Abstract: An improved, reduced tension, automatic yarn sampling device, and a process for its use, is disclosed. The device exerts significantly lower tension on multifilament yarn thread than that tension typically required to approach the deformation yield point of partially oriented yarn.

Abstract: System and method for forming a halftone image by scanning without visible moire interference. Alternate scan lines are sampled with clock signals of different phases to produce a displacement between adjacent scan lines in the output image. This displacement reduces the increase in spot width which would otherwise produce moire interference, with no increase in the rate at which the video signal is sampled.

Abstract: Static tow inverting apparatus for inverting the overlap of overlapping layers of a continuous length filamentary tow band of textile material deposited onto the surface of a moving conveyor in relaxed condition for treatment, such as in the thermal heat setting treatment of a band of tow which has been subjected to a mechanical crimping operation. The tow inverter comprises a pair of stationary plates which are disposed above the surface of a moving conveyor to receive a continuous length of tow in a plurality of overlapping layers thereon. The opposed surfaces of the spaced plates define a downwardly curving passageway for gravitational conveyance of the overlapping layers of tow through a reversing direction of movement to deposit the same on the surface of the moving conveyor with preceding layers of tow overlying succeeding layers of tow in the direction of movement on the conveyor.

Abstract: The present invention is directed to a clear, flexible, coated, biaxially oriented polyester film comprising a polyester film support and a radiation curable silicone coating on at least a portion of the support. The radiation curable silicone coating is derived from a dispersion of colloidal silica in an alcohol-water solution of the partial condensate of specified silanols and multifunctional acrylate monomers and oligomers with optional photoinitiators.

Abstract: A polyester film coated with an antistatic coating is provided. The film includes a polyester film support coated on at least one side with a latex coating. The coating includes stearamidopropyldimethyl-.beta.-hydroxy-ethylammonium nitrate present in a concentration in the range of between about 2.75 percent and 3.25 percent by weight, based on the total weight of the latex coating. The coating further includes a cross-linkable methylmethacrylate-ethylacrylate-methacrylamide terpolymer having a glass transition temperature in the range of between about 40.degree. C. and 50.degree. C. The terpolymer is present in a concentration in the range of between about 0.75 percent and 1.25 percent by weight, based on the total weight of the latex coating. The weight ratio of the nitrate to the terpolymer ranges between about 2.75:1 to below 3:1.A process for forming the above film is also disclosed.