NO142534B - PROCEDURE FOR MANUFACTURING A NEEDLE AND ORNAMENTALLY DESIGNED FLAT MATERIAL - Google Patents

Description

The present invention relates to a method

for the production of a needled and ornamentally patterned fleece material, where the fibers in a solid color,. needle-punched pile fiber material is completely or partially glued together in the surface sections that correspond to the desired ornamentation, and that this pile material web that forms the patterning pile in a dry state is put together with a second, differently colored needle pile material web that does not show any surface sections with fibers glued together, and where both fleece material webs are needled together. Such pile materials are mainly used as blankets. According to the state of the art known to date, such patterned cotton fabrics are produced by three different methods:

1. The needles in the needle machine are arranged according to the ornamental pattern (DE-GM 1.977.417). A decisive disadvantage of this method consists in the fact that the individual fleece webs are only needled to each other in the area of the ornamental pattern. In the other sections of the carpet, there will be no connection between the lanes. 2. In this second method, one of two webs is printed on and becomes the ornamental pattern. Both paths are then stitched to each other, starting from the printed path. The printed side of the second web constitutes the visible surface of the finished product (DE-PS 2.008.439). As many flor materials do not take colors (pigment colors), the use of this known method is limited. 3. One or more lanes are provided with an adhesive covering in the form of the desired pattern (No.Pat. 125854). The glued web is pinned to an unglued web. The needling takes place from the external, glued side of the externally located web through the other glued webs and the unglued webs, the external side of which assumes a pole structure and will form visible surfaces on the finished product.

In the case of the floor material according to this method, where it is primarily carpets or similar floor coverings, experts have recognized that the products exhibit certain defects, as there is only a firm connection between the different floor tracks at the unglued sections. However, the professionals have not seriously thought through how the products could be improved. No attempt has even been made to achieve a firm connection between the different floor courses over the entire surface, i.e. both the glued and the non-glued sections, so that a product with greater strength can be obtained. Five years have passed between DE-AS 1,901,753 and the present invention, without any improvements being proposed. Seen against the background of the rapid development of the relatively young needle technique, this is a very long time.

The present invention aims to provide a method for producing a needled and ornamentally patterned fleece material in which the connection between the individual fleece material webs within the area of the glued surfaces resp. the glued places are improved while maintaining the patterning effect.

This is achieved according to the invention by a method which is characterized by needling through both pile material webs from the side of the other pile material web to form a pole surface on the outer surface of the pile material web that forms the patterned pile.

Instead of, as in the known method, carrying out the needling from the fleece material web which exhibits the fibers glued together, according to the invention, the needling takes place from the other fleece material web which does not show any surface sections with fibers which are glued together.

The gluing of the fibers can be achieved either by applying an adhesive or binder or by more or less intensive melting of the fibers.

The method according to the invention entails the advantage that, by completely maintaining the design of the pattern effect, a versatile mechanical strengthening of the material formed by the two webs is achieved, as the fibers in the non-glued second fleece material web completely penetrate the patterned fleece's glued places and thus connect the two fleece material webs with each other and form a fluff. The same effect of a complete mechanical connection system is also achieved if several different-coloured, ornamentally over-glued fleece material webs are needle-punched through from the side of a further single-coloured, non-over-glued fleece material web and fluff is formed on the side facing from the non-glued fleece material web. In the latter case, multi-coloured effects are achieved in the designed fleece layer, as a complete fiber connection is formed at each location of the fleece-needle multilayer system.

It has also been shown that, if you lay three needle-woven fleece material webs in the basic colors blue, red and yellow on top of each other, which corresponds to the desired pattern, each one is partially glued according to DT-AS 1.901.753, on the loft surface in addition to the basic colors blue, red and yellow can also achieve the mixed colors green, violet and brown if the hue of the three basic colors is appropriately matched to each other and/or the thickness, i.e. e.g. at the same titer on the individual flor material webs, the m 2 weights on these are brought to an appropriate thickness or weight relation to each other, so that the desired mixed color is formed by a thereby determinable quantity ratio between the individual, differently colored fiber parts in the fleece.

The non-glued fleece material web thereby not only achieves the above-described complete connection of the three additional partially glued fleece material webs, but also opens up the possibility that the entire multi-colored patterned image prominent in the log layer becomes more or less strongly brighter, if, in addition to the three the basic colors blue, red and yellow form the fourth non-glued flor material web colourlessly, e.g. with white fibers. . One also glues this fourth white or practical spoken colorless flor material web partially, disappears in the areas of the partial overgluing the lightening effect completely, just as it is also possible by differentiating the penetration depth of the partial bonding to achieve a gradation with regard to the lightening of the colors. •

On the other hand, if desired, a pure off-white tone can also be achieved in the pattern image by completely gluing the three colored fleece material webs in red, blue and yellow instead of the partially unglued white fleece material web, so that only the white fiber portion of the the fourth floret in this place forms the fluff. In each case, Bt leads such a multilayer system if individual layers are partially glued identically to an excellent connection of the entire multilayer system, whereby, surprisingly enough, despite the differently glued parts within the four-lane system, the loft design is designed quite evenly, as the fibers are always included in the loft that are not bonded partially by gluing. With the above-mentioned system and using several flor material webs in the colors red, blue and yellow and an additional colorless flor material web, it is possible in a simple way to produce ornamental, multi-colored patterns that practically cover the entire color scale. Thereby, a particularly significant advantage is achieved, namely that the entire stock of raw fibers can be limited to the aforementioned three basic colors red, blue and yellow as well as off-white, and that with these three identical jrun colors you can always produce all other desired colors and color shadings. The mixed colors obtained, which are formed in the fluff, are particularly distinguished by their color clarity, as the original colors are retained next to each other in the fluff and, by their combination, the desired hue gives the eye a special distinctiveness. With the needle-needling technique used, such intensive color Dlanding is thereby achieved that normally can hardly be achieved in pure mixtures inside the fibres.

The above-mentioned method takes on a particularly decisive importance where one has to process fibers which cannot at all or only with difficulty be dyed fiber-by-fibre resp. supplied with pressure throughout. This applies, for example, to polypropylene fibers which are preferably spray-dyed.

In the following, the procedure will be described in detail in connection with an example: Without the use of a support stand, three needle-woven fabric webs a), b) and c) are produced in a width of 430 cm with eh

2

surface weight of a) 250g, b) 200g and c) 150g per m of polypropylene staple fibers in a length of 80 mm and a thickness of 17 detex.

Furthermore, a corresponding flor material web d) is produced with a surface weight of 200 g per m 2 of a mixture of polyamide fibers in a length of 90 mm constituting 50% and with a thickness of 40 detex and 50% with a thickness of 17 detex in raw white. The colors of the flor material paths a) ,b)

and c) is medium yellow a), medium red b) and medium blue c), all spray-dyed.

The flor material webs a), b) and c) are partially glued by the cylinder printing method with a binder in such a way that by correctly placing these three flor material webs on top of each other corresponding to the desired pattern and the desired colour, the color or the colors of the non-glued parts provide the calculated pattern for the pattern effect desired during pinning.

The partially glued wooden fiber material webs are correctly placed on top of each other after the comparison and then pass through a channel dryer during complete drying of the binder. After finishing drying or even before introduction into the canal dryer, join the three pattern felts a), b) and c) with the off-white felt b) and lon needle in connection with this using fork needles with an insertion depth of the needles of 10 mm.

The carpet, which in this way with the help of four fleece material webs mechanically and strengthened by the binder, can now be strengthened in a known manner over the entire surface by an additional back finish, either by casting or applying latex dispersions on the back.

The all-covering carpet produced in this way shows on the surface a dense, ornamental multi-coloured patterned fine-looped structure with a uniformly high and uniformly dense loft distributed over the entire width of the carpet. In the carpet's pattern, the colors red, blue, yellow, , green, violet, brown and white appear in the desired places, as well as gradation of the aforementioned colors which can be achieved by finer or coarser basting or, in accordance with this, weaker or stronger partial gluing on the individual locations of the different flor material lanes.

In the case of extra more or less strong, over the entire surface or partial gluing of the raw white fleece material webs d), the entire color strength for all colors can also be made weaker or less strong with the help of this fleece material web. The intensity of the relevant gluing of the flor material web d) can likewise be produced by coarser or finer resting of the printing cylinder. The gluing process corresponds in all cases to a conventional printing process, only with the difference that instead of a color paste, a binder or glue is used.

Claims (4)

1. Method for the production of a needled and ornamentally patterned felt material in which the fibers of a single-coloured, needled pile material web are glued in whole or in part to each other against the surface section corresponding to the desired ornament, and where this pile material web is laid together in a dry state with a second, different-coloured , the needled pile material web that does not show any surface sections where the fibers are glued together, and where both pile material webs are needled together, characterized by needling through both pile material webs from the side of the other pile material web to form a pile surface on the outermost surface of the pile material web that forms the patterning felt. 2. Method according to claim 1, characterized in that several differently colored fleece material webs whose fibers are glued together in certain surface sections are laid in a rapport-like manner on top of the fleece material web that does not have any surface sections with glued fibers, and from this fleece material web, the webs for designing a fleece surface on the outside are pinned through of the uppermost fleece material web which has fibers glued together. 3. Method according to claim 2, characterized in that three fleece material webs in the colors blue, red and yellow are used which have fibers glued together in certain surface sections. 4. Method according to one or more of the claims from 1-3, characterized in that a white or colorless flor material web.