IP Library Patent Application 10589287
Patent Application
App. No. 10/589,287

Ink for screen printing, method for producing same, and method for manufacturing edge and damper of speaker using same

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Quick Facts
Patent No.
US None
App. No.
10/589,287
Abstract

A screen printing ink includes micelle structural particles formed by aggregating molecules of ammonium acrylate to dispersed particles containing phenol resin, and a dispersion medium for dispersing the micelle structural particle.

Claims (28)

1 . A screen printing ink comprising:

micelle structural particles formed by aggregating molecules of ammonium acrylate to dispersed particles containing phenol resin, and

a dispersion medium for dispersing the micelle structural particles.

2 . The screen printing ink according to claim 1 ,

wherein the dispersion medium is water.

3 . The screen printing ink according to claim 1 ,

wherein a hydrogen ion exponent of the ink is in a range of from pH 6.5 to pH 8.5.

4 . The screen printing ink according to claim 1 ,

wherein the phenol resin is contained in an amount of from 1.0 wt % to 14.0 wt %, and the ammonium acrylate is contained in an amount of from 2.0 wt % to 4.0 wt %.

5 . A screen printing ink production method comprising:

a step A for preparing latex by dispersing dispersed particles containing phenol resin into a dispersion medium, and

a step B for mixing a viscosity improver containing ammonium acrylate with the latex.

6 . The screen printing ink production method according to claim 5 , wherein

the step A includes;

preparing a phenol resin solution by mixing fine particles of the phenol resin and polyvinyl alcohol, and

preparing the dispersed particles by dispersing the phenol resin solution into the dispersion medium.

7 . The screen printing ink production method according to claim 5 ,

wherein the viscosity improver is an aqueous solution of the ammonium acrylate.

8 . The screen printing ink production method according to claim 5 ,

wherein the viscosity improver has a hydrogen ion exponent in a range of from pH 6.5 to pH 8.5.

9 . A production method of a speaker edge comprising:

forming a printed pattern on a fabric by screen printing by using an ink, the ink including micelle structural particles formed by aggregating molecules of ammonium acrylate to dispersed particles containing phenol resin, and a dispersion medium for dispersing the micelle structural particles,

heat-molding a portion of the printed pattern into a predetermined shape, and

cutting out the heat-molding portion.

10 . A production method of a speaker damper comprising:

forming a printed pattern on a fabric by screen printing by using an ink, the ink including micelle structural particles formed by aggregating molecules of ammonium acrylate to dispersed particles containing phenol resin, and a dispersion medium for dispersing the micelle structural particles,

heat-molding a portion of the printed pattern into a predetermined shape, and

cutting out the heat-molding portion.

Assignments (2)
CHANGE OF NAME Recorded Nov 24, 2008
From: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
To: PANASONIC CORPORATION
Reel/Frame 021897/0689 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 23, 2007
From: MIZONE, SHINYA; TAKAHASHI, YOSHIYUKI; SONE, YUKIO; OKUDA, KEIJI
To: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
Reel/Frame 019194/0226 →