Classifications

• • E—FIXED CONSTRUCTIONS
  • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
  • E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
  • E01C13/10—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds for artificial surfaces for outdoor or indoor practice of snow or ice sports
• • 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
  • D04H11/00—Non-woven pile fabrics
• • D—TEXTILES; PAPER
  • D05—SEWING; EMBROIDERING; TUFTING
  • D05C—EMBROIDERING; TUFTING
  • D05C17/00—Embroidered or tufted products; Base fabrics specially adapted for embroidered work; Inserts for producing surface irregularities in embroidered products
  • D05C17/02—Tufted products
• • 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
  • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
  • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
  • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D06M15/244—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons
  • D06M15/256—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons containing fluorine
• • 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
  • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
  • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
  • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
• • E—FIXED CONSTRUCTIONS
  • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
  • E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
  • E01C13/08—Surfaces simulating grass ; Grass-grown sports grounds
• • D—TEXTILES; PAPER
  • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
  • D10B2321/021—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polyethylene
• • D—TEXTILES; PAPER
  • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
  • D10B2321/022—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polypropylene
• • D—TEXTILES; PAPER
  • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
  • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
• • D—TEXTILES; PAPER
  • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B2401/00—Physical properties
• • D—TEXTILES; PAPER
  • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B2401/00—Physical properties
  • D10B2401/06—Load-responsive characteristics
  • D10B2401/062—Load-responsive characteristics stiff, shape retention

Definitions

• the invention relates to a method for manufacturing artificial grass, consisting of an underlayer and strip-like pile threads embedded therein, which threads protrude, as grass, on one side out of the underlayer, particularly for a sports field, for instance a football pitch.
• the object of the current invention is to make available a method which enables the manufacture of an artificial grass such that it meets the requirements laid down with respect to coefficient of friction/roughness.
• Use can be made of frizzing or crinkles to obtain the isotropic properties of the turf. An effective lowering of the coefficient of friction can be realized in this way. Use can be made for this purpose of a circle knit method or knit­deknit.
• the crinkles can be fixed in a furnace, for example by means of hot air or steam.
• Use can be made for instance of at least one treatment at a temperature of approximately 130°C for a time interval in the order of 10 minutes. It can be useful, depending on the materials employed, to repeat such a thermal treatment several times.
• a qualitatively high-grade artificial grass can be obtained with such a method.
• a further lowering of the coeff­icient of friction can be carried out by adding one or more substances to the base material, which is for example poly­propene.
• Polyethylene terephthalate can for example be added in a ratio in the order of 50% : 50%.
• Other substances can also be used.
• Special mechanical techniques can also be emp­loyed in the manufacture of the threads, for instance a co-­extrusion of a number, e.g. 3 or 4, of films onto one another, including for example at least one moisture absorbing layer. Even "super absorbers" can be applied in this context.
• the function of a moisture absorbing layer is to take up moisture and release it at the moment when the pitch has to be played on, which results in a lowered coefficient of friction being brought about owing to the released moisture, also in dry weather.
• a strip-like thread consisting of 100% linear low density polypropylene provides a soft artificial grass, of which the recovery capacity leaves something to be desired. The coefficient of friction is certainly lowered and the resistance to wear is good.
• a laminate type structure for example 3 co-extruded films, can consist of a centre layer of the relatively rigid polypropene with a thickness of 60%, having on either side a layer with a thickness of 20% and consisting of another more flexible material, for example the linear low density polyethylene mentioned earlier.
• use can be made of polyethylene terephthalate. This material possesses a low coefficient of friction and also has a (small) moisture absorption capacity.
• An after treatment can be applied for addition of smoo­thing substances as coating layer on the pile threads, for example consisting of polytetrafluoroethylene and/or material on a silicon base.
• Strips can be treated in the factory.
• a water dispersion of smoothing substance can be manufactured and applied to the threads by spraying or another suitable process, and the water allowed to evaporate.
• the strip-like threads can thus for example be guided beforehand through a dispersion of the smoothing material, or a field with artific­ial grass can be rolled with a roller running through a liquid bath.
• Thread as specified above, fibrillated with four needles per centimetre, incision length 8 - 12 mm.
• Thread as specified above.
• a surface treatment agent for smoothing the threads use is made of a surface treatment agent.
• Surface treatment means the applying of a liquid to give the thread the desired properties with respect to its processing and final characteristics.
• a surface treatment agent can if necessary permeate into the thread through dif­fusion.
• the surface treatment agent consisted of a mixture of silicon oils and polytetrafluoroethylene. The surface treatment agent was dissolved in water. The dispersion was sprayed on. After evaporation of the water there remained 1-2% active substance or surface treatment agent per kg. of pile thread.
• a typical carpet construction for artificial football turf is manufactured on a tufting machine with 3/8 or 5/16 division, a stitch count of 14-16 per 10 cm and a pile height of 32-35 mm.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Prostheses (AREA)
• Materials For Medical Uses (AREA)
• Knitting Of Fabric (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
• Artificial Filaments (AREA)
• Road Paving Structures (AREA)
• Pretreatment Of Seeds And Plants (AREA)
• Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
• Carpets (AREA)
• Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (3)

Family

ID=19848540

Family Applications (1)

Country Status (6)

Cited By (15)

Families Citing this family (3)

Family Cites Families (12)

• 1986
  • 1986-09-12 NL NL8602312A patent/NL8602312A/nl not_active Application Discontinuation
• 1987
  • 1987-09-14 ES ES198787201796T patent/ES2033298T3/es not_active Expired - Lifetime
  • 1987-09-14 AT AT87201796T patent/ATE78537T1/de not_active IP Right Cessation
  • 1987-09-14 DE DE8787201796T patent/DE3780543T2/de not_active Revoked
  • 1987-09-14 EP EP87201796A patent/EP0259940B1/fr not_active Expired - Lifetime
• 1992
  • 1992-08-11 GR GR920401741T patent/GR3005414T3/el unknown

Also Published As

Similar Documents

Legal Events