IP Library Granted Patent US 7,909,041
Granted Patent B2
US 7,909,041 · App. 10/544,573 · Granted Mar 22, 2011

Double-faced adhesive tape and wing with the same

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Quick Facts
Patent No.
US 7,909,041
App. No.
10/544,573
Granted
Mar 22, 2011
Kind
B2
Abstract

A double-stick adhesive tape ( 10 ) for fixing a wig ( 100 ) to a head, of which the surface of at least one side ( 12 ) of both sides of adhesive layers ( 12, 13 ) on a core material ( 11 ) is deglossed by forming minute concavity and convexity ( 12 a ), one side of adhesive layer ( 12 ) is formed to have a thickness to bury at least more than half of a wire diameter of the filament ( 103 ) used as a net member of a wig base ( 101 ), thereby one side of adhesive layer ( 12 ) is set inside of a network ( 104 ) of the net member, and bonded to the net member, a filament ( 103 ) is peripherally bonded with the adhesive layer ( 12 ) and the other adhesive layer ( 13 ) is bonded to the head.

Claims (7)

1. A double-stick adhesive tape for a wig having a net member as a portion of a wig base, comprising:

a first adhesive surface layer having a thickness more than half of a diameter of the net member to stick to the net member, and

a second adhesive surface layer having a thickness equal to or more than a diameter of human hair,

wherein the first adhesive surface layer is thicker than the second adhesive surface layer, and a side of the first adhesive surface layer to the net member has convexities and concavities of the type formed on the surface by pressing, or blast processing, in order to scatter light.

2. The double-stick adhesive tape for the wig as set forth in claim 1 , wherein the thickness of the first adhesive surface layer is between 50 and 200 μm and the thickness of the second adhesive surface layer is between 50 and 150 μm.

3. The double-stick adhesive tape for the wig as set forth in 1 , wherein the concavities and convexities are provided by pressing the first adhesive surface layer with a press.

4. The double-stick adhesive tape for the wig as set forth in claim 1 , wherein the concavities and convexities are formed by blast processing.

Assignments (3)
CHANGE OF NAME Recorded Jan 18, 2011
From: ADERANS HOLDINGS CO., LTD.
To: UNIHAIR CO., LTD.
Reel/Frame 025656/0405 →
CHANGE OF NAME Recorded May 8, 2008
From: ADERANS CO., LTD.
To: ADERANS HOLDINGS CO., LTD.
Reel/Frame 020919/0645 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 5, 2005
From: YONEDA, YOSHIHIRO; MAKINO, MASAHIRO; SATO, AKEMI; KAWASAKI, MUTSUMI; ASAKURA, KIWAKO
To: ADERANS CO., LTD.
Reel/Frame 017568/0132 →