DE2148881A1 - Synthetic leather mfr - esp from mixed polymer/cellulose fleece compacted to achieve max strength with min piercing - Google Patents

Synthetic leather mfr - esp from mixed polymer/cellulose fleece compacted to achieve max strength with min piercing

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Publication number
DE2148881A1
DE2148881A1 DE19712148881 DE2148881A DE2148881A1 DE 2148881 A1 DE2148881 A1 DE 2148881A1 DE 19712148881 DE19712148881 DE 19712148881 DE 2148881 A DE2148881 A DE 2148881A DE 2148881 A1 DE2148881 A1 DE 2148881A1
Authority
DE
Germany
Prior art keywords
fleece
approx
compacted
piercing
synthetic leather
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.)
Pending
Application number
DE19712148881
Other languages
German (de)
Inventor
Klaus Sievers
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19712148881 priority Critical patent/DE2148881A1/en
Priority to DE19722228046 priority patent/DE2228046A1/en
Publication of DE2148881A1 publication Critical patent/DE2148881A1/en
Pending legal-status Critical Current

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
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • 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
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • 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
    • D04H1/44—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • 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
    • D04H1/44—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/48—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
    • D04H1/488—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation in combination with bonding agents
    • 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
    • D04H1/645—Impregnation followed by a solidification process
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, 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
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

High-grade synthetic leather is produced from a mixed polymer/cellulose fibrous fleece (e.g. polyamide or polypropylene fibres with cellulose fibres) by piercing the fleece to compact it with approx. 15-25 punctures per cm2. The material is then passed through a bath contg. a hot fluid, e.g. H2O, glycol, glycerine, etc., and through rollers which have a lower surface temp. than the bath to squeeze and compress it. It is then smoothed, impregnated and coated, e.g. with polyurethane, without the need for intermediate drying.

Description

Verfahren zur Herstellung von Material für Schuhe, Bekleidung und ähnliche Artikel Bei hochwertigem Syntheseleder, an das hohe anforderungen in bezug auf Festigkeit, Dehnung, wasserdampf-Durchlässigkeit, Wasserspeichumgsvermögen und andere Eigenschaften gestellt werden und welches als Trägermaterial ein Faservlies besitzt, ist es wichtig, daß das Rohvlies vor dem Imprägnieren eine große Faserdichte aufweist.Process for the manufacture of material for shoes, clothing and Similar articles In the case of high-quality synthetic leather, the high demands on it on strength, elongation, water vapor permeability, water storage capacity and other properties are provided and which is a non-woven fabric as a carrier material it is important that the raw fleece has a high fiber density before impregnation having.

Dieses erzielt man bis jetzt dadurch, daß das lose Material zunächst sehr stark genadelt wird. Einstichzahlen von 400-600 pro m2 sind üblich.This has been achieved up to now by the fact that the loose material initially is needled very hard. Piercing numbers of 400-600 per m2 are common.

Zur weiteren Verdichtung wird dann ein Flächenschrumpf von ca. 50-60 % vorgenommen. Hieran schließen sich, jeweils nach einer vollen Zwischentrocknung, Imprägnierung und Beschichtung an.For further compaction, an area shrinkage of approx. 50-60 is then required % performed. This is followed, each time after a full intermediate drying, Impregnation and coating.

Um die Anlagenkosten ganz wesentlich zu senken, um Bedienungapersonal zu aparen und billigeres Rohmateriel verwenden zu können, wird erfindungagamäß nachstehendes Verfahren vorgeschlagen: Das lose Faservlies, welches der Vliesbildner 1 erzeugt, wird mit der Nadelmaschine 2 ganz leicht vernadelt, um es transportfähig zu machen.In order to reduce the system costs quite significantly, to reduce the number of operating staff To be able to use spare and cheaper raw material, according to the invention, the following Method proposed: The loose fiber fleece, which the fleece former 1 produces, is very easily needled with the needle machine 2 to make it transportable.

Es genügen ca. 15-20 Einstiche pro cm2 anstatt der biaher üblichen 400-600 Einstiche. Hierdurch wird eine große Anzahl von Nadelmaschinen eingespart.Approx. 15-20 punctures per cm2 are sufficient instead of the usual ones 400-600 punctures. This saves a large number of needling machines.

Dann wird die Ware ia ein Bad 3 sit einer heißen Flüssigkeit geführt, um sie für das Verdichten vorzubersiten.Then the goods are in general a bath 3 sit with a hot liquid, to prepare them for compaction.

Diese heigße Flüsaigkeit kann entweder wasser mit einer Temperatur von 90-100° C sein oder Glyzerin, Gly@ol usw. mit höheren Temperaturen @on 120-180° C.This hot liquid can either be water with a temperature from 90-100 ° C or glycerine, Gly @ ol etc. with higher temperatures @on 120-180 ° C.

Anschließend erfolgt das Verdichten des erwärmten Vlieses durch das walzenpaar 4. Die walzen besitzen eine Temperatur, die unterhalb der Flüssigkeitstemperatur liegt. In einigen Fällen, z. ß. bei Verwendung von Zellwolle als Hauptfaser-Bestandteil, können sie gekühlt werden.The heated fleece is then compacted by the roller pair 4. The rollers have a temperature below the liquid temperature lies. In some cases, e.g. ß. when using rayon as the main fiber component, can they be cooled.

Die Ware hat in diesem Stadium ein spez. Gewicht von ca. 0,15-0,25 g/cm3.At this stage the goods have a spec. Weight of about 0.15-0.25 g / cm3.

(Trocken-Zustand). Dieses wurde mit geringem maschinellen Ayufwand und des Einsatz billiger nicht schrumpfender Fasern wie z.B. Polyamid oder Zellwolle erreicht.(Dry state). This was done with little mechanical effort and the use of cheap, non-shrinking fibers such as polyamide or rayon achieved.

Nun erfolgt ohne Zwischentrocknung oder mit nur ganz geringer Zwis¢hentrocknung die Iprägnierung des Materials auf der Anlage 5, um die Fasern zu binden.This now takes place without intermediate drying or with only very little intermediate drying the impregnation of the material on the plant 5 in order to bind the fibers.

Wenn die Chemikalien es verlangen, wie z. ß. synthetischer Latex, so erfolgt noch eine Thermokoagulation und ein Auswascheh der Emulgatoren.When the chemicals demand it, such as ß. synthetic latex, thermocoagulation takes place and the emulsifiers are washed out.

Jetzt erfolgt die Glättung der Ware auf dem Zylinder 6, der beheizt sein kann, um eine sehr leichte Vortrocknung zu erzielen.The goods are now smoothed on the cylinder 6, which is heated can be to achieve a very light pre-drying.

Auf dem Aggregat 7 wird die Ware z. ß. mit Polyurethan beschichtet.On the unit 7, the goods are z. ß. coated with polyurethane.

Wenn erforderlich, wird mit Wasser koaguliert und ausgawaschen.If necessary, it is coagulated with water and washed out.

Dann erfolgt mit dem Trockner 8 die Endtrocknung, die einzige Volltrocknung des ganzen Prozesses. Bei allen Prozessen wird Naß in Naß gearbeitet.The final drying then takes place with the dryer 8, the only complete drying the whole process. All processes work wet in wet.

Zur Durchfilhrung des geschilderten Verfahrens eignen sich besonders folgende Fasermischungen: 1. ca. 85 « Zellwolle 1,5 - 2,75 dtex 40 lang ca. 15 % Mischpolymerisat-Fasern 2. ca. 80 « Polyauid-Fasern ca. 15 % Polyprop. -Fasern ca. 5 « Zellwoll-Fasern 3. ca. 95 % Polyamid-Fasern mit ca. 4-5 % Spezial-Avivage ca. 5 X Zellwoll-Fasern.They are particularly suitable for carrying out the process described the following fiber blends: 1. approx. 85 «rayon 1.5 - 2.75 dtex 40 long approx. 15% Mixed polymer fibers 2. approx. 80% polyamide fibers approx. 15% polyprop. -Fibers approx. 5 «cellulose fibers 3. approx. 95% polyamide fibers with approx. 4-5% special finish approx. 5 x rayon fibers.

Diese Mischungen ergeben nach der Walzenpaar 4 ein hohes spez. Gewicht des Materials (gemessen in trockener Zustand - 0,13 - 0,20 g/cm3 oder höher -Bei den bekannten Verfahren wird durch das starke Nadeln ein großer Teil der Fasern zerstört und dadurch die Festigkeit herabgesetzt.These mixtures result in a high spec after the pair of rollers 4. weight of the material (measured in the dry state - 0.13 - 0.20 g / cm3 or higher - at In the known processes, a large part of the fibers is removed by the strong needling destroyed and thereby reduced the strength.

Dieser Nachteil entfällt bei dem vorgeschlagenen Verfahren, da fast nicht genadelt wird.This disadvantage does not apply to the proposed method, since almost is not needled.

Claims (5)

Patent-AnsprüchePatent claims 1. Verfahren zur Herstellung von Material für Schuhe, Bekleidung und ähnliche Artikel, dadurch gekennzeichnet, daß ein vom Vliesbildner erzeugtes Faservlies mit ca. 15 - 25 Einstichen pro cm2 genadelt wird, durch ein Bad sit heißer Flüssigkeit geführt, mit Walzen, die eine geringere Oberflächentemperatur haben als das Bad, abgequetsoht und verdichtet, geglättet, inprägniert und beschichtet wird, ohne daß eine Zwischentrocknung erfolgt.1. Process for the manufacture of material for shoes, clothing and Similar articles, characterized in that a fiber fleece produced by the fleece former needling with approx. 15 - 25 punctures per cm2 through a bath of hot liquid guided, with rollers that have a lower surface temperature than the bath, is squeezed and compacted, smoothed, impregnated and coated without intermediate drying takes place. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß nach der Heiß-Flüssigkeitsbehandlung und des Verdichten, den Inprägnieren und Glätten jeweils eine Teil-Zwischentrocknung erfolgt, welche Feuchtigeeitegrade von 40-60 % erzeugt. 2. The method according to claim 1, characterized in that according to the Hot liquid treatment and densification, impregnation and smoothing, respectively a partial intermediate drying takes place, which generates moisture levels of 40-60%. 3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Faservlies eine Fauerkomponente enthält, welche bei der Temperatur der Flüssigkeitsbehandlung und des Nachpressen das Vlies so verklebt, daß es in trockenen Zustand ein spez. Gewicht von ca. 0,13 - 0,20 g/co3 oder größer hat. 3. The method according to claim 1 or 2, characterized in that the fiber fleece contains a faucet component, which at the temperature of the liquid treatment and after pressing the fleece glued so that it has a spec in the dry state. Has a weight of approx. 0.13-0.20 g / co3 or greater. 4. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Fasern des Vlieses eine Avivage erhalten, die bei der Temperatur der Flüssigkeitsbehandlung und des Nachpressen das Vlies so verklebt, daß es in trockenen Zustand ein spez. Gewicht von ca. 0,13 - 0,20 g/cm3 oder großer hat. 4. The method according to claim 1 or 2, characterized in that the fibers of the fleece are given a finish that is effective at the temperature of the liquid treatment and after pressing the fleece glued so that it has a spec in the dry state. Has a weight of approx. 0.13-0.20 g / cm3 or greater. 5. Verfahren nach Anspruch 1 oder 2, sowie 3 oder 4, dadurch gekennzeichnet, daß als Haupt-Faserkosponente Zellwolle verwendet wird. 5. The method according to claim 1 or 2, and 3 or 4, characterized in that that viscose wool is used as the main fiber component. L e e r s e i t eL e r s e i t e
DE19712148881 1971-09-30 1971-09-30 Synthetic leather mfr - esp from mixed polymer/cellulose fleece compacted to achieve max strength with min piercing Pending DE2148881A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19712148881 DE2148881A1 (en) 1971-09-30 1971-09-30 Synthetic leather mfr - esp from mixed polymer/cellulose fleece compacted to achieve max strength with min piercing
DE19722228046 DE2228046A1 (en) 1971-09-30 1972-06-09 Needled fibre felt - with chalk added to the polyurethane latex or plastic bonding agent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712148881 DE2148881A1 (en) 1971-09-30 1971-09-30 Synthetic leather mfr - esp from mixed polymer/cellulose fleece compacted to achieve max strength with min piercing

Publications (1)

Publication Number Publication Date
DE2148881A1 true DE2148881A1 (en) 1973-04-12

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Application Number Title Priority Date Filing Date
DE19712148881 Pending DE2148881A1 (en) 1971-09-30 1971-09-30 Synthetic leather mfr - esp from mixed polymer/cellulose fleece compacted to achieve max strength with min piercing

Country Status (1)

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DE (1) DE2148881A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2567548A1 (en) * 1984-07-14 1986-01-17 Freudenberg Carl REFLECTED VELVET SYNTHETIC LEATHER AND PROCESS FOR PRODUCING THE SAME

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2567548A1 (en) * 1984-07-14 1986-01-17 Freudenberg Carl REFLECTED VELVET SYNTHETIC LEATHER AND PROCESS FOR PRODUCING THE SAME
DE3425989A1 (en) * 1984-07-14 1986-02-13 Fa. Carl Freudenberg, 6940 Weinheim SYNTHETIC VELOR SPLIT LEATHER AND METHOD FOR THE PRODUCTION THEREOF

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