Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Process to reduce pilling of polyester knit fabrics
T995001 Process to reduce pilling of polyester knit fabrics
Patent Drawings:

Inventor: Bass
Date Issued: June 3, 1980
Application: 06/069,232
Filed: August 23, 1979
Inventors: Bass; Stephen (Wilmington, DE)
Assignee:
Primary Examiner:
Assistant Examiner:
Attorney Or Agent:
U.S. Class: 8/139
Field Of Search:
International Class:
U.S Patent Documents:
Foreign Patent Documents:
Other References:









Abstract: The pilling propensity of knit fabric from polyester staple fiber can be reduced by scouring the fabric at a temperature in the range of about 160.degree. to 205.degree. F. for from about 15 to 60 minutes in a 0.3 to 1.0% aqueous caustic solution containing about 0.001 to 0.1% of a quaternary ammonium salt of the formula: ##STR1## wherein R is an alkylene radical of 2 to 3 carbon atoms, R' is H or phenyl, R" is a C.sub.12 -C.sub.18 hydrocarbon radical, x is 2 or 3, y is 0 to 3, and Z.sup.- is an anion, preferably the dimethyl sulfate quaternary ammonium salt of bis(hydroxy-tri-1,2-propyleneoxy-2-ethyl)tallowamine. After scouring, the fabric is normally rinsed, neutralized, rinsed again and dried.
Claim:
Description:
 
 
  Recently Added Patents
Charge pump and method of biasing deep N-well in charge pump
Semiconductor device and method for manufacturing the same
Polymeric structures comprising a siloxane
Compact light shield for flash photography
Case for camera
Hardware/software debugging using memory access parameters
Methods for the production of aligned carbon nanotubes and nanostructured material containing the same
  Randomly Featured Patents
Toy block assembly puzzle
Metallized polypropylene film and process for manufacture
Hydrotreating process using novel multimetallic sulfide catalysts
Apparatus for generating a checksum
Low friction, ductile, multilayer electrodeposits
Assembly spike for athletic shoe
Coking reactor
Bottle with a one-piece corking means
Dicyclohexylethylene derivative
Connection structure for air bag cover and housing