Abstract

A stitched double layer composite hose is provided. The stitched double layer composite hose includes a middle fabric pipe layer, an inner surface composite colloid material layer and an outer surface composite colloid material layer. The structure of the fabric pipe layer is weft-stitched double-layer unit structure. The double-layer unit structure includes an outer layer, an inner layer and stitched wefts. The inner layer includes inner layer warps and inner layer wefts; the outer layer includes outer layer warps and outer layer wefts. The stitched wefts interweave with the outer layer warps and the inner layer warps for conjoining the inner layer and the outer layer together. The fabric pipe layer weaved solves problems of the stitched double layer composite hose in the fabric pipe layer of traditional casing, with such advantages as high flexibility, less weaving point, less loss of yarn strength and less degree of torsion.

IPC Classes  ?

• F16L 11/08 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
• B29C 48/153 - Coating both inner and outer surfaces
• F16L 11/02 - Hoses, i.e. flexible pipes made of fibres or threads, e.g. of textile
• D03D 11/00 - Double or multi-ply fabrics not otherwise provided for
• B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
• B32B 5/06 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments characterised by a fibrous layer needled to another layer, e.g. of fibres, of paper
• B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
• B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
• B32B 25/10 - Layered products essentially comprising natural or synthetic rubber next to a fibrous or filamentary layer
• B32B 1/08 - Tubular products
• B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
• D03D 3/02 - Tubular fabrics
• F16L 58/10 - Coatings characterised by the materials used by rubber or plastics
• B29C 48/09 - Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
• B29C 48/10 - Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
• B29C 48/151 - Coating hollow articles
• B29C 48/152 - Coating hollow articles the inner surfaces thereof