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 a roofing membrane produced with this carrier membrane.
• roofing membranes are known to be installed under the tiles or slate slabs of steep roofs or the like as protection against flying snow, dust etc.
• roofing underlays should on the one hand be impermeable to water and on the other hand should be permeable to air and steam.
• they should have high strength, in particular tear resistance, e.g. to be able to absorb the weight of the roofer in the event of an accident.
• roofing underlays made of grid-reinforced foils are widespread. Although these films have good tear strength; However, the tear resistance and often also the vapor permeability remain unsatisfactory.
• a roofing membrane made of a polyurethane film is known, which is covered with a non-woven layer of e.g. Polyester is covered.
• a sarking membrane is mentioned which consists of highly tear-resistant polyester spunbonded fabric and is provided with a water-repellent and breathable special coating in the form of a paste.
• a sarking membrane which consists of highly tear-resistant polyester spunbonded fabric and is provided with a water-repellent and breathable special coating in the form of a paste.
• EP-PS 0027750 describes a carrier web for a roofing membrane which consists of a non-woven fabric made of polypropylene, polyethylene, polyester or polyvinyl and has a basis weight between 85 and 200 g / m2.
• the fiber fleece is used to manufacture the roofing membrane Provide a bitumen layer on one side by warm coating the nonwoven with the bitumen and then cooling to cause micro-holes or micro-cracks.
• This publication also shows nothing regarding 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 underlay, which ensures high strength, in particular tear resistance of the roofing underlay and which has good dimensional stability even at high processing temperatures.
• a carrier web for roofing underlays which consists of a spunbond made of polyester, in particular polyethylene terephthalate filaments
• this object is achieved according to the invention in that the spunbonded fabric has a basis weight of 50 to 100 g / m 2 with a single titer of the filaments of 1 to 8 dtex and is solidified by a melt binder.
• the carrier web obtains good dimensional stability even at high processing temperatures due to the structure of the spunbonded fabric according to the invention. This is important for the production of roofing underlays in which the carrier sheet is provided with bitumen. Processing temperatures of 160 to 180 ° C prevail, especially when impregnating the carrier sheet with bitumen. As has been shown, the carrier web designed according to the invention has good dimensional stability even at these high temperatures, which is essential for processing the carrier web. Carrier webs out In contrast, polypropylene, which has a softening point of approx. 156 ° C, is less suitable for bituminization, for example.
• the carrier web is preferably used in connection with bitumen to produce a roofing underlay.
• the carrier web is preferably impregnated with bitumen; instead, the carrier web can also be coated with bitumen, it preferably being coated on both sides with bitumen.
• the carrier web designed according to the invention has a tear resistance of the order of 20 N to 80 N, a nail tear resistance of 50 N to 180 N and a perforation stability of 400 N to 1200 N.
• bitumen instead of bitumen, another material, e.g. Polyethylene or polyvinyl chloride can be used with the spunbonded fabric according to the invention.
• the low basis weight of the spunbonded fabric is advantageous in terms of vapor permeability and material consumption.
• the basis weight of the spunbonded fabric is preferably 70 to 90 g / m 2.
• the fine individual titer of the spunbonded filaments results in good adhesion of the material associated with the spunbonded nonwoven, in particular the bitumen, due to the high specific surface area of the spunbonded nonwoven.
• the individual titer of the spunbonded nonwoven filaments is preferably 2 to 5 dtex, in particular 4 dtex.
• melt binders are polymers whose melting point is lower than the melting point of the the spunbonding - the so-called supporting - filaments.
• the melting point of the melt binder is expediently 10 ° C., preferably 30 ° C. below the 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 binders mentioned above can be used particularly advantageously in the form of binding filaments in the nonwoven 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 (binding sail) at the crossing points of the supporting filaments.
• 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 was used as the carrier web of 4 dtex and binding filaments made of a modified polyester with a share of 9%.
• the spunbonded fabric was thermomechanically pre-consolidated by embossing rollers and then finally consolidated by hot air.
• the basis weight of the support was 100 g / m2.
• 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.

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)
• Supporting Of Heads In Record-Carrier Devices (AREA)
• Particle Accelerators (AREA)
• Auxiliary Devices For And Details Of Packaging Control (AREA)
• Tents Or Canopies (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
• Separation Using Semi-Permeable Membranes (AREA)

Applications Claiming Priority (2)

Publications (3)

Family

ID=6402119

Family Applications (1)

Country Status (9)

Cited By (36)

Families Citing this family (12)

Citations (5)

Family Cites Families (2)

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

Patent Citations (5)

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