Loop length correction of spirally set textile fabric in process

Details Loop length correction of spirally set textile fabric in process Loop length correction of spirally set textile fabric in process

1977-02-14

1978-08-22

Coe, Philip R.

Bleaching and dyeing; fluid treatment and chemical modification

Fluid treatment

Special forms and forming

68 13R, 68 22R, 68176, 226 43, D06B 310, D06B 1700, D06B 2300

Patent

active

041078012

ABSTRACT:
A method of correcting individual loop lengths of a spirally looped textile fabric in a processing apparatus comprises the steps of: connecting a leader cloth having detectable portions spaced apart by a predetermined distance commensurate with an ideal loop length to the introduction end of the textile fabric remaining in the processing chamber; feeding the textile fabric in the forward direction while the textile fabric is subjected to the processing operation; stopping the travel of only the leading end of the leader cloth upon detection of the leading detectable portion at the leading position of the first loop length portion; feeding the remaining textile fabric, with the leading end of the leader cloth stopped, until the trailing detectable portion is detected at the trailing position of the first loop length portion; releasing the stoppage of the leading end of the leader cloth to correct the loop length of the first loop length portion; and repeating the above described correcting steps for the other loop length portions. Alternatively, the said ideal loop length is determined by counting the number of rotations of the squeeze roll assembly after detection of the leading detectable portion at the trailing position of the loop length portion.

REFERENCES:
patent: 2998175 (1961-08-01), Topping
patent: 3148816 (1964-09-01), Martin et al.
patent: 3848438 (1974-11-01), Tachibana et al.
patent: 3875769 (1975-04-01), Inoue
patent: 3931722 (1976-01-01), Isoda
patent: 3977220 (1976-08-01), Clark et al.

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