DE6601885U - DEVICE FOR FILLING PILLOWS - Google Patents

Description

PATENT LAWYERS

DR.-ING. BY KREISLER DR.-ING. SCHÖNWALD DR.-ÜMG. TH. MEYER DR. FUES DIPL.-CHEM. ALEK VON KREISLER DIPL.-CHEM. CAROLA KELLER DR-ING. KLÖPSCH

COLOGNE 1, DEICHMANNHAUS

Elimination II from C 12 472/8 h Gbm

January 17, 1969 Ke / Ki

Celanese Corporation of America,

522 Fifth Avenue, New York 36, N.Y., V.St.A.

Device for dropping pillows

Web or sheet-like products made from continuous filaments or staple fibers without weaving or knitting Usually referred to as fiber fleece and as a filter or, in the manufacture of clothing, as wadding and reinforcement for these clothing, but also used to a considerable extent as pillow fillings. The products made from staple fibers have disadvantages in that they are not sufficiently stable and are permanent, even if they are

2.0 are medium or combined to form a multilayer structure to form a more stable web-like product. The products tend to lose fibers, making them less bulky after a short period of use are easier to squeeze and only still have a low resilience.

- In contrast, according to recent proposals, web-shaped Fiber products are made from continuous filaments of extraordinarily fine equilibrium, the rnio special advantage in a wide variety of areas,

, 20 in particular also used for the manufacture of pillows

These products are made up of crimped filaments, generally all in the same direction are arranged and by the crimps in the threads and small irregularities in their position to each other be intertwined and held together. They are made by making a crimped fiber strand made of synthetic continuous filaments by means of rollers of different properties is first opened, the individual threads are changed in their position so that their crimps with those of the neighboring threads no longer match. Afterward the opened strand is then under the action of external forces that separate the individual threads from each other move away, spread out, preferably under the influence of air spreaders. To open the strand, for example several pairs of rollers are used, one roller of each roller pair having a smooth surface., the other Roller has a profiled surface. If the strand passes between the two rollers of any roller pair, so some threads between the vertices of the elevations

! 0 gene of the profiled roller and the outer peripheral surface the opposite roller with a smooth surface grips, while the threads moving at the same time in the direction of the incisions of the profiled roller are aligned, pass unhindered through the roller pair.

When the cord opened in this way is spread, it becomes transformed into a continuous web of greater width and remarkable density. Preferably the opened Strand 1.5 to 6 times its original Spread wide, with webs of one width

pO of 2 I later or more get four den. can, but is for A web width of up to 1 meter is sufficient for most applications.

When spreading the opened cord, it will through felt through a device in which the flat opened Strand passes a passage of small height, in

the flow of air or other gas on the strand ; Be directed along its entire width and escape again at the entry and exit openings of the strand. fThis makes it possible to easily and to be spread very evenly over large widths and to produce webs of the greatest purity, for example webs, which are less than 2 ^ 0 threads, for example 40 threads / cm Width included and in which the average air space between the leaders, (durchohnit-tliehör air space per thread) is much larger than the diameter of the threads themselves.

The fiber webs obtained in this way can be Laminates are combined by, for example, continuously depositing them on an endless conveyor belt and on this one of several layers during a corresponding number of revolutions of the conveyor belt existing laminate. These laminates can then be sewn across the planes of the individual strips, around the threads in the laminates, if necessary tighter to connect with each other. The laminates formed from lightweight webs can also be used without sewing, for example Used to fill pillows for scarves, cushions, upholstery, insulating pillows or sanitary napkins.

■ -The new device for filling a by means of a cutting knife 3 from an open and essentially underneath 7. ^v Removal of the synchronism of the crimps The fiber strand spread out from crimped continuous filaments is separated from the fiber web section 2 and heaped in loose folds in front of a barrier 1 in a pillow cover.This is characterized by the heaped fiber web section forming a pillow filling and wrapped at one end of a sack-like cushion cover 6 soy / ie a pusher 4 which brings about the transport of the folded fiber web section into the cover.

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Such a device for making pillows from loose recorded tracks is shown in the drawing, according to which the pillow filling is formed directly on a conveyor belt 7. The web was made of polyethylene terephthalate thread existing strand with a total denier count of ISS.OCO and siiisr denier table of 5.0 per thread won. The spread sheet was 120 cm wide and weighed 11.8 g / m. The threads had 5 crimps per cm.

The barrier 1 is arranged directly above the conveyor belt 7 on which the lower ends of the barrier rest in a displaceable manner. The fiber web 2 piles up in a loosely folded amount in front of the barrier 1 and is cut, for example, with the knife 3 and pushed in the transverse direction by the plunger 4 from the conveyor belt 7 into the mold 5 and from there into the bag-like cushion cover 6, its opening is aligned with the outlet of the mold 5. When the freshly cut end of the web moved by the conveyor belt reaches the barrier, a new pile begins and the process is repeated. The whole process can easily be carried out automatically, since the web can be fed at a constant speed and constant weight per unit of time. The knife 3 and the plunger 4 can be set by a correspondingly set controller; are controlled so that they act substantially simultaneously at predetermined intervals. Has a vorherbe- ^l-determined weight of the web accumulated at the barrier} "fc, the knife 3 is actuated to cut off the web, and the plunger is actuated ^ k to the accumulated web to be discharged into the mold. 5 In this way, highly resilient pillows can be made continuously at a very high speed.

The pillows made from the light sheets are those superior to that obtained by filling with laminates made of poly-

Ethylene terephthalate staple fibers are manufactured. the Cushions retain their resilience and their fullness much longer when in use, and do not become matted when in use and do not run in.

This innovation has proven itself particularly in fiber webs whose threads consist of polyethylene terephthalate or cellulose acetate with the usual acetyl content of, for example, 5 ^ to 55 %, calculated as acetic acid; But s?, e is equally suitable for fiber webs made of other 'polyesters, for example polyesters of terephthalic acid with; other glycols, linear superpolyamides, polyacrylonitrile and copolymers of acrylonitrile, olefinic polymers and copolymers, esters and / or ethers of gelulose, for example cellulose propionate and cellulose acetate, propionate, highly esterified cellulose, which are less than] 0.29 free hydroxyl groups per anhydroglucose unit holds, like cellulose triacetate, as well as rayon (regenerated *. cellulose).

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Claims (1)

Protection claims Device-long for filling a fiber web (2) obtained by means of a cutting knife (3) from an opened fiber strand of crimped continuous filaments, which is spread out essentially with the removal of the synchronism of the crimps, and heaped in loosely piles in front of a barrier (l) Fiber web section in a pillow cover, characterized by the heaped fiber web section forming a pillow filling and one end of a bag-like pillow cover
(6) enveloped form (5) as well as a pusher (