DE2756065A1 - METHOD AND DEVICE FOR SAMPLE SHEARING FLORWARE - Google Patents

Description

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Applicant: Milliken Research Corporation,

PO Box 1927,
Spartanburg, SC 29304, USA

Title; Method and device for

Sample scissors from pile ware

609825/0901

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Method and device for fluidizing pile fabrics

DESCRIPTION

The invention relates to methods and devices for shearing pile within certain areas of pile fabric, to achieve either a certain regular pattern or a random pattern.

Methods for removing the pile within predetermined areas of pile fabric are known, but they adhere many of the known methods have considerable disadvantages, because within the areas where the pile cannot be removed a strong finish or glue must be applied, and then the pile is inside this Areas compressed or compacted. This requires large amounts of finish or glue, and pressing down or compacting the pile leads to damage to the fibers within those areas of the pile that are intact should stay.

In US-PS 605 710 a process is described in which a finish is applied to all fibers of a pile fabric will. Thereafter, the fibers are within the areas where the fibers should not be removed to below those Fibers compressed, which are located in the areas where the pile is to be removed. Finally will

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the pile is sheared off within the uncompressed areas. Finally, the product is freed from the finish.

US Pat. No. 3,422,512 describes a similar process in which an adhesive is only applied to those areas where the pile should not be removed.

The invention is based on the object of a method for shearing pile within certain areas of pile fabric to create in which the fibers or the pile in the other areas are not damaged or otherwise undesirably changed will.

This object is achieved with the methods and devices specified in the patent claims.

It has surprisingly been found that it is possible to achieve the object of the invention in that a stiffening agent is applied to those areas of the pile fabric, where the pile is to be removed. The stiffener is then hardened and the pile fabric is attached to a shear knife pulled past a shearing machine, whereby the fibers can bend to the side within the untreated areas, while severing the fibers within the stiffening agent treated areas. Eventually that will remaining stiffening agents removed by scrubbing, washing or other means.

Surprisingly, the process according to the invention does not lead to damage the fibers within the untreated areas; it does not require any mechanical devices to be used Compress the pile, and it allows the stiffening agent to be used sparingly.

The method according to the invention can be used for the most varied of pile fabrics Art can be used, e.g. on velvet, plush or even on carpets. There is also an application of the method Possible regardless of the structure of the goods, i.e. it can be tufted, woven, knitted, knitted or glued Was · act. The inventive method is particular

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in the case of velvet with a sheared pile or cut open Suitable for knobs that are manufactured according to the tufting process. The pile can consist ζ .3. Of acrylic thread with 13 single threads In the weft direction there are 25 threads per inch, while in the warp direction there are 40 threads per inch. The height of the pile is about 2.4 mm. The base fabric made of polyester yarn in the form of drill has 38 wefts and inches per inch Warp threads on. The tufts of pile are held in place by a latex coating on the back. The final one The weight of the goods is about 0.59 kg / m. To ensure maximum flexibility of the pile fibers, you can use the Heat the goods with steam, rubbing in hot water, or other similar means before printing.

The goods can be colored before or after the sample scissors. If the dyeing is done afterwards, care must be taken care must be taken that all residues of the stiffening agent are removed in order to avoid coloring errors.

To implement the invention, all materials can be used as stiffening agents which, when hardened, tend to stiffen the fibers within the pile or to connect them to one another or to form a hard film in which the fibers are embedded. Suitable stiffeners include finishes, adhesives, mixtures of water with thickeners, and hot melt adhesives. If a mixture of water and a thickener is used, hardening can take place by freezing the water. When using a hot melt adhesive, curing is accomplished by allowing the adhesive to cool. Preferred stiffening agents include liquid mixtures of water and polyvinyl acetate, polyvinyl alcohol, acrylic monomers, sulfurized polyester finishes, and methyl cellulose, but numerous other solvents and adhesives can be used. The typical mixtures contain about 9% to 100% solids. The preferred solids content is about 50%. The preferred stiffeners have a viscosity in the range of 800

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(corresponding to 0.8-40 Pa.s) 9
up to 40,000 cp /, and the viscosity depends on the method chosen for application. The particularly preferred stiffening agents are alkali-soluble emulsions of the polymers of acrylic monomers in water having a solids content of about 50%. The solids of the stiffening agent expediently contain 25 to 50% ethyl acrylate, 25 to 50% methyl acrylate, 20 to 40% methyl methacrylate and 5 to 15% acrylic or methacrylic acid, the total solids content being 100%. Butyl acrylate, 2-ethylhexyl acrylate and various acrylic esters can also be used. These particularly preferred stiffeners have sufficient flexibility to ensure that the film which forms after curing runs over the rollers of the shearing machine without cracking or breaking. If the stiffening agent is to be applied by rotary screen printing, it is advisable to use an agent that prevents drying out and to set the viscosity to about 30,000 cP (corresponding to 30 Pa.s). Suitable agents for preventing drying out include non-volatile polyglycols with hygroscopic properties, for example ethylene glycol, propylene glycol and glycerine. Numerous other means for preventing drying are known to any person skilled in the art. The viscosity can be adjusted by varying the pH. It is also possible to use a liquid mixture of water and a thickening agent as the stiffening agent. In this case, as mentioned, hardening can take place by freezing the water. After shearing the sample, the remaining stiffening agent can be removed by melting the water. Both natural and synthetic thickeners can be used. Examples of synthetic thickeners are the sodium or ammonium salts of polyacrylic acids. Natural thickeners include natural gums and alginates, as well as other natural products. Gum arabic, karaya gum, tragacanth and gum obtained from locust beans are all possible types of gum.

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There are different hot melt adhesives for different types of pile fabric suitable. Preferably, an adhesive is used whose melting point is below the melting point of the Pile fibers lies, which is, however, solid at room temperature.

The required amount of stiffening agent depends on the properties of the pile fibers and the finish used. The stiffening agent must be applied in such an amount that it is not possible for the fibers within the treated areas to flex so that they cannot be caught by the cutting knife. In general, the amount of stiffening agent must be about 25% to 200% of the weight of the pile within the area to be treated. When determining the amount of stiffening agent to be used, the weight of the pile in the areas of the goods that are not to be sheared is irrelevant. It has been found that it is preferable to work with the higher percentages in the range mentioned, and that it is particularly expedient to use the stiffening agent in such an amount that it forms a continuous layer in which the free ends of the Pile fibers are embedded. If the stiffening agent is applied in such a way that it forms a gapless layer, it often proves to be advantageous to use a blowing agent so that the pile fibers assume an upright position when the stiffening device hardens. Any substance which can be caused to expand rapidly or to give off a gas when the stiffening agent is hardened is suitable as blowing agent.

Any method can be used to apply the stiffening agent other than those areas with the Stiffening means are provided within which the pile is to be sheared. It is convenient to use the pile fibers in an upright position before the finish is applied. The procedures that can be used here include Rotary screen printing, serigraphy, roller printing, gravure printing, nozzle printing and many others

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known procedures. It is useful to keep the fibers of the pile in their upright position while the stiffening agent is cured.

The stiffening agent is hardened after application. This hardening includes every work step that causes that the stiffening agent solidifies or that the fibers are bonded together or that the fibers are the desired Maintain rigidity. When relatively small amounts of the stiffening agent have been applied, the effect exists the curing primarily in that each individual fiber is stiffened by the fact that its coating of the stiffening agent stiffens. The curing also serves to glue several fibers together to form small tufts. Are If larger amounts of the stiffening agent have been used, the curing results in the fibers being embedded in a film which consists of the solidified stiffening agent. Either way, the treated fibers will have the ability to stand up bending out of the path of the shear blade decreases while the fibers move within the untreated areas can fold so that they are not caught by the cutter. A stiffening agent that uses a solvent is attached, the hardening can also include any work step necessary to remove the solvent or carrier material leads. If a solvent is used that evaporates very quickly, it could even harden itself take place under the influence of the ambient conditions. Use a mixture of water and a thickener as a stiffening agent, it is possible, as mentioned, to carry out the hardening by freezing the water; if a hot melt adhesive is used, the adhesive is allowed to cool and then it hardens.

in the case of the stiffening agents preferred according to the invention the hardening is basically achieved by removing the solvent, which is usually formed by water, from the stiffening agent. It is usually sufficient to place the pile fabric in an oven at a temperature of about 150 ° C. for 5 minutes.

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It is also possible to use an air jet dryer. When the dryer emits air at a temperature of about 190 ^° C. at a flow rate of about 40 m / sec, curing can be carried out within about 2 minutes. It has also been found that curing is possible with the aid of the heat given off by infrared lamps. If only infrared lamps are used to cure the adhesive and the speed of the goods is about 2.75 m / min, it is sufficient to use six to eight rows of quartz surface heating elements of about 25 χ 200 cm across the material web and at a distance of about 23 cm of the goods if the heating surfaces are kept at a temperature of around 427 ° C. For any given combination of a stiffening agent with a particular pile fabric, one must determine the curing conditions to avoid scorching the fabric. Processes are known to every person skilled in the art which allow maximum drying while avoiding scorching of the goods. The heating device can easily be set correctly, because you can observe the appearance of the pile fabric as it leaves the dryer. It has proven particularly expedient to expose the pile fabric to the action of infrared heat and the action of an air jet dryer in succession. If the running speed of the pile fabric is approximately 2.75 m / min, it is most expedient to first pass the pile fabric under four rows of infrared heating elements, the temperature of which is approximately 427 ° C. The pile fabric is then exposed to the action of an air jet dryer which emits air at a temperature of about 75 ° C. at a flow rate of about 40 m / sec, the treatment time being about 1 minute.

After the stiffener has cured, the fibers within the treated areas can be sheared by lets the goods run past a knife that cuts the fibers within the treated areas, while the Fibers within the untreated areas can avoid the knife. Alternatively, you can use the knife on the pile fabric pass by. It is useful here to use the pile fabric

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via a roller or guide rod adjacent to the knife or bring a tip table. With one especially In preferred methods, the pile fabric is passed over a roller or roller.

Exemplary embodiments of the invention are explained in more detail below with reference to schematic drawings. It shows:

1 shows a partial section of an untreated pile fabric;

Fig. 2 is a view showing pattern shearing a pile fabric, in which the pile fabric is passed over a roller adjacent to a knife, with only those Severing pile fibers embedded in a solid stiffening agent;

Fig. 3 is a representation to illustrate the pattern shearing of a pile fabric, in which certain fibers by application a stiffening means have been stiffened;

4 shows a representation to illustrate a sample shearing method, in which the pile fabric is guided over a guide rod or a pointed table;

Fig. 5 is a side view to illustrate an inventive Method for the automatic pattern shearing of pile fabrics;

6 shows the front of a cutting device for pattern shearing of pile fabric;

FIG. 7 shows section 7-7 in FIG. 6; FIG.

FIG. 8 shows section 8-8 in FIG. 6; FIG.

9 shows the enlarged partial section 9-9 in FIG. 7;

10 shows the front of a spreader bar;

11 shows an enlarged partial section of threads of the spreader bar according to FIG. 10;

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FIG. 12 shows an enlarged part of the front view of the knife according to FIG. 6, from which the curvature of the cutting edge can be seen is; and

13 is an enlarged end view of the bearing of the roller.

1 shows a pile fabric 22 with a base 41 and a pile layer 42. Fig. 2 shows which Way, the pile fabric 22 is passed over a roller 30 near a cutter 43. A stiffening agent is predetermined Areas 42 'have been applied and cured to create solid layers in which the fibers of the pile 42 are embedded are. If the pile fabric 22 is pulled past the knife 43 over the roller 30, the fibers can become in the untreated areas 42 ″ with respect to the knife unhindered flex so that they are not severed while the embedded fibers in areas 42 "through the stiffener held and severed by the knife. In the arrangement of FIG. 3, the amount is of the stiffening agent applied to the pile fabric 22 less than in the case of the arrangement according to FIG. 2. In this case the fibers are stiffened in the treated areas 42 ' and combined to form small tufts of fibers. If these tufts of fibers run over the roller 30, they can do not bend freely with respect to the knife 43, so that they are severed. As before, the fibers in the untreated areas 42 ″. In the arrangement shown in FIG. 4, the roller 30 is through a deflection rail 31 replaced.

In the arrangement shown in Fig. 8, the pile fabric 22 drawn over a roller 30 arranged close to the knife 43, the knife being parallel to the Urafangsurface of the support roller 30 moves. If the fibers in the untreated areas run over the roller 30, they can move unhindered flex away from knife 43 so that they are not severed. In the treated areas, the Fibers cut by the knife 43 while they are over the

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Run away from roll 30. If the surfaces forming the cutting edge of the knife 43 enclose an angle of about 60 °, when the running speed of the pile fabric is about 0.9 to Is 6 m / min and if the knife is moving at a speed less than about 90 m / min, the fibers will not severed in the untreated areas while the fibers in the treated areas are severed. Apparently there is a pile fabric for every running speed an optimal speed of the knife. When the running speed of the pile fabric is about 1.5 m / min, it is found that optimum results are achieved when the knife at a speed of about 15 to 30 m / min is moved. The optimal arrangement of the cutting edge of the knife in relation to the deflection rail or the roller 30 is determined according to the type of pile fabric to be processed. In order to determine the optimal arrangement, the knife is switched on during operation of the machine. Here, by looking at the product, it is possible to determine when the pattern shears plays in the way you want.

After the pattern shearing, the pile fabric can be cleaned in order to remove any remaining stiffening agent. When the stiffening agent is acrylic monomers it is advisable to use a slightly alkaline cleaning solution.

The process according to the invention can be carried out with the aid of the in Fig. 5 perform device shown continuously. This device includes a supply roll 20, a Rotary screen printing device 24, a curing chamber 27, spreader bars 29 and 29 ', the support roller 30 described, a cleaning bath 34, nip rollers 36 and 36 ', a drying oven 38, a take-up roller 40 and one not shown Motor for transporting the pile fabric 22. The pile fabric ends is first in the dyed or undyed state on the supply roll 20. From there, the pile fabric is used for The screen of the rotary screen printing device 24 is transported, the screen of which is closed within those areas

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which correspond to the areas of the pile fabric where the pile fibers are to keep their original length. The stiffening agent penetrates the open parts of the screen in order to get onto the pile fabric in those areas where the The pile should be sheared. After the pile fabric the hardening cararaer 27 where it is passed by infrared lamps 27 and an air jet heater 28 is heated, it runs over the spreader bars 29 and 29 · and then over the Roll 30 and past the knife 43 where the fibers in the treated areas are sheared. Then runs through the pile fabric, the cleaning bath 34, the two nip rollers 36 and 36 'and the drying oven 38, in order then to the roll to be wound up.

For shearing the pile according to the invention, you can use any Use cutting equipment that allows the untreated clay fibers to be left intact, but the treated ones Cut fibers. PJs is only required that the cutting device is not like a pair of scissors, but according to Kind of a hessian or razor works. Such a cutting device is shown in FIGS. When the pile fabric runs over the roll near the knife, the pile is expediently tensioned evenly and kept wrinkle-free. It is useful here to maintain the uniform tension of the pile fabric in that the pile fabric is kept taut on the feed side and that the winding roller 40 is driven via a slip clutch will. It has been shown that better results can be achieved if the pile fabric is on the feed side holds tensioned to such an extent that the desired tension is created by stretching the pile fabric will. In the arrangement according to FIGS. 7 and 8, a motor 68 drives a chain 66 which runs over a sprocket 59, which is connected to a gear 58; the chain also runs over sprockets 60 and 60 '. The gear 58 drives further gears 57, 56, 54 and 52 on. The gear 52 is used to drive a delivery roller 45, while the gear 54 drives a delivery roller 45 '. The sprockets 60 and 60 '

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serve to drive the take-up rollers 46 and 46 '. By Appropriate selection of the gears 56, 57 and 58 can be used to make the take-up or tensioning rollers 46 and 46 'the pile fabric transport faster than it is delivered by the delivery rollers 45 and 45 '. True, it is with the help of this arrangement it is not always possible to achieve the exact desired tension of the pile fabric on the infeed side, however, it is generally possible to achieve a delivery rate that is within a fraction of a percent matches the desired value. The gears 56 and 57 are rigidly connected to one another and sit on a shaft 61 which is adjustable in a slot 62 of an arm 70. The arm 70 is pivotable about an axis 63, which also carries the gear 54. If the gears 56, 57 and 58 are exchanged, the axis 61 can be adjusted so that the gears 57 and 54 mesh with each other. The arm 70 is then pivoted about the axis 63 in such a way that the gears 56 and 58 are engaged. In this way, numerous different gears can be put together, see above that you get the desired tension of the pile fabric on the delivery side *

Shortly before the pattern shearing, the pile fabric 22 runs over two spreader bars 29 and 29 'as shown in FIG the pile fabric is free from wrinkles when it runs over the support roller 30. Further details of the spreader bar 29 can be seen from FIGS. 10 and 11. The spreader rod 29 is a generally cylindrical component with multiple threaded sections 92, 94, 96, 98, etc. The helix angle is at the various threaded sections chosen so that the pile fabric 22 is stretched outward from its center line as it passes over the Spreader bar 29 runs. According to FIG. 10, each has a further outward offset with respect to the center point of the spreader rod 29 Threaded section has a larger pitch angle than each section closer to the center point. According to 11 shows each thread of the spreader bar on the side facing away from the center point of the spreader bar a vertical one

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-ti-

Wall 100, while an inclined wall 101 is present on the side facing the center point of the spreader bar is. After the pile fabric has run over the spreader bars 29 and 29 ', it is placed over the one near the knife 43 Guided support roller 30, which latter is expediently adjustable with respect to the knife. According to FIG. 13 is the Support roller 30 is arranged on an arm 84 which is attached to a pivotable lever arm 86. By swiveling the Lever arm 86 around a bearing axis 88, the support roller 30 can be brought into the immediate vicinity of the knife 43 or opposite it swivel back the knife. The arm 84 is expediently displaceable relative to the pivotable lever arm 86, so that it can be adjusted radially in order to bring the support roller 30 into the correct position. If necessary, the knife can also be used 43 be adjustable with respect to the support roller 30.

The knife 43 can be any organ that is capable of removing the fibers within the treated To cut through areas of the pile fabric, which however allows the fibers in the untreated areas, the knife to evade by a deflection. A rotating band saw blade is preferably used as the knife 43. Here the knife moves parallel to the peripheral surface of the support roller 30, and it is possible to have an automatic device, not shown, for sharpening the knife in one place to be arranged where the knife is not in contact with the pile fabric. However, most standard band saws Saw bands are used which have a slight curvature, as shown in FIG. 13. Preferably is between the support roller 30 and the knife 43 are evenly spaced over the entire length of the support roller. In the preferred embodiment, the support roller 30 is supported by a plurality of adjustable bearing rollers arranged in pairs 80 and 80 'supported.

The invention is explained in more detail below with the aid of examples, to which the invention is not limited.

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Example I '*

To make the stiffening agent, ethylene glycol, anhydrous ammonia, and a fake dye were one of Acrylic monomers prepared aqueous emulsion added. The aqueous emulsion was the product that marketed by Glo-Tex Chemicals, Roebuck, South Carolina under the tradename GLO-REZ 816 HV and has a solids content of about 50%. Both Solids are polymers made from 25% to 50% ethyl acrylate, 25% to 50% methyl acrylate, 20% to 40% methyl methacrylate and 5% to 15% acrylic acid, the total solids content being 100%. This material was 10 percent by weight Ethylene glycol added. Further, an amount of 0.45 kg of the emulsion became 1.5 g of 28 percent anhydrous Ammonia and 6 g of a fake dye added. In this way, an emulsion with a viscosity was formed of 18,000 cP, which is printed in the form of a pattern on a velvet fabric using a rotary screen printing machine became. The screen was 30 meshes per inch and the printing speed was about 2.75 m / min.

The velvet had cut tufts and was tufted. The pile on the front consisted of 13-thread acrylic yarn. The fabric was 25 threads per inch in the weft direction and 40 threads per inch in the Warp direction up. The pile height was about 2.4 mm. The base fabric was woven from polyester material and pointed 38 weft threads and 68 warp threads per inch. The tufts of fibers were covered by a backing made of latex in their Location held. The finished weight of the fabric was about 1.7 kg / m. To maximize the flexibility of the pile fibers ensure the fabric has been washed in hot water before printing.

The pattern with which the fabric was printed had stripes about 1.6 mm wide, with the entire open Area was about 5%. The weight of the person on the fabric

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applied stiffening agent corresponded to about 50% of the fabric weight .

To precure the stiffener, the fabric was placed under a series of infrared heaters passed through, which is set to a temperature of about 483 ° C and at a distance of about 23 cm from the fabric. For final curing, the fabric was treated with air at 75 C, which was held for about 1.5 minutes Using an air jet dryer was directed onto the fabric.

After the stiffening agent had hardened, the fabric became sheared with the help of a band-shaped knife so that the fibers were cut within the printed areas, while the fibers in the unprinted areas remained intact. The ribbon-shaped knife generally resembles one Bandsaw, but has no teeth. The pile fibers were brought to bear on the knife that the fabric was passed over a guide rail, which was adjacent to the cutting edge of the knife. The deflection rail had a radius of about 3.2 mm. The knife was moved parallel to the deflection rail in a vertical plane, with the cutting edge was directed upwards. The fabric moved from top to bottom against the cutting edge and entered the cutting zone at an angle of 60 to the vertical to the cutting zone at an angle of 30 to the vertical to leave. The position of the cutting edge was determined during the operation of the shearing machine for an optimal cutting effect set, but the geometrical relationships were not measured precisely. However, the cutting edge was in one Area arranged, which is determined by a circle with a radius of about 3.2 mm, the center of which is on the The front edge of the deflection rail lies. The running speed of the knife was about 30 m / min while the fabric was transported at a speed of about 3 m / min. Of the The angle between the surfaces forming the knife edge was 60 ° and the edge was symmetrical to the perpendicular Arranged center plane of the knife.

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A pattern was achieved because the fibers in the printed areas were removed while the fibers in the unprinted areas remained intact.

Example II

The same procedure was followed as in Example I, except that the stiffening agent was like was prepared as follows: There were 18 parts by weight of solid polyvinyl alcohol with 82 parts by weight of boiling water mixed in a high shear mixer, and then 1 part by weight of a spurious dye added. This produced an emulsion with a viscosity of about 6000 cP.

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L e r s e i t e

Claims (21)

PATENT CLAIM chi: 1. A method for shearing fibers of a pile within predetermined areas of a pile fabric, characterized in that a stiffening agent only is applied to the areas of the pile fabric within which the pile is to be sheared, that the stiffening agent is hardened and that the pile fabric on a knife is passed, which only cuts the fibers in the areas within which the stiffening agent is applied however, it affects the fibers in the areas within which no stiffening agent has been applied allows it to flex away from the knife. 2. The method according to claim 1, characterized in that the erecting state of the fibers of the pile during the Curing of the stiffener is maintained. 3. The method according to claim 1, characterized in that the fibers in prior to application of the stiffening agent be brought to an upright state. 4. The method according to claim 1, characterized in that the pile fabric before the application of the stiffening agent is scoured onto the pile. 5. The method according to claim 1, characterized in that a liquid is used as a stiffening agent on the pile fabric Mixture of water and an adhesive is applied, which is selected from the group to which polyvinyl alcohol, acrylic monomers, Polyvinyl acetate, sulfurized polyester finishes, and methyl cellulose include. 809S25 / 0901 50? 00 -2- 275606S 6. The method according to claim 1, characterized in that the stiffening agent is applied to the pile fabric by printing is applied in the form of a fluster. 7. The method according to claim 1, characterized in that the stiffening agent on the area of the pile fabric, within whose fibers are to be sheared, is applied in such a way that a cohesive layer is formed in which the fibers are embedded. 8. The method according to claim 9, characterized in that the stiffening agent is applied to the pile fabric by printing becomes and da ^ as a pre-stiffening agent a liquid Mixture of water and an adhesive is used, which is selected from the group to which polyvinyl alcohol, the polymers include acrylic monomers, polyvinyl acetate, and methyl cellulose. 9. The method according to claim 8, characterized in that the pile fabric in a uniformly stretched and wrinkle-free State is held while it is passed over the knife. 10. The method according to claim 1, characterized in that the fibers of the pile in the areas within which the Stiffening agent has been applied, thereby sheared be that a knife is pulled past the pile fabric, through which the fibers in the areas within which the Stiffening agent has been applied, but this will sever the fibers in the areas within which no stiffening agent has been applied makes it possible to bend against the path of the knife so that they are not caught by the cutting edge. 11. The method according to claim 9, characterized in that the stiffening agent on the area of the pile fabric, within whose fibers are to be sheared, is applied so that it forms a continuous layer in which the fibers are embedded. Β09825 / Π901 50 300 12. Pile shearing machine for shearing the fibers within areas of the pile of a pile fabric to which a stiffening agent has been applied has been applied, characterized by a frame, arranged on the frame devices (45, 45 ', 46, 46') for transporting the pile fabric (22), a support member (30; 31) over which the pile fabric can pass away, means (84, 36, 88) for supporting the support member on the frame and one on the Frame in the immediate vicinity of the support member arranged knife (43), which is adjustable and serves to remove the fibers (42) shear the pile fabric in the areas within which a stiffening agent has been applied while The Hesser allows the unstiffened fibers to bend to avoid the knife. 13. pile shearing machine according to claim 12, characterized by devices (29, 29 ·) »which serve to cut the pile fabric (22) in a wrinkle-free condition. 14. pile shearing machine according to claim 13, characterized in that the device which holds the pile fabric (22) in the crease-free state, at least one spreader bar (29, 29 ^f ), which has a plurality of threaded sections (92, 94, 96, 98) With each thread section further outwardly displaced with respect to the center point of the spreader rod in the direction of the end in question, the pitch angle of the thread is greater than in the case of a thread section closer to the center point of the spreader bar. 15. pile shearing machine according to claim 12, characterized by devices (45, 45 ') through which the pile fabric (22) is tensioned while it runs over the support member (30 ″, 31). 16. pile shearing machine according to claim 15, characterized in that the devices for tensioning the pile fabric (22) includes means (45, 45 ') by means of which the pile fabric is transported so that it is in the longitudinal direction is kept tense. : ■ '' ■ '■! P? ^c , / η 9 0 1 50 300 17. pile shearing machine according to claim 16, characterized in that the means for transporting the Pile fabric (22) while at the same time tensioning the pile fabric in the longitudinal direction, at least one stored on the frame This includes a delivery roller (45, 45 '), furthermore at least one take-up roller (46, 46') mounted on the frame, drive devices (63, G6, 59, 58, 60, 60 ·, 57, 56, 54, 52) for driving the or each delivery roller and the or each take-up roller at different rotational speeds, with to the drive mechanisms include interchangeable gears. 18. pile shearing machine according to claim 17, characterized by at least one spreader bar (29, 29 ') with several Threaded sections (92, 94, 96, 98), with each opposite the center point of the respective spreader rod in the direction on one end of the spreader bar further outwardly displaced thread section, the pitch angle is greater than at the threaded sections that are closer to the center point of the spreader bar. 19. pile shearing machine according to claim 18, characterized in that the support member is designed as a roller (30). 20. pile shearing machine according to claim 19, characterized in that the cutter is a rotating one is an endless, flexible belt (43) and that the devices for supporting the support roller (30) include devices, which make it possible to adjust the curvature of the support roller to match the curvature of the endless flexible revolving belt. 21. pile shearing machine according to claim 20, characterized in that the means for adjusting the curvature the support roller (30) includes a plurality of adjustable bearing rollers (80, 80 ') supporting the support roller. 809825/0901