Polyester Pile Fabric Having Excellent Soft Hand, Abrasion Resistance And Bathochromic Effect

Abstract

The pile fabric having a very soft hand, a high abrasion resistance and a good bathochromic effect comprises a ground structure portion constituted from a polyester filament yarns and having a knitted or woven structure and a pile portion comprising polyester filaments knitted or woven into the ground structure portion. The polyester filaments for the pile portion have a flat cross-sectional profile with a flat ratio of 2 to 6, and an individual filament thickness of 0.5 to 1.5 dtex. In the flat cross-sectional profile, least two pairs of mutually opposite concavities (valley portions) are formed.

1 . A polyester pile fabric 
 comprising a ground structure portion having a knitted or woven structure formed from polyester filaments yarns, and a pile portion comprising a polyester filament yams knitted or woven into the ground structure portion,    the pile portion having a cut pile layer formed on one side of the ground structure portion and comprising the polyester fibers,    the polyester fibers, form which the pile portion is formed, having an individual fiber thickness of 0.5 to 1.5 dtex and a flat cross-sectional profile,    the flat ratio of the flat cross-sectional profile represented by a ratio B/C1 wherein B represents the maximum width of the cross-sectional profile, and C1 represents the maximum thickness the profile in the direction at right angles to the maximum width direction, being from 2 to 6, and at least two pairs of concavities each pair of which are mutually oppositely protruded inward from the two sides of the flat cross section facing each other extending along the maximum width B in the flat cross-sectional profile being formed, whereby the polyester pile fabric exhibits high soft hand, abrasion resistance and bathochromic effect.    
   
   
       2 . The polyester pile fabric according to  claim 1 , wherein the individual fiber thickness of the flat polyester fibers for the pile portion is from 0.6 to 1.4 dtex.  
   
   
       3 . The polyester pile fabric according to  claim 1 , wherein the ratio C1 /C2 wherein C1 represents the maximum thickness in the flat cross-sectional profile of the flat polyester fibers for the pile portion, and C2 is the minimum thickness in the profile, is from 1.05 to 4.00.  
   
   
       4 . The polyester pile fabric according to  claim 1 , wherein the flat polyester filaments for the pile portion contain a delustering agent in an amount of 2.5% or less by mass based on the mass of the flat polyester filaments.  
   
   
       5 . The polyester pile fabric according to  claim 1 , wherein the flat polyester filament yarns for the pile portion are non-twisted yarns.  
   
   
       6 . The polyester pile fabric according to  claim 1 , wherein the distribution density of the flat polyester fiber piles in the cut pile layer is from 5×10 4  to 20×10 4  dtex/cm 2 , and a pile density cover factor defined by the formula;  
         PDF=PN× 1/√ D    
     wherein PDF represents a pile density cover factor, PN represents the number of pile fibers distributed in an area of 1 cm 2  of the pile layer, and D represents a pile individual filament thickness (dtex), is 2×10 4  or more.  
   
   
       7 . The polyester pile fabric according to  claim 1 , wherein at least the flat polyester filament yams from which the pile portion is are dyed yams.  
   
   
       8 . Fiber articles for interior automotive trims or interiors comprising the polyester pile fabric according to  claim 1 .  
   
   
       9 . Fiber articles for interior automotive trims or interiors comprising the polyester pile fabric according to  claim 2 .  
   
   
       10 . Fiber articles for interior automotive trims or interiors comprising the polyester pile fabric according to  claim 3 .  
   
   
       11 . Fiber articles for interior automotive trims or interiors comprising the polyester pile fabric according to  claim 4 .  
   
   
       12 . Fiber articles for interior automotive trims or interiors comprising the polyester pile fabric according to  claim 5 .  
   
   
       13 . Fiber articles for interior automotive trims or interiors comprising the polyester pile fabric according to  claim 6 .  
   
   
       14 . Fiber articles for interior automotive trims or interiors comprising the polyester pile fabric according to  claim 7.