EP0184596B2 - Procédé d'impression d'un substrat - Google Patents

Procédé d'impression d'un substrat Download PDF

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Publication number
EP0184596B2
EP0184596B2 EP84201823A EP84201823A EP0184596B2 EP 0184596 B2 EP0184596 B2 EP 0184596B2 EP 84201823 A EP84201823 A EP 84201823A EP 84201823 A EP84201823 A EP 84201823A EP 0184596 B2 EP0184596 B2 EP 0184596B2
Authority
EP
European Patent Office
Prior art keywords
foam
substrate
printing
printed
screen
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 - Lifetime
Application number
EP84201823A
Other languages
German (de)
English (en)
Other versions
EP0184596A1 (fr
EP0184596B1 (fr
Inventor
Adam Paul Geel
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.)
Lantor BV
Original Assignee
Lantor BV
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26157687&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0184596(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from NL8302296A external-priority patent/NL190934C/xx
Priority to FI844637A priority Critical patent/FI79355C/fi
Priority claimed from FI844637A external-priority patent/FI79355C/fi
Priority to DE8484201823T priority patent/DE3478233D1/de
Priority to AT84201823T priority patent/ATE43144T1/de
Application filed by Lantor BV filed Critical Lantor BV
Publication of EP0184596A1 publication Critical patent/EP0184596A1/fr
Publication of EP0184596B1 publication Critical patent/EP0184596B1/fr
Application granted granted Critical
Publication of EP0184596B2 publication Critical patent/EP0184596B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D06M23/04—Processes in which the treating agent is applied in the form of a foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/12—Stencil printing; Silk-screen printing
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B19/00—Treatment of textile materials by liquids, gases or vapours, not provided for in groups D06B1/00 - D06B17/00
    • D06B19/0088—Treatment of textile materials by liquids, gases or vapours, not provided for in groups D06B1/00 - D06B17/00 using a short bath ratio liquor
    • D06B19/0094—Treatment of textile materials by liquids, gases or vapours, not provided for in groups D06B1/00 - D06B17/00 using a short bath ratio liquor as a foam

Definitions

  • This invention relates to a method of printing a non-woven fibrous web with a viscous mass in the form of a foam using a screen printing machine.
  • the present invention is thus concerned with a process as defined in claim 1.
  • This process is extremely suitable to carry out the printing in a specific pattern in the non-woven fibrous web.
  • the foam will inevitably be subjected to high shearing forces, a small proportion of the foam cells will lose their original structure and burst. This will generally not be in excess of 10-15% of the cells.
  • the foam When ejected from the screen, the foam is clearly deposited in the fleece material as an extrusion pillar.
  • all sorts of material effects can be achieved in the final product; not only in decorative respect, but also structurally.
  • This opens up the constructive route to new types of fibrous webs.
  • the desired combination of properties can be supported by a suitable material selection of binder type, fiber mixture and web structure.
  • the technique of pattern printing by means of dimensionally stable foam compositions opens up the possibility of introducing new structures by:
  • the composition of the dimensionally stable foam does not involve any novel particular aspects: the high foam stability can be achieved by using features long since known to the art.
  • a suitable surfactant one may provide for a high viscosity, for the addition of foam stabilizers or anti-desiccants, for the use of low-molecular emulsifiers, and for the use of a high dry content.
  • the dry content is at least 20%. The higher the content of dry matter, the faster the binder will coagulate upon forced drying, as a result of which the foam structure is maintained.
  • composition of matter from which the foam is prepared usually comprises an aqueous dispersion, although it is quite possible to use other solvents or dispersing agents, such as ethylacetate.
  • aqueous dispersion usually comprises water, although it is quite possible to use other solvents or dispersing agents, such as ethylacetate.
  • water is used as this presents little or no environmental problems.
  • binder itself is liquid as can be the case with e.g. epoxy-systems or liquidized, reactive waterfree systems, it is also possible to dispense with the solvent.
  • the physical fineness is the physical fineness.
  • the average diameter of the foam bubbles should be less than half the average fiber interspace in the web.
  • the suitability of the foam for the printing process on the rotation-screen machine can be evaluated in various ways. Thus, for example, use can be made of a laboratory high-speed mixer to beat foam to a certain fineness to be expressed in the density in g/l. The higher the density, the coarser the foam bubbles are. The advantageously used values range between 50 and 300 g/l.
  • metal-stable foam as used in this connection means a foam which satisfies the following test.
  • a volume of 1 l of foam is separated in a measuring cylinder covered, and allowed to stand at 20°C for 24 hours. Evaluation is then effected by measuring the amount of liquid settled.
  • a foam suitable for use in the dimensionally stable foam paste will exhibit no settled liquid after 24 hours. Such a foam is considered meta-staple.
  • Suitable "non-wovens” are especially fibrous webs made from natural fibers, and fibers of synthetic plastics material, but also fibers of glass, carbon and asbestos.
  • Printing can be effected with all sorts of substances, depending on the final product contemplated. It is not necessary for printing to be effected in a design. It is possible to print the entire surface. Some examples of applications are the binding of a fibrous web, printing a fibrous web in a pattern with a decorative character, decoratively binding a needled web, rendering a substrate water-repellent, or, on the other hand, applying a water-absorbing layer.
  • the meta-stable foam is prepared starting from known component.
  • the composition from which the foam is made contains water, a binder, a thickener, a surfactant wetting agent), a foam stabilizer and possibly a filler.
  • the composition contains one or more other substances to be applied to the substrate. These may be, for example, pigments, water-proofing compounds, compounds providing water absorbency, binders, antioxidants, functional compounds such as carbon black, and the like.
  • Binders suitable for use in the present invention are lower alkylacrylates, styrene-butadiene rubber, acrylonitrile rubber, polyurethane, epoxy-resins, polyvinylchloride, polyvinylidenechloride and copolymers of vinylidene chloride with other monomers, polyvinylacetate, partially hydrolyzed polyvinylacetate, polyvinylalcohol, polyvinylpyrrolidone, and the like.
  • these binders can be provided with acidic groups, for example by carboxylating them.
  • a suitable carboxylating agent is for example maleic anhydride.
  • Suitable surfactants are of the anionic or non-ionic type, such as soaps, alkyl-aryl sulfonates, fatty alcohol sulfates, ethoxylated fatty acid compounds and the like.
  • foam stabilizers suitable for use in the present invention the following compounds can be used: fatty acid-amide condensates, ammonium- and potassium stearate, cyclohexanole alkylamino salts of acetic acid, formic acid and propionic acid, tertiary amino oxides and the like.
  • the fillers to be used in connection with the present invention are the usual fillers for foam printing, and comprise pigments, active components such as carbon black, hydrated alumina, blown silica, etc.
  • the particle size of the fillers is preferably at most 20 »m, as the presence of larger particles can interfere with the process of the invention.
  • the foam composition is to be converted into a meta-stable foam in known manner, for example, by beating the composition in a high-speed mixer with air or another gas.
  • the invention is also directed to a printed substrate produced with the method of the invention.
  • These printed substrates are novel products as set out hereinbefore.
  • the web is printed on the same machine, and in register with the preceding print pattern with dots of a latent adhesive by means of a stencil of a similar pattern but with smaller apertures, so that the open area is now 10%.
  • the latent adhesive is a copolyamide solution in p-toluenesulfonamide having a dry content of 30%, which is applied in a quantity of 50 g/m2.
  • the web is uniformly dried, gelled and cured for 30 seconds at 150°C.
  • the registered prints can be applied, as desired, on the same side of the fibrous web or on opposite sides.
  • Rotation-screen machines equipped for this purpose are known per se.
  • the fibrous web thus treated is dot-printed with a quantity of 30 g/m2 of a copolyester solution provided with a foaming agent, having a dry content of 30%, by means of a rotation screen having a fineness of 1.1 mm (17 mesh).
  • the binder is uniformly dried and hardened in a furnace, and at the same time the printed dots of the latent copolyamide adhesive are foamed and gelled. This heat passage at 150°C takes 40 seconds.
  • the product is suitable for use as an interlining.
  • the product is dried in a furnace and hardened at 160°C for 2 minutes.
  • the product can be used as a suitcase liner.
  • Foam density is 100 g/l.
  • This first rotary-screen passage is followed by a second passage along a rotary screen that is also open, and whereby, on the same side of the web, a quantity of 10 g/m2 of dimensionally stable foam mixture, with a dry content of 20%, on the basis of a non-filled composition of melamine-fatty acid condensate and a fluorocarbon in the form of an emulsion.
  • Foam density is 100 g/l.
  • the depth of penetration of the latter passage is 0.1 mm.
  • a 2.0 mm thick white polyester fibrous web consisting of a mixture of 30% 5.0 dtex/50 mm, 40% 17.0 dtex/80 mm and 30% 3.3 dtex/40 mm, with 40% of the kind last-mentioned consisting of a melting fiber having a softening range of 166-220°C is, after fixation at 220°C, printed by means of two immediately consecutive rotary screen passages.
  • the first screen has a pattern with 80% free apertures of the screen area.
  • a quantity of 145 g/m2 of a dimensionally stable foam composition, having a dry content of 45%, on the basis of a latex of a hard methylmethacrylate resin with a foam density of 100 g/l is applied.
  • the second screen is patterned with 20% free apertures of the screen area and prints the substrate in registry with the pattern of the first screen, namely, on the still open substrate portions.
  • This is effected by means of a dimensionally stable foam containing 100% epoxy resin and having a foam density of 200 g/l, in a quantity of 100 g/m2.
  • the product is substantially dried at 150°C for 2 minutes and then subjected to after-drying and hardening at 140°C for 1 minute.
  • the product obtained cannot be crushed, and can be used as a flexible spacer for lamination.
  • a polyester fibrous web of 40 g/m2, consisting of 90% 1.7 dtex/40 mm and 10% 1.7 dtex melting fiber having a melting point of 130°C, and having a ratio in tensile strength in the longitudinal and transverse directions of 5:1 is provided by means of a rotary screen with a continuous top coating of 115 g/m2 of dimensionally stable foam on the basis of polyvinyl alcohol solution in vinylacetate, having a dry content of 40%, with 30% of the dry matter consisting of super-absorbent acrylate powder.
  • Foam density is 150 g/l.
  • the same side of the web is provided with a dose of 10 g/m2 of an instable, thickened foam, having a dry content of 10%, and a foam density of 200 g/l, on the basis of a solution of benzotriazole in ethanol.
  • the product is dried and hardened at 50°C for 1 minute.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coloring (AREA)
  • Laminated Bodies (AREA)
  • Printing Methods (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Claims (7)

  1. Procédé pour l'impression d'un substrat par une pâte visqueuse sous la forme d'une mousse, en utilisant une machine pour impression sérigraphique, caractérisé en ce que l'on utilise une mousse possédant des propriétés de mousse métastable, cette mousse ne présentant aucun liquide déposé après 24 heures de repos dans une éprouvette graduée, couverte et à 20°C, et cette mousse présentant une teneur en matières sèches d'au moins 20 %, la structure de la mousse et le dessin du pochoir étant essentiellement conservés pendant le transfert sur le substrat et pendant le séchage ultérieur.
  2. Procédé selon la revendication 1, caractérisé en ce que le substrat est une feuille légèrement renforcée par des fibres.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que l'on applique dans le système de raclette de la machine d'impression sérigraphique une pression telle que lorsqu'elle est transférée au substrat, la composition de mousse peut pénétrer dans le substrat jusqu'à une profondeur voulue, réglable, tout en conservant sa structure.
  4. Procédé selon les revendications 1-3, caractérisé en ce que le même substrat est imprimé au moins deux fois, en utilisant des pochoirs rotatifs, avant de soumettre le substrat ainsi imprimé à un traitement de fixation.
  5. Procédé selon la revendication 4, caractérisé en ce que le traitement avec les pochoirs rotatifs est appliqué simultanément et en correspondance sur les deux côtés du substrat.
  6. Procédé selon la revendication 5, caractérisé en ce que le traitement avec les pochoirs rotatifs est exécuté avec différentes sortes de pâtes visqueuses, étant entendu que l'une au moins de celles-ci doit avoir la forme d'une mousse métastable et doit avoir au moins essentiellement conservé sa structure de mousse après le traitement de fixation.
  7. Substrat imprimé produit selon l'une quelconque des revendications 1-6.
EP84201823A 1983-06-28 1984-12-10 Procédé d'impression d'un substrat Expired - Lifetime EP0184596B2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI844637A FI79355C (fi) 1984-11-27 1984-11-27 Saett att trycka ett material.
DE8484201823T DE3478233D1 (en) 1984-12-10 1984-12-10 A method of printing a substrate
AT84201823T ATE43144T1 (de) 1984-12-10 1984-12-10 Verfahren zum bedrucken eines substrats.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8302296A NL190934C (nl) 1983-06-28 1983-06-28 Werkwijze voor het bedrukken van een vezelvlies.
FI844637A FI79355C (fi) 1984-11-27 1984-11-27 Saett att trycka ett material.

Publications (3)

Publication Number Publication Date
EP0184596A1 EP0184596A1 (fr) 1986-06-18
EP0184596B1 EP0184596B1 (fr) 1989-05-17
EP0184596B2 true EP0184596B2 (fr) 1995-04-12

Family

ID=26157687

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84201823A Expired - Lifetime EP0184596B2 (fr) 1983-06-28 1984-12-10 Procédé d'impression d'un substrat

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE295389T1 (de) 1995-01-23 2005-05-15 Stockhausen Chem Fab Gmbh Träger mit hochabsorbierendem material, verfahren zu seiner herstellung und seine verwendung
AU1444000A (en) * 1998-10-09 2000-05-01 Airformed Composites, Inc. Nonwoven fabric composites having zones of diverse properties
ES2297873T3 (es) 1998-12-16 2008-05-01 Lantor B.V. Material de nucleo para sistemas de molde cerrado.
ITCO20130034A1 (it) * 2013-07-26 2015-01-27 Alta Chemicals Srl Processo per il pre-trattamento di articoli tessili atti alla stampa digitale con stampanti ink jet

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2924661A1 (de) * 1979-06-19 1981-01-15 Bayer Ag Verfahren zur behandlung von textilmaterialien mit verschaeumten flotten

Also Published As

Publication number Publication date
EP0184596A1 (fr) 1986-06-18
EP0184596B1 (fr) 1989-05-17

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