EP0875618A2 - Procédé pour la fabrication en continu de revêtements de murs contenant une étoffe non-tissée et revêtements de murs ainsi obtenus - Google Patents

Procédé pour la fabrication en continu de revêtements de murs contenant une étoffe non-tissée et revêtements de murs ainsi obtenus Download PDF

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Publication number
EP0875618A2
EP0875618A2 EP98106875A EP98106875A EP0875618A2 EP 0875618 A2 EP0875618 A2 EP 0875618A2 EP 98106875 A EP98106875 A EP 98106875A EP 98106875 A EP98106875 A EP 98106875A EP 0875618 A2 EP0875618 A2 EP 0875618A2
Authority
EP
European Patent Office
Prior art keywords
adhesive
woven
backing
sheets
particles
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
EP98106875A
Other languages
German (de)
English (en)
Other versions
EP0875618B1 (fr
EP0875618A3 (fr
Inventor
Gianfranco Salvi
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.)
EVOREMA LTD
Original Assignee
Anni 90 Srl
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 Anni 90 Srl filed Critical Anni 90 Srl
Publication of EP0875618A2 publication Critical patent/EP0875618A2/fr
Publication of EP0875618A3 publication Critical patent/EP0875618A3/fr
Application granted granted Critical
Publication of EP0875618B1 publication Critical patent/EP0875618B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/40—Distributing applied liquids or other fluent materials by members moving relatively to surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/30—Processes for applying liquids or other fluent materials performed by gravity only, i.e. flow coating
    • 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
    • D06N7/0002—Wallpaper or wall covering on textile basis
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06Q—DECORATING TEXTILES
    • D06Q1/00—Decorating textiles
    • D06Q1/10—Decorating textiles by treatment with, or fixation of, a particulate material, e.g. mica, glass beads

Definitions

  • This invention relates to a method for the continuous production of sheets for wall coverings with an attachment backing made of non-woven fibreglass fabric, and also to the sheets produced by the said method.
  • the walls of domestic dwellings are often decorated with smooth plaster, or with paint or wallpapers.
  • the decoration of vertical walls raises many problems depending on the various ways it is carried out. These problems can be group in two fundamental categories:
  • Another object is to devise a method of producing sheets for wall coverings with different visible structures such as to present differing capacities to absorb paint and create bitonal chromatic effects from a single coloration.
  • the backing is preferably MICROLITH-FF-125/2-B6 sold by Schuller Company and has a thickness of approximately 0.7 mm.
  • equally good results suitable for specific requirements could also be obtained with backings having a weight per unit area of between 100 and 150 g/m 2 .
  • opacified In order to enable the said backing to perform its covering role effectively it is “opacified", by known means, prior to its printing.
  • the term “opacified” is used in the industry to indicate an optical whitening treatment in which the backing is spread with an ordinary mixture of acrylic resin and titanium dioxide. With this opacifying primer the covering is able to conceal even large differences of chromatic tonality, to such an extent that even a single coat of paint will be found sufficient as a finishing for the covered wall.
  • a tube 7 is mounted inside the said printing cylinder 6 to supply the adhesive for printing; the said adhesive emerges uniformly along the entire length of the tube 7 in order to offer to a fixed squeegee 8 an amount suitable for spreading on the densely perforated inside surface of the printing cylinder 6 as the cylinder rotates 9.
  • Thin discs 10A (Fig. 2) of adhesive 25 are extruded from these minuscule holes and deposited on the surface of the non-woven backing.
  • the said backing is traveling in a direction 11 with a speed equal to the peripheral speed of a back pressure drum 5, in contact with the surface of the printing cylinder 6 through the interposed backing 1.
  • the said discs 10A after undergoing compression, then tend to expand and join together along their short contacting generatrices.
  • the adhesive 25 has a dynamic viscosity measured with a Mettler RM180 Rheomat instrument of between 0.93 and 1.80 Pa.s at a temperature of 25.5°C and with a shear gradient of 200 1/s using the "33" measuring system.
  • the non-woven backing After receiving the adhesive in shapes representing a desired printed design 14 which includes areas 24 of the non-woven backing that are visible, the non-woven backing arrives at a turn roll 15 that deflects it downwards, where it passes around the roll 12, turning through an arc of approximately 180° before traveling back up towards another turn roll 16 from which it passes on to a further roll 17 which guides it towards an ordinary drying oven (not drawn), after an ordinary blower 26 has first removed any residual particles that have not stuck to the adhesive.
  • the backing 1 exposes its freshly printed surface 1A to a shower of hard particles 18 dropped through a slot 19 in the bottom of a hopper 20.
  • the width of this slot is adjustable automatically or manually to suit the forward speed of the fabric, that is to say so as to release the optimum quantity of particles.
  • Most of these particles however fall onto the roll 12 which, since it is rotating in a direction 21, transfers them onto the said printed surface 1A, into which they sink under the pressure of the same roll 12 through an arc of approximately 180°.
  • the passage around the roll 12 has the advantage that it enables less fluid adhesives to be used, thus promoting the formation of the abovementioned microholes 11 and reducing the possibility of its working its way through the thickness of the non-woven backing 1.
  • the abovementioned solution of forced "squeezing" of the hard particles 18 into the relatively viscous adhesive 25 avoids the dangerous alternative necessity of entrusting the adhesion of the particles to the fluidity of the adhesive 25.
  • the ratio of the thickness of the adhesive screen-printed onto the backing 1 to the general diameter of the hard granules or particles is approximately 0.85:1. In other words about 15% of each particle 18 projects above the surface of the adhesive.
  • the problem of this excess is then eliminated by the present method by providing underneath a trough 27 with powerful suction means operating at its sides to collect all the particles that have not stuck to the adhesive and return them to the hopper 20 in accordance with known methods.
  • the ideal particles 18 for this invention are grains of sand, i.e. of quartz with a diameter of approximately 0.2 mm, but this does not rule out the use of particles of some other material having a hardness satisfactory for the purpose.
  • the non-woven fabric suggested as preferred in the said method is of the type made up of short glass fibres laid in perpendicular layers.
  • This clothing is usually treated with photosensitive gelatins spread by a special axially moving ring and treated by familiar techniques so as to leave certain perforated areas open, through which the squeegee can squeeze the printable adhesive 25, and to block other areas through which no adhesive is to pass; the shape of this area defines the shape 14 deposited or printed on the backing.
  • the quantity of adhesive deposited represents a point of equilibrium between multiple factors connected with the intrinsic properties of the printable adhesive, the mechanical strength of the squeegee, the mechanical strength of the perforated plate, the thickness of this plate (because the greater the thickness the holes pass through, the more adhesive they can hold and release), and the thickness of the covering on the outside of the clothing formed by the gelatins which then set into a very hard resin.
  • the thickness of the outer covering affects the distance between the clothing and the surface to be printed with the adhesive 25 pressed by the squeegee 8 and variously absorbed by adhesion by the printable surface of the backing 1 owing to the action of the back pressure drum 15.
  • One practical example that offers an equilibrium between the factors cited, and enables the method to be carried out satisfactorily employs nickel-chromium clothings having a thickness of 210 microns and a 100 "mesh” perforation. It also uses two layers of masking gelatin (for creating the design 14 to be printed) so as to give "non-inking" thicknesses on the outside of the clothings that are very great and compatible with the relatively high density of the adhesive 25.
  • the said adhesive is preferably of acrylic type (e.g.
  • the method can also be carried out with other adhesives, such as vinyl type adhesives.
  • the high viscosity of the printable adhesive necessary for the implementation of the method, creates the manufacturing problem of a gradual accumulation of the adhesive at the open ends of the clothing (i.e. of the printing cylinder 6): such an accumulation creates "rings" of adhesive which ooze out at the sides and can be picked up simply by the movements of parts around the outside of the clothing. This would cause the rings to become flattened onto the backing 1, which would thereby be soiled - in other words continuously ruined, causing immense damage.
  • the method provides for the elimination of this potential event by employing two dedicated suction pumps, preferably of the diaphragm type; these pumps are positioned at the two open ends of the clothing and close to the two ends of the squeegee 8 in order to remove the adhesive that would tend to ooze out of the said printing cylinder or clothing.
  • the resulting product has the advantage of being thick, semirigid and composed primarily of mineral substances. In addition it is suitable for hanging definitively while yet being easy to remove (strippable) when required. Since its surface is made with different materials and porosities (1, 24; 25, 18) it has the advantage that bitonal chromatic effects can be obtained with a single coat of paint.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Finishing Walls (AREA)
  • Adhesives Or Adhesive Processes (AREA)
EP98106875A 1997-04-16 1998-04-16 Procédé pour la fabrication en continu de revêtements de murs contenant une étoffe non-tissée et revêtements de murs ainsi obtenus Expired - Lifetime EP0875618B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT97BG000019A IT1297842B1 (it) 1997-04-16 1997-04-16 Procedimento realizzativo in continuo di fogli per rivestimenti murali con base di ancoraggio in tessuto-non-tessuto di fibra di vetro e
ITBG970019 1997-04-16

Publications (3)

Publication Number Publication Date
EP0875618A2 true EP0875618A2 (fr) 1998-11-04
EP0875618A3 EP0875618A3 (fr) 1999-07-28
EP0875618B1 EP0875618B1 (fr) 2002-09-11

Family

ID=11336514

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98106875A Expired - Lifetime EP0875618B1 (fr) 1997-04-16 1998-04-16 Procédé pour la fabrication en continu de revêtements de murs contenant une étoffe non-tissée et revêtements de murs ainsi obtenus

Country Status (4)

Country Link
EP (1) EP0875618B1 (fr)
AT (1) ATE223982T1 (fr)
DE (1) DE69807776T2 (fr)
IT (1) IT1297842B1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1254984A1 (fr) 2001-05-04 2002-11-06 Johns Manville Europe GmbH Revêtement mural en fibre de verre avec un effet volumétrique
CN115044312A (zh) * 2022-07-08 2022-09-13 浙江雅琪诺装饰材料有限公司 一种eva淋膜自粘无缝墙布及其制备方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005058788A1 (de) * 2005-12-09 2007-07-05 Weiss, Wilfried Detailumlappungseffektlayoutcollektionfunktionswandbelag

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02113934A (ja) * 1988-10-24 1990-04-26 Dynic Corp 吹付調発泡壁紙
EP0506253A1 (fr) * 1991-03-28 1992-09-30 Tarkett Inc. Matériaux en feuilles incrustés possédant une matrice décorative adhésive, appliquée sélectivement
WO1995027007A1 (fr) * 1994-04-05 1995-10-12 Congoleum Corporation Produits incrustes souples et leurs procedes de fabrication
DE19602218A1 (de) * 1995-02-01 1996-08-14 Optiplast Ges Fuer Kunststoffs Verfahren zur Herstellung von Tapeten oder ähnlichen Wandbekleidungen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02113934A (ja) * 1988-10-24 1990-04-26 Dynic Corp 吹付調発泡壁紙
EP0506253A1 (fr) * 1991-03-28 1992-09-30 Tarkett Inc. Matériaux en feuilles incrustés possédant une matrice décorative adhésive, appliquée sélectivement
WO1995027007A1 (fr) * 1994-04-05 1995-10-12 Congoleum Corporation Produits incrustes souples et leurs procedes de fabrication
DE19602218A1 (de) * 1995-02-01 1996-08-14 Optiplast Ges Fuer Kunststoffs Verfahren zur Herstellung von Tapeten oder ähnlichen Wandbekleidungen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 014, no. 331 (M-0999), 17 July 1990 & JP 02 113934 A (DYNIC CORP), 26 April 1990 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1254984A1 (fr) 2001-05-04 2002-11-06 Johns Manville Europe GmbH Revêtement mural en fibre de verre avec un effet volumétrique
CN115044312A (zh) * 2022-07-08 2022-09-13 浙江雅琪诺装饰材料有限公司 一种eva淋膜自粘无缝墙布及其制备方法

Also Published As

Publication number Publication date
DE69807776D1 (de) 2002-10-17
ATE223982T1 (de) 2002-09-15
ITBG970019A0 (it) 1997-04-16
EP0875618B1 (fr) 2002-09-11
DE69807776T2 (de) 2003-05-15
EP0875618A3 (fr) 1999-07-28
ITBG970019A1 (it) 1998-10-16
IT1297842B1 (it) 1999-12-20

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