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
  • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
  • D04H3/005—Synthetic yarns or filaments
  • D04H3/009—Condensation or reaction polymers
  • D04H3/011—Polyesters
• • 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
  • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
  • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
  • D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
• • 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
  • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
  • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
  • D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
  • D04H3/153—Mixed yarns or filaments
• • 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
  • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
  • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
  • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
• • 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
  • D06N5/00—Roofing materials comprising a fibrous web coated with bitumen or another polymer, e.g. pitch
• • 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.]
  • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
• • 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.]
  • Y10T428/24826—Spot bonds connect components
• • 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.]
  • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
  • Y10T442/681—Spun-bonded nonwoven fabric

Definitions

• the invention relates to a carrier sheet for roofing membranes and one with this carrier sheet manufactured roofing membrane.
• roofing membranes are known to be under the tiles or slate of steep roofs or the like as protection against flying snow, dust, etc.
• roofing membranes should on the one hand impermeable to water and, on the other hand, permeable to air and steam. They are also said to be high Have strength, in particular tear resistance, e.g. the weight of the roof covering in the event of an accident to be able to record.
• roofing membranes made of grid-reinforced foils are widespread. These foils do have one good tear resistance; However, the tear resistance and often also the vapor permeability remain unsatisfactory.
• From DE-C-34 19 675 is a nonwoven made of polyethylene glycol terephthalate and Polybutylene glycol terephthalate is known to be needled and thermally solidified.
• EP-PS 0027750 describes a carrier web for a roofing membrane which consists of a nonwoven fabric made of polypropylene, polyethylene, polyester or polyvinyl and has a weight per unit area between 85 and 200 g / m 2 .
• the nonwoven fabric is provided with a bitumen layer on one side by warmly coating the nonwoven fabric with the bitumen and then cooling it to produce microholes or microcracks.
• This publication does not reveal anything about the structure of the nonwoven fabric - apart from the fiber material used and the weight per unit area.
• the invention has for its object to provide a carrier sheet for roofing membranes, the ensures high strength, in particular tear resistance of the roofing membrane and good Dimensional stability even at high processing temperatures.
• the object of the invention is achieved by a carrier insert according to claim 1 realized.
• the carrier web is given the structure according to the invention the spunbond nonwoven has good dimensional stability even at high processing temperatures. This is for the production of roofing underlays of importance, in which the carrier sheet with bitumen is provided. Processing temperatures are particularly prevalent when impregnating the carrier sheet with bitumen from 160 to 180 ° C. As has been shown, the carrier web designed according to the invention has good dimensional stability even at these high temperatures, which is important for processing the Carrier web is essential. Carrier sheets made of polypropylene, which is a softening point of approx. 156 ° C, on the other hand, are less suitable, for example, for bituminization.
• the carrier web for producing a roofing underlay is preferably in Used with bitumen.
• the carrier web is preferably impregnated with bitumen; instead, the carrier web can also be coated with bitumen, preferably on both sides is coated with bitumen.
• the carrier web designed according to the invention has a tear resistance in the The order of magnitude from 20 N to 80 N, a nail pull-out strength from 50 N to 180 N and a perforation stability from 400 N to 1200 N.
• a tear resistance in the The order of magnitude from 20 N to 80 N
• a nail pull-out strength from 50 N to 180 N
• a perforation stability from 400 N to 1200 N.
• bitumen instead of bitumen, another material, e.g. Polyethylene or polyvinyl chloride with the Spunbond according to the invention can be used.
• the low basis weight of the spunbonded fabric is advantageous in terms of vapor permeability and material consumption.
• the weight per unit area of the spunbonded fabric is preferably 70 to 90 g / m 2 .
• the fine individual titer of the spunbonded filaments gives good adhesion to that of the spunbonded nonwoven connected material, especially the bitumen, due to the high specific surface area of the Spunbond.
• the individual titer of the spunbonded filaments is preferably 2 to 5 dtex, in particular 4 dtex.
• Polymers whose melting point is lower than are particularly suitable as melt binders the melting point of the filaments that form the spunbond - the so-called supporting filaments.
• the melting point of the melt binder is expediently 10 ° C., preferably 30 ° C. below that Melting point of the supporting filaments.
• melt binders consist of polyesters, preferably polybutylene terephthalate or modified polyesters with a correspondingly lowered melting point, preferably modified Polyethylene terephthalate.
• the melt binder is preferably introduced in fiber form.
• the bonding takes place by heat treatment of the fleece, in particular by means of a calender, which can have smooth or profiled rollers, for example embossing rollers with engraving.
• the consolidation can be carried out exclusively by the calender or by means of calenders (pre-consolidation) and subsequent further heat treatment, for example by means of hot air or radiation energy.
• the melt binders mentioned above can be used particularly advantageously in the form of binding filaments Fleece during manufacture, i.e. when depositing the filaments on the conveyor belt.
• the binding filaments melt completely or partially and form the desired binding points at the crossing points of the supporting filaments (Tying sail).
• the proportion of binder is advantageously 5 to 25% by weight, preferably 10 to 15% by weight.
• a spunbonded nonwoven made of polyethylene terephthalate filaments with a single titer of 4 dtex and binding filaments made from a modified polyester with a share of 9% was used as the carrier web.
• the spunbonded web was thermomechanically pre-consolidated by embossing rollers and then finally consolidated by hot air.
• the basis weight of the support was 100 g / m 2 .
• the carrier sheet was then bituminized in a roofing membrane system, coated on both sides with bitumen and sanded. An excellent dimensional stability during the processing process was noticed.
• the roofing membrane produced in this way had the following properties: Basis weight 440 g / m 2 according to DIN 52 123 thickness 0.60 mm "" 52 123 Maximum traction along 320 N / 5 cm “" 52 123 "across 300 N / 5 cm “” 52 123 Maximum tensile strength elongation: longitudinal 35% “" 52 123 across 45% "” 52 123 Static perforation Class L 4 according to NF P 84-352 Nail tear resistance 150 N "UEATC Tear resistance, lengthways 50 N "53 356 across 50 N "53 356

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Nonwoven Fabrics (AREA)
• Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
• Particle Accelerators (AREA)
• Auxiliary Devices For And Details Of Packaging Control (AREA)
• Supporting Of Heads In Record-Carrier Devices (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
• Tents Or Canopies (AREA)
• Separation Using Semi-Permeable Membranes (AREA)

Applications Claiming Priority (2)

Publications (3)

Family

ID=6402119

Family Applications (1)

Country Status (9)

Cited By (1)

Families Citing this family (44)

Family Cites Families (7)

• 1990
  • 1990-03-14 DE DE4008043A patent/DE4008043A1/de not_active Withdrawn
• 1991
  • 1991-03-09 DK DK91103645T patent/DK0446822T4/da active
  • 1991-03-09 EP EP19910103645 patent/EP0446822B2/de not_active Expired - Lifetime
  • 1991-03-09 DE DE59105638T patent/DE59105638D1/de not_active Expired - Fee Related
  • 1991-03-09 AT AT91103645T patent/ATE123538T1/de not_active IP Right Cessation
  • 1991-03-12 US US07/667,888 patent/US5130178A/en not_active Expired - Lifetime
  • 1991-03-13 PT PT97025A patent/PT97025A/pt not_active Application Discontinuation
  • 1991-03-13 IE IE84491A patent/IE67658B1/en not_active IP Right Cessation
  • 1991-03-14 JP JP4935491A patent/JP3096311B2/ja not_active Expired - Fee Related
• 1999
  • 1999-08-18 GR GR990402060T patent/GR3030982T3/el unknown

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