DE2349235A1 - Filling for padded cushions of chemicals and natural feathers - is obtained in a mixing chamber supplied with specific proportions of each - Google Patents

Abstract

The filling for upholstered cushions each comprises a mixture of loosened chemicals fibres and natural feathers, e.g. down, which are mixed together in certain proportions so that the natural feathers are loosely enclosed by the chemical fibres so that the resultant padding has excellent spring-back properties owing to the chemical materials whilst the natural feathers are extremely soft and provide the hygroscopic features. The padding is obtained by supplying a certain amount of loose fibres at high speed into the mixing container containing a weighted proportion of natural feathers which are kept in a state of motion so that intensive mixing takes place until a practically inseparable mixture is obtained.

Description

Manfred Richter company, down pillows and beds factory 7867 Wehr / Baden

Filler for upholstery cushions and the like, as well as processes for its manufacture

The invention relates to a filler for upholstery cushions and the like, as well as a method for producing a such filler »

A variety of requirements are placed on fillers of the aforementioned Ixt =, they serve as an egg layer for upholstery cushions, seat cushions and other upholstery parts "_ where" with regard to the desired fooiien Sitskorafort eise sufficient © t'Jsiclslieit ^ £ sis <sliai © gss! fflk @ it " Giß eatspre = - existing backflow _ff sufficient aä Elast is ItIt ₇ © ia

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comfort is EdLt csia © a filler © rsiQlbas-p ά @ τ mi Gsmisch tob Eettfoda ^ a wmü Baisaea IbdstelTffco filler is particularly soft _ff snsetaslexible elastic and causes a very good hold »This results in particular r © also from it,? If such a filler sat ± m lBsaraaenhaag ait © in®ia spr, echeraä darsfellssigois Haterisl © iasr KisseiaMIli © ai to an issnangeneaiisa "WSicas-ianä moisture

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as is the case with almost all plastics. The natural products used in the filler mentioned are very popular and are very common for beds and Clothing used, some of which only a very thin envelope of the filler is present and in which thus there is even more direct body contact than upholstered cushions.

As a filler for upholstery cushions _? Beds and clothing and the like used natural feathers in the form of bed feathers and down, however, poses a considerable problem - the steadily growing demand is already not and certainly not in the future covered by natural raw material sources AaoS's demand for ever greater comfort leads to © rfee'foliefoem Besehaffeag © = and Fireisprofolemesu With upholstery parts, oat fillers already belong in the exclusive Kon · = due to their high price

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parts for the reasons mentioned are of a chemical nature, with man-made fibers or chemical materials in the form of Foams and the like can be used. Synthetic fiber fillers correspond in terms of their softness largely a downy seating comfort, although it is noticeably unpleasant compared to natural fillers The build-up of heat and moisture can hardly be avoided because, for example, the hygroscopic behavior of natural fillers has so far been the case could not be mimicked with synthetic fillers. This problem affects fillers for beds and clothing because of the direct contact is particularly disadvantageous and can be largely in the case of upholstery parts with comparatively thick covers lack of direct contact at least partially accepted. However, carry upholstery parts For the reasons mentioned, purely synthetic fillers often also lead to uncomfortable sitting behavior. Of the The considerable advantage of synthetic fillers, such as man-made fibers, is that they have a significant advantage over natural feathers better ability to get up again, which means that it is easier to care for and has a longer service life than conventional Natural feather fillings result in ". The shaking required for down pillows, for example, after use can be completely or largely avoided with synthetic fillers.

The object of the invention is to create a filler of the type mentioned and a method for Production of this filler, in which on the one hand the consumption-related lack of natural substances and on the other hand the comparatively large capacities of the chemical industry are taken into account. It's supposed to be easy to manufacture Filler can be created that is wide

r frame is applicable and has a pleasant and practical usage behavior. The filler is said to be relatively inexpensive and to have good resilience.

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The solution to the problem is achieved with a filler of the type mentioned, which is a mixture of loosened man-made fibers and natural feathers, such as bed feathers and / or down.

The main advantage of the invention is that the filler mixture contains the man-made fibers and natural feathers Adhering advantages combines without the disadvantages of man-made fibers, for example in hygroscopic Respect, noticeably emerge. The proportion of natural feathers required, for example, for upholstery parts can be considerable be reduced, which benefits the rest of the consumption requirements for beds, clothing and the like. The new Filler can be produced easily and inexpensively And because of the man-made fiber content, it has a better resilience than pure natural feathers. Through this maintenance is made easier and the service life is increased. The filler according to the invention enables a pure natural feathers practically completely corresponding down-like sitting behavior. In addition, he points to the natural filler is easier and more practical to handle with a cost saving of around 3o%. Because of the high quality of the filler according to the invention, considerable amounts of those previously used for upholstery parts can be used Natural feathers accessible to other areas of need are made on which so far no substitute for natural substances has been possible without disadvantage.

In an advantageous embodiment, the natural feathers are from surround the opened man-made fibers in the manner of a loose wrapping or wrapping. By such a connection The two raw materials result in a coherent combination product with excellent resilience and also otherwise excellent filler properties. Apart from the possibility of the man-made fibers

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without such wrapping or wrapping with the Mixing natural feathers creates a close connection between the two Fabrics for a much more practical and pleasant handling. The extremely soft and hygroscopic In terms of very cheap natural feathers, the synthetic fibers surrounding them give them the ability to stand up again, this leads to the fact that an upholstery part filled with such a filler always returns after the load is removed assumes its original shape. In addition, the close integration of the two starting materials results in a separation avoided during use.

Instead, however, it is also possible that the mixture is mixed with loose synthetic fiber balls mixed with the natural feathers in the form of down-like beads or flakes. Such a mixture is extremely easy to prepare, as there is no intensive connection between the two raw materials. The chemical fiber balls provide a more satisfactory basis for this Softness and other favorable properties provide the filler with the necessary resilience, while the Natural feathers that make up especially their own cushioning properties and a build-up of heat and moisture Prevent filler. These mixed components can be used separately are manufactured and traded, which extends the field of application.

In a further embodiment it is provided that the mixing ratio of man-made fibers and natural feathers to the desired Upholstery behavior is closely matched, with a higher proportion of synthetic fibers to an increased back pressure or the ability to stand up again and an increased proportion of natural feathers to one more down-like behavior. By varying the mixing ratio, different fillers can be achieved where the special cost problems and demands of the respective consumer groups are taken into account

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are. Especially when using under the natural feathers Mixed chemical fiber balls can be the real setting the mixing ratio can also only take place during or after the purchase, with only a mixture of both Starting materials is necessary. This also makes it possible that, for example, upholstery parts of different types with a such filler of different mixing ratios are filled, with the respective use stress can be taken into account. As a result, more decorative and less comfortable seating can be used have a larger proportion of man-made fibers, while those upholstery parts that improve the actual seating comfort serve, are provided with a larger proportion of natural feathers. This adaptation and variation of the mixing ratios gives the filler according to the invention a practically unlimited effect Area of use, whereby an adaptation to requirements applicable to beds and clothing is also possible is.

In a practical embodiment it is provided that the mixture has a filling character similar to that of half-down Contains chemical fibers and natural feathers in equal proportions. Tests have shown that such a filler is versatile is applicable and appropriate mean values between the backwater effect and down-pillow-like sitting behavior results. Such a mixing ratio is suitable for practically all areas of application, so that such a Filler does not necessarily require further adjustment. With excellent sitting behavior, it enables opposite Upholstery parts with pure natural feathers a remarkable saving of natural materials of 5o%, so that these others Areas of application can benefit.

The inventive method for producing said The filler is characterized in that the

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Man-made fibers opened and thus loosened and with the natural feathers in a certain mixing ratio be mixed. Only the opening and loosening of the man-made fibers leads to a suitable filler mixture, which can be used extremely well, for example for upholstery purposes. Preserved by loosening up the man-made fibers the necessary softness and the necessary resilience that the filler mixture gives the stabilizing cushioning properties.

In a further embodiment of the method it is provided that a certain amount of loose fiber components is passed at high speed into a mixing container, which is a weighed and kept in motion Contains natural feathers. Through the special introduction of the fiber components into the moving natural feathers an intensive mixing and joining of the two starting materials is achieved, so that practically no more separable mixture is formed. On average, all natural feathers are assigned the same amount of synthetic fibers, so that a largely homogeneous combination material with uniform properties is present. Even with excessive and Frequent use of the upholstery parts filled with this filler causes the two starting materials to separate completely avoided.

It is possible that the fiber components_mit_einem.

Air flow are blown into the mixing container, the natural springs being moved by the air flow and / or by rotation of the mixing container and preferably rotated and additionally whirled through. With the aid of the air flow, the fiber components can be blown into the mixing container in a simple manner and at high speed

by rotating and swirling the natural feathers. During the rotation, a spinning or entangling the natural feathers is made with man-made fibers

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the vortex an even treatment of all Natural feathers located in the mixing container, so that overall a uniform product is created. As a result of The natural feathers, especially in the case of down, receive spinning or wrapping, which is otherwise largely the case for them lack of ability to stand up again. The mixing process described is simple as well as inexpensive and enables a company with a high production rate.

In a practical embodiment, it is possible with the procedure, that the raw man-made fibers are opened in carding machines and that the loose nonwovens with fibers preferably 3 to 6 cm in length are subjected to further loosening, with fast rotating saw blades the fibers lying on the surfaces of the nonwovens, which are removed from the air flow in the mixing container be blown. Such a procedure is particularly expedient, since initially by means of the carding machine a The raw man-made fibers are roughly opened, while the final loosening or dismantling of the nonwovens takes place takes place with fast rotating saw blades, which are optionally connected as a battery, which removes the loose fiber material is fed via conveyor belts. In order to avoid tangling, it is advisable that the fibers Do not exceed a maximum length of 6 cm. In addition, it is easier to blow in with the air flow the mixing container in which the weighed amount of natural feathers is located is possible. Although the procedure can theoretically can also only be carried out with carding machines, but the loosening and opening of the man-made fibers does not lead to the same success as using additional circular saw blade batteries.

Instead, the method can also provide that raw and weight-separated man-made fiber bundles in very small

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lots under rotating needle felt plates and opened be rubbed into down-like balls or flakes. This procedure enables a direct one opening the raw man-made fiber bundle and shaping it into down-like spheres or flakes the filler mixture the necessary ability to stand up again with the corresponding softness and conformability To give. Such processing is simple and inexpensive and does not require any complex process steps.

It is expedient here - that the spheres or flakes are introduced in the desired ratio into a rotating mixing container containing the natural feathers, with or without air turbulence. Since in the present case "there is no spinning or twisting, a simple mixing of the two starting materials is sufficient to get to the filler according to the invention. For this reason, an additional air flow can be omitted, whereby it is sufficient if a mixing container in the form of a spring in the bed." - Down industry known rotating drum is used.

The filler according to the invention has similar properties like the well-known feather-down blends, but he does a significantly small amount of expensive .... and _s.chw_ex ___ ü _-_ " available natural down, which is much more urgently needed in other areas of application. Compared to the known bed feather and down mixtures, the filler according to the invention also has a better ability to stand up again and a higher back pressure, which has a very »positive effect on upholstery and the like. The new filler can be ' manufacture and use widely. In addition, it is easy to adapt to the respective cost and usage situations possible because the mixing ratio

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of the two starting materials can be varied within wide limits.

A mixing ratio of 1: 1 has proven to be particularly favorable for the broadest possible range of applications result and also leads to a remarkable saving in natural feathers for such purposes. That The method according to the invention allows a quick and simple one opening and loosening the man-made fibers and Mix with the natural feathers in variable proportions.

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Claims (1)

Claims (1. Filler for upholstery cushions and the like, marked through a mixture of loosened man-made fibers and natural feathers, such as bed feathers and / or Down. 2. Filler according to claim 1, characterized in that the natural feathers are surrounded by the opened man-made fibers in the manner of a loose spinning or wrapping are. 3. Filler according to Claims 1 or 2 _r, characterized in that the mixture contains loose chemical fiber balls in the form of down-like spheres or flakes, mixed with the natural feathers. 4. filler according to one or more of the preceding claims, characterized in that the mixing ratio of the fibers and the nature of springs is adapted to the desired cushioning performance, with a higher manmade fiber content leads to increased backpressure or re stamina. " ^: * ^r 5. Filler according to claim 4, characterized in that the mixture of synthetic fibers and natural feathers is the same Contains shares. - 12 - 509814/0210 6. A method for producing a filler according to one or more of claims 1 to 5, characterized in that that the man-made fibers opened and thus loosened and with the natural feathers in a certain Mixing ratio can be mixed. 7. The method according to claim 6, characterized in that a certain amount of loose fiber components is passed at high speed into a mixing container, which is a weighed and kept in motion Contains natural feathers. 8. The method according to claim 7, characterized in that the fiber components with an air stream into the mixing container are blown in, the natural feathers by the air flow and / or by rotation of the mixing container moved and preferably rotated and also whirled through »· 9. The method according to claim 8, characterized in that the raw man-made fibers opened in carding machines, and that the loose fiber webs with fibers of preferably 3 to 6 cm in length are further loosened are exposed, with fast rotating saw blades lying on the surfaces of the nonwovens Remove fibers that are blown into the mixing container by the air flow. Io. Method according to claim 6, characterized in that Raw and weight-separated man-made fiber bundles opened in small quantities under rotating needle felt plates and rubbed into down-like balls or flakes. * r - 13 - 5098 U / 0210 11. The method according to claim lo _r, characterized in that the beads or flakes are entered in the desired ratio in a rotating mixing container containing the natural feathers with or without air turbulence. 5098U / 0210