Abstract:
A method for producing three-dimensional colourless designs in a non-woven fabric or like material entirely bonded includes subjecting the fibers to a blowing process through openings, since the fibers in the openings are only displaced therein with limited depth, and are subsequently needle bonded against a supplementary support.
Abstract:
The invention relates to a device for treating web-type textiles, nonwovens or paper in a continuous stream, uses a gaseous treatment agent that circulates in the device. The product lies on the exterior face of a permeable drum (5), which is subjected to an induced draught and has two base sections (11, 12) on its front face, more precisely on a sieve-type or perforated surface (9), which covers the drum structure. A perforated drum jacket (15), whose edges are merely clipped into the two base sections (11, 12) extends between said base sections (11, 12). To achieve this, an annular groove (17) is machined into the base sections (11, 12). The edge of the sheet metal (15) and a ring-shaped clip segment (23) are inserted into said groove and are retained there by means of screws.
Abstract:
The inner circumferential surface of a suction pipe must be periodically cleaned as well as the inner region of the suction slit and especially the webs between the suction holes of the suction pipe. The aim of the invention is to facilitate said cleaning process. To this end, a standard cleaning spray gun is provided with a long cleaning lance comprising a rotor nozzle on the end thereof. In order to clean the suction pipe, said lance can be passed through a hole on the front side of the fixed suction pipe. The dirt released and the remaining suction water can thus be evacuated on the other front side in a problem-free manner.
Abstract:
A pile carpet after tufting or the like is usually provided on the back with a latex precoat for stabilization and then provided with a foam back or an additional jute fabric. This environmentally hazardous method and the problem of recycling the foam back as well as the latex layer can be avoided If a nonwoven is applied instead to the tufted back of the carpet by water needling. This is possible with water needling in that the solidification of the pile fibers in or on the primary carrier takes place but no nonwoven fibers reach the visible side of the carpet. The back layer to be needled can also be made thicker and mote voluminous. Instead of a carpet, any other pile goods can also be stabilized in this fashion.
Abstract:
A large number of water jets are necessary in order to stabilise waterjets or general impingement of said water jets on a web of fabrics. Said jets exit from a nozzle strip (14) which is provided with a number of holes. A hole or holes can become blocked during use, making it necessary to clean of all the strips (14) in order to achieve a consistent treatment result. A device is arranged on the water strip in order to monitor the water jets exiting therefrom. In order to monitor the water-jets exiting therefrom, a device is arranged on the water strip, said device being able to change step back and forth, in the region where the water jets exit from the water strip, for monitoring purposes along one section of the length of said water strip.
Abstract:
During the construction of the nozzle beam according to DE-A-195 01 738, the insertion slit for the nozzle strip (14) is sealed on the front side of the nozzle beam by means of a screwed cover (16,17). It is easier to exchange a nozzle strip (14) if a special closing unit (26) having an opening (3) for the nozzle strip is provided on the front side, and said opening (30) is closed in a liquid-tight manner by a simply fixed insertion mandrel (31).
Abstract:
Colored patterning of a web-shaped nonwoven or a composite made of a nonwoven and a fabric or knit is achieved by water jet needling. The nonwoven provided as the upper layer of two layers is provided with one or more colors or is colored or printed itself and is placed on a second nonwoven or a woven or one that has a different color. Then both layers are subjected to the water jets that displace the fibers, with the colored fibers in the first layer being displaced into the second layer to produce a pattern on the underside of the second layer. It is also possible, instead of colored fibers in the nonwoven of the upper layer, to move them when they are not colored into a second layer that can have any color.
Abstract:
Device with a nozzle beam for producing fluid streams for striking the fibers of a web of goods by streams. The fluid spraying against the underside of the nozzle beam must be captured. For this purpose, a device is used Fat is located to the side of the nozzle beam over its length. A funnel-shaped slot is provided at the edge of the nozzle beam, at whose inner end a suction slot approximately 2 mm high is formed. If a sufficiently low vacuum is connected to the otherwise completely enclosed device, all of the drops from the underside of the nozzle beam can be sucked up safely for the goods to be needled, including a spray fog.
Abstract:
Bulked and liquid-permeable fleeces are used in the hygienic products industry for diapers and bandages. These fleeces have the purpose of rapidly absorbing fluid secreted from the body, storing it, and slowly giving it up to the absorber located beneath, uniformly over the entire surface of the absorber. As a result of the idea according to the invention, a fleece is formed from shrunk and/or crimped fibers together with non-shrinking man-made fibers, and the fleece is then compacted by a hydrodynamic compacting method without using binders, after which the fleece is dried and the shrinking ability present in the shrinking fibers and/or the crimping ability present in the crimping fibers in latent form are triggered immediately and/or subsequently by the action of temperature. This fleece can be manufactured economically and meets all of the requirements imposed upon it.
Abstract:
It is known to make a nonwoven from polyvinyl alcohol fibers. The special advantage of these PVA fibers is their ability to dissolve in water. The fleece is therefore mechanically needled for compaction. The invention describes a method that allows hydrodynamic needling as well. Special parameters for further treatment during water needling and during subsequent drying characterize the additional features of the invention.