Abstract Improved antistatic protection has been achieved in synthetic fibers, particularly synthetic staple fibers, by treating the fibers with salts of 1. POLYOXYETHYLENE OR POLYOXYPROPYLENE AMINES; AND 2. PHOSPHORIC ACID ESTERS OF A. MONOHYDROXY ALKYL ALCOHOLS OR B. POLYOXY (ETHYLENE OR PROPYLENE) MONOALKYL ETHERS. Most synthetic fibers such as polyamide, acrylic and polyester fibers are hydrophobic and tend to develop and retain static charges. Before such fibers can be converted into textiles, it is necessary to apply an antistatic finish. It is most economical to apply such a finish to the fiber at the point of manufacture. This requires application to a large rope of continuous filaments travelling at high speed. A suitable finish must have a lowviscosity and a low-surface tension in solution in order to penetrate the tow rapidly. The finish on the fiber should remain nontacky even when exposed to humid air. If the finish becomes tacky, the fibers cannot be carded and spun into uniform yarns.
PHOSPHORIC ACID ESTERS OF A. MONOHYDROXY ALKYL ALCOHOLS OR B. POLYOXY (ETHYLENE OR PROPYLENE> MONOALKYL ETHERS. MOST SYNTHETIC FIBERS SUCH AS POLYAMIDE, ACRYLIC AND POLYESTER FIBERS ARE HYDROPHOBIC AND TEND TO DEVELOP AND RETAIN STATIC CHARGES. BEFORE SUCH FIBERS CAN BE CONVERTED INTO TEXTILES, IT IS NECESSARY TO APPLY AN ANTISTATIC FINISH. IT IS MOST ECONOMICAL TO APPLY AN ANTISTATIC FINISH. IT IS MOST ECONOMICAL TO APPLY SUCH A FINISH TO THE FIBER AT THE POINT OF MANUFACTURE. THIS REQUIRES APPLICATION TO A LARGE ROPE OF CONTINUOUS FILAMENTS TRAVELLING AT HIGH SPEED. A SUITABLE FINISH MUST HAVE A LOW-VISCOSITY AND A LOW-SURFACE TENSION IN SOLUTION IN ORDER TO PENETRATE THE TWO RAPIDLY. THE FINISH ON THE FIBER SHOULD REMAIN NONTACKY EVEN WHEN EXPOSED TO HUMID AIR. IF THE FINISH BECOMES TACKY, THE FIBERS CANNOT BE CARDED AND SPUN INTO UNIFORM YARNS.
Claim 4
Dependent Claim
141 words
PHOSPHORIC ACID ESTERS OF A. MONOHYDROXY ALKYL ALCOHOLS OR B. POLYOXY (ETHYLENE OR PROPYLENE> MONOALKYL ETHERS. MOST SYNTHETIC FIBERS SUCH AS POLYAMIDE, ACRYLIC AND POLYESTER FIBERS ARE HYDROPHOBIC AND TEND TO DEVELOP AND RETAIN STATIC CHARGES. BEFORE SUCH FIBERS CAN BE CONVERTED INTO TEXTILES, IT IS NECESSARY TO APPLY AN ANTISTATIC FINISH. IT IS MOST ECONOMICAL TO APPLY AN ANTISTATIC FINISH. IT IS MOST ECONOMICAL TO APPLY SUCH A FINISH TO THE FIBER AT THE POINT OF MANUFACTURE. THIS REQUIRES APPLICATION TO A LARGE ROPE OF CONTINUOUS FILAMENTS TRAVELLING AT HIGH SPEED. A SUITABLE FINISH MUST HAVE A LOW-VISCOSITY AND A LOW-SURFACE TENSION IN SOLUTION IN ORDER TO PENETRATE THE TWO RAPIDLY. THE FINISH ON THE FIBER SHOULD REMAIN NONTACKY EVEN WHEN EXPOSED TO HUMID AIR. IF THE FINISH BECOMES TACKY, THE FIBERS CANNOT BE CARDED AND SPUN INTO UNIFORM YARNS.
Claim 5
Dependent Claim
11 words
about 12 parts of the dioleyl ester of phosphoric acid; and
Claim 6
Dependent Claim
11 words
about 12 parts of the dioleyl ester of phosphoric acid; and
Claim 7
Dependent Claim
13 words
about 50 parts of polyethyleneglycol monolaurate having a molecular weight of about 400.
Claim 8
Dependent Claim
13 words
about 50 parts of polyethyleneglycol monolaurate having a molecular weight of about 400.