US 12,133,579 B2
Method for manufacturing fastener stringer
Toshiyuki Jyogan, Kurobe (JP); and Takashi Saito, Kurobe (JP)
Assigned to YKK Corporation, Tokyo (JP)
Filed by YKK Corporation, Tokyo (JP)
Filed on Jun. 28, 2023, as Appl. No. 18/343,604.
Application 18/343,604 is a division of application No. 17/134,234, filed on Dec. 25, 2020, granted, now 11,744,332.
Claims priority of application No. 2019-238802 (JP), filed on Dec. 27, 2019; and application No. 2020-017657 (JP), filed on Feb. 5, 2020.
Prior Publication US 2023/0380551 A1, Nov. 30, 2023
Int. Cl. A44B 19/00 (2006.01); A44B 19/34 (2006.01); C11D 3/04 (2006.01)
CPC A44B 19/34 (2013.01) [C11D 3/044 (2013.01); C11D 2111/12 (2024.01)] 8 Claims
OG exemplary drawing
 
1. A method for manufacturing a fastener stringer, the method comprising:
a dyeing step for dyeing a fastener stringer including an element row fixed to a side edge portion of a tape made of fiber;
a dye cleaning step for removing excess dye from the fastener stringer;
a water repellent treatment step for adhering a non-fluorine-based water repellent agent to the fastener stringer; and
a pre-dyeing degreasing step for degreasing oil and fat adhered to the fastener stringer by a wet process.