are strongly curved and stocky in shape. Duck feathers are smaller than goose feathers and taper towards the top.
European Down and Feather Association - International membership organisation for associations of the bed-feather industry
This association was founded in 1980 and has its headquarters in Mainz. Its task is to represent the interests of the members of the bed-feather industry in Europe in a sustainable way.
Eider down comes from the eider duck, which is native to northern coastal areas such as Iceland, Greenland and Northern Canada. This particularly high-quality down is smaller and lighter than a goose or duck down, but has much more filling power: One kilo requires between 500 000 and 1 million eiderdown. Their lightness and yet high thermal insulation make them a unique natural filling to help ensure a good night sleep. Unlike goose or duck down, eiderdown is not a by-product of slaughter production. Rather, they are harvested by certified farmers in laborious manual labour from the nests abandoned after the brood. The eider duck insulates the nest with its fluff to protect the eggs from the Arctic cold. After the hatching season, the eider duck leaves its nest with its chicks – back into its natural habitat, the water.
Feathers are a bird’s outer protection against water and cold. In addition, they serve the bird as support for flight and camouflage. Due to their elasticity and insulating properties, waterfowl feathers, such as ducks and geese, are often used as a filling for duvets and pillows. In general, the two-dimensional structure consists of a keel and a plume (the feather hairs). Optically, goose and duck feathers can be easily distinguished by a few features. Goose feathers are larger than duck feathers and run straight to the upper end – they therefore often appear cut off. Duck feathers, on the other hand, are smaller and taper at the end.
The filling weight is the filling mass contained in a bedding product (e.g. pillows) – excluding the cover. The filling weight should not be confused with fill power.
The fill power indicates how much down expands back into its original volume after a load. This force is measured in cubic inches (CUIN). In other words, the higher the fill power, the better the thermal insulation. High-quality down achieves a fill power of 700-800 cuin. The fill power is determined in accordance with EN 12130 / IDFB part 1.
Goose feathers are curved and stocky in shape, but still larger than duck feathers. The flag end of a goose feather looks as if it had just been cut off at the top. The keel of a full-grown feather is blunt and round. At the lower end there is usually a rich down.
The hygiene and purity requirements are in accordance with EN 12935, which assesses the microbiological condition. The test procedures for determining the microbiological condition are described in DIN EN 1884.
The International Down and Feather Bureau (IDFB) is an international association for the down and feather industry. Its aim is to ensure for consumers the purity of down and feathers.
Land poultry include turkeys and chickens.
The production of down and feathers is done by plucking – an exception is the production of eiderdown (which is collected from abandoned nests).
A distinction is made between dead plucking and live plucking. Live plucking may only be carried out in accordance with certain rules, such as the European Convention for the Protection of Animals kept for Farming Purposes, the standard for keeping plucked geese, or national animal welfare legislation. Improper live plucking is prohibited.
The natural shedding of bird feathers is called moult. The process is hormonally controlled and occurs at regular intervals.
Moulting is a naturally occurring process in which fowl shed their plumage while a new layer of down/feathers forms. At this time moulting can be carried out under certain rules.
The test procedures for determining the microbiological condition are described in DIN EN 1884.
The moisture content is determined in accordance with EN 1161 / IDFB part 5. Moisture content is determined gravimetrically by drying.
Unlike recycled feathers, new feathers after plucking have never been used as filling material.
Oil and fat content is determined in accordance with EN 1163 / IDFB part 4. This standard describes the procedure for determining the quantity of dichloromethane soluble components.
The oxygen number is determined according to EN 1162 / IDFB part 7. This standard describes the procedure for determining the oxygen number of feathers and down by titration.
Percale (also called cambric) is a closely woven plain weave fabric that is mainly used for duvets because of its lower weight per square metre.
The pH value of the aqueous extract is determined according to DIN EN ISO 3071 / IDFB part 6.
A feather is classified as a processed feather when it has undergone all the processing steps including washing, drying and all hygienic treatments.
The purity requirements are in accordance with EN 12935, which assesses the microbiological condition. The test procedures for determining the microbiological condition are described in DIN EN 1884.
Recycled feathers are feathers that have already been used as filling material. To reuse them, they are washed again, dried and hygienically treated.
A ticking is a dense twill or alta fabric, which is feather- or downtight. Usually a ticking is made of cotton. Ticking is mainly used for pillows and duvets.
Traumpass is a quality seal for products filled with down and feathers. The labelled products must correspond to the highest classes (I and II according to DIN EN 12934). Control association Traumpass e.V.
The determination of the turbidity of an aqueous extract is carried out according to EN 1164 / IDFB part 6. The standard specifies a procedure by which finished feathers and down are checked for their cleanliness by determining the content of undissolved and dissolved components in the aqueous extract.
Our international customers rely on the many years of experience of our experts and the rapid analysis results of our accredited laboratories. We provide extensive on-site service through a network of sites in the major producing countries, including China.