CA1182067A - Process for simultaneous consolidation and coating of a non-woven textile - Google Patents
Process for simultaneous consolidation and coating of a non-woven textileInfo
- Publication number
- CA1182067A CA1182067A CA000392878A CA392878A CA1182067A CA 1182067 A CA1182067 A CA 1182067A CA 000392878 A CA000392878 A CA 000392878A CA 392878 A CA392878 A CA 392878A CA 1182067 A CA1182067 A CA 1182067A
- Authority
- CA
- Canada
- Prior art keywords
- bonding agent
- adhesive
- areas
- textile
- woven textile
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/435—Polyesters
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
- D04H1/66—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions at spaced points or locations
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M17/00—Producing multi-layer textile fabrics
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
- Treatment Of Fiber Materials (AREA)
- Nonwoven Fabrics (AREA)
- Manufacturing Of Multi-Layer Textile Fabrics (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Printing Plates And Materials Therefor (AREA)
Abstract
ABSTRACT
The consolidation and coating of a non-woven textile for applications such as interfacing materials comprises, the simultaneous pressing and printing of a radiation polymerizable bonding agent onto the underside of the non-woven textile while applying a thermoplastic adhesive to the upper side, using the hot-melt technique. The adhesive is prevented from substantial penetration into the textile by the presence of the cooler bonding agent. The bonding agent is then polymerized by subjecting the textile to appropriate irradiation which may be ultra-violet or electron. The superposed areas may constitute regular or statistical raster patterns.
The consolidation and coating of a non-woven textile for applications such as interfacing materials comprises, the simultaneous pressing and printing of a radiation polymerizable bonding agent onto the underside of the non-woven textile while applying a thermoplastic adhesive to the upper side, using the hot-melt technique. The adhesive is prevented from substantial penetration into the textile by the presence of the cooler bonding agent. The bonding agent is then polymerized by subjecting the textile to appropriate irradiation which may be ultra-violet or electron. The superposed areas may constitute regular or statistical raster patterns.
Description
This lnvention relater to a process for the 61multaneous and continuous consolidation and coatlng of a non-woven textile, particularly for interlinlng or interfacing materials, ~ith a bonding agent and with an adhesive mass, in which the bonding agent is pressed or printed on fro~ one side simultaneously against an adhesive applied from the other side, in superimposed areas spaced from one another.
Such a process is already known from Japanese patent application lald open 9 January l975 under number l667/l975, inventors Katsuoshi Yamauchi et al according to which the bonding agent and the adhesive are applied while the textile is passed between a pair of engraved or screen rollers. The lmpressions which result on both sides are similar but this is not the intended object in using the two substances.
Bonding agents serve primarily to fasten the fibres of a non-~oven tcxtile to one another and thus to impart strength to the fabric. This strength rises as the number of fibres bonded together rises. It is thus desirable that the bonding agent penetrate into the interior of the fAbric belng treated and that, after consolidation, the bonding agent remain dl~trlbuted as evenly as possible throughout the overall cross-sectlon.
Cross-linkable pol~ner substances, particularly, find praccical application as bonding agents.
~ dhesives ayplied on the surfaces of interlining or interfacing materials serve to permit their adhesion to an ad~acent fabric clothing material, to strengthen, shape and stiffen the fabric. Adhesives for this purpose are thermo-plastic7 and are usually activated by the application of pressure and heat, for example9 by use of a presslng lron. As dl~tinguished therefore from bonding agents, ~t is desirable that such adhesives not penetrate into the interior of the textile during the ironing process, but remain as far as possible undispersed ac the surface to effect the mutual adhesion of the interlining to the material to be strengthened.
6~
The process of the Japanese application l667/lg75 described above makes it possible to superimpose the ~onding agene and the adhesive over one another on the upper and on the under side of t~e textile respectively. The identical printing processes employed for the treatment of the upper and under sides result in equal pressing forces and thus Lt is extremely dlfficult to effect the desired diiferential penetration of the bonding agent and the adhesive. It is not possible respectively to adjus~ the sizes of the applied areas, and at greater printing speeds, particularly when treating non-woven textiles which have not been previously consolidated, blurring of the printing occurs, thus yielding indeterminate characteristics for the interfacing material and its fixing surface.
Already known from European Patent 12776 published 15 December 1982, Lnventors Walter Fottinger et al,~s a process which permits the consolidation o~ ~ non-woven textile by printlng with an ultra-violet hardenable bonding agent, subsequently irradiated with a high pressure mercury lamp at an operating speed of more than 50m/min. The question of application of a mass of ~dlle~ivc ls not addressed~
~ n ~he present disclosure simultaneous and continuous application of a bonding agent and an adhesive on an unconsolidated, non-woven te~tile is described in which a precise printed image in the form of areas with superimposed centre lines is achieved, and which makes it possible to vary the specific quantities applied as well as the pressing effect on both sides, at high operating speeds. Reduction of the specific energy consumption required is one advantage which can flow from this.
As here described,a bonding agent which can be cross-linked by irradiation is printed against a thermo-plastlc adhesive mass, itself printed onto the upper side of a non-woven textile by the hot-melt principle. The bonding agent is then lrradiated to effect polymerization.
Neither the bonding agent paste nor the charge of adhesive contain any components which require removal by expensive and subsequent drying procedures. The cross-linking of the bonding agent can be carried out with high-energy lrradiation almost instantaneouslyO The new yrocess, being a single stage method, is not only extraordinarily free of problems, but also permits operating speeds greater, for example, than 50 to l50m/min while at the sarne time having a reduced specific energy consumption. It is a considerable advantage that preliminary consolidation of the textile is not necessary. On the contrary, it is sufficient that its inner structure be consolidated by preliminary pressing to the point at which the confLguration of the fibres is not disturbed during the printing process. This objective can be achieved wichout difficulty with a non-woven textile consisting of fihres laid up in a random distribution and having a basic length of at least 25 mm.
The bondlng agent paste or the adhesive "melt" are applied on each respective slde in areas, whose centre points are arranged on a common centre linc and are arranged symmetrlcally to one another.
~he ~i~e of these area~ can be varied rela~ively to one another and thus cnrl be ~o ~stabli~hed that the de~lred result in eflch case, namely the consolldatlon of the textile and thermal-flxabillty to another material, can be achieved. It has been found to be advantageous to apply the bonding agent ln small areas having a breadth at least as lar~e as that of the areas of the aclhesive. Particularly good prevention of the penetration of the adhesive mass through the flxing layer durlng lronlng can be achieved if the areas of the bonding agent are of a greater diameter than the areas of the adhesive. 'rhis difference should not exceed 60%, to prevent any undesired stiffening of the fixing layer.
The areas are distributed on the interlining in a surface raster pattern, which can be either evenly or unevenly distributed. Th~s can influence the drape of the textile7 in addition to affecting the sti~fness.
The printing processes used for applying the adhesive mass and the bonding agent Carl be of fundamentally different types, whereby the two substances which fulfil different functions can be applied in a coordinated manner. It is also of importance that of the two counter-rotating printing rollers, at least one displays soft-resilient characteristics, so tha~ any dLfferences in the thickness or elasticity of the textile being coated are cancelled out and dLsruption of the prlnted image is avoLded.
The bonding agent can be applied by using high, medium or low pressure rollers having a soft-resilient covering of rubber. In all three cases, it is possible to achieve good results in introducing the substance into the interior of the fabric. The high pressure process carries with it the additional atJv~ntage of particularly high elastLcity of the surface with good resistance to fouling by fibre residues which separate from the surface of the textile.
In the high and medium pressure process the quantities of bonding agent applied c~n b~ varied continuously by adjustment of the pressure. Where corresponding ~hl~rl~etJ i~re required in the use of low pressure, a modlfied roll must be used.
Modified rolls are also necessary if the si~es of the areas are to be changed ln any of the printing processes described.
The use of a bonding agent which can be cross-linked with high intensity ultra-violet radiation makes it possible to achieve almost spontaneous hardening of the bonding agent. The surplus thermal energy which is unavoidably present, and which can amount to 50% of the total, may sometimes lead to separation of the fabric parts if not adequately cooled, and also to very poor sharpness of outline of the thermo-plastic adhesive mass applied to the upper surface.
Thls disadvantage can be avoided if a bonding agent cross-linkable ~y ~ ~8Z(~7 electron radiation is used, and electron irradiatlon apparatus replacegthat for the ultra violet. An energy of about 50 to about 500 keV has been found suitable. In this case no further heating of the adhesive mass takes place during the polymerization of the ~onding agent. ~n the contrary, the spontaneous cooling of the thermo-plastic melted adhesive mass against the bondlng agent which has been printed on at a temperature of>
for example, only 60C, leads to spontaneous hardening and thus to an extremely precise image, or print pattern.
All appropriate adhesives can be used, for example, those based on polyolefins, copolyamides, polyurethanes or copolyesters. In general the melting point should be in the range between 100C and 130C.
The adheslve is prlnted onto the fabric in molten for~ with a heated nap roll. To cut down contamination of the surface this roll is provided, for exa~ple, with a sllicone or PTFE coating, The upper and the lower print rolls are connected through a gear trnn~mlsslon, which permlt9 the superimposed constant arrangement of the ar0as prlnted with bonding agent and adhesive. Such a rigid drive permits mutual slignment of very great precision in which the centre points of the areas can cover each other in good register at a workin~ wldth acro~s the fabrlc of more than l m,with areafl of a diameter of le~s than l m~.
More particularly in accordance ~ith the invention there is provided a pro~ess for the sim~ltaneous consolidation and coating of a non-woven textile material with a bonding agent and an adhesive, comprising the steps of;
pressing a radiation polymerizable bonding agent onto one side of said material, while simultaneously hot-melt pressing a thermo-plastic adhes~ve onto the other side of said material, the bonding agent and adhesive being applied on superposed areas separated by thlckness of the material, . 5 _ ~ .
6~7 allowing sald bondlng agent to penetrate into said materlal, subs~antial penetration of said adhesive belng checked by said bondlng agent, and irradiatlng said material to ,oolymeri~e the bonding agent.
Speciflc embodiments of the invention will now be described ha~lng reference to the accompanying drawing and the following example:
Uslng a plurality of longitudinally oriented carding devices, a non-woven textile of 50% polyester fibres of 1.7 dtex/38 mm and 50% polyestr flbres 3.3 of dtex/60 mm and speclfic weight of 25 g/m2 was produced at a 3peed of 65 m/mln, The fabric was passed between a pair of couneer pressure rollers at a linear pressure of 13 kpjcm~ and surface tempera~ure of 165C9 where it was consolidated.
Immedlately afterwards the fabrlc was passed through an imprintlng device us lllustrated ln the drawing.
The lower roll 2 was a rubber hlgh pressure roll, the rubber belng reslitant to organlc liquids with a Shore-A h,ardness of 65. The printlng ~() - Sa -pattern on the roll was divided into two sections 9 the first was a 17 mesh point series and the second a so-called computer point matrix in which there were 52 statistically distributed protrusions per square centim~ter. Identical special individual hot-melt engraved rolls were associated with each of these two printing rolls.
The diameter of the printing points on the surfaces of the high pressure rolls amounted to 0.8 mm, and the engraving wa~ 0.4 mm deep.
A bonding agent mlxture described below was transferred from a pre-polymer bath 5 preheated to 60C via a pick-up roll 4 of rubber through a transfer roll 3 also heated to 60C to the rubber high pressure roll 20 The roll 3 had a 60 mesh engraving and was chromium platedO The speed of the pick-up roll 4 was ad~usted so that imprinting from the high pressure roll onto the fabric resulted at 2.5 g/m2. The two rolls 2 and 6 were adjusted 80 that the centres o the areas being lmprinted from both sides with bonding agent and adhesive respectively coincided.
The bonding agent mixture had the following composition:
Epoxy acrylate 70 parts Oli~otrlacrylate 30 "
Benzophenon 2 "
Benzyldimethylketal 1 "
N-Methyl-Diethanolamine 3 "
Optical brightener 0.03 "
A copolyester was employed as a fusible adhesive, the melting range of which lay between 113C to 116C and which had a melting index of 12/140C at 18 g/10 min. It was melted in an extruder to a final temperature of 175~C and passed through a heated broad slot nozzle to a heated adhesive bath 7,` The engraved roll 6 was at a temper~ture of 170C.
In both ln8tances the nap diameter of the engraved roll amounted to 6~
0.55 mm and the nap depth to 0.2 mm~
The nap of the rotating engraved roll filled with molten polymer from the bath 7 which polymer was from ehere transferred to the non-woven textile.
Slmultaneously the bondlng agent a~ a temperature of 60C was pressed into the lnterior of the fabrlc from Lhe under side by the high pressure roll 2. This led to spontaneous cooling and hardening of the adhesive on the upper surfaceO
The adhesive was applled at 14 g/~m. No further processing of the fusible adhe~ive was requlred.
After leaving the prlnting device the textile was moved on a metal carrier through a light lock into a light cabinet where it was passed ~et~een an upper and a lower row of high-pre~sure mercury lamps havlng a power output of 200 Watt/cm. The bonding agent hardèned instantaneously. The fabric left the cabinet through a second light lock,and after passing through a cooling roll wa~ cut into two strips each 90 cm wide, and then rolled.
The thermally fixable interlinlng fabrLc produced in this manner is extremely ~oft and has good drape. It displays good resistance to chemical ~'Leaning and shows excellent laundering properties. It can be processed very easily ln conventional flat and continuous presses and even when wet has no tendency for the adheslve to bleed through the interlining fabric.
Such a process is already known from Japanese patent application lald open 9 January l975 under number l667/l975, inventors Katsuoshi Yamauchi et al according to which the bonding agent and the adhesive are applied while the textile is passed between a pair of engraved or screen rollers. The lmpressions which result on both sides are similar but this is not the intended object in using the two substances.
Bonding agents serve primarily to fasten the fibres of a non-~oven tcxtile to one another and thus to impart strength to the fabric. This strength rises as the number of fibres bonded together rises. It is thus desirable that the bonding agent penetrate into the interior of the fAbric belng treated and that, after consolidation, the bonding agent remain dl~trlbuted as evenly as possible throughout the overall cross-sectlon.
Cross-linkable pol~ner substances, particularly, find praccical application as bonding agents.
~ dhesives ayplied on the surfaces of interlining or interfacing materials serve to permit their adhesion to an ad~acent fabric clothing material, to strengthen, shape and stiffen the fabric. Adhesives for this purpose are thermo-plastic7 and are usually activated by the application of pressure and heat, for example9 by use of a presslng lron. As dl~tinguished therefore from bonding agents, ~t is desirable that such adhesives not penetrate into the interior of the textile during the ironing process, but remain as far as possible undispersed ac the surface to effect the mutual adhesion of the interlining to the material to be strengthened.
6~
The process of the Japanese application l667/lg75 described above makes it possible to superimpose the ~onding agene and the adhesive over one another on the upper and on the under side of t~e textile respectively. The identical printing processes employed for the treatment of the upper and under sides result in equal pressing forces and thus Lt is extremely dlfficult to effect the desired diiferential penetration of the bonding agent and the adhesive. It is not possible respectively to adjus~ the sizes of the applied areas, and at greater printing speeds, particularly when treating non-woven textiles which have not been previously consolidated, blurring of the printing occurs, thus yielding indeterminate characteristics for the interfacing material and its fixing surface.
Already known from European Patent 12776 published 15 December 1982, Lnventors Walter Fottinger et al,~s a process which permits the consolidation o~ ~ non-woven textile by printlng with an ultra-violet hardenable bonding agent, subsequently irradiated with a high pressure mercury lamp at an operating speed of more than 50m/min. The question of application of a mass of ~dlle~ivc ls not addressed~
~ n ~he present disclosure simultaneous and continuous application of a bonding agent and an adhesive on an unconsolidated, non-woven te~tile is described in which a precise printed image in the form of areas with superimposed centre lines is achieved, and which makes it possible to vary the specific quantities applied as well as the pressing effect on both sides, at high operating speeds. Reduction of the specific energy consumption required is one advantage which can flow from this.
As here described,a bonding agent which can be cross-linked by irradiation is printed against a thermo-plastlc adhesive mass, itself printed onto the upper side of a non-woven textile by the hot-melt principle. The bonding agent is then lrradiated to effect polymerization.
Neither the bonding agent paste nor the charge of adhesive contain any components which require removal by expensive and subsequent drying procedures. The cross-linking of the bonding agent can be carried out with high-energy lrradiation almost instantaneouslyO The new yrocess, being a single stage method, is not only extraordinarily free of problems, but also permits operating speeds greater, for example, than 50 to l50m/min while at the sarne time having a reduced specific energy consumption. It is a considerable advantage that preliminary consolidation of the textile is not necessary. On the contrary, it is sufficient that its inner structure be consolidated by preliminary pressing to the point at which the confLguration of the fibres is not disturbed during the printing process. This objective can be achieved wichout difficulty with a non-woven textile consisting of fihres laid up in a random distribution and having a basic length of at least 25 mm.
The bondlng agent paste or the adhesive "melt" are applied on each respective slde in areas, whose centre points are arranged on a common centre linc and are arranged symmetrlcally to one another.
~he ~i~e of these area~ can be varied rela~ively to one another and thus cnrl be ~o ~stabli~hed that the de~lred result in eflch case, namely the consolldatlon of the textile and thermal-flxabillty to another material, can be achieved. It has been found to be advantageous to apply the bonding agent ln small areas having a breadth at least as lar~e as that of the areas of the aclhesive. Particularly good prevention of the penetration of the adhesive mass through the flxing layer durlng lronlng can be achieved if the areas of the bonding agent are of a greater diameter than the areas of the adhesive. 'rhis difference should not exceed 60%, to prevent any undesired stiffening of the fixing layer.
The areas are distributed on the interlining in a surface raster pattern, which can be either evenly or unevenly distributed. Th~s can influence the drape of the textile7 in addition to affecting the sti~fness.
The printing processes used for applying the adhesive mass and the bonding agent Carl be of fundamentally different types, whereby the two substances which fulfil different functions can be applied in a coordinated manner. It is also of importance that of the two counter-rotating printing rollers, at least one displays soft-resilient characteristics, so tha~ any dLfferences in the thickness or elasticity of the textile being coated are cancelled out and dLsruption of the prlnted image is avoLded.
The bonding agent can be applied by using high, medium or low pressure rollers having a soft-resilient covering of rubber. In all three cases, it is possible to achieve good results in introducing the substance into the interior of the fabric. The high pressure process carries with it the additional atJv~ntage of particularly high elastLcity of the surface with good resistance to fouling by fibre residues which separate from the surface of the textile.
In the high and medium pressure process the quantities of bonding agent applied c~n b~ varied continuously by adjustment of the pressure. Where corresponding ~hl~rl~etJ i~re required in the use of low pressure, a modlfied roll must be used.
Modified rolls are also necessary if the si~es of the areas are to be changed ln any of the printing processes described.
The use of a bonding agent which can be cross-linked with high intensity ultra-violet radiation makes it possible to achieve almost spontaneous hardening of the bonding agent. The surplus thermal energy which is unavoidably present, and which can amount to 50% of the total, may sometimes lead to separation of the fabric parts if not adequately cooled, and also to very poor sharpness of outline of the thermo-plastic adhesive mass applied to the upper surface.
Thls disadvantage can be avoided if a bonding agent cross-linkable ~y ~ ~8Z(~7 electron radiation is used, and electron irradiatlon apparatus replacegthat for the ultra violet. An energy of about 50 to about 500 keV has been found suitable. In this case no further heating of the adhesive mass takes place during the polymerization of the ~onding agent. ~n the contrary, the spontaneous cooling of the thermo-plastic melted adhesive mass against the bondlng agent which has been printed on at a temperature of>
for example, only 60C, leads to spontaneous hardening and thus to an extremely precise image, or print pattern.
All appropriate adhesives can be used, for example, those based on polyolefins, copolyamides, polyurethanes or copolyesters. In general the melting point should be in the range between 100C and 130C.
The adheslve is prlnted onto the fabric in molten for~ with a heated nap roll. To cut down contamination of the surface this roll is provided, for exa~ple, with a sllicone or PTFE coating, The upper and the lower print rolls are connected through a gear trnn~mlsslon, which permlt9 the superimposed constant arrangement of the ar0as prlnted with bonding agent and adhesive. Such a rigid drive permits mutual slignment of very great precision in which the centre points of the areas can cover each other in good register at a workin~ wldth acro~s the fabrlc of more than l m,with areafl of a diameter of le~s than l m~.
More particularly in accordance ~ith the invention there is provided a pro~ess for the sim~ltaneous consolidation and coating of a non-woven textile material with a bonding agent and an adhesive, comprising the steps of;
pressing a radiation polymerizable bonding agent onto one side of said material, while simultaneously hot-melt pressing a thermo-plastic adhes~ve onto the other side of said material, the bonding agent and adhesive being applied on superposed areas separated by thlckness of the material, . 5 _ ~ .
6~7 allowing sald bondlng agent to penetrate into said materlal, subs~antial penetration of said adhesive belng checked by said bondlng agent, and irradiatlng said material to ,oolymeri~e the bonding agent.
Speciflc embodiments of the invention will now be described ha~lng reference to the accompanying drawing and the following example:
Uslng a plurality of longitudinally oriented carding devices, a non-woven textile of 50% polyester fibres of 1.7 dtex/38 mm and 50% polyestr flbres 3.3 of dtex/60 mm and speclfic weight of 25 g/m2 was produced at a 3peed of 65 m/mln, The fabric was passed between a pair of couneer pressure rollers at a linear pressure of 13 kpjcm~ and surface tempera~ure of 165C9 where it was consolidated.
Immedlately afterwards the fabrlc was passed through an imprintlng device us lllustrated ln the drawing.
The lower roll 2 was a rubber hlgh pressure roll, the rubber belng reslitant to organlc liquids with a Shore-A h,ardness of 65. The printlng ~() - Sa -pattern on the roll was divided into two sections 9 the first was a 17 mesh point series and the second a so-called computer point matrix in which there were 52 statistically distributed protrusions per square centim~ter. Identical special individual hot-melt engraved rolls were associated with each of these two printing rolls.
The diameter of the printing points on the surfaces of the high pressure rolls amounted to 0.8 mm, and the engraving wa~ 0.4 mm deep.
A bonding agent mlxture described below was transferred from a pre-polymer bath 5 preheated to 60C via a pick-up roll 4 of rubber through a transfer roll 3 also heated to 60C to the rubber high pressure roll 20 The roll 3 had a 60 mesh engraving and was chromium platedO The speed of the pick-up roll 4 was ad~usted so that imprinting from the high pressure roll onto the fabric resulted at 2.5 g/m2. The two rolls 2 and 6 were adjusted 80 that the centres o the areas being lmprinted from both sides with bonding agent and adhesive respectively coincided.
The bonding agent mixture had the following composition:
Epoxy acrylate 70 parts Oli~otrlacrylate 30 "
Benzophenon 2 "
Benzyldimethylketal 1 "
N-Methyl-Diethanolamine 3 "
Optical brightener 0.03 "
A copolyester was employed as a fusible adhesive, the melting range of which lay between 113C to 116C and which had a melting index of 12/140C at 18 g/10 min. It was melted in an extruder to a final temperature of 175~C and passed through a heated broad slot nozzle to a heated adhesive bath 7,` The engraved roll 6 was at a temper~ture of 170C.
In both ln8tances the nap diameter of the engraved roll amounted to 6~
0.55 mm and the nap depth to 0.2 mm~
The nap of the rotating engraved roll filled with molten polymer from the bath 7 which polymer was from ehere transferred to the non-woven textile.
Slmultaneously the bondlng agent a~ a temperature of 60C was pressed into the lnterior of the fabrlc from Lhe under side by the high pressure roll 2. This led to spontaneous cooling and hardening of the adhesive on the upper surfaceO
The adhesive was applled at 14 g/~m. No further processing of the fusible adhe~ive was requlred.
After leaving the prlnting device the textile was moved on a metal carrier through a light lock into a light cabinet where it was passed ~et~een an upper and a lower row of high-pre~sure mercury lamps havlng a power output of 200 Watt/cm. The bonding agent hardèned instantaneously. The fabric left the cabinet through a second light lock,and after passing through a cooling roll wa~ cut into two strips each 90 cm wide, and then rolled.
The thermally fixable interlinlng fabrLc produced in this manner is extremely ~oft and has good drape. It displays good resistance to chemical ~'Leaning and shows excellent laundering properties. It can be processed very easily ln conventional flat and continuous presses and even when wet has no tendency for the adheslve to bleed through the interlining fabric.
Claims (9)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A process for the simultaneous consolidation and coating of a non-woven textile material with a bonding agent and an adhesive, comprising the steps of;
pressing a radiation polymerizable bonding agent onto one side of said material, while simultaneously hot-melt pressing a thermo-plastic adhesive onto the other side of said material, the bonding agent and adhesive being applied on superposed areas separated by thickness of the material, allowing said bonding agent to penetrate into said material, substantial penetration of said adhesive being checked by said bonding agent, and irradiating said material to polymerize the bonding agent.
pressing a radiation polymerizable bonding agent onto one side of said material, while simultaneously hot-melt pressing a thermo-plastic adhesive onto the other side of said material, the bonding agent and adhesive being applied on superposed areas separated by thickness of the material, allowing said bonding agent to penetrate into said material, substantial penetration of said adhesive being checked by said bonding agent, and irradiating said material to polymerize the bonding agent.
2. A process as defined in Claim 1, the bonding agent being ultra-violet radiation polymerizable and wherein the irradiation step is effected using a mercury vapour discharge lamp having a power output of at least 80 Watt/cm.
3. A process as defined in Claim 1, the bonding agent being polymerizable by electron irradiation, the irradiation step being effected by electron irradiation at an energy of 50 to 500 keV.
4. A process as defined in Claims 1, 2 or 3, wherein the bonding agent is printed in areas which coincide with the areas covered by the adhesive.
5. A process as defined in Claims 1, 2 or 3, wherein the areas constitute a regular raster pattern.
6. A process as defined in Claims 1, 2 or 3, wherein the areas constitute a statistical raster pattern.
7. A process as defined in Claim 1, 2 or 3 wherein the melting point of the adhesive is within the range of about 100°C to about 130°C.
8. A process as defined in Claim 1, 2 or 3 the adhesive being selected from polyolefins, copolyamides, polyurethanes and copolyesters.
9. A process as defined in Claim 1, 2 or 3 the bonding agent being applied to the textile material at a temperature not substantially exceeding 60°C.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3049037A DE3049037C2 (en) | 1980-12-24 | 1980-12-24 | Process for the simultaneous, continuous consolidation and coating of a nonwoven fabric |
| DEP3049037.0 | 1980-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1182067A true CA1182067A (en) | 1985-02-05 |
Family
ID=6120286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000392878A Expired CA1182067A (en) | 1980-12-24 | 1981-12-22 | Process for simultaneous consolidation and coating of a non-woven textile |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0054610B1 (en) |
| JP (1) | JPS57128248A (en) |
| AR (1) | AR229251A1 (en) |
| AT (1) | ATE8281T1 (en) |
| CA (1) | CA1182067A (en) |
| DE (2) | DE3049037C2 (en) |
| ES (1) | ES508331A0 (en) |
| ZA (1) | ZA818889B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8114794B2 (en) | 2005-06-28 | 2012-02-14 | Carl Freudenberg Kg | Elastic, soft and punctiformly bound non-woven fabric provided with filler particles and method for production and the use thereof |
| US8449947B2 (en) | 2000-08-05 | 2013-05-28 | Carl Freudenberg Kg | Thermal control nonwoven material |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5891859A (en) * | 1981-11-20 | 1983-05-31 | 日本バイリ−ン株式会社 | Production of nonwoven fabric |
| WO1996005359A1 (en) * | 1994-08-09 | 1996-02-22 | Asahi Kasei Kogyo Kabushiki Kaisha | Adhesive padding cloth, method of manufacturing the same and bonding agent for adhesive cloths |
| US6638605B1 (en) * | 1999-11-16 | 2003-10-28 | Allegiance Corporation | Intermittently bonded nonwoven disposable surgical laminates |
| DE10156734A1 (en) * | 2001-11-19 | 2003-05-28 | Truetzschler Gmbh & Co Kg | Device for consolidating a conveyable nonwoven fabric |
| GB2557836B (en) * | 2015-11-02 | 2022-12-28 | Trimaco Inc | Slip-resistant protective mat |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL276182A (en) * | 1961-04-05 | 1900-01-01 | ||
| NL7010013A (en) * | 1969-10-30 | 1972-01-11 | ||
| JPS5028094B2 (en) * | 1971-08-14 | 1975-09-12 | ||
| CH1306371A4 (en) * | 1971-09-06 | 1975-08-29 | Schaetti & Co Kunstoffwerk | Method for applying a uniformly distributed coating pattern consisting of thermoplastic or thermosetting plastic to a web of material |
| JPS4981659A (en) * | 1972-12-13 | 1974-08-06 | ||
| JPS565574B2 (en) * | 1973-05-07 | 1981-02-05 | ||
| JPS5042171A (en) * | 1973-08-22 | 1975-04-17 | ||
| JPS5361768A (en) * | 1976-11-12 | 1978-06-02 | Kanai Hiroyuki | Nonnwoven core fabric for iron adhering |
| EP0012776B1 (en) * | 1978-12-21 | 1982-12-15 | Firma Carl Freudenberg | Process for bonding non-woven fabrics |
| DE2914617C2 (en) * | 1979-04-11 | 1982-06-03 | Fa. Carl Freudenberg, 6940 Weinheim | Method and device for the simultaneous, continuous application of pastes to opposing surface zones of the front and back of a flexible, porous sheet-like structure |
-
1980
- 1980-12-24 DE DE3049037A patent/DE3049037C2/en not_active Expired
-
1981
- 1981-08-06 DE DE8181106160T patent/DE3164567D1/en not_active Expired
- 1981-08-06 EP EP81106160A patent/EP0054610B1/en not_active Expired
- 1981-08-06 AT AT81106160T patent/ATE8281T1/en active
- 1981-10-20 AR AR287149A patent/AR229251A1/en active
- 1981-12-11 JP JP56199970A patent/JPS57128248A/en active Granted
- 1981-12-22 ZA ZA818889A patent/ZA818889B/en unknown
- 1981-12-22 CA CA000392878A patent/CA1182067A/en not_active Expired
- 1981-12-23 ES ES508331A patent/ES508331A0/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8449947B2 (en) | 2000-08-05 | 2013-05-28 | Carl Freudenberg Kg | Thermal control nonwoven material |
| US8114794B2 (en) | 2005-06-28 | 2012-02-14 | Carl Freudenberg Kg | Elastic, soft and punctiformly bound non-woven fabric provided with filler particles and method for production and the use thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA818889B (en) | 1983-03-30 |
| ES8301297A1 (en) | 1982-12-01 |
| ES508331A0 (en) | 1982-12-01 |
| JPS6317148B2 (en) | 1988-04-12 |
| DE3049037C2 (en) | 1984-05-03 |
| DE3049037A1 (en) | 1982-07-22 |
| EP0054610A1 (en) | 1982-06-30 |
| EP0054610B1 (en) | 1984-07-04 |
| AR229251A1 (en) | 1983-07-15 |
| DE3164567D1 (en) | 1984-08-09 |
| JPS57128248A (en) | 1982-08-09 |
| ATE8281T1 (en) | 1984-07-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5569348A (en) | Method for the raster-pattern coating of fabrics with hot melt adhesive | |
| CA1090053A (en) | Heat transfer sheets | |
| RU2169804C2 (en) | Method of manufacturing hot-adhesive lining material | |
| CA1182068A (en) | Process for simultaneous and continuous consolidation and coating of a non-woven textile | |
| US4705584A (en) | Application of polymeric materials to substrates | |
| US4340632A (en) | Manufacture of flock transfers | |
| AU651532B2 (en) | Method for production of thermoadhesive fabric coverings thermoadhesive fabric covering | |
| US3383263A (en) | Method for preparing fabric laminate | |
| US4055688A (en) | Method and apparatus for applying synthetic resin powder in a grate-shaped coating to web material | |
| US4748044A (en) | Method for the simultaneous, continuous binding and coating of a nonwoven fabric | |
| Joshi et al. | Application technologies for coating, lamination and finishing of technical textiles | |
| CA1182067A (en) | Process for simultaneous consolidation and coating of a non-woven textile | |
| EP0455849A1 (en) | Method and apparatus for transfer of a colour design to a plastic substrate or a decorated plastic substrate | |
| CA1225962A (en) | Method of providing a surface effect in a release coating and a release paper product | |
| EP0943726A1 (en) | Process for the production of artificial leather | |
| RU2104158C1 (en) | Heat-activated adhesive lining material, integrated heat-activated adhesive drapery material, and method of preparing such material | |
| RU2172758C2 (en) | Method of preparing thermoadhesive lining material | |
| RU97104182A (en) | METHOD FOR PRODUCING THERMAL ADHESIVE UNDERGROUND MATERIAL | |
| US5895705A (en) | Awning and backlit sign fabric having a selectively eradicable ink layer and a process for producing same | |
| CN1279313A (en) | Process for preparing synthetic polyurethane leather | |
| KR20010011731A (en) | Process for producing polyurethane synthetic leather | |
| EP0544925B1 (en) | Process and apparatus for applying and incorporating dyes into a plastic-bearing substrate | |
| JPS6385183A (en) | Production of moire like pattern superposed cloth | |
| KR920008581B1 (en) | Process for embossing the fabrics using the ultrared rays | |
| KR100435025B1 (en) | Soluble clothing wick and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |