EP0054628A1 - Procédé pour consolider et enduire simultanément et en continu une nappe de fibres - Google Patents

Procédé pour consolider et enduire simultanément et en continu une nappe de fibres Download PDF

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Publication number
EP0054628A1
EP0054628A1 EP81107604A EP81107604A EP0054628A1 EP 0054628 A1 EP0054628 A1 EP 0054628A1 EP 81107604 A EP81107604 A EP 81107604A EP 81107604 A EP81107604 A EP 81107604A EP 0054628 A1 EP0054628 A1 EP 0054628A1
Authority
EP
European Patent Office
Prior art keywords
binder
adhesive
nonwoven
printed
adhesive composition
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.)
Granted
Application number
EP81107604A
Other languages
German (de)
English (en)
Other versions
EP0054628B1 (fr
Inventor
Walter Dr. Föttinger
Sepp Dr. Wagner
Bohuslav Tecl
Werner Enders
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carl Freudenberg KG
Original Assignee
Carl Freudenberg KG
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
Application filed by Carl Freudenberg KG filed Critical Carl Freudenberg KG
Publication of EP0054628A1 publication Critical patent/EP0054628A1/fr
Application granted granted Critical
Publication of EP0054628B1 publication Critical patent/EP0054628B1/fr
Expired legal-status Critical Current

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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
    • D04H1/58—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
    • 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
    • D04H1/60—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 dry state, e.g. thermo-activatable agents in solid or molten state, and heat being applied subsequently
    • D04H1/62—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 dry state, e.g. thermo-activatable agents in solid or molten state, and heat being applied subsequently 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

Definitions

  • the invention relates to a process of simultaneous, continuous solidification and coating of a nonwoven with a binder and with an adhesive, in which the binder was synchronous from one side and the adhesive mass printed on the other side is counter-pressed in partial areas covering it, with dif Partial areas have a distance from each other.
  • Binders primarily serve to bond the fibers of a nonwoven fabric to one another and thereby give it strength. The more fibers are glued together, the greater the strength. It is therefore desirable that the binder penetrate into the interior of the treated nonwoven and, after it has solidified, be distributed as evenly as possible over the entire cross section.
  • Crosslinkable polymeric substances in particular are used as binders for practical use.
  • the adhesive compositions applied to the surface of fixing inserts serve to enable bonding with another substance.
  • Common adhesive compositions are thermoplastic substances, and the activation is effected by applying pressure and heat, for example with the aid of an iron.
  • the binder it is therefore desirable that the adhesive does not penetrate into the interior of the nonwoven used, even when ironing, but is available as completely and concentrated as possible for the mutual bonding of the superimposed surfaces.
  • the method mentioned at the beginning makes it possible to apply the binder and the adhesive composition congruently to the top and to the bottom of the nonwoven used. Due to the identical printing process used in the treatment of the top and the bottom, however, the same press-in forces result, and it is therefore extremely difficult to obtain the to achieve the desired different press-in of binder and adhesive. A mutual modification of the size of the applied partial areas is not possible and higher printing speeds can lead to an unclean print image and thus to undefined properties of the fixing insert obtained, especially when treating non-pre-consolidated nonwovens.
  • the invention has for its object to develop the method mentioned in such a way that a simultaneous, continuous printing of a binder and an adhesive on an unconsolidated nonwoven fabric in the form of partial areas with a congruent center line ensures a precise print image on both sides and that makes it possible to vary the specific order quantity on both sides as well as the mutual injection.
  • a binder which can be crosslinked by UV rays is printed from the underside against a thermoplastic adhesive composition applied to the top of the nonwoven fabric by the powder dot or screen printing method.
  • the binder is then crosslinked by UV rays, the dose being chosen so that there is at the same time a geometric inherent stabilization of the shape of the adhesive mass surfaces results, which is sufficient in terms of preventing a divergence and thus of impurities in the printed image during the top guide and the subsequent finishing treatment in a sintering channel or a dryer.
  • the UV radiation is operated with excess energy.
  • This excess energy which expediently accounts for more than half of the electrical energy used, is used according to the invention to glue the partial surfaces of the nonwoven fabric containing reliefs above the binder, essentially from adhesive surface particles, to one another or to the surface of the nonwoven fabric that a change in the geometric shape and in particular a divergence during the transfer into the subsequent dryer or into the subsequent tempering chamber is prevented.
  • the electrical or radiation energy used ensures complete crosslinking of the binder pressed into the nonwoven fabric within the partial areas while at the same time stabilizing the partial adhesive surfaces.
  • a particularly favorable ratio between UV and heat radiation is given with medium and high pressure mercury lamps, if these are directed against the surface of the printed nonwoven fabric from both sides without the use of special filters and / or special cooling.
  • the use of an upper dose of the energy distribution claimed is generally not disadvantageous, but rather favors a high degree of contour sharpness of the print image obtained on both sides at the highest working speeds. It is an advantage to be emphasized that this is retained even if vibrations or shaking movements are transmitted to the fleece by external influences. Suppressing them is often extremely difficult in the process stage mentioned, it should also be taken into account that the nonwovens under discussion here have a basis weight range of lo to 50 g / m 2 and a working width of more than 1 m in many cases are already extremely sensitive to air vibrations.
  • the printing processes used for the application of the adhesive and the binder basically belong to different types, which means that the two substances, which are intended to perform different tasks, can be applied in a favorable mutual coordination. It is also essential that at least one of the two opposing printing cylinders has soft-elastic properties by means of which differences in thickness or elasticity of the printed nonwoven fabric are compensated for during the printing process to such an extent that a disturbance in the printed image produced is avoided.
  • the binder can be applied using a high, flat or gravure cylinder with a soft, elastic jacket made of rubber. In all three cases, the binder is pressed well into the interior of the nonwoven.
  • the high-pressure process also combines the further advantage of a particularly high elasticity of the surface with a good protection against soiling compared to fiber components detaching from the surface of the printed nonwoven fabric.
  • the specific amount of binder applied can be continuously changed by adjusting the printing device used. If a corresponding change is required when using an intaglio printing process, the use of a correspondingly modified printing roller is necessary.
  • Modified printing rollers are still required if the size of the partial areas is to be modified in the high, flat or gravure printing process.
  • Such a modification can, for example, consist of an increase in the diameter if it is to be prevented that the adhesive mass penetrates into the interior of the fixing insert when the fixing insert is ironed with an outer material having poor absorbency.
  • the adhesive can be printed on the nonwoven in dry form as a powder using the powder point method or in the form of a paste-like suspended powder using a screen printing method.
  • the powder dot process it is not necessary to subsequently remove the carrier liquid required for the use of the screen printing process, as a result of which the specific energy consumption is lower.
  • the amount of adhesive applied per unit area cannot be changed continuously by simply changing the angle of attack of the squeegee, as in the screen printing process, but a changed application roller is required.
  • the use of the powder dot process lends itself, while the screen printing process is preferred for the production of lower production rates of fixing inserts with specific adhesive force.
  • all relevant adhesive compositions can be processed, for example those based on polyolefin, polyurethanes, copolyamides or copolyesters.
  • the melting point is generally in the range between 100 and 130 ° C.
  • the particle size of the powder used must be relatively fine in order to enable adequate mutual pre-bonding using the excess energy from the UV crosslinking of the binder.
  • Good results are generally achieved if the maximum particle diameter is less than 0.1 mm in the powder dot process in at least 95% of all cases and less than 0.1 mm in the dispersion printing process in at least 95% of all cases.
  • the partial areas of binder and adhesive are printed with an overlapping center line in an identical surface pattern on the top and bottom of the nonwoven. They are of relatively fine design and, for example with a diameter of 0.4 to 0.7 mm, can have a mutual center-to-center distance of 1 mm.
  • the fibers used for the production of such fixation inserts have a length of at least 25 mm, and their mutual association follows an irregular pattern. It is assumed that all parameters are involved if distortions of the fleece during the treatment in the printing unit could not be observed.
  • a 25 g / m 2 heavy nonwoven fabric made of loo% polyester fibers 1.7 dtex / 4o mm is produced at a speed of 6o m / min.
  • the web is passed through a pair gegengender employee and heated at 15 0 0 C surface temperature of rollers, and thereby compacted with a linear pressure of 15 kp / cm.
  • the fleece is passed through a printing device according to FIG. 1.
  • the upper printing roller is a screen printing stencil 1 with a 25 mesh screen.
  • the hole diameter is uniformly 45 mm, the template thickness is 19 mm.
  • a squeegee 3 which is adjustable in the inclination to the vertical is arranged in the screen printing cylinder.
  • aqueous adhesive paste 2 is printed, the 40% by weight of a ternary copolyamide powder consisting of laurolactam, caprolactam and AH salt (based on adipic acid-hexamethylene diamine) with a maximum particle diameter of lo to 80 ⁇ and a melting point of 115 ° C contains and which is adjusted by adding an acrylate thickener with ammonia to a viscosity of 15 ooo m Pas sec.
  • the overlay on the fleece 4 is wet 30 g / m 2 , and after drying 12 g / m 2 .
  • the lower pressure roller 5, i.e. the second roller from above is designed as a rubber high-pressure roller.
  • the rubber is resistant to organic liquids and has a Shore A hardness of 65.
  • the division of the high-pressure pattern is absolutely identical to that of the screen printing cylinder, while the diameter of the printing surfaces is 0.8 mm.
  • the engraving depth is 0.4 mm.
  • the two pressure rollers are set so that the centers of the partial surfaces printed on both sides lie congruently one above the other.
  • the binder mixture has the following composition:
  • the fleece After leaving the printing unit, the fleece is transported with the help of a metal carrying belt through a light lock into an exposure box, where it is passed through 2 rows of high-pressure mercury lamps with an output of 2oo watts / cm - one row each from above and from below becomes.
  • the binder cures instantly.
  • the nonwoven fabric exits through a second light trap the exposure box and is then passed through a tenter frame 15 m long, in the circulating air at a temperature of 115 0 C, the adhesive mass is fully sintered dried and finished.
  • the material web is trimmed on both sides with the help of cutting units and divided in the middle, so that 2 webs of 9o cm wide, non-woven interlining can be rolled up.
  • the interlining nonwoven fabric obtained is very soft and drapable, excellent washable and dry-cleanable, and can be processed perfectly on all conventional fixing devices.
  • a cross-laid fleece is placed on a slatted table.
  • the basis weight of the nonwoven web running at this speed is 27 g / m 2 , the web width 195 cm.
  • the fiber mix consists of
  • the nonwoven fabric is passed through a pair of heated rollers as in Example 1.
  • the surface temperature of the rollers is 190 ° C
  • the line pressure is 30 kp / cm
  • the peripheral speed is 25 m / min.
  • the fleece is passed through a printing device according to FIG. 2.
  • the lower 3 rollers, including the prepolymer tub, are identical to those of Example 1, as are the composition of the prepolymer mixture and its temperature, and the roller heating of the transfer roller.
  • the top roller is designed as a powder point applicator roller 9.
  • the print pattern is designed as a 25 mesh row dot. Its division is absolutely identical to the 25-mesh grid of the high-pressure rubber roller 5 underneath, the printing surfaces also having a diameter of 0.8 mm with a likewise circular design. The depth of engraving of the cells is 0.25 mm, their diameter is 0.40 mm.
  • the powder roller is heated to a surface temperature of 68 ° C. 15 g / m 2 of a ternary copolyamide powder lo with a maximum particle diameter of 1 to 2oo u and a melting range of 12o to 130 ° C are thus applied.
  • the result is a particularly soft, multi-directional interlining fleece of high volume, good drapability, and excellent resistance to laundry and dry cleaning.
  • the circular partial surfaces made of binder have a larger diameter than the partial surfaces made of adhesive.
  • the adhesive that melts when the fixing inserts are thermofixed is thereby better prevented from penetrating into the fixing insert than if the partial surfaces lying one above the other have the same diameter.
  • the partial areas can be applied in any other desired area grid, for example also in the frequently preferred scatter grid with statistical orientation. In addition to round training, any other desired shape is possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Manufacturing Of Multi-Layer Textile Fabrics (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Nonwoven Fabrics (AREA)
  • Laminated Bodies (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Coloring (AREA)
EP81107604A 1980-12-24 1981-09-24 Procédé pour consolider et enduire simultanément et en continu une nappe de fibres Expired EP0054628B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3049036A DE3049036C2 (de) 1980-12-24 1980-12-24 Verfahren zum gleichzeitigen, kontinuierlichen Verfestigen und Beschichten eines Vliesstoffes
DE3049036 1980-12-24

Publications (2)

Publication Number Publication Date
EP0054628A1 true EP0054628A1 (fr) 1982-06-30
EP0054628B1 EP0054628B1 (fr) 1984-06-20

Family

ID=6120285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81107604A Expired EP0054628B1 (fr) 1980-12-24 1981-09-24 Procédé pour consolider et enduire simultanément et en continu une nappe de fibres

Country Status (8)

Country Link
EP (1) EP0054628B1 (fr)
JP (1) JPS57121662A (fr)
KR (1) KR870002106B1 (fr)
AR (1) AR227686A1 (fr)
CA (1) CA1182068A (fr)
DE (2) DE3049036C2 (fr)
ES (1) ES8301296A1 (fr)
ZA (1) ZA818888B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0153443A2 (fr) * 1984-02-09 1985-09-04 Firma Carl Freudenberg Triplure fine de fixation pour étoffes stratifiées ouatinées, et procédé pour la fabrication de telles étoffes stratifiées
US4709631A (en) * 1987-01-20 1987-12-01 Armstrong World Industries, Inc. Method of printing a raised pattern of liquid
US4747346A (en) * 1985-01-29 1988-05-31 Lantor B.V. Method of stencil printing a substrate with foam

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6183363A (ja) * 1984-09-25 1986-04-26 呉羽センイ株式会社 プリントタイプ自動車内装材
FR2576191B1 (fr) * 1985-01-23 1990-11-23 Picardie Lainiere Produit nouveau destine a etre colle a chaud par pression sur des articles plats et procede de fabrication d'un tel produit
JPH0214004A (ja) * 1988-06-29 1990-01-18 Kanai Hiroyuki 撥水性接着芯地の製造方法
DE4321155C2 (de) * 1993-06-25 2003-10-30 Procter & Gamble Flächiges, nicht-gewebtes Fasernlagenmaterial zum Einsatz in Hygieneartikeln
EP0775773A4 (fr) 1994-08-09 1998-08-26 Asahi Chemical Ind Tissu adhesif de rembourrage, son procede de fabrication et colle pour tissus adhesifs
US20040043212A1 (en) 2000-08-05 2004-03-04 Peter Grynaeus Thermal control nonwoven material
DE102005030484B4 (de) 2005-06-28 2007-11-15 Carl Freudenberg Kg Elastischer Vliesstoff, Verfahren zu dessen Herstellung und dessen Verwendung
DE102007062865B4 (de) * 2007-11-09 2009-10-15 Carl Freudenberg Kg Textiles fixierbares Flächengebilde
EP2207925B1 (fr) * 2007-11-09 2013-03-20 Carl Freudenberg KG Surface textile thermofixable
DE102009013028A1 (de) * 2009-03-16 2010-10-14 Carl Freudenberg Kg Vliesstoff und Verfahren zu seiner Herstellung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3120449A (en) * 1961-04-05 1964-02-04 Johnson & Johnson Fibrous materials and methods of making the same
FR2104775A2 (fr) * 1969-10-30 1972-04-21 Stork Amsterdam

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1912773A1 (de) * 1969-03-13 1970-10-01 Freudenberg Carl Fa Vorrichtung zum Aufbringen oertlich begrenzter Bindemittelmengen auf Bahnen
JPS5028094B2 (fr) * 1971-08-14 1975-09-12
JPS4981659A (fr) * 1972-12-13 1974-08-06
JPS565574B2 (fr) * 1973-05-07 1981-02-05
JPS5042171A (fr) * 1973-08-22 1975-04-17
JPS5361768A (en) * 1976-11-12 1978-06-02 Kanai Hiroyuki Nonnwoven core fabric for iron adhering
DE2862131D1 (en) * 1978-12-21 1983-01-20 Freudenberg Carl Fa Process for bonding non-woven fabrics
DE2914617C2 (de) * 1979-04-11 1982-06-03 Fa. Carl Freudenberg, 6940 Weinheim Verfahren und Vorrichtung zum gleichzeitigen, kontinuierlichen Aufbringen von Pasten auf einander gegenüberliegende Oberflächenzonen der Vorder- und Rückseite eines flexiblen, porösen Flächengebildes

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3120449A (en) * 1961-04-05 1964-02-04 Johnson & Johnson Fibrous materials and methods of making the same
FR2104775A2 (fr) * 1969-10-30 1972-04-21 Stork Amsterdam

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0153443A2 (fr) * 1984-02-09 1985-09-04 Firma Carl Freudenberg Triplure fine de fixation pour étoffes stratifiées ouatinées, et procédé pour la fabrication de telles étoffes stratifiées
EP0153443A3 (en) * 1984-02-09 1988-10-12 Firma Carl Freudenberg Thin fastening interlining for fabric-wadding laminates and method for making such laminates
US4747346A (en) * 1985-01-29 1988-05-31 Lantor B.V. Method of stencil printing a substrate with foam
US4709631A (en) * 1987-01-20 1987-12-01 Armstrong World Industries, Inc. Method of printing a raised pattern of liquid

Also Published As

Publication number Publication date
DE3049036A1 (de) 1982-07-22
ES508330A0 (es) 1982-12-01
EP0054628B1 (fr) 1984-06-20
JPS6317147B2 (fr) 1988-04-12
JPS57121662A (en) 1982-07-29
AR227686A1 (es) 1982-11-30
DE3164322D1 (en) 1984-07-26
KR870002106B1 (ko) 1987-12-08
ES8301296A1 (es) 1982-12-01
KR830007946A (ko) 1983-11-09
ZA818888B (en) 1983-07-27
CA1182068A (fr) 1985-02-05
DE3049036C2 (de) 1984-09-13

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