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WO2009076920A1 - Procédé et dispositif de solidification d'un matériau textile - Google Patents

Procédé et dispositif de solidification d'un matériau textile Download PDF

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Publication number
WO2009076920A1
WO2009076920A1 PCT/DE2008/001889 DE2008001889W WO2009076920A1 WO 2009076920 A1 WO2009076920 A1 WO 2009076920A1 DE 2008001889 W DE2008001889 W DE 2008001889W WO 2009076920 A1 WO2009076920 A1 WO 2009076920A1
Authority
WO
WIPO (PCT)
Prior art keywords
hot melt
melt adhesive
application
adhesive
carpet
Prior art date
Application number
PCT/DE2008/001889
Other languages
German (de)
English (en)
Other versions
WO2009076920A8 (fr
Inventor
Erwin Glawion
Original Assignee
Fleissner Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE102008010091A external-priority patent/DE102008010091A1/de
Priority claimed from DE102008020716A external-priority patent/DE102008020716A1/de
Priority claimed from DE102008045753A external-priority patent/DE102008045753A1/de
Application filed by Fleissner Gmbh filed Critical Fleissner Gmbh
Publication of WO2009076920A1 publication Critical patent/WO2009076920A1/fr
Publication of WO2009076920A8 publication Critical patent/WO2009076920A8/fr

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1207Heat-activated adhesive
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/12Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N7/00Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
    • D06N7/0063Floor covering on textile basis comprising a fibrous top layer being coated at the back with at least one polymer layer, e.g. carpets, rugs, synthetic turf
    • D06N7/0071Floor covering on textile basis comprising a fibrous top layer being coated at the back with at least one polymer layer, e.g. carpets, rugs, synthetic turf characterised by their backing, e.g. pre-coat, back coating, secondary backing, cushion backing
    • D06N7/0076Floor covering on textile basis comprising a fibrous top layer being coated at the back with at least one polymer layer, e.g. carpets, rugs, synthetic turf characterised by their backing, e.g. pre-coat, back coating, secondary backing, cushion backing the back coating or pre-coat being a thermoplastic material applied by, e.g. extrusion coating, powder coating or laminating a thermoplastic film
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1207Heat-activated adhesive
    • B32B2037/1215Hot-melt adhesive
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B38/16Drying; Softening; Cleaning
    • B32B38/164Drying
    • B32B2038/166Removing moisture
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2309/00Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/08Dimensions, e.g. volume
    • B32B2309/10Dimensions, e.g. volume linear, e.g. length, distance, width
    • B32B2309/105Thickness
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2310/00Treatment by energy or chemical effects
    • B32B2310/08Treatment by energy or chemical effects by wave energy or particle radiation
    • B32B2310/0806Treatment by energy or chemical effects by wave energy or particle radiation using electromagnetic radiation
    • B32B2310/0825Treatment by energy or chemical effects by wave energy or particle radiation using electromagnetic radiation using IR radiation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2310/00Treatment by energy or chemical effects
    • B32B2310/14Corona, ionisation, electrical discharge, plasma treatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2471/00Floor coverings
    • B32B2471/02Carpets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/08Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the cooling method
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B32B37/1027Pressing using at least one press band
    • B32B37/1036Pressing between one press band and a cylinder
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/15Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
    • B32B37/153Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/16Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
    • B32B37/20Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of continuous webs only
    • B32B37/203One or more of the layers being plastic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B38/0008Electrical discharge treatment, e.g. corona, plasma treatment; wave energy or particle radiation
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2205/00Condition, form or state of the materials
    • D06N2205/04Foam
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2205/00Condition, form or state of the materials
    • D06N2205/08Microballoons, microcapsules
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2207/00Treatments by energy or chemical effects
    • D06N2207/14Corona, ionisation, electrical discharge
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2213/00Others characteristics
    • D06N2213/06Characteristics of the backing in carpets, rugs, synthetic lawn
    • D06N2213/065Two back coatings one next to the other

Definitions

  • the invention relates to a method and a device for
  • the fibers forming the pile are introduced into a carrier layer, and the pile naps or pile loops on the back of the carpet subsequently have to be fixed.
  • the back it is known to coat the back with latex material.
  • a method for the backcoating of a carpet is known from 10 2005 060 450 A1.
  • thermoplastic material From WO99 / 35327 a multilayer carpet back construction is known. In one of the layers, heat-expandable microspheres are incorporated in a thermoplastic material.
  • the object of the present invention is to further develop a known method and a corresponding device. This object is achieved by the features of the method or device claim. Advantageous developments of the invention will become apparent from the dependent claims.
  • a hot-melt adhesive which has such a low viscosity in the processing state that it can only penetrate through the capillary action into the fiber material of at least part of the textile material which is preferably present in bundles or at least partially compacted ,
  • the viscosity of the molten thermoplastic hot melt adhesive is less than 5 Pas. The hot melt adhesive is thus brought to a temperature at which it has the intended for penetration into the fiber material viscosity.
  • the temperature curve (course of the temperature over time) of the adhesive is controlled so that it completely into the fiber bundles, the threads of the fabric by thermal post-processing of the applied hot melt adhesive can penetrate.
  • the thermal post-treatment / post-treatment can be influenced by appropriate control of a belt furnace (setting of the individual heating zone sections), by radiant heaters (infrared radiators) or combinations thereof.
  • the temperature post-treatment can also be carried out in a belt dryer or a flat tensioning frame or in a drum dryer or a round clamping frame.
  • the invention is preferably applicable for the consolidation of pile loops in a back of the carpet. It can be done as well
  • a hot melt adhesive a liquid to be processed plastic can be used, which is applied liquified to processing temperature.
  • the hotmelt adhesive is provided in the form of granules and processed by means of a heated twin screw extruder. The extruder melts and processes the plastic granulate.
  • twin-screw extruder lies in the fact that, especially at the processing temperature, low-viscosity adhesives can be processed with a good degree of efficiency, ie with high delivery rates.
  • addition of aggregates is also particularly advantageous with a twin-screw extruder.
  • the liquefied hot-melt adhesive is fed to an application device and then applied to the material web to be processed.
  • the hot-melt adhesive is applied in the molten state via a nozzle which extends over the entire width of the material or of the carpet backing. It is also advantageous that the nozzle is designed as a slot nozzle and has an outlet gap, so that the adhesive is applied across the width of this nozzle.
  • the exit slit has an exit slit thickness (distance of the lips of the exit slit) between 0.2 and 2 mm.
  • the invention if the textile material is subjected to a corona treatment before applying a hot melt adhesive, by which the wettability of the material is positively influenced by the adhesive.
  • the textile material and preferably the back of the carpet or the woven carpet is heated before the application of the hot melt adhesive.
  • the hot melt application takes place in a region in which the textile material or the carpet is conveyed fixed by a tenter. It can be provided that the fixation is carried out by the clamping frame in direct connection to the hot melt adhesive application.
  • a the properties of the hot melt adhesive not influencing extender Primarily the processing properties of the hot melt adhesive should not be adversely affected.
  • the use of a cost effective extender makes it possible to reduce the proportion of hot melt adhesive and thus to reduce the cost of the coating as a whole. At the same time, a designated minimum order per area can be achieved.
  • a suitable additive high density
  • powdered calcium carbonate (chalk) or aluminum hydroxide can be used powdered calcium carbonate (chalk) or aluminum hydroxide.
  • chalk powdered calcium carbonate
  • aluminum hydroxide gives the additional advantage of a flame retardant effect (flame retardant) by the hot melt application.
  • the coated web material can be prepared against static charges. This is particularly advantageous in the case of web material in the field of carpet flooring.
  • fibers portions of carbon fibers can be used.
  • expandable gas-filled microspheres are used as an additive by the action of heat, the activation temperature of which is preferably above the melting temperature of the hot-melt adhesive. The activation of the microspheres then takes place by a heat treatment of the coated web at a temperature at which the microspheres are activated. This can be done by a downstream of the hot melt adhesive band furnace.
  • the activation temperature of the microspheres admixed as an additive may also be selected such that they are already activated in the region of the slot nozzle during application to the material web, and the hotmelt adhesive is thus applied in the form of a foam.
  • a further layer in the form of a woven fabric, a nonwoven or a second backing to be applied to the textile material or the backing prior to solidification of the molten thermoplastic hot melt adhesive.
  • a hot melt adhesive is used for solidifying the textile material or the carpet, the properties of which are optimally adapted to the hardening effect to be achieved.
  • the melt adhesive temperature selected for penetration into the fiber bundles in conjunction with the thermal aftertreatment described above thus effects the fastest possible penetration of the adhesive into the structure.
  • another adhesive is now used, the function of which is to fix the further layer or the second back.
  • This additional adhesive can therefore have a significantly higher viscosity, since this only needs to be applied to the threads or pile loops penetrated by the first adhesive. zen, but does not have to penetrate it.
  • thermoplastic hot melt adhesive and heat-expandable gas-filled microspheres is applied to the secondary backing and the first still molten thermoplastic hot melt adhesive.
  • microspheres are foamed directly by another heat treatment and cooled together.
  • the device for the hot melt adhesive application means for heating and / or cooling at least the back of the textile material or the carpet. If the textile material or the back side of a carpet still undergoes a heat treatment after the hot melt application, the time in which the hot adhesive, which has been heated by heating to a low-viscosity state, can penetrate into the fiber material of the threads or pile loops is increased.
  • the textile material or the carpet is preferably conveyed by means of a tenter through the furnace and / or the cooling section. This measure is particularly advantageous if a shrinkage of the textile material or of the carpet is to be expected by a subsequent to the hot melt application heat treatment or by the application of adhesive itself.
  • the invention is particularly advantageous if the device for hot melt adhesive application in the region of the guidance of the textile material or of the carpet is arranged by the tensioning ram or if the material or the rug is directly in contact with it. At the end of the hot melt application is taken over by the clamping frame.
  • FIG. 1 shows a first embodiment of the invention, in which a carpet 1 processed in a preceding inking station, not shown, is guided over a drying drum 2 with a round clamping frame.
  • a device C for corona treatment is arranged upstream of a slot nozzle 5.
  • Via the slot nozzle 5 is applied to the back of the carpet 1 to a designated temperature heated thermoplastic (hot melt adhesive).
  • the slot nozzle is assigned to a region in which the carpet 1 is conveyed vertically upwards.
  • the hotmelt adhesive has such a low viscosity at the appropriately selected processing temperature that it can penetrate into the fibers of the pile loops by virtue of the capillary action.
  • the carpet 1 is conveyed after being deflected by a cooling section 14.
  • the transport of the carpet 1 through the cooling section 14 is effected either by means of a circulating belt or, if shrinkage of the carpet 1 can not be ruled out by the temperature effect of the hot melt adhesive application 5, by means of a tentering frame 17.
  • the cooling takes place by means of blown air and / or air sucked through the carpet material.
  • FIG. 15 shows the hotmelt adhesive application 5 designed as a slot nozzle, to which a hot melt adhesive prepared by a heated twin-screw extruder 26 is fed via a feed pump 29.
  • a feed pump 29 Depending on the width of the slot 5, one or more distributors together with feed pumps are arranged here.
  • the twin-screw extruder 26 is assigned a storage container 27 for charging with the hot-melt adhesive material present as granules. Furthermore, a further storage container 28 is provided, via which the twin-screw extruder 26 an additive can be supplied. In the twin-screw extruder 26, the granules of the hot melt adhesive are melted and mixed with the additive present as powder and supplied.
  • FIG. 15 The arrangement described here (FIG. 15) can also be used in the other embodiments described below.
  • the carpet 1 is guided over a drying drum 2 with round clamping frames as described above.
  • a hot melt adhesive application on the back of the carpet 1 takes place via a slot die.
  • a secondary backing 9 arranged on a roll 8 is placed on the back of the carpet 1 covered with the hot melt adhesive and applied by the pressure of the pressure roll 9 ironed this.
  • the occupied with the secondary backing carpet 1 is conveyed through a circulating belt or a tenter through a belt furnace 6 with subsequent cooling section 14.
  • the heating or cooling of the carpet-second backbone composite takes place by means of blowing or blowing air.
  • a heat treatment can be carried out by means of infrared radiators.
  • the web of the carpet 1 passes through a goods store 15 with a plurality of movably mounted deflection rollers before the carpet 1 is received on a winder 16.
  • a carpet 1 rolled up on a roll 3 is provided.
  • the carpet 1 thus has ambient temperature.
  • the back of the carpet 1 is preheated.
  • two slot nozzles 5, 7 are arranged successively, through which preferably two differently viscous hot melt adhesives are applied to the back of the carpet.
  • the slot nozzle 5 the application of a low-viscosity hot melt adhesive, which is able to penetrate into the fibers of the pile loops due to its low viscosity at the processing temperature.
  • a higher-viscosity hot-melt adhesive is applied, which serves to fix a second backing provided on a roll 8 and placed on the back side of the carpet 1 via a pressure roller 9. Subsequently, carpet 1 with applied secondary backing pass through a belt furnace 6 and a cooling section 14 on a circulating belt 17 or a tenter frame.
  • the embodiment according to FIG. 4 is also based on a carpet 1 provided on a roll 3, which has an ambient temperature.
  • the rear side of the carpet 1 is preheated by means of infrared heating 4, via a slit nozzle 5 arranged in the upwardly directed part of the carpet support, a hot melt application is effected in a temperature range which gives the hotmelt adhesive a viscosity which is so low that the latter becomes moist due to the capillary action Polschlingen penetrates.
  • Via a circulating belt 17 or fixed by a tenter frame the carpet 1 passes through a belt furnace 6 with the hot melt adhesive applied on the back. This application of heat prevents too rapid a cooling of the applied melt fabric, which thus has a greater contact time with the fibers penetrate the pile loops.
  • a further preferably higher-viscosity hot melt adhesive is applied via a slot nozzle arranged downstream of the belt furnace in order to directly impose a secondary backing provided on a roll 8 via a pressure roller 9 on the back side of the carpet 1.
  • the carpet 1 is still running over a cooling section 14th
  • microspheres expandable by the action of heat are applied to the outside of the secondary backing following application of the secondary backing via the pressure roller 9 via a spreading application.
  • infrared heating 12 the unexpanded microspheres 11 are expanded - the outer side of the second back undergoes a damping layer through these expanded microspheres 13, which also results in a skid resistance.
  • Figures 6 a) - c) show a fiber bundle 18 with a glue application according to the prior art.
  • the bundle of fibers 18 is applied from the side of the adhesive application (from above) with a quantity of adhesive 19.
  • the adhesive 19 encloses the fiber bundle 18 either completely (FIG. 6 c) or only partially (FIG. 6 b), depending on the quantity applied.
  • an adhesive 20 is used, which penetrates into the composite of the fibers 18 (the fiber bundle) due to its viscous properties in connection with the intended processing. According to the order dosage
  • the amount of adhesive in the metering is selected such that the adhesive 20 surrounds the fiber bundle 18 even in a small layer thickness on its outer surface.
  • This provides, in addition to reinforcement and stiffening, a kind of protective layer around the complete bundle 18.
  • the outer structure of the fiber bundle 18 (the filament) is maintained, which is e.g. may be necessary in view of appropriate steps in the finishing.
  • FIGS. 8a) -c) show, in principle, three phases of the adhesive application according to the invention.
  • FIG. 8 a) shows the situation directly after the adhesive application.
  • the thermal aftertreatment e.g., belt furnace, infrared radiator
  • the adhesive 20 penetrates from the application side into the fiber composite 18 (Fig. 8b) until finally the fully penetrated situation according to Fig. 8c) is reached.
  • the amount of adhesive application, the application temperature, the processing speed and the type and strength of the thermal post-processing are adapted to the properties of the adhesive and the type of fibers, the fiber composite, the thread.
  • FIG. 9a), b) and c) each show a pile loop 21 in a carrier layer 22 of a carpet.
  • an adhesive 20 is applied, wherein an amount of adhesive that is too small (FIG. 9 a) results in only internal hardening of the fibers 18 of the pile loops 21.
  • An adhesion of the pile loops 21 to the carrier layer 22 is carried out only to a very small extent.
  • Fig. 9b) shows the ideal situation that can be achieved by the method according to the invention.
  • the fiber composite of the pile loop 21 is completely saturated, at the same time the pile loop 21 is bonded to the support layer 22 (the back of the carpet). If the application of adhesive is too high, the applied adhesive 20 also penetrates the carrier layer 22 as far as the visible side, which in particular can lead to an optical impairment.
  • FIG. 10 shows a cross section through a fiber bundle 18, which is penetrated by hotmelt adhesive 20 in the manner described above.
  • a second adhesive 23 as has been described in particular with reference to FIGS. 3 to 5, the basis for applying a second back 24 is thus created, which is shown in FIG. 11 is shown.
  • an adhesive 23 can be used, which is optimally adapted in its properties to this task.
  • Figures 12 and 13 show a further application of the method according to the invention.
  • a fabric 25 consisting of weft and warp threads of a fabric or fabric is shown. Webteppichs.
  • the adhesive application results in a penetration of the adhesive into the warp and weft threads (the fiber bundles of the respective threads), which results in impregnation and solidification of the fabric (FIG. 12).
  • a further adhesive 13 By applying a further adhesive 13, a further solidification of the fabric 25 can be achieved.
  • the order of the further adhesive 23 can also serve to apply a further layer (fabric, nonwoven fabric).
  • V KT exactly r Capillary radius in mm H Steighhe. "mmx Rising height in mr Capillary radius in mm ⁇ Viscosity in Ns / m 2 ⁇ Wetting angle ⁇ Surface tension- 'in N / m ⁇ Surface tension • in N / mp Density in kg / m 3 p Density in kg / m 3 g gravitational acceleration (10 m / g 2 ) g gravitational acceleration (10 m / g 2 )
  • the capillary radius r here is the radius of the effectively resulting capillary between the fibers in a fiber bundle, in a thread.
  • the time required for complete penetration is thus lower for a lower viscosity adhesive than for a higher viscosity adhesive.
  • the thermal aftertreatment (exposure time) of a hot melt adhesive which penetrates the fiber bundles quickly and the threads is therefore lower than with a high-viscosity adhesive. Accordingly, the processing line is to be dimensioned.
  • the suitability of a fiber bundle or a fabric for impregnation with the corresponding adhesives can be determined by a simple rapid test. For this purpose, immerse the tissue or fiber bundle in water and determined after a minute, the height of rise of the water in the tissue or fiber bundle. If it is more than 3 mm, the fiber bundle or fabric is suitable for impregnation according to the invention.
  • FIG. 14 shows the dependence of the viscosity of three different thermoplastic hot melt adhesives SKi, SK2 and SK3 on the temperature.
  • SKi is a very low-viscosity hot-melt adhesive which has a very low viscosity in the region of the processing temperature and has good penetration properties, but also remains very soft at normal temperature, ie in the cured state, and therefore does not give stable solidification.
  • SK2 is a hot-melt adhesive that has a viscosity of less than 5 Pas in the processing temperature range, but has sufficient hardness in the cured state for stable solidification.
  • SK3 is an ideal hot melt adhesive for applying, fixing a second layer, a second back. Its high viscosity also penetrates the processing temperature range of the hot-melt adhesive SK2 this only to a very small extent by the fabric of a carpet backing layer, so that disturbing phenomena on the visible side of the carpet can be excluded. Therefore, the careful selection of a suitable hot-melt adhesive and the corresponding adjustment of the processing parameters are always required to fulfill a specific task.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Carpets (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

L'invention concerne un procédé de solidification d'un matériau textile qui présente des fibres comprimées, sous la forme de faisceaux de fibres, de fils ou similaires, selon lequel un adhésif thermoplastique fondu est appliqué sur un côté du matériau textile. L'invention propose d'utiliser un adhésif à l'état fondu qui, à la température de traitement prévue, pénètre par effet capillaire dans les fibres comprimées ou les faisceaux de fibres grâce sa basse viscosité.
PCT/DE2008/001889 2007-12-18 2008-11-14 Procédé et dispositif de solidification d'un matériau textile WO2009076920A1 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
DE102007061612 2007-12-18
DE102007061612.2 2007-12-18
DE102008010091A DE102008010091A1 (de) 2007-12-18 2008-02-20 Verfahren und Vorrichtung zur Verfestigung von textilem Material
DE102008010091.9 2008-02-20
DE102008020716A DE102008020716A1 (de) 2008-04-24 2008-04-24 Verfahren und Vorrichtung zur Verfestigung von textilem Material
DE102008020716.0 2008-04-24
DE102008045753.1 2008-09-04
DE102008045753A DE102008045753A1 (de) 2008-09-04 2008-09-04 Verfahren und Vorrichtung zur Verfestigung von textilem Material

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WO2009076920A1 true WO2009076920A1 (fr) 2009-06-25
WO2009076920A8 WO2009076920A8 (fr) 2009-08-13

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Cited By (4)

* Cited by examiner, † Cited by third party
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DE102009021077A1 (de) 2009-05-13 2010-11-25 Fleissner Gmbh Verfahren und Vorrichtung zum Auftrag eines fluiden Mediums auf eine textile Warenbahn
EP2734367A4 (fr) * 2011-07-20 2015-04-15 Upm Raflatac Oy Stratifié pour étiquette, procédé et système de fabrication d'un stratifié pour étiquette
CN109455547A (zh) * 2018-12-04 2019-03-12 东莞市威骏不织布有限公司 超大宽幅不织布制作方法及设备
EP3625054A4 (fr) * 2017-05-15 2020-12-16 Stora Enso Oyj Procédé amélioré de couchage par extrusion de substrats à base de fibres

Families Citing this family (1)

* Cited by examiner, † Cited by third party
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CN108547029A (zh) * 2018-05-16 2018-09-18 抚顺元制带有限公司 一种预先热处理的瓦楞纸板带织物输送带制作工艺

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US3537946A (en) * 1967-03-30 1970-11-03 Stein Hall & Co Inc Method of combining textile materials and products thereof
WO1995003447A1 (fr) * 1993-07-23 1995-02-02 Shell Internationale Research Maatschappij B.V. Support pour tapis derive de compositions de copolymeres sequences
US5445860A (en) * 1992-12-29 1995-08-29 Gff Holding Company Tufted product having an improved backing
WO1999035327A2 (fr) * 1998-01-12 1999-07-15 Mannington Mills, Inc. Envers de revetement de surface, contenant des microspheres polymeres, et procedes de fabrication correspondant
WO2004024438A1 (fr) * 2002-09-13 2004-03-25 E.I. Du Pont De Nemours And Company Moquette presentant une retention de touffes amelioree

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3537946A (en) * 1967-03-30 1970-11-03 Stein Hall & Co Inc Method of combining textile materials and products thereof
US5445860A (en) * 1992-12-29 1995-08-29 Gff Holding Company Tufted product having an improved backing
WO1995003447A1 (fr) * 1993-07-23 1995-02-02 Shell Internationale Research Maatschappij B.V. Support pour tapis derive de compositions de copolymeres sequences
WO1999035327A2 (fr) * 1998-01-12 1999-07-15 Mannington Mills, Inc. Envers de revetement de surface, contenant des microspheres polymeres, et procedes de fabrication correspondant
WO2004024438A1 (fr) * 2002-09-13 2004-03-25 E.I. Du Pont De Nemours And Company Moquette presentant une retention de touffes amelioree

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009021077A1 (de) 2009-05-13 2010-11-25 Fleissner Gmbh Verfahren und Vorrichtung zum Auftrag eines fluiden Mediums auf eine textile Warenbahn
EP2734367A4 (fr) * 2011-07-20 2015-04-15 Upm Raflatac Oy Stratifié pour étiquette, procédé et système de fabrication d'un stratifié pour étiquette
EP3625054A4 (fr) * 2017-05-15 2020-12-16 Stora Enso Oyj Procédé amélioré de couchage par extrusion de substrats à base de fibres
CN109455547A (zh) * 2018-12-04 2019-03-12 东莞市威骏不织布有限公司 超大宽幅不织布制作方法及设备

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