US 12,150,847 B2
Roll-type hook tape for providing disposable diaper hook member
Jong Ryep Kim, Daegu (KR); Kwang Su Yeo, Gumi-si (KR); Man Bae Lim, Daegu (KR); Jung In Park, Daegu (KR); and Se Cheol Hwang, Gimcheon-si (KR)
Assigned to LARK INDUSTRIES CO., LTD., Gimcheon-si (KR)
Filed by LARK Industries Co., Ltd., Gimcheon-si (KR)
Filed on Jan. 3, 2022, as Appl. No. 17/567,602.
Claims priority of application No. 10-2021-0077137 (KR), filed on Jun. 15, 2021.
Prior Publication US 2022/0395410 A1, Dec. 15, 2022
Int. Cl. A61F 13/62 (2006.01); A61F 13/49 (2006.01); A61F 13/56 (2006.01); C09J 7/21 (2018.01); C09J 7/29 (2018.01); C09J 7/35 (2018.01)
CPC A61F 13/625 (2013.01) [A61F 13/49007 (2013.01); A61F 13/5622 (2013.01); C09J 7/21 (2018.01); C09J 7/29 (2018.01); C09J 7/35 (2018.01); C09J 2301/304 (2020.08)] 3 Claims
OG exemplary drawing
 
1. A roll-type hook tape for providing a disposable diaper hook member, which is continuously manufactured in a band shape having a thin thickness and a predetermined width to provide a hook member for a disposable diaper, and is wound in a roll shape to be commercialized, and is cut to a predetermined length from the roll when used as a hook member of the disposable diaper, the roll-type hook tape comprising:
a hook base nonwoven fabric of a band shape in which a non-woven fabric and a thermoplastic resin are laminated; and
a handle portion formed on the upper end of a front surface of the base non-woven fabric so as to enable a user to hold and detach the hook member with a hand, wherein the hook member has waves and an identification color so that the user can easily hold it with the hand and easily distinguish it from the disposable diaper having a white background,
wherein a hot melt adhesive is applied to the entire surface of the front surface of the base non-woven fabric except for the handle portion,
wherein two or more narrow hooks are fixed below the handle portion of the front surface of the hook base nonwoven fabric coated with the hot melt adhesive to be spaced apart from one another at a division interval, and the division interval between the two or more narrow hooks is 0.5 mm to 1.9 mm based on the thickness of the narrow hooks which is 0.25 mm to 0.6 mm,
wherein a first diaper fastening portion to be attached to one side of a diaper band portion is disposed on the front surface of the hook base nonwoven fabric on which the hot melt adhesive spaced apart from the narrow hooks at a predetermined interval is coated;
wherein a wing film having a second diaper fastening portion which is attached to the diaper band portion on the opposite side of the first diaper fastening portion is fixed on an upper side of the first diaper fastening portion; and
wherein the wing film is a resin film which has a thickness of 0.1 mm or less, a portion of the wing film is fixed on the front surface of the hook base nonwoven fabric on which the hot melt adhesive between the first diaper fastening portion and the narrow hooks is adhered, a rear surface of the second diaper fastening portion is temporarily adhered by the hot melt adhesive after the second diaper fastening portion is folded upwards, and a front surface of the second diaper fastening portion of the wing film is coated with the hot melt adhesive through additional process.