Classifications

• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06Q—DECORATING TEXTILES
  • D06Q1/00—Decorating textiles
  • D06Q1/04—Decorating textiles by metallising
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
  • Y10T428/24628—Nonplanar uniform thickness material
  • Y10T428/24636—Embodying mechanically interengaged strand[s], strand-portion[s] or strand-like strip[s] [e.g., weave, knit, etc.]
  • Y10T428/24645—Embodying mechanically interengaged strand[s], strand-portion[s] or strand-like strip[s] [e.g., weave, knit, etc.] with folds in parallel planes
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
  • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
  • Y10T428/24917—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including metal layer
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
  • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
  • Y10T442/3382—Including a free metal or alloy constituent
  • Y10T442/3398—Vapor or sputter deposited metal layer
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
  • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
  • Y10T442/3382—Including a free metal or alloy constituent
  • Y10T442/3415—Preformed metallic film or foil or sheet [film or foil or sheet had structural integrity prior to association with the woven fabric]

Definitions

• the invention relates to a reflective, flexible textile web made of an at least one-sided metal-coated textile carrier in the form of a woven fabric, knitted fabric, knitted fabric, fleece or a thread layer sewing fabric, the threads or fibers of which are coated with, if necessary, flame-retardant modified, transparent plastic, and a method for the same Manufacture and its use.
• a carrier net is glued on both sides with a textile carrier web and in which the two textile support webs in each case on the outside with a metal coating and the metal coatings with a - from DE-OS 31 35 271 an infrared radiation reflective, flexible, multi-layered material web be further protective coating are provided.
• This well-known material web is characterized by high heat reflection with simultaneous water vapor permeability.
• the two metal coatings are formed in the known material web, which is apparently to be used for the production of insulating blinds, such as are used in particular in roof windows, as coherently closed, vacuum-evaporated metal layers and therefore completely impermeable to light in the visible range, ie in the Wavelength range between 0.365 and 0.75 ⁇ m.
• DE-PS 30 16 191 discloses a flame-retardant sun protection roller blind made of a textile carrier in the form of a woven fabric, knitted fabric, knitted fabric, fleece or a thread layer sewing fabric, the threads or fibers of which are impregnated with two different layers of flexible, halogen-free plastic, namely with a thermoset and with a thermoplastic plastic layer, both plastic layers containing a halogen-free flame retardant.
• This well-known sun protection roller blind is not metal-coated; it is therefore permeable both to light in the visible range and to longer-wave radiation in the near infrared range (0.75 - 3 ⁇ m).
• insulating roller blinds or insulating roller blind fabrics are also known on the market, which are used, in particular, to prevent excessive sunshine in roof windows, which are produced by laminating a relatively strong aluminum foil with a textile material, the adhesion being mediated by an adhesive layer between the metal foil and the textile material becomes.
• These relatively stiff insulating roller blinds are also completely impermeable to light in the visible range.
• the invention has for its object to provide a metal-coated flexible textile web that has a high reflectivity for infrared radiation in the near IR range between about 0.75 and 3 microns, but at the same time good transmission and translucency properties for light in the visible range between 0.365 and 0.75 ⁇ m and, despite the metal coating, maintains its textile appearance and character on at least one side.
• the invention is also based on the object of providing a method for producing such a textile web.
• the reflectivity for infrared radiation in the wavelength range between 0.75 and 3) .Lm in the textile web according to the invention, in which only the raised areas of the textile support are coated with the reflecting metal, is only insignificantly lower than the reflectivity a full-surface covered with metal textile web for the same wavelength range.
• raised areas are to be understood as the crossing points between warp and weft threads which lie outside the plane of the warp threads and outside the plane of the weft threads; in the case of a knitted fabric (knitted fabric, knitted fabric), the raised areas are those where the stitch elements of adjacent rows of stitches and wale stitches intersect, while the random-fiber nonwovens and thread-layer knitted fabrics are those areas where more threads or fibers cross than one another cross on average in the thinner areas of these non-wovens.
• the reflecting textile web according to the invention has a high translucency for light in the visible range.
• a sun protection roller blind made from the textile web according to the invention therefore does not lead to a complete darkening of the room equipped with it, but, like a textile curtain or a curtain, allows sufficient light to pass through in the visible area, which leads to a pleasant dampening of the sunlight, but not to complete blackout.
• the incident heat radiation is largely reflected and hardly absorbed.
• the textile web according to the invention is provided with a metal coating on only one side, this remains pure Textile appearance of the non-metallized back of the textile carrier is completely preserved.
• An advantageous embodiment of the textile web according to the invention is that there is an adhesion-promoting plastic layer at least at the metal-coated points of the web between the plastic-coated textile carrier and the metal coating. This improves the adhesion of the metal particles to the textile backing, which is particularly important when the textile web is to be used to manufacture roller blinds. Because when the roller blind is rolled up and down, the coating is subjected to a high level of mechanical stress, so that the metal particles flake off over time if no additional adhesive plastic layer is used.
• a structural fabric is preferably used as the textile carrier, for example a fabric in which the weft yarn is bulkier and heavier than the warp yarn, or a fabric which is made from crimped or otherwise known structured yarns.
• These fabrics with a relief-like surface have particularly pronounced raised and deeper areas, which facilitates the selective metal coating only in the raised areas of the crossing points of the threads or fibers of the textile web.
• the textile backing is coated with a mixture of thermoplastic and thermosetting plastic, preferably of acrylate copolymers, which optionally additionally contain an ethylene-vinyl acetate copolymer. It has been shown that the selection of particularly relieved of such a special K unststoffgemischs selective, more or less point-shaped metal coating.
• the metal coating is coated in a manner known per se with a thin layer of a transparent protective lacquer and is thereby additionally protected against abrasion, damage and wear.
• the textile web according to the invention preferably has a diffuse reflection of 60-90% of the light and heat radiation of the near infrared range impinging on the metal-coated side with wavelengths between 0.7 and 2.5 ⁇ m.
• the weight per unit area of the coating composition applied by dip impregnation is preferably 60 to 120 g / M 2 .
• thermoplastic acrylate copolymer 40 to 50 parts by weight of one or more self-crosslinking thermosetting acrylate homo- or copolymers and 0 to 20 parts by weight of ethylene-vinyl acetate for immersion impregnation Copolymer is used.
• This special plastic mixture leads to a high selectivity of the adhesion of the metal particles in the area of the raised areas, ie the crosshairs of the textile backing.
• a dispersion can be used for the dip impregnation which additionally contains flame retardants and / or biocides in a manner known per se.
• the textile web according to the invention in public buildings such as schools, hospitals, theaters or in particularly fire-prone objects such. B. to be used in hotels, restaurants, discotheques or in motor vehicles and airplanes, it is useful not only a flame retardant or from the outset flame retardant textile carrier used, but also used for the coating a plastic dispersion that contains a flame retardant.
• the textile web according to the invention is to be used in damp rooms or for the interior of ships, then it is expedient to add a biocide to the plastic dispersion.
• the textile backing will generally be made from the usual combustible textile fibers of natural or synthetic origin for reasons of cost, it can also be made from incombustible fibers, for example from glass fibers, ceramic fibers, metal fibers, carbon and aramid fibers.
• the excess coating mass is expediently scraped off on both sides by means of an air knife system with two staggered knives, but other conventional doctor blades can also be used; it is only important that the doctoring is basically carried out from both sides of the coated textile backing so that the depressions lying between the raised areas of the textile material are not filled and thus leveled on one of the two sides.
• a polyester film coated with aluminum, gold or copper is preferably used as the metal-coated film.
• the polyester film only serves as an auxiliary film or as an intermediate support for the metal layer.
• the metal evaporated onto the film can also be coated in a manner known per se in order to achieve special aesthetic effects.
• a decisive advantage of the method according to the invention is that the metal is transferred from an auxiliary film to the plastic-coated textile carrier is transferred using pressure and heat, so that it is not necessary to vapor-deposit the entire composite with the metal.
• the auxiliary film which is commercially available as such must also be vapor-coated with the metal, this can be carried out much more simply and therefore more cheaply in the polyester film, which has a much less complicated structure.
• such a film which has a release agent layer between the polyester carrier film and the vapor-deposited metal layer, because then the carrier film can be more easily removed from the composite after the metal has been transferred to the plastic-coated textile web without the transferred metal particles again Pull off the textile web.
• Such a metal transfer film is preferably used in which the vapor-deposited metal layer is additionally covered with an adhesion-promoting plastic layer.
• the adhesion-promoting plastic layer improves the adhesion between the metal particles and the plastic-coated textile web.
• This adhesion-promoting plastic layer preferably consists of ethylene-vinyl acetate copolymer.
• the metal transfer from the metal-coated film to the plastic-coated textile web is carried out with the aid of laminating rollers, preferably under a pressure of 4'10-6-10 Pa and at a temperature of about 110-140 ° C.
• the use of the textile web according to the invention is particularly advantageous for the production of sun protection blinds, camouflage nets or tarpaulins, insulating roller blinds, insulating wallpapers, work clothes and for the production of interior linings of motor vehicles and aircraft.
• the textile web according to the invention can be used in general vehicle sector, in medical technology, in construction, both for the interior and exterior of high-rise buildings, in horticulture, e.g. B. for sun blinds in greenhouses, and wherever it is important to keep long-wave electromagnetic radiation, especially heat radiation, from people, machines, equipment, buildings or surfaces.
• the transmission in this wavelength range can be 10-50% for the textile web according to the invention.
• the appearance of the textile web according to the invention can be adjusted in almost any way by using colored textile carriers and pigmented coating compositions, the translucency of the textile web being retained in any case, but it must be taken into account that the textile carrier and / or the coating composition is colored darker higher heat absorption by the textile web itself is inevitable.
• the use of unpigmented coating compositions and undyed or at least light-colored textile supports is therefore preferred.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Laminated Bodies (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
• Chemical Or Physical Treatment Of Fibers (AREA)

Priority Applications (5)

Applications Claiming Priority (1)

Publications (1)

Family

ID=8193358

Family Applications (2)

Family Applications After (1)

Country Status (3)

Cited By (1)

Families Citing this family (30)

Citations (4)

Family Cites Families (3)

• 1985
  • 1985-03-08 EP EP19850102648 patent/EP0193636A1/fr not_active Withdrawn
  • 1985-09-23 US US06/778,907 patent/US4645704A/en not_active Expired - Fee Related
• 1986
  • 1986-03-05 DE DE8686102864T patent/DE3664938D1/de not_active Expired
  • 1986-03-05 EP EP19860102864 patent/EP0194564B1/fr not_active Expired

Patent Citations (4)

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