EP0091622A2 - Procédé et appareillage pour la fabrication de non-tissés pour tapis - Google Patents

Procédé et appareillage pour la fabrication de non-tissés pour tapis Download PDF

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Publication number
EP0091622A2
EP0091622A2 EP83103217A EP83103217A EP0091622A2 EP 0091622 A2 EP0091622 A2 EP 0091622A2 EP 83103217 A EP83103217 A EP 83103217A EP 83103217 A EP83103217 A EP 83103217A EP 0091622 A2 EP0091622 A2 EP 0091622A2
Authority
EP
European Patent Office
Prior art keywords
roller
heavy layer
primer
isocyanate
heavy
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.)
Withdrawn
Application number
EP83103217A
Other languages
German (de)
English (en)
Other versions
EP0091622A3 (fr
Inventor
Klaus Dipl.-Chem. Lukoschek
Manfred Schweizer
Hans Chr. Ing. Grad. Trautmann
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.)
Chemiegesellschaft Gundernhausen mbH
Original Assignee
Chemiegesellschaft Gundernhausen mbH
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 Chemiegesellschaft Gundernhausen mbH filed Critical Chemiegesellschaft Gundernhausen mbH
Publication of EP0091622A2 publication Critical patent/EP0091622A2/fr
Publication of EP0091622A3 publication Critical patent/EP0091622A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
    • D06N7/0063—Floor 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
    • D06N7/0071—Floor 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
    • D06N7/0078—Floor 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 applied as a hot melt
    • 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
    • D06N2203/00—Macromolecular materials of the coating layers
    • D06N2203/02—Natural macromolecular compounds or derivatives thereof
    • 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
    • D06N2203/00—Macromolecular materials of the coating layers
    • D06N2203/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N2203/042—Polyolefin (co)polymers
    • 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
    • D06N2203/00—Macromolecular materials of the coating layers
    • D06N2203/06—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N2203/068—Polyurethanes
    • 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
    • D06N2203/00—Macromolecular materials of the coating layers
    • D06N2203/08—Bituminous material, e.g. asphalt, tar, bitumen
    • 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
    • D06N2205/00—Condition, form or state of the materials
    • D06N2205/10—Particulate form, e.g. powder, granule
    • 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
    • D06N2205/00—Condition, form or state of the materials
    • D06N2205/20—Cured materials, e.g. vulcanised, cross-linked
    • 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
    • D06N2209/00—Properties of the materials
    • D06N2209/08—Properties of the materials having optical properties
    • D06N2209/0807—Coloured
    • D06N2209/0823—Coloured within the layer by addition of a colorant, e.g. pigments, dyes
    • 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
    • D06N2211/00—Specially adapted uses
    • D06N2211/06—Building materials
    • D06N2211/066—Floor coverings
    • 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
    • D06N2213/00—Others characteristics
    • D06N2213/06—Characteristics of the backing in carpets, rugs, synthetic lawn
    • D06N2213/065—Two back coatings one next to the other

Definitions

  • the present invention relates to a method and an apparatus for the production of carpet tiles, whereby the underside of a textile floor covering, e.g. a needle felt or a tufted product, first a primer and then a heavy layer is applied and the carpet web thus produced is punched into carpet tiles.
  • a textile floor covering e.g. a needle felt or a tufted product
  • a tufted fabric or needle felted fabric is generally provided on its underside with a back coating which consists of a heavy layer, for example of bitumen.
  • a back coating which consists of a heavy layer, for example of bitumen.
  • the textile fibers can easily detach from such tufted goods or needle felted goods, especially if the floor covering is subjected to external stress.
  • the primer this way of working prevailed, because until now this was the only way to produce a durable carpet tile that can withstand even greater stress.
  • Filled polyurethane was also used as the heavy layer.
  • a primer is not required.
  • the lying properties and dimensional stability of such carpet tiles are unsatisfactory, and polyurethane is also expensive.
  • hotmelt compositions based on atactic polypropylene or bitumen are used almost without exception as the heavy layer for carpet tiles, whereby the need for a separate primer is accepted.
  • the object of the present invention is to provide a method and a device for producing a carpet tile which is considerably simplified compared to previous production with primer and subsequent application of the hotmelt heavy layer and which offers the possibility of producing an inexpensive carpet sheet for tiles in one operation .
  • an activated isocyanate-polyol mixture which may be filled with fillers and does not react to polyurethane at temperatures near room temperature, is used as the primer, and a thermoplastic is used as the heavy layer, the primer and the heavy layer being in succession are applied to the carpet web on the same lower roller and the primer roller and the activated isocyanate-polyol mixture are kept at a temperature between the dew point of the water and a temperature at which there is still no reaction of the isocyanate and the polyol and the Heavy class and the heavy class Roller doctor blades are kept at a temperature at which the heavy layer has liquid properties and the activated isocyanate-polyol mixture reacts with one another to form polyurethane.
  • the liquid isocyanate-polyol mixture When using a pre-coat mixture of isocyanates, polyols and activators that do not react with each other at temperatures close to room temperature, the liquid isocyanate-polyol mixture first penetrates into the underside of the carpet web, so that the ends of the textile fibers are well soaked in the pre-coat mixture . This will be. favors that the flowability of the isocyanate-polyol mixture is fully maintained because the reaction does not take place, as a result of which the primer penetrates well into the fibers or knobs under the pressure of the primer roller.
  • the heavy layer can then be applied to the same lower roller immediately after the application of the primer.
  • the heavy layer consists of a thermoplastic that is applied to the underside of the carpet at elevated temperatures.
  • the temperature of the thermoplastic to be applied must be set so that, on the one hand, the required fluidity or viscosity is guaranteed, for example, to be able to be applied to the underside of the carpet web with a roller doctor blade, on the other hand, the temperature must be selected so that it is at room temperature not yet reactive isocyanate-polyol mixture under the influence of the elevated temperature of the heavy layer now reacts to form polyurethane.
  • This fin det simultaneously with the application of the heavy layer the curing of the primer takes place without the need for separate operations or separate bottom rollers for the application of the primer and heavy layer.
  • the method according to the invention enables high speeds in the production of the carpet webs, with only minor investments being required.
  • the fact that both layers, both the primer and the heavy layer, can be applied on a single lower roller means that no additional work step is required.
  • By selecting appropriate compositions for the primer and the heavy layer it is possible to set the flexural strength and the lying behavior of the carpet tile.
  • thermoplastics Compared to the use of polyurethanes as the coating material, the possibility of using cheaper thermoplastics as the heavy layer results in considerable cost savings with better lying properties.
  • the method according to the invention is suitable for the production of carpet tiles from all textile floor covering materials, such as e.g. Tufted goods, needle felted goods, woven goods or knitted goods.
  • thermoplastics are used for the heavy layer. These include atactic polypropylene, atactic polybutene, bitumen, ethylene-vinyl acetate polymers (EVA), polyvinyl acetate and the like. Natural rubber, polyethylene, polypropylene, polybutene, polyisobutylene, propylene rubber, ethylene-propylene rubbers (EPDM, EPM) and mixtures of the substances mentioned can also be used as additives to these thermoplastics will. Atactic polypropylene, atactic polybutene, bitumen and mixtures of atactic polypropylene and atactic polybutene, atactic polypropylene and polyethylene and of atactic polypropylene with resins are preferably used. Suitable resins are natural and / or synthetic resins, for example hydrocarbon resins. Aliphatic hydrocarbon resins or natural resins such as rosin or root resin are preferably used.
  • the heavy layer can be filled with the usual fillers and additives, e.g. Fillers with a density above 2, such as barium sulfate, calcium carbonate, silicon dioxide, slate powder, limestone powder, quartz sand, etc. Plasticizers, antioxidants, dyes, pigments, etc. can also be used as additives.
  • Fillers with a density above 2 such as barium sulfate, calcium carbonate, silicon dioxide, slate powder, limestone powder, quartz sand, etc.
  • Plasticizers, antioxidants, dyes, pigments, etc. can also be used as additives.
  • the heavy layer is applied at temperatures from 80 to 220 ° C., preferably 120 to 200 ° C. and particularly preferably at 150 to 180 ° C.
  • the application temperatures are about 150 to 180 ° C, when using high molecular weight atactic polypropylenes the temperatures can be between 120 and 220 ° C.
  • application temperatures are generally between about 120 and 180 ° C.
  • bitumen lower application temperatures are used, for example in the range from 80 to 180 ° C.
  • the application temperatures are at a high filler content, for example in the range from 50 to 80% by weight between about 160 and 200 ° C., and at a lower filler content below, for example 50% at about 140 to 160 ° C.
  • Suitable as a primer are all isocyanate-polyol mixtures that do not work at temperatures close to room temperature, i.e. do not react to any appreciable extent to form polyurethanes. These are, in particular, mixtures which cannot be converted to polyurethanes at temperatures between 0 and 100 ° C, preferably between 10 and 50 ° C and particularly preferably between 10 and 30 ° C, i.e. who do not yet react to any significant extent at these temperatures.
  • Such isocyanate-polyol mixtures contain, for example, di- or polyisocyanates, preferably aromatic diisocyanates, such as 4,4'-diphenylmethane diisocyanate (MDI) or tolylene diisocyanate (TDI) as the isocyanate component.
  • di- or polyisocyanates preferably aromatic diisocyanates, such as 4,4'-diphenylmethane diisocyanate (MDI) or tolylene diisocyanate (TDI) as the isocyanate component.
  • aromatic diisocyanates such as 4,4'-diphenylmethane diisocyanate (MDI) or tolylene diisocyanate (TDI) as the isocyanate component.
  • MDI 4,4'-diphenylmethane diisocyanate
  • TDI tolylene diisocyanate
  • polyether and / or polyester diols or triols or di- and / or trifunctional polyether and polyester polyols.
  • monohydric or polyhydric alcohols for example glycol, glycerin, etc., may be present.
  • activators which only allow the mixture to react with one another at higher temperatures.
  • activators are, for example, thermally activatable amine catalysts, which can consist of salts of amines with organic carboxylic acids or of complex-bound amines. At elevated temperatures, these substances disintegrate, releasing the amine that serves as an activator.
  • Metal salts or organometallic compounds can also be used as thermally activatable activators.
  • An example of such compounds is nickel (II) acetyl acetonate.
  • the activators can, for example, be mixed with the polyol component and added to the reaction mixture.
  • the mixture of isocyanate, polyol and activator can optionally contain the same fillers as the heavy layer.
  • Fig. 1 shows a device for performing the method according to the invention in a schematic representation.
  • a tufted carpet web 12 consisting of a polyamide material and a polypropylene carrier fabric, is transported from the unwinding device 10 via the deflection rollers 14 to the lower roller 22.
  • reaction component 4,4'-diphenylmethane diisocyanate (isocyanate content as NCO> 30% by weight) (MDI) is in the storage container 16 and the corresponding second reaction component, consisting of, is in the storage container 18
  • both reaction components isocyanate and polyol mixture are premixed in a ratio of 1: 7.8 and applied to the carpet web via a primer roller 24.
  • the order quantity is predosed with the help of the doctor blade 26.
  • the temperatures of the polyurethane reaction components as well as of the reaction mixture, the pre-wipe roll and the lower roll be + 15 0 C.
  • the coating weight of the primer is 35 0 g / m 2.
  • the precoated carpet web is fed to the heavy-layer roller doctor 30 on the lower roller 22, which rotates in the running direction.
  • a hotmelt heavy coating composition consisting of
  • this mass is 170 ° C. With the aid of the heavy-duty roller blade 30, which is also heated to 180 ° C., this mass is applied from the storage container to the pre-coated carpet web, the application weight is 2,000 g / m 2 .
  • the reaction of the activated isocyanate-polyol primer mixture to polyurethane is initiated by the action of the elevated temperature of the coating of the carpet web with the hot heavy coating composition.
  • the carpet web is transported over a cooling section 32/34 and cooled to 20 ° C. With the cooling, the reaction of the isocyanate-polyol mixture is completed, so that the carpet web can be punched with the punch 36 into carpet tiles.
  • the carpet tiles produced in this way show a very good integration of the fiber filaments through the polyurethane primer and a very good dimensional stability.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Carpets (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
EP83103217A 1982-04-10 1983-03-31 Procédé et appareillage pour la fabrication de non-tissés pour tapis Withdrawn EP0091622A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3213439 1982-04-10
DE19823213439 DE3213439A1 (de) 1982-04-10 1982-04-10 Verfahren und vorrichtung zur herstellung von teppichfliesen

Publications (2)

Publication Number Publication Date
EP0091622A2 true EP0091622A2 (fr) 1983-10-19
EP0091622A3 EP0091622A3 (fr) 1984-07-25

Family

ID=6160730

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83103217A Withdrawn EP0091622A3 (fr) 1982-04-10 1983-03-31 Procédé et appareillage pour la fabrication de non-tissés pour tapis

Country Status (3)

Country Link
US (1) US4474836A (fr)
EP (1) EP0091622A3 (fr)
DE (1) DE3213439A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3436751C2 (de) * 1984-10-06 1987-04-02 Philipp 3000 Hannover Schaefer Vorrichtung zum Zurichten von Spaltleder
DE3510932C2 (de) * 1985-03-26 1987-04-02 Dr. Alois Stankiewicz GmbH, 3101 Adelheidsdorf Adhäsives zerstörungsfrei entfernbares Isolationssystem
DE19623622A1 (de) * 1996-06-13 1997-12-18 Voith Sulzer Papiermasch Gmbh Verfahren und Vorrichtung zur Beschichtung einer laufenden Materialbahn
US20050004245A1 (en) * 2003-07-03 2005-01-06 Glen Hamrick Polyurethane coating process and padding
US20050025930A1 (en) * 2003-07-30 2005-02-03 Glen Hamrick Carpet manufactured with polyurethane coating process and having integral padding
US7638008B2 (en) * 2004-05-25 2009-12-29 New Spirit Backing Llc Polyurethane roller coating process for carpet backing
WO2005115727A2 (fr) 2004-05-25 2005-12-08 Eduard Küsters Maschinenfabrik GmbH & Co. KG Dispositif de revetement a rouleau de polyurethanne pour sous-couche
US7834123B2 (en) * 2006-05-19 2010-11-16 Henkel Ag & Co. Kgaa Two component polyurethane adhesive
JP5684820B2 (ja) 2009-10-30 2015-03-18 ヘンケル・アクチェンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフト・アウフ・アクチェンＨｅｎｋｅｌ ＡＧ ＆ Ｃｏ．ＫＧａＡ 経時的変性相を備える水分硬化組成物
DE102011002809A1 (de) 2011-01-18 2012-07-19 Henkel Ag & Co. Kgaa 2K-PU-Zusammensetzung mit verzögerter Vernetzung
DE102011007504A1 (de) 2011-04-15 2012-10-18 Henkel Ag & Co. Kgaa PU-Zusammensetzungen mit komplexierten Katalysatoren

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891785A (en) * 1973-03-20 1975-06-24 Usm Corp Process for forming a flexible polyurethane coating
GB1552626A (en) * 1975-06-06 1979-09-19 Ici Ltd Bakc coated floor covering

Also Published As

Publication number Publication date
DE3213439A1 (de) 1983-10-20
US4474836A (en) 1984-10-02
EP0091622A3 (fr) 1984-07-25

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Inventor name: SCHWEIZER, MANFRED

Inventor name: TRAUTMANN, HANS CHR., ING. GRAD.

Inventor name: LUKOSCHEK, KLAUS, DIPL.-CHEM.